Patent US3975779A successfully refreshed from Google Patents.
US3975779A
Expired / Lapsed
US
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Artificial intraocular lens and supporting system therefor
Assignee: American Optical Corp
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Filing: 1975-06-16
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Granted: 1976-08-24
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Expires: 1995-06-16
Abstract
Abstract A lens suitable for implantation in the eye is provided with a supporting system which accommodates to normal function of a dynamic pupil. The supporting system includes flexible spring-like members structurally designed to follow a dilating and contracting pupil while providing longitudinal fixation and centration of the lens.
Inventors
- 👤 William Richards
- 👤 Bernard Grolman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1694; A61F2002/1681
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
128 words
A pseudophakos comprising: a lens; a plurality of slender and resilient supporting arms affixed to said lens adjacent its periphery and each extending along one side thereof; each of said arms terminating with an iris clip portion for receiving the irido-pupillary margin when the pseudophakos is implanted for use; said arms being lightly spring biased toward the periphery of said lens and so proportioned as to resiliently urge their corresponding clip portions against said pupillary margin with a gentle holding force when the pupil is approximately maximally dilated and to follow said pupillary margin to the extent of maximum pupillary contraction substantially without affect upon normal pupil function whereby dislocation of the implanted pseudophakos occurring as a result of dilation and contraction of a dynamic pupil is prevented.
Claim 2
Dependent Claim
128 words
A pseudophakos comprising: a lens; a plurality of slender and resilient supporting arms affixed to said lens adjacent its periphery and each extending along one side thereof; each of said arms terminating with an iris clip portion for receiving the irido-pupillary margin when the pseudophakos is implanted for use; said arms being lightly spring biased toward the periphery of said lens and so proportioned as to resiliently urge their corresponding clip portions against said pupillary margin with a gentle holding force when the pupil is approximately maximally dilated and to follow said pupillary margin to the extent of maximum pupillary contraction substantially without affect upon normal pupil function whereby dislocation of the implanted pseudophakos occurring as a result of dilation and contraction of a dynamic pupil is prevented.
Claim 3
Dependent Claim
73 words
A pseudophakos according to claim 1 wherein said lens has a plurality of openings adjacent its periphery and said supporting arms are disposed posteriorly of said lens, each arm including a bight extending through one of said openings and a forward extension disposed anteriorly of said lens, said extensions being successively interconnected whereby said holding force against said pupillary margin is cushioned by the combined resiliencies of said arms and their respective extensions.
Claim 4
Dependent Claim
39 words
A pseudophakos according to claim 2 wherein said openings in said lens are three in number and are substantially equally radially and circumferentially spaced thereabout, said supporting arms and corresponding forward extensions thereof respectively also being three in number.
Claim 5
Dependent Claim
21 words
A pseudophakos according to claim 1 wherein said slender and resilient supporting arms are formed of a substantially clear plastic material.
Claim 6
Dependent Claim
17 words
A pseudophakos according to claim 1 wherein said slender and resilient supporting arms are formed of metal.
Claim 7
Dependent Claim
89 words
An irido-capsular supporting system for an artificial intraocular lens comprising: an annular array of a plurality of wire components; each component having an anterior section, an intermediate bight and a posterior lens supporting arm terminating with an iris clip portion, said bight of each component being adapted to extend through a peripherally disposed opening in a lens intended to receive said supporting system whereby, said lens may be captured between said anterior sections and arms, the later being adapted to receive the irido-pupillary margin within respective clip portions thereof.
Claim 8
Dependent Claim
89 words
An irido-capsular supporting system for an artificial intraocular lens comprising: an annular array of a plurality of wire components; each component having an anterior section, an intermediate bight and a posterior lens supporting arm terminating with an iris clip portion, said bight of each component being adapted to extend through a peripherally disposed opening in a lens intended to receive said supporting system whereby, said lens may be captured between said anterior sections and arms, the later being adapted to receive the irido-pupillary margin within respective clip portions thereof.
Claim 9
Dependent Claim
19 words
An irido-capsular support according to claim 6 wherein said array of wire components is comprised of three such components.
Claim 10
Dependent Claim
19 words
An irido-capsular support according to claim 6 wherein said wire components are formed of a substantially clear plastic material.
Claim 11
Dependent Claim
15 words
An irido-capsular support according to claim 6 wherein said wire components are formed of metal.
Claim 12
Dependent Claim
58 words
An irido-capsular supporting system according to claim 6 wherein said anterior sections of said wire components are arcuately shaped and each terminate with a hook portion, said hook portion of one of said components being adapted to engage the bight of an adjacent component in said annular array thereof when said supporting system is applied to said lens.
Claim 13
Dependent Claim
25 words
A pseudophakos according to claim 1 wherein said lens has a plurality of chordal openings adjacent its periphery with said supporting arms proximally fixed therewithin.
Claim 14
Dependent Claim
42 words
A pseudophakos according to claim 11 wherein said arms are permanently bent adjacent their respective chordal openings each in a direction generally reversely of and toward parallelism with its extension in a chordal opening when said arm is in a relaxed condition.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |