Patent US4536896A successfully refreshed from Google Patents.
US4536896A
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US
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Intraocular lens with appendage manipulation loop
Assignee: IOPTEX Inc 1301 OPTICAL DRIVE AZUSA CA 910702 A CORP OF CA
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Filing: 1983-05-17
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Granted: 1985-08-27
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Expires: 2003-05-17
Abstract
Abstract An intraocular lens utilizing an optical portion and having at least one appendage connected to the same at the first end portion. The appendage includes a second end portion which is intended for contacting the anatomy of the eye. The appendage also includes an intermediate portion between the first and second end portions which is provided with a substantially closed loop to aid in manipulation of the appendage.
Inventors
- 👤 Timothy Bittner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:10
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
An intraocular lens comprising: a. an optical portion; and b. at least one resilient appendage having a first end portion connected to and extending from said optical portion, a second end portion intended for contacting the anatomy of the eye, and an intermediate portion between said first and second end portions, said intermediate portion of said at least one appendage including a substantially closed loop, said substantially closed loop including a continuous member which turns through an arc of at least one hundred eighty degrees, said continuous member forming a coil having an upper portion and an adjacent lower portion provided with an overlapped area, said continuous member of said closed loop being fixed against movement relative to said first end portion of said at least one appendage such that the exertion of force on said at least one appendage results in bending of said first end portion relative to said optical portion.
Claim 2
Dependent Claim
153 words
An intraocular lens comprising: a. an optical portion; and b. at least one resilient appendage having a first end portion connected to and extending from said optical portion, a second end portion intended for contacting the anatomy of the eye, and an intermediate portion between said first and second end portions, said intermediate portion of said at least one appendage including a substantially closed loop, said substantially closed loop including a continuous member which turns through an arc of at least one hundred eighty degrees, said continuous member forming a coil having an upper portion and an adjacent lower portion provided with an overlapped area, said continuous member of said closed loop being fixed against movement relative to said first end portion of said at least one appendage such that the exertion of force on said at least one appendage results in bending of said first end portion relative to said optical portion.
Claim 3
Dependent Claim
40 words
The intraocular lens of claim 1 in which said substantially closed loop is located at substantially the midpoint between said place of connection of said first end portion to said optical portion and the end of said second end portion.
Claim 4
Dependent Claim
26 words
The intraocular lens of claim 1 in which said continuous member of said closed loop turns through an arc of at least two hundred seventy degrees.
Claim 5
Dependent Claim
26 words
The intraocular lens of claim 1 in which said continuous member of said closed loop turns through an arc of at least three hundred seventy degrees.
Claim 6
Dependent Claim
41 words
The intraocular lens of claim 1 in which said closed loop is closer to the optical portion than said second end portion of said at least one appendage in the absence of any bending forces on said at least one appendage.
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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |