Patent US4601720A successfully refreshed from Google Patents.
US4601720A
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US
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Intraocular lens assembly
Assignee: Individual
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Filing: 1981-02-24
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Granted: 1986-07-22
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Expires: 2001-02-24
Abstract
Abstract An intraocular lens assembly including an intraocular lens with first and second generally U-shaped flexible fingers carried on and projecting from the lens in opposite directions, with each of the fingers having a continuous curve from the lens to the outermost portion of the finger and preferably to the end of the finger. The lens typically is plano-convex with a cylindrical edge with the fingers projecting outward from the edge, preferably at a small angle to the planar surface of the lens.
Inventors
- 👤 Robert M. Sinskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:30
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
An intraocular lens assembly comprising in combination: an intraocular lens for implantation in the posterior chamber of a human eye; and first and second generally U-shaped flexible fingers carried on and projecting away from said lens in opposite directions away from each other, each of said fingers having a continuous curve from said lens at least to the outermost portion of the finger as viewed from the front of said lens, each of said fingers having a fixed end and a free end, with said fixed end joined to said lens and with said free end spaced from said lens, each of said fingers having a first portion adjacent said fixed end and a second portion adjacent said free end, with said first portion of longer radius and said second portion of shorter radius, with said free end directed inward toward said lens.
Claim 2
Dependent Claim
143 words
An intraocular lens assembly comprising in combination: an intraocular lens for implantation in the posterior chamber of a human eye; and first and second generally U-shaped flexible fingers carried on and projecting away from said lens in opposite directions away from each other, each of said fingers having a continuous curve from said lens at least to the outermost portion of the finger as viewed from the front of said lens, each of said fingers having a fixed end and a free end, with said fixed end joined to said lens and with said free end spaced from said lens, each of said fingers having a first portion adjacent said fixed end and a second portion adjacent said free end, with said first portion of longer radius and said second portion of shorter radius, with said free end directed inward toward said lens.
Claim 3
Dependent Claim
43 words
A lens assembly as defined in claim 1 wherein said lens is plano-convex with a cylindrical edge, and each of said fingers projects outward from said edge at an angle to the plane of said lens toward the convex surface of said lens.
Claim 4
Dependent Claim
23 words
A lens assembly as defined in claim 2 wherein said angle is in the range of about 7 degrees to about 15 degrees.
Claim 5
Dependent Claim
18 words
A lens assembly as defined in claim 2 wherein said angle is in the order of 10 degrees.
Claim 6
Dependent Claim
40 words
A lens assembly as defined in claim 1 wherein said lens is plano-convex with a cylindrical edge, and each of said fingers projects outward from said edge in a plane substantially parallel to the planar surface of the said lens.
Claim 7
Dependent Claim
36 words
A lens assembly as defined in claim 1 wherein said radius of said first portion is at least twice that of said second portion, with said free end directed toward the central portion of said 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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |