Patent US5207705A successfully refreshed from Google Patents.
US5207705A
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Prosthesis of foam polyurethane and collagen and uses thereof
Assignee: The Brigham and Women's Hospital Inc
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Filing: 1989-12-08
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Granted: 1993-05-04
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Expires: 2009-12-08
Abstract
Abstract An implantable medical prosthesis is provided having a uniform mixture of foam polyurethane and collagen. The prosthesis can be shaped into an elongated hollow body tube useful for implantation in an animal. Alternatively, the prosthesis can be shaped into biocompatible units useful as soft-tissue replacements or as matrices for sustained-release vehicles.
Inventors
- 👤 Leonard A. Trudell
- 👤 Anthony D. Whittemore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:33
CPC Classifications
C; C08; C08L; C08L89/00; C08L89/04; C08L89/06; A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L; A61L27/00; A61L27/14; A61L27/26; A61L27/50; A61L27/56; A61F2/24; A61F2002/041; A61F2002/047; A61F2002/048; A61F2/28; A61F2002/2835; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30069; A61F2002/3007; A61F2002/30667; A61F2002/30677; A61F2250/00; A61F2250/0058; A61F2250/0067; A61F2310/00; A61F2310/00005; A61F2310/00365; Y; Y10; Y10S; Y10S521/00; Y10S521/905
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
49 words
A prosthesis useful for implantation in an animal, wherein said prosthesis comprises: at least one layer of a uniform mixture of closed-cell foam polyurethane and collagen in the shape of an elongated hollow body tube, said hollow body tube being open at both ends and defining a confined-flow passageway.
Claim 2
Dependent Claim
49 words
A prosthesis useful for implantation in an animal, wherein said prosthesis comprises: at least one layer of a uniform mixture of closed-cell foam polyurethane and collagen in the shape of an elongated hollow body tube, said hollow body tube being open at both ends and defining a confined-flow passageway.
Claim 3
Dependent Claim
23 words
The prosthesis of claim 1, wherein said prosthesis further comprises two or more layers of a uniform mixture of foam polyurethane and collagen.
Claim 4
Dependent Claim
18 words
The prosthesis of claim 1, wherein said prosthesis further comprises an outer layer which contains a silicone elastomer.
Claim 5
Dependent Claim
18 words
The prosthesis of claim 1, wherein the confined-flow passageway has an inner diameter of 10 mm or less.
Claim 6
Dependent Claim
18 words
The prosthesis of claim 1, wherein the confined-flow passageway has an inner diameter of 5 m or less.
Claim 7
Dependent Claim
14 words
The prosthesis of any one of claims 2-5, wherein said prosthesis contains an antibiotic.
Claim 8
Dependent Claim
14 words
The prosthesis of any one of claims 2-5, wherein said prosthesis contains a hormone.
Claim 9
Dependent Claim
15 words
The prosthesis of any one of claims 2-5, wherein said prosthesis contains an immunosuppressant agent.
Claim 10
Independent Claim
34 words
A method for implanting a vascular prosthesis which comprises suturing a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen into a blood vessel, tissue or other organ.
Claim 11
Independent Claim
34 words
A method for implanting a vascular prosthesis which comprises suturing a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen into a blood vessel, tissue or other organ.
Claim 12
Independent Claim
33 words
A method for implanting a ureteral prosthesis which comprises replacing the ureter, or a portion thereof, with a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen.
Claim 13
Independent Claim
33 words
A method for implanting a ureteral prosthesis which comprises replacing the ureter, or a portion thereof, with a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen.
Claim 14
Independent Claim
33 words
A method for implanting a urethral prosthesis which comprises replacing the urethra, or a portion thereof, with a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen.
Claim 15
Independent Claim
33 words
A method for implanting a urethral prosthesis which comprises replacing the urethra, or a portion thereof, with a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen.
Claim 16
Independent Claim
34 words
A method for implanting a biliary prosthesis which comprises replacing the bile duct, or a portion thereof, with a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen.
Claim 17
Independent Claim
34 words
A method for implanting a biliary prosthesis which comprises replacing the bile duct, or a portion thereof, with a prosthesis having at least one layer containing a uniform mixture of foam polyurethane and collagen.
Claim 18
Independent Claim
26 words
The method of any one of claims 9-12, wherein said prosthesis further comprises two or more layers of a uniform mixture of foam polyurethane and collagen.
Claim 19
Independent Claim
21 words
The method of any one of claims 9-12, wherein said prosthesis further comprises an outer layer which contains a silicone elastomer.
Claim 20
Independent Claim
16 words
The method of any one of claims 9-12, wherein said prosthesis further comprises closed-cell foam polyurethane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |