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US4446582A
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Intra-ocular implant
Assignee: Individual
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Filing: 1982-06-07
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Granted: 1984-05-08
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Expires: 2002-06-07
Abstract
Abstract An intra-ocular implant constituted by a lens provided with loops for fixation extending substantially radially outside the lens. According to one of the features of the invention, at least one of the front loops is constituted by two wires curved towards each other and terminated by sharp points which overlap in rest position.
Inventors
- 👤 Khalil Hanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/148; A61F2/16; A61F2002/1681; A61F2002/1683; A61F2002/1686
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
In an intra-ocular implant forming artificial lens constituted by a glass lens and at least one pair of front loops for fixation thereof starting substantially radially from the lens, each of said loops being constituted by a filiform element, said loop is constituted by two portions of elastic wire curved towards each other in their final portion, so that their ends overlap in rest position to form a closed loop, the ends of said final portions being sharpened to sharp points.
Claim 2
Dependent Claim
81 words
In an intra-ocular implant forming artificial lens constituted by a glass lens and at least one pair of front loops for fixation thereof starting substantially radially from the lens, each of said loops being constituted by a filiform element, said loop is constituted by two portions of elastic wire curved towards each other in their final portion, so that their ends overlap in rest position to form a closed loop, the ends of said final portions being sharpened to sharp points.
Claim 3
Dependent Claim
31 words
The intra-ocular implant of claim 1, wherein each of the loops forms an angle of about 10° to 20° with the plane of the lens which they intersect outside said lens.
Claim 4
Dependent Claim
60 words
The implant of claim 1, wherein each portion of elastic wire of a front loop is constituted by one of the terminal portions of a continuous wire passing through the lens and forming a rear loop, the other terminal portion of the wire also passing through the lens to constitute a portion of elastic wire of the other front loop.
Claim 5
Dependent Claim
19 words
The implant of claim 3, wherein the lens comprises four orifices for passage of each of the two wires.
Claim 6
Dependent Claim
19 words
The implant of claim 3, wherein the lens comprises three orifices for passage of each of said two wires.
Claim 7
Dependent Claim
19 words
The implant of claim 3, wherein the lens comprises two orifices for passage of each of the two wires.
Claim 8
Dependent Claim
23 words
The implant of claim 3, wherein the wires are bent so as to present, at orifice level, sections substantially perpendicular to said lens.
Claim 9
Dependent Claim
23 words
The implant of claim 7, wherein the sections comprise spacer elements whose thickness is greater than the diameter of the wires or orifices.
Claim 10
Dependent Claim
16 words
The implant of claim 8, wherein the spacer elements are located in front of the lens.
Claim 11
Dependent Claim
13 words
The implant of claim 8, wherein the spacers are located behind the lens.
Claim 12
Dependent Claim
30 words
The implant of claim 1, wherein it comprises only two diametrically opposite front loops, each being formed by a wire with ends with sharp points, overlapping each other at rest.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |