US5326346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-cured urethane dimethacrylate ocular prosthesis
Assignee: The University of Texas System
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Filing: 1992-07-27
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Granted: 1994-07-05
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Expires: 2012-07-27
Abstract
Abstract An ocular prosthesis for use directly or as a component for an orbital prosthetic appliance to replace the eye piece consisting essentially of urethane dimethacrylate. Use of this acrylic resin polymerized with a visible light cure offers a clinically acceptable, clean and expedient way to construct this appliance. The method of construction is less time consuming compared to existing methods and utilizes a polymer with essentially no fugitive monomer or solvent. The prosthesis is a compatible alternative for patients experiencing methylmethacrylate sensitivity.
Inventors
- 👤 Aquileo L. Cortes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/141; A61L; A61L27/00; A61L27/14; A61L27/18; Y; Y10; Y10S; Y10S623/00; Y10S623/901
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
28 words
An ocular prosthesis comprising a polymerized urethane dimethacrylate solid shell having a convex surface molded in the shape of the cornea and sclera of a normal human eye.
Claim 2
Dependent Claim
28 words
An ocular prosthesis comprising a polymerized urethane dimethacrylate solid shell having a convex surface molded in the shape of the cornea and sclera of a normal human eye.
Claim 3
Dependent Claim
20 words
The ocular prosthesis of claim 1 wherein the solid shell is further defined as comprising silica and acylic resin beads.
Claim 4
Dependent Claim
38 words
An ocular prosthesis comprising: a solid shell simulating a sclera of a normal human eye, and a corneal shell coating simulating a cornea of a normal eye, wherein the shell and the shell coating comprise light-cured urethane dimethacrylate.
Claim 5
Dependent Claim
38 words
An ocular prosthesis comprising: a solid shell simulating a sclera of a normal human eye, and a corneal shell coating simulating a cornea of a normal eye, wherein the shell and the shell coating comprise light-cured urethane dimethacrylate.
Claim 6
Dependent Claim
26 words
An ocular prosthesis comprising a light-cured urethane dimethacrylate solid shell having a convex surface molded in the shape of the sclera of a normal human eye.
Claim 7
Dependent Claim
26 words
An ocular prosthesis comprising a light-cured urethane dimethacrylate solid shell having a convex surface molded in the shape of the sclera of a normal human eye.
Claim 8
Dependent Claim
36 words
The ocular prosthesis of claim 4 further comprising an iris disk, a pupil ocular button, and a corneal shell coating formed to represent the iris, the pupil and the cornea, respectively, of a normal human eye.
Claim 9
Dependent Claim
15 words
The ocular prosthesis of claim 5 wherein the corneal shell coating comprises light-cured urethane dimethacrylate.
Claim 10
Dependent Claim
12 words
The ocular prosthesis of claim 4 wherein the shell further comprises silica.
Claim 11
Dependent Claim
14 words
The ocular prosthesis of claim 4 wherein the shell further comprises acrylic resin beads.
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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) | 1997-07-04 | 1998-01-03 | 1998-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-04 | 2002-01-03 | 2002-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-04 | 2006-01-03 | 2006-07-05 | $7700.00 | Window Closed / Lapsed |