Stent and catheter assembly and method for treating bifurcations
First Claim
1. An apparatus for treating a bifurcated region of a body lumen, comprising:
- a catheter having a proximal end and a distal end;
a first guide wire extending from near said distal end of said catheter; and
a second guide wire extending from near said distal end of said catheter and releasably linked to said first guide wire by a structure defining two lumens, each configured to receive one of said guide wires and one of said lumens having a sealed distal end.
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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. In one embodiment, a stent delivery assembly is provided for implanting a Y-shaped stent in a bifurcated vessel. A dual balloon Y-shaped catheter is provided having two expandable members. The catheter is delivered over a guide wire while a restraining member holds the expandable members together for low profile delivery.
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Citations
15 Claims
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1. An apparatus for treating a bifurcated region of a body lumen, comprising:
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a catheter having a proximal end and a distal end;
a first guide wire extending from near said distal end of said catheter; and
a second guide wire extending from near said distal end of said catheter and releasably linked to said first guide wire by a structure defining two lumens, each configured to receive one of said guide wires and one of said lumens having a sealed distal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for treating a bifurcated region of a body lumen, comprising:
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a catheter having a proximal end and a distal end;
a first expandable member disposed near the distal end of said catheter;
a second expandable member disposed near the distal end of said catheter;
a first guide wire lumen associated with said first expandable member;
a second guide wire lumen associated with said second expandable member and having a distal end;
a section of a third guide wire lumen associated with said first guide wire lumen and having a proximal end distal to said distal end of said second guide wire lumen and distal end that is sealed; and
a guide wire extending through said second guide wire lumen and into said section of said third guide wire lumen. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification