US4781718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lens
Assignee: Individual
•
Filing: 1987-10-09
•
Granted: 1988-11-01
•
Expires: 2007-10-09
Abstract
Abstract Intraocular lens including loop haptic members each affixed at more than one point to a soft skirt of an optic or to a soft optic for torsional rigidity of the loop haptic member and for preventing loop rotation or pull out in an optic. The loop haptic members each include a main loop haptic member, and two branch members proceeding from the main loop haptic member to affix in securement holes in the edge or surface of an optic. The loops' securement end points include conically shaped end like members which engage within the soft portion of the IOL.
Inventors
- 👤 Richard L. Lindstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683; A61F2002/1686
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
66 words
An intraocular lens comprising: a. an optic; and, b. at least one main loop haptic member and at least one supporting loop haptic member, the loop member and the supporting member being joined intermediate their ends, and their proximate ends being immovably secured to the optic by conical barbs on the ends being in tight frictional engagement with the sides of cylindrical bores in the optic.
Claim 2
Dependent Claim
66 words
An intraocular lens comprising: a. an optic; and, b. at least one main loop haptic member and at least one supporting loop haptic member, the loop member and the supporting member being joined intermediate their ends, and their proximate ends being immovably secured to the optic by conical barbs on the ends being in tight frictional engagement with the sides of cylindrical bores in the optic.
Claim 3
Dependent Claim
20 words
The lens of claim 1 wherein the ends of the haptic members are secured to the optic at its edge.
Claim 4
Dependent Claim
23 words
The lens of claim 1 wherein the ends of the haptic members are secured to the optic at its anterior or posterior surface.
Claim 5
Dependent Claim
35 words
The lens pf claim 1 wherein the end of one member is secured at the edge of th optic and the end of the other member is secured at the optic's anterior or posterior surface.
Claim 6
Dependent Claim
29 words
The lens of claim 1 wherein both members are secured to the edge of the optic and those members and the edge of the optic define an open area.
Claim 7
Dependent Claim
13 words
A lens of claim 1 wherein the optic is made of soft material.
Claim 8
Dependent Claim
14 words
A lens of claim 1 wherein the optic has a skirt of soft material.
References Cited (Backward Citations)
US4192022A
Cited
US4642113A
Cited
DE3130278A1
Cited
US4617023A
Cited
US4551864A
Cited
EP0227357A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |