Stent alignment during treatment of a bifurcation
First Claim
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1. A method for treating a bifurcation in a vessel, said method comprising:
- providing a first delivery catheter, the first delivery catheter comprising a first elongate shaft, a first radially expandable member coupled to a distal portion of the first elongate shaft, and a first radially expandable stent disposed over the first radially expandable member,wherein the first radially expandable stent has a sidewall with a side hole extending therethrough;
providing a second delivery catheter, the second delivery catheter comprising a second elongate shaft, a second radially expandable member coupled to a distal portion of the second elongate shaft, and a second radially expandable stent disposed over the second radially expandable member;
advancing the first and second delivery catheters simultaneously toward the bifurcation such that the first stent is disposed in one of a main branch or a side branch of the bifurcation, and the second stent is disposed in the other of the main branch or side branch of the bifurcation, wherein during the advancing, the second radially expandable stent is disposed distally away from the first radially expandable stent such that the first and second radially expandable stents do not overlap with one another;
retracting the second elongate shaft proximally such that the second radially expandable member passes through the side hole in the first radially expandable stent and at least a portion of the second radially expandable member is disposed under the first radially expandable stent;
radially expanding the first stent and the second stent from a collapsed configuration to an expanded configuration which supports the main branch and the side branch; and
overlapping the first and second radially expandable members with one another during the radial expansion.
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Abstract
A system for treating a bifurcation includes a first radially expandable stent and a second radially expandable stent. The first stent has a side hole and a plurality of lateral elements extending from the side hole. The second stent has a plurality of axial elements extending away from the proximal end of the second stent. The axial elements of the second stent interdigitate with the lateral elements of the first stent when both stents have been expanded.
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Citations
16 Claims
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1. A method for treating a bifurcation in a vessel, said method comprising:
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providing a first delivery catheter, the first delivery catheter comprising a first elongate shaft, a first radially expandable member coupled to a distal portion of the first elongate shaft, and a first radially expandable stent disposed over the first radially expandable member, wherein the first radially expandable stent has a sidewall with a side hole extending therethrough; providing a second delivery catheter, the second delivery catheter comprising a second elongate shaft, a second radially expandable member coupled to a distal portion of the second elongate shaft, and a second radially expandable stent disposed over the second radially expandable member; advancing the first and second delivery catheters simultaneously toward the bifurcation such that the first stent is disposed in one of a main branch or a side branch of the bifurcation, and the second stent is disposed in the other of the main branch or side branch of the bifurcation, wherein during the advancing, the second radially expandable stent is disposed distally away from the first radially expandable stent such that the first and second radially expandable stents do not overlap with one another; retracting the second elongate shaft proximally such that the second radially expandable member passes through the side hole in the first radially expandable stent and at least a portion of the second radially expandable member is disposed under the first radially expandable stent; radially expanding the first stent and the second stent from a collapsed configuration to an expanded configuration which supports the main branch and the side branch; and overlapping the first and second radially expandable members with one another during the radial expansion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification