US3866249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Posterior chamber artificial intraocular lens
Assignee: Individual
•
Filing: 1974-03-07
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Granted: 1975-02-18
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Expires: 1994-03-07
Abstract
Abstract An artificial intraocular lens for implantation in the posterior chamber of an eye after intracapsular or extracapsular lens extraction comprises a transparent optical zone portion shaped similar to the natural lens and a plurality of prongs protruding forwardly from the periphery thereof, wherein after implantation of the artificial intraocular lens the prongs extend through the iris to anchor the lens in the posterior chamber of the eye. The prongs protrude forwardly from the lens and are curved so that the outer ends of the prongs extend generally along the periphery of the lens, and the prongs are preferably arranged in pairs with the prongs in each pair extending in opposite directions along the periphery of the lens. A peripheral flange may be provided surrounding the optical zone portion for attaching the prongs to the lens, and a plurality of openings may be provided in the flange adjacent to the optical zone portion to permit passage of aqueous fluid from the ciliary body to the anterior chamber. Also disclosed is an insertion necklace comprising a semirigid loop passed through the openings in the flange surrounding the optical zone portion to embrace and support the lens during implantation thereof. A handle is connected to the loop for holding and manipulating the lens. The loop may be cut for removal of the insertion necklace after implantation of the lens.
Inventors
- 👤 Leonard Flom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:53
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1601; A61F2002/16965; A61F2002/1699; A61F2220/00; A61F2220/0008; A61F2220/0016
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
68 words
An artificial intraocular lens for implantation in the posterior chamber of an eye, the artificial intraocular lens comprising an optical zone portion fabricated of transparent material and shaped similar to a natural lens, and a plurality of prongs attached to the optical zone portion near the periphery thereof, the prongs protruding forwardly therefrom for insertion through the iris of the eye to hold and position the lens therein.
Claim 2
Dependent Claim
68 words
An artificial intraocular lens for implantation in the posterior chamber of an eye, the artificial intraocular lens comprising an optical zone portion fabricated of transparent material and shaped similar to a natural lens, and a plurality of prongs attached to the optical zone portion near the periphery thereof, the prongs protruding forwardly therefrom for insertion through the iris of the eye to hold and position the lens therein.
Claim 3
Dependent Claim
51 words
An artificial intraocular lens as defined in claim 1 and further comprising a groove formed in the outer periphery of the optical zone portion and an annular band formed integrally with the prongs, the annular band matingly received in the groove whereby the prongs are attached to the optical zone portion.
Claim 4
Dependent Claim
43 words
An artificial intraocular lens as defined in claim 1 and further comprising openings formed in the optical zone portion near the periphery thereof wherein the prongs are tightly received and held in the openings and are thereby attached to the optical zone portion.
Claim 5
Dependent Claim
66 words
An artificial intraocular lens as defined in claim 1 wherein the inner portions of the prongs adjacent to the optical zone portion protrude forwardly from the optical zone portion and wherein the prongs are curved so that the outer portions of the prongs extend along the periphery of the optical zone portion and generally parallel to the plane of the periphery of the optical zone portion.
Claim 6
Dependent Claim
73 words
An artificial intraocular lens as defined in claim 4 wherein the plurality of prongs is an even number of prongs arranged in pairs about the outer periphery of the optical zone portion, each pair of prongs comprising two prongs attached to the optical zone portion at adjacent points, and wherein the outer portions of the prongs in each pair of prongs extend in opposite directions along the periphery of the optical zone portion.
Claim 7
Dependent Claim
52 words
An artificial intraocular lens as defined in claim 1 wherein the inner portions of the prongs adjacent to the optical zone portion protrude forwardly from the optical zone portion and wherein the prongs are curved so that the outer portions of the prongs extend along the periphery of the optical zone portion.
Claim 8
Dependent Claim
73 words
An artificial intraocular lens as defined in claim 6 wherein the plurality of prongs is an even number of prongs arranged in pairs about the outer periphery of the optical zone portion,, each pair of prongs comprising two prongs attached to the optical zone portion at adjacent points, and wherein the outer portions of the prongs in each pair of prongs extend in opposite directions along the periphery of the optical zone portion.
Claim 9
Dependent Claim
21 words
An artificial intraocular lens as defined in claim 7 wherein the plurality of prongs comprises eight prongs arranged in four pairs.
Claim 10
Dependent Claim
48 words
An artificial intraocular lens as defined in claim 1 wherein the plurality of prongs is an even number of prongs arranged in pairs about the outer periphery of the optical zone portion, each pair of prongs comprising two prongs attached to the optical zone portion at adjacent points.
Claim 11
Dependent Claim
40 words
An artificial intraocular lens as defined in claim 9 wherein each pair of prongs is integral by virtue of a connecting portion extending therebetween and wherein the prongs are mounted by imbedding the connecting portion in the optical zone portion.
Claim 12
Dependent Claim
25 words
An artificial intraocular lens as defined in claim 9 wherein the pairs of prongs are evenly spaced about the periphery of the optical zone portion.
Claim 13
Dependent Claim
83 words
An artificial intraocular lens for implantation in the posterior chamber of an eye, the artificial intraocular lens comprising an optical zone portion fabricated of transparent material and shaped similar to a natural lens, a flange formed integrally with the optical zone portion and extending radially outwardly from the periphery of the optical zone portion, and a plurality of prongs attached to the flange, the prongs protruding forwardly therefrom for insertion through the iris of the eye to hold and position the lens therein.
Claim 14
Dependent Claim
83 words
An artificial intraocular lens for implantation in the posterior chamber of an eye, the artificial intraocular lens comprising an optical zone portion fabricated of transparent material and shaped similar to a natural lens, a flange formed integrally with the optical zone portion and extending radially outwardly from the periphery of the optical zone portion, and a plurality of prongs attached to the flange, the prongs protruding forwardly therefrom for insertion through the iris of the eye to hold and position the lens therein.
Claim 15
Dependent Claim
47 words
An artificial intraocular lens as defined in claim 12 and further comprising a groove formed in the outer periphery of the flange and an annular band formed integrally with the prongs, the annular band matingly received in the groove whereby the prongs are attached to the flange.
Claim 16
Dependent Claim
39 words
An artificial intraocular lens as defined in claim 12 and further comprising openings formed in the flange near the periphery thereof wherein the prongs are tightly received and held in the openings and are thereby attached to the flange.
Claim 17
Dependent Claim
44 words
An artificial intraocular lens as defined in claim 12 wherein the plurality of prongs is an even number of prongs arranged in pairs about the outer periphery of the flange, each paif of prongs comprising two prongs attached to the flange at adjacent points.
Claim 18
Dependent Claim
38 words
An artificial intraocular lens as defined in claim 15 wherein each pair of prongs is integral by virtue of a connecting portion extending therebetween and wherein the prongs are mounted by imbedding the connecting portion in the flange.
Claim 19
Dependent Claim
55 words
An artificial intraocular lens as defined in claim 12 wherein the inner portions of the prongs adjacent to the flange protrude forwardly from the flange and wherein the prongs are curved so that the outer portions of the prongs extend along the periphery of the flange and generally parallel to the plane of the flange.
Claim 20
Dependent Claim
63 words
An artificial intraocular lens as defined in claim 17 wherein the plurality of prongs is an even number of prongs arranged in pairs above the flange, each pair of prongs comprising two prongs attached to the flange at adjacent points, and wherein the outer portions of the prongs in each pair of prongs extend in opposite directions along the periphery of the flange.
Claim 21
Dependent Claim
46 words
An artificial intraocular lens as defined in claim 12 wherein the inner portions of the prongs adjacent to the flange protrude forwardly from the flange and wherein the prongs are curved so that the outer portions of the prongs extend along the periphery of the flange.
Claim 22
Dependent Claim
63 words
An artificial intraocular lens as defined in claim 19 wherein the plurality of prongs is an even number of prongs arranged in pairs about the flange, each pair of prongs comprising two prongs attached to the flange at adjacent points, and wherein the outer portions of the prongs in each pair of prongs extend in opposite directions along the peripherY of the flange.
Claim 23
Dependent Claim
21 words
An artificial intraocular lens as defined in claim 20 wherein the plurality of prongs comprises eight prongs arranged in four pairs.
Claim 24
Dependent Claim
23 words
An artificial intraocular lens as defined in claim 20 wherein the pairs of prongs are evenly spaced about the periphery of the flange.
Claim 25
Dependent Claim
51 words
An artificial intraocular lens as defined in claim 22 and further comprising a plurality of drain holes extending through the artificial intraocular lens near the intersection of the flange and the optical zone portion thereof, wherein a drain hole is positioned adjacent to the inner portions of each pair of prongs.
Claim 26
Dependent Claim
35 words
An artificial intraocular lens as defined in claim 12 and further comprising a plurality of drain holes extending through the artificial intraocular lens near the intersection of the flange and the optical zone portion thereof.
Claim 27
Dependent Claim
26 words
An artificial intraocular lens as defined in claim 24 wherein the plurality of drain holes are evenly spaced about the periphery of the optical zone portion.
Claim 28
Dependent Claim
75 words
An artificial intraocular lens as defined in claim 24 and further comprising an insertion necklace for holding and manipulating the artificial intraocular lens during the implantation thereof, the insertion necklace comprising a loop and a handle, the loop passing through two of the drain holes in the artificial intraocular lens wherein one portion of the loop embraces the rear surface of the optical zone portion and another portion of the loop extends to the handle.
Claim 29
Dependent Claim
31 words
An artificial intraocular lens as defined in claim 26 wherein the portion of the loop of the insertion necklace extending to the handle removeably engages at least one of the prongs.
Claim 30
Dependent Claim
33 words
An artificial intraocular lens as defined in claim 26 wherein the drain holes through which the loop passes are located substantially opposite from each other about the periphery of the optical zone portion.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |