Mask system with shroud

Description

FIELD OF THE INVENTION

The present invention relates to a mask system used for treatment, e.g., of Sleep Disordered Breathing (SDB) with Continuous Positive Airway Pressure (CPAP) or Non-Invasive Positive Pressure Ventilation (NIPPV).

BACKGROUND OF THE INVENTION

Patient interfaces, such as a full-face or nasal mask systems, for use with blowers and flow generators in the treatment of sleep disordered breathing (SDB), typically include a soft face-contacting portion, such as a cushion, and a rigid or semi-rigid shell or frame. In use, the interface is held in a sealing position by headgear so as to enable a supply of air at positive pressure (e.g., 2-30 cm H₂O) to be delivered to the patient's airways.

One factor in the efficacy of therapy and compliance of patients with therapy is the comfort and fit of the patient interface.

The present invention provides alternative arrangements of mask systems to enhance the efficacy of therapy and compliance of patients with therapy.

SUMMARY OF THE INVENTION

One aspect of the invention relates to a mask system provided without a forehead support adapted to engage the patient's forehead.

Another aspect of the invention relates to a mask system including a frame and a shroud removably connected to the frame and adapted to attach headgear.

Another aspect of the invention relates to a mask system including a frame defining a breathing chamber, a cushion provided to the frame and adapted to form a seal with the patient's face, and a shroud provided to the frame. The shroud and the frame are co-molded with one another. The frame is constructed of a first, relatively soft, elastomeric material and the shroud is constructed of a second material that is more rigid than the frame. At least a portion of the frame includes a concertina section having a plurality of folds. Each of the folds has a side wall with the side walls of the folds becoming progressively longer away from the patient's face.

Another aspect of the invention relates to a cushion module including a frame defining a breathing chamber and a cushion adapted to form a seal with the patient's face. The frame and the cushion are co-molded with one another. The cushion is constructed of a first, relatively soft, elastomeric material and the frame is constructed of a second material that is more rigid than the cushion. At least a portion of the frame includes a concertina section.

Another aspect of the invention relates to a method for constructing a cushion module. The method includes molding a first part of the cushion module with a first, relatively soft, elastomeric material, co-molding a second part of the cushion module to the first part with a second material that is more rigid than the first material, and molding at least a portion of the second part to include a concertina section.

Another aspect of the invention relates to a shroud for a mask system including a retaining portion structured to retain a frame, a pair of upper headgear connectors each including an elongated arm and a slot at the free end of the arm adapted to receive a headgear strap, and a pair of lower headgear connectors each adapted to attach to a headgear strap, wherein the retaining portion, the upper headgear connectors, and the lower headgear connectors are integrally formed as a one piece structure.

Another aspect of the invention relates to a mask system including a frame defining a breathing chamber, a cushion provided to the frame and adapted to form a seal with the patient's face, a shroud provided to the frame and adapted to attach headgear, and an elbow provided to the frame and adapted to be connected to an air delivery tube that delivers breathable gas to the patient. The shroud includes a retaining mechanism structured to establish a positive connection between the shroud and the frame.

Another aspect of the invention relates to a mask system including a frame defining a breathing chamber and a cushion provided to the frame. The cushion is adapted to engage at least a portion of the patient's face. The cushion includes a base wall connected to an undercushion layer and a membrane, wherein the membrane extends around the perimeter of the cushion and contacts the patient's face. The undercushion layer is positioned underneath the membrane and supports the membrane. The under cushion layer provides differential support to the membrane at predetermined regions of the face.

Another aspect of the invention relates to a mask assembly for use in medical applications having a top and bottom ends defined by its position relative to a patient's face, wherein the mask assembly is connected to a plurality of flexible straps, which are adapted to engage the patient's head. The flexible straps engage at least two elongated rigid arms integrally molded to a portion of the mask assembly, and wherein the elongated arms are molded to the mask assembly proximal to the top end of the mask assembly.

Another aspect of the invention relates to a mask assembly for use in medical applications including a main body connected to a cushion adapted to cover nose and/or mouth and wherein the mask assembly is attached by a force substantially perpendicular towards the face and wherein the force is approximately constant along the length of the mask and is balanced by a portion of the cushion engaging the patient's cheeks.

Another aspect of the invention relates to a cushion for use with a medical mask including an outer membrane layer adapted to sealably engage a face and an undercushion layer adapted to support the membrane layer. The membrane or undercushion layer includes a surface positioned between the two layers adapted to allow the layers to slide against the respective surface.

Another aspect of the invention relates to a mask system including a frame defining a breathing chamber, a cushion provided to the frame and adapted to form a seal with the patient's face, and a releasable shroud adapted to engage a portion of the outer surface of the frame, wherein the shroud is connected to straps to position the mask system.

Another aspect of the invention relates to a mask assembly for use in medical applications including an upper end and a lower end wherein the upper end is adapted to cover the nose and the lower end is adapted to cover the mouth of a patient. The mask assembly includes no forehead support and includes two stiffened members attached to the upper end on opposed sides of the mask assembly, and wherein the stiffened members include a general curved shape and adapted to avoid covering the patient's field of vision.

Another aspect of the invention relates to a cushion for attaching to a medical mask, wherein the cushion is flexible and includes a membrane attached to the circumference of the cushion adapted to seal against the face of a patient, and at least one undercushion adapted to support the membrane and positioned underneath the membrane to prevent collapse of the membrane, in use. The membrane is softer than the undercushion. The undercushion in the regions of nasal bridge or chin is between 0 mm and 30 mm in height as measured between the base and the tip of the undercushion.

In an alternative embodiment, the mask system may include a headgear connector or rigidizer structured to attach to the frame with a snap-fit, mechanical interlock, friction fit, and/or grommet arrangement (e.g., constructed of rubber).

In an alternative embodiment, the mask system may include headgear having an arrangement of straps constructed of silicone and/or Breath-O-Prene™ material.

Other aspects, features, and advantages of this invention will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, which are a part of this disclosure and which illustrate, by way of example, principles of this invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings facilitate an understanding of the various embodiments of this invention. In such drawings:

FIG. 1 is a front perspective view of a mask system according to an embodiment of the present invention;

FIG. 1B is a perspective view showing the mask system of FIG. 1 with headgear positioned on a patient's head;

FIG. 1C is a cross-sectional view through the mask system of FIG. 1;

FIG. 1D is another cross-sectional view through the mask system of FIG. 1;

FIG. 1E is a side view of the mask system of FIG. 1;

FIG. 2 is a front perspective view showing the frame and cushion of the mask system of FIG. 1;

FIG. 3 is an exploded perspective view of the mask system of FIG. 1 showing the frame, cushion, shroud, and elbow;

FIG. 4 is another exploded perspective view of the mask system of FIG. 1 showing the frame, cushion, and shroud;

FIG. 5 is an exploded perspective view of the mask system of FIG. 1 showing the shroud and assembled frame/cushion;

FIG. 6 is a front perspective view showing the shroud of the mask system of FIG. 1;

FIG. 7 is a front perspective view showing the cushion of the mask system of FIG. 1;

FIG. 8 is a cross-sectional view showing a portion of the cushion of FIG. 7;

FIG. 8B is a cross-sectional view through nasal bridge and chin regions of the cushion of FIG. 7;

FIG. 9 is a plan view of headgear laid out flat according to an embodiment of the present invention;

FIG. 10 is a front perspective view of a mask system according to another embodiment of the present invention;

FIG. 11 is a front perspective view showing the frame of the mask system of FIG. 10;

FIG. 12 is a front view showing the frame of the mask system of FIG. 10;

FIG. 13 is a side view showing the frame of the mask system of FIG. 10;

FIG. 14 is a front perspective view showing the shroud of the mask system of FIG. 10;

FIG. 15 is a front view showing the shroud of the mask system of FIG. 10;

FIG. 16 is a side view showing the shroud of the mask system of FIG. 10;

FIG. 17 is a rear perspective view showing the shroud of the mask system of FIG. 10;

FIGS. 18-1 to 18-2 are cross-sectional views showing in sequential relation attachment of the shroud to the frame of the mask system of FIG. 10;

FIGS. 19-1 to 19-4 are cross-sectional views showing in sequential relation attachment of the shroud to the frame of the mask system of FIG. 10;

FIG. 20 is a perspective view showing an alternative arrangement for attaching the shroud to the frame;

FIG. 21 is a rear perspective view showing the shroud of the mask system of FIG. 10;

FIG. 22 is a cross-sectional view showing attachment of the shroud to the frame of the mask system of FIG. 10;

FIG. 23 is a cross-sectional view showing attachment of the shroud, frame, and elbow of the mask system of FIG. 10;

FIG. 24 is a cross-sectional view showing an alternative arrangement for attaching the shroud to the frame;

FIG. 25 is a front perspective view of a mask system according to another embodiment of the present invention;

FIG. 26 is a rear perspective view of the mask system of FIG. 25;

FIG. 27 is a front perspective view of a mask system according to another embodiment of the present invention;

FIG. 28 is an exploded view of the mask system shown in FIG. 27;

FIG. 29 is an enlarged front perspective view of the mask system shown in FIG. 17;

FIG. 30 is a side view of the mask system shown in FIG. 27;

FIGS. 31-1 is a rear view of a cushion according to an embodiment of the present invention;

FIG. 31-2 is a front view of the cushion shown in FIG. 31-1 with a partial cut-away;

FIG. 31-3 is a cross-section view through line 31-3-31-3 in FIG. 31-1;

FIG. 31-4 is a cross-section view through line 31-4-31-4 in FIG. 31-1;

FIG. 31-5 is a cross-section view through line 31-5-31-5 in FIG. 31-1;

FIGS. 32-1 to 32-3 illustrate top, front, and side views respectively of a concertina section according to an embodiment of the present invention;

FIG. 33 is a side view of a mask system according to a variation of the present invention;

FIG. 34 illustrates a cushion including a concertina section according to an embodiment of the present invention;

FIGS. 35-1 to 35-3 are front, side, and rear views of a mask system according to another embodiment of the present invention;

FIG. 36 is a perspective view of a shroud for a mask system according to an embodiment of the present invention;

FIGS. 37-1 to 37-3 are perspective, front, and side views of a mask system according to another embodiment of the present invention;

FIGS. 38-1 to 38-5 are perspective, front, top, side, and bottom views of a shroud of the mask system shown in FIGS. 37-1 to 37-3;

FIGS. 39-1 to 39-6 are perspective, front, side, bottom, and top views of a mask system according to another embodiment of the present invention;

FIGS. 40-1 and 40-2 are perspective and side views of a mask system according to another embodiment of the present invention;

FIG. 40-3 is a perspective view of the frame of the mask system shown in FIGS. 40-1 and 40-2;

FIGS. 40-4 and 40-5 illustrate a retaining member of the frame shown in FIG. 40-3;

FIGS. 40-6 and 40-7 illustrate a clip-on upper headgear connector of the mask system shown in FIGS. 40-1 and 40-2;

FIGS. 41-1 and 41-2 are rear and front perspective views of a mask system according to another embodiment of the present invention;

FIGS. 41-3 and 41-4 are exploded views of the mask system shown in FIGS. 41-1 and 41-2;

FIGS. 41-5 to 41-12 are various views of a clip-on upper headgear connector of the mask system shown in FIGS. 41-1 and 41-2;

FIG. 42-1 is a rear perspective view of a mask system according to another embodiment of the present invention;

FIG. 42-2 is an exploded view of the mask system shown in FIG. 42-1;

FIGS. 42-3 to 42-7 are various views of a clip-on upper headgear connector of the mask system shown in FIG. 42-1;

FIGS. 43-1 to 43-4 are perspective, side, front, and rear views of a mask system according to another embodiment of the present invention;

FIG. 44 illustrates a mask system according to another embodiment of the present invention; and

FIG. 45 illustrates a mask system according to another embodiment of the present invention.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

The following description is provided in relation to several embodiments or examples which may share common characteristics and features. It is to be understood that one or more features of any one embodiment or example may be combinable with one or more features of the other embodiments or examples. In addition, any single feature or combination of features in any of the embodiments or examples may constitute additional embodiments or examples.

In this specification, the word “comprising” is to be understood in its “open” sense, that is, in the sense of “including”, and thus not limited to its “closed” sense, that is the sense of “consisting only of”. A corresponding meaning is to be attributed to the corresponding words “comprise”, “comprised” and “comprises” where they appear.

The term “air” will be taken to include breathable gases, for example air with supplemental oxygen.

The term “shroud” will be taken to include components that partially or fully cover a second component within the illustrated embodiments. In an embodiment, the shroud may include the component that partially covers or is mounted on the frame components of the illustrated embodiments.

The term “positive connection” will be taken to include connections between components of the illustrated embodiments wherein connectors mounted on respective components are adapted to engage each other respectively.

1. Mask System

Embodiments of the invention are directed towards a mask system provided without a forehead support adapted to engage the patient's forehead. Such arrangement provides the mask system with a less obtrusive arrangement which does not significantly affect the patient's field of view. Although the system is designed such that a forehead support is not required, such a forehead support can be added if desired.

As described in greater detail below, the mask system includes a frame, a cushion provided to the frame and adapted to form a seal with the patient's face, a shroud provided to the frame and adapted to attach headgear, and an elbow provided to the frame and adapted to be connected to an air delivery tube that delivers breathable gas to the patient. Headgear may be removably attached to the shroud to maintain the mask system in a desired adjusted position on the patient's face. The mask system is intended for use in positive pressure therapy for users with Obstructive Sleep Apnea (OSA) or another respiratory disorder.

While each embodiment below is described as including a full-face or oro-nasal interface type, each embodiment may be adapted for use with other suitable interface types. That is, the interface type is merely exemplary, and each embodiment may be adapted to include other interface types, e.g., nasal interface, nasal mask, nasal prongs, etc.

2. Stabilizing Mechanisms

The stabilizing mechanisms (e.g., frame, shroud, headgear with associated headgear vectors) of a mask system according to embodiments of the invention are structured to accommodate the elimination of a forehead support from a full-face type interface. For example, a forehead support typically eliminates rotation of the mask system in the sagittal and coronal planes, so the mask system and headgear according to embodiments of the invention are structured to take on these functions since there is no forehead support.

The headgear is connected to the top and bottom of the frame either directly or via the shroud, which shroud provides headgear connection points for headgear positioned and arranged to stably maintain the mask system in position on the patient's face.

2.1 Frame

As shown in FIGS. 1, 1B-1E, and 2-5, the frame 1040 of the mask system 1010 is structured to maintain the cushion 1060, shroud 1020, and elbow 1070 in an operative position with respect to the patient's face. The frame 1040 is constructed (e.g., injection molded) from a more rigid material (e.g., polyurethane) than the cushion 1060 (made of, e.g., silicone), however other materials may function likely as well (e.g., polycarbonate). In an embodiment, the frame has a general wall thickness of about 1-2 mm, e.g., 1.5 mm.

The frame 1040 defines a breathing chamber or cavity adapted to receive the patient's nose and mouth and provide air communication to the patient. One or the lower portion of the frame 1040 includes an opening 1046 adapted to receive or otherwise communicate with the elbow 1070 (e.g., swivel elbow) and another or upper portion of the frame 1040 includes a vent arrangement 1076 for gas washout. In addition, the upper portion of the frame 1040 includes an interfacing structure 1048 adapted to interface or otherwise removably connect to the shroud 1020.

FIGS. 27-30 shows a mask system 10 including a frame 40 with a cushion 44 that provides a sealing portion or sealing ring adapted to form a seal with the patient's nose and/or mouth. Also, the frame 40 includes an opening 46 that is adapted to communicate with the elbow 70.

2.2 Shroud

As shown in FIGS. 1 and 3-6, the shroud 1020 is connected to the frame 1040 and is structured to attach headgear to the mask system. In an embodiment, the shroud 1020 is constructed (e.g., injection molded) of a resilient material including but not limited to plastic or nylon (e.g., Nylon 12). However, the shroud may be constructed of other suitable materials, e.g., polycarbonate, polypropylene, thermoplastic elastomer (TPE), Pocang, etc. In an embodiment, the shroud has a general wall thickness of about 1-2 mm, e.g., 1.3 mm.

The top end of the shroud 1020 is adapted to be positioned proximal to the nasal bridge region or nose of the patient and the bottom end is adapted to be positioned proximal to the mouth or chin of the patient. The top end includes an opening or vent receiving hole 1021 to accommodate the vent arrangement 1076 that protrudes from the frame 1040, and the bottom end includes an opening or elbow hole 1032 to accommodate the elbow 1070 and elbow opening into the frame 1040 (e.g., shroud provides no contact with elbow when assembled).

Upper headgear connectors 1024 extend from each side of the top end, and lower headgear connectors 1025 extend from each side of the lower end. The headgear connectors 1024, 1025 may be integrally molded or otherwise attached to the shroud.

2.2.1 Upper Headgear Connectors

Each upper headgear connector 1024 includes an elongated arm 1026 and a slot or receiving hole 1027 at the free end of the arm 1026 adapted to receive a respective headgear strap. In use, the arms 1026 extend around the face of the patient in a generally concave angle below the eyes of the patient so as to avoid the patient's field of view, i.e., direct headgear away from the patient's eyes. For example, as shown in FIG. 1E, each arm 1026 may extend at an angle α between about 10-25° (e.g., 17°) with respect to horizontal. That is, each arm 1026 is suitably formed, shaped, or contoured to follow the contours of the patient's face and avoid line of sight in use. In an embodiment, the shape of the arms may be generally arcuate and adapted to extend in a direction across the cheek of the patient, while avoiding the eyes or limiting the field of vision. In an embodiment, the arms may be integrally molded to the shroud of the mask system. One possible advantage of molding the arms onto the shroud is that it greatly increases manufacturability and also the shroud may be easily replaced in the case of accidental breakage of the arms rather than replacing the complete mask system. Additionally, molding of the arms onto the shroud may greatly increase the strength of the connection and reduce or limit the actual likelihood of breakage of the arms.

In an embodiment, the arms 1026 are at least semi-rigid (e.g., relatively rigid) so as to prevent up and down movement or bending of the arms relative to the face of the patient. Thus, the arms 1026 may act as rigidizers to effectively act as a level arrangement and generate a mechanical advantage wherein the pressure or force applied to top end of the mask system is readjusted to a fulcrum point being about the center of balance between the top and bottom ends of the mask system. In an embodiment, the arms are attached to the highest possible point relative to the mask system to additionally stabilize the configuration. In an embodiment, the fulcrum point or moment of pivoting is positioned between the upper and lower connection points of the straps, and wherein the design, angle, length and/or configuration of the arms 1026 may effectively adjust the fulcrum point. In the illustrated embodiment, the fulcrum point is shown to be between the vent arrangement and elbow of the mask system. Additionally, when positioned on the face, the mask system may have a fulcrum point around or about the region between the bottom of the patient's nose and lip area. This feature effectively stabilizes the mask system on the patient's face without the traditional need for a forehead support.

The net result of the arms 1026 mounted in a position extending from the top end of the mask system around the face of the patient is that the mask system is more stable and reduces the net torsional forces experiences about the x-axis 1001 (see FIG. 1) for the mask system in use. Please note that the arms 1026 may be rigidly connected to the mask system in other suitable positions to generate a similar result.

In an embodiment, the arms 1026 may be used to stabilize the mask system by contacting the patient's face at the cheeks. A cheek pad may be provided to the inner surface of the arm to support the arm on the patient's cheek in use. Also, the arms 1026 may be enveloped in a soft fabric sleeve to act as additional padding against the cheeks of the patient. The soft fabric sleeve may be in the configuration of an elastic tube covering a portion of the arms 1026.

2.2.2 Lower Headgear Connectors

Each lower headgear connector 1025 includes an abbreviated arm and a clip receptacle 1031 at the free end of the arm adapted to be removably interlocked with a headgear clip associated with a respective headgear strap. The clips allow for easier positioning or donning/removal of the mask system. In an embodiment, the abbreviated arms and clips are also relatively rigid so as to prevent lateral movement of the arms along the y-axis 1002, relative to the mask system in use.

FIGS. 27-30 illustrate an exemplary headgear clip 33 adapted to be removably interlocked with a clip receptacle 31. As best shown in FIG. 28, each clip 33 includes two spring arms 35 adapted to interlock with the respective clip receptacle 31 with a snap-fit and a slot 37 adapted to receive a respective headgear strap in use.

2.2.3 Alternative Headgear Connectors

As shown in FIGS. 27-30, the arm 26 may be removably coupled to the shroud, e.g., arm 26 includes clip structure adapted to removably interlock with a clip receptacle provided to the shroud. This arrangement allows different styles of upper and lower headgear connectors to be used with the shroud, e.g., arms for both upper and lower headgear connectors, clips for both upper and lower headgear connectors, different length arms for upper and lower headgear connectors, etc.

However, the shroud may provide other suitable arrangements for attaching headgear straps of headgear. Also, the shroud may include one or more additional components, e.g., forehead support.

2.2.4 Headgear Connector Positioning

In the embodiment of FIGS. 1-6, the upper and lower headgear connectors 1024, 1025 provide headgear connection points that are as far from each other as possible (i.e., top and bottom of frame) to allow for greater adjustability (e.g., allows adjustment at the top and bottom of the mask system) and stability (e.g., anchor points spread out around the mask system so more secure on the patient's face). Also, the upper headgear connectors are positioned as close to the top of the mask system as possible without obstructing the patient's eyes in use.

2.2.5 Separate Shroud

In the embodiment of FIGS. 1-6, the shroud 1020 is formed separately (e.g., molded) and attached to the frame 1040. Such arrangement facilitates molding of the shroud, allows different materials to be used for the frame and shroud (e.g., frame can be semi-rigid or rigid for stability and shroud with headgear rigidizers can be flexible for adjustment, allows the shroud to hide elbow retention features around elbow/frame opening for retaining elbow to frame (e.g., provides visual shroud for aesthetics), allows frame to be free of lower clip receptacles, allows shroud to be used with different size frames, and allows the shroud to be designed or stylized to minimize obtrusiveness of the mask system. The separate shroud may also allow the headgear, frame, cushion, and/or elbow to be replaced or washed independently.

2.2.6 Sleeves

In an embodiment, soft fabric sleeves may be mounted on the upper and/or lower headgear connectors. For example, the sleeves may be elastic and adapted to slide over the arms of the headgear connectors to form a tight fit. In an embodiment, the sleeves form elastic tubes. The sleeves may be padded to increase the comfort of the mask system in use. The sleeves may be particularly useful where the arms of the headgear connectors contact the patient's skin, e.g., to protect the patient's skin from irritation.

2.2.7 Arm Extends Over the Patient's Ear

FIGS. 35-1 to 35-3 and 36 illustrate a shroud 220 for mask system 210 according to another embodiment of the present invention. The shroud 220 includes an annular retaining portion 222 structured to retain the frame 240 and upper and lower headgear connectors 224, 225 on each side of the retaining portion 222. In the illustrated embodiment, the shroud 220 is integrally formed in one piece (e.g., see FIG. 36).

In the illustrated embodiment, each upper headgear connector 224 includes an elongated arm 226 and a slot 227 at the free end of the arm 226 adapted to receive a respective rear strap 298 in use. As illustrated, the arm 226 is suitably contoured to extend along the cheeks and over the patient's ear just anterior of the patient's temple and retain the respective rear strap 298 in spaced relation over the patient's ear, e.g., to avoid the strap rubbing or irritating the patient's ear in use.

Also, each arm 226 is structured to extend along and engage an upper strap 292 of the headgear in use. As illustrated, each arm 226 is secured to the upper strap 292 to add rigidity to the strap and stabilize the mask system on the patient's face in use. In addition, the strap 292 provides padding to the arm 226 on the patient's face in use. In an embodiment, the upper strap 292 may be fixed to the arm 226 by gluing or stitching for example. Alternatively, the arms 226 may be encapsulated by or inserted into respective straps 292 so that the arms 226 are substantially not visible.

Each lower headgear connector 225 includes an abbreviated arm 228 with a slot 229 at the free end of the arm 229 adapted to receive a respective lower strap 294 in use. As illustrated, the arm 228 is suitably oriented to retain the respective lower strap 294 in spaced relation under the patient's ear, e.g., to avoid the strap rubbing or irritating the patient's ear in use.

In an embodiment, each arm may be attached to the upper end of the mask system and curves below the patient's field of vision or eyes and curves upwards at an angle between about 10 to 20 degrees away from the horizontal axis.

In an alternative embodiment, as shown in FIG. 36, each lower headgear connector 225 may include a clip receptacle 231 adapted to be removably interlocked with a headgear clip (not shown) associated with a respective lower strap 294. In an embodiment, the headgear clip receptacle and clip may be similar to that on ResMed's Mirage Liberty™ mask. Exemplary clip arrangements are disclosed in U.S. Patent Publication Nos. 2007/0144525 and 2006/0283461, each of which is incorporated herein by reference in its entirety.

2.2.8 Shroud without Upper Headgear Connector

FIGS. 37-1 to 37-3 illustrate a mask system 310 according to another embodiment of the present invention. As illustrated, the mask system 310 includes a shroud 320, a frame 340, a cushion 344, and an elbow 370.

As best shown in FIGS. 38-1 to 38-5, the shroud 320 includes an opening 322 structured to receive the elbow 370 and a headgear connector 325 on each side thereof. In the illustrated embodiment, each headgear connector 325 includes a clip receptacle 331 adapted to be removably interlocked with a headgear clip (not shown) associated with a respective lower headgear strap.

The frame 340 is removably attached to the shroud 320, e.g., fingers and tabs 345 extending from opening 322 adapted to engage collar of frame 340.

The frame 340 includes an upper headgear connector 324 on each upper side thereof. Each headgear connector 324 includes a clip retainer 333 adapted to be removably interlocked with a headgear clip (not shown) associated with a respective upper headgear strap.

FIGS. 39-1 to 39-6 illustrate an alternative version of the mask system 310, which is indicated with similar reference numerals. As illustrated, the frame 340 is provided without upper headgear connectors, and the each clip receptacle 331 includes an alternative configuration (e.g., holes for snap-fit tabs on the clip). Also, the shroud 320 in FIGS. 39-1 to 39-6 includes support bars 329 structured to wrap around respective auxiliary ports 343, while the shroud 320 in FIGS. 37-1 to 38-5 includes support bars 329 that extend in front of respective auxiliary ports 343.

2.3 Headgear

Headgear may be removably attached to the headgear connectors 1024, 1025 of the shroud 1020 to maintain the mask system 1010 in a desired position on the patient's face, e.g., see FIG. 1B.

As shown in FIG. 9, the headgear 1090 includes a pair of upper and lower straps 1092, 1094 with the upper straps 1092 removably attached to respective upper headgear connectors 1024 and the lower straps 1094 removably attached to respective lower headgear connectors 1025. The free end of each strap may include a Velcro® tab structured to engage the remainder of the strap to secure the strap in place. Such Velcro® attachment also allows adjustment of the length of the straps. However, the upper and lower headgear straps may be secured to the shroud in any other suitable manners, e.g., adjustable ladder-lock arrangement, etc.

The upper straps 1092 split at the crown of the patient's head to top straps 1096 (e.g., connected to one another by a buckle) adapted to pass over the top of the patient's head in use and rear straps 1098 adapted to pass behind the patient's head in use. In an embodiment, the headgear 1090 is structured to be self-supporting.

In FIG. 9, the top straps 1096 are adapted to be connected to one another by a buckle. In an alternative embodiment, as shown in FIG. 27-30, headgear 90 may include upper and lower straps 92, 94, top strap 96, and rear strap 98, with the top straps 96 integral with one another.

The upper straps 1092 are designed to adjust the position of the mask in a similar way that an adjustable forehead support would alter the position of the mask system, i.e., move the top of the mask system closer or further away from the patient's nasal bridge.

Without the forehead support, the headgear is connected at the top and bottom of the mask frame 1040 via the shroud 1020, and in order to avoid the eyes and ears, the arm 1026 of the upper headgear connector extends at an angle. In doing so, the headgear vectors V1 and V2 (see FIGS. 1 and 1B) are aligned such that the mask system may have a tendency to ride up the patient's face (i.e., upper headgear connectors position upper headgear vectors upwardly from horizontal and lower headgear connectors position lower headgear vectors generally horizontal). By splitting the upper headgear strap 1092 at the crown of the patient's head (i.e., top and rear straps 1096, 1098), the upper headgear vectors are realigned to prevent the mask system from sliding up the patient's face.

2.3.1 Headgear Adjustment

FIGS. 35-1 to 35-3 illustrate headgear 290 attached to the headgear connectors 224, 225 of the shroud 220 to maintain the mask system in a desired position on the patient's face.

In the illustrated embodiment, the headgear 290 includes a pair of upper or top straps 292, a pair of lower or bottom straps 294, and a pair of rear straps 298. In use, the upper straps 292 are secured to respective upper connectors or arms 226, the lower straps 294 are removably attached to respective lower connectors via slots 229/clip arrangement 231, and the rear straps 298 are removably attached to respective upper connectors via slots 227. The upper straps 292 may include upper strap portions adapted to pass over the top of the patient's head and couple to one another, e.g., via a headgear buckle or adjustable ladder-lock arrangement 299. In the illustrated embodiment, the lower straps 294 and rear straps 298 are formed in one piece.

This headgear arrangement allows adjustment to occur at three positions, i.e., upper straps 292 at the headgear buckle 299, lower straps 294 at the slot 229/clip 231 connection, and rear straps 298 at the slot 227 connection.

As illustrated, the free end of each strap may include a hook and loop tab 295 (e.g., Velcro®) structured to engage the remainder of the strap to removably secure the strap in place. Such hook and loop attachment also facilitates adjustment of the length of the straps.

In the illustrated embodiment, the lower straps 294 and rear straps 298 are adapted to join and pass behind the patient's head in use (e.g., see FIG. 35-3). As illustrated, the lower straps 294 join at an angle α (e.g., similar to the bottom strap in ResMed's Mirage Liberty mask) to prevent the strap from irritating the patient's neck and/or prevent movement of the strap due to movement of the patient's neck in use.

In an embodiment, the headgear may be similar to that for ResMed's Mirage Liberty mask, however the top straps have been modified and there is an added rigidizer system. The top straps may be similar to ResMed's Swift style headgear, with the rigidizers extending along the sides.

2.3.2 Alternative Headgear Material

FIGS. 43-1 to 43-4 illustrate a mask system 610 including a mask 615 and headgear 690 according to another embodiment of the present invention. In the illustrated embodiment, the headgear 690 includes an arrangement of straps wherein some of the straps are constructed of silicone and some of the straps are constructed of Breath-O-Prene™ material. However, the headgear may be constructed such that the straps are completely constructed of silicone or completely constructed of Breath-O-Prene™.

As illustrated, the lower strap portion 692 of the headgear is constructed of Breath-O-Prene™ and extends along the cheeks and around the back of the patient's head. The upper strap portion 694 of the headgear is constructed of silicone and includes side straps 694(1) that extend along the upper cheek and over the patient's ear, a top strap 694(2) that extends over the top of the patient's head, rear straps 694(3) that extend behind the patient's head and connects to the lower strap portion 692 (see FIG. 43-4), and connecting portions 694(4) that extend from respective side straps 694(1) in front of the patient's ear and connect to the lower strap portion 692.

The headgear straps may be connected to the mask in any suitable manner. For example, in the illustrated embodiment, the lower strap portion 692 is connected to the mask by a headgear clip arrangement and the upper strap portion 694 is connected to the mask using an elongated buckle 695 with buckle portions on each end thereof.

In an embodiment, the headgear straps are arranged such that the force vectors applied by the headgear to the mask are substantially perpendicular to the mask and substantially parallel to one another (e.g., as shown by the arrows in FIG. 43-2). This arrangement enhances the mask seal as the headgear forces the mask directly into the patient's face.

3. Seal

The seal (i.e., cushion) of the mask system is structured to accommodate the elimination of a forehead support from a full-face type interface.

3.1 Cushion

As shown in FIGS. 1-5 and 7-8, the cushion 1060 is structured to interface with the frame 1040 and form a seal with the patient's nose and mouth in use. In the illustrated embodiment, the cushion is a full-face cushion adapted to engage the patient's face generally along nasal bridge, cheek, and lower lip/chin regions of the patient's face. However, other cushion interfaces are possible, e.g., nasal.

The cushion 1060 is structured be more compliant or flexible (e.g., particularly in the nasal bridge region) to accommodate more movement due to loss of some stability without a forehead support.

The cushion 1060 is constructed of a soft and flexible biocompatible material, e.g., such as silicone. In the illustrated embodiment, the cushion 1060 includes a dual wall configuration wherein the cushion comprises an undercushion or support wall 1062 underneath a membrane 1064 as shown in FIG. 8.

The membrane 1064 is generally softer and less stiff than the undercushion 1062 and provides a seal against the patient's face in use. The membrane may be relatively thin to allow for wider fit range and better conformance to the patient's face in view of less mask stability with a forehead support. The undercushion is structured to generally support the membrane and prevents collapse of the membrane when the mask system is attached and tightened using the headgear.

The membrane 1064 is generally concave and curves inwards towards the breathing chamber. The undercushion 1062 may also curve inwardly but is generally shorter, thicker, and more rigid than the membrane.

In an embodiment, the undercushion 1062 at the regions of the nasal bridge and/or chin of the patient is shorter in height or completely absent and the height from the tip to base of the undercushion 1062 may be between about 0 mm and 30 mm. The membrane is generally longer than the undercushion 1062 at any given cross-section and may be between about 1 mm and 40 mm. For example, FIG. 8B illustrates a cross-section through nasal bridge and chin regions of the cushion to illustrate the membrane 1064 without an undercushion in these regions.

In an embodiment, the undercushion 1062 may only be provided in selected regions of the mask system, e.g., where the mask system is to be pushed away from the patient's face. Certain pre-determined regions of the patient's face may be preferably avoided for applying pressure by the tightening of the headgear. In the illustrated embodiment, the nasal bridge and chin regions of the patient do not include an undercushion 1062. In these regions, the undercushion is only provided along lateral sides of the cushion (e.g., see FIG. 7) which press against the cheeks of a patient so as to more evenly distribute the force vectors applied by the mask system in use. In an embodiment, the undercushion may be relatively stiff along the cheek regions because these points of contact are acting as anchor points, i.e., holds mask system in position to provide effective seal.

This configuration of avoiding the nasal bridge and chin of the patient may increase the comfort of the mask system for patients by reducing the pressure or force applied to sensitive areas or to protruding regions of the patient's face that experience relatively higher contact pressures. Additionally, this arrangement avoids the cushion pinching the nasal bridge of the patient when the mask system is adjusted. Additionally, the cushion of this embodiment may be noticeably softer in the regions of the nasal bridge and chin because of the absence of the undercushion.

In an embodiment, the undercushion may include a variable height, stiffness, and/or thickness to generate a variable softness in the aforementioned predetermined regions of the face that require lighter support.

In the illustrated embodiment, the cushion may be structured to seal lower down on the patient's nasal bridge and the eye sockets so that the cushion is less obtrusive.

In an embodiment, the cushion may be generally frosted except at patient contacting surfaces where it is polished. In an embodiment, the frosting of the cushion may reduce restriction between the face and membrane and/or the membrane and undercushion. The frosting allows the surface of the membrane and undercushion to slide against each other's respective surface without the same restriction of unfrosted silicone. This feature may also prevent or limit sticking of the membrane to the undercushion components and also may generally improve the overall comfort and sealing properties of the cushion. Additionally, the frosting of the cushion may be easier to manufacture and may lead to a reduction of costs of manufacturing. The cushion may be constructed of frosted silicone or other suitable materials.

3.2 Cushion Lower on Nasal Bridge

FIGS. 31-1 to 31-5 illustrate various views of a cushion 44 (e.g., constructed of silicone) according to an embodiment of the present invention. As illustrated, the cushion 44 includes a base wall 44(1) provided to the frame, an undercushion layer (UCL) 44(2) extending away from the base wall 44(1), and a membrane 44(3) provided to substantially cover the UCL 44(2) and provide a sealing structure. In the illustrated embodiment, the cushion 44 is structured to sit lower on the nasal bridge to reduce mask obtrusiveness and improve “line of sight” in use.

Also, as best shown in FIGS. 31-3 and 31-5, the UCL 44(2) design in the nasal bridge region is structured to provide improved stability across the nasal bridge in use. As shown in FIGS. 31-1 and 31-3, the UCL is not provided in the lower lip/chin region. However, other arrangements of the UCL are possible, e.g., UCL around entire perimeter.

In an embodiment of the cushion shown in FIGS. 31-1 to 31-5, D1 may be about 15-20 mm, e.g., 18.2 mm, D2 may be about 53-59 mm, e.g., 55.8 mm, D3 may be about 88-93 mm, e.g., 90 mm, D4 may be about 78-83 mm, e.g., 81.1, D5 may be about 58-63 mm, e.g., 60 mm, D6 may be about 95-100 mm, e.g., 98.1 mm, D7 may be about 57-62 mm, e.g., 59.7 mm, D8 may be about 77-82 mm, e.g., 79 mm, D9 may be about 88-93 mm, e.g., 90.7 mm, D10 may be about 30-35 mm, e.g., 33.1 mm, D11 may be about 14-19 mm, e.g., 16.4 mm, D12 may be about 8-13 mm, e.g., 9.6 mm, D13 may be about 0.3-0.5 mm, e.g., 0.35 mm, D14 may be about 0.4-0.6 mm, e.g., 0.5 mm, and D15 may be about 0.3-0.5 mm, e.g., 0.4 mm. Although specific dimensions and ranges are indicated, it is to be understood that these dimensions and ranges are merely exemplary and other dimensions and ranges are possible depending on application. For example, the exemplary dimensions may vary by 10-20% or more or less depending on application.

3.3 Cushion Higher on Nasal Bridge

FIGS. 35-1 and 35-2 illustrate a full-face cushion 244 adapted to engage the patient's face generally along nasal bridge, cheek, and lower lip/chin regions of the patient's face. In this embodiment, the cushion 244 is structured such that it is positioned higher on the bridge of the nose for sealing and comfort (e.g., with respect to the cushion 44 described above). The cushion 244 may also be better for anthropometrics, i.e., the cushion will fit more people.

In an embodiment, the cushion 244 may include a concertina section as described below (e.g., in the nasal bridge region) to enhance the flexibility of the cushion in use.

3.4 Concertina Section

As best shown in FIGS. 30 and 33, a concertina section 50 may be provided in a nasal bridge region of the cushion and/or frame. As illustrated, the concertina section 50 includes a bellows structure with one or more folds 52 that provide a higher degree of flexibility or increased movement. That is, the concertina section 50 provides a higher level of adaptability or flexibility to the nasal bridge region of the cushion/frame which is a more sensitive region of the patient's face in use. Moreover, the concertina section 50 provides increased movement without compromising seal.

FIGS. 32-1 to 32-3 illustrate various views of a concertina section 50 (isolated from the remainder of the cushion/frame) with one or more folds 52 according to an embodiment of the present invention. As best shown in FIG. 32-3, the folds may have different lengths, depths, and/or contours with respect to one another to optimize the concertina effect, e.g., provide sufficient degree of movement without compromising seal. For example, as shown in FIG. 32-3, each fold 52 includes a first side wall 52(1) and a second side wall 52(2) that interconnects adjacent side walls 52(1).

In the illustrated embodiment, the first side walls 52(1) and/or the second side walls 52(2) may become progressively longer away from the patient's face. For example, the first side wall 52(1) and/or the second side wall 52(2) adjacent patient's face, or the combination of side walls 52(1) and 52(2), may have a length that is longer than and in some cases significantly longer than the adjacent side wall 52(1) and/or 52(2) (e.g., one side wall at least 25% greater than and up to 5× as long as the other side wall, e.g., 1×, 2×, 3×, or 4×).

The folds may be constructed and arranged to provide a predetermined order of movement or folding, e.g., folds structured to fold in a sequential or progressive manner wherein one fold collapses before an adjacent fold collapses. For example, upon application of force, the folds closest to the patient's face may fold or collapse before the folds furthest from the patient's face. Also, the folds may be constructed and arranged to provide various degrees of fold or collapse, e.g., folds may fold or collapse more than others.

In an embodiment of the concertina section shown in FIGS. 32-1 to 32-3, D1 may be about 50-60 mm, e.g., 55.7 mm, D2 may be about 5-15 mm, e.g., 9.7 mm, and D3 may be about 0.3-0.5 mm, e.g., 0.4 mm. Although specific dimensions and ranges are indicated, it is to be understood that these dimensions and ranges are merely exemplary and other dimensions and ranges are possible depending on application. For example, the exemplary dimensions may vary by 10-20% or more or less depending on application.

It should be appreciated that a concertina section 50 may be provided in other regions of the cushion and/or frame, e.g., depending on patient comfort. For example, the concertina section 50 may be provided around the entire perimeter of the cushion and/or frame or may be provided in selected regions of the cushion and/or frame.

Also, the flexibility of the concertina section 50 may be varied and may be varied in different regions of the cushion and/or frame, e.g., depending on patient comfort. For example, the cushion and/or frame may include a concertina section in the nasal bridge region with a relatively high degree of flexibility and a concertina section in the lower lip/chin region with a relatively low degree of flexibility. The flexibility of the concertina section 50 may be varied by varying the number of folds 52 (e.g., 1-5 folds), the wall lengths, the wall thickness of the folds 52, the depth of the folds 52, etc.

As noted above, the cushion and frame may be co-molded of two parts with different materials/rigidities or may be integrally formed of the same material. In both embodiments, the concertina section may be provided in the frame and/or the cushion.

In FIGS. 27-30, the cushion 44 and frame 40 are co-molded of two parts with the concertina section 50 provided in the frame 40. The frame 40 and cushion 44 include different rigidities in order to optimize the function of each part. For example, one part (i.e., cushion 44) may be constructed of a relatively soft, supple material to optimize the sealing effect and the other part (i.e., frame 40) may be constructed of a more rigid material to provide adequate support for the cushion while at the same time allowing a sufficient degree of movement to optimize the concertina effect. While the frame is more rigid than the cushion, the frame may be constructed of a flexible material to allow the concertina effect.

In FIG. 33, the frame 40 and cushion 44 are integrally formed in one piece with the concertina section 50 provided in the frame 40. The material properties and/or dimensions may be selectively modified to optimize sealing and concertina effects.

For both embodiments of FIGS. 27-30 and 33, it should be appreciated that the concertina section may be alternatively provided in the cushion 44 or in both the frame 40 and cushion 44. For example, FIG. 34 illustrates a concertina section 50 integrally formed with the cushion 44 in the nasal bridge region.

4. Elbow

As shown in FIG. 3, the elbow 1070 (e.g., constructed of a relatively hard material such as polycarbonate or polypropylene) includes a first end portion 1074(1) and a second end portion 1074(2). The first end portion 1074(1) provides an interfacing structure structured to interface or otherwise attach to the frame 1040. The second end portion 1074(2) is adapted to be connected to an air delivery tube.

4.1 Elbow Connection to Frame/Shroud

As shown in FIGS. 27-30, the shroud module 20 is structured to maintain the elbow module 70 in an operative position with respect to the patient's face. That is, the shroud module 20 acts as a carrier and bearing surface for the elbow module 70. The shroud module 20 and elbow module 70 may connect with a friction fit, snap-fit, mechanical interlock, or other suitable attachment mechanism. However, other suitable arrangements for attaching the elbow module to the frame module are possible.

In FIGS. 27-30, the elbow module 70 may be rotatably attached to the shroud module 20 so that the elbow module 70 may be rotated relative to the shroud module 20 in use, e.g., 360° rotation.

The frame 1040 (FIG. 3) is structured to maintain the elbow 1070 in an operative position with respect to the patient's face. That is, the frame acts as a carrier and bearing surface for the elbow. The frame and elbow may connect with a friction fit, snap-fit, mechanical interlock, or other suitable attachment mechanism. However, other suitable arrangements for attaching the elbow to the frame are possible.

In the illustrated embodiment, the elbow 1070 includes a series of tangs 1075 adapted to releasably engage within the opening 1046 of the frame 1040, e.g., with a snap-fit. The tangs 1075 hold the elbow in place (e.g., preferably a relatively airtight connection) and permit rotation or swiveling of the elbow with respect to the frame.

That is, the elbow is rotatably attached to the frame so that the elbow may be rotated relative to the frame in use, e.g., 360° rotation. This arrangement allows the elbow to assume different orientations in use, e.g., depending on patient preference. For example, the elbow may assume a first orientation so that the elbow extends generally downwardly from the mask to direct the air delivery tube under the patient's head in use. Alternatively, the elbow may be rotated and assume a second orientation so that the elbow extends upwardly from the mask to direct the air delivery tube over the patient's head in use. In an embodiment, the frame and elbow may be constructed of dissimilar materials to prevent or at least reduce squeak between the components in use.

The second end portion of the elbow may be provided to a swivel joint adapted to be connected to the air delivery tube. For example, FIGS. 27-30 illustrate a swivel joint 80 provided to the second end portion 74(2) of elbow 70. In the illustrated embodiment, the swivel joint 80 is provided to a short tube 82 (e.g., extendable and retractable tube) that interconnects the elbow with the air delivery tube. In an embodiment, the swivel joint 80 may be integrally formed in one piece with the short tube 82.

4.2 AAV

The elbow 1070 includes a slot 1081 to receive an anti-asphyxia valve (AAV), a port 1079 that is selectively closed by a flap portion of the AAV (depending on the presence of pressurized gas), and structure for attaching the AAV, e.g., with a snap-fit.

FIGS. 27-30 illustrate an exemplary AAV 85 including a flap portion 86 to selectively close port 79 in elbow 70. In this embodiment, a clip portion 88 is provided to the flap portion 86 for attaching the AAV 85 to the elbow 70. In the illustrated embodiment, the flap portion 86 and the clip portion 88 are co-molded with one another to form a one-piece, integrated component. However, the flap portion 86 and clip portion 88 may be secured to one another in other suitable manners, e.g., mechanical interlock.

In an embodiment, the flap portion 86 may be constructed of a relatively soft elastomeric material (e.g., silicone) and the clip portion 88 may be constructed of a more rigid material (e.g., rigid plastic) for interfacing with the elbow 70.

The clip portion 88 of the AAV 85 includes structure for removably interlocking with the elbow 70, e.g., with a snap-fit. For example, the clip portion 88 may include tabs structured to interlock with respective recesses/protrusions provided to the elbow.

FIGS. 35-1 and 35-2 illustrate an elbow 270 including a port 279 that is selectively closed by a flap portion 286 of the AAV 285 (depending on the presence of pressurized gas). Also, FIGS. 37-1 to 37-3 illustrate elbow 370 including a port 379 and a slot 381 to retain the AAV.

Alternative embodiments of the AAV are disclosed in PCT Application No. PCT/AU2006/000031, which is incorporated herein by reference in its entirety.

4.3 Large Diameter End Portion

As shown in FIGS. 27-30, the first end portion 74(1) of the elbow 70 may provide a relatively large diameter which allows the potential for cleaner/smoother lines thereby contributing to the overall mask aesthetic and reduced obtrusiveness. In addition, the relatively large diameter elbow offers the potential for the patient's nose to protrude into the elbow cavity thereby permitting the mask to be brought closer to the patient's face (i.e., reduced obtrusiveness), less moment since center of gravity of mask is closer to the patient's face, and/or improved line of sight.

5. Modular Design

The mask system provides a modular design that allows different styles and/or sizes of the frame (also referred to as a frame module), shroud (also referred to as a shroud module), cushion (also referred to as a cushion module), and/or elbow (also referred to as an elbow module) to be interchanged or mixed and matched with one another to provide a more customized mask system for the patient. In addition, such design allows selected modules to be easily replaced, e.g., treatment requirements change, worn out or damaged, etc.

In an embodiment, the mask system may be provided with a number of different cushions, e.g., each having cushions of different styles and/or sizes (e.g., depending on patient preference and/or fit). For example, the non-face contacting side of each cushion may include a common or universal configuration for interfacing with the frame, and the face-contacting side of the cushion may include different styles and/or sizes. This provides a modular arrangement that allows the frame to be selectively (e.g., and removably) coupled to one of multiple cushion. For example, the different cushions may include different size cushions (e.g., small, medium, and large) and may include a different cushion structures.

In an embodiment, the mask system may be provided with different shrouds, e.g., each shroud having a different style and/or size (e.g., shroud with different arrangement/style of headgear connectors, shroud with forehead support, different headgear vectors, etc).

In an embodiment, the mask system may be provided with different frames, e.g., each frame having a different style and/or size (e.g., frame with different vent arrangement, small, medium, and large size frame, etc).

In an embodiment, the mask system may be provided with a number of different elbows, e.g., each having a vent arrangement, AAV (in the case of an oro-nasal mask), and/or elbow of different styles and/or sizes. In the illustrated embodiment of FIGS. 27-30, the vent arrangement 76 and AAV 85 are structured to be removably attachable to the elbow 70. This provides a modular arrangement that allows the elbow to be selectively and removably coupled to one of multiple vent arrangements and/or AAVs. This also allows the vent arrangement and AAV to be easily replaced, e.g., if damaged.

5.1 Shroud to Frame Connection

The shroud is mounted on the outer surface of the frame, e.g., preferably with a tight, conforming fit on the frame.

5.1.1 Upper Retaining Mechanism

In the illustrated embodiment of FIGS. 1-5, the shroud 1020 is connected to the frame 1040 by an upper retaining mechanism or interfacing structure 1048 located on the top end of the frame and shroud.

As shown in FIGS. 2 to 5, the upper retaining mechanism 1048 is in the form of two taper locks structured to secure the shroud 1020 on the frame 1040 and prevent unintentional disassembly particularly due to headgear forces. In this embodiment, opposing sides of the frame include a female slot 1055 adapted to receive a respective tang protrusion (which tapers along its length) on the underside of the shroud 1020. The tapered protrusion engages within a respective female slot, e.g., with a friction fit.

FIGS. 10 to 19-4 show another embodiment of a mask system 1110 which more clearly illustrates an embodiment of the taper lock. FIGS. 10 to 17 show various views of the frame 1140, shroud 1120, and elbow 1170 of the mask system 1110.

As best shown in FIGS. 11 to 13, opposing sides of the top end of the frame 1140 include a platform 1154 which provides a first female slot 1155(1). In addition, the space between the platform 1154 and the outer surface of the frame 1140 defines a second female slot 1155(2). As best shown in FIG. 17, opposing sides of the top end of the shroud 1120 include a tang protrusion 1156 on the underside of the shroud 1120. The tang protrusion 1156 includes a first tang 1156(1) and a second tang 1156(2) that extends generally transverse to the first tang 1156(1). As shown in FIGS. 18-1 and 18-2, each tang may taper along its length, i.e., thinner towards its free end.

FIGS. 18-1 and 18-2 and 19-1 to 19-4 sequentially illustrate attachment of the shroud 1120 to the frame 1140. As illustrated, the tangs 1156(1), 1156(2) of each tang protrusion 1156 are structured to engage with respective slots 1155(1), 1155(2), e.g., with a friction fit. As best shown in FIGS. 19-1 to 19-4, each slot 1155(2) includes lead-ins or guides 1157 that curve along their length (i.e., extend in vertical and horizontal direction) so as to guide the tang 1156(2) into the slot 1155(2) and aid assembly. FIGS. 18-2 and 19-4 show the tangs 1156(1), 1156(2) when fully inserted with respective slots 1155(1), 1155(2).

In an alternative embodiment, as shown in FIG. 20, the upper retaining mechanism may include a clip-type arrangement. As illustrated, opposing sides of the top end of the frame 1240 provide a shoulder 1255(1) and a tapered protrusion 1255(2). Opposing sides of the top end of the shroud 1220 include a first tang 1256(1) and a second tang 1256(2) on the underside of the shroud 1220. In use, each first tang 1256(1) is engaged with the respective shoulder 1255(1) and the second tang 1256(2) is engaged or clipped onto the tapered protrusion 1255(2), e.g., with a snap-fit.

5.1.2 Lower Retaining Mechanism

In an embodiment, the shroud may also be connected to the frame by a lower retaining mechanism located on the bottom end of the frame and shroud. For example, a retaining mechanism may be provided to the opening of the shroud which is structured to interlock or otherwise engage with the opening of the frame.

For example, as shown in FIGS. 14, 15, 17, and 21, the opening 1132 of the shroud 1120 may include structure adapted to engage the collar 1149 surrounding the frame opening 1146 with a snap-fit. As illustrated, the shroud 1120 includes snap fingers 1145(1) (e.g., three snap fingers) and sandwich tabs 1145(2) (e.g., three sandwich tabs) that extend from the opening 1132. The snap fingers and sandwich tabs are alternatively spaced about the opening.

In use, the snap fingers 1145(1) resiliently deflect (e.g., 0.5 mm deflection) and engage respective part-annular protrusions 1149(1) provided to the collar 1149 (e.g., see FIGS. 22 and 23) to provide an initial retention of the shroud 1120 to the frame 1140 (e.g., with allowable stresses), e.g., to facilitate assembly and disassembly. In addition, as the snap fingers 1145(1) engage respective protrusions 1149(1), the sandwich tabs 1145(2) are received in respective recesses 1149(2) provided to the end of the collar 1149 (e.g., see FIGS. 22 and 23). When the elbow 1170 is engaged with the frame 1140 (e.g., see FIG. 23), an annular protrusion 1171 on the elbow 1170 is positioned on an opposing side of the sandwich tabs 1145(2) so that the sandwich tabs 1145(2) are sandwiched between the collar 1149 and the elbow 1170. Thus, the sandwich tabs utilize elbow retention forces to retain the shroud on the frame during use. The elbow 1170 has a distal shoulder 1173 adapted to extend under the edge of the frame 1140 to retain the elbow to the frame. The snap fingers 1145(1) allow the shroud to connect to the frame independent of the elbow.

In an alternative embodiment, as shown in FIG. 24, the shroud's lower section may be structured to clip to a single point below the collar. As illustrated, the lower end of the shroud 1320 includes a snap finger 1345 that is engaged or clipped onto a protrusion 1349(1) spaced below the collar 1349 of the frame 1340, e.g., with a snap-fit. In this embodiment, the protrusion 1349 extends from the cover enclosing auxiliary ports. This arrangement may facilitate molding of the collar on the frame, e.g., uniform thickness of the collar prevents molding distortions. In addition, removal of the protrusions 1149(1)/recesses 1449(2) from the collar may reduce the risk of leak.

5.1.3 Finger Grip

In an embodiment, the outer surface of the frame 1040 may include finger grips or recessed portions 1097, which are positioned to be exposed under the shroud 1020. The finger grips are adapted to allow the patient an improved ability to grip the frame and/or shroud which is particularly useful when disengaging the shroud from the frame.

5.1.4 Alternative Interfacing Structure

In an alternative embodiment, as shown in FIG. 27-30, the shroud 20 includes an open construction that provides an annular or part annular retaining portion 22 structured to retain the frame 40 and the elbow 70. As illustrated, the annular retaining portion 22 includes an interfacing structure 23 along an inner edge that is adapted to interface with or otherwise removably connect to an interfacing structure 48 along the outer perimeter of the frame 40 (e.g., see FIG. 28). In the illustrated embodiment, the interfacing structure 23 is in the form of opposed flanges 23(1) that are adapted to interlock with respective locking structures 48(1) provided on opposing sides of the frame 40. However, other suitable arrangements for attaching the frame 40 to the shroud 20 are possible, e.g., friction fit, snap-fit, mechanical interlock, or other suitable attachment mechanism.

For example, the frame 40 may be coupled to the shroud 20 in a manner that allows the frame 40 to be locked in different angular positions with respect to the shroud 20, e.g., pivotally mounted.

5.1.5 Alternative Upper Headgear Connector

FIGS. 40-1 to 40-7 illustrate a frame and a clip-on upper headgear connector or rigidizer according to another embodiment of the present invention.

The frame 442 includes an opening 449 adapted to engage a frame shroud and/or elbow. Around and under the opening 449 is the u-shaped slot 402 for gas washout and auxiliary ports 443 on each side thereof.

In this embodiment, each upper side of the frame 442 includes a retaining member 433 and an upper intermediate portion of the frame 442 includes retaining grooves 435, which are structured and arranged to retain an upper headgear connector or rigidizer 424.

As best shown in FIGS. 40-6 and 40-7, the upper headgear connector 424 includes a pair of elongated arms or rigidizers 426 coupled by a pair of wire members 428. Each rigidizer 426 includes a slot 427 at its free end adapted to receive a respective headgear strap in use.

In use, the upper headgear connector 424 is adapted to clip onto the frame 442 (e.g., see FIGS. 40-1 and 40-2). Specifically, intermediate portions of the wire members 428 are received in respective grooves 435 of the frame 442, and end portions of the wire members 428 extend through respective retaining members 433 with the rigidizers 426 providing a shoulder to interlock with respective retaining members 433. FIGS. 40-4 and 40-5 show an upper portion of a retaining member 433 to illustrate the groove 433(1) adapted to receive a respective wire. As illustrated, the end of the groove 433(1) includes tapered side walls 433(2) and drops off towards a rear side 433(3) to position the rigidizers 426 into interlocking engagement with the retaining member 433.

FIGS. 41-1 to 41-12 illustrate an upper portion of a frame and a clip-on upper headgear connector or rigidizer according to another embodiment of the present invention.

As illustrated, the upper portion of the frame 542 includes a retaining member 533 on each side thereof and a retaining groove 535 along an intermediate portion thereof, which are structured and arranged to retain an upper headgear connector or rigidizer 524.

As best shown in FIGS. 41-5 and 41-12, the upper headgear connector 524 includes a pair of elongated arms or rigidizers 526 coupled by a connecting portion 528. Each rigidizer 526 includes a slot 527 at its free end adapted to receive a respective headgear strap in use. In addition, the upper headgear connector 524 includes a clip structure 525 on each side of the connecting portion 528.

In use, the upper headgear connector 524 is adapted to clip onto the frame 542 (e.g., see FIGS. 41-1 and 41-2). Specifically, the connecting portion 528 is received in the groove 535 of the frame 542, and the clip structures 525 releasably interlock with respective retaining members 533. As best shown in FIGS. 41-3 and 41-4, each retaining member 533 provides a cross-bar, and each clip structure 525 provides a v-shaped configuration that is adapted to resiliently deflect through the cross-bar and provide a shoulder to releasably interlock with the cross-bar.

FIGS. 42-1 to 42-7 illustrate an alternative embodiment for engaging the upper headgear connector with the frame. As illustrated, each retaining member 533 provides an open-ended cross-bar, and each clip structure 525 provides an elongated arm. In this embodiment, the cross-bar is structured to resiliently deflect to allow the clip structure 525 to extend through the cross-bar and releasably engage the cross-bar, e.g., with a friction fit. In addition, the upper headgear connector 524 of FIGS. 42-1 to 42-7 includes a c-shaped clip structure 529 adapted to interlock with a tab 549 provided to the frame 542 (see FIGS. 42-1 and 42-2).

5.1.6 Grommet Attachment

FIGS. 44 and 45 illustrate an alternative mask arrangement in which the shroud is attached to the frame via a grommet.

For example, as shown in FIG. 44, the frame 740 includes a grommet 745 (e.g., constructed of a rubber) and the shroud 720 includes an opening 725 adapted to receive the grommet 745 to secure the shroud 720 to the frame 740. As illustrated, the shroud 720 includes elongated upper and lower arms 724, 726 each with a slot 727 at its free end adapted to receive a respective headgear strap in use.

FIG. 45 illustrates an alternative shroud 820 which includes a single arm with a slot 827 at each end adapted to receive a respective headgear strap in use. In addition, the shroud 820 provides an elongated inner slot 825 adapted to receive the grommet 745 of the frame 740. The elongated slot 825 allows the grommet 745 to be fixed in one of multiple positions along the length of the slot 825, in contrast to the shroud 720 which provides a single fixed position. In an embodiment, the shroud 820 may be slidable with respect to the grommet 745 to allow an infinite number of positions with respect to the frame 740.

In each embodiment, the grommet 745 (e.g., constructed of a rubber) fixes the shroud in position but the inherent flexibility of the grommet provides a flexible connection to decouple the shroud from the frame and allow a range of movement between the two components, e.g., like a ball joint or gimbal. Such arrangement helps with fitting and sealing of the mask to the patient's face. That is, the flexible connection allows the mask to selectively adjust and/or self-fit with the patient's face.

5.2 Cushion to Frame Connection

In FIGS. 1-8, the non-face contacting side of the cushion 1060 is connected to frame 1040 in a tongue and groove relationship. The tongue 1066 (see FIGS. 1C, 1D, and 8) of the cushion 1060 is inserted within a groove 1041 (see FIGS. 1C and 1D) provided along the perimeter of the frame 1040. The tongue and groove relationship may also include a locking lip or sealing lip 1068 (see FIGS. 1C, 1D, and 8) on the cushion that is adapted to interlock with an undercut bead 1042 (see FIGS. 1C and 1D) within the frame groove to fixably retain the cushion to the frame.

In the illustrated embodiment, the cushion 1060 also includes one or more positioning features located around its circumference to assist with proper alignment of the cushion with the frame 1040. As shown in FIG. 7, the cushion 1060 includes notches and/or protrusions (e.g., two notches 1067 and one protrusion 1069) adapted to engage with complementary features in the frame, e.g., interlocking relationship.

5.2.1 Co-Molding Frame and Cushion

In an embodiment, as shown in FIGS. 27-30, the frame 40 and cushion 44 may be co-molded with one another to form a one-piece, integrated component. For example, the frame 40 may be molded of a first material adapted to interface with the shroud 20 and the cushion 44 may be co-molded onto the frame 40 of a second material adapted to interface with patient's face.

In such embodiment, the cushion 44 may be constructed of a relatively soft elastomeric material (e.g., silicone) for sealing and the frame 40 may be constructed of a more rigid material than the cushion 44 (e.g., polycarbonate, polypropylene) for interfacing with the frame.

Co-molding the frame 40 to the cushion 44 provides a chemical bond without necessarily forming a mechanical interlock. As a result, the connection includes no cracks, a gas tight seal, and clean interface. Moreover, such co-molded connection relaxes tolerances as the mold materials are sufficiently flexible to fill in any gaps at the interface between the frame 40 and the cushion 44. Also, the co-molded frame/cushion provides a reduced part count (reduced cost) and facilitates assembly/disassembly to the shroud 20.

In an alternative embodiment, as shown in FIG. 33, the frame 40 and cushion 44 may be integrally formed in one piece, e.g., of a silicone material. That is, the frame 40 may have the same shape and structure as described above, but be integrally molded of the same material, e.g., silicone.

In an embodiment, the integrally formed frame 40/cushion 44 may be co-molded to the shroud 20, e.g., constructed of polycarbonate or polypropylene. For example, the shroud 20 may be constructed of a relatively rigid material (e.g., polycarbonate or polypropylene) and the frame 40/cushion 44 may be co-molded onto the shroud 20 of a relatively soft elastomeric material (e.g., silicone).

5.3 Vent Arrangement

In FIGS. 1, 1B, 1C, 1D, and 2-5, the vent arrangement 1076 is provided to the frame and includes a plurality of holes 1077 (e.g., 5-100 holes, e.g., 20-50 holes, or about 35 holes) oriented at an angle (e.g., 45°) on the outer surface of the frame so as ensure the exhausted air is directed away from the patient and preferably their bed partner when the patient is sleeping. As shown in FIGS. 1C and 1D, each hole 1077 may include a contour or taper along its length. However, it should be appreciated that the vent arrangement may include other suitable arrangements, e.g., different number of holes, hole arrangement, positioning on frame, vent provides part pf interlocking structure with shroud, etc.

FIG. 35-1 illustrates a vent arrangement 276 provided to the frame 240 for gas washout. In the illustrated embodiment, the vent arrangement 276 is in the form of a vent insert (e.g., elastomeric vent insert) that is adapted to be removably supported within an outlet opening in the frame 240. The vent insert may be similar those described in U.S. Pat. Nos. 6,561,190, 6,561,191, and 7,207,335, each of which is incorporated herein by reference in its entirety. However, it should be appreciated that the vent arrangement may have other suitable forms (e.g., vent holes in frame 40 (FIG. 28), etc.).

FIGS. 37-3, 39-2, and 39-4 illustrate a frame 340 that includes a u-shaped slot 302 that receives a u-shaped plug-type vent 305 for gas washout. As illustrated, the plug-type vent 305 wraps around and under the opening in the frame 340 for the elbow 370. The plug-type vent 305 includes a plurality of tracks or grooves 307 on each side thereof. In use, the grooved plug-type vent 305 forms a seal with the slot 302 so that exhausted air can exit between the slot walls and the grooves 307 on the plug-type vent 305. In an embodiment, the port caps 347 may be integrated or incorporated into the plug-type vent 305 (e.g., integrally formed in one piece). Further details of such a plug-type vent arrangement are provided in U.S. patent application Ser. No. 12/230,120, filed Aug. 22, 2008, which is incorporated herein by reference in its entirety. FIGS. 39-2 to 39-6 show the frame 340 with the grooved plug-type vent 305 removed so as to more clearly illustrate the u-shaped slot 302 and auxiliary ports 343 on each side thereof.

Also, it should be appreciated that the vent arrangement may be provided to the elbow. For example, a shown in FIGS. 27-30, the vent arrangement 76 is in the form of a vent insert that is adapted to be removably supported within an outlet opening in the elbow 70. In an embodiment, the vent arrangement 76 includes a base adapted to be supported within the outlet opening, one or more grill components or media (e.g., filter, membrane, or other porous material) provided to the base and structured to diffuse vent flow, and a cover to maintain the grill components/media within the base. Only the cover 77 of the vent arrangement 76 is visible in FIGS. 27-30.

Exemplary embodiments of such a vent arrangement are disclosed in U.S. patent application Ser. No. 12/230,120, filed Aug. 22, 2008, which is incorporated herein by reference in its entirety.

However, it should be appreciated that the vent arrangement may include other suitable arrangements, e.g., vent insert with one or more vent holes.

Also, the elbow may provide an alternative venting arrangement to the vent insert. For example, as indicated in dashed lines in FIG. 30, the first end portion 74(1) of the elbow 70 (e.g., along the interfacing structure 75) may include one or more vent holes 276 for gas washout. The one or more holes 276 may be provided to a soft part (e.g., silicone seal as described below) and/or a hard part (e.g., polycarbonate, polypropylene) of the elbow. The holes 276 may extend around the entire perimeter of the first end portion 74(1) or may extend along one or more portions of the first end portion 74(1). It is noted that providing vent holes along the entire perimeter of the elbow may help to disperse the vent flow in use. However, other suitable hole arrangements, hole numbers, and/or hole shapes along the first end portion 74(1) and/or other portions of the elbow are possible.

5.4 Ports

In FIGS. 1-5, the base of the frame 1040 includes two ports 1043 positioned so that in use, oxygen or other breathable gas can be delivered close to the patient's nares or pressure monitoring equipment can be attached. The ports 1043 may also be used to attach additional medical equipment such as pressure or flow sensors. The ports may be selectively closable or sealable by a ports cap.

In an alternative embodiment, as shown in FIGS. 25 and 26, the frame 1040 may include a side port 1043.1, e.g., in addition to or as an alternative to the ports 1043.

FIGS. 35-1 and 35-2 show a frame 240 that includes an auxiliary port or spigot 243 on an upper portion of the frame, e.g., for supplemental oxygen, measurement device, etc.

In FIGS. 37-1 to 37-3 and 39-1 to 39-6, the frame 340 includes an auxiliary port or spigot 343 on each side thereof, e.g., for supplemental oxygen, measurement device, etc. Port caps 347 are provided to seal respective ports 343.

6. Interface Seal

In an embodiment, a seal may be provided at the interface between the elbow and the shroud, at the interface between the frame and the shroud, and/or at the interface between the elbow and the frame. For example, a seal (e.g., elastomeric, ring-shaped seal) may be formed separately from the modules and attached at the interface (e.g., sandwiched between modules, adhesive, etc.). Alternatively, a seal may be co-molded with one or more of the modules. In an embodiment, a silicone lip seal may be provided to the frame to seal against the elbow, thereby reducing leak.

In another embodiment, as shown in FIG. 27-30, the interfacing structure 75 of the elbow 70 may be constructed of a relatively soft, sealing material (e.g., silicone, which may be co-molded to the harder material of the elbow) that is structured to provide a seal at the interface between the elbow 70 and the shroud 20. Also, the relatively soft interfacing structure 75 (e.g., silicone) provides a “soft” attachment to the relatively hard shroud 20 (e.g., polycarbonate, polypropylene) which may allow an interference type fit. As noted above, one or more vent holes may be provided to the softer interfacing structure and/or the harder elbow.

While the invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Also, the various embodiments described above may be implemented in conjunction with other embodiments, e.g., aspects of one embodiment may be combined with aspects of another embodiment to realize yet other embodiments. Further, each independent feature or component of any given assembly may constitute an additional embodiment. Furthermore, each individual component of any given assembly, one or more portions of an individual component of any given assembly, and various combinations of components from one or more embodiments may include one or more ornamental design features. In addition, while the invention has particular application to patients who suffer from OSA, it is to be appreciated that patients who suffer from other illnesses (e.g., congestive heart failure, diabetes, morbid obesity, stroke, bariatric surgery, etc.) can derive benefit from the above teachings. Moreover, the above teachings have applicability with patients and non-patients alike in non-medical applications.

Claims

1. A mask system for use with a flow generator in the treatment of sleep disordered breathing to enable a supply of air at positive pressure to be delivered to a patient's airways, the mask system comprising: a shroud module;a cushion module detachable from and re-attachable to the shroud module, the cushion module defining a breathing chamber, the cushion module includes a frame of relatively rigid material and a cushion of relatively softer material provided to the frame, the frame being adapted to fixedly interface with the shroud module, the frame including an opening allowing said air at positive pressure to be delivered from an elbow to the breathing chamber, the elbow adapted to be connected to an air delivery tube to deliver said air at positive pressure to the patient, the cushion being adapted to seal with the patient's face along nasal bridge, cheek and chin regions of the patient's face; anda headgear removably attachable to the shroud module,wherein:the frame is structured to maintain the cushion and shroud module in an operative position with respect to the patient's face, the shroud module including upper headgear connectors and lower headgear connectors to connect with the headgear,the upper headgear connectors include at least two elongated arms configured to extend therefrom in a direction across the patient's cheeks, the at least two elongated arms configured to extend to a position below the patient's eyes so as not to cover the patient's field of vision,the headgear includes at least two upper straps connectable to the upper headgear connectors and at least two lower straps, andthe mask system is provided without a forehead support.
2. The mask system according to claim 1, wherein the frame and cushion are co-molded.
3. The mask system according to claim 1, further comprising a vent arrangement for gas washout.
4. The mask system according to claim 3, wherein the vent arrangement is disposed on the elbow.
5. The mask system according to claim 1, wherein the elbow further comprises an anti-asphyxia valve.
6. The mask system according to claim 1, wherein a portion of the frame remains uncovered by the shroud module when the shroud module and the frame are engaged.
7. The mask system according to claim 1, wherein the elbow is snap-fit to the shroud module.
8. The mask system according to claim 1, wherein the headgear includes a halo portion configured to be disposed on a patient's head.
9. The mask system according to claim 1, wherein the at least two lower straps are connectable to at least two lower connectors disposed on the shroud module.
10. The mask system according to claim 1, wherein the at least two elongated arms are dimensioned to follow contours of the patient's cheeks.
11. The mask system according to claim 10, wherein the at least two elongated arms further comprise cheek pads configured to support the respective arm on the patient's cheek.
12. The mask system according to claim 1, wherein the at least two elongated arms each include a slot.
13. The mask system according to claim 1, wherein the cushion includes a base wall, an undercushion layer, and a membrane.
14. The mask system according to claim 13, wherein the undercushion layer is not provided to a lower lip/chin region.
15. The mask system according to claim 5, wherein the anti-asphyxia valve includes a port selectively closable by a flap portion.
16. The mask system according to claim 1, wherein the elbow includes a first end portion and a second end portion, the second end portion being provided to a swivel joint adapted to be connected to the air delivery tube.
17. The mask system according to claim 1, wherein the frame is adapted to fixedly interface with the shroud module by one of snap-fit, friction-fit, or mechanical interlock.
18. The mask system according to claim 1, wherein each lower headgear connector includes a clip receptacle adapted to be removably interlocked with a headgear clip associated with a respective headgear strap.
19. The mask system according to claim 18, wherein each headgear clip includes two spring arms adapted to interlock with the respective clip receptacle.
20. A mask system for use with a flow generator in the treatment of sleep disordered breathing to enable a supply of air at positive pressure to be delivered to a patient's airways, the mask system comprising: a shroud module including upper headgear connectors and lower headgear connectors, each upper headgear connector including a semi-rigid elongated arm and slot adapted to receive a respective headgear strap;a cushion module adapted to form a seal with a patient's nose and mouth, the cushion module structured to fixedly interface with the shroud module, the cushion module including a frame and a full-face cushion made of a relatively soft elastomeric material provided to the frame, the frame constructed of a more rigid material than the cushion, the frame defines a breathing chamber and is detachable from and re-attachable to the shroud module, the cushion adapted to seal with a patient's nose and mouth and engage the patient's face along a nasal bridge, cheek and lower lip/chin region, the frame includes an opening, the frame and the cushion are co-molded forming a chemical bond;an elbow module rotatably attached to the shroud module and adapted to be connected to an air delivery tube that delivers breathable gas to the patient, the elbow module communicating with the frame via the opening;the elbow module further including an elbow and an anti-asphyxia valve provided to the elbow, the anti-asphyxia valve including a port that is selectively closed by a flap constructed of an elastomeric material, the elbow further including a first end portion with an interfacing portion to attach to the shroud module, and a second end portion provided to a swivel joint adapted to be connected to the air delivery tube, the first end portion further including a vent arrangement in the form of one or more vent holes for gas washout, the elbow module rotatably attached to the shroud module;a headgear removably attached to the shroud module and adapted to maintain the mask system in a desired position on the patient's face, the headgear removably attached to the headgear connectors, the headgear includes a pair of upper straps and a pair of lower straps with the upper straps removably attached to respective ones of the upper headgear connectors and the lower straps removably attached to the lower headgear connectors, the headgear further includes an upper strap adapted to pass over the top of a patient's head and a rear strap adapted to pass behind a patient's head;wherein the shroud module is structured to maintain the cushion module and the elbow module in an operative position with respect to the patient's face, the shroud module further comprises a retaining portion structured to retain the elbow module, the shroud module is structured to hold and secure the cushion module and the elbow module in an operative position with respect to the patient's face by friction fit, snap-fit, or mechanical interlock, the shroud module acts as a carrier and bearing surface for the elbow module;wherein each elongated arm is shaped to follow the contours of a patient's face and avoid line of sight in use and a cheek pad is provided to the inner surface of each elongated arm to support the arm on the patient's cheek in use;wherein each lower headgear connector includes a portion adapted to be removably interlocked with a headgear clip associated with a respective headgear strap;wherein the mask system is modular such that the shroud module is configured to be selectively and removably coupled to cushion modules of varying sizes and structures and/or the cushion module may be provided with shroud modules having different style and/or size;wherein a seal is provided at the interface between the elbow module and the shroud module, and a seal is provided at the interface between the cushion module and the shroud module; andwherein the mask system is provided without a forehead support.
21. A mask system for use with a flow generator in the treatment of sleep disordered breathing to enable a supply of air at positive pressure to be delivered to a patient's airways, the mask system comprising: a shroud module comprising upper headgear connectors and lower headgear connectors, wherein each upper headgear connector includes an elongated arm and a slot in a free end of the arm, wherein each elongated arm is semi-rigid and is contoured to follow the contours of a patient's face and avoid line of sight use, wherein a cheek pad is provided to an inner surface of the arm;a cushion module detachable from and re-attachable to the shroud module and adapted to form a seal with a patient's face, the cushion module structured to fixedly interface with the shroud module and form a seal with a patient's nose and mouth in use, the cushion module includes a frame and a cushion provided to the frame, the cushion is constructed of a relatively soft elastomeric material and the frame is constructed of a material more rigid than the cushion, the frame and cushion are co-molded providing a chemical bond, the frame defines a breathing chamber and is adapted to fixedly interface or attach to the shroud module, the cushion provides a sealing portion adapted to form a seal with the patient's nose and/or mouth, the frame includes an opening adapted to communicate with an air delivery tube, wherein the cushion is a full-face cushion adapted to engage the patient's face along nasal bridge, cheek, and lower lip/chin regions of the patient's face, wherein the cushion includes a base wall provided to the frame, an undercushion layer extending away from the base wall, and a membrane provided to substantially cover the undercushion layer and provide a sealing structure, the undercushion layer is structured to provide stability across the nasal bridge in use, the undercushion layer is not provided to the lower lip/chin region;a headgear removably attached to the upper and lower headgear connectors of the shroud module and adapted to maintain the mask system, the headgear including a pair of upper straps and a pair of lower straps removably attached to respective upper headgear connectors and lower headgear connectors, the headgear including an upper strap adapted to pass over the top of a patient's head and a rear strap adapted to pass behind a patient's head;an elbow module including an elbow adapted to be connected to the air delivery tube that delivers breathable gas to the patient, the elbow module including an anti-asphyxia valve, the anti-asphyxia valve including a port selectively closed by a flap portion constructed of a relatively soft elastomeric material, the elbow module including a first end portion and a second end portion, the first end portion providing an interfacing structure, the second end portion provided to a swivel joint adapted to be connected to the air delivery tube,a vent with one or more holes for gas washout,wherein the shroud module is structured to maintain the cushion module and the elbow module in an operative position with respect to the patient's face, the shroud module includes an open construction that provides a part annular retaining portion structured to retain the cushion module, the part annular retaining portion includes an interfacing structure along an inner edge adapted to removably connect to an interfacing structure along an outer perimeter of the frame, wherein the interacting structure is in the form of opposed flanges which are adapted to interlock with respective locking structures on the frame by snap-fit,wherein the mask system is modular such that the shroud module can be selectively coupled to different sized cushions modules and such that the cushion module may be provided to different sized shroud modules,wherein the mask system is provided without a forehead support.
22. A mask system for use with a flow generator in the treatment of sleep disordered breathing to enable a supply of air at positive pressure to be delivered to a patient's airways, the mask system comprising: a shroud module including upper headgear connectors and lower headgear connectors, each upper headgear connector includes a semi-rigid elongated arm and slot adapted to receive a respective headgear strap, wherein each elongated arm is shaped to follow the contours of a patient's face and avoid line of sight in use and a cheek pad is provided to the inner surface of the elongated arm to support the arm on the patient's cheek in use, each lower headgear connector includes a clip receptacle adapted to be removably interlocked with a headgear clip associated with a respective headgear strap, each headgear clip includes two spring arms adapted to interlock with the respective clip receptacle with a snap-fit;a cushion module adapted to form a seal with a patient's nose and mouth, the cushion module including a frame and a cushion provided to the frame, the cushion is constructed of a relatively soft elastomeric material and the frame is constructed of a material more rigid than the cushion, the frame defines a breathing chamber and is detachable from and re-attachable to the shroud module, the frame includes an opening adapted to communicate with an elbow module, the cushion is a full-face cushion adapted to engage a patient's face along nasal bridge, cheek and lower lip/chin regions of the patient's face, wherein the cushion includes a base wall provided to the frame, an undercushion layer extending away from the base wall, and a membrane provided to substantially cover the undercushion layer and provide a sealing structure, the undercushion layer is structured to provide stability across the nasal bridge in use, the undercushion layer is not provided to the lower lip/chin region;the elbow module including an elbow adapted to be connected to an air delivery tube that delivers breathable gas to a patient, the elbow including a first end portion and a second end portion, the second end portion adapted to be connected to an air delivery tube, a seal provided between the elbow module and the cushion module;a headgear removably attached to the upper headgear connectors and the lower headgear connectors of the shroud module and adapted to maintain the mask system, the headgear including a pair of upper straps and a pair of lower straps removably attached to respective upper headgear connectors and lower headgear connectors, the headgear including an upper strap adapted to pass over the top of a patient's head and a rear strap adapted to pass behind a patient's head;wherein the shroud module is structured to fixedly maintain the cushion module and maintain the elbow module in an operative position with respect to the patient's face, the shroud module further comprises an annular retaining portion structured to retain the elbow module, the shroud module is structured to hold and secure the cushion module and the elbow module in an operative position with respect to the patient's face by friction fit, snap-fit, or mechanical interlock, the annular retaining portion includes an interfacing structure along an inner edge adapted to removably connect to an interfacing structure along an outer perimeter of the frame, wherein the interacting structure is in the form of opposed flanges which are adapted to interlock with respective locking structures on the frame by snap-fit;wherein the mask system is modular such that the shroud module can be selectively coupled to different sized cushions modules and such that the cushion module may be provided to different sized shroud modules,wherein the mask system is provided without a forehead support.
23. A patient interface for use with a flow generator in the treatment of sleep disordered breathing to enable a supply of air at positive pressure to be delivered to a patient's upper airways, the patient interface comprising: a shroud module;an elbow;a cushion module detachable from and re-attachable to the shroud module, the cushion module defining a breathing chamber, the cushion module includes a frame and a cushion provided to the frame, the cushion being softer compared to the frame, the frame being adapted to fixedly interface with the shroud module, the frame including a circular opening aligned with the elbow allowing said air at positive pressure to be delivered from the elbow to the breathing chamber, the elbow adapted to be connected to an air delivery tube to deliver said air at positive pressure to the patient, the cushion being adapted to seal with the patient's upper airways;a pair of connections to connect the frame and the shroud module to one another; anda headgear removably attachable to the shroud module,wherein:the frame is structured to maintain the cushion and shroud module in an operative position with respect to the patient's face, the shroud module including headgear connectors to connect with the headgear,the headgear connectors include at least two elongated arms configured to engage at least a portion of the patient's cheeks, the at least two elongated arms configured to be disposed below the patient's eyes so as not to cover the patient's field of vision,the headgear includes at least two straps connectable to the headgear connectors,the mask system is provided without a forehead support; andthe elbow includes a first end portion and a second end portion, the shroud module acting as a carrier and bearing surface for the first end portion of the elbow allowing 360° rotation of the elbow, the second end portion adapted to be connected to the air delivery tube.
24. The patient interface of claim 23, further comprising a vent arrangement for gas washout arranged on the elbow.
25. The patient interface of claim 23, wherein a portion of the frame remains uncovered by the shroud module when the shroud module and frame are engaged, said portion of the frame being exposed to atmosphere.
26. The patient interface of claim 23, wherein the headgear includes a rear portion having upper and lower strap portions that define an opening configured to receive a rear part of the patient's head.
27. The patient interface of claim 23, wherein each of the at least two elongated arms includes a slot to receive a respective one of the at least two straps.
28. The patient interface according to claim 23, wherein each headgear connector includes a clip receptacle portion adapted to be removably attached to a respective headgear strap.
29. The patient interface according to claim 23, wherein the cushion is a nose and mouth cushion.
30. The patient interface according to claim 23, wherein the cushion is a nasal cushion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No. 13/964,280, filed Aug. 12, 2013, which is a continuation of U.S. application Ser. No. 13/745,077, now U.S. Pat. No. 8,528,561, filed on Jan. 18, 2013, which is a continuation of U.S. application Ser. No. 12/736,024, now U.S. Pat. No. 8,550,084, filed on Sep. 2, 2010, which is the U.S. National Stage of PCT/AU2009/000241, filed Feb. 27, 2009, which claims benefit to U.S. Provisional Application No. 61/064,406, filed Mar. 4, 2008, 61/071,893, filed May 23, 2008, and 61/136,617, filed Sep. 19, 2008, each of which is incorporated herein by reference in its entirety.

US Referenced Citations (866)

Number	Name	Date	Kind
364394	Bright	Jun 1887	A
428592	Chapman	May 1890	A
443191	Illing	Dec 1890	A
781516	Guthrie, Jr.	Jan 1905	A
812706	Warbasse	Feb 1906	A
1081745	Johnston et al.	Dec 1913	A
1125542	Humphries	Jan 1915	A
1176886	Ermold	Mar 1916	A
1192186	Greene	Jul 1916	A
1206045	Smith	Nov 1916	A
1229050	Donald	Jun 1917	A
1282527	Bidonde	Oct 1918	A
1362766	McGargill	Dec 1920	A
1445010	Feinberg	Feb 1923	A
1502450	Wood	Jul 1924	A
1610793	Kaufman	Dec 1926	A
1632449	McKesson	Jun 1927	A
1653572	Jackson	Dec 1927	A
1710160	Gibbs	Apr 1929	A
1837591	Shindel	Dec 1931	A
1873160	Sturtevant	Aug 1932	A
1926027	Biggs	Sep 1933	A
2011733	Shindel	Aug 1935	A
2104016	Biggs	Jan 1938	A
2123353	Catt	Jul 1938	A
2127136	Pobirs	Aug 1938	A
2130555	Malcom	Sep 1938	A
2133699	Heidbrink	Oct 1938	A
2149067	Otero	Feb 1939	A
2166164	Lehmberg	Jul 1939	A
2245658	Erickson	Jun 1941	A
2245969	Francisco et al.	Jun 1941	A
2248477	Lombard	Jul 1941	A
2254854	O'Connell	Sep 1941	A
2317608	Heidbrink	Apr 1943	A
2353643	Bulbulian	Jul 1944	A
2371965	Lehmberg	Mar 1945	A
2376871	Fink	May 1945	A
2382364	Yant	Aug 1945	A
2415846	Randall	Feb 1947	A
2428451	Emerson	Oct 1947	A
2433565	Korman	Dec 1947	A
2438058	Kincheloe	Mar 1948	A
2473518	Garrard et al.	Jun 1949	A
D156060	Wade	Nov 1949	S
D161337	Hill	Dec 1950	S
2540567	Bennett	Feb 1951	A
2578621	Yant	Dec 1951	A
2590006	Gordon	Mar 1952	A
2625155	Engelder	Jan 1953	A
2641253	Engelder	Jun 1953	A
2693178	Gilroy	Nov 1954	A
2706983	Matheson et al.	Apr 1955	A
2749910	Faulconer, Jr.	Jun 1956	A
RE24193	Emerson	Aug 1956	E
2820651	Phillips	Jan 1958	A
2827900	Marietta	Mar 1958	A
2837090	Bloom	Jun 1958	A
2868196	Stampe	Jan 1959	A
2875757	Galleher, Jr.	Mar 1959	A
2875759	Galleher, Jr.	Mar 1959	A
2881444	Fresh et al.	Apr 1959	A
2882895	Galeazzi	Apr 1959	A
2902033	Galleher, Jr.	Sep 1959	A
2917045	Schildknecht et al.	Dec 1959	A
2931356	Schwarz	Apr 1960	A
D188084	Garelick	May 1960	S
2939458	Lundquist	Jun 1960	A
3013556	Galleher, Jr.	Dec 1961	A
3042035	Coanda	Jul 1962	A
3117574	Replogle	Jan 1964	A
3182659	Blount	May 1965	A
3189027	Bartlett, Jr.	Jun 1965	A
3193624	Webb et al.	Jul 1965	A
3238943	Holley	Mar 1966	A
3288138	Sachs	Nov 1966	A
3315672	Cunningham et al.	Apr 1967	A
3315674	Bloom et al.	Apr 1967	A
3330273	Bennett	Jul 1967	A
3330274	Bennett	Jul 1967	A
3362420	Blackburn et al.	Jan 1968	A
3363833	Laerdal	Jan 1968	A
3545436	Holloway	Dec 1970	A
3556122	Laerdal	Jan 1971	A
3580051	Blevins	May 1971	A
3670726	Mahon et al.	Jun 1972	A
3682171	Dali et al.	Aug 1972	A
3700000	Hesse et al.	Oct 1972	A
3720235	Schrock	Mar 1973	A
3725953	Johnson et al.	Apr 1973	A
3739774	Gregory	Jun 1973	A
3750333	Vance	Aug 1973	A
3752157	Malmin	Aug 1973	A
3754552	King	Aug 1973	A
3796216	Schwarz	Mar 1974	A
3799164	Rollins	Mar 1974	A
D231803	Huddy	Jun 1974	S
3830230	Chester	Aug 1974	A
3861385	Carden	Jan 1975	A
3902486	Guichard	Sep 1975	A
3905361	Hewson et al.	Sep 1975	A
3910261	Ragsdale et al.	Oct 1975	A
3938614	Ahs	Feb 1976	A
3972321	Proctor	Aug 1976	A
3978854	Mills, Jr.	Sep 1976	A
4006744	Steer	Feb 1977	A
4062357	Laerdal	Dec 1977	A
4069516	Watkins, Jr.	Jan 1978	A
4077404	Elam	Mar 1978	A
D248497	Slosek	Jul 1978	S
D250131	Lewis et al.	Oct 1978	S
4120302	Ziegler	Oct 1978	A
4142527	Garcia	Mar 1979	A
4153051	Shippert	May 1979	A
4156426	Gold	May 1979	A
4167185	Lewis	Sep 1979	A
4201205	Bartholomew	May 1980	A
4226234	Gunderson	Oct 1980	A
4231363	Grimes	Nov 1980	A
4233972	Hauff et al.	Nov 1980	A
4239038	Holmes	Dec 1980	A
4245632	Houston	Jan 1981	A
4248218	Fischer	Feb 1981	A
4263908	Mizerak	Apr 1981	A
4264743	Maruyama et al.	Apr 1981	A
4265239	Fischer, Jr. et al.	May 1981	A
4266540	Panzik et al.	May 1981	A
4267845	Robertson, Jr. et al.	May 1981	A
4273124	Zimmerman	Jun 1981	A
4274406	Bartholomew	Jun 1981	A
D262322	Mizerak	Dec 1981	S
4304229	Curtin	Dec 1981	A
4312359	Olson	Jan 1982	A
4328797	Rollins et al.	May 1982	A
4337767	Yahata	Jul 1982	A
4347205	Stewart	Aug 1982	A
4354488	Bartos	Oct 1982	A
4367735	Dali	Jan 1983	A
4367816	Wilkes	Jan 1983	A
4369284	Chen	Jan 1983	A
4402316	Gadberry	Sep 1983	A
4406283	Bir	Sep 1983	A
4412537	Tiger	Nov 1983	A
4414973	Matheson et al.	Nov 1983	A
4417575	Hilton et al.	Nov 1983	A
4422456	Teip	Dec 1983	A
4446576	Hisataka	May 1984	A
4449526	Elam	May 1984	A
4454880	Muto et al.	Jun 1984	A
4454881	Huber et al.	Jun 1984	A
4455675	Bose et al.	Jun 1984	A
4458679	Ward	Jul 1984	A
4467799	Steinberg	Aug 1984	A
4493614	Chu et al.	Jan 1985	A
4522639	Ansite et al.	Jun 1985	A
4548200	Wapner	Oct 1985	A
4549542	Chien	Oct 1985	A
4558710	Eichler	Dec 1985	A
4572323	Randall	Feb 1986	A
4579113	McCreadie et al.	Apr 1986	A
4587967	Chu et al.	May 1986	A
4593688	Payton	Jun 1986	A
4601465	Roy	Jul 1986	A
4603692	Montesi	Aug 1986	A
D285496	Berman	Sep 1986	S
4616647	McCreadie	Oct 1986	A
4617637	Chu et al.	Oct 1986	A
4622964	Flynn	Nov 1986	A
4630604	Montesi	Dec 1986	A
4641645	Tayebi	Feb 1987	A
4641647	Behan	Feb 1987	A
D289238	Arthur, Jr.	Apr 1987	S
4655213	Rapoport et al.	Apr 1987	A
4657010	Wright	Apr 1987	A
4660555	Payton	Apr 1987	A
4665570	Davis	May 1987	A
4671267	Stout	Jun 1987	A
4671271	Bishop et al.	Jun 1987	A
4674134	Lundin	Jun 1987	A
4676241	Webb et al.	Jun 1987	A
4677975	Edgar et al.	Jul 1987	A
4677977	Wilcox	Jul 1987	A
4686977	Cosma	Aug 1987	A
4699139	Marshall et al.	Oct 1987	A
4706664	Snook et al.	Nov 1987	A
4707863	McNeal	Nov 1987	A
4711636	Bierman	Dec 1987	A
4713844	Westgate	Dec 1987	A
H397	Stark	Jan 1988	H
D293613	Wingler	Jan 1988	S
4739755	White et al.	Apr 1988	A
4753233	Grimes	Jun 1988	A
4767411	Edmunds	Aug 1988	A
4770169	Schmoegner et al.	Sep 1988	A
4772760	Graham	Sep 1988	A
4774941	Cook	Oct 1988	A
4774946	Ackerman et al.	Oct 1988	A
4782832	Trimble et al.	Nov 1988	A
4790829	Bowden et al.	Dec 1988	A
4799477	Lewis	Jan 1989	A
4802857	Laughlin	Feb 1989	A
4803981	Vickery	Feb 1989	A
4807617	Nesti	Feb 1989	A
4809692	Nowacki et al.	Mar 1989	A
4811730	Milano	Mar 1989	A
4819629	Jonson	Apr 1989	A
4821713	Bauman	Apr 1989	A
4827924	Japuntich	May 1989	A
4830138	Palmaer et al.	May 1989	A
4832017	Schnoor	May 1989	A
4838878	Kalt et al.	Jun 1989	A
4841953	Dodrill	Jun 1989	A
4848334	Bellm	Jul 1989	A
4848366	Aita et al.	Jul 1989	A
4850346	Michel et al.	Jul 1989	A
4856118	Sapiejewski	Aug 1989	A
D304384	Derobert	Oct 1989	S
4886058	Bromstrom et al.	Dec 1989	A
4899740	Napolitano	Feb 1990	A
4905683	Cronjaeger	Mar 1990	A
4907584	McGinnis	Mar 1990	A
4910806	Baker et al.	Mar 1990	A
4914957	Dougherty	Apr 1990	A
4915105	Lee	Apr 1990	A
4915106	Aulgur et al.	Apr 1990	A
4919128	Kopala et al.	Apr 1990	A
4919654	Kalt	Apr 1990	A
4938210	Shene	Jul 1990	A
4938212	Snook et al.	Jul 1990	A
4941476	Fisher	Jul 1990	A
4944310	Sullivan	Jul 1990	A
4945907	Tayebi	Aug 1990	A
4947860	Fisher	Aug 1990	A
D310431	Bellm	Sep 1990	S
4960121	Nelson et al.	Oct 1990	A
4966590	Kalt	Oct 1990	A
4969880	Zamierowski	Nov 1990	A
4971051	Toffolon	Nov 1990	A
D313277	Haining	Dec 1990	S
4976698	Stokley	Dec 1990	A
4986269	Hakkinen	Jan 1991	A
4989271	Sapiejewski et al.	Feb 1991	A
4989596	Macris et al.	Feb 1991	A
4989599	Carter	Feb 1991	A
4996983	Amrhein	Mar 1991	A
5000173	Zalkin et al.	Mar 1991	A
5003631	Richardson	Apr 1991	A
5003633	Itoh	Apr 1991	A
5005568	Loescher et al.	Apr 1991	A
5005571	Dietz	Apr 1991	A
5018519	Brown	May 1991	A
5020163	Aileo et al.	Jun 1991	A
5022900	Bar-Yona et al.	Jun 1991	A
5023955	Murphy, II et al.	Jun 1991	A
5025805	Nutter	Jun 1991	A
5027809	Robinson	Jul 1991	A
5038772	Kolbe et al.	Aug 1991	A
5038776	Harrison et al.	Aug 1991	A
5042473	Lewis	Aug 1991	A
5042478	Kopala et al.	Aug 1991	A
5046200	Feder	Sep 1991	A
5046491	Derrick	Sep 1991	A
5062421	Burns et al.	Nov 1991	A
5063922	Hakkinen	Nov 1991	A
5069205	Urso	Dec 1991	A
5074297	Venegas	Dec 1991	A
5080092	Tenna	Jan 1992	A
D323908	Hollister et al.	Feb 1992	S
5093940	Nishiyama	Mar 1992	A
5109839	Blasdell et al.	May 1992	A
5109840	Daleiden	May 1992	A
5113857	Dickerman et al.	May 1992	A
5117818	Palfy	Jun 1992	A
5121745	Israel	Jun 1992	A
5121746	Sikora	Jun 1992	A
5123677	Kreczko et al.	Jun 1992	A
5127397	Kohnke	Jul 1992	A
5133347	Huennebeck	Jul 1992	A
5137017	Salter	Aug 1992	A
5138722	Urella et al.	Aug 1992	A
5140980	Haughey et al.	Aug 1992	A
5140982	Bauman	Aug 1992	A
5146914	Sturrock	Sep 1992	A
5159938	Laughlin	Nov 1992	A
5178138	Walstrom et al.	Jan 1993	A
5181506	Tardiff, Jr. et al.	Jan 1993	A
D333015	Farmer et al.	Feb 1993	S
5188101	Tumolo	Feb 1993	A
D334633	Rudolph	Apr 1993	S
5199424	Sullivan et al.	Apr 1993	A
D335322	Jones	May 1993	S
5207665	Davis et al.	May 1993	A
5220699	Farris	Jun 1993	A
5222478	Scarberry et al.	Jun 1993	A
5231983	Matson et al.	Aug 1993	A
5233978	Callaway	Aug 1993	A
5243709	Sheehan et al.	Sep 1993	A
5243971	Sullivan et al.	Sep 1993	A
5245995	Sullivan et al.	Sep 1993	A
5263939	Wortrich	Nov 1993	A
5265592	Beaussant	Nov 1993	A
5265595	Rudolph	Nov 1993	A
5267557	Her-Mou	Dec 1993	A
5269296	Landis	Dec 1993	A
5271391	Graves	Dec 1993	A
5279289	Kirk	Jan 1994	A
5280784	Kohler	Jan 1994	A
5291880	Almovist et al.	Mar 1994	A
5299448	Maryyanek	Apr 1994	A
5299579	Gedeon et al.	Apr 1994	A
5299599	Farmer et al.	Apr 1994	A
5301689	Wennerholm	Apr 1994	A
5304146	Johnson et al.	Apr 1994	A
5311862	Blasdell et al.	May 1994	A
5322057	Raabe et al.	Jun 1994	A
5322059	Walther	Jun 1994	A
5331691	Runckel	Jul 1994	A
D349586	Handke	Aug 1994	S
5334646	Chen	Aug 1994	A
5335656	Bowe et al.	Aug 1994	A
5343878	Scarberry et al.	Sep 1994	A
5349949	Schegerin	Sep 1994	A
5353789	Schlobohm	Oct 1994	A
5355878	Griffiths et al.	Oct 1994	A
5355893	Mick et al.	Oct 1994	A
5357945	Messina	Oct 1994	A
5357951	Ratner	Oct 1994	A
5364367	Banks et al.	Nov 1994	A
5372130	Stern et al.	Dec 1994	A
5372388	Gargiulo	Dec 1994	A
5372389	Tam et al.	Dec 1994	A
5372390	Conway et al.	Dec 1994	A
5372391	Bast et al.	Dec 1994	A
5375593	Press	Dec 1994	A
5385141	Granatiero	Jan 1995	A
5388571	Roberts et al.	Feb 1995	A
5390373	Flory	Feb 1995	A
5391248	Brain	Feb 1995	A
5394568	Brostrom et al.	Mar 1995	A
5396885	Nelson	Mar 1995	A
5398676	Press et al.	Mar 1995	A
5400776	Bartholomew	Mar 1995	A
5400781	Davenport	Mar 1995	A
5404871	Goodman et al.	Apr 1995	A
5419317	Blasdell et al.	May 1995	A
5419318	Tayebi	May 1995	A
5425359	Liou	Jun 1995	A
5429126	Bracken	Jul 1995	A
5429683	Le Mitouard	Jul 1995	A
5431158	Tirotta	Jul 1995	A
5437267	Weinstein et al.	Aug 1995	A
5438981	Starr et al.	Aug 1995	A
5441046	Starr et al.	Aug 1995	A
D362061	McGinnis et al.	Sep 1995	S
5462528	Roewer	Oct 1995	A
5477852	Landis et al.	Dec 1995	A
5479920	Piper et al.	Jan 1996	A
5481763	Brostrom et al.	Jan 1996	A
5485837	Soles Bee et al.	Jan 1996	A
5488948	Dubruille et al.	Feb 1996	A
5492116	Scarberry et al.	Feb 1996	A
5501214	Sabo	Mar 1996	A
5503147	Bertheau	Apr 1996	A
5509404	Lloyd et al.	Apr 1996	A
5509409	Weatherholt	Apr 1996	A
5511541	Dearstine	Apr 1996	A
5513634	Jackson	May 1996	A
5513635	Bedi	May 1996	A
5517986	Starr et al.	May 1996	A
5522382	Sullivan et al.	Jun 1996	A
5526806	Sansoni	Jun 1996	A
5533506	Wood	Jul 1996	A
5538000	Rudolph	Jul 1996	A
5538001	Bridges	Jul 1996	A
5540223	Starr et al.	Jul 1996	A
5542128	Lomas	Aug 1996	A
5546936	Virag et al.	Aug 1996	A
5558090	James	Sep 1996	A
RE35339	Rapoport	Oct 1996	E
5560354	Berthon-Jones et al.	Oct 1996	A
5568946	Jackowski	Oct 1996	A
5570682	Johnson	Nov 1996	A
5570684	Behr	Nov 1996	A
5570689	Starr et al.	Nov 1996	A
5575278	Bonhomme et al.	Nov 1996	A
D377089	Starr et al.	Dec 1996	S
5592937	Freund	Jan 1997	A
5592938	Scarberry et al.	Jan 1997	A
5608647	Rubsamen et al.	Mar 1997	A
5617849	Springett et al.	Apr 1997	A
5623923	Bertheau et al.	Apr 1997	A
5642726	Owens et al.	Jul 1997	A
5642730	Baran	Jul 1997	A
5645054	Cotner et al.	Jul 1997	A
5647355	Starr et al.	Jul 1997	A
5647356	Osendorf et al.	Jul 1997	A
5647357	Barnett et al.	Jul 1997	A
5649532	Griffiths	Jul 1997	A
5649533	Oren	Jul 1997	A
5653228	Byrd	Aug 1997	A
5655520	Howe et al.	Aug 1997	A
5655527	Scarberry et al.	Aug 1997	A
5657493	Ferrero et al.	Aug 1997	A
5657752	Landis et al.	Aug 1997	A
5660171	Kimm et al.	Aug 1997	A
5660174	Jacobelli	Aug 1997	A
5662101	Ogden et al.	Sep 1997	A
5666946	Langenback	Sep 1997	A
5676133	Hickle et al.	Oct 1997	A
D385960	Rudolph	Nov 1997	S
5682881	Winthrop et al.	Nov 1997	A
5685296	Zdrojkowski et al.	Nov 1997	A
5687715	Landis et al.	Nov 1997	A
D389238	Kirk, III et al.	Jan 1998	S
5704345	Berthon-Jones	Jan 1998	A
5707342	Tanaka	Jan 1998	A
5709204	Les1er	Jan 1998	A
5715814	Ebers	Feb 1998	A
5724964	Brunson et al.	Mar 1998	A
5724965	Handke et al.	Mar 1998	A
5732695	Metzger	Mar 1998	A
5735272	Dillon et al.	Apr 1998	A
5740799	Nielson	Apr 1998	A
5746201	Kidd	May 1998	A
5752509	Lachmann et al.	May 1998	A
5752511	Simmons et al.	May 1998	A
5771886	Maire et al.	Jun 1998	A
5778872	Fukunaga et al.	Jul 1998	A
5782774	Shmulewitz	Jul 1998	A
5794615	Estes	Aug 1998	A
5794617	Brunell et al.	Aug 1998	A
5794619	Edeiman et al.	Aug 1998	A
D398987	Cotner et al.	Sep 1998	S
5807341	Heim	Sep 1998	A
5813423	Kirchgeorg	Sep 1998	A
5832918	Pantino	Nov 1998	A
D402755	Kwok	Dec 1998	S
5842469	Rapp et al.	Dec 1998	A
RE36165	Behr	Mar 1999	E
5884624	Barnett et al.	Mar 1999	A
5887587	Groenke	Mar 1999	A
5896857	Hely et al.	Apr 1999	A
5906203	Klockseth et al.	May 1999	A
5909732	Diesel et al.	Jun 1999	A
5918598	Belfer et al.	Jul 1999	A
5921239	McCall et al.	Jul 1999	A
D412745	Scheu	Aug 1999	S
5935136	Hulse et al.	Aug 1999	A
5937445	Ravo et al.	Aug 1999	A
5937851	Serowski et al.	Aug 1999	A
5954049	Foley et al.	Sep 1999	A
5964485	Hame et al.	Oct 1999	A
5966745	Schwartz et al.	Oct 1999	A
5970975	Estes et al.	Oct 1999	A
5975079	Hellings et al.	Nov 1999	A
6003511	Fukunaga et al.	Dec 1999	A
6006748	Hollis	Dec 1999	A
D419658	Matchett et al.	Jan 2000	S
6016804	Gleason et al.	Jan 2000	A
D421298	Kenyon et al.	Feb 2000	S
6019101	Cotner et al.	Feb 2000	A
6026811	Settle	Feb 2000	A
6029660	Calluaud et al.	Feb 2000	A
6029665	Berthon-Jones	Feb 2000	A
6039044	Sullivan	Mar 2000	A
D423096	Kwok	Apr 2000	S
6044844	Kwok et al.	Apr 2000	A
6062221	Brostrom	May 2000	A
6082360	Rudolph et al.	Jul 2000	A
6086118	McNaughton et al.	Jul 2000	A
6091973	Colla et al.	Jul 2000	A
D428987	Kwok	Aug 2000	S
6095996	Steer et al.	Aug 2000	A
6102040	Tayebi et al.	Aug 2000	A
6109263	Feuchtgruber	Aug 2000	A
6112746	Kwok et al.	Sep 2000	A
6119693	Kwok et al.	Sep 2000	A
6119694	Correa et al.	Sep 2000	A
6123071	Berthon-Jones et al.	Sep 2000	A
6123082	Berthon-Jones	Sep 2000	A
6139787	Harrison	Oct 2000	A
6152137	Schwartz et al.	Nov 2000	A
6155253	Gamberini	Dec 2000	A
6192886	Rudolph	Feb 2001	B1
6193914	Harrison	Feb 2001	B1
D439326	Hecker et al.	Mar 2001	S
6196223	Belfer et al.	Mar 2001	B1
6211263	Cinelli et al.	Apr 2001	B1
6213125	Reese et al.	Apr 2001	B1
6231548	Bassett	May 2001	B1
D443355	Gunaratnam et al.	Jun 2001	S
6241930	Harrison	Jun 2001	B1
6257237	Suzuki	Jul 2001	B1
6257626	Campau	Jul 2001	B1
6258066	Urich	Jul 2001	B1
6279573	Johnson et al.	Aug 2001	B1
6295366	Baller et al.	Sep 2001	B1
6298849	Scholey et al.	Oct 2001	B1
6328031	Tischer et al.	Dec 2001	B1
6328038	Kessler et al.	Dec 2001	B1
6340024	Brookman et al.	Jan 2002	B1
6341606	Bordewick et al.	Jan 2002	B1
6345618	Hayek	Feb 2002	B1
6347631	Hansen et al.	Feb 2002	B1
6357440	Hansen et al.	Mar 2002	B1
6357441	Kwok et al.	Mar 2002	B1
6358279	Tahi et al.	Mar 2002	B1
6371110	Peterson et al.	Apr 2002	B1
6374826	Gunaratnam et al.	Apr 2002	B1
6388640	Chigira et al.	May 2002	B1
6397847	Scarberry et al.	Jun 2002	B1
6412487	Gunaratnam et al.	Jul 2002	B1
6412488	Barnett et al.	Jul 2002	B1
6412593	Jones	Jul 2002	B1
6418928	Bordewick et al.	Jul 2002	B1
6419660	Russo	Jul 2002	B1
6422238	Lithgow	Jul 2002	B1
6423036	Van Huzen	Jul 2002	B1
6425395	Brewer et al.	Jul 2002	B1
6427694	Hecker et al.	Aug 2002	B1
6431172	Bordewick	Aug 2002	B1
6434796	Speirs	Aug 2002	B1
6435181	Jones, Jr. et al.	Aug 2002	B1
6439230	Gunaratnam et al.	Aug 2002	B1
6439234	Curti et al.	Aug 2002	B1
6448303	Paul	Sep 2002	B1
6457473	Brostrom et al.	Oct 2002	B1
6463931	Kwok et al.	Oct 2002	B1
6467482	Boussignac	Oct 2002	B1
6467483	Kopacko et al.	Oct 2002	B1
6470887	Martinez	Oct 2002	B1
6478026	Wood	Nov 2002	B1
6482178	Andrews et al.	Nov 2002	B1
6491034	Gunaratnam et al.	Dec 2002	B1
D468823	Smart	Jan 2003	S
6513526	Kwok et al.	Feb 2003	B2
6520182	Gunaratnam	Feb 2003	B1
6530373	Patron et al.	Mar 2003	B1
6532961	Kwok et al.	Mar 2003	B1
6536435	Fecteau et al.	Mar 2003	B1
6557556	Kwok et al.	May 2003	B2
6561188	Ellis	May 2003	B1
6561190	Kwok	May 2003	B1
6561191	Kwok	May 2003	B1
6561192	Palmer	May 2003	B2
6561193	Noble	May 2003	B1
6571798	Thornton	Jun 2003	B1
6579267	Lynch et al.	Jun 2003	B2
6581594	Drew et al.	Jun 2003	B1
6581601	Ziaee	Jun 2003	B2
6581602	Kwok et al.	Jul 2003	B2
6584975	Taylor	Jul 2003	B1
6595214	Hecker et al.	Jul 2003	B1
6595215	Wood	Jul 2003	B2
6607516	Cinelli et al.	Aug 2003	B2
6615830	Serowski et al.	Sep 2003	B1
6615832	Chen	Sep 2003	B1
6626177	Ziaee	Sep 2003	B1
6627289	Dilnik et al.	Sep 2003	B1
6631718	Lovell	Oct 2003	B1
6634358	Kwok et al.	Oct 2003	B2
6637434	Noble	Oct 2003	B2
6644315	Ziaee	Nov 2003	B2
6651663	Barnett et al.	Nov 2003	B2
D484237	Lang et al.	Dec 2003	S
6655385	Curti et al.	Dec 2003	B1
6663600	Bierman et al.	Dec 2003	B2
6669712	Cardoso	Dec 2003	B1
D485905	Moore et al.	Jan 2004	S
6679257	Robertson et al.	Jan 2004	B1
6679261	Lithgow	Jan 2004	B2
6679265	Strickland et al.	Jan 2004	B2
6691707	Gunaratnam et al.	Feb 2004	B1
6691708	Kwok et al.	Feb 2004	B2
6701535	Dobbie et al.	Mar 2004	B2
6701926	Olsen et al.	Mar 2004	B2
6701927	Kwok et al.	Mar 2004	B2
6710099	Cinelli et al.	Mar 2004	B2
6712072	Lang	Mar 2004	B1
6729333	Barnett et al.	May 2004	B2
6732733	Brostrom et al.	May 2004	B1
D492992	Guney et al.	Jul 2004	S
D493521	Guney	Jul 2004	S
6766800	Chu et al.	Jul 2004	B2
6766817	da Silva	Jul 2004	B2
6772760	Frater et al.	Aug 2004	B2
6776162	Wood	Aug 2004	B2
6776163	Dougill et al.	Aug 2004	B2
6789543	Cannon	Sep 2004	B2
6796308	Gunaratnam et al.	Sep 2004	B2
6805117	Ho et al.	Oct 2004	B1
6807967	Wood	Oct 2004	B2
6817362	Gelinas et al.	Nov 2004	B2
6820617	Robertson et al.	Nov 2004	B2
6823865	Drew et al.	Nov 2004	B2
6823869	Raje et al.	Nov 2004	B2
6834650	Fini	Dec 2004	B1
6851425	Jaffre	Feb 2005	B2
6851428	Dennis	Feb 2005	B2
6851429	Bishop	Feb 2005	B2
6860269	Kwok et al.	Mar 2005	B2
6860270	Sniadich	Mar 2005	B2
6871649	Kwok et al.	Mar 2005	B2
6892729	Smith et al.	May 2005	B2
6895965	Scarberry et al.	May 2005	B2
6907882	Ging	Jun 2005	B2
6914091	Donald et al.	Jul 2005	B2
6918404	Dias da Silva	Jul 2005	B2
6926004	Schumacher	Aug 2005	B2
6938620	Payne, Jr.	Sep 2005	B2
6951218	Gradon et al.	Oct 2005	B2
6959710	Barnett et al.	Nov 2005	B2
6968844	Liland	Nov 2005	B2
6972003	Bierman et al.	Dec 2005	B2
6986352	Frater et al.	Jan 2006	B2
6997177	Wood	Feb 2006	B2
7000614	Lang et al.	Feb 2006	B2
7007696	Palkon et al.	Mar 2006	B2
7011090	Drew et al.	Mar 2006	B2
7018362	Bierman et al.	Mar 2006	B2
7040321	Goebel	May 2006	B2
7052127	Harrison	May 2006	B2
7059326	Heidmann et al.	Jun 2006	B2
7066179	Eaton et al.	Jun 2006	B2
7066586	da Silva	Jun 2006	B2
7069932	Eaton et al.	Jul 2006	B2
7076282	Munro et al.	Jul 2006	B2
7076822	Pearce	Jul 2006	B2
7080645	Genger et al.	Jul 2006	B2
7093599	Chen	Aug 2006	B2
7100610	Biener et al.	Sep 2006	B2
7101359	Kline et al.	Sep 2006	B2
7107989	Frater et al.	Sep 2006	B2
7114497	Aylsworth et al.	Oct 2006	B2
7121279	Dennis	Oct 2006	B2
7146976	McKown	Dec 2006	B2
7152599	Thomas	Dec 2006	B2
7152601	Barakat et al.	Dec 2006	B2
7178525	Matula, Jr. et al.	Feb 2007	B2
7185652	Gunaratnam et al.	Mar 2007	B2
7191781	Wood	Mar 2007	B2
7207328	Altemus	Apr 2007	B1
7207335	Kwok et al.	Apr 2007	B2
7210481	Lovell et al.	May 2007	B1
7216647	Lang et al.	May 2007	B2
7237551	Ho et al.	Jul 2007	B2
7243723	Surjaatmadja	Jul 2007	B2
D550836	Chandran et al.	Sep 2007	S
D552733	Criscuolo et al.	Oct 2007	S
7285255	Kadlec et al.	Oct 2007	B2
7302950	Berthon-Jones et al.	Dec 2007	B2
7308895	Wixey et al.	Dec 2007	B2
7318437	Gunaratnam	Jan 2008	B2
7318439	Raje et al.	Jan 2008	B2
7320323	Lang et al.	Jan 2008	B2
7341060	Ging et al.	Mar 2008	B2
7353826	Sleeper et al.	Apr 2008	B2
7353827	Geist	Apr 2008	B2
7441618	Sorg	Oct 2008	B2
7461656	Gunaratnam et al.	Dec 2008	B2
7470256	Lampropoulos et al.	Dec 2008	B2
7481220	Meyer et al.	Jan 2009	B2
7487772	Ging et al.	Feb 2009	B2
7503327	Gunaratnam	Mar 2009	B2
7509958	Amarasinghe et al.	Mar 2009	B2
7520869	Lampropoulos et al.	Apr 2009	B2
7523754	Lithgow	Apr 2009	B2
7562658	Madaus et al.	Jul 2009	B2
7614400	Lithgow et al.	Nov 2009	B2
7614401	Thompson	Nov 2009	B2
7621274	Sprinkle et al.	Nov 2009	B2
7624735	Ho et al.	Dec 2009	B2
7640934	Zollinger et al.	Jan 2010	B2
7654263	Lang et al.	Feb 2010	B2
7658189	Davidson et al.	Feb 2010	B2
7665464	Kopacko et al.	Feb 2010	B2
7699808	Marrs et al.	Apr 2010	B2
7703457	Barnett et al.	Apr 2010	B2
7708017	Davidson	May 2010	B2
7743767	Ging et al.	Jun 2010	B2
7762259	Gunaratnam	Jul 2010	B2
7775209	Biener et al.	Aug 2010	B2
7779832	Ho	Aug 2010	B1
7798144	Kwok et al.	Sep 2010	B2
7814911	Bordewick et al.	Oct 2010	B2
7819117	Park	Oct 2010	B2
7819119	Ho	Oct 2010	B2
7827990	Melidis et al.	Nov 2010	B1
7841345	Guney et al.	Nov 2010	B2
7856980	Lang et al.	Dec 2010	B2
7856982	Matula, Jr. et al.	Dec 2010	B2
7861715	Jones et al.	Jan 2011	B2
7874293	Gunaratnam et al.	Jan 2011	B2
7878199	Ging et al.	Feb 2011	B2
7900631	Persson	Mar 2011	B2
7900635	Gunaratnam et al.	Mar 2011	B2
7931024	Ho et al.	Apr 2011	B2
7958893	Lithgow et al.	Jun 2011	B2
7967013	Ging et al.	Jun 2011	B2
7967014	Heidmann et al.	Jun 2011	B2
7971590	Frater et al.	Jul 2011	B2
7992559	Lang et al.	Aug 2011	B2
7997267	Ging et al.	Aug 2011	B2
8042538	Ging et al.	Oct 2011	B2
8042541	Amarasinghe et al.	Oct 2011	B2
8042542	Ging et al.	Oct 2011	B2
8042546	Gunaratnam et al.	Oct 2011	B2
8051850	Kwok et al.	Nov 2011	B2
8091553	Bordewick et al.	Jan 2012	B2
8096301	Smith et al.	Jan 2012	B2
8136524	Ging et al.	Mar 2012	B2
8136525	Lubke et al.	Mar 2012	B2
8186352	Gunaratnam et al.	May 2012	B2
8210180	Gunaratnam	Jul 2012	B2
8220459	Davidson et al.	Jul 2012	B2
8297283	Hitchcock et al.	Oct 2012	B2
8397728	D'Souza et al.	Mar 2013	B2
8528561	Ng et al.	Sep 2013	B2
8944061	D'Souza et al.	Feb 2015	B2
9027556	Ng et al.	May 2015	B2
20010020474	Hecker et al.	Sep 2001	A1
20020020416	Namey	Feb 2002	A1
20020023649	Gunaratnam	Feb 2002	A1
20020029780	Frater et al.	Mar 2002	A1
20020046755	Devoss	Apr 2002	A1
20020066452	Kessler et al.	Jun 2002	A1
20020069872	Gradon et al.	Jun 2002	A1
20020124849	Billette de Villemeur	Sep 2002	A1
20020143296	Russo	Oct 2002	A1
20020157673	Kessler et al.	Oct 2002	A1
20020174868	Kwok et al.	Nov 2002	A1
20030019495	Palkon et al.	Jan 2003	A1
20030062048	Gradon et al.	Apr 2003	A1
20030089373	Gradon et al.	May 2003	A1
20030154984	Fernandes	Aug 2003	A1
20030168063	Gambone et al.	Sep 2003	A1
20030196656	Moore et al.	Oct 2003	A1
20030196658	Ging et al.	Oct 2003	A1
20040025883	Eaton et al.	Feb 2004	A1
20040065328	Amarasinghe et al.	Apr 2004	A1
20040067333	Amarasinghe	Apr 2004	A1
20040094157	Dantanarayana et al.	May 2004	A1
20040106891	Langan et al.	Jun 2004	A1
20040111104	Schein et al.	Jun 2004	A1
20040112384	Lithgow et al.	Jun 2004	A1
20040112385	Drew et al.	Jun 2004	A1
20040118406	Lithgow et al.	Jun 2004	A1
20040127856	Johnson	Jul 2004	A1
20040177850	Gradon et al.	Sep 2004	A1
20040182396	Dennis	Sep 2004	A1
20040182398	Sprinkle et al.	Sep 2004	A1
20040211428	Jones	Oct 2004	A1
20040226566	Gunaratnam et al.	Nov 2004	A1
20040255949	Lang	Dec 2004	A1
20050005940	Gunaratnam	Jan 2005	A1
20050011521	Sprinkle et al.	Jan 2005	A1
20050011524	Thomlinson et al.	Jan 2005	A1
20050022820	Kwok et al.	Feb 2005	A1
20050051171	Booth	Mar 2005	A1
20050051176	Riggins	Mar 2005	A1
20050056286	Huddart et al.	Mar 2005	A1
20050061326	Payne, Jr.	Mar 2005	A1
20050072428	Ho et al.	Apr 2005	A1
20050098183	Nash et al.	May 2005	A1
20050150495	Rittner et al.	Jul 2005	A1
20050155604	Ging et al.	Jul 2005	A1
20050211252	Lang et al.	Sep 2005	A1
20050241644	Gunaratnam et al.	Nov 2005	A1
20060000476	Salem	Jan 2006	A1
20060042629	Geist	Mar 2006	A1
20060060200	Ho	Mar 2006	A1
20060076017	Walker et al.	Apr 2006	A1
20060076018	Barnett	Apr 2006	A1
20060076019	Ho	Apr 2006	A1
20060107960	Smart	May 2006	A1
20060118117	Berthon-Jones et al.	Jun 2006	A1
20060124131	Chandran et al.	Jun 2006	A1
20060130844	Ho	Jun 2006	A1
20060137690	Gunaratnam et al.	Jun 2006	A1
20060174887	Chandran et al.	Aug 2006	A1
20060201514	Jones	Sep 2006	A1
20060207597	Wright	Sep 2006	A1
20060213520	Frater et al.	Sep 2006	A1
20060231103	Matula, Jr.	Oct 2006	A1
20060237018	McAuley et al.	Dec 2006	A1
20060272646	Ho et al.	Dec 2006	A1
20060283456	Geiselhart	Dec 2006	A1
20060283461	Lubke	Dec 2006	A1
20070023044	Kwok	Feb 2007	A1
20070044804	Matula, Jr. et al.	Mar 2007	A1
20070137653	Wood	Jun 2007	A1
20070144525	Davidson et al.	Jun 2007	A1
20070163600	Hoffman	Jul 2007	A1
20070193583	Reed	Aug 2007	A1
20070215161	Frater et al.	Sep 2007	A1
20070221226	Hansen et al.	Sep 2007	A1
20070267017	McAuley et al.	Nov 2007	A1
20070272249	Chandran et al.	Nov 2007	A1
20070282272	Bannon et al.	Dec 2007	A1
20080004573	Kaufmann et al.	Jan 2008	A1
20080006277	Worboys et al.	Jan 2008	A1
20080041391	Worley	Feb 2008	A1
20080047560	Veliss et al.	Feb 2008	A1
20080060649	Veliss et al.	Mar 2008	A1
20080065022	Kyvik et al.	Mar 2008	A1
20080066761	Hodos	Mar 2008	A1
20080110464	Davidson et al.	May 2008	A1
20080110469	Weinberg	May 2008	A1
20080149105	Matula	Jun 2008	A1
20080178875	Henry	Jul 2008	A1
20080178886	Lieberman et al.	Jul 2008	A1
20080200880	Kyvik et al.	Aug 2008	A1
20080210241	Schulz	Sep 2008	A1
20080230068	Rudolph	Sep 2008	A1
20080257354	Davidson et al.	Oct 2008	A1
20080264413	Doherty	Oct 2008	A1
20080302365	Cohen et al.	Dec 2008	A1
20080314389	Thomas et al.	Dec 2008	A1
20090044808	Guney et al.	Feb 2009	A1
20090050156	Ng et al.	Feb 2009	A1
20090065729	Worboys	Mar 2009	A1
20090126739	Ng et al.	May 2009	A1
20090139526	Melidis et al.	Jun 2009	A1
20090139527	Ng et al.	Jun 2009	A1
20090151729	Judson et al.	Jun 2009	A1
20090173343	Omura et al.	Jul 2009	A1
20090217929	Kwok et al.	Sep 2009	A1
20090223518	Kwok et al.	Sep 2009	A1
20090223521	Howard et al.	Sep 2009	A1
20090223523	Chang	Sep 2009	A1
20100000534	Kooij et al.	Jan 2010	A1
20100000543	Berthon-Jones et al.	Jan 2010	A1
20100018534	Veliss et al.	Jan 2010	A1
20100043800	Omura	Feb 2010	A1
20100089401	Lang et al.	Apr 2010	A1
20100132717	Davidson et al.	Jun 2010	A1
20100192955	Biener et al.	Aug 2010	A1
20100282265	Melidis et al.	Nov 2010	A1
20100300447	Biener et al.	Dec 2010	A1
20100319700	Ng et al.	Dec 2010	A1
20110030692	Jones et al.	Feb 2011	A1
20110056497	Scheiner et al.	Mar 2011	A1
20110220110	Frater et al.	Sep 2011	A1
20110220114	Lithgow et al.	Sep 2011	A1
20110226254	Lang et al.	Sep 2011	A1
20110259337	Hitchcock et al.	Oct 2011	A1
20120138063	Eves et al.	Jun 2012	A1
20120174928	Raje et al.	Jul 2012	A1
20120266886	Davidson et al.	Oct 2012	A1
20130037033	Hitchcock et al.	Feb 2013	A1
20130081628	Davidson et al.	Apr 2013	A1
20130081629	Davidson et al.	Apr 2013	A1
20130081630	Davidson et al.	Apr 2013	A1
20130081631	Davidson et al.	Apr 2013	A1
20130081632	Davidson et al.	Apr 2013	A1
20130086795	Davidson et al.	Apr 2013	A1
20130086796	Davidson et al.	Apr 2013	A1
20130087147	Davidson et al.	Apr 2013	A1
20130087148	Davidson et al.	Apr 2013	A1
20130087149	Davidson et al.	Apr 2013	A1
20130092168	Davidson et al.	Apr 2013	A1
20130092170	Davidson et al.	Apr 2013	A1
20130133658	Ng et al.	May 2013	A1
20130133660	Ng et al.	May 2013	A1
20140202466	Ho	Jul 2014	A1
20140373847	Ng et al.	Dec 2014	A2

Foreign Referenced Citations (292)

