Patent EP0656196A1 successfully refreshed from Google Patents.
EP0656196A1
Expired / Lapsed
EP
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Implantable tubular prosthesis
Assignee: Boston Scientific Scimed Inc
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Filing: 1994-12-02
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Granted: —
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Expires: 2014-12-02
Abstract
Abstract The present invention provides a soft-tissue prosthesis (10) which is formed from a tubular textile substrate (2) and a liner (4). The liner (4) is affixed to the intraluminal surface of the tubular textile portion (2) of the soft-tissue prosthesis to form a fluid-tight barrier on the intraluminal surface of the prosthesis (10). The liner (4) is preferably formed from a polymer. Thus, the soft-tissue prosthesis (10) formed in accordance with the present invention provides the advantages of both a textile prosthesis and a polymer prosthesis.
Inventors
- 👤 Peter J. Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 08:46
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/507; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L27/14; A61L27/16; A61L27/28; A61L27/34; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; C08L23/12; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L67/00; C08L75/00; C08L75/04; C08L83/00; C08L83/04; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903; Y10S623/915; Y10S623/92
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
38 words
An implantable, tubular, luminal prosthesis comprising: a tubular textile substrate having an intraluminal surface; and a liner affixed to the intraluminal surface of the textile substrate wherein the liner is capable of rendering the tubular prosthesis substantially fluid-tight.
Claim 2
Dependent Claim
18 words
A prosthesis as claimed in claim 1, wherein the liner is microporous and has a smooth intraluminal surface.
Claim 3
Dependent Claim
29 words
A prosthesis as claimed in claim 1 or 2, wherein the liner is formed from a polymer, more particularly one selected from polytetrafluoroethylenes, urethanes, silicones, polyesters and mixtures thereof.
Claim 4
Dependent Claim
33 words
A prothesis as claimed in any preceding claim, wherein the liner has an inner surface and an outer surface defining therebetween a wall having a thickness of from 10 to 50 microns (µm).
Claim 5
Dependent Claim
25 words
A prosthesis as claimed in any preceding claim, wherein the textile substrate is one of woven, knitted or braided form to create a tubular structure.
Claim 6
Dependent Claim
30 words
A prosthesis as claimed in any preceding claim, wherein the textile substrate is formed from a thermoplastic polymer, particularly one selected from polyesters, polytetrafluoroethylenes, polyethylenes, polyurethanes, polypropylenes and mixtures thereof.
Claim 7
Dependent Claim
32 words
A prosthesis as claimed in any preceding claim, wherein the textile substrate includes fibres having a melting temperature and bonding compatibility substantially similar to the material from which the liner is formed.
Claim 8
Dependent Claim
42 words
A prosthesis as claimed in any preceding claim, wherein the textile substrate includes a fusible fibre having a low melting temperature, lower than that of other fibres in the textile substrate such that, when heated, the fusible fibre fuses to the liner.
Claim 9
Dependent Claim
42 words
A prosthesis as claimed in claim 8, wherein the liner contains micropores and wherein the fusible fibre has melt flow properties which allow the melted fibre to flow into the micropores of the liner, thereby securing the liner to the textile substrate.
Claim 10
Dependent Claim
18 words
A prosthesis as claimed in any preceding claim, wherein the textile substrate is a woven single-velour tubular structure.
Claim 11
Dependent Claim
87 words
A process for producing a tubular luminal prosthesis, comprising the steps of: forming a tubular polymeric liner; positioning a tubular textile substrate over an outer surface of the liner, the liner and the textile substrate being formed from materials which have a similar melting temperature and bonding compatibility; heating the liner and textile substrate to a temperature sufficient to melt at least a portion of one of the textile substrate and liner; and cooling the textile substrate and liner thereby fusing the liner to the textile substrate.
Claim 12
Dependent Claim
86 words
A process for producing a tubular luminal prosthesis, comprising the steps of: forming a tubular PTFE liner; positioning a tubular textile substrate over an outer surface of the liner, the textile substrate including a meltable yarn having a melting temperature lower than expanded PTFE; heating the textile substrate and liner to a temperature sufficient to cause the yarn to melt and to flow into the pores of the liner; and allowing the textile substrate and liner to cool, thereby fusing the liner to the textile substrate.
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