US4580299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lens
Assignee: Advanced Vision Science Inc
•
Filing: 1983-10-19
•
Granted: 1986-04-08
•
Expires: 2003-10-19
Abstract
Abstract One-size intraocular lens including a lens optic, one flexible secured loop and an other flexible free-end measured loop. Each loop assumes a U-shaped configuration and can be provided with an appropriate vault whether the lens is implanted into the anterior chamber or the posterior chamber. The lens and loop are constructed from a single monomer such as polymethylmethacrylate (PMMA) providing for stability, low mass, and flexibility in three degrees of freedom, particularly with respect to the ends. A lens template accompanies the lens for cutting the free end of the loop with the unsecured end to a predetermined length for engaging into the tapered hole for a subsequent mechanical frictional engagement therein. The loops are vaulted for a standard vault between the plane of the base of each loop and the plano surface of the lens optic.
Inventors
- 👤 Richard L. Lindstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:39
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1602; A61F2/1605; A61F2/161; A61F2002/1681; A61F2002/1683; A61F2002/1686
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
Intraocular lens comprising: a. lens optic including a substantially rounded optic with two opposing surfaces; b. two opposing U-shaped loops, each of said loops formed of a smooth, round, cylindrical member, each of said loops including a rounded base, one of said loops secured into said lens optic; and, c. another of said loops having one end secured into said lens optic, and another free end of said loops for engagement into a predrilled hole in said lens optic, said free end of said loop being scribed for predetermined sizing whereby said free end can be sized accordingly for frictional engagement into said hole, thereby providing for a sized intraocular lens.
Claim 2
Dependent Claim
111 words
Intraocular lens comprising: a. lens optic including a substantially rounded optic with two opposing surfaces; b. two opposing U-shaped loops, each of said loops formed of a smooth, round, cylindrical member, each of said loops including a rounded base, one of said loops secured into said lens optic; and, c. another of said loops having one end secured into said lens optic, and another free end of said loops for engagement into a predrilled hole in said lens optic, said free end of said loop being scribed for predetermined sizing whereby said free end can be sized accordingly for frictional engagement into said hole, thereby providing for a sized intraocular lens.
Claim 3
Dependent Claim
12 words
Lens of claim 1 wherein said lens is an anterior chamber lens.
Claim 4
Dependent Claim
12 words
Lens of claim 1 wherein said lens is a posterior chamber lens.
Claim 5
Dependent Claim
9 words
Lens of claim 1 wherein said loops are vaulted.
Claim 6
Dependent Claim
103 words
In combination, intraocular lens and template: a. intraocular lens including a lens optic of planoconvex surfaces, two opposing U-shaped loops, each of said loops formed of a smooth, round, cylindrical member, each of said loops including a substantially rounded base, one of said loops secured into said optic, another of said loops having one end secured into said lens optic, and another free end for engagement into a predrilled tapered hole in said lens optic; and, b. means for sizing said free end of said lens optic for subsequent placement and mechanical frictional engagement into said hole thereby providing a sized intraocular lens.
Claim 7
Dependent Claim
103 words
In combination, intraocular lens and template: a. intraocular lens including a lens optic of planoconvex surfaces, two opposing U-shaped loops, each of said loops formed of a smooth, round, cylindrical member, each of said loops including a substantially rounded base, one of said loops secured into said optic, another of said loops having one end secured into said lens optic, and another free end for engagement into a predrilled tapered hole in said lens optic; and, b. means for sizing said free end of said lens optic for subsequent placement and mechanical frictional engagement into said hole thereby providing a sized intraocular lens.
Claim 8
Dependent Claim
31 words
Combination of claim 5 wherein said sizing means comprises scribe marks on said free end of said loop whereby each scribe mark corresponds to a respective diametrical length of said lens.
Claim 9
Dependent Claim
21 words
Combination of claim 5 wherein said sizing means comprises a template corresponding to sizes to be cut for corresponding diametrical lengths.
Claim 10
Dependent Claim
88 words
Process for sizing diametrical length of an intraocular lens comprising the steps of: a. placing a free end of a loop of an intraocular lens next to a template; b. matching the diametrical length of a loop to a length on the template; c. cutting the portion of the free end of the loop at the diametrical length; d. engaging the cut end into a tapered hole for a mechanical frictional engagement of the end of the loop into the tapered hole thereby providing a sized intraocular lens.
Claim 11
Dependent Claim
88 words
Process for sizing diametrical length of an intraocular lens comprising the steps of: a. placing a free end of a loop of an intraocular lens next to a template; b. matching the diametrical length of a loop to a length on the template; c. cutting the portion of the free end of the loop at the diametrical length; d. engaging the cut end into a tapered hole for a mechanical frictional engagement of the end of the loop into the tapered hole thereby providing a sized intraocular lens.
References Cited (Backward Citations)
US4403354A
Cited
US4426741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |