Method and system for fixation of endoluminal devices
First Claim
1. A method for deploying an endoluminal device in a lumen, the method comprising the steps of:
- (a) first deploying one or more collar stents in one or more anchor locations in the lumen; and
then (b) deploying the endoluminal device radially within the one or more collar stents.
2 Assignments
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Accused Products
Abstract
A system and method employs collar stents to implant an endoluminal device, such as a stent-graft, in a lumen. The system comprises at least one collar stent adapted to precondition a portion of the lumen for anchoring an endoluminal device having at least a portion adapted to be deployed radially within the collar stent. The method comprises first deploying one or more collar stents, and then deploying the endoluminal device radially within the one or more collar stents. In various embodiments, the collar stent may be radiopaque, may have inwardly protruding barbs for engaging the endoluminal device, and may have a region having a relatively low percentage of open area for bridging a portion of the main lumen having an intersecting lumen. The preconditioning step of implanting the collar stent may change the morphology of the lumen to more favorable morphology, such as from a non-circumferential geometry to a circumferential geometry.
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Citations
40 Claims
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1. A method for deploying an endoluminal device in a lumen, the method comprising the steps of:
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(a) first deploying one or more collar stents in one or more anchor locations in the lumen; and
then(b) deploying the endoluminal device radially within the one or more collar stents. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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- 17. A method for implantation of a stent-graft in a lumen, the method comprising preconditioning a portion of the lumen by implanting a collar stent prior to implanting the stent-graft, and then implanting the stent-graft so that at least a portion of the stent-graft overlaps the collar stent.
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20. A system for implantation of an endoluminal device in a lumen, the system comprising:
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at least one collar stent adapted to precondition a portion of the lumen for anchoring the endoluminal device; and
the endoluminal device having at least a portion adapted to be deployed radially within of the collar stent. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 40)
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38. A method for deploying an endoluminal device in a lumen having an anchor location with an inadequate amount of available fixation length in a wall of the lumen for implantation of the device, the method comprising the steps of:
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(a) deploying a stent in the anchor location with a first portion of the stent in contact with the lumen wall and a second portion of the stent positioned radially inward of the lumen wall, leaving a gap between the stent and the wall;
(b) allowing passage of a sufficient period of time for intravascular tissue growth to fill-in the gap between the stent and the lumen wall to increase the available fixation length; and
then(c) deploying the endoluminal device radially inward of the stent. - View Dependent Claims (39)
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Specification