US4470160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast gel implantable prosthesis
Assignee: Individual
•
Filing: 1980-11-21
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Granted: 1984-09-11
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Expires: 2000-11-21
Abstract
Abstract A cast elastomer gel implantable prosthesis for implantation in the human body. The cohesive cast gel prosthesis is formed for subcutaneous implantation and may be subsequently coated with a membrane-thin elastomer or a dissolvable envelope so that when it is implanted, it will retain its natural softness after the human tissue capsule forms around the prosthesis.
Inventors
- 👤 Joseph F. Cavon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:32
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/12; A61L; A61L27/00; A61L27/28; A61L27/34; Y; Y10; Y10S; Y10S128/00; Y10S128/21
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
65 words
A prosthesis for implantation in a human body comprising: a homogeneous gel elastomer formed to fit the shape and size of a cavity in the human body; said elastomer gel being cohesive and having a consistency as measured by a penetrometer of less than about 30 mm; and a dissolvable envelope around said gel form implant which dissolves in a period of time after implantation.
Claim 2
Dependent Claim
65 words
A prosthesis for implantation in a human body comprising: a homogeneous gel elastomer formed to fit the shape and size of a cavity in the human body; said elastomer gel being cohesive and having a consistency as measured by a penetrometer of less than about 30 mm; and a dissolvable envelope around said gel form implant which dissolves in a period of time after implantation.
Claim 3
Dependent Claim
31 words
A prosthesis according to claim 1 wherein said gel form implant is substantially circular and has an ovular cross-sectional shape whereby said gel form may be used as a mammary implant.
Claim 4
Dependent Claim
23 words
A prosthesis according to claim 2, wherein said gel form implant includes integrally attached fixation patches for securing said implant to body tissue.
Claim 5
Dependent Claim
29 words
A prosthesis according to claim 1 wherein said gel form implant has a consistency as measured by a penetrometer in the range of approximately 0.1 mm to 29 mm.
Claim 6
Dependent Claim
30 words
The prosthesis according to claim 1 wherein said dissolvable envelope is comprised of a material selected from the group consisting of gel foam, oxidized regenerated cellulose, polyglycolic acid and polyglactin.
Claim 7
Dependent Claim
19 words
The prosthesis according to claim 5 including a topical thrombin with said dissolvable envelope to minimize bleeding after implantation.
Claim 8
Independent Claim
80 words
A method of implanting a natural feeling prosthesis in a human body comprising: forming said prosthesis of cohesive cast gel in the shape and size desired; encapsulating said cohesive cast gel prosthesis in a dissolvable material; making an incision in the human body at the area to be implanted; inserting said cohesive cast gel implant at the area of the human body desired; closing the incision whereby the human body forms a tissue capsule around said cohesive cast gel implant.
Claim 9
Independent Claim
80 words
A method of implanting a natural feeling prosthesis in a human body comprising: forming said prosthesis of cohesive cast gel in the shape and size desired; encapsulating said cohesive cast gel prosthesis in a dissolvable material; making an incision in the human body at the area to be implanted; inserting said cohesive cast gel implant at the area of the human body desired; closing the incision whereby the human body forms a tissue capsule around said cohesive cast gel implant.
Claim 10
Dependent Claim
36 words
The method according to claim 7 wherein said step of encapsulating comprises encapsulating said cohesive cast gel implant in a material selected from the group consisting of gel foam oxidized regenerated cellulose, polyglycolic acid and polyglactin.
Claim 11
Dependent Claim
20 words
The method according to claim 8 in which said dissolvable material includes a topical thrombin to minimize bleeding after implantation.
Claim 12
Dependent Claim
33 words
The method according to claim 7 in which said prosthesis is formed in a substantially circular shape having a substantially ovular cross-sectional shape whereby said prosthesis may be used as a mammary implant.
Claim 13
Dependent Claim
20 words
The method according to claim 10 including attaching fixation patches to said prosthesis for securing said prosthesis to body tissue.
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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |