The disclosure relates to the technical field of medical devices, and in particular, to a clean medical device case.
Medical devices used by physicians to view the interior of a patient's body include various instruments such as arthoscopes, bronchoscopes, colonoscopes, colposcopes, cystocscopes, esophagoscopes, gastroscopes, laprascopes, laryngoscopes, neuroendoscopes, proctoscopes, sigmoidoscopes, and thoracoscopes. These medical scope devices may be used in operating rooms and similar medical environments both inside a traditional hospital setting and outside a traditional hospital setting, such as on a battlefield.
Medical scope devices (and similar devices) are required to be cleaned or sterilized between usage, and stored in a clean environment before use. These devices may also be highly expensive and prone to damage during shipping, usage, and cleaning. Notably, known devices and methods for protecting the devices are unable to provide a clean environment to the medical device. These known devices and methods are likewise unable to provide for safe and secure protection of the device during transit and use.
Today's laryngoscopes can cost over of $5,000 a piece. It is estimated that approximately 3-4% of these devices are damaged in the operating room every year. The shape and many components that comprise a medical device may also prevent the medical device from assuming a stable position on an operating table. Often, the medical device may be knocked to the floor from the operating table. Medical devices such as laryngoscopes may be difficult to repair, due at least in part to the unique shape of the device and the many components associated with it (i.e., battery, computer, monitor, etc.).
Furthermore, the medical devices used in the operating room must remain clean after cleaning in order to minimize the patient's exposure to dangerous infections. To do this, medical devices are currently enclosed within a sealed plastic bag after sterilization and then stored within the sealed plastic bag in the operating room. When the medical device is required for use, the medical device may be removed from the sealed plastic bag and placed on the operating table. However, the sealed plastic bag provides little to no protection to the enclosed medical device against damage due to transportation, storage and handling by hospital personnel. Furthermore, the plastic bag may not remain sterile if damaged. For example, these bags are easily pierced thereby forfeiting any sterile protection. For that reason, storing medical scope devices in plastic bags is discouraged by infection control specialists.
Accordingly, there is a need to provide a protective environment capable of transporting, storing, and/or using a medical device. Additionally, there is a need to provide a sterile environment for the medical device. Furthermore, as the medical device may need to be used in various medical environments including nontraditional battlefield locations, there is a need for the protective equipment to be both sterile and ambulatory.
The following describes preferred embodiments of a clean medical device case that is designed and shaped to protect a medical device from damage, for example during transportation and use. Contemporaneously, the clean medical device case provides an environment that allows the medical device to be cleaned and sterilized, and remain sterilized while stored. These and other benefits will be apparent based on the following description.
In one embodiment, a clean medical device case includes an outer frame, an insert, and a lid. The insert may include a lip about the perimeter of the insert, and a body region that is configured to hold a medical device. The outer frame may have a first end that is spaced apart from a second end. A first groove may be located along an inner surface of the outer frame dividing the outer frame into an upper portion and a lower portion. The first groove may be configured to engage with the lip of the insert. A second groove may be located along an upper portion of the inner surface of the outer frame proximate the first end of the outer frame. The lid may be configured to releasably attach to the outer frame by engaging with the second groove. In one embodiment, the inner surface of the upper portion of the outer frame, the body region of the insert, and an interior surface of the lid may form a sterile environment.
In one embodiment, a clean medical device case includes an upper section hingedly connected to a lower section. The upper and lower sections may form a seal when the upper and lower sections are pivoted towards each other. An insert may be embedded within the lower section. The insert may be configured to hold a medical device. The inner surface of the upper section, the insert, and an upper portion of the lower section may form a sterile environment.
In one embodiment, a clean medical device case is manufactured by forming an insert through injection molding or a similar process. The insert comprises cavities sized to snugly hold a medical device. Four panels of an outer frame are also formed having an inside groove or channel sized to accept a lip of the insert. Adhesive is then optionally applied to the insert lip/panel groove interface (either on the insert or within the groove), and the panels are joined to the insert so that the insert's lip fits into the panel groove. The panels may then be clamped in place and welded together at their ends. The top circumference of the insert may additionally be adhered or caulked to the insides of the panels for additional protection from contamination. Optionally, a base panel may be joined to the bottom of the case and welded or adhered into place. One or more of the side panels further comprise a locking mechanism and groove or other means on their top portion configured to both accept a lid and lock it into a closed position.
In one embodiment, the clean medical device case may be manufactured using injection molding. Injection molding may allow for greater uniformity and consistency with standardized protocols. In one embodiment the outer frame and other components of the clean medical device may be made of thermoplastic acrylic-polyvinyl chloride materials such as those sold under the trademark Kydex®, or other like materials. In one embodiment, the use of Kydex® may eliminate the need for plastic welding. In such an embodiment, the components may be assembled using an adhesive or glue.
In one embodiment, a clean medical device case is manufactured by creating an insert configured to snugly hold a medical device, engaging and adhering the insert to a first groove of an outer frame comprising one or more panels and a first portion of a locking mechanism, welding the insert and outer frame such that the insert is embedded within the outer frame, creating a lid having a second portion of the locking mechanism, engaging the lid with the second groove of the outer frame, wherein the lid is held in place with respect to the outer frame when the first portion of the locking mechanism is engaged with the second portion of the locking mechanism.
In one embodiment, a medical device case is sterilized by removing the contents of the medical device case, filling a receptacle with a cleaning agent, immersing the medical device case in the cleaning agent, soaking the medical device case in the cleaning agent for a first time, agitating the medical device case within the cleaning agent, filling a second receptacle with a rinse solution, immersing the medical device case in the rinse solution such that the cleaning agent is removed from the medical device case, and drying the medical device case.
For a further understanding of the nature and objects of the present invention, reference should be made to the following detailed description, taken in conjunction with the accompanying drawings, in which like elements are given the same or analogous reference numbers and wherein:
A clean or sterile medical device case is described herein. The clean or sterile medical device case is able to provide a protective environment while transporting, storing, and/or using a medical device. Notably, the interior of the clean or sterile medical device case is sterile. Additionally, the clean or sterile medical device case may be portable. As used herein the word “sterile” may refer to an area that is free from bacteria or other living microorganisms.
An embodiment of the clean medical device case is illustrated in
The components illustrated in
A second groove 121 may be located along an upper portion 119A of the inner surface 119 of the outer frame 101 proximate the first end 113 of the outer frame 101. The lid 105 may be configured to releasably attach to the outer frame 101 by engaging with the second groove 121. The lid 105 may be engaged to the outer frame 101 by mating a locking component 125B (see
In one embodiment, the lid may be separable and independent from the outer frame. Accordingly, the lid may not be connected to the outer frame via a cord or lanyard. Instead, the lid may be attached to the outer frame and locked in place using a stainless steel spring loaded barrel lock, or other fastening or locking means generally known in the industry.
In one embodiment, components of the clean medical device case 100 may form one or more sterile environments. A first sterile environment may be formed in the volume enclosed by the top surface of the insert 103, interior surface of the lid 105 (i.e., the surface configured to face the insert when the lid is engaged with the outer frame 101), and the surface formed by the upper portion 119A of the outer frame 101. A second sterile environment may be formed in the volume enclosed by the bottom surface of the insert 103, the surface formed by the lower portion 119B of the outer frame 101, and a fifth panel 135.
The outer frame 101 may substantially surround the insert 103 (discussed in further detail with regards to
In one embodiment, the outer frame 101 may form a substantially rectangular box with an open top surface. The outer frame may be constructed from five separate panels. As will be discussed below, the panels of the outer frame 101 may be configured to align with and form a layer around the sides and bottom of the insert 103. The outer frame 101 may include two long side panels 127A, 127B that extend parallel to each other and may be separated by the width of the insert 103. A first end of each of the two long side panels 127A, 127B may terminate at a rear short side panel 129 located at a first end of the clean medical device case. A second end of the two long side panels 127A, 127B may terminate at a front short side panel 131 that is located at a second end of the clean medical device case. One of the two ends of the clean medical device case may be proximate to a locking mechanism 125A.
Each of the two long side panels 127A, 127B and the rear short side panel 129 may be constructed to have a height that is greater than the height of the insert. The two long side panels 127A, 127B may be constructed so that each has a length longer than that of the insert, for example by twice the thickness of the outer frame 101 material (discussed below). The rear short side panel 129 may be constructed to have a length that is corresponding to the width of the insert. The front short side panel 131 may be constructed to have a length that corresponds to the width of the insert and a height that is less than the height of the other lateral panels (the two long side panels 127A, 127B, and the rear short side panel 129). The front short side panel 131 may play a role in securing a lid to the outer frame (discussed below).
In one embodiment, the outer frame may also include a fifth panel 135 having dimensions such that the fifth panel has an area exceeding the area of the insert 103. In particular, in one embodiment, the fifth panel 135 may have a length corresponding to that of the insert 103 plus, for example, the thickness of the front short side panel 131 and the thickness of the rear short side panel 129. Additionally, the fifth panel 135 may have a width corresponding to that of the insert 103, plus, for example, the thickness of the two long side panels 127A, 127B. The fifth panel 135 may form the base of the outer frame. In one embodiment, the fifth panel 135 may be oversized to facilitate the sealing of the insert 103 within the outer frame 101, and the welding of the panels that make up the outer frame 101 (127A, 127B, 129, 131) with respect to each other. In one embodiment, where the outer frame 101 is constructed from HDPE, the outer frame may have a weight of about 300-600 grams.
The four panels (the two long side panels 127A, 127B, the rear short side panel 129, and the front short side panel 131) that form the lateral sides of the outer frame 101 may each include a first groove that recesses from the panel and is positioned to be on the inner surface of the outer frame. The groove on each respective panel may be positioned so that it aligns with the lip of the insert (discussed below) and with the grooves on each of the other panels 135. The groove may be configured to receive a portion of the lip of the insert. The groove may divide the inner surface 119 of the outer frame 101 into an upper portion 119A and a lower portion 119B. Notably, the upper portion 119A of the inner surface 119 of the outer frame 101 may be used to provide a sterile environment to a medical device. The lower portion 119B of the inner surface 119 of the outer frame 101 may also be used to provide a second sterile environment.
In one embodiment, the outer frame may have a second groove 121 that spans the inner surface 119 of the outer frame 101. The second groove 121 may recess from all three of the lateral panels (the two long side panels 127A, 127B, and the rear short side panel 129). The second groove 121 on each respective panel may be positioned so that they align with each other 133. The second groove 121 may be located along the upper portion 119A of the inner surface 119 of the outer frame 101 at a position that is at the height of the front short side panel 131. The second groove 121 may be configured to hold a lid 105. In one embodiment the second groove 121 configured to engage with a lid 105 may be placed such that there is a space of approximately 0.8 mm between the peak of the medical device held by the insert 103 and the lid 105. In one embodiment, the lid 105 may engage with the second groove 121 in a substantially sliding motion until the end of the lid 105 not having the locking mechanism is in contact with and seated in the rear short side panel 129.
In one embodiment, the lid 105 is also constructed from HDPE having a thickness of approximately 6.35 mm, although it is envisioned that any suitable materials and thickness may be used. The lid 105 may include a locking component 125B. The locking component 125B may be configured to mate with a receiving component 125A located on the outer frame 101. In the embodiment depicted in
Although an embodiment of the locking mechanism including a lanyard, pin, and corresponding apertures on an outer frame 101 are depicted, it is contemplated that any suitable alternatives may be used. For example, in one embodiment the locking mechanism may include a safety-pin-like configuration. In another embodiment, the lanyard may be optional. In yet another embodiment, excess plastic material may be located in an interior corner of the outer frame 101 immediately below the second groove 121. The excess plastic material may include an aperture that is configured to line up with a corresponding aperture located along the lid 105. A pin may be inserted in a generally vertical motion through the aperture on the lid into the aperture in the excess plastic material. In the illustrated embodiment, the components of the locking component are composed of stainless steel. However, alternative materials and locking mechanisms may be used, such as, for example, acrylic glass and bolts, latches, and the like. It may be beneficial to use materials that can withstand the cleaning protocol described below.
In one embodiment, where the lid 105 is constructed from HDPE and the locking mechanism is constructed from stainless steel, the lid 105 assembly may have a weight of about 100-200 grams for the HDPE portions of the lid 105.
The one or more support members 305 that extend generally perpendicular from the top surface 301 of the insert 300 are illustrated in the first side view depicted in
The top surface 301 of the insert 300 may also include a lip 303 that extends outwards along the perimeter of the top surface 301. As will be discussed below, in one embodiment, the lip 303 engages with a groove on the inside of the outer frame. In one embodiment, the lip 303 has a height 315A of approximately 6.6 mm along the direction perpendicular to the top surface 301 of the insert. In one embodiment, the total height 313A of the insert 300 may be approximately 60.3 mm. In one embodiment, the total width 313B of the top surface 301 of the insert 300 may be approximately 92.3 mm In one embodiment, the lip may have a width 315B of approximately 3.3 mm such that it extends approximately 3.3 mm outwards from the perimeter of the top surface 301. In one embodiment, the insert 300 may have a length 313C of approximately 220.9 mm. Although example dimensions are provided, it is contemplated that any dimensions suitable to construct an insert that holds a medical device may be used.
Each of the one or more support members 305 may have a first end located at the base of a cavity 307 or the top surface 301 of the insert 300. The second ends 311 of the one or more support members 305 may be located a distance away from the top surface and form a base for the insert. The support members 305 may provide structure and rigidity to the insert 300. The support members 305 may assist in holding the medical device in place and preventing the clean medical device case from being dislodged. Although support members 305 illustrated in
As illustrated in
In one embodiment, the components of the insert 300 comprise separate pieces that are fused together to form a single insert. Alternatively, the components of the insert 300 may be manufactured as a single piece through injection molding or a similar process.
The insert 300 may be constructed from silicone, plastic, or any other materials suitable for sterilization in accordance with the protocols discussed below. In one embodiment, the insert may be constructed by first constructing a negative mold of the medical device. In a second step, an injection molding system that utilizes the negative mold may construct the insert 300 such that the top surface 301 of the insert conforms to the shape of the medical device as depicted by the negative mold. Alternatively, the one or more components of the insert 300 may be 3D printed. In one embodiment, the insert 300 is constructed from a two component silicone elastomer such as BLUESIL™ RTV 3040A (manufactured by BlueStar Silicones, York, S.C.) and the insert 300 is injection molded by SilcoTech (York, S.C.).
In one embodiment, the silicone insert has a weight of approximately 1000 grams.
As illustrated at least in
In one embodiment, the grooves on each of the lateral panels that make up the first groove 117 on the inner surface 119 of the outer frame 101 may each have an opening that faces the interior of the outer frame 101 that is smaller than the height of the lip 303 of the insert 103, 300. In such an embodiment, the insert 103, 300 may be semi-flexible such that it can be squeezed into the first groove 117. Once placed within the first groove 117, the lip 303 of the insert 103, 300 may then expand, such that the insert 103, 300 cannot be removed from the outer frame 101. In one embodiment, an adhesive may be applied to the lip 303 of the insert 103, 300 prior to its insertion into the first groove 117 of the outer frame 101. Alternatively, or additionally, adhesive may be applied to the first groove 117 of the outer frame 101. For example, a silicone adhesive capable of affixing HDPE to silicone may be used between the lip 303 of the insert 103, 300 and the first groove 117 of the outer frame 101.
The outer frame 101 may be manufactured around the insert 103, 300. In one embodiment each of the separate lateral panels (described above, see two long side panels 127A, 127B, rear short side panel 129, and front short side panel 131) may be aligned with corresponding portions of the insert 103, 300. Optionally, an adhesive may be applied to the space between the panels and the insert such as, for example, a suitable glue, epoxy, silicone adhesive, or the like. For example, a silicone adhesive capable of affixing HDPE to silicone may be used between the panels and the insert. Similarly, a silicone adhesive of affixing HDPE to HDPE may be applied between adjacent panels.
In one embodiment, the adhesive may form an additional sealant layer between the insert and outer frame thereby contributing to maintaining a sterile area for the medical device. The same adhesive or a second adhesive may be applied to the space between each of the panels. Suitable adhesives for bonding the outer frame to the insert may include solvent-free, acrylic-based, structural adhesives. One or more clamps may be used to hold the panels in place with respect to the insert and/or the other panels while the adhesive is applied and/or the panels are welded together.
Using a welding process, the adhesive may be heated such that the panels that form the outer frame are fixed with respect to its adjacent panels. As the outer frame is constructed around the insert, there is minimal to no space between the insert and the outer frame. The outer frame may be constructed around the insert in a two-step process. In a first step, the lateral panels of the outer frame (the two long side panels 127A, 127B, the rear short side panel 129, and the front short side panel 131) may be welded to each other while being clamped to each other and/or to the insert. In a second step, the fifth panel 135 may be welded to the lateral panels of the outer frame. Accordingly, there is minimal to no space for non-sterile particulates including bacteria, viruses, protozoa, and the like to reside.
The welding process helps keep the area that houses the medical device 111 sterile from outside contaminants by eliminating, or substantially eliminating, voids in-between the panels. However, other suitable joining means may be used to assemble clean medical device case 100 as long as the internal cavity can remain sterile from outside contaminants entering through voids created by the joining process. For example, in one embodiment, flame etching may be used by igniting propane gas and using the flame to heat the plastic to align molecules on the plastic panels before attaching them together with adhesive.
In one embodiment, the welding process may include a plastic injection welding process. A plastic injection welding process may include the steps of placing a softened piece of plastic material such as polypropylene in the cavity formed between the two or more panels. The area may be heated to form a cohesive bond between the panel, poplypropylene and second piece (i.e., panel or insert). Alternative welding methods including extrusion welding and hot gas welding, may be used. Some of the gases used in the welding process may include, for example, shielding gases such as carbon dioxide, argon, helium, fuel gases such as acetylene, propane, butane, and oxygen mixtures.
In one embodiment, caulking or a sealant may be applied about the perimeter formed by the top surface of the insert 103, 300 near the first groove 117 of the outer frame 101 in order to provide additional sealing and protection of the lower sterile compartment.
While an insert that is non-removably embedded within the outer frame is described, it is contemplated that in some embodiments, the insert may be removable from the outer frame.
The clean medical device case illustrated in
An ambulatory embodiment of a clean medical device case is illustrated in
The insert 807 may be constructed in accordance with the methods and materials described above. For example, the insert 807 may include one or more cavities 813 configured to conform to the shape of a medical device. The insert 807 may contain additional cavities configured to hold items that are beneficial for an ambulatory device such as extra parts and batteries for the medical device. The insert 807 may be manufactured from silicone by injection molding. Alternative materials and processes may be used.
The insert 807 may include two layers. A first layer composed of form-fitting plastic (such as HDPE) may be covered by a second layer composed of silicone. The silicone may have a thickness between about 5-6 mm. Alternative thickness may also be used. The first layer and the second layer may be joined together by adhesives or other means to ensure sterility between the two component parts.
Although a hinged connection is illustrated in
Similar to the process described above with respect to a first embodiment of the clean medical device case, the upper 801 and lower 805 sections of the clean medical device case 800 may be manufactured from HDPE in multiple panels. The panels may be shaped to conform to the surfaces formed by the insert 807. The panels may be clamped, and welded to the shape of the insert 807. The clean medical device case described in the embodiments above may be cleaned using a wiping method and/or a soaking method.
In a wiping method, first the medical device and any related accessories may be removed from the clean medical device case. Then, a cloth may be dampened with a cleaning agent. The cleaning agent may include, for example, mild soap and water, 70% isopropyl alcohol, 3% hydrogen peroxide, 10% chlorine bleach (sodium hypochlorite) prepared within 24 hours, Lysol®, Windex®, Cidex®, CaviCide®, and the like. Then the dampened cloth may be used to wipe all exposed surfaces of the clean medical device case, including the insert and cavities. The cleaned surfaces may then be wiped with distilled water in order to remove any cleaning solution and/or residue. Alternatively, PDI Super Sani-Cloth Wipes® and the like may be used. The clean medical device may then be air-dried or hand-dried using a clean, absorbent, non-shedding lint-free cloth. A clean medical device and its accessories may be placed inside the outer frame of the medical device, the lid may be engaged with the outer frame and then locked. The assembly may be transported and then stored in the proper location.
In a soaking method, first the medical device and any related accessories may be removed from the clean medical device case. A first receptacle may be filled with a cleaning agent. The cleaning agent may include, for example, mild soap and water, 70% isopropyl alcohol, 3% hydrogen peroxide, 10% chlorine bleach (sodium hypochlorite) prepared within 24 hours, Lysol®, Windex®, Cidex®, and CaviCide®. The clean medical device case may be immersed within the first receptacle. The clean medical device case may be immersed in the first receptacle such that any air trapped within the medical device case is dislodged. Then the clean medical device case may be agitated within the solution. A lid may be placed on the receptacle and the medical device case may be soaked for some period of time (e.g., five minutes). After the period of time has elapsed, the medical device case may be removed from the first receptacle and drained before being transported to a second receptacle.
In the second receptacle, the clean medical device case may be rinsed with clean or distilled water. In one embodiment, the clean medical device case may be immersed within the second receptacle. After the medical device case is removed, it may be air-dried or hand-dried using a clean, absorbent, non-shedding lint-free cloth. A clean medical device and its accessories may be placed inside the outer frame of the medical device, the lid may be engaged with the outer frame and then locked. The assembly may be transported and then stored in the proper location. The soaking method may be the preferred method of cleaning the clean medical device case.
Various illustrations of the embodiments of the clean medical device case discussed above are included in
While the present disclosure has been discussed in term of certain embodiments, it should be appreciated that the present disclosure is not so limited. The embodiments are explained herein by way of example, and there are numerous modifications, variations and other embodiments that may be employed that would still be within the scope of the present disclosure.
This application claims the benefit of U.S. Provisional Application No. 62/443,225 filed Jan. 6, 2017, which is incorporated by reference in its entirety.
Number | Date | Country | |
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62443225 | Jan 2017 | US |