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US4731077A
Expired / Lapsed
US
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Universal implant for artificial eyes
Assignee: Individual
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Filing: 1987-06-25
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Granted: 1988-03-15
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Expires: 2007-06-25
Abstract
Abstract An improved implant for replacing volume and transmitting motility from the remaining eye muscles to artificial eyes after eye removal. As compared to earlier implants, the mass has been redistributed which makes the implant safer and the tissues around the implant and prosthetic eye more natural appearing. The mounds of the implant are lower and more rounded, and the main body of the implant is less spherical so as to more accurately and completely fill the void left in the equatorial region around the implant by an enucleated eye. The implant remains short in the anterior-posterior dimension thereby leaving adequate space for a cosmetic prosthetic eye. Also, the implant is provided with suture holes to provide for improved surgical techniques for permanently retaining the implant in place.
Inventors
- 👤 Edwin L. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:36
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/141
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
191 words
An implant for use with a prosthetic eye comprising a main body having top and bottom edges that are straight across and parallel to each other joined by rounded corners to sides that are straight and parallel to each other to form a substantially square configuration that has an anterior portion and a smooth convex posterior surface, a plurality of circumferentially-spaced outwardly-tapered mounds forming a part of the anterior portion, a mound being located at each of the rounded corners of the main body and terminating in a rounded extremity, the anterior portion also having formed between the mounds shallow valleys to accommodate the severed ends of the four rectus muscles of the eye during the implant procedure, one valley extending between the top and bottom edges and the other valley extending between the sides of the main body, the two valleys crossing at the center of the anterior portion to form a relatively flat central portion, and a pair of interconnected suture holes formed in each of the valleys in the central portion to provide for securing the ends of the rectus muscles to each other and to the implant.
Claim 2
Dependent Claim
191 words
An implant for use with a prosthetic eye comprising a main body having top and bottom edges that are straight across and parallel to each other joined by rounded corners to sides that are straight and parallel to each other to form a substantially square configuration that has an anterior portion and a smooth convex posterior surface, a plurality of circumferentially-spaced outwardly-tapered mounds forming a part of the anterior portion, a mound being located at each of the rounded corners of the main body and terminating in a rounded extremity, the anterior portion also having formed between the mounds shallow valleys to accommodate the severed ends of the four rectus muscles of the eye during the implant procedure, one valley extending between the top and bottom edges and the other valley extending between the sides of the main body, the two valleys crossing at the center of the anterior portion to form a relatively flat central portion, and a pair of interconnected suture holes formed in each of the valleys in the central portion to provide for securing the ends of the rectus muscles to each other and to the implant.
Claim 3
Dependent Claim
52 words
The implant of claim 1 in which there is provided at the base of each of the mounds along the inside surface near the central portion of the main body a pair of interconnected suture holes to receive sutures or not depending upon the decision of the surgeon performing the implant procedure.
Claim 4
Dependent Claim
27 words
The implant of claim 1 in which the height of the mounds above the valleys are relatively low, and the mounds slope very gradually into the valleys.
Claim 5
Dependent Claim
18 words
The implant of claim 3 in which all the exterior surfaces of the implant are smooth and curved.
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) | 1991-03-15 | 1991-09-14 | 1992-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-15 | 1995-09-14 | 1996-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-15 | 1999-09-14 | 2000-03-15 | $7700.00 | Window Closed / Lapsed |