Multi-unit stent-graft
First Claim
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1. A tubular endoluminal prosthesis comprising:
- a plurality of stent-graft units with a proximal stent-graft unit overlapping partly and coupled to an immediate adjacent distal stent-graft unit, said stent-graft units comprising a supporting stent coupled to a tubular graft.
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Abstract
A new stent-graft is provided with an improved structure design which comprises multiple stent-graft units with/without one or two open stents sutured to combine the uniform prosthesis without a connector bar in the place where flexing required. Each stent-graft unit comprises a stent sutured to a tubular graft. The new stent-graft can bend, provides a smooth inner surface and is stable after placement within an inner lumen of the human body.
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Citations
24 Claims
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1. A tubular endoluminal prosthesis comprising:
a plurality of stent-graft units with a proximal stent-graft unit overlapping partly and coupled to an immediate adjacent distal stent-graft unit, said stent-graft units comprising a supporting stent coupled to a tubular graft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A bifurcated endoluminal prosthesis comprising:
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a trunk stent-graft portion having a first iliac branch portion and a second iliac branch portion, said trunk stent-graft portion comprising;
a trunk graft made of biocompatible material defining a tube with two branches on the distal end; and
p1 a mini-wave stent sutured inside a proximal section of the trunk graft;
one or more supporting stents disposed adjacent to and distal to the mini-wave stent within the proximal section of the trunk graft and one or more branch supporting stent sutured to the first iliac branch portion of the trunk graft with the distal most branch supporting stent being connected to the mini-wave stent using a first bar. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. The bifurcated endoluminal prosthesis of claim a distal most stent-graft unit has a different outer diameter m that of the proximal most stent-graft unit.
Specification