Patent US4976731A successfully refreshed from Google Patents.
US4976731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for orbital implant
Assignee: Individual
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Filing: 1987-10-19
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Granted: 1990-12-11
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Expires: 2007-10-19
Abstract
Abstract Highly satisfactory orbital implants comprising granular hydroxyapatite and spheres of porous, low density hydroxyapatite are described. The implants are useful in enucleation and evisceration procedures. In enucleation procedures, the implants can be sutured to the eye muscles by either insertion in a scleral sac or other suitable container or, in the cast of spherical hydroxyapatite, sutured to the eye muscles by means of holes in the spheres. After healing, the implant is drilled to receive a peg for fixing an artificial eye to the implant to complete the prosthesis.
Inventors
- 👤 Arthur C. Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:21
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/141; A61L; A61L27/00; A61L27/02; A61L27/12; A61L27/50; A61L27/56; A61F2310/00; A61F2310/00005; A61F2310/00179; A61F2310/00293
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
29 words
An orbital implant comprising a monolithic sphere of sterile, low density, porous hydroxyapatite of a size suited for insertion into the orbital socket to replace an eye removed therefrom.
Claim 2
Dependent Claim
29 words
An orbital implant comprising a monolithic sphere of sterile, low density, porous hydroxyapatite of a size suited for insertion into the orbital socket to replace an eye removed therefrom.
Claim 3
Dependent Claim
17 words
An implant according to claim 1, wherein the sphere is obtained from coral or other synthetic means.
Claim 4
Dependent Claim
25 words
An implant according to claim 1 wherein the material is sewn within a scleral sac, preserved dura, or other homologous or autologous collagen graft material.
Claim 5
Dependent Claim
16 words
An implant according to claim 1 wherein the sphere is adapted to receive an artificial eye.
Claim 6
Dependent Claim
26 words
An implant according to claim 4 wherein the sphere is provided with a hole to receive a peg for fixing an artificial eye to the implant.
Claim 7
Dependent Claim
24 words
An implant according to claim 1 wherein the sphere is provided with holes to permit the direct suturing of eye muscles to the sphere.
Claim 8
Dependent Claim
26 words
An implant according to claim 6 wherein the sphere is provided with a hole to receive a peg for fixing an artificial eye to the implant.
Claim 9
Dependent Claim
17 words
A prosthesis comprising an orbital implant according to claim 1 to which is fixed an artificial eye.
Claim 10
Dependent Claim
41 words
A surgical process comprising evisceration of an eye and filling the scleral sac with a monolithic sphere of sterile, porous, low density hydroxyapatite of a size suited for insertion into the scleral sac to replace the contents of the eviscerated eye.
Claim 11
Dependent Claim
41 words
A surgical process comprising evisceration of an eye and filling the scleral sac with a monolithic sphere of sterile, porous, low density hydroxyapatite of a size suited for insertion into the scleral sac to replace the contents of the eviscerated eye.
Claim 12
Dependent Claim
16 words
A process according to claim 9 wherein the implant is adapted to receive an artificial eye.
Claim 13
Dependent Claim
25 words
A process according to claim 10 wherein the implant is provided with a hole to receive a peg to which is fixed the artificial eye.
Claim 14
Dependent Claim
15 words
A process according to claim 10 wherein the artificial eye is fixed to the implant.
Claim 15
Dependent Claim
56 words
A surgical process comprising enucleation of an eye and its replacement by an orbital implant comprising a monolithic sphere of sterile, porous, low density hydroxyapatite of a size suited for replacement of the enucleated eye sewn within a container selected from the group consisting essentially of a scleral sac, preserved dura, homologous or autologous graft material.
Claim 16
Dependent Claim
56 words
A surgical process comprising enucleation of an eye and its replacement by an orbital implant comprising a monolithic sphere of sterile, porous, low density hydroxyapatite of a size suited for replacement of the enucleated eye sewn within a container selected from the group consisting essentially of a scleral sac, preserved dura, homologous or autologous graft material.
Claim 17
Dependent Claim
15 words
A process according to claim 13 wherein the container is sutured to the eye muscles.
Claim 18
Dependent Claim
23 words
A process according to claim 13 wherein the sphere is provided with holes and, using such holes, sutured directly to the eye muscles.
Claim 19
Dependent Claim
36 words
A process according to claim 13 wherein the sphere is sewn within a container selected from a scleral sac, preserved dura or other homologous or autologous graft material and the container sutured to the eye muscles.
Claim 20
Dependent Claim
20 words
A process according to claims 13, 14, 15 or 16 wherein the implant is adapted to receive an artificial eye.
Claim 21
Dependent Claim
25 words
A process according to claim 17 wherein the implant is provided with a hole to receive a peg to which is fixed the artificial eye.
Claim 22
Dependent Claim
15 words
A process according to claim 18 wherein the artificial eye is fixed to the implant.
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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) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |