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US 11,589,975 B1Granted
Small diameter vascular prosthesis
AssigneeBipore Medical Devices, Inc.
InventorDurmus Koch
Life of this patent
Estimating the term…
Abstract
A small diameter vascular prosthesis includes an outer textile graft, an intermediate self-supporting coil or stent and an inner microporous layer. The outer textile graft allows for tissue ingrowth. The inner microporous layer provides blood impermeability without preclotting the prosthesis. The coil or stent provides kink resistance and resistance again collapsing of the outer textile graft and the inner microporous layer.
Claims19
A vascular prosthesis comprising:
- a tubular graft comprising a tubular textile wall having a plurality of crimps defined by a plurality of helical peaks and valleys and having biocompatible yarns in a textile construction, the wall having an inner surface and an opposed outer surface;
- a self-supporting, collapsing-resistant metallic coil of a helically wound metallic wire having an inner portion and an opposed outer portion, the outer portion of the metallic coil being disposed and juxtaposingly and directly secured to at least a portion of the inner surface of the tubular textile wall, the metallic coil having interstices;
- and
- a microporous layer securably disposed about the inner portion of the metallic coil and juxtaposingly and directly secured at portions of the inner surface of the tubular textile wall proximal to the interstices of the metallic coil to provide a fluid tight implantable prosthesis.
1 more element
A vascular prosthesis consisting of:
- a tubular graft comprising a tubular textile wall having a plurality of crimps defined by a plurality of helical peaks and valleys and having biocompatible yarns in a textile construction, the wall having an inner surface and an opposed outer surface;
- a self-supporting, non-collapsing metallic coil of a helically wound metallic wire having an inner portion and an opposed outer portion, the outer portion of the metallic coil being disposed and juxtaposingly and directly secured to at least a portion of the inner surface of the tubular textile wall, the metallic coil having interstices;
- a microporous layer securably disposed about the inner portion of the metallic coil;
- and
- a thermoplastic elastomer disposed over a portion of the microporous layer and underneath a portion of the inner portion of the metallic coil to secure said portion of metallic coil to said inner portion of the metallic coil;
- wherein other portions of the microporous layer proximal to the interstices of the metallic coil and distal from the thermoplastic elastomer are disposed at and secured to portions of the inner surface of the tubular textile wall thereat to provide a fluid tight implantable prosthesis.
3 more elements
A vascular prosthesis consisting essentially of:
- a tubular graft comprising a tubular textile wall having a plurality of crimps defined by a plurality of helical peaks and valleys and having biocompatible yarns in a textile construction, the wall having an inner surface and an opposed outer surface;
- a self-supporting, non-collapsing metallic coil of a helically wound, planar ribbon having an inner portion and an opposed outer portion, the outer portion of the metallic coil being disposed and juxtaposingly secured to at least a portion of the inner surface of the tubular textile wall, the metallic coil having interstices;
- and
- a microporous layer securably disposed about the inner portion the metallic coil and having portions disposed at portions of the inner surface of the tubular textile wall proximal to the interstices of the metallic coil;
- wherein said portions of the microporous layer are juxtaposingly and directly secured to said portions of the inner surface of the textile tubular wall to provide a fluid tight implantable prosthesis;
- and
- wherein the microporous layer comprises polytetrafluoroethylene or expanded polytetrafluoroethylene.
4 more elements
Dependencies are inferred from the claim text.