The present application provides a placement, stabilization, locating and positioning device for aligning an eye dropper, and a method for improving eye drop application using the device. The device facilitates an alignment wherein the eye drop bottle and bottom of an eye drop supply are disposed relative to a selected eye location, so that the eye drops are applied off of a visual axis drawn from the retina and through the center of the pupil. This enables both one-handed and two-handed dispensing of eye drops from the eye dropper in a manner that facilitates the non-visual alignment of an eye drop device and precludes reflexive blinking by assuring the selected alignment between the eye dropper and the eye, freeing the user from adjusting alignment and allowing the user to focus exclusively on dispensing the liquid from the eye dropper. Dual alignment wells correspond to both eyes so that a single placement of the device provides an alignment without having to reposition the device for each eye. By optimizing eye drop delivery, this device will minimize medication wastage. Contamination is avoided by shielding the eye dropper nozzle from a user's eyes and eyelashes.
Currently in the art there is a need for an eye dropper application apparatus which automatically locates an eye drop dispenser and provides stability in all three directional axes of movement; up and down the height of the eye, side to side over the width of the eye and in and out over and above the surface of the eye.
Presently in the art, apparatus using a nasal bridge saddle as a support do not provide for control about all three axes, are not particularly safe and lack the ability to accommodate both eyes.
Furthermore, there is no apparatus that provides a safer and more functionally reliable device that will preclude reflexive blinking before a drop makes contact with the eye by a user.
Reflexive blinking is influenced by visual clues and tactile sensation. If an object suddenly flies toward the eye, the eyelids will reflexively close at high speed and the head flinches—a reflex to a visual threat without any volitional control. On the other hand, if a blast of air from a jet hits the eye, the eye will reflexively blink even though it cannot see the air coming but the cornea feels the air because of tactile sensation. The design of an eye drop delivery system should be aimed at minimizing contributory factors to reflexive blinking. The user should not see the drop coming and sensation should be minimal upon eye drop contact with the eye. By not seeing the approaching eye drop, the fear of a pending strike is eliminated and thus minimizing reflexive blinking. When the eye drop does make contact with a much less sensitive caruncle, the anxiety for future application is removed, thus enhancing medication compliance.
Gibilsco (U.S. Pat. No. 4,257,417) exists in the art as a nose supported eye dropper holder. However, this apparatus only holds the bottle stable in a side-to-side direction. The holder does not produce any resistance to motion in a towards and away from the eye axis of motion, also called height precision locking. The motion of the eye dropper moving in such a manner may lead to the eye being impacted by the eye dropper and such an impact may be a source of infection or may scratch the surface of the eye. Furthermore, Gibilsco does not contain any discernable means by which up and down motion across the height of the eye may be presented, also called a stability locking mechanism. The lack of up and down stability, combined with the lack of in and out stability could even result in lack of accuracy in the side to side eye direction, as the combination of pulling the eye dropper too high up could also overshoot the iris.
Wood (U.S. Pat. No. 2,676,592) exists in the art as a nose support guide for eye droppers. However, this apparatus only positions the eye dropper over the user's eye and prevents motion only in a side-to-side axis. There is no element within this device that stops the eye dropper from moving in or out relative to the surface of the eye, thus the eye dropper can still impact with the surface of the eye. Further, Wood does not use eye pads or any part to prevent an eye dropper from pivoting in an up and down axis of motion across the height of the eye. Thus, Wood only dampens motion in the back and forth across the width of the eye axis of motion.
Campagna (U.S. Pat. No. 3,934,590) exists in the art as a device that attempts to stabilize an eye drop dispenser through use of a tripod with a pillar that rests on the forehead and another pillar that rests on the cheek. However, it does not provide a precise locator. For such a device to be used on both eyes, the device must be used on one eye and then rotated or flipped for use on the contralateral eye, such that the pillar which originally rested on the forehead over the first eye, upon flipping now rests on the cheek below the contralateral eye, and likewise the pillars that originally rested on the cheek below the first eye upon flipping now rests on the forehead above the contralateral eye. Thus, for the device to be flipped and align properly, the user's forehead and cheek must be of the same distance from the bottle since the pillars are not adjustable. Equally symmetric forehead and cheek dimensions are not typical or prevalent among humans, thus the device is not precise and cannot be flipped for a large portion of the population. Furthermore, the pillars are narrow, relatively pointed shafts and with fixed dimensions. Many users may be reluctant to place two pointed shafts near their eyes for fear of sustaining eye injury. Fear is a major barrier to acceptance and compliance. Because the non-adjustable pillars are of fixed dimension and angle of projection, two pillars may not rest on stable bone but instead on the eyelids. Further still, the device only applies drops to one eye at a time and does not allow the administration of drops to both eyes without reposition and realignment of the device. The Campagna design requires three disparate surfaces for device stabilization—nose, forehead and cheek. In contrast, the subject embodiments have three-point fixation, but only require two surfaces for stabilization—nose and forehead.
There exists a need in the art for an eye dropper holder that first locates precisely and also supports, stabilizes, and holds stationary, an eye dropper in all three of the up-down, side-to-side, and in-out axis, and which may function to accommodate both eyes with a single alignment placement by a user. There is a need for a device that can deliver an eye drop without causing reflexive blinking.
The present application overcomes limitations in the prior art by presenting a new and novel way to enable a person to align and stabilize an eye dropper while applying eye drops to their own eyes in a softer and easier manner. The present application is self locating on the user's face and prevents motion in three directional axes, namely, up and down the face, back and forth across the face and in and out toward the face. The present application also provides two holes for simultaneous eye drop application to both eyes or one eye at a time without moving the platform. The present application also contains a guard to shield the eye dropper nozzle that prevents the eyelash from striking and contaminating the tip of the eye dropper.
The desirable outcome is to optimize precision location of an eye drop application and to minimize wastage. The device offers the advantage of facilitating non-visual alignment of the eye dropper with the eyes, because the device merely has to be placed on the user's face such that the lower nose based support falls on the nasion, where the face and the upper nose join the lower forehead, and which causes the device to be automatically aligned without necessitating any visual input needed to perform alignment. This is a significant distinction because the eyes into which the drops are being placed are the user's visual input sense. Since it is not feasible to put drops into eyes and see at the same time, the ability to perform alignment of an eye dropper to ensure drop delivery without visual input is a feature of the present application. The present application also optimizes efficacy to obtain maximum therapeutic benefit and focused, precise delivery of artificial tears or medication.
One cannot see the eye drop coming because the eye drop delivery is “off visual axis” so the user does not see the drop coming and therefore avoids reflexive blinking. The eye drop dispenser locating apparatus is designed to deliver over the caruncle—a landmark medial to the visual axis.
The present application is usable on both eyes, either singly or simultaneously without flipping the device and does not require a user to place potentially pointed shafts near the eye. The present application may also facilitate bilateral sequential administration of eye drops.
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The preferred embodiment is a delivery platform 200 which is substantially square, wherein the sides 300, 310 are curved inwardly in an arc shape, with the upper edge 320 being similarly curved with a shallower arc. The lower edge 330 takes the form of an arc that is curving outwardly. The upper edge 320 intersects with the sides 300, 310 for two pronounced semi-circle shaped upper cantilevers 340, 350. The lower edge 330 intersect both the sides 300, 310 by means of smaller semi-circle lower cantilevers 360, 370, each of which contain a delivery well 365, 375.
The intersection of each side edge 300, 310 with the lower edge 330 produces two pronounced semi-circle shaped cantilevers 360, 370. These cantilevers each contain a well 365, 375 located such that the center of the semi-circle shaped cantilever and the center of the well are the same point. The wells must pass all the way through the cantilevers in order for the eye dropper to fit and dispense eye drops. A dispensing nozzle of the eye dropper bottle is closely received in the wells 365, 375. Preferably, the wells comprise a nozzle cylinder extending to a vertical limit such that the terminal end of a received bottle nozzle is shielded against any contaminating contact and a dispensed drop may fall through the cylinder without contacting any portion of the inner well of the cylinder. For perspective, the nasal bridge 140 is also shown.
The delivery wells may extend cylindrically in a direction beneath and perpendicular to the delivery platform, toward the user's eye, to form a nozzle cylinder. When an eye drop dispenser is fitted into the delivery well, the tip of the dispenser is contained within the nozzle cylinder. The cylinder prevents the eyelashes from coming in contact with the eye dropper bottle and prevents contamination of the tip of the eye dropper.
A further embodiment of the delivery well is comprised of an inner cylinder and an outer cylinder in order to prevent contamination of the eye drop dispenser. The inner cylinder is tapered, with the upper portion of the well opening on the upper surface of the delivery platform. This opening possesses the largest diameter of the delivery well. The inner cylinder then tapers and becomes narrower as the depth of the well relative to the upper surface of the delivery platform increases. The inner cylinder receives the tip of an eye drop delivery apparatus, surrounding and encompassing the tip of the eye drop delivery apparatus. The outer cylinder is not tapered and exists outside of the inner cylinder, enclosing the inner cylinder. The outer cylinder serves to prevent the eyelash from touching the tip of the eye drop dispenser. An eyelash of a closing or winking eye will strike the outer cylinder instead of striking the tip of the eye drop dispenser because the inner cylinder guards the eye drop dispenser tip. This serves to prevent contamination of the tip of the eye drop dispenser because the contaminant from the eyelash will fall on and be deposited on the outer cylinder instead of falling on the tip of the eye drop dispenser.
The nozzle cylinder accommodates the top or tip of an eye drop dispenser by one of; screw threads in the nozzle cylinder that accommodate the screw thread of an eye dropper bottle, a Morse taper or any other tapered nozzle cylinder that facilitates a frictional fit of an eye dropper bottle tap, or a sliding locking mechanism. Rigidly fixing the eye drop dispenser in place facilitates one-handed application of eye drops by the user.
The delivery platform may also possess a holding spot 380 on the side opposite to the side from which the previously mentioned pillars extend. The holding spot may be a raised portion, a rough portion, an indentation, a protrusion, on any other means which would facilitate placement of a user's finger in order for the user to apply pressure to keep the eye dropper holder in place upon the user's forehead. When the holding spot is an indentation, the indentation may pass all the way through the thickness of the delivery platform, or only partially recessed into the delivery platform. The indentation may be centered in the middle of the delivery platform, or anywhere between an axis running between the two wells and through to the two pillars. The indentation may also be of a particular shape such as, but not limited to a tear drop, a star, a number, letter or other graphical element. The indentation serves the purpose to facilitate a finger such that a user may apply pressure at this specific point to distribute pressure evenly in order to hold the device firmly to the user's face. The indentation may also contain raised letters, engraving, Braille, or a diagram to convey information to the user.
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The nasal bridge 140 sitting on the nose with pads on the side also dampens side-to-side motion away from the nose 900, and toward the nose 910. The bridge pads serve to stabilize the device by dampening motion in a lateral, side-to-side across the face, from ear-to-ear axis of motion because a nasal pad located on the left side of the nose prevents the eyedropper holder 100 from moving to the left, and the nasal pad on the right side of the nose prevents the eye dropper holder from moving to the right. The pads may be somewhat flexible to accommodate different user nose widths at the nasion. Thus, the eye dropper is held in place over a portion of the eye, such as but not limited to the iris, and is prevented from moving to the side of the iris. This stability locking mechanism insures that the drops are applied over the proper section of the eyeball.
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Thus, the ventral aspect of the saddle has a convex surface that conforms to the concave anterior surface of the user's nasal bridge. The wing flap on each side of the saddle conforms to a flat descending surface of the nasal bridge, proceeding in the direction of the medial canthus of each eye. Once the device is placed over the nasal bridge, the form-fitted coupling feature of this component will limit the device's displacement in any direction. Superior displacement of the device along the second contour is set and limited by the descending slope of the mid-forehead between the brows. Inferior displacement of the device is limited by the ascending slope of the nose. Lateral movements are limited by the sides of the nose. The two forehead pillars 340, 350 resting on the flat forehead surface confer added stabilization to the device and prevent tilting of the platform when a bottle is inserted into the delivery well.
Thus, the embodiments comprise a device designed to sit precisely on one part of the nose to assure centration of the delivery well over the medial canthus. A visually-impaired person, by tactile clues, can place the nasal bridge saddle 140 of the device over the nose and feel confident in squeezing the bottle. Likewise, a sighted person can deliver the drop in a pitch-dark environment using this device.
In other words, the subject saddle design conforms to the unique contours to the nasal bridge—a perfect fit like a saddle over the back of a horse. The design molds to the nose and has four-point stabilization—descending slope of the nose at 12 o'clock, ascending slope of the nose at 6 o'clock, and the descending slopes on both sides of the nose at a 3 and 9 o'clock hour. On a side profile, it rests firmly on the depressed contour of the nose—a point that aligns precisely in a horizontal axis with the medial canthus or caruncle. By resting on the saddle pillar on the depressed contour of the nose, it automatically aligns the delivery well over the caruncle—a desirable landmark for eye drop placement.
As the width of noses vary greatly within the diverse size and shape of all people and thus potential users, the nasal bridge may vary in dimension to compensate for this diversity. The nasal bridge may be flexible, made of a material that opens up and spreads widely to accommodate thin and thick nasion widths. The nasal bridge may also be rigid, and come in a variety of sizes and shapes, with varying widths. These various sizes may be provided separately from the delivery platforms in order to allow the users to select the proper width bridge and then attach the proper width bridge to the flat main member. Alternatively, the delivery platform may come for purchase with a variety of width sized bridges, each size packaged with or attached to an individual delivery platform. Finally, one delivery platform may come with a plurality of different width bridges in order to accommodate a plurality of users for the same device, such as a family.
In an alternative embodiment, the nasal bridge may be featured without the nose pads. The nasal bridge may also be interchangeable to accommodate different sized noses, or the nose guard may be made of a flexible material to accommodate different nose sizes. The nasal bridge may also slide in a vertical adjustment manner. Such adjustments may be made to customize the device to an individual user of extreme or extraordinary dimensions.
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A plane passing through the minor axis 1150 of the elliptical delivery platform would bisect both the delivery platform 1105 and the nasal bridge 1140 to produce two chiral symmetric halves 1153, 1157 that would be mirror images of each other, with one nasal pad 1175, 1185 on each of the two halves 1153, 1157. A plane passing through the major axis 1160 and passing through the center of the nasal bridge 1140 would produce two non-symmetric halves 1163, 1167 with both of the nasal pads 1175, 1185 on one half and the nasion portion 1190 of the nasal bridge 1140 on the other half.
Other variants or embodiment of the device 1100 may include a delivery platform 1105 in a shape other than an ellipse including, but not limited to, square, rectangle, triangle, or other oblong shape. The delivery platform 1105 also may be asymmetrical to accommodate a user with eyes at different distances from the nose. The interior surface 1115, 1125 of the delivery wells 1110, 1120 may also assume any form previously presented such as tapered, containing a blade, threaded sides and the like. The degree to which the minor axis 1150 intersects the major axis 1160 axis may be perpendicular, but may also be an angle other than perpendicular.
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The device 1200 may contain only one bracket 1210, or may contain a plurality of brackets 1210, 1220 such as the embodiment illustrated. The brackets may be located on directly opposite sides of the delivery platform 1205 such that the delivery platform is symmetric. The dimensions of the plurality of brackets 1210, 1220 may be the same or may be different in order to accommodate different sized eye dropper bottles. The dimensions such as the length of the bracket sides 1212, 1215 may be the same or may be different. The delivery platform 1205 is mounted atop of the nasal bridge 1240 such that a centrally located holding spot 1230 is located above and on an opposite side of the nasal bridge 1240. An axis passing through the minor axis 1250 and bisecting the device may produce two symmetrical mirror image halves, while an axis passing through the major axis 1260 and bisecting the device may produce two asymmetric halves. The dimensions and shape of the delivery wells 1210, 1220 may vary and may be asymmetrical. The degree to which the minor axis 1250 intersects the major axis 1260 axis may be perpendicular, but may also be an angle other than perpendicular.
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While the present embodiment is oval-shaped, other variants or embodiment of the device may include a delivery platform 1305 in a shape other than an ellipse including, but not limited to, square, rectangle, triangle, or other oblong shape. The delivery platform 1305 also may be asymmetrical to accommodate a user with eyes at different distances from the nose. The interior surface 1315 of the delivery well 1310 may also assume any form previously presented such as tapered, containing a blade, threaded sides and the like.
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In a further embodiment, the edge 2640 of the main platform 200 is now flush into the outer portion of the deliver well 375.
The edge 2640 of the delivery platform 200 is also shown flush 2650 with the side of the delivery well 2620 such that the edge 2640 blends into 2650 the side of the delivery well 2620.
Furthermore, the edge of the delivery platform 2620 which is at the portion of the delivery platform that protrudes above the delivery platform 2620 is a distance 2625 above the main delivery platform 2910. The delivery well emerges from the bottom of the delivery platform 2910 at a point 2650 such that the portion 2950 of the delivery well is below the delivery platform. This section 2950 acts as an eyelash guard to prevent the eyelash from coming in contact with the tip of an eye drop dispenser. This serves to reduce contamination because the eyelash will impact this lower portion 2950 and deposit contaminants at the edge 2675 of the lower portion 2950, greatly reducing the impact of an eyelash against the tip of an eye drop dispenser and preventing eyelash contaminants from being deposited on an eye drop dispenser.
It will be appreciated that variants of the above-disclosed and other features and functions, or alternatives thereof, may be combined into many other different systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims.
This application is a continuation-in-part of U.S. patent application Ser. No. 12/608,812, filed Oct. 29, 2009, which claims the priority benefit of U.S. application Ser. No. 61/254,093, filed Oct. 22, 2009, and also claims the priority benefit of U.S. application Ser. No. 61/256,189, filed Oct. 29, 2009, U.S. application Ser. No. 61/259,741, filed Nov. 10, 2009 and U.S. application Ser. No. 61/294,316, filed Jan. 12, 2010, the disclosures of which are incorporated herein by reference in their entirety.
Number | Date | Country | |
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61254093 | Oct 2009 | US | |
61256189 | Oct 2009 | US | |
61259741 | Nov 2009 | US | |
61294316 | Jan 2010 | US |
Number | Date | Country | |
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Parent | 12608812 | Oct 2009 | US |
Child | 12914577 | US |