US4126904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial lens and method of locating on the cornea
Assignee: Individual
•
Filing: 1977-03-31
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Granted: 1978-11-28
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Expires: 1997-03-31
Abstract
Abstract An artificial lens and method of locating the lens on the cornea. The optical portion is adapted for location on the central anterior corneal surface and is dimensioned to overlie substantially less than the total surface area of the cornea. The haptic portion is adapted for fixation to the cornea or an adjacent portion of the eyeball. In a preferred embodiment the haptic portion comprises a pair of ribbons or tabs superiorly and inferiorly attached to the cornea periphery. The lens moves with the cornea and is small enough that satisfactory corneal oxygenation is obtained. Various embodiments of the lens enable various types of attachment to the eyeball.
Inventors
- 👤 Dennis D. Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/145; A61F2/142; A61F2/1453; A61F2/16; A61F2002/1681; A61F2002/1689; A61F2002/169
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
70 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion extending from said optical portion and including means adapted to extend through a portion of the eyeball for fixation of said haptic portion to the eyeball.
Claim 2
Dependent Claim
70 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion extending from said optical portion and including means adapted to extend through a portion of the eyeball for fixation of said haptic portion to the eyeball.
Claim 3
Dependent Claim
29 words
An artificial lens according to claim 1 wherein said haptic portion comprises a pair of oppositely extending tabs each having a width approximating the width of said optical portion.
Claim 4
Dependent Claim
23 words
An artificial lens according to claim 1 wherein said haptic portion is annular, and said means comprise openings adapted to receive fastening elements.
Claim 5
Dependent Claim
53 words
An artificial lens according to claim 1 wherein said haptic portion comprises a pair of oppositely extending tabs each having a width approximating the width of said optical portion, and each having a length such that their outer extremities are adapted to overlie a portion of the sclera for fixation to the sclera.
Claim 6
Dependent Claim
23 words
An artificial lens according to claim 1 wherein said haptic portion is undercut to reduce its potential area of contact with the cornea.
Claim 7
Dependent Claim
63 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion including a plurality of tabs extending from said optical portion, said tabs having openings adapted to receive fastening elements.
Claim 8
Dependent Claim
63 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion including a plurality of tabs extending from said optical portion, said tabs having openings adapted to receive fastening elements.
Claim 9
Dependent Claim
23 words
An artificial lens according to claim 6 wherein said openings are relatively large to reduce the potential area of contact with the cornea.
Claim 10
Dependent Claim
66 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion including a plurality of tabs extending from said optical portion, said tabs having notches adapted to serve as anchorages for fastener elements.
Claim 11
Dependent Claim
66 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion including a plurality of tabs extending from said optical portion, said tabs having notches adapted to serve as anchorages for fastener elements.
Claim 12
Dependent Claim
81 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion having a posterior surface curvature complementary to the anterior surface curvature of the cornea for direct contact therewith, said optical portion being dimensioned to overlie less than the total anterior surface of the cornea; and a marginal haptic portion extending from said optical portion and including means enabling fixation of said haptic portion to the eyeball.
Claim 13
Dependent Claim
81 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion having a posterior surface curvature complementary to the anterior surface curvature of the cornea for direct contact therewith, said optical portion being dimensioned to overlie less than the total anterior surface of the cornea; and a marginal haptic portion extending from said optical portion and including means enabling fixation of said haptic portion to the eyeball.
Claim 14
Independent Claim
118 words
A method of locating on the cornea an artificial lens provided with an optical portion having a posterior surface area substantially less than the anterior surface area of the cornea and characterized by a curvature complemental to such anterior surface, and further provided with a marginal haptic portion extending outwardly of said optical portion, comprising the following steps: applying said artificial lens to the anterior surface of the cornea and arranging said optical portion to overlie the pupillary central zone of the cornea; and attaching said haptic portion to the portion of the eyeball adjacent said haptic portion by means extending through a portion of the eyeball to fix said optical portion upon the cornea for movement therewith.
Claim 15
Independent Claim
118 words
A method of locating on the cornea an artificial lens provided with an optical portion having a posterior surface area substantially less than the anterior surface area of the cornea and characterized by a curvature complemental to such anterior surface, and further provided with a marginal haptic portion extending outwardly of said optical portion, comprising the following steps: applying said artificial lens to the anterior surface of the cornea and arranging said optical portion to overlie the pupillary central zone of the cornea; and attaching said haptic portion to the portion of the eyeball adjacent said haptic portion by means extending through a portion of the eyeball to fix said optical portion upon the cornea for movement therewith.
Claim 16
Independent Claim
131 words
A method of locating on the cornea an artificial lens provided with an optical portion having a posterior surface area substantially less than the anterior surface area of the cornea and characterized by a curvature complemental to such anterior surface, and further provided with a marginal haptic portion extending outwardly of said optical portion, comprising the following steps: applying said artificial lens to the anterior surface of the cornea and arranging said optical portion to overlie the pupillary central zone of the cornea; and attaching said haptic portion to the portion of the eyeball adjacent said haptic portion by passage of surgical staples through one or more layers of said cornea and coupling of said staples to said haptic portion to fix said optical portion upon the cornea for movement therewith.
Claim 17
Independent Claim
131 words
A method of locating on the cornea an artificial lens provided with an optical portion having a posterior surface area substantially less than the anterior surface area of the cornea and characterized by a curvature complemental to such anterior surface, and further provided with a marginal haptic portion extending outwardly of said optical portion, comprising the following steps: applying said artificial lens to the anterior surface of the cornea and arranging said optical portion to overlie the pupillary central zone of the cornea; and attaching said haptic portion to the portion of the eyeball adjacent said haptic portion by passage of surgical staples through one or more layers of said cornea and coupling of said staples to said haptic portion to fix said optical portion upon the cornea for movement therewith.
Claim 18
Independent Claim
128 words
A method of locating on the cornea an artificial lens provided with an optical portion having a posterior surface area substantially less than the anterior area of the cornea and characterized by a curvature complemental to such anterior surface, and further provided with a marginal haptic portion extending outwardly of said optical portion, comprising the following steps: applying said artificial lens to the anterior surface of the cornea and arranging said optical portion to overlie the pupillary central zone of the cornea; and attaching said haptic portion to the portion of the eyeball adjacent said haptic portion by passage of surgical sutures through one or more layers of said cornea and through openings in said haptic portion to fix said optical portion upon the cornea for movement therewith.
Claim 19
Independent Claim
128 words
A method of locating on the cornea an artificial lens provided with an optical portion having a posterior surface area substantially less than the anterior area of the cornea and characterized by a curvature complemental to such anterior surface, and further provided with a marginal haptic portion extending outwardly of said optical portion, comprising the following steps: applying said artificial lens to the anterior surface of the cornea and arranging said optical portion to overlie the pupillary central zone of the cornea; and attaching said haptic portion to the portion of the eyeball adjacent said haptic portion by passage of surgical sutures through one or more layers of said cornea and through openings in said haptic portion to fix said optical portion upon the cornea for movement therewith.
Claim 20
Dependent Claim
22 words
A method according to claim 12 wherein said surgical sutures are passed through superiorly and inferiorly located peripheral portions of the cornea.
Claim 21
Dependent Claim
67 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion including a plurality of tabs extending from said optical portion and having openings formed by the passage of fastening elements through said tabs.
Claim 22
Dependent Claim
67 words
An artificial lens for eyes, said lens comprising: an optical portion configured for placement upon the central anterior surface of the cornea, said optical portion being dimensioned to overlie less than the total anterior surface area of the cornea; and a marginal haptic portion including a plurality of tabs extending from said optical portion and having openings formed by the passage of fastening elements through said tabs.
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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |