Multi-stent and multi-balloon apparatus for treating bifurcations and methods of use
First Claim
1. A method for treating a bifurcated vessel in a patient, the bifurcated vessel having a main branch and a side branch, said method comprising:
- providing a first delivery catheter comprising a proximal first expandable member, a distal second expandable member, a proximal first stent, and a distal second stent,wherein the proximal first expandable member and distal second expandable member are disposed close to or at a distal end of the first delivery catheter,wherein the proximal first stent and the distal second stent are discrete stents, the proximal first stent disposed over the proximal first expandable member, and the distal second stent disposed over the distal second expandable member, andwherein a distal portion of the proximal first stent comprises a notched region, and a proximal portion of the distal second stent comprises a notched region, the notched regions being cut out portions of the distal portion of the proximal first stent and the proximal portion of the distal second stent, respectively, and the notched regions being adjacent one another to form a side hole in the proximal first stent and the distal second stent;
providing a second delivery catheter comprising a third expandable member and a third stent, the third expandable member disposed close to or at a distal end of the second delivery catheter,wherein the third stent is disposed over the third expandable member, andwherein the second delivery catheter passes through the side hole in the proximal first stent and the distal second stent;
advancing the first delivery catheter and the second delivery catheter toward the bifurcation;
positioning the proximal first stent, the distal second stent, and the third stent at the bifurcation such that the proximal first stent is disposed in the main branch, the distal second stent is disposed in the side branch, and the third stent is disposed in the main branch downstream of the bifurcation,wherein the side hole in the proximal first stent and the distal second stent is aligned with the main branch and faces downstream of the bifurcation;
radially expanding the distal second stent from a collapsed configuration to an expanded configuration;
radially expanding the proximal first stent from a collapsed configuration to an expanded configuration; and
radially expanding the third stent from a collapsed configuration to an expanded configuration.
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Accused Products
Abstract
A system for treating a bifurcated vessel that includes a first delivery catheter and a second delivery catheter. The first delivery catheter carries a proximal first stent and a distal second stent. The first delivery catheter also has a first elongate shaft, a proximal first expandable member with the proximal first stent disposed thereover, and a distal second expandable member with the distal second stent disposed thereover. The proximal first expandable member and distal second expandable member are independently expandable of one another. The second delivery catheter carries a third stent. The second delivery catheter also has a second elongate shaft, and a third expandable member with the third stent disposed thereover. The third expandable member is independently expandable of the proximal first expandable member and the distal second expandable member.
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Citations
19 Claims
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1. A method for treating a bifurcated vessel in a patient, the bifurcated vessel having a main branch and a side branch, said method comprising:
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providing a first delivery catheter comprising a proximal first expandable member, a distal second expandable member, a proximal first stent, and a distal second stent, wherein the proximal first expandable member and distal second expandable member are disposed close to or at a distal end of the first delivery catheter, wherein the proximal first stent and the distal second stent are discrete stents, the proximal first stent disposed over the proximal first expandable member, and the distal second stent disposed over the distal second expandable member, and wherein a distal portion of the proximal first stent comprises a notched region, and a proximal portion of the distal second stent comprises a notched region, the notched regions being cut out portions of the distal portion of the proximal first stent and the proximal portion of the distal second stent, respectively, and the notched regions being adjacent one another to form a side hole in the proximal first stent and the distal second stent; providing a second delivery catheter comprising a third expandable member and a third stent, the third expandable member disposed close to or at a distal end of the second delivery catheter, wherein the third stent is disposed over the third expandable member, and wherein the second delivery catheter passes through the side hole in the proximal first stent and the distal second stent; advancing the first delivery catheter and the second delivery catheter toward the bifurcation; positioning the proximal first stent, the distal second stent, and the third stent at the bifurcation such that the proximal first stent is disposed in the main branch, the distal second stent is disposed in the side branch, and the third stent is disposed in the main branch downstream of the bifurcation, wherein the side hole in the proximal first stent and the distal second stent is aligned with the main branch and faces downstream of the bifurcation; radially expanding the distal second stent from a collapsed configuration to an expanded configuration; radially expanding the proximal first stent from a collapsed configuration to an expanded configuration; and radially expanding the third stent from a collapsed configuration to an expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification