US4150471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making artificial intraocular lens
Assignee: American Optical Corp
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Filing: 1976-09-13
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Granted: 1979-04-24
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Expires: 1996-09-13
Abstract
Abstract A lens suitable for implantation in the eye is provided with laterally extending iris clips each having at least one of its ends locked within the body of the lens. The clips are initially extended through close-fitting openings, terminally beaded and forcefully retracted sufficiently to bury their beaded ends within the lens body. Cold flow of lens material around the beaded ends locks the clips in place.
Inventors
- 👤 William Richards
- 👤 Bernard Grolman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:22
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/56; B29C65/565; B29C66/00; B29C66/69; A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683; A61F2002/1686; B29C66/70; B29C66/71; B29C66/712; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49945
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
The method of locking an iris clip of wire in a lens of material suitable for implantation in the eye comprising the steps of: forming in said lens an opening of a predetermined diametral size; producing a rounded bead-like terminal enlargement upon one end of said iris clip, said enlargement being of substantially greater cross-sectional size greater than the diametral size of said opening; and forcing said enlargement into said opening in a manner and to an extent causing a cold flow of adjacent material of said lens laterally over the major portion of said enlargement, said flow at least partially closing said opening immediately over said enlargement thereby locking said clip against longitudinal displacement in said lens.
Claim 2
Independent Claim
118 words
The method of locking an iris clip of wire in a lens of material suitable for implantation in the eye comprising the steps of: forming in said lens an opening of a predetermined diametral size; producing a rounded bead-like terminal enlargement upon one end of said iris clip, said enlargement being of substantially greater cross-sectional size greater than the diametral size of said opening; and forcing said enlargement into said opening in a manner and to an extent causing a cold flow of adjacent material of said lens laterally over the major portion of said enlargement, said flow at least partially closing said opening immediately over said enlargement thereby locking said clip against longitudinal displacement in said lens.
Claim 3
Dependent Claim
88 words
The method according to claim 1 wherein said opening in said lens is extended completely therethrough and prior to said step of producing a terminal enlargement upon one end of said iris clip, said end is inserted in one direction completely through said opening, said step of producing said terminal enlargement is thereafter effected exteriorly of said opening and said step of forcing said enlargement into said opening is carried out by urging said end of said iris clip in a direction reversely of said direction of insertion.
Claim 4
Dependent Claim
67 words
The method according to claim 2 wherein a plurality of iris clips of wire are to be locked in the material of said lens and a plurality of openings are formed in said lens, termini of said plurality of clips are enlarged and forced into preselected openings to an extent each causing said displacement of material of the lens and locking of all said clips in place.
Claim 5
Dependent Claim
105 words
The method according to claim 2 wherein one end of each of a pair of said iris clips are juxtapositioned and together directed through a single opening in said lens, a first of said juxtapositioned ends is provided with said terminal enlargement, the second of said juxtapositioned ends is bent laterally to hook over an edge of said single opening and said terminally enlarged end is forced into said opening a distance sufficient to cause simultaneous locking of said pair of iris clips in place by displacement of the material of said lens and of said second juxtapositioned end of said pair of iris clips.
Claim 6
Dependent Claim
83 words
The method according to claim 2 wherein one end of each of a pair of said iris clips is directed into one of a pair of closely related parallel openings in said lens, one of said ends of said clips is provided with said terminal enlargement and forced into the material of said lens a distance sufficient to cause simultaneous locking of said pair of clips by displacement of the material of said lens and the material of the other of said clips.
Claim 7
Dependent Claim
74 words
The method according to claim 2 wherein one end of each of a pair of said iris clips is directed into one of a pair of closely related parallel openings in said lens, said ends of said clips are both provided with said terminal enlargement and forced into the material of said lens a distance sufficient to cause simultaneous locking of said pair of clips by displacement of the material of said lens therearound.
Claim 8
Dependent Claim
16 words
The method according to claim 1 wherein said opening in said lens extends only partially therethrough.
Claim 9
Dependent Claim
15 words
The method according to claim 1 wherein said opening in said lens extends completely therethrough.
References Cited (Backward Citations)
US1225343A
Cited
US3994027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |