Bifurcation stent and method of positioning in a body lumen
First Claim
1. A method of deploying a bifurcation stent at a vascular bifurcation of a main vessel into first and second branch vessels, the method comprising:
- partially deploying a bifurcation stent at the bifurcation, the stent expandable from a reduced diameter to an expanded diameter, the stent comprising a plurality of distal struts extending around a distal portion of the stent;
advancing the partially deployed stent towards the branch vessels so the stent at least partially straddles the carina; and
deploying the stent at the bifurcation by positioning distal peaks formed by at least some of the distal struts at least about 1 mm distal of the carina, such that when the stent is fully deployed, at least some of the distal struts extend past the carina.
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Abstract
A method of deploying a bifurcation stent at a vascular bifurcation of a main vessel into first and second branch vessels includes: positioning a bifurcation stent at a vascular bifurcation, the bifurcation stent expandable from a reduced diameter to an expanded diameter, the bifurcation stent comprising a first end, a second end, and a marker near the first end, wherein the first end diameter is larger than the second end diameter when the bifurcation stent is expanded, and wherein the bifurcation stent is positioned such that the marker is approximately aligned with a carinal plane at the vascular bifurcation; partially expanding the first end of the bifurcation stent; adjusting the position of the bifurcation stent such that the marker is positioned past the carinal plane and towards the first branch vessel; and deploying the bifurcation stent at the bifurcation. Devices are also disclosed.
137 Citations
10 Claims
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1. A method of deploying a bifurcation stent at a vascular bifurcation of a main vessel into first and second branch vessels, the method comprising:
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partially deploying a bifurcation stent at the bifurcation, the stent expandable from a reduced diameter to an expanded diameter, the stent comprising a plurality of distal struts extending around a distal portion of the stent; advancing the partially deployed stent towards the branch vessels so the stent at least partially straddles the carina; and deploying the stent at the bifurcation by positioning distal peaks formed by at least some of the distal struts at least about 1 mm distal of the carina, such that when the stent is fully deployed, at least some of the distal struts extend past the carina. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of deploying a stent at a bifurcation of a main vessel to two branch vessels, the two branch vessels forming a carina at the bifurcation, the method comprising:
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positioning a bifurcation stent at a vascular bifurcation, the bifurcation stent comprising proximal and distal segments, the proximal and distal segments each comprising a plurality of struts that form peaks, wherein the struts of the distal segment are longer than struts of the proximal segment; partially expanding the bifurcation stent; and deploying the partially expanded bifurcation stent at the bifurcation by positioning distal peaks of at least some of the struts of the distal segment at least about 1 mm distal of the carina, such that at least some of the peaks formed by the struts of the distal segment are positioned past the carina. - View Dependent Claims (8, 9, 10)
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Specification