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EP0128501A2
Expired / Lapsed
EP
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Artificial vessel and process for preparing the same
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1984-06-05
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Granted: —
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Expires: 2004-06-05
Abstract
Abstract An artificial vessel made of an elastomer having a network structure over the entire thickness of the vessel wall from the inner surface to the outer surface, and having a compliance of 0.1 to 0.8.
Inventors
- 👤 Kazuaki Kira
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 21:20
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61L27/18; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/062; A61L27/50; A61L27/56; B; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/09; B29K; B29K2021/00; B29K2105/00; B29K2105/0058; B29K2105/0073
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
35 words
An artificial vessel made of an elastomer having a network structure over the entire thickness of the vessel wall from the inner surface to the outer surface, and having a compliance of 0.1 to 0.8.
Claim 2
Dependent Claim
35 words
An artificial vessel made of an elastomer having a network structure over the entire thickness of the vessel wall from the inner surface to the outer surface, and having a compliance of 0.1 to 0.8.
Claim 3
Dependent Claim
101 words
In a process for preparing an artificial vessel by extruding an elastomer solution from an annular nozzle together with an inside coagulating liquid, and immediately or after passing through a dry space, bringing the extrudate into contact with an outside coagulating liquid, the improvement which comprises preparing the solution having a cloud point by adding a poor solvent for the elastomer, extruding the solution at a temperature of more than the cloud point, and maintaining at least one of the inside coagulating liquid, the dry space and the outside coagulating liquid at a temperature of not more than the cloud point.
Claim 4
Dependent Claim
101 words
In a process for preparing an artificial vessel by extruding an elastomer solution from an annular nozzle together with an inside coagulating liquid, and immediately or after passing through a dry space, bringing the extrudate into contact with an outside coagulating liquid, the improvement which comprises preparing the solution having a cloud point by adding a poor solvent for the elastomer, extruding the solution at a temperature of more than the cloud point, and maintaining at least one of the inside coagulating liquid, the dry space and the outside coagulating liquid at a temperature of not more than the cloud point.
Claim 5
Dependent Claim
23 words
The process of Claim 2, wherein said elastomer solution contains a pore-forming agent at 1 to 250 % by weight of the elastomer.
References Cited (Backward Citations)
No citation records indexed.
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