EP0306256A2
Expired / Lapsed
EP
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Bioprosthetic valve
Assignee: Koken Co Ltd
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Filing: 1988-08-30
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Granted: —
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Expires: 2008-08-30
Abstract
Abstract A bioprosthetic valve comprising a biological tissue containing collagen which has been crosslinked with a polyepoxy compound.
Inventors
- 👤 Eisaburo Imamura
- 👤 Yasuharu Noishiki
- 👤 Hitoshi Koyanagi
- 👤 Teruo Miyata
- 👤 Masayasu Furuse
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3683; A61L27/3687; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61K; A61K35/00; A61K35/12; A61K35/34; A61L2/00; A61L2/16; A61L2/18; A61L27/3604; A61L27/3625; A61L27/50; A61L27/507; A61L2103/00; A61L2103/05; A61L2400/00; A61L2400/02; Y; Y10; Y10S; Y10S623/00; Y10S623/915
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
17 words
A bioprosthetic valve comprising a biological tissue containing collagen which has been crosslinked with a polyepoxy compound.
Claim 2
Dependent Claim
17 words
A bioprosthetic valve comprising a biological tissue containing collagen which has been crosslinked with a polyepoxy compound.
Claim 3
Dependent Claim
16 words
A bioprosthetic valve according to claim 1, wherein the polyepoxy compound is a hydrophilic polyepoxy compound.
Claim 4
Dependent Claim
47 words
A bioprosthetic valve according to claim 1 or 2, wherein the polyepoxy compound is at least one of a polyglycidyl ether of a polyglycerol having a polymerization degree of from 1 to 3 and a polyglycidyl ether of a polyol selected from dihydric, trihydric and tetrahydric alcohols.
Claim 5
Dependent Claim
28 words
A bioprosthetic valve according to claim 3, wherein the polyepoxy compound is selected from glycerol diglycidyl ether, diglycerol triglycidyl ether, diglycerol tetraglycidyl ether and ethylene glycol glycidyl ether.
Claim 6
Dependent Claim
21 words
A bioprosthetic valve according to any of claims 1 to 4, wherein the biological tissue comprises a valve of an animal.
Claim 7
Dependent Claim
33 words
A bioprosthetic valve according to claim 5, wherein the valve of the animal is selected from porcine aortic valve, ovine aortic valve, bovine aortic valve, mitral valve, tricupsid valve or vena calval valve.
Claim 8
Dependent Claim
26 words
A bioprosthetic valve according to any of claims 1 to 6, wherein the valve has a valve cusp which has been formed of a membrane-like tissue.
Claim 9
Dependent Claim
20 words
A bioprosthetic valve according to claim 7, wherein the membrane-like tissue is selected from pericardium, dura mater, amnion or fascia.
Claim 10
Dependent Claim
31 words
A bioprosthetic valve according to any of claims 1 to 8, wherein the collagen has been crosslinked to an extent of from 5 to 90% with respect to an ε-amino group.
Claim 11
Dependent Claim
27 words
A bioprosthetic valve according to claim 9, wherein the collagen has been crosslinked to an extent of from 10 to 60% with respect to an ε-amino group.
References Cited (Backward Citations)
No citation records indexed.
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