Stent and catheter assembly and method for treating bifurcations
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Accused Products
Abstract
An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent.
13 Citations
52 Claims
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1-32. -32. (canceled)
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33. A catheter system for deploying a Y-shaped stent in a bifurcation, comprising:
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a catheter shaft having a proximal end and a distal end;
a bifurcated balloon attached to the distal end of said catheter shaft, said balloon having first and second branches, each branch having a distal end, said balloon having a first configuration wherein said distal ends of said branches converge and a second configuration wherein said distal ends of said branches diverge; and
a first guide wire for converting said balloon from said first configuration to said second configuration. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. A stent delivery system, comprising:
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a branched balloon having two distal ends that are biased so as to diverge from one another; and
a guide wire routed through said balloon so as to overcome said bias and releasably maintain said distal ends in a converging pattern. - View Dependent Claims (42, 43, 44, 45, 46, 47)
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48. A catheter system for deploying a Y-shaped stent in a bifurcation, comprising:
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a catheter shaft having a proximal end and a distal end;
a first balloon attached to the distal end of said catheter shaft;
a second balloon attached to the distal end of said catheter shaft;
a first guide wire routed through said balloons so as to releasably maintain the distal ends in a converging configuration. - View Dependent Claims (49, 50, 51, 52)
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Specification