US4167283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for applying a soft contact lens
Assignee: Individual
•
Filing: 1978-04-03
•
Granted: 1979-09-11
•
Expires: 1998-04-03
Abstract
Abstract Apparatus for applying a soft contact lens to the surface of an eye is disclosed to include a thimble section, a cup section and a stem section therebetween. The soft contact lens is retained on the cup section by capillary attraction during placement. The diameter of the cup section is less than the diameter of the lens being placed in order to cause the capillary attraction between the cup section and lens section to be less than the capillary attraction between the lens and the surface of the eye thereby permitting sure and easy placement.
Inventors
- 👤 Michael A. Feldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:40
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/0061
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
151 words
A contact lens inserter for soft contact lenses for applying said soft contact lens to the surface of an eye comprising: a finger receiving means comprising a flexible material having a tapered wall construction for snugly receiving a fingertip therein so that the fingertip controls the movement of said inserter, a lens support member comprising a generally concave cup for holding said lens, an opening formed in said lens support member to preclude creation of suction therein which would tend to hold said contact lens in said lens support member, and a stem member connecting said lens support member to said finger receiving means, said stem member extending substantially orthogonally with respect to the ball of the finger and substantally laterally with respect to the axis of the finger, so that said lens support member approaches the eye in the same direction as the ball of the finger approaches the eye.
Claim 2
Dependent Claim
151 words
A contact lens inserter for soft contact lenses for applying said soft contact lens to the surface of an eye comprising: a finger receiving means comprising a flexible material having a tapered wall construction for snugly receiving a fingertip therein so that the fingertip controls the movement of said inserter, a lens support member comprising a generally concave cup for holding said lens, an opening formed in said lens support member to preclude creation of suction therein which would tend to hold said contact lens in said lens support member, and a stem member connecting said lens support member to said finger receiving means, said stem member extending substantially orthogonally with respect to the ball of the finger and substantally laterally with respect to the axis of the finger, so that said lens support member approaches the eye in the same direction as the ball of the finger approaches the eye.
Claim 3
Dependent Claim
27 words
A contact lens inserter as claimed in claim 1, wherein said concave cup has a diameter which is smaller than the diameter of said soft contact lens.
Claim 4
Dependent Claim
33 words
A contact lens inserter as claimed in claim 2, wherein the diameter of said lens support member is smaller than the diameter of said soft contact lens by no greater than two millimeters.
Claim 5
Dependent Claim
35 words
A contact lens inserter as claimed in claim 2, wherein said lens support member is sized in relationship to said lens to add peripheral support to said contact lens to prevent inversion of said lens.
Claim 6
Dependent Claim
19 words
A contact lens inserter as claimed in claims 1 or 2, wherein said concave cup comprises a rubber material.
Claim 7
Dependent Claim
31 words
A contact lens inserter as claimed in claims 1 or 2, wherein said finger receiving means, said stem member and said lens support member are formed of a rubbery type material.
Claim 8
Dependent Claim
44 words
A contact lens inserter as claimed in claim 1, wherein said stem member comprises a tubular construction having a longitudinal opening therethrough, said opening formed in said lens support member being in air communication with said longitudinal opening to preclude creation of said suction.
Claim 9
Dependent Claim
34 words
A contact lens inserter as claimed in claim 7, wherein said finger receiving means comprises an opening which is in air communication with said opening in said lens support member through said longitudinal opening.
Claim 10
Dependent Claim
27 words
A contact lens inserter as claimed in claim 7, wherein said stem member comprises an aperture in air communication with said longitudinal opening to preclude said suction.
Claim 11
Dependent Claim
23 words
A contact lens inserter as claimed in claim 1, wherein said tapered wall construction of said finger receiving means comprises a frusto-conical member.
Claim 12
Dependent Claim
46 words
A contact lens inserter as claimed in claim 1, wherein said lens support member is sufficiently resilient to distort the lens on application to express bubbles from between the lens and the surface of the eye without damage to the lens or injury to the eye.
Claim 13
Dependent Claim
66 words
A contact lens inserter as claimed in claim 1, in which the juncture between the stem member and the lens support member is sufficiently resilient to permit deflection of the lens support member upon application of the lens to the eye to ensure secure continuous, surface-to-surface contact between the lens and the surface of the eye without injury to the eye or damage to the lens.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-10 | 1983-03-12 | 1983-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-10 | 1987-03-12 | 1987-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-10 | 1991-03-12 | 1991-09-11 | $7700.00 | Window Closed / Lapsed |