Patent US4851003A successfully refreshed from Google Patents.
US4851003A
Expired / Lapsed
US
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Corneal implant lens with fixation holes
Assignee: Individual
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Filing: 1988-01-05
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Granted: 1989-07-25
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Expires: 2008-01-05
Abstract
Abstract Intracorneal or epicorneal lens with a plurality of fixation holes spaced about the outer circumference of the lens. The lens can be of a soft material, such as hydrogel, a high refractive index material such as polysulfone, polycarbonate, or polyethylene, or any other material. The lens can also be coated with any suitable material, such as hydrogel or glycosaminoglycan.
Inventors
- 👤 Richard L. Lindstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/15; A61F2/145; A61F2/1451; A61L; A61L27/00; A61L27/28; A61L27/34; A61L2430/00; A61L2430/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
37 words
A corneal implant lens comprising an optic having a plurality of fixation holes about a periphery, the optic including a coating of a material which enhances the growth of corneal epithelium cells into and about said holes.
Claim 2
Dependent Claim
37 words
A corneal implant lens comprising an optic having a plurality of fixation holes about a periphery, the optic including a coating of a material which enhances the growth of corneal epithelium cells into and about said holes.
Claim 3
Dependent Claim
24 words
The lens of claim 1 wherein the coating material is selected from the group of fibronectin, laminen, a glycosaminoglycan or a type IV collagen.
Claim 4
Dependent Claim
16 words
The lens of claim 2 wherein the coating is on the anterior surface of the lens.
Claim 5
Independent Claim
55 words
A method for enhancing the growth and adhesion of corneal epithelium cells to a corneal implant lens implanted in the cornea, the method comprising providing the lens with a plurality of fixation holes about its periphery, and a coating of a material which enhances the growth of corneal epithelium cells into and about said holes.
Claim 6
Independent Claim
55 words
A method for enhancing the growth and adhesion of corneal epithelium cells to a corneal implant lens implanted in the cornea, the method comprising providing the lens with a plurality of fixation holes about its periphery, and a coating of a material which enhances the growth of corneal epithelium cells into and about said holes.
Claim 7
Dependent Claim
23 words
The method of claim 4 wherein the material is selected from the group of fibronectin, laminen, a glycosaminoglycan or a tyoe IV collagen.
Claim 8
Dependent Claim
17 words
The method of claim 5 wherein the material is coated on the anterior surface of the lens.
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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |