US4025965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lenses
Assignee: American Optical Corp
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Filing: 1976-03-16
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Granted: 1977-05-31
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Expires: 1996-03-16
Abstract
Abstract Optical sections (lenses) of pseudophakoi having tangential holes are produced without drilling operations. A preform of lens material is drawn with embedded acid soluble rods and/or openings corresponding in diametral size and relative juxtaposition to the size, shape and locations of holes needed in a lens, a lens blank is cut from the drawn preform and portions of rods remaining therein are etched away prior to or following final edging and surface finishing of the lens blank.
Inventors
- 👤 Walter P. Siegmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/203; A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1602; A61F2/1605; A61F2/1608; C03B23/02; C03B23/037; A61F2002/1681; A61F2002/1683; A61F2002/1686
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A pseudophakos comprising a lens having uninterrupted smoothly optically finished opposite anterior and posterior sides and a pair of open-ended tangentially directed holes, one extending parallel to the other adjacent opposite sides of said lens, an iris clip of wire having opposite ends extended into and fixed against accidental withdrawal from each of said holes, said clip being in the form of a loop extending from said holes rearwardly away from said posterior surface of said lens a substantial distance and thence generally laterally thereof whereby marginal portions of the iris diaphragm of an aphakic eye may be positioned between said posterior surface of said lens and said laterally directed looped portions of said clips for fixation of the pseudophakos in the dye.
Claim 2
Dependent Claim
123 words
A pseudophakos comprising a lens having uninterrupted smoothly optically finished opposite anterior and posterior sides and a pair of open-ended tangentially directed holes, one extending parallel to the other adjacent opposite sides of said lens, an iris clip of wire having opposite ends extended into and fixed against accidental withdrawal from each of said holes, said clip being in the form of a loop extending from said holes rearwardly away from said posterior surface of said lens a substantial distance and thence generally laterally thereof whereby marginal portions of the iris diaphragm of an aphakic eye may be positioned between said posterior surface of said lens and said laterally directed looped portions of said clips for fixation of the pseudophakos in the dye.
Claim 3
Dependent Claim
15 words
A pseudophakos according to claim 1 wherein said lens is of generally circular peripheral configuration.
Claim 4
Dependent Claim
37 words
A pseudophakos according to claim 1 wherein said lens is provided with inwardly directed notches adjacent each of open ends of said tangentially directed holes and wherewith said lens is afforded the overall configuration of a cross.
Claim 5
Dependent Claim
41 words
A pseudophakos according to claim 1 wherein each of said iris clips is formed of a resilient shape-retaining material and said opposite ends thereof are fixed against accidental withdrawal from said holes under spring tension in said wires of said clips.
Claim 6
Dependent Claim
28 words
A pseudophakos according to claim 1 wherein said opposite ends of said iris clips are force-fitted into said holes in said lens for prevention of accidental withdrawal thereof.
Claim 7
Dependent Claim
27 words
A pseudophakos according to claim 1 wherein said opposite ends of each iris clip are juxtapositioned in a respective hole receiving the same and joined together therewithin.
Claim 8
Dependent Claim
65 words
An artificial intraocular lens having uninterrupted smoothly optically finished opposite anterior and posterior sides and a pair of open-ended tangentially directed holes one extending parallel to the other adjacent opposite sides of said lens, the edge of said lens being recessed inwardly adjacent each of opposite ends of each of said holes whereby said anterior and posterior surfaces are provided with corresponding generally cross-shaped configurations.
Claim 9
Dependent Claim
65 words
An artificial intraocular lens having uninterrupted smoothly optically finished opposite anterior and posterior sides and a pair of open-ended tangentially directed holes one extending parallel to the other adjacent opposite sides of said lens, the edge of said lens being recessed inwardly adjacent each of opposite ends of each of said holes whereby said anterior and posterior surfaces are provided with corresponding generally cross-shaped configurations.
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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |