WO1993004648A1 - A contact lens applicator - Google Patents

A contact lens applicator Download PDF

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Publication number
WO1993004648A1
WO1993004648A1 PCT/AU1992/000389 AU9200389W WO9304648A1 WO 1993004648 A1 WO1993004648 A1 WO 1993004648A1 AU 9200389 W AU9200389 W AU 9200389W WO 9304648 A1 WO9304648 A1 WO 9304648A1
Authority
WO
WIPO (PCT)
Prior art keywords
applicator
bore
lens
contact lens
mounting means
Prior art date
Application number
PCT/AU1992/000389
Other languages
French (fr)
Inventor
William Frank Clymer
Original Assignee
William Frank Clymer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by William Frank Clymer filed Critical William Frank Clymer
Publication of WO1993004648A1 publication Critical patent/WO1993004648A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/0061—Devices for putting-in contact lenses

Definitions

  • This invention relates generally to contact lenses and more particularly to a contact lens applicator useful for depositing a contact lens onto the eye of a user.
  • the wearer When putting contact lenses "on” the wearer removes each individual contact lens from its respective storage receptical and usually places that lens on the index finger.
  • the lens is manipulated to lie on the tip of the index finger with its normally convex surface laying on the finger and with the normally concave surface facing outwards
  • the finger with lens is then moved towards the appropriate eye and the lens is deposited on the cornea, preferably without folding or the trapping of air between the lens and cornea.
  • Folding of a soft contact lens or the trapping of air can result in failure of the lens to seat correctly on the cornea.
  • the placing of the lens on the cornea so that it seats without folding or trapping air requires a certain amount of manual dexterity, which some people lack.
  • the "mounting" of the lens on the index finger is not very secure and sometimes the lens falls off the finger with resultant contamination or, at worst, loss of the lens.
  • the invention in one broad form, provides an applicator useful for placing a contact lens upon an eye of a wearer, the applicator comprising:
  • lens mounting means secured to or integral with said main body said lens mounting means being adapted to receive a contact lens in a generally undistorted configuration with the normal convex surface thereof facing away from the main body;
  • propelling means operable to cause the contact lens to be propelled away from said lens mounting means.
  • the propelling means comprises a first member reciprocally received in a bore.
  • the propelling means includes a fluid, preferably air,
  • the applicator further comprises stop means to prevent the first member contacting a contact lens on or adjacent the concave surface.
  • the applicator comprises an elongate hollow body open at both ends.
  • the inner surface of the body defines the concave surface at one end for receiving a contact lens and a bore which extends from the concave surface to the other end.
  • a plunger is received in the end of the bore distant from the concave surface, the plunger comprising a rod having a head which limits movement into the bore.
  • the lens is placed on the concave surface and the applicator placed against the appropriate eye. Movement of the plunger towards the concave surface compresses air trapped between the contact lens and the plunger, propelling the lens onto the eye.
  • FIG 1 shows a perspective view of an embodiment of the invention in use.
  • FIG 2 shows an axial cross-section of the device of FIG 1 in a first position with a contact lens mounted thereon.
  • FIG 3 shows another axial cross-section of the device of FIG 1 in a second position ejecting the contact lens.
  • the applicator 10 comprises a mounting body 11 and a plunger 12.
  • the mounting body 11 is elongate and has a bore 13 extending between its two free ends 15, 16.
  • the bore 13 is adapted to receive the plunger 12, as will be explained below.
  • the mounting body 11 and plunger 12 are made of a plastics material that is compatible with saline solution and which may be sterilised without degredation. Preferably they are injection moulded.
  • the bore 13 expands o define a dish-shaped surface 17.
  • This surface 17 is concave and is preferably of a similar shape to an undistorted normal contact lens 18. However it is not essential that the concave surface 17 conform exactly to the shape of a normal lens since any variation can be accomodated by saline solution between the lens 18 and the surface 17.
  • the surface 17 is preferably slightly larger than the contact lens 18 such that the edge of the lens does not extend beyond the surface 17.
  • a contact lens 18 is relatively secure and is unlikely to be accidentally dislodged. This is particularly true when the lens 18 is wet, since the surface tension of the saline solution will hold the lens 18 to the surface 17.
  • the outer surface 19 of the body 11 extends from the annular ledge 21 toward the second end 16 as a frustrum of a cone. Again this is merely to aid use of the device and a constant radius is possible. Similarly the outer surface 19 may incorporate depressions for receiving the user's fingers to further aid use.
  • annular surface 22 extends between the bore 13 and outer surface 19.
  • this annular surface 22 is perpendicular to bore 13, but it is not essential that the surface be annular or perpendicular to the bore.
  • the bore 13 is substantially cylindrical and is sized to receive the plunger 12.
  • the plunger 12 comprises a cylindrical rod 23 having at one end a disc shaped head 24 of greater diameter than rod 23.
  • the diameter of head 24 is also greater than the diameter of outer surface 19 at the second end 16.
  • the head 24 also has an annular surface 25 adjacent rod 23.
  • the rod 23 has a constant diameter and is sized to be a clearance fit in the bore 13.
  • the length of the rod 23 is less than the length of the bore 13 between surfaces 22 and 17.
  • the plunger 12 is incapable of contact with the lens, which could result in contamination.
  • the bore 13 and rod 23 need not be circular in cross-section. An irregular, triangular or polygonal cross-section is possible, so long as it is substantially constant and so the rod 23 can slide in bore 13.
  • the bore 13 is generally of constant cross-section and a clearance fit with rod 23, except at second end 16.
  • the diameter of the bore 13 reduces somewhat to become a loose interferance fit with rod 23. This aids to prevent the plunger 12 from fully disengaging from mounting body 11, i.e. it maintains the two parts together while not substantially hindering relative movement therebetween. Again this is a preferred feature and is not essential.
  • the region of the bore 13 where the plunger rod 23 does not travel may be smaller or larger in size. In fact the change to a smaller diameter adjacent the concave surface 17 may be used as a stop for the plunger 12.
  • the applicator 10 is manipulated such that the plunger 12 is withdrawn partially from mounting body 11, as shown in FIGURE 2.
  • the plunger 12 is withdrawn such that free end 27 is adjacent second end 16.
  • the plunger 12 is withdrawn sufficiently to draw a working quantity of air into bore 13.
  • Operation of the applicator 10 is optimised if a small quantity of liquid, preferably saline solution, is introduced into bore 13.
  • This liquid acts to seal the gap between rod 23 and inner surface of bore 13.
  • the liquid may be introduced separately or as an incidental action to placing a contact lens 18 on the concave surface 17.
  • the contact lens 18 is withdrawn from its storage receptacle and, after suitable manipulation, placed in its correct orientation on the concave surface. 4By correct orientation it is meant that the surface normally concave when on the eye is concave on the applicator.
  • the lens 18 is wet with saline solution which holds the lens 18 to concave surface 17 and also seals across bore 13 to seal the ir trapped in the bore 13.
  • the applicator 10 is then manipulated by the user to place a portion of the lens 18 against the eye.
  • the applicator 10 and lens 18 should be at an angle to the eye so as not to trap air between the lens 18 and the eye.
  • the plunger 12 is then depressed to drive the rod 23 towards the lens 18.
  • the air trapped between the lens 18 and the rod 23 is initially compressed until the surface tension of the saline solution is overcome.
  • the lens 18 is then partially blown onto the eye by the escaping air and partially drawn by the surface tension of liquid between the eye and the lens.

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

An applicator (10) is provided which is useful for placing a contact lens (18) on an eye of a wearer. The applicator (10) comprises an elongate hollow body (11) open at both ends (15, 16). The inner surface of the body (11) defines a concave surface (17) adapted to receive the lens (18) at one end (15) and a bore (13) which extends from the concave surface (17) to the other end (16). A plunger (12) is received in the bore (13) form the other end (16). Movement of the plunger (12), towards the concave surface (17) propels a contact lens (18) from the concave surface (17).

Description

A CONTACT LENS APPLICATOR
This invention relates generally to contact lenses and more particularly to a contact lens applicator useful for depositing a contact lens onto the eye of a user.
When putting contact lenses "on" the wearer removes each individual contact lens from its respective storage receptical and usually places that lens on the index finger. The lens is manipulated to lie on the tip of the index finger with its normally convex surface laying on the finger and with the normally concave surface facing outwards
The finger with lens is then moved towards the appropriate eye and the lens is deposited on the cornea, preferably without folding or the trapping of air between the lens and cornea. Folding of a soft contact lens or the trapping of air can result in failure of the lens to seat correctly on the cornea. The placing of the lens on the cornea so that it seats without folding or trapping air requires a certain amount of manual dexterity, which some people lack. Furthermore the "mounting" of the lens on the index finger is not very secure and sometimes the lens falls off the finger with resultant contamination or, at worst, loss of the lens.
In an attempt to at least ameliorate one or more of the disadvantages of the conventional technique, the invention, in one broad form, provides an applicator useful for placing a contact lens upon an eye of a wearer, the applicator comprising:
(i) a main body;
(ii) lens mounting means secured to or integral with said main body said lens mounting means being adapted to receive a contact lens in a generally undistorted configuration with the normal convex surface thereof facing away from the main body; and
(iii) propelling means operable to cause the contact lens to be propelled away from said lens mounting means. Preferably the propelling means comprises a first member reciprocally received in a bore.
More preferably the propelling means includes a fluid, preferably air,
Most preferably the applicator further comprises stop means to prevent the first member contacting a contact lens on or adjacent the concave surface.
In a preferred embodiment of the invention the applicator comprises an elongate hollow body open at both ends. The inner surface of the body defines the concave surface at one end for receiving a contact lens and a bore which extends from the concave surface to the other end. A plunger is received in the end of the bore distant from the concave surface, the plunger comprising a rod having a head which limits movement into the bore. The lens is placed on the concave surface and the applicator placed against the appropriate eye. Movement of the plunger towards the concave surface compresses air trapped between the contact lens and the plunger, propelling the lens onto the eye.
The invention shall now be described with reference to a non-limiting embodiment and the drawings in which:
FIG 1 shows a perspective view of an embodiment of the invention in use.
FIG 2 shows an axial cross-section of the device of FIG 1 in a first position with a contact lens mounted thereon. FIG 3 shows another axial cross-section of the device of FIG 1 in a second position ejecting the contact lens.
Referring to the drawings, the applicator 10 comprises a mounting body 11 and a plunger 12. The mounting body 11 is elongate and has a bore 13 extending between its two free ends 15, 16. The bore 13 is adapted to receive the plunger 12, as will be explained below. Preferably the mounting body 11 and plunger 12 are made of a plastics material that is compatible with saline solution and which may be sterilised without degredation. Preferably they are injection moulded.
At the first end 15 of the body 11, the bore 13 expands o define a dish-shaped surface 17. This surface 17 is concave and is preferably of a similar shape to an undistorted normal contact lens 18. However it is not essential that the concave surface 17 conform exactly to the shape of a normal lens since any variation can be accomodated by saline solution between the lens 18 and the surface 17. The surface 17 is preferably slightly larger than the contact lens 18 such that the edge of the lens does not extend beyond the surface 17. Thus once mounted on the surface 17, a contact lens 18 is relatively secure and is unlikely to be accidentally dislodged. This is particularly true when the lens 18 is wet, since the surface tension of the saline solution will hold the lens 18 to the surface 17.
The outer surface 10 of the body 11, at the first end 15, expands outwardly to define an annular ledge 21 which, in use, is useful for gripping the applicator 10. It will be appreciated that this annular ledge 19 is merely preferred and is not essential. The outer surface 19 of the body 11 extends from the annular ledge 21 toward the second end 16 as a frustrum of a cone. Again this is merely to aid use of the device and a constant radius is possible. Similarly the outer surface 19 may incorporate depressions for receiving the user's fingers to further aid use.
At the second end 16, an annular surface 22 extends between the bore 13 and outer surface 19. Preferably this annular surface 22 is perpendicular to bore 13, but it is not essential that the surface be annular or perpendicular to the bore.
The bore 13 is substantially cylindrical and is sized to receive the plunger 12. The plunger 12 comprises a cylindrical rod 23 having at one end a disc shaped head 24 of greater diameter than rod 23. Preferably the diameter of head 24 is also greater than the diameter of outer surface 19 at the second end 16. The head 24 also has an annular surface 25 adjacent rod 23. The rod 23 has a constant diameter and is sized to be a clearance fit in the bore 13. The length of the rod 23 is less than the length of the bore 13 between surfaces 22 and 17. Thus when the plunger 12 is fully inserted into the mounting body 11, such that annular surfaces 22 and 25 abut, the free end 27 of the rod 23 is located remote from concave surface 17 and any lens 18 which may be mounted thereon. Thus the plunger 12 is incapable of contact with the lens, which could result in contamination. It will be appreciated that the bore 13 and rod 23 need not be circular in cross-section. An irregular, triangular or polygonal cross-section is possible, so long as it is substantially constant and so the rod 23 can slide in bore 13.
The bore 13 is generally of constant cross-section and a clearance fit with rod 23, except at second end 16. In the region of end 16, the diameter of the bore 13 reduces somewhat to become a loose interferance fit with rod 23. This aids to prevent the plunger 12 from fully disengaging from mounting body 11, i.e. it maintains the two parts together while not substantially hindering relative movement therebetween. Again this is a preferred feature and is not essential. Furthermore the region of the bore 13 where the plunger rod 23 does not travel may be smaller or larger in size. In fact the change to a smaller diameter adjacent the concave surface 17 may be used as a stop for the plunger 12.
In use the applicator 10 is manipulated such that the plunger 12 is withdrawn partially from mounting body 11, as shown in FIGURE 2. Preferably the plunger 12 is withdrawn such that free end 27 is adjacent second end 16. However it is merely necessary that the plunger 12 is withdrawn sufficiently to draw a working quantity of air into bore 13.
Operation of the applicator 10 is optimised if a small quantity of liquid, preferably saline solution, is introduced into bore 13. This liquid acts to seal the gap between rod 23 and inner surface of bore 13. The liquid may be introduced separately or as an incidental action to placing a contact lens 18 on the concave surface 17.
The contact lens 18 is withdrawn from its storage receptacle and, after suitable manipulation, placed in its correct orientation on the concave surface. 4By correct orientation it is meant that the surface normally concave when on the eye is concave on the applicator. The lens 18 is wet with saline solution which holds the lens 18 to concave surface 17 and also seals across bore 13 to seal the ir trapped in the bore 13.
The applicator 10 is then manipulated by the user to place a portion of the lens 18 against the eye. The applicator 10 and lens 18 should be at an angle to the eye so as not to trap air between the lens 18 and the eye. The plunger 12 is then depressed to drive the rod 23 towards the lens 18. The air trapped between the lens 18 and the rod 23 is initially compressed until the surface tension of the saline solution is overcome. The lens 18 is then partially blown onto the eye by the escaping air and partially drawn by the surface tension of liquid between the eye and the lens.
Although this device is of more benefit with soft contact lenses, it will be appreciated that it may be used with hard contact lenses. Furthermore while the plunger 12 is described as having a solid rod 23, it will be appreciated that a hollow rod 23 is possible, so long as it seals the bore 13.
It will be appreciated by those skilled in the art that many obvious modifications and variations may be made to the embodiment described herein without departing from the spirit or scope of the invention.

Claims

The claims defining the invention are as follows:
1. An applicator useful for placing a contact lens upon an eye of a wearer, the applicator comprising:
(i) a main body;
(ii) lens mounting means secured to or integral with said main body said lens mounting means being adapted to receive a contact lens in a generally undistorted configuration with the normal convex surface thereof facing away from the main body; and
(iii) propelling means operable to cause the contact lens to be propelled away from said lens mounting means.
2. The applicator of claim 1 wherein the propelling means includes means movable relative to the main body.
3. An applicator according to claim 1 or claim 2 wherein said propelling means comprises an actuator member disposed within a bore within said main body for movement therealong, one end of said bore communicating with said lens mounting means so that movement of said actuator towards said one end of said bore causes the contact lens to be propelled away from said lens mounting means.
4. An applicator according to claim 3 wherein movement of said actuator means causes an operating fluid within said bore to act on the lens to propel it from the mounting means.
5. An applicator according to any one of claims 1 to 4 wherein said mounting means includes a support surface against which the lens rests when carried thereby said support surface being of a generally concave configuration.
6. The applicator of any one of claims 3 to 5 further comprising stop means to prevent the actuator member contacting a contact lens on or adjacent the concave surface.
7. The applicator of any one of claims 3 to 6 wherein the actuator member is received in a second end of the bore.
8. The applicator of any one of claims 3 to 7 wherein the second end of the bore and at least a portion of the actuator member form an interferance fit.
9. The applicator of any one of claims 3 to 8 wherein the actuator member comprises a rod of generally smaller size than the bore and a head at one end of the rod, the head being larger than the bore.
10. The applicator of claim 9 when dependent on claim 8 wherein the other end of the rod and the second end of the bore form an interferance fit.
11. The applicator of any one of claims 1 to 9 wherein the main body comprises an elongate hollow body open at both ends having inner and outer surfaces, the inner surface defining the lens mouunting means at one end of the body and a bore extending to the other end of the body.
12. The applicator of claim 10 wherein the outer surface of the body defines an annular ledge at or adjacent the one end.
13. The applicator of claim 10 or claim 11, when dependant on claim 9 wherein the head extends transversely outwardly beyond the other end of the outer surface.
14. The applicator of any one of claims 1 to 13 wherein the lens mounting means is of a shape generally complementary to the contact lens.
15. An applicator useful for placing a contact lens upon an eye of a wearer, substantially as herein described with reference to the drawings.
MENDED CLAIMS
[received by the International Bureau on 4 December 1992 (04.12.92); original claims 1-15 replaced by amended claims 1-12
(2 pages)]
The claims defining the invention are as follows: 1. An applicator useful for placing a contact lens upon an eye of a wearer, the applicator comprising:
(i) a main body;
(ii) lens mounting means secured to or integral with said main body said lens mounting means being adapted to receive a contact lens in a generally undistorted configuration with the normal concave surface thereof facing away from the main body; and
(iii) propelling means operable to cause the contact lens to be propelled away from said lens mounting means, wherein said propelling means comprises an actuator member disposed within a bore within said main body for movement therealong, one end of said bore communicating with said lens mounting means so that movement of said actuator towards said one end of said bore causes an operating fluid within said bore to act on the lens to propel it from the mounting means.
2. An applicator according to claim 1 wherein said mounting means includes a support surface against which the lens rests when carried thereby, said support surface being of a generally concave configuration.
3. The applicator of claim 1 or claim 2 further comprising stop means to prevent the actuator member contacting a contact lens on or adjacent the concave surface.
4. The applicator of any one of claims 1 to 3 wherein the actuator member is received in a second end of the bore.
5. The applicator of any one of claims 1 to 4 wherein the second end of the bore and at least a portion of the actuator member form an interferance fit.
6. The applicator of any one of claims 1 to 5 wherein the actuator member comprises a rod of generally smaller size than the bore and a head at one end of the rod, the head being larger than the bore.
7. The applicator of claim 6 when dependent on claim 5 wherein the other end of the rod and the second end of the
8. The applicator of any one of claims 1 to 6 wherein the main body comprises an elongate hollow body open at both ends having inner and outer surfaces, the inner surface defining the lens mouunting means at one end of the body and a bore extending to the other end of the body.
9. The applicator of claim 7 wherein the outer surface of the body defines an annular ledge at or adjacent the one end.
10. The applicator of claim 7 or claim 8, when dependant on claim 6 wherein the head extends transversely outwardly beyond the other end of the outer surface.
11. The applicator of any one of claims 1 to 10 wherein the lens mounting means is of a shape generally complementary to the contact lens.
12. An applicator useful for placing a contact lens upon an eye of a wearer, substantially as herein described with reference to the drawings.
PCT/AU1992/000389 1991-09-03 1992-07-27 A contact lens applicator WO1993004648A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK8158 1991-09-03
AUPK815891 1991-09-03

Publications (1)

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WO1993004648A1 true WO1993004648A1 (en) 1993-03-18

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PCT/AU1992/000389 WO1993004648A1 (en) 1991-09-03 1992-07-27 A contact lens applicator

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710259A1 (en) * 1992-02-21 1995-03-31 Hellenkamp Johann Friedrich Device for inserting a contact lens
US6739636B2 (en) 2001-05-02 2004-05-25 Medical Instill Technologies, Inc. Contact lens applicator and cartridge used in connection therewith
US7092175B2 (en) 2003-11-17 2006-08-15 Medical Instill Technologies, Inc. Contact lens transfer device and associated method
US7168746B2 (en) 2001-05-02 2007-01-30 Medical Instill Technologies, Inc. Apparatus for applying and removing contact lenses and related method
WO2008011722A1 (en) * 2006-07-28 2008-01-31 Novadaq Technologies Inc. System and method for deposition and removal of an optical element on an endoscope objective
US9642532B2 (en) 2008-03-18 2017-05-09 Novadaq Technologies Inc. Imaging system for combined full-color reflectance and near-infrared imaging
US9814378B2 (en) 2011-03-08 2017-11-14 Novadaq Technologies Inc. Full spectrum LED illuminator having a mechanical enclosure and heatsink
US9877654B2 (en) 2006-02-07 2018-01-30 Novadaq Technologies Inc. Near infrared imaging
WO2018048309A1 (en) 2016-09-07 2018-03-15 Dekock Vision As A contact lens manipulator assembly and a method thereof
US9968244B2 (en) 2000-07-14 2018-05-15 Novadaq Technologies ULC Compact fluorescence endoscopy video system
US10182709B2 (en) 2002-01-15 2019-01-22 Novadaq Technologies ULC Filter for use with imaging endoscopes
US10293122B2 (en) 2016-03-17 2019-05-21 Novadaq Technologies ULC Endoluminal introducer with contamination avoidance
US10694152B2 (en) 2006-12-22 2020-06-23 Novadaq Technologies ULC Imaging systems and methods for displaying fluorescence and visible images
US10765553B2 (en) 2016-08-29 2020-09-08 Craig L. Hershoff Contact lens manipulator with suction cup and safety release mechanism
US10869645B2 (en) 2016-06-14 2020-12-22 Stryker European Operations Limited Methods and systems for adaptive imaging for low light signal enhancement in medical visualization
USD916294S1 (en) 2016-04-28 2021-04-13 Stryker European Operations Limited Illumination and imaging device
US10980420B2 (en) 2016-01-26 2021-04-20 Stryker European Operations Limited Configurable platform
US10992848B2 (en) 2017-02-10 2021-04-27 Novadaq Technologies ULC Open-field handheld fluorescence imaging systems and methods
US11930278B2 (en) 2015-11-13 2024-03-12 Stryker Corporation Systems and methods for illumination and imaging of a target

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US4037866A (en) * 1976-07-26 1977-07-26 Price Edward E Contact lens applicator
US4071272A (en) * 1976-09-27 1978-01-31 Drdlik Frank J Contact lens applicator
US4123098A (en) * 1977-07-25 1978-10-31 Shoup Leo E Contact lens insertion and retraction device
WO1981001239A1 (en) * 1979-10-30 1981-05-14 L Shoup Contact lens insertion and retraction device
US4332408A (en) * 1978-10-12 1982-06-01 Cointment Delma M Device for removing and replacing soft contact lenses worn on the human eye
US4565396A (en) * 1985-03-11 1986-01-21 Larimer John M Pneumatic contact lens insertion device

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US4037866A (en) * 1976-07-26 1977-07-26 Price Edward E Contact lens applicator
US4071272A (en) * 1976-09-27 1978-01-31 Drdlik Frank J Contact lens applicator
US4123098A (en) * 1977-07-25 1978-10-31 Shoup Leo E Contact lens insertion and retraction device
US4332408A (en) * 1978-10-12 1982-06-01 Cointment Delma M Device for removing and replacing soft contact lenses worn on the human eye
WO1981001239A1 (en) * 1979-10-30 1981-05-14 L Shoup Contact lens insertion and retraction device
US4565396A (en) * 1985-03-11 1986-01-21 Larimer John M Pneumatic contact lens insertion device

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710259A1 (en) * 1992-02-21 1995-03-31 Hellenkamp Johann Friedrich Device for inserting a contact lens
US9968244B2 (en) 2000-07-14 2018-05-15 Novadaq Technologies ULC Compact fluorescence endoscopy video system
US6739636B2 (en) 2001-05-02 2004-05-25 Medical Instill Technologies, Inc. Contact lens applicator and cartridge used in connection therewith
US7000960B2 (en) 2001-05-02 2006-02-21 Medical Instill Technologies, Inc. Contact lens applicator and cartridge used in connection therewith
US7168746B2 (en) 2001-05-02 2007-01-30 Medical Instill Technologies, Inc. Apparatus for applying and removing contact lenses and related method
US10182709B2 (en) 2002-01-15 2019-01-22 Novadaq Technologies ULC Filter for use with imaging endoscopes
US7092175B2 (en) 2003-11-17 2006-08-15 Medical Instill Technologies, Inc. Contact lens transfer device and associated method
US9877654B2 (en) 2006-02-07 2018-01-30 Novadaq Technologies Inc. Near infrared imaging
US9386909B2 (en) 2006-07-28 2016-07-12 Novadaq Technologies Inc. System and method for deposition and removal of an optical element on an endoscope objective
WO2008011722A1 (en) * 2006-07-28 2008-01-31 Novadaq Technologies Inc. System and method for deposition and removal of an optical element on an endoscope objective
US11770503B2 (en) 2006-12-22 2023-09-26 Stryker European Operations Limited Imaging systems and methods for displaying fluorescence and visible images
US10694152B2 (en) 2006-12-22 2020-06-23 Novadaq Technologies ULC Imaging systems and methods for displaying fluorescence and visible images
US11025867B2 (en) 2006-12-22 2021-06-01 Stryker European Operations Limited Imaging systems and methods for displaying fluorescence and visible images
US10694151B2 (en) 2006-12-22 2020-06-23 Novadaq Technologies ULC Imaging system with a single color image sensor for simultaneous fluorescence and color video endoscopy
US9642532B2 (en) 2008-03-18 2017-05-09 Novadaq Technologies Inc. Imaging system for combined full-color reflectance and near-infrared imaging
US10779734B2 (en) 2008-03-18 2020-09-22 Stryker European Operations Limited Imaging system for combine full-color reflectance and near-infrared imaging
US9814378B2 (en) 2011-03-08 2017-11-14 Novadaq Technologies Inc. Full spectrum LED illuminator having a mechanical enclosure and heatsink
US11930278B2 (en) 2015-11-13 2024-03-12 Stryker Corporation Systems and methods for illumination and imaging of a target
US11298024B2 (en) 2016-01-26 2022-04-12 Stryker European Operations Limited Configurable platform
US10980420B2 (en) 2016-01-26 2021-04-20 Stryker European Operations Limited Configurable platform
US10293122B2 (en) 2016-03-17 2019-05-21 Novadaq Technologies ULC Endoluminal introducer with contamination avoidance
USD916294S1 (en) 2016-04-28 2021-04-13 Stryker European Operations Limited Illumination and imaging device
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