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US6346119B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Graft equipped with stent

Assignee: Ube Corp
•
Filing: 1998-07-17
•
Granted: 2002-02-12
•
Expires: 2018-07-17
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Abstract

Abstract A graft with a stent, includes: a stent composed of a resilient wire having a supporting frame comprising a wire having a zigzag shape forming top and bottom portions; and tubes being made of plain woven of polyester resin fibers and having a thickness of 20 μm to 100 μm. The tubes are disposed between inner surface and outer surface of the stent, and the inner tube surface and the outer tube surface are partially adhered to each other by a polyester resin. The graft is free from hindrance of blood from flowing by kink and/or arctation in a corner such as an arched portion, a curved portion, and meandering portion, is resistant to expansion and contraction and bending, and is fit to a shape of a blood vessel of a human body. The graft is usable for a total percutaneous intravascular surgery because it can be inserted into a sheath having a small diameter because of a thin artificial blood vessel, and is prone not to have leakage from a connection with a blood vessel. The stent does not directly contact an organism and is capable of being indwelt in an organism.

Inventors

  • 👤 Kunio Kuwahara
  • 👤 Hideki Furuya
  • 👤 Hiroyuki Ikeda

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:56
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2002/075; A61F2220/00; A61F2220/0025; A61F2220/0075

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 112 words
A graft with a stent, comprising: a stent composed of an elastic wire rod having a supporting frame comprising a wire having a zigzag shape terminating in end portions; and an inner tube and an outer tube each made of plain woven polyester resin fibers and having a thickness of 20μ to 100 μm, said stent being disposed between said inner tube and said outer tube; said stent, inner tube, and outer tube being concentrically arranged, and an outer surface of the inner tube and an inner surface of the outer tube being adhered to each other by a polyester resin only at spaced discrete points within the boundaries of said stent.
Claim 2
Dependent Claim 112 words
A graft with a stent, comprising: a stent composed of an elastic wire rod having a supporting frame comprising a wire having a zigzag shape terminating in end portions; and an inner tube and an outer tube each made of plain woven polyester resin fibers and having a thickness of 20μ to 100 μm, said stent being disposed between said inner tube and said outer tube; said stent, inner tube, and outer tube being concentrically arranged, and an outer surface of the inner tube and an inner surface of the outer tube being adhered to each other by a polyester resin only at spaced discrete points within the boundaries of said stent.
Claim 3
Dependent Claim 44 words
A graft with a stent according to claim 1 , wherein the outer surface of the inner tube and the inner surface of the outer tube are adhered to each other by injecting a polyester resin from an outer surface of the outer tube.
Claim 4
Dependent Claim 42 words
A graft with a stent according to claim 1 or 2 , wherein the outer surface of the inner tube and the inner surface of the outer tube are only adhered to each other at top and/or bottom portions of the stent.
Claim 5
Dependent Claim 19 words
A graft with stent according to claim 1 or 2 , wherein the graft is an artificial blood vessel.
Claim 6
Dependent Claim 17 words
A graft with stent according to claim 3 , wherein the graft is an artificial blood vessel.
Claim 7
Dependent Claim 75 words
A graft with a stent according to any one of claims 1 or 2 , wherein the wire having a zigzag shape comprises any or both of (i) a plurality of rings each comprising wire having a zigzag shape having top and bottom portions and (ii) a spiral comprising wire having a zigzag shape having top and bottom portions, adjacent top and bottom portions of the rings, spiral, or both, being connected to each other.
Claim 8
Dependent Claim 42 words
A graft with a stent according to claim 6 , wherein said top and bottom portions of said zigzag shape of said wire of said rings, said spiral, or both said rings and said spirals, are connected to each other by clamping.
Claim 9
Dependent Claim 42 words
A graft with a stent according to claim 6 , wherein said top and bottom portions of said zigzag shape of said wire of said rings, said spiral, or both said rings and said spirals, are connected to each other by crossing.

References Cited (Backward Citations)

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JPH09173468A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-02-11 2005-08-13 2006-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-02-11 2009-08-13 2010-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-02-11 2013-08-13 2014-02-12 $7700.00 Window Closed / Lapsed

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