Multi-stent and multi-balloon apparatus for treating bifurcations and methods of use
First Claim
1. A system for treating a bifurcated vessel in a patient, the bifurcated vessel having a main branch and a side branch, the system comprising:
- a first delivery catheter carrying a first stent, the first stent comprising a proximal stent and a distal stent, the first delivery catheter also having a first elongate shaft with a proximal end, a distal end, a lumen extending through the first elongate shaft, a discrete proximal expandable member with the proximal stent disposed thereover, and a discrete distal expandable member with the distal stent disposed thereover, the proximal and distal expandable members disposed adjacent the distal end of the first elongate shaft,wherein the proximal and distal expandable members each have a collapsed configuration and a radially expanded configuration, the collapsed configuration of the proximal and distal expandable members having a profile suitable for advancement through a blood vessel, and the expanded configuration of the proximal and distal expandable members having a larger profile than the profile of the collapsed configuration of the proximal and distal expandable members, andwherein the proximal and distal stents are two discrete stents, and wherein a proximal end of the distal stent has a notched region and a distal end of the proximal stent has notched region such that when the notched regions are adjacent one another a side hole is formed in the first stent,wherein the proximal and distal stents each have a collapsed configuration suitable for delivery to the bifurcation and a radially expanded configuration adapted to engage and support a vessel wall at the bifurcation or adjacent thereto,wherein the proximal and distal expandable members are independently expandable of one another; and
a second delivery catheter carrying a second stent, the second stent being a discrete stent, the second delivery catheter also having a second elongate shaft with a proximal end, a distal end, and a second expandable member with the second stent disposed thereover, the second expandable member disposed adjacent the distal end of the second elongate shaft,wherein the second expandable member has a collapsed configuration and a radially expanded configuration, the collapsed configuration of the second expandable member having a profile suitable for advancement through a blood vessel, and the expanded configuration of the second expandable member having a larger profile than the profile in the collapsed configuration of the second expandable member,wherein the second elongate shaft is slidably disposed in the lumen of the first elongate shaft and passes through the side hole in the first stent when the proximal and distal stents are in the collapsed configuration of the proximal and distal stents and when the proximal and distal expandable members are in the collapsed configuration of the proximal and distal expandable members, andwherein the second expandable member is independently expandable of the proximal and the distal expandable members.
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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
18 Claims
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1. A system for treating a bifurcated vessel in a patient, the bifurcated vessel having a main branch and a side branch, the system comprising:
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a first delivery catheter carrying a first stent, the first stent comprising a proximal stent and a distal stent, the first delivery catheter also having a first elongate shaft with a proximal end, a distal end, a lumen extending through the first elongate shaft, a discrete proximal expandable member with the proximal stent disposed thereover, and a discrete distal expandable member with the distal stent disposed thereover, the proximal and distal expandable members disposed adjacent the distal end of the first elongate shaft, wherein the proximal and distal expandable members each have a collapsed configuration and a radially expanded configuration, the collapsed configuration of the proximal and distal expandable members having a profile suitable for advancement through a blood vessel, and the expanded configuration of the proximal and distal expandable members having a larger profile than the profile of the collapsed configuration of the proximal and distal expandable members, and wherein the proximal and distal stents are two discrete stents, and wherein a proximal end of the distal stent has a notched region and a distal end of the proximal stent has notched region such that when the notched regions are adjacent one another a side hole is formed in the first stent, wherein the proximal and distal stents each have a collapsed configuration suitable for delivery to the bifurcation and a radially expanded configuration adapted to engage and support a vessel wall at the bifurcation or adjacent thereto