Number	Date	Country
9177110	Nov 1991	AU
9464816	Dec 1994	AU
9516178	Jul 1995	AU
9459430	Oct 1995	AU
9532914	Feb 1996	AU
9651130	Oct 1996	AU
9741018	Apr 1998	AU
9889312	Jan 1999	AU
2005100738	Nov 2005	AU
200600031	Jan 2006	AU
618807	Apr 1961	CA
623129	Jul 1961	CA
1039144	Sep 1978	CA
1219883	Jun 1999	CN
2464353	Dec 2001	CN
2695009	Apr 2005	CN
1623609	Jun 2005	CN
1735439	Feb 2006	CN
1784250	Jun 2006	CN
1901962	Jan 2007	CN
1972727	May 2007	CN
2902337	May 2007	CN
1988930	Jun 2007	CN
101102807	Jan 2008	CN
185 017	May 1907	DE
284 800	Nov 1913	DE
459 104	Apr 1928	DE
701 690	Jan 1941	DE
30 11 900	Oct 1980	DE
146 688	Jan 1981	DE
30 15 279	Oct 1981	DE
31 49 449	Oct 1982	DE
159 396	Mar 1983	DE
33 45 067	Jun 1984	DE
37 07 952	Mar 1987	DE
35 37 507	Apr 1987	DE
35 39 073	May 1987	DE
37 19 009	Dec 1988	DE
39 27 038	Feb 1991	DE
40 04 157	Apr 1991	DE
42 12 259	Jan 1993	DE
42 33 448	Apr 1993	DE
43 43 205	Jun 1995	DE
195 48 380	Jul 1996	DE
196 03 949	Aug 1997	DE
297 15 718	Oct 1997	DE
197 35 359	Jan 1998	DE
297 23 101	Jul 1998	DE
197 03 526	Aug 1998	DE
298 10 846	Aug 1998	DE
198 17 332	Jan 1999	DE
198 07 961	Aug 1999	DE
198 08 105	Sep 1999	DE
198 40 760	Mar 2000	DE
200 05 346	May 2000	DE
299 23 141	May 2000	DE
200 17 940	Feb 2001	DE
199 44 242	Mar 2001	DE
199 54 517	Jun 2001	DE
100 02 571	Jul 2001	DE
199 62 515	Jul 2001	DE
100 45 183	May 2002	DE
102 13 905	Oct 2002	DE
10 2004 055 433	Nov 2004	DE
103 31 837	Jan 2005	DE
696 33 023	Jan 2005	DE
20 2004 018 108	Feb 2005	DE
103 38 169	Mar 2005	DE
0 054 154	Jun 1982	EP
0 252 052	Jan 1988	EP
0 264 772	Apr 1988	EP
0 288 937	Nov 1988	EP
0 334 555	Sep 1989	EP
0 386 605	Sep 1990	EP
0 427 474	May 1991	EP
0 462 701	Dec 1991	EP
0 466 960	Jan 1992	EP
0 303 090	Apr 1992	EP
0 549 299	Jun 1993	EP
0 602 424	Jun 1994	EP
0 608 684	Aug 1994	EP
0 658 356	Jun 1995	EP
0 697 225	Feb 1996	EP
0 178 925	Apr 1996	EP
0 747 078	Dec 1996	EP
0 776 679	Jun 1997	EP
0 821 978	Feb 1998	EP
0 853 962	Jul 1998	EP
1 027 905	Aug 2000	EP
1 057 494	Dec 2000	EP
1 099 452	May 2001	EP
1 118 346	Jul 2001	EP
1 163 923	Dec 2001	EP
0 830 180	Mar 2002	EP
1 205 205	May 2002	EP
1 258 266	Nov 2002	EP
1 356 843	Oct 2003	EP
1 360 971	Nov 2003	EP
1 481 702	Dec 2004	EP
1 982 740	Oct 2008	EP
2 471 566	Jul 2012	EP
2 471 567	Jul 2012	EP
780018	Apr 1935	FR
2 574 657	Jun 1986	FR
2 658 725	Aug 1991	FR
2 720 280	Dec 1995	FR
2 735 030	Dec 1996	FR
2 749 176	Dec 1997	FR
2 823 122	Oct 2002	FR
532 214	Jan 1941	GB
649 689	Jan 1951	GB
823 887	Nov 1959	GB
880942	Oct 1961	GB
1 392 621	Apr 1975	GB
1 395 391	May 1975	GB
1 467 828	Mar 1977	GB
2 145 335	Mar 1985	GB
2 147 506	May 1985	GB
2 164 569	Mar 1986	GB
2 176 404	Dec 1986	GB
2 186 801	Aug 1987	GB
2 267 648	Dec 1993	GB
2 368 533	May 2002	GB
2 385 533	May 2003	GB
2 397 244	Jul 2004	GB
539-13991	Jul 1964	JP
S51-142793	Nov 1976	JP
H03-007173	Jan 1991	JP
H09-216240	Aug 1997	JP
H11-000397	Jan 1999	JP
H11-104256	Apr 1999	JP
H11-508159	Jul 1999	JP
2000-279520	Oct 2000	JP
2000-325481	Nov 2000	JP
2000-515784	Nov 2000	JP
2002-028240	Apr 2002	JP
2002-543943	Dec 2002	JP
2003-175106	Jun 2003	JP
2003-535657	Dec 2003	JP
2004-000570	Jan 2004	JP
2005-337371	Dec 2005	JP
2006-505373	Feb 2006	JP
3802872	Jul 2006	JP
2007-167671	Jul 2007	JP
2008501438	Jan 2008	JP
2008-526391	Jul 2008	JP
2008-532659	Aug 2008	JP
2008-541955	Nov 2008	JP
WO 8001044	May 1980	WO
WO 8203548	Oct 1982	WO
WO 8606969	Dec 1986	WO
WO 8701950	Apr 1987	WO
WO 9103277	Mar 1991	WO
WO 9215353	Sep 1992	WO
WO 9220392	Nov 1992	WO
WO 9220395	Nov 1992	WO
WO 9301854	Feb 1993	WO
WO 9324169	Dec 1993	WO
WO 9402190	Feb 1994	WO
WO 9416759	Aug 1994	WO
WO 9420051	Sep 1994	WO
WO 9502428	Jan 1995	WO
WO 9617643	Jun 1996	WO
WO 9625983	Aug 1996	WO
WO 9628207	Sep 1996	WO
WO 9639206	Dec 1996	WO
WO 9640370	Dec 1996	WO
WO 9700092	Jan 1997	WO
WO 9707847	Mar 1997	WO
WO 9709090	Mar 1997	WO
WO 9720597	Jun 1997	WO
WO 9741911	Nov 1997	WO
WO 9803145	Jan 1998	WO
WO 9804310	Feb 1998	WO
WO 9811930	Mar 1998	WO
WO 9812965	Apr 1998	WO
WO 9818514	May 1998	WO
WO 9823305	Jun 1998	WO
WO 9824499	Jun 1998	WO
WO 9826829	Jun 1998	WO
WO 9826830	Jun 1998	WO
WO 9834665	Aug 1998	WO
WO 9848878	Nov 1998	WO
WO 9916327	Apr 1999	WO
WO 9925410	May 1999	WO
WO 9943375	Sep 1999	WO
WO 9958181	Nov 1999	WO
WO 9961088	Dec 1999	WO
WO 9965554	Dec 1999	WO
WO 0020072	Apr 2000	WO
WO 0021600	Apr 2000	WO
WO 0035525	Jun 2000	WO
WO 0038772	Jul 2000	WO
WO 0050121	Aug 2000	WO
WO 0050122	Aug 2000	WO
WO 0057942	Oct 2000	WO
WO 0069521	Nov 2000	WO
WO 0072905	Dec 2000	WO
WO 0074758	Dec 2000	WO
WO 0076568	Dec 2000	WO
WO 0078381	Dec 2000	WO
WO 0078384	Dec 2000	WO
200162326	Aug 2001	WO
WO 0162326	Aug 2001	WO
WO 0195965	Dec 2001	WO
WO 0197892	Dec 2001	WO
WO 0197893	Dec 2001	WO
WO 0211804	Feb 2002	WO
WO 0232491	Apr 2002	WO
WO 0238221	May 2002	WO
WO 0245784	Jun 2002	WO
WO 0247749	Jun 2002	WO
WO 03005931	Jan 2003	WO
WO 03059427	Jul 2003	WO
WO 03082406	Oct 2003	WO
WO 03090827	Nov 2003	WO
WO 03105921	Dec 2003	WO
WO 2004007010	Jan 2004	WO
WO 2004022144	Mar 2004	WO
WO 2004022145	Mar 2004	WO
WO 2004022146	Mar 2004	WO
WO 2004022147	Mar 2004	WO
2004041341	May 2004	WO
WO 2004041342	May 2004	WO
WO 2004071565	Aug 2004	WO
WO 2004073778	Sep 2004	WO
WO 2004078228	Sep 2004	WO
WO 2004078230	Sep 2004	WO
WO 2004096332	Nov 2004	WO
WO 2005002656	Jan 2005	WO
WO 2005004974	Jan 2005	WO
WO 2005018523	Mar 2005	WO
WO 2005021075	Mar 2005	WO
WO 2005028010	Mar 2005	WO
WO 2005051468	Jun 2005	WO
WO 2005053781	Jun 2005	WO
WO 2005063326	Jul 2005	WO
WO 2005063328	Jul 2005	WO
WO 2005086943	Sep 2005	WO
WO 2005094928	Oct 2005	WO
WO 2005099801	Oct 2005	WO
WO 2005110220	Nov 2005	WO
WO 2005118040	Dec 2005	WO
WO 2005123166	Dec 2005	WO
WO 2006000046	Jan 2006	WO
WO 2006014630	Feb 2006	WO
WO 2006052653	May 2006	WO
WO 2006069345	Jun 2006	WO
WO 2006069415	Jul 2006	WO
WO 2006074513	Jul 2006	WO
WO 2006074515	Jul 2006	WO
WO 2006074516	Jul 2006	WO
WO 20060745514	Jul 2006	WO
WO 2006096924	Sep 2006	WO
WO 2006099658	Sep 2006	WO
WO 2006102707	Oct 2006	WO
WO 2006130903	Dec 2006	WO
WO 2006133480	Dec 2006	WO
WO 2006138416	Dec 2006	WO
WO 2007009182	Jan 2007	WO
2007041751	Apr 2007	WO
2007045008	Apr 2007	WO
WO 2007041751	Apr 2007	WO
WO 2007041786	Apr 2007	WO
2007048174	May 2007	WO
WO 2007048174	May 2007	WO
WO 2007053878	May 2007	WO
WO 2007143772	Dec 2007	WO
WO 2007143792	Dec 2007	WO
WO 2007145534	Dec 2007	WO
WO 2007147088	Dec 2007	WO
2008007985	Jan 2008	WO
WO 2008007985	Jan 2008	WO
WO 2008011682	Jan 2008	WO
WO 2008011683	Jan 2008	WO
WO-2008007985	Jan 2008	WO
WO 2008040050	Apr 2008	WO
WO 2008058330	May 2008	WO
WO 2008070929	Jun 2008	WO
WO 2008106716	Sep 2008	WO
WO-2008106716	Sep 2008	WO
WO 2009026627	Mar 2009	WO
WO 2009052560	Apr 2009	WO
WO 2009062265	May 2009	WO
WO 2009108994	Sep 2009	WO
WO 2009108995	Sep 2009	WO
WO 2009109004	Sep 2009	WO
WO 2010028425	Mar 2010	WO
WO 2010066004	Jun 2010	WO
WO 2011060479	May 2011	WO
WO 2013057647	Apr 2013	WO
WO 2013061260	May 2013	WO

Non-Patent Literature Citations (476)

Entry
Pellethane specs at Microspec https://www.microspecorporation.com/materials/polyurethanes/pellethane/ accessed Jan. 13, 2020 (Year: 2020).
Decision Instituting Inter Partes Review, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00061, U.S. Pat. No. 9,119,931 B2, dated Mar. 23, 2017 (26 pages).
Scheduling Order, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00061, U.S. Pat. No. 9,119,931 B2, dated Mar. 23, 2017 (8 pages).
Decision Instituting Inter Partes Review, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, U.S. Pat. No. 9,119,931 B2, dated Mar. 31, 2017 (37 pages).
Scheduling Order, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, U.S. Pat. No. 9,119,931 B2, dated Mar. 31, 2017 (8 pages).
Third Amended Statement of Case marked-up and clean formats filed Jan. 31, 2017 in related New Zealand Application No. 622670 (47 pages).
Decision Denying Institution of Inter Partes Review, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00064, U.S. Pat. No. 9,119,931 B2, dated Apr. 11, 2017 (25 pages).
Decision Denying Institution of Inter Partes Review, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00065, U.S. Pat. No. 9,119,931 B2, dated Apr. 11, 2017 (15 pages).
EPO Brief Communication issued in related European Application No. 13197251.5 dated Mar. 28, 2017 (10 pages).
EPO Communication of a Notice of Opposition issued in related European Application No. 13197251.5 dated Sep. 8, 2016 (56 pages).
R.A. Malloy in “Plastic part design for injection molding: An introduction”; Section 6.3 Snap joint assemblies, 1994, Munich, Hanser (10 pages).
Second Statutory Declaration of Christopher Bryn Sparks in related New Zealand Application Nos. 701136, 701183, 607032, 622666, and 622670, dated Apr. 19, 2017 (6 pages).
Statutory Declaration of Alastair Edwin McAuley in Relation to Simplicity Mask and Sleepnet IQ Mask in related New Zealand Application Nos. 622666, 622670, 607032, 701136, 701183, and 624599, dated Apr. 21, 2017 (5 pages).
Statutory Declaration of Arthur Lucian Howden Roberts in related New Zealand Application Nos. 607032, 622666, 622670, and 624599, dated Apr. 12, 2017 (11 pages).
Statutory Declaration of Daniel Anthony Hearn in related New Zealand Application Nos. 607032, 622666, 622670, 701136 and 701136, dated Jan. 27, 2017 (41 pages).
Fifth Statutory Declaration of Alastair Edwin McAuley in related New Zealand Application No. 607032, dated Apr. 21, 2017 (153 pages).
EXH-AM4 to AM-23 referred to in Fifth Statutory Declaration of Alastair Edwin McAuley in related New Zealand Application No. 607032, dated Apr. 21, 2017 (188 pages).
Fourth Statutory Declaration of Alastair Edwin McAuley in related New Zealand Application No. 622666, dated Apr. 21, 2017 (220 pages).
EXH-AM3 to AM24 referred to in Fourth Statutory Declaration of Alastair Edwin McAuley in related New Zealand Application No. 622666, dated Apr. 21, 2017 (191 pages).
Fifth Statutory Declaration of Alastair Edwin McAuley in related New Zealand Application No. 622670, dated Apr. 21, 2017 (238 pages).
EXH-AM4 to AM26 referred to in Fifth Statutory Declaration of Alastair Edwin McAuley in related New Zealand Application No. 622670, dated Apr. 21, 2017 (193 pages).
Notice of Reasons for Rejection dated Mar. 27, 2017 in Japanese Application No. 2016-092520 with English translation (18 pages).
Notification of the Second Office Action dated Apr. 12, 2017 in Chinese Application No. 201510342347.9, with English translation (16 pages).
Second Amended Statement of Case marked-up and clean formats filed May 29, 2017 in New Zealand Application No. 624599 (80 pages).
Third Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats filed May 29, 2017 in New Zealand Application No. 624599 (15 pages).
Second Statutory Declaration of Christopher Bryn Sparks in New Zealand Application Nos. 701136, 701183, 607032, 622666, and 622670, dated Apr. 19, 2017, including Exhibits BS-1 to BS-3 (6 pages).
Fourth Statutory Declaration of Alastair Edwin McAuley in New Zealand Application No. 701183, dated May 31, 2017, including Exhibits AM-5 to AM-18 (306 pages).
Statutory Declaration of Alastair Edwin McAuley in Relation to Simplicity Mask and Sleepnet IQ Mask in New Zealand Application Nos. 622666, 622670, 607032, 701136, 701183, and 624599, dated Apr. 21, 2017, including Exhibits AM-100 to AM-102 (5 pages).
Statutory Declaration of Arthur Lucian Howden Roberts in New Zealand Application Nos. 607032, 622666, 622670, and 624599, dated Apr. 12, 2017 (11 pages).
Statutory Declaration of Daniel Anthony Hearn in New Zealand Application Nos. 607032, 622666, 622670, and 701136, dated Jan. 27, 2017, including Exhibits ALR-1 to ALR-3 (41 pages).
Seventh Statutory Declaration of Alastair Edwin McAuley in New Zealand Application No. 701136, dated May 31, 2017, including Exhibits AM-9 to AM-22 (332 pages).
Scheduling Order, 37 C.F.R. § 42.5, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00501, U.S. Pat. No. 9,027,556 B2, dated Jun. 14, 2017 (10 pages).
Decision, Institution of Inter Partes Review, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00501, U.S. Pat. No. 9,027,556 B2, dated Jun. 14, 2017 (44 pages).
Scheduling Order, 37 C.F.R. § 42.5, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00504, U.S. Pat. No. 9,027,556 B2, dated Jun. 14, 2017 (10 pages).
Decision, Institution of Inter Partes Review, 37 C.F.R. § 42.108, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00504, U.S. Pat. No. 9,027,556 B2, dated Jun. 14, 2017 (51 pages).
AJ Park IP Limited Letter to IPONZ filed Jul. 6, 2018 in New Zealand Application Nos. 607032, 622666, 622670, 701136 and 701183 (1 page).
Statutory Declaration of Alastair Edwin McAuley dated Jul. 6, 2018 and filed in New Zealand Application Nos. 607032, 622666, 622670, 701136, 701183 and 624599 with Exhibits AM-M1 to AM-M16 (18 pages).
Notification of the Fourth Office Action dated Aug. 20, 2018 in Chinese Application No. 201510341599.X, with English translation (8 pages).
Report on the Reexamination Prior to Trial drafted Aug. 30, 2018 in Japanese Application No. 2016-092520 (Appeal No. 2018-007697), with English translation (3 pages).
Brief Communication dated Aug. 23, 2018 in European Application No. 13197251.5, including Letter from Opponent dated Aug. 17, 2018 (9 pages).
Communication Pursuant to Article 94(3) EPC dated Oct. 12, 2018 in European Application No. 09716457.8 (9 pages).
Decision of the Commissioner dated Oct. 10, 2018 and issued in New Zealand Appln. Nos. 622666, 622670 and 607032 (81 pages).
Final Written Decisions Under 35 USC §318(a) and 37 CFR §42.73, Paper No. 41, entered Oct. 23, 2018, in Case IPR2017-00501 (U.S. Pat. No. 9,027,556 B2), (99 pages).
Decision Denying Institution of Inter Partes Review of U.S. Pat. No. 9,119,931 B2, Case No. IPR2017-01658, dated Jan. 16, 2018 (17 pages).
Decision Denying Institution of Inter Partes Review of U.S. Pat. No. 9,119,931 B2, Case No. IPR2017-01659, dated Jan. 16, 2018 (17 pages).
Notification of the Third Office Action dated Jan. 17, 2018 in Chinese Application No. 201510341599.X, with English Translation (11 pages).
Final Written Decision Under 35 USC §318(a) and 37 CFR §42.73 dated Mar. 29, 2018 (Paper 34) in Case IPR2017-00062, U.S. Pat. No. 9,119,931 B2 (58 pages).
Third Amended Statement of Case (marked-up and clean formats) filed Jan. 31, 2017 in New Zealand Application No. 607032 (45 pages).
Fifth Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats filed Jan. 31, 2017 in New Zealand Application No. 607032 (11 pages).
Fourth Amended Statement of Case (marked-up and clean formats) filed Jan. 31, 2017 in New Zealand Application No. 701136 (42 pages).
Fifth Amended Notice of Opposition to Grant of Patent (Section 21) (marked-up and clean formats) filed Jan. 31, 2017 in New Zealand Application No. 701136 (13 pages)
Second Amended Statement of Case (marked-up and clean formats) filed Jan. 31, 2017 in New Zealand Application No. 701183 (36 pages).
Second Amended Notice of Opposition to Grant of Patent (Section 21) (marked -up and clean formats) filed Jan. 31, 2017 in New Zealand Application No. 701183 (12 pages).
Examination Report No. 1 for Standard Patent Application dated Feb. 24, 2017 in Australian Application No. 2016222397 (9 pages).
U.S. Appl. No. 15/440,972, filed Feb. 23, 2017, (pending).
Letter filed by AJ Park on behalf of Fisher & Paykel Healthcare Limited in New Zealand Application Nos. 701136 and 701183 on Feb. 28, 2018 (2 pages).
Ninth Statutory Declaration of Alastair Edwin McAuley filed in New Zealand Application No. 701136 on Feb. 28, 2018 (10 pages).
Fifth Statutory Declaration of Alastair Edwin McAuley filed in New Zealand Application No. 701183 on Feb. 28, 2018 (325 pages).
Sixth Statutory Declaration of Alastair Edwin McAuley filed in New Zealand Application No. 701183 on Feb. 28, 2018 (4 pages).
Second Statutory Declaration of Daniel Anthony Hearn signed Oct. 27, 2017 and filed in New Zealand Application Nos. NZ 607032, NZ 622666 and NZ 622670, including Exhibits DH-20 and DH-21 (4 pages).
Statutory Declaration of Jonathan Ellis signed Oct. 27, 2017 and filed in New Zealand Application Nos. NZ 622666, NZ 622670, NZ 607032, NZ 624599, NZ 612787, NZ 701136 and NZ 701183, including Exhibits JE-1 to JE-5 (30 pages).
Statutory Declaration of Brigitte Michelle Jeffs signed Oct. 27, 2017 and filed in New Zealand Application Nos. NZ 622666, NZ 622670, NZ 607032, NZ 624599, NZ 612787, NZ 701136 and NZ 701183 (2 pages).
Sixth Statutory Declaration of Alastair Edwin McAuley signed Oct. 30, 2017 and filed in New Zealand Application No. NZ 607032, including Exhibits AM-24 to AM-31 (333 pages).
Communication Pursuant to Article 94(3) EPC dated Jun. 19, 2017 in European Application No. 09 716 457.8 (8 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Case No. IPR2017-01658, filed Jun. 22, 2017, Fisher & Paykel Healthcare Limited, Petitioner v. ResMed Limited, Patent Owner (131 pages).
Declaration of Jason Eaton, P.E., In Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Case No. IPR2017-01658, executed Jun. 22, 2017 (352 pages).
Complaint of ResMed Ltd, ResMed Inc., and ResMed Corp. Under Section 337 of the Tariff Act of 1930, as amended, Investigation No. 337-TA-1022, executed Aug. 17, 2016 (30 pages).
Answer of ResMed Corp. to Complaint for Patent Infringement and Counterclaims, Fisher &Paykel Healthcare Ltd. v. ResMed Corp., Case No. 3:16-cv-02068-DMS-WVG (S.D. Cal.), filed Sep. 7, 2016 (94 pages).
Declaration of Fiona Cresswell, in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Case No. IPR2017-01658, executed Sep. 21, 2016 (5 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Case No. IPR2017-01659, filed Jun. 22, 2017, Fisher & Paykel Healthcare Limited, Petitioner v.ResMed Limited, Patent Owner (125 pages).
Declaration of Jason Eaton, P.E., In Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Case No. IPR2017-01659, executed Jun. 22, 2017 (333 pages).
Excerpts From the File History of U.S. Pat. No. 9,119,931, D' Souza et al., entitled: Mask System, filed in IPR2017-01658 and IPR2017-01659 on Jun. 22, 2017 (485 pages).
Excerpt from Webster's Ii New College Dictionary, Third Edition, Houghton Mifflin Company, definition for the term “accommodate”, 2005, (3 pages).
Excerpt from The Oxford American College Dictionary, Oxford University Press, Inc., definition for the term “accommodate”, 2002, (3 pages).
Proceeding Correspondence mailed Dec. 13, 2017 in New Zealand Application No. 622670 (2 pages) with Sixth Statutory Declaration of ALastair Edwin McAuley dated Dec. 7, 2017 with Exhibits AM-27 to AM-36 (333 pages).
Notification of the Second Office Action dated Sep. 11, 2017 in Chinese Application No. 2015103415970, with English translation (12 pages).
Fisher & Paykel Healthcare's Reply to ResMed Limited's Patent Owner Response filed Sep. 25, 2017 in Case No. IPR2017-00061 (37 pages).
Fisher & Paykel Healthcare's Reply to ResMed Limited's Patent Owner Response filed Sep. 25, 2017 in Case No. IPR2017-00062 (37 pages).
Transcript of the deposition of Geoffrey Sleeper taken on Aug. 24, 2017 in connection with Case Nos. IPR2017-00059, IPR2017-00061 and IPR2017-00062 (278 pages).
Ng et al., Office Action dated May 16, 2017 in U.S. Appl. No. 13/964,280 (14 pages).
Ng et al., Office Action dated May 16, 2017 in U.S. Appl. No. 15/440,972 (12 pages).
Interlocutory Decision in Opposition Proceedings (Art. 101(3)(a) and 106(2) EPC) mailed Nov. 26, 2018 in European Application No. 13 197 251.5 (EP Patent 2 708 258), 28 pages, and Documents Relating to Amended Text, 102 pages (130 pages total).
Minutes of the Oral Proceedings mailed Nov. 26, 2018 in European Application No. 13 197 251.5 (EP Patent 2 708 258), 11 pages.
Opponent's Statement Setting Out the Grounds of Appeal mailed Jan. 23, 2019 in European Application No. 13 197 251.5 (EP Patent 2 708 258), Appeal No. T3024/18-3.2.02, 88 pages.
Exhibit N6a, Feature Analysis Statement Setting Out the of Maintained Claim 1 of EP 2 708 258, filed Jan. 18, 2019 with Opponent's Statement Setting Out the Grounds of Appeal, 1 page.
Exhibit N7, Summons from the District Court Munich Dealing with the Parallel Infringement Case Docket No. 7 0 15820/16, filed Jan. 18, 2019 with Opponent's Statement Setting Out the Grounds of Appeal, 2 pages.
Exhibit D14a (D14 plus further pp.), Delpy et al., “Schnappverbindungen aus Kunststoff,” ISBN 3-8169-0488-2, 1989, 18 pages.
Exhibit D27, Expert Report of John Shi-Nash (unsigned), dated Jul. 28, 2017, In the High Court of Justice Chancery Divicions Patents Court, Claim Nos. HP-2016-000050 and HP-2016-000054, filed Jan. 18, 2019 with Opponent's Statement Setting Out the Grounds of Appeal, 161 pages.
Exhibit D28, Second Expert Report of John Shi-Nash, dated Sep. 13, 2017, in the High Court of Justice Chancery Division Patents Court, Claim Nos. HP-2016-000050 and HP-2016-000054, filed Jan. 18, 2019 with Opponent's Statement Setting Out the Grounds of Appeal, 34 pages.
Exhibit D29, Affidavit of John Shi-Nash, including Exhibits 1 and 2, executed Jan. 17, 2019 and filed Jan. 18, 2019 with Opponent's Statement Setting Out the Grounds of Appeal, 27 pages.
Exhibit D30, Affidavit of Robert Malloy, Ph.D. including Exhibits 1 and 2, executed Jan. 11, 2019 and filed Jan. 18, 2019 with Opponent's Statement Setting Out the Grounds of Appeal, 21 pages.
Response filed by ResMed Limited in European Appln. No. 13 19 7251.5 (EP Patent 2708258) on Sep. 12, 2017, 35 pages.
Exhibit D5a, Malloy, Robert A., “Plastic Part Design for Injection Molding, An Introduction,” 2nd Edition, Hanser Publishers, Munich, Germany, 2010, filed on Sep. 12, 2017 by ResMed Limited in European Application No. 13 19 7251.5 (EP Patent 2708258), 15 pages.
Exhibit VP20, Excerpt from Wikipedia for “Interference Fit”, date unknown, submitted by ResMed Limited in European Application No. 13 19 7251.5 (EP Patent 2708258) on Sep. 12, 2017, 3 pages. *.
Exhibit VP21, Excerpt from Wikipedia for “Verbindungstechnik,” date unknown, submitted by ResMed Limited in European Application No. 13 19 7251.5 (EP Patent 2708258) on Sep. 12, 2017, 3 pages.*.
Preliminary Remarks filed by ResMed Limited in European Appln. No. 13 19 7251.5 (EP Patent 2708258) on Dec. 22, 2017, 30 pages.
Exhibit VP01, “Excerpt from a letter dated Mar. 31, 2017 of the opponent,” filed by ResMed Limited in European Application No. 13 19 7251.5 (EP Patent 2708258) on Dec. 22, 2017, 2 pages.
Written Submissions filed Aug. 17, 2018 by ResMed Limited in European Application No. 13 19 7251.5 (EP Patent 2708258), 30 pages.
Exhibit VP03, Merriam-Webster dictionary definition of “snap”, 2018, filed by ResMed Limited in European Application No. 13 19 7251.5 (EP Patent 2708258) on Aug. 17, 2018, 19 pages.
First Examination Report dated Jan. 9, 2019 in New Zealand Application No. 748881, 2 pages.
Office Action dated Feb. 5, 2018 in U.S. Appl. No. 15/724,732 (13 pages).
Final Rejection dated Feb. 5, 2018 in Japanese Application No. 2016-092520, with English translation (7 pages).
Statutory Declaration of Yung Chee Kenneth Chong dated Jan. 30, 2018 in connection with New Zealand Application No. 701136, including Exhibit KC-1 (47 pages).
Statutory Declaration of Daniel Anthony Hearn dated Jan. 27, 2017 in connection with New Zealand Application.Nos. NZ 607032, NZ 622666, NZ 622670 and NZ 701136, including Exhibits DH-1 to DH-19 (41 pages).
Eighth Statutory Declaration of Alastair Edwin McAuley dated Jan. 30, 2018 in connection with New Zealand Application No. 701136, including Exhibits AM-23 to AM-34 (362 pages).
Notification of the Second Office Action dated Aug. 28, 2017 in Chinese Application No. 201510341599.X, with English translation (24 pages).
Statutory Declaration of Alastair Edwin McAuley dated Feb. 19, 2019, and filed in New Zealand Application Nos. NZ 607032, NZ 622666, NZ 622670, NZ 701136, NZ 701183 and NZ 624599, including Exhibits AM-M4B, AM-M1A, AM-M1B, and AM-M2A, 26 pages.
Statutory Declaration of Daniel Anthony Hearn dated Feb. 21, 2019, and filed in New Zealand Application Nos. NZ 607032, NZ 622666, NZ 622670, NZ 701136, NZ 701183 and NZ 624599, including Exhibits DH-1, DH-2 and DH-3, 28 pages.
European Communication from the Board of Appeals mailed Apr. 18, 2019, in European Application No. 13197251.5 (Appeal No. T3024/18-3.2.02), including the Letter of the Opponent filing Supplement to the Grounds of Appeal, 42 pages.
U.S. Office Action dated Dec. 18, 2017 in U.S. Appl. No. 15/682,117 (23 pages).
Final Written Decision 35 U.S.C. §318(a) and 37 C.F.R. §42.73, Paper No. 25, Entered Jun. 12, 2018 in Case IPR2017-00504 (U.S. Pat. No. 9,027,556), 55 pages.
Opponent's Submissions—Objections to Applicant's Evidence and Cross-Examination, dated May 31, 2018, and filed in New Zealand Opposition Nos. 622666, 622670 and 607032, 22 pages.
Reply Submissions of the Opponent for the Interlocutory Heading of 28, Jun. 29, 2018, dated Jun. 14, 2018, and filed in New Zealand Opposition Nos. 622666, 622670 and 607032, 47 pages.
Deadline for Applicant to File Evidence mailed by IPONZ on Jun. 25, 2018 in New Zealand Application 624599, 2 pages.
Statutory Declaration of Daniel Anthony Hearn dated Jun. 1, 2018 and filed in New Zealand Application Nos. NZ607032, NZ622666, NZ622670, NZ701136, NZ701183 & NZ624599, including Exhibits DH-1 to DH-26, 232 pages.
Second Amended Statement of Case filed Jun. 1, 2018 in New Zealand Application No. 624599 (clean and tracked versions), 95 pages.
Fourth Amended Notice of Opposition to Grant of Patent (Section 21) filed Jun. 1, 2018 in New Zealand Application No. 624599 (clean and tracked versions), 11 pages.
Statutory Declaration of Alastair Edwin McAuley dated Jun. 2, 2018 and filed in New Zealand Application No. 624599, including Exhibits AM-1 to AM-2, 105 pages.
Third Statutory Declaration of Alastair Edwin McAuley dated Jun. 2, 2018 and filed in New Zealand Application No. 624599, including Exhibits AM-3 to AM-30, 378 pages.
Fourth Statutory Declaration of Alastair Edwin McAuley dated Jun. 2, 2018 and filed in New Zealand Application No. 624599, including Exhibits AM-31 to AM-39, 457 pages.
Third Amended Statement of Case dated Jun. 27, 2018 and filed in New Zealand Application No. 701183 (clean and tracked versions), 56 pages.
Fifth Amended Statement of Case dated Jun. 27, 2018 and filed in New Zealand Application No. 701136 (clean and tracked versions), 62 pages.
Summons to Attend Oral Proceedings Pursuant to Rule 115(1) EPC dated Mar. 2, 2018 in European Patent No. 2708258, together with Preliminary Opinion, 7 pages.
Brief Communication dated Jul. 5, 2018 in European Patent No. 2708258, including Letter from the Opponent filed on Jun. 29, 2018, including Exhibits D17 and D22a to D22c, 39 pages.
Brief Communication dated Dec. 6, 2017 in EP Patent No. 2708258 (1 page), including Response filed by Opponent Fisher & Paykel Healthcare Limited on Dec. 1, 2017 (42 pages), with Additional Document D12 (Judgement of the UK High Court of Justice regarding the UK part of the opposed patent dated Nov. 10, 2017) (54 pages), Additional Document D13 (Decision of the Regional Court of Munich regarding the DE part of the opposed patent dated Sep. 21, 2017) (14 pages), Additional Document D14 (U. Delpy et al., “Schnappverbindungen aus Kunststoff”, expertverlag, 1989) (16 pages), Additional Document D15 (Affidavit by Mr Jason Eaton) (6 pages) and Additional Document D16 (Overview table regarding the auxiliary requests filed by the patentee) (2 pages); (135 total pages).
Notification of the Third Office Action dated Dec. 25, 2017 in Chinese Application No. 201510342347.9, with English Translation (9 pages).
Final Written Decision Under 35 USC §318(a) and 37 CFR §42.73 dated Mar. 21, 2018 (Paper 33) in Case IPR2017-00061, U.S. Pat. No. 9,119,931 B2 (50 pages).
U.S. Appl. No. 13/964,280, filed Aug. 12, 2013.
Adam J. Singer MD et al. “The Cyanoacrylate Topical Skin Adhesives,” American Journal of Emergency Medicine, vol. 26, 2008, pp. 490-496.
Australian Appln. No. 2005253641—Examiner's First Report, dated Apr. 20, 2010.
Australian Appln. No. 2005253641—Examiner's Report, dated Aug. 18, 2011.
Australian Appln. No. 2006206040—Examination Report, dated Jun. 27, 2012.
Australian Appln. No. 2010251884—Examination Report, dated Jul. 27, 2012.
Australian Appln. No. PCT/AU2009/000214—International Search Report, dated May 18, 2009.
Chinese Appln. No. 200480011911.9—Office Action (w/English translation), dated Jun. 24, 2010.
Chinese Appln. No. 200580020203.6—Office Action (w/English translation), dated Jun. 1, 2010.
Chinese Appln. No. 200580020203.6—Office Action (w/English translation), dated Jul. 6, 2011.
Chinese Appln. No. 200580020203.6—Office Action (w/English translation), dated Dec. 23, 2011.
Chinese Appln. No. 200580020203.6—Office Action (w/English translation), dated Apr. 18, 2012.
Chinese Appln. No. 200680002169.4—Office Action (w/English translation), dated Mar. 23, 2010.
Chinese Appln. No. 200680002169.4—Third Office Action (w/English translation), dated Nov. 11, 2010.
Chinese Appln. No. 200810109270.0—Office Action (w/English translation), dated Oct. 19, 2011.
Chinese Appln. No. 200810109270.0—Office Action (w/English translation), dated Jun. 27, 2012.
Chinese Appln. No. 200910223650.1—Office Action (w/English translation), dated Mar. 29, 2012.
Chinese Appln. No. 201010000226.3—Office Action (w/English translation), dated Apr. 26, 2012.
Chinese Appln. No. 201010517066.X—Office Action (w/English translation), dated Nov. 10, 2011.
ComfortLite™, Respironics, http://comfortlite.respironics.com, before applicants' filing date.
ComfortLite™ 2, Respironics, http://comfortlite2.respironics.com, before applicants' filing date.
“Ear Loop Face Mask” , before applicants' filing date.
European Appln. No. EP 01944732.5—Office Action, dated Nov. 27, 2009.
European Appln. No. EP 02714190.2—Search Report, dated Jul. 11, 2006.
European Appln. No. EP 03793493.2—Supplementary Search Report, dated Dec. 2, 2009.
European Appln. No. EP 03793493.2—Office Action, dated Mar. 18, 2011.
European Appln. No. EP 03810331.3—Supplementary Search Report, dated Dec. 18, 2009.
European Appln. No. EP 04730413.4—Supplementary Search Report, dated Sep. 29, 2009.
European Appln. No. EP 05749447.8—Supplementary Search Report, dated Dec. 8, 2009.
European Appln. No. EP 04802114.1—Supplementary Search Report, dated Apr. 27, 2009.
European Appln. No. EP 04802133.1—Supplementary Search Report, dated Sep. 8, 2009.
European Appln. No. EP 04802133.1—Office Action, dated Dec. 22, 2009.
European Appln. No. EP 05746824.1—Supplementary Search Report, dated Dec. 17, 2009.
European Appln. No. EP 06704287.9—Supplementary Search Report, dated Oct. 6, 2009.
European Appln. No. EP 06704287.9—Office Action, dated Jul. 18, 2011.
European Appln. No. EP 07784697.0—Search Report, dated Jul. 27, 2009.
European Appln. No. EP 07845378.4—Search Report, dated Dec. 1, 2009.
European Appln. No. EP 08154854.7—Extended Search Report, dated Nov. 27, 2008.
European Appln. No. EP 08154854.7—Examination Report, dated Jul. 1, 2011.
European Appln. No. EP 08161249.1—Extended Search Report, dated Mar. 19, 2009.
European Appln .No. EP 08161868.8—Search Report, dated Sep. 23, 2008.
European Appln. No. EP 09003544.5—Search Report, dated Jun. 2, 2009.
European Appln. No. EP 09161984.1—Extended Search Report, dated Sep. 3, 2009.
European Appln. No. EP 09178736.6—Search Report, dated Apr. 19, 2010.
European Appln. No. EP 10181516.5—Search Report, dated Jun. 13, 2012.
European Appln. No. EP 10182015.7—Search Report, dated Jun. 15, 2012.
European Appln. No. EP 11174401.7—Search Report, dated Oct. 20, 2011.
European Appln. No. EP 11174407.4—Extended Search Report, dated Oct. 20, 2011.
European Appln. No. EP 12154923.2—Extended Search Report, dated Jun. 1, 2012.
European Appln. No. EP 12154926.5—Extended Search Report, dated Jun. 6, 2012.
European Appln. No. EP 12165749.8—Extended Search Report, dated Oct. 10, 2012.
European Appln. No. EP 12165751.4—Extended Search Report, dated Oct. 8, 2012.
Fisher and Paykel Col.—Product Family—http://www.fphcare.com/osa/products.asp/, before applicants' filing date.
German Patent No. 101 51 984—Decision from Opposition Dec. 6, 2007 hearing by Weinmann (w/English translation), dated Dec. 6, 2007.
Hans Rudolph, Inc.—Mask Products—http://www.rudolphkc.com/products.php?category=MASKS, before applicants' filing date.
“If You Hate CPAP! You Need CPAP Pro ®,” www.cpappro.com, before applicants' filing date.
Japanese Appln. No. 2003-537718—Office Action (w/English translation), dated Oct. 7, 2008.
Japanese Appln. No. 2003-559587—Office Action (w/English translation), dated Mar. 17, 2009.
Japanese Appln. No. 2005-004072—Office Action (w/English translation), dated Sep. 24, 2009.
Japanese Appln. No. 2005-337371—Reasons for Rejection (w/English translation), dated Feb. 22, 2011.
Japanese Appln. No. 2007-515732—Office Action (w/English translation), dated Aug. 16, 2011.
Japanese Appln. No. 2005-337371—Final Office Action (w/English translation), dated Jan. 31, 2012.
Japanese Appln. No. 2006-504029—Office A545843ction (w/English translation), dated Nov. 10, 2009.
Japanese Appln. No. 2006-545843—Notice of Reasons for Rejection (w/English translation), dated Jun. 7, 2011.
Japanese Appln. No. 2007-515732—Office Action (w/English translation), dated Aug. 24, 2010.
Japanese Appln. No. 2007-515732—Office Action (w/English translation), dated Jun. 12, 2012.
Japanese Appln. No. 2007-550636—Office Action (w/English translation), dated Mar. 18, 2011.
Japanese Appln. No. 2007-550636—Office Action (w/English translation), dated Mar. 21, 2012.
Japanese Appln. No. 2007-550636—Notice of Allowance, dated Jul. 10, 2012.
Japanese Appln. No. 2009-140433—Office Action (w/English translation), dated Aug. 20, 2011.
Japanese Appln. No. 2009-140433—Notice of Allowance, dated Sep. 4, 2012.
Japanese Appln. No. 2010-195597—Office Action (w/English translation), dated Jun. 12, 2012.
Japanese Appln. No. 2010-214485—Office Action (w/English translation), dated Jun. 12, 2012.
Japanese Appln. No. 2010-268127—Notice of Reasons for Rejection (w/English translation), dated Jul. 10, 2012.
Japanese Appln. No. 2011-038110—Office Action (w/English translation), dated Aug. 14, 2012.
Japanese Appln. No. S52-164619—English translation of Figure 1, Dec. 1977.
Joel W. Beam, “Tissue Adhesives for Simple Traumatic Lacerations,” Journal of Athletic Training, 2008, vol. 43, No. 2, pp. 222-224.
JP 11-000397A Machine Translation, provided by the Japanese Patent Office, Jan. 6, 2009, full document.
Laurent Brochard, “Pressure Support Ventilation,” Chapter 9, Part IV—Conventional Methods of Ventilator Support, pp. 239-257, 1994.
Mask 1 Photographs, Respironics Inc., Reusable Full Mask (small) Part #452033 Lot #951108, before applicants' filing date.
Mask 2 Photographs, Puritan—Bennett, Adam Curcuit, Shell Part #231700, Swivel Part #616329-00, Pillows (medium) Part #616324, before applicants' filing date.
Mask 3 Photographs, DeVilbiss Healthcare Inc., Devilbiss Seal-Ring and CPAP Mask Kit (medium), Part #73510-669, before applicants' filing date.
Mask 4 Photographs, Respironics Inc., Monarch Mini Mask with Pressure Port, Part #572004, Monarch Headgear, Part #572011, before applicants' filing date.
Mask 5 Photographs, Healthdyne Technologies, Nasal CPAP Mask (medium narrow), Part #702510, before applicants' filing date.
Mask 6 Photographs, Healthdyne Technologies, Soft Series Nasal CPAP Mask, Part #702020, before applicants' filing date.
Mask 7 Photographs, DeVilbiss Healthcare Inc., Small Mask and Seal Rings, Part #73510-668, before applicants' filing date.
Mask 8 Photographs, Respironics Inc., Reusable Contour Mask (medium), Part #302180, before applicants' filing date.
Mask 9 Photographs, Healthdyne Technologies, Healthdyne Large Headgear, before applicants' filing date.
Mask 10 Photographs, Respironics Inc., Soft Cap (medium), Part #302142, before applicants' filing date.
Mask 11 Photographs, before applicants' filing Weinmann. Hamburg, Nasalmaskensystem mit Schalldampfer (medium), Part #WN 23105, before applicants' filing date.
Mask 12 Photographs, Life Care, before applicants' filing date.
Mask 13 Photographs, Healthdyne Technologies, before applicants' filing date.
Mark 14 Photographs, King System, before applicants' filing date.
Mask 15 Photographs, Respironics Inc., Pediatric Mask, before applicants' filing date.
Mask 16 Photographs, Hans Rudolph Inc., Hans Rudolph Silicone Rubber Face Mask/8900, before applicants' filing date.
McPherson et al., “Respiratory Therapy Equipment,” Chapter 8, Third Edition, Introduction to Ventilators, pp. 230-253, 1985.
Merriam-Webster Online Dictionary definition of moveable from the 14th century, before applicants' filing date.
New Zealand Appln. No. 2003275762—Examiner's Report No. 3, dated Nov. 18, 2009.
New Zealand Appln. No. 539836—Examination Report, dated Aug. 25, 2005.
New Zealand Appln. No. 564877—Examination Report, dated Dec. 2, 2009.
New Zealand Appln. No. 567375—Examination Report, dated Nov. 17, 2009.
New Zealand Appln. No. 587344—Examination Report, dated Jan. 19, 2012.
New Zealand Appln. No. 587344—Examination Report, dated Aug. 3, 2012.
New Zealand Appln. No. 587820—Examination Report, dated Sep. 13, 2010.
New Zealand Appln. No. 597552—Examination Report, dated Jan. 19, 2012.
New Zealand Appln. No. 597689—Examination Report, dated Jan. 25, 2012.
PCT/AU2003/001163—International Search Report, dated Nov. 4, 2003.
PCT/AU2003/001471—International Search Report, dated Feb. 12, 2004.
PCT/AU2004/000563—International Search Report, dated Jun. 23, 2004.
PCT/AU2004/001760—International Preliminary Report on Patentability, dated Jul. 3, 2006.
PCT/AU2004/001760—International Search Report, dated Jan. 12, 2005.
PCT/AU2004/001813—International Preliminary Report on Patentability, dated Jul. 3, 2006.
PCT/AU2004/001813—International Search Report, dated Mar. 7, 2005.
PCT/AU2004/001832—International Preliminary Report on Patentability, dated Jul. 3, 2006.
PCT/AU2004/001832—International Search Report, dated Mar. 24, 2005.
PCT/AU2005/000803—International Search Report, dated Jun. 30, 2005.
PCT/AU2005/000850—International Preliminary Report on Patentability, dated Dec. 20, 2006.
PCT/AU2005/000850—International Search Report, dated Aug. 12, 2005.
PCT/AU2006/000032—International Preliminary Report on Patentability, dated Jul. 17, 2007.
PCT/AU2006/000032—International Search Report, dated May 15, 2006.
PCT/AU2006/000770—International Search Report, dated Aug. 3, 2006.
PCT/AU2007/001936—International Search Report, dated Mar. 4, 2008.
PCT/AU2006/001570—International Search Report, dated Jan. 5, 2007.
PCT/AU2007/001051—International Search Report, dated Nov. 5, 2007.
PCT/AU2007/001052—International Search Report, dated Oct. 9, 2007.
PCT/AU2007/001456—International Search Report, dated Dec. 12, 2007.
PCT/AU2009/000240—International Search Report, dated May 21, 2009.
PCT/AU2009/000262—International Search Report, dated Jun. 9, 2009.
PCT/AU2009/001102—International Search Report, dated Dec. 11, 2009.
PCT/AU2009/001144—International Search Report, dated Dec. 8, 2009.
PCT/AU2010/000657—International Search Report, dated Sep. 9, 2010.
Product Brochure for ResMed “Sullivan® Mirage™—The Mirage is Real. A Perfect Fit-First Time,” © 1997 ResMed Limited, 4 pages.
Product Brochure for ResMed “Sullivan® Mirage™—The Mirage is Real. A Perfect Fit-First Time,” © 1998 ResMed Limited, 4 pages.
ResMed Co.—Mask Products—http://resmed.com/portal/site/ResMedUS/index.jsp?, before applicants' filing date.
ResMed Ltd., “Improving patient compliance with The ResMed Range of Mask Systems The Ultimate Interface for CPAP treatment,” before applicants' filing date, 4 pages.
Respironics Co.—Mask Family—http://masksfamily.respironics.com/, before Applicant's filing date.
Snapp Nasal Interface, Tiara Medical Systems, Inc.—http://tiaramed.com/asp_shops/shopdisplayproducts.asp?id=109&cat=SNAPP%2A+Nasal+Interface, before applicants' filing date.
“Somnomask” brochure, 1999 along with various invoices relating to the “Somnomask”.
Somnotron CPAP-Great WM 2300 Instruction Manual, Weinmann Hamburg, 1991, 11 pages.
Subbu Venkatraman et al., “Review Skin Adhesives and Skin Adhesion 1. Transdermal Drug Delivery Systems,” Biomaterials, vol. 19, 1998, pp. 1119-1136.
The ResMed Range of Mask Systems, product brochure, Nov. 1995, 4 pages.
Unsolicited email from Elson Silva, PhD, dated Mar. 28, 2008, “Requesting IDS of U.S. Pat. No. 6,766,817 for patents on fluids moving on porosity by Unsaturated Hydraulic Flow,” (email provided in both HTML and plain text format).
Photo of Weinmann Mask (manufactured 1991).
Photographs of Weinmann Mask, acquired prior to 1998, 7 pages.
U.S. Appl. No. 12/083,779—Office Action including PTO-892 listings, dated Feb. 17, 2012.
U.S. Appl. No. 12/083,779—Office Action including PTO-892 listings, dated Sep, 28, 2012.
U.S. Appl. No. 60/424,686, filed Nov. 8, 2002 (expired).
U.S. Appl. No. 60/483,622, filed Jul. 1, 2003 (expired).
U.S. Appl. No. 60/533,214, filed Dec. 31, 2003 (expired).
U.S. Appl. No. 60/634,802, filed Dec. 10, 2004 (expired).
U.S. Appl. No. 60/835,442, filed Aug. 4, 2006 (expired).
U.S. Appl. No. 60/643,121, filed Jan. 12, 2005 (expired).
U.S. Appl. No. 60/645,672, filed Jan. 21, 2005 (expired).
U.S. Appl. No. 60/795,615, filed Apr. 28, 2006 (expired).
U.S. Appl. No. 60/833,841, filed Jul. 28, 2006 (expired).
U.S. Appl. No. 60/852,649, filed Oct. 19, 2006 (expired).
U.S. Appl. No. 60/874,968, filed Dec. 15, 2006 (expired).
U.S. Appl. No. 60/907,856, filed Apr. 19, 2007 (expired).
U.S. Appl. No. 60/924,241, filed May 4, 2007 (expired).
U.S. Appl. No. 60/929,393, filed Jun. 25, 2007 (expired).
U.S. Appl. No. 60/935,179, filed Jul. 30, 2007 (expired).
U.S. Appl. No. 60/935,336, filed Aug. 8, 2007 (expired).
U.S. Appl. No. 60/996,160, filed Nov. 5, 2007 (expired).
U.S. Appl. No. 61/006,409, filed Jan. 11, 2008 (expired).
U.S. Appl. No. 61/064,818, filed Mar. 28, 2008 (expired).
U.S. Appl. No. 61/071,512, filed May 2, 2008 (expired).
U.S. Appl. No. 61/213,326, filed May 29, 2009 (expired).
U.S. Appl. No. 61/222,711, filed Jul. 2, 2009 (expired).
U.S. Appl. No. 61/263,175, filed Nov. 20, 2009 (expired).
U.S. Appl. No. 61/272,162, filed Aug. 25, 2009 (expired).
U.S. Appl. No. 61/272,250, filed Sep. 4, 2009 (expired).
U.S. Appl. No. 12/230,120, filed Aug. 8, 2008 (corresponds to JP 2009-0050156, Feb. 2009).
Webster's New World Dictionary, Third College Edition 1988, definition for engaged and flexible, before applicants' filing date.
Webster's Third New International Dictionary, 1993, Dictionary definition for adjustable, bendable, and mild steel, before applicants' filing date.
Notification of the First Office Action and English translation, for corresponding Chinese Application No. 200980116004.3, dated Dec. 24, 2012, 12 pages.
Notice of Reasons for Rejection and English Translation for corresponding JP Application No. 2010-548986, dated Apr. 16, 2003, 5 pages.
First Examination Report for corresponding NZ Application No. 607032, dated Feb. 18, 2013, 2 pages.
Patent Examination Report No. 1 for corresponding AU Application No. 2009221630, dated Mar. 21, 2013, 3 pages.
Office Action dated Apr. 4, 2013 in U.S. Appl. No. 13/747,772, including PTO-892.
Office Action dated Apr. 8, 2013 in U.S. Appl. No. 13/747,701, including PTO-892.
Notice of Allowance dated Mar. 28, 2013 in U.S. Appl. No. 12/736,024.
Notification of the Second Office Action and English Translation for corresponding Chinese Application No. 200980116004.3, dated Sep. 11, 2013, 14 pages.
European Search Report for corresponding European Application No. 09716457.8, dated Jan. 31, 2014, 5 pages.
Australian Patent Examination Report No. 2 for corresponding Australian Application No. 2009221630, dated Feb. 25, 2014, 3 pages.
European Search Report for corresponding European Application No. 13197251.5, dated Feb. 19, 2014, 6 pages.
Notice of Reasons for Rejection and English Translation for corresponding Japanese Application No. 2010-548986, dated Mar. 3, 2014, 5 pages.
Third Office Action issued in Chinese Application No. 200980116004.3 dated Apr. 8, 2014 (with translation).
New Zealand First Examination Report for Application No. 624599 dated May 13, 2014 (2 pages).
Innovation Patent Examination Report No. 2 dated Aug. 8, 2014 in Australian Application No. 2014100361 (5 pages).
D'Souza et al., U.S. Appl. No. 14/447,673, filed Jul. 31, 2014, entitled “Mask System”.
Notice of Opposition to Grant of Patent (Section 21) to New Zealand Patent Application No. 607032, filed Sep. 1, 2014, 7 pages.
Notice of Opposition to Grant of Patent (Section 21) to New Zealand Patent Application No. 622665, filed Sep. 1, 2014, 7 pages.
Notice of Opposition to Grant of Patent (Section 21) to New Zealand Patent Application No. 622666, filed Sep. 1, 2014, 7 pages.
Notice of Opposition to Grant of Patent (Section 21) to New Zealand Patent Application No. 622670, filed Sep. 1, 2014, 7 pages.
Application Under Regulation 168 for Extension of Time in New Zealand Patent Application Nos. 607032, 622666, 622670 and 622665, filed Sep. 1, 2014, 2 pages.
Office Action dated Sep. 17, 2014 in corresponding U.S. Appl. No. 13/747,701 (21 pages).
Amended Notice of Opposition to Grant of Patent filed by Fisher & Paykel Healthcare Limited in New Zealand Patent Application No. 622665 and Statement of Case filed on Oct. 30, 2014 (27 pages).
Amended Notice of Opposition to Grant of Patent filed by Fisher & Paykel Healthcare Limited in New Zealand Application No. 622670 and Statement of Case filed on Oct. 30, 2014 (27 pp.) Patent.
Amended Notice of Opposition to Grant of Patent filed by Fisher & Paykel Healthcare Limited in New Zealand Patent Application No. 607032 and Statement of Case filed on Oct. 30, 2014 (27 pages).
Amended Notice of Opposition to Grant of Patent filed by Fisher & Paykel Healthcare Limited in New Zealand Patent Application No. 622666 and Statement of Case filed on Oct. 30, 2014 (26 pages).
First Examination Report dated Oct. 24, 2014 in New Zealand Application No. 701183 (2 pages).
First Examination Report dated Oct. 21, 2014 in New Zealand Application No. 701136 (1 page).
Notification of the Fourth Office Action dated Oct. 17, 2014 in Chinese Application No. 200980116004.3, with English Translation (16 pages).
Office Action dated Dec. 8, 2014 in U.S. Appl. No. 14/447,673 (12 pages).
6 photos of ResMed S8 Escape flow generator tub and liner, the tub and liner are joined by a chemical bond resulting from co-moulding*.
Japanese Office Action dated Dec. 1, 2014 in Japanese Application No. 2010-548986, with English Translation (8 pages).
Communication dated Jan. 5, 2015 (Extension of Time Granted), with Notice of Opposition filed Dec. 23, 2014, in New Zealand Application No. 624599 (9 pages).
Extended European Search Report dated Jan. 15, 2015 in European Application No. 14182823.6 (6 pages).
IP Australia Official Receipt dated Jan. 19, 2015, with Statement of Grounds and Particulars, filed in Australian Application No. 2009221630 (21 pages).
Office Action dated Feb. 3, 2015 in U.S. Appl. No. 14/447,673 (19 pages).
Communication Pursuant to Article 94(3) EPC dated Feb. 11, 2015 in European Application No. 13 197 251.5 (4 pages).
Extension of Time Granted (1 page) dated Mar. 2, 2015 in New Zealand Application No. 701136, together with a Notice of Opposition to Grant of Patent (Section 21) (8 pages).
Extension of Time Granted (1 page) dated Mar. 2, 2015 in New Zealand Application No. 701183, together with a Notice of Opposition to Grant of Patent (Section 21) (8 pages).
Deadline for Counterstatement (1 page) dated Mar. 27, 2015 in New Zealand Application No. 624599, together with Amended Notice of Opposition to Grant of Patent (Section 21) (9 pages) and Statement of Case (29 pages).
Statutory Declaration of Christopher Earl Nightingale executed Apr. 17, 2015 for submission in the Opposition of Australian Application No. 2009221630 (1 page).
Statutory Declaration of Alistair Edwin McAuley executed Apr. 9, 2015 for submission in the Opposition of Australian Application No. 2009221630 (39 pages).
Second Statutory Declaration of Alistair Edwin McAuley executed Apr. 14, 2015 for submission in the Opposition of Australian Application No. 2009221630 (6 pages).
Third Statutory Declaration of Alistair Edwin McAuley executed Apr. 17, 2015 for submission in the Opposition of Australian Application No. 2009221630 (11 pages).
Statutory Declaration of Troy Alan Baker executed Apr. 16, 2015 for submission in the Opposition of Australian Application No. 2009221630 (36 pages).
Statutory Declaration of Dr. David Maurice Rapoport executed Apr. 2, 2015 for submission in the Opposition of Australian Application No. 2009221630 (45 pages).
Statement of Case dated Apr. 28, 2015 and filed by Fisher & Paykel Healthcare Limited in New Zealand Opposition No. 701136 (14 pages).
U.S. Appl. No. 13/834,189, filed Mar. 2013, Hitchcock et al.
U.S. Appl. No. 13/870,678, filed Apr. 2013, Kwok et al.
Statement of Case dated Apr. 28, 2015 and filed by Fisher & Paykel Healthcare Limited in New Zealand Opposition No. 701183 (13 pages).
Proceeding Correspondence mailed Jun. 17, 2015 in New Zealand Appln. No. 622670 (2 pages).
Proceeding Correspondence mailed Jun. 17, 2015 in New Zealand Appln. No. 607032 (2 pages).
Affirmation of Chun Cui executed Jun. 12, 2015 for submission in the Opposition of New Zealand Application Nos. 607032 (51 pages).
Statutory Declaration of Troy Alan Baker executed Apr. 16, 2015 for submission in the Opposition of New Zealand Application Nos. 607032, 622666 and 622670 (36 pages).
Statutory Declaration of Dr. David Maurice Rapoport executed Apr. 2, 2015 for submission in the Opposition of New Zealand Application Nos. 607032, 622666 and 622670 (46 pages).
Statutory Declaration of Alistair Edwin McAuley executed Apr. 9, 2015 for submission in the Opposition of New Zealand Application Nos. 607032, 622666 and 622670 (38 pages).
Second Statutory Declaration of Alistair Edwin McAuley executed Apr. 14, 2015 for submission in the Opposition of New Zealand Application Nos. 607032, 622666 and 622670 (3 pages).
Patent Examination Report No. 1 dated May 29, 2015 in Australian Application No. 2014218465 (8 pages).
Notice of Reasons for Rejection dated Jun. 30, 2015 in Japanese Application No. 2014-114555, with English Translation (11 pages).
Proceeding Correspondence dated Jul. 20, 2015 in New Zealand Application No. 624599 (4 pages).
Extension of Time Granted dated Oct. 22, 2015 in New Zealand Appln. No. 622666 acknowledging receipt of evidence and amended pleadings filed Oct. 15, 2015 (2 pages).
Extension of Time Granted dated Oct. 22, 2015 in New Zealand Appln. No. 622670 acknowledging receipt of evidence and amended pleadings filed Oct. 15, 2015 (2 pages).
Extension of Time Granted dated Oct. 22, 2015 in New Zealand Appln. No. 607032 acknowledging receipt of evidence and amended pleadings filed Oct. 15, 2015 (2 pages).
Declaration of Haydn Llewellyn dated Sep. 23, 2015 (3 pages), with 1 Exhibit (1 page) relating to the sale of HC431 Full Face Mask filed in New Zealand Appln. Nos. 607032, 622666, 622670, 624599, 701136, 701183, 612787 and 599406.
Second Amended Notice of Opposition to Grant of Patent (Section 21) (clean and marked up) filed Oct. 15, 2015 in New Zealand Appln. No. 622666 (20 pages).
First Amended Statement of Case (clean and marked up) filed Oct. 15, 2015 in New Zealand Appln. No. 622666 (32 pages).
Second Amended Notice of Opposition to Grant of Patent (Section 21) (clean and marked up) filed Oct. 15, 2015 in New Zealand Appln. No. 622670 (20 pages).
First Amended Statement of Case (clean and marked up) filed Oct. 15, 2015 in New Zealand Appln. No. 622670 (36 pages).
Third Statutory Declaration of Alastair Edwin McAuley dated Oct. 15, 2015 and filed in New Zealand Appln. No. 622670 (22 pages).
Second Amended Notice of Opposition to Grant of Patent (Section 21) (clean and marked up) filed Oct. 15, 2015 in New Zealand Appln. No. 607032 (22 pages).
First Amended Statement of Case (clean and marked up) filed Oct. 15, 2015 in New Zealand Appln. No. 607032 (43 pages).
Third Statutory Declaration of Alastair Edwin McAuley dated Oct. 15, 2015 and filed in New Zealand Appln. No. 607032 (20 pages).
Communication pursuant to Article 94(3) EPC dated Nov. 27, 2015 in EP Appln. No. 14 182 823.6 (5 pages).
Deadline for Applicant to File Evidence dated Nov. 17, 2015 in New Zealand Appln. No. 607032 (2 pages).
Deadline for Applicant to File Evidence dated Nov. 17, 2015 in New Zealand Appln. No. 622666 (2 pages).
Deadline for Applicant to File Evidence dated Nov. 17, 2015 in New Zealand Appln. No. 622670 (2 pages).
Third Amended Notice of Opposition to Grant of Patent (marked up and clean) filed Nov. 16, 2015 in New Zealand Appln. No. 607032 (20 pages).
Second Amended Statement of Case 607032 (40 pp.) (marked up and clean) filed Nov. 16, 2015 in New Zealand Appln. No. 607032 (40 pages).
Affirmation of Nicola Jane Kahn with Exhibits NJK-1 to NJK-4 dated Nov. 6, 2015 for New Zealand Appln. No. 607032 (17 pages).
Second Affirmation of Nicola Jane Kahn Exhibits NJK-5 to NJK-7 dated Nov. 13, 2015 for New Zealand Appln. No. 607032 (7 pages).
Statutory Declaration of John Dominic Simpson with Exhibits JDS-1 to JDS-13 dated Nov. 11, 2015 for New Zealand Appln. Nos. 622666, 622670, 607032, 624599, 701136 and 701183 (48 pages).
Statutory Declaration of Christopher Bryn Sparks dated Nov. 11, 2015 for New Zealand Appln. Nos. 622666, 622670, 607032, 624599, 701136 and 701183 (2 pages).
Fourth Statutory Declaration of Alastair Edwin McAuley with Exhibit AM-3 dated Nov. 11, 2015 with Exhibit AM-3 for New Zealand Appln. No. 607032 (23 pages).
Statutory Declaration of Gregory James Olsen with Exhibits GO-1 and GO-2 dated Nov. 16, 2015 for New Zealand Appln. No. 607032 (7 pages).
Third Amended Notice of Opposition to Grant of Patent (marked up and clean) filed Nov. 16, 2015 in New Zealand Appln. No. 622666 (18 pages).
Second Amended Statement of Case (marked up and clean) filed Nov. 16, 2015 in New Zealand Appln. No. 622666 (16 pages).
Affirmation of Nicola Jane Kahn with Exhibits NJK-1 to NJK-4 dated Nov. 6, 2015 for New Zealand Appln. No. 622666 (16 pages).
Second Affirmation of Nicola Jane Kahn Exhibits NJK-5 to NJK-7 dated Nov. 13, 2015 for New Zealand Appln. No. 622666 (7 pages).
Third Statutory Declaration of Alastair Edwin McAuley dated Nov. 16, 2015 for New Zealand Appln. No. 622666 (28 pages).
Third Amended Notice of Opposition to Grant of Patent (marked up and clean) filed Nov. 16, 2015 in New Zealand Appln. No. 622670 (18 pages).
Second Amended Statement of Case (marked up and clean) filed Nov. 16, 2015 in New Zealand Appln. No. 622670 (34 pages).
Affirmation of Nicola Jane Kahn with Exhibits NJK-1 to NJK-4 dated Nov. 6, 2015 for New Zealand Appln. No. 622670 (16 pages).
Second Affirmation of Nicola Jane Kahn Exhibits NJK-5 to NJK-7 dated Nov. 13, 2015 for New Zealand Appln. No. 622670 (7 pages).
Fourth Statutory Declaration of Alastair Edwin McAuley with Exhibit AM-3 dated Nov. 16, 2015 for New Zealand Appln. No. 622670 (15 pages).
Proceeding Correspondence dated Jan. 8, 2016 in New Zealand Application No. 701136 (2 pages).
Extension of Time Granted dated Jan. 7, 2016 in New Zealand Application No. 701183 (2 pages).
First Amended Notice of Opposition to Grant of Patent (marked up and clean) filed Dec. 21, 2015 and filed in New Zealand Application No. 701136 (16 pages).
First Amended Statement of Case (marked up and clean) filed Dec. 21, 2015 and filed in New Zealand Application No. 701136 (28 pages).
Affirmation of Nicola Jane Kahn with Exhibits NJK-1 to NJK-22 dated Dec. 14, 2015 filed in New Zealand Appln. Nos. 701136 and 701183 (51 pages).
Statutory Declaration of David Maurice Rapoport with Exhibit DMR-1 dated Dec. 15, 2015 filed in New Zealand Appln. Nos. 701136 and 701183 (47 pages).
Statutory Declaration of Troy Alan Baker with Exhibit TAB-1 dated Dec. 22, 2015 filed in New Zealand Appln. Nos. 701136 and 701183 (38 pages).
Second Statutory Declaration of Alastair Edwin McAuley with Exhibits AM-3 to AM-5 dated Dec. 17, 2015 (103 pages).
Extension of Time Granted dated Mar. 9, 2016 in NZ Application No. 701136 (2 pages).
Statutory Declaration of Michael George Richardson dated Feb. 18, 2016 filed in New Zealand Appln No. 701136 (11 pages).
Statutory Declaration of Gregory James Olsen dated Feb. 26, 2016 filed in New Zealand Appln Nos. 701136 and 701183 (7 pages).
Statutory Declaration of Arthur Lucian Howden Roberts dated Feb. 26, 2016 filed in New Zealand Appln Nos. 701136 and 701183 (44 pages)
Affirmation of Nicola Jane Kahn dated Feb. 26, 2016 filed in New Zealand Appln No. 701136 (15 pages).
Evidence Correspondence dated Mar. 15, 2016 in New Zealand Application No. 701136 (3 pages).
Second Amended Notice of Opposition dated Mar. 14, 2016 in New Zealand Application No. 701136 (tracked and clean) (19 pages).
Second Amended Statement of Case dated Mar. 14, 2016 in New Zealand Application No. 701136 (tracked and clean) (36 pages).
Fourth Statutory Declaration of Alastair Edwin McAuley dated Mar. 11, 2016 in New Zealand Application No. 701136 (94 pages).
Communication issued in related European Application No. 14 182 823.6 dated Nov. 27, 2015 (5 pages).
Second Statutory Declaration of Arthur Lucian Howden Roberts dated Mar. 10, 2016 in New Zealand Application Nos. 701136 and NZ 701183 (11 pages).
Second Statutory Declaration of Christopher Bryn Sparks dated Mar. 1, 2016 in New Zealand Application Nos. 701136 and NZ 701183 (1 page).
Second Statutory Declaration of Gregory James Olsen dated Mar. 4, 2016 in New Zealand Application Nos. 701136.and NZ 701183 (7 pages).
Opponent's Evidence dated Mar. 14, 2016 for New Zealand Appln No. 701136 (1 page).
Alastair Edwin McAuley Exhibit Note 6, referred to in the Fourth Statutory Declaration of Alastair Edwin McAuley dated Mar. 11, 2016 filed in New Zealand Appln No. 701136 (16 pages).
Alastair Edwin McAuley Exhibit Note 7, referred to in the Fourth Statutory Declaration of Alastair Edwin McAuley dated Mar. 11, 2016 filed in New Zealand Appln No. 701136 (18 pages).
Alastair Edwin McAuley Exhibit Note 8, referred to in the Second Statutory Declaration of Alastair Edwin McAuley dated Mar. 11, 2016 filed in New Zealand Appln No. 701136 (26 pages).
Statutory Declaration of Gregory James Olsen dated Mar. 4, 2016 filed in New Zealand Appln Nos. 701136 and 701183 (7 pages).
Application for Extension of Time to Mar. 29, 2016 in NZ Application No. 701136 (2 pages).
Fifth Statutory Declaration of Alastair Edwin McAuley dated Mar. 22, 2016 in New Zealand Application No. 701136 (1 page).
Extension of Time Granted dated Apr. 13, 2016 and Application for Extension of Time dated Apr. 12 2016 in New Zealand Application No. 701183 (4 pages).
Second Affirmation of Nicola Jane Kahn dated Apr. 12, 2016 in New Zealand Application No. 701183 (8 pages).
Second Statutory Declaration of Alastair Edwin McAuley dated Apr. 11, 2016 in New Zealand Application No. 701183 (148 pages).
Deadline for Applicant to File Evidence dated Apr. 27, 2016 in New Zealand Application No. 701136 (2 pages).
Amended Notice of Opposition to Grant of Patent (marked up and clean) filed Apr. 27, 2016 and filed in New Zealand Application No. 701136 (18 pages).
Amended Statement of Case (marked up and clean) filed Apr. 27, 2016 and filed in New Zealand Application No.701136 (32 pages).
Third Affirmation of Nicola Jane Kahn filed Apr. 26, 2016 and filed in New Zealand Application No. 701136 (5 pages).
Third Statutory Declaration of Alastair Edwin McAuley filed Apr. 26, 2016 and filed in New Zealand Application No. 701136 (117 pages).
Third Statutory Declaration of Arthur Lucian Howden Edwards filed Apr. 21, 2016 and filed in New Zealand Application No. 701136 (24 pages).
Proceeding Correspondence dated Jun. 2, 2016 filed in New Zealand Application No. 701136 (1 page).
Second Amended Notice of Opposition to Grant of Patent (Section 21) in New Zealand Application No. 701136 (9 pages).
Puritan Bennett, “Breeze SleepGear User's Guide”, Nellcor Puritan Bennett Inc., www.puritanbennett.com, (2007) (16 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00061, dated Oct. 12, 2016 (104 pages).
Affidavit of Christopher Butler, Ultra Mirage Brochure (Ultra Mirage) in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00061, dated Sep. 6, 2016 (9 pages).
Affidavit of Christopher Butler, FlexiFit Instructions (FlexiFit) in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00061, dated Sep. 6, 2016 (23 pages).
Declaration of Jason Eaton, P.E. in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00061, dated Oct. 11, 2016 (136 pages).
Malloy, Robert A., Plastic Part Design for Injection Molding: An Introduction, pp. 336-345 (Hanser Gardner Publications, Inc., 1994) (14 pages).
Declaration of Fiona Cresswell in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v.Resmed Limited, Case No. IPR2017-00061, dated Sep. 21, 2016 (29 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, dated Oct. 12, 2016 (106 pages).
Affidavit of Christopher Butler, Ultra Mirage Brochure (Ultra Mirage) in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, dated Sep. 6, 2016 (9 pages).
Affidavit of Christopher Butler, FlexiFit Instructions (FlexiFit) dated in Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, dated Sep. 6, 2016 (23 pages).
Declaration of Jason Eaton, P.E. in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, dated Oct. 11, 2016 (130 pages).
Declaration of Fiona Cresswell, in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00062, dated Sep. 21, 2016 (29 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00064, dated Oct. 12, 2016 (102 pages).
Declaration of Jason Eaton, P.E. in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00064, dated Oct. 11, 2016 (133 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00065, dated Oct. 12, 2016 (136 pages).
Declaration of Jason Eaton, P.E. in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00065, dated Oct. 11, 2016 (176 pages).
Affidavit of Christopher Butler, Ultra Mirage Brochure (Ultra Mirage) in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00065, dated Sep. 6, 2016 (9 pages).
Affidavit of Christopher Butler, FlexiFit Instructions (FlexiFit) dated in Petition for Inter Partes Review of U.S. Pat. No. 9,119,931, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00065, dated Sep. 6, 2016 (23 pages).
Notification of the First Office Action issued in related Chinese Application No. 2015103415970 with English Translation, dated Dec. 30, 2016 (15 pages).
Notification of the First Office Action issued in related Chinese Application No. 201510341599.X with English Translation, dated Dec. 29, 2016 (7 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,027,556, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00501, dated Dec. 16, 2016 (130 pages).
Declaration of Richard Lordo, P.E. in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,027,556, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00501, dated Dec. 16, 2016 (192 pages).
Petition for Inter Partes Review of U.S. Pat. No. 9,027,556, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00504, dated Dec. 16, 2016 (133 pages).
Declaration of Richard Lordo, P.E. in Support of Petition for Inter Partes Review of U.S. Pat. No. 9,027,556, Fisher & Paykel Healthcare v. Resmed Limited, Case No. IPR2017-00504, dated Dec. 16, 2016 (194 pages).
Sixth Statutory Declaration of Alastair Edwin McAuley filed Nov. 2, 2016 and filed in New Zealand Application No. 701136 (9 pages).
Statutory Declaration of Daniel Anthony Hearn filed Sep. 13, 2016 and filed in New Zealand Application No. 701136 (6 pages).
Notification of the First Office Action issued in related Chinese Application No. 201510342347.9, with English Translation, dated Sep. 28, 2016 (24 pages).
Examination Report—Communication Purusant to Article 94(3) EPC issued in corresponding European Application No. 14 182 823.6-1662 dated Dec. 7, 2016, 4 pages.
Fourth Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats dated Dec. 19, 2016 in New Zealand Application No. 607032 (16 pages).
Fourth Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats dated Dec. 23, 2016 in New Zealand Application No. 701183 (15 pages).
Fourth Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats dated Dec. 23, 2016 in New Zealand Application No. 701136 (17 pages).
Sixth Statutory Declaration of Alastair Edwin McAuley filed Nov. 2, 2016 in New Zealand Application No. 701136 (9 pages).
Statutory Declaration of Daniel Anthony Hearn filed Sep. 13, 2016 in New Zealand Application No. 701136 (6 pages).
Fourth Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats filed Dec. 23, 2016 in New Zealand Application No. 622666 (16 pages).
Third Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats filed Sep. 1, 2016 in New Zealand Application No. 701136 (18 pages).
Third Amended Statement of Case marked-up and clean formats filed Sep. 1, 2016 in New Zealand Application No. 701136 (32 pages).
Second Amended Notice of Opposition to Grant of Patent (Section 21) marked-up and clean formats filed Jan. 17, 2017 in related New Zealand Application No. 624599 (16 pages).
Proceeding Correspondence dated Nov. 23, 2017 in New Zealand Application No. 622666 (1 page).
Fifth Statutory Declaration of Alastair Edwin McAuley dated Nov. 15, 2017 and filed in New Zealand Application No. 622666 with Exhibits AM-25 to AM-37 (352 pages).
Statutory Declaration of Jessica Michele Vranjes dated Nov. 10, 2017 and filed in New Zealand Application Nos. 622666, 622670, 607032, 624599, 612787, 701136 and 701183, with Exhibit JV-1 (8 pages).
EP Communication from the Board of Appeals mailed Nov. 15, 2019 (1 page), with Letter of the Opponent dated Oct. 28, 2019 (36 pages), with Exhibit D34 Affidavit of Robert Malloy, Ph.D. (11 pages) and Exhibit D35 Affidavit of John Shi-Nash (27 pages), total 75 pages.
Notification of the First Office Action dated Dec. 30, 2019 in Chinese Application No. 2018100740697, with English translation (24 pages).

Related Publications (1)

	Number	Date	Country
	20170043113 A1	Feb 2017	US

Provisional Applications (3)

Number	Date	Country
61136617	Sep 2008	US
61071893	May 2008	US
61064406	Mar 2008	US

Continuations (3)

	Number	Date	Country
Parent	13964280	Aug 2013	US
Child	15335684		US
Parent	13745077	Jan 2013	US
Child	13964280		US
Parent	12736024		US
Child	13745077		US

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