US4513456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lens
Assignee: Individual
•
Filing: 1983-06-30
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Granted: 1985-04-30
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Expires: 2003-06-30
Abstract
Abstract An intraocular lens device is described which includes a fixation element in the form of an elongated, resilient strut extending outwardly of the lens for contact with supportive eye structure and thence inwardly toward the lens, the strut having a free end. A second strut also is carried by the lens adjacent the first mentioned strut and provides an open end oriented to receive and immobilize said free end, thereby restraining the latter from substantial movement within the eye.
Inventors
- 👤 Thomas C. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:30
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683; A61F2002/1686
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
An intraocular lens device comprising: (a) a lens for placement adjacent the side of the iris of an eye with its axis substantially aligned with the pupillary axis; (b) fixation elements carried by the lens for supportive engagement with eye structure circumferential of the pupillary axis of the eye, at least one fixation element comprising an elongated resilient strut having a proximal portion carried by the lens, a medial portion having a contact surface engageable with said eye structure, and a distal portion extending inwardly from the medial portion toward the lens and having a free end to permit the contact surface to move elastically toward and away from the lens; and (c) free end capture means comprising a second strut extending from the lens and having a loop at its outer end oriented to protectably receive the free end of the strut.
Claim 2
Dependent Claim
143 words
An intraocular lens device comprising: (a) a lens for placement adjacent the side of the iris of an eye with its axis substantially aligned with the pupillary axis; (b) fixation elements carried by the lens for supportive engagement with eye structure circumferential of the pupillary axis of the eye, at least one fixation element comprising an elongated resilient strut having a proximal portion carried by the lens, a medial portion having a contact surface engageable with said eye structure, and a distal portion extending inwardly from the medial portion toward the lens and having a free end to permit the contact surface to move elastically toward and away from the lens; and (c) free end capture means comprising a second strut extending from the lens and having a loop at its outer end oriented to protectably receive the free end of the strut.
Claim 3
Dependent Claim
154 words
An intraocular lens device comprising: (a) a lens for placement adjacent the side of the iris of an eye with its axis substantially aligned with the pupillary axis; (b) fixation elements carried by the lens for supportive engagement with eye structure circumferential of the pupillary axis of the eye, at least one fixation element comprising an elongated resilient strut having a proximal portion carried by the lens, a medial portion having a contact surface engageable with said eye structure, and a distal portion extending inwardly from the medial portion toward the lens and having a free end to permit the contact surface to move elastically toward and away from the lens; and (c) free end capture means comprising a protrusion extending from the lens periphery generally parallel to the lens axis and having an aperture therein spaced from the plane of the lens and oriented to protectably receive the free end of the strut.
Claim 4
Dependent Claim
154 words
An intraocular lens device comprising: (a) a lens for placement adjacent the side of the iris of an eye with its axis substantially aligned with the pupillary axis; (b) fixation elements carried by the lens for supportive engagement with eye structure circumferential of the pupillary axis of the eye, at least one fixation element comprising an elongated resilient strut having a proximal portion carried by the lens, a medial portion having a contact surface engageable with said eye structure, and a distal portion extending inwardly from the medial portion toward the lens and having a free end to permit the contact surface to move elastically toward and away from the lens; and (c) free end capture means comprising a protrusion extending from the lens periphery generally parallel to the lens axis and having an aperture therein spaced from the plane of the lens and oriented to protectably receive the free end of the strut.
Claim 5
Dependent Claim
24 words
The intraocular lens of claim 2 in which the free strut end is barbed for easy insertion into but difficult removal from said aperture.
References Cited (Backward Citations)
US4403354A
Cited
US4338687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |