US4542541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal intraocular lens
Assignee: Individual
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Filing: 1982-09-28
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Granted: 1985-09-24
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Expires: 2002-09-28
Abstract
Abstract This invention resides in changing the Shearing's supporting strands on an intraocular lens which as a free-flowing pointed end is snag-prone in modifying this pointed end by reshaping it into a generally circular shaped loop wherein the end said circular shape is blunted and contiguous to the resilient strand with variations of shape in the loop including ellipsoidal, tear drop and rectangular, all of which are snag-resistant.
Inventors
- 👤 Jaswant S. Pannu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
An intraocular lens comprising: a lens body; at least two spaced flexible positioning and supporting elements integrally formed with said lens body as a one-piece construction and extending radially outwardly from the periphery of said lens body; said elements defining a continuous, curved arc having a diameter greater than the diameter of said lens body, said arc curved toward said lens circumference and terminating in a free end spaced from said periphery; and snag-resistant means integrally formed on the free end of said elements for smoothly guiding and positioning the lens across eye tissue when implanting the lens, said snag-resistant means extending from said free end, turned towards said elements, and having an outer periphery which terminates adjacent to but spaced from said flexible elements and is substantially greater in size than the width of said flexible elements.
Claim 2
Dependent Claim
138 words
An intraocular lens comprising: a lens body; at least two spaced flexible positioning and supporting elements integrally formed with said lens body as a one-piece construction and extending radially outwardly from the periphery of said lens body; said elements defining a continuous, curved arc having a diameter greater than the diameter of said lens body, said arc curved toward said lens circumference and terminating in a free end spaced from said periphery; and snag-resistant means integrally formed on the free end of said elements for smoothly guiding and positioning the lens across eye tissue when implanting the lens, said snag-resistant means extending from said free end, turned towards said elements, and having an outer periphery which terminates adjacent to but spaced from said flexible elements and is substantially greater in size than the width of said flexible elements.
Claim 3
Dependent Claim
139 words
An intraocular lens comprising: a lens body; at least two spaced flexible positioning and supporting elements integrally formed with said lens body as a one-piece construction and extending radially outwardly from the periphery of said lens body; said elements defining a continuous, curved arc having a diameter greater than the diameter of said lens body, said arc curved toward said lens circumference and terminating in a free end spaced from said periphery; and snag-resistant means integrally formed on the free end of said elements for smoothly guiding and positioning the lens across eye tissue when implanting the lens, said snag-resistant means having a first arm bent towards said lens circumference and a second arm bent away from said lens circumference, said first and second arms terminating in an adjacent, spaced configuration at a position opposite from said free end.
Claim 4
Dependent Claim
139 words
An intraocular lens comprising: a lens body; at least two spaced flexible positioning and supporting elements integrally formed with said lens body as a one-piece construction and extending radially outwardly from the periphery of said lens body; said elements defining a continuous, curved arc having a diameter greater than the diameter of said lens body, said arc curved toward said lens circumference and terminating in a free end spaced from said periphery; and snag-resistant means integrally formed on the free end of said elements for smoothly guiding and positioning the lens across eye tissue when implanting the lens, said snag-resistant means having a first arm bent towards said lens circumference and a second arm bent away from said lens circumference, said first and second arms terminating in an adjacent, spaced configuration at a position opposite from said free end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-23 | 1989-03-25 | 1989-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-23 | 1993-03-25 | 1993-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-23 | 1997-03-25 | 1997-09-24 | $7700.00 | Window Closed / Lapsed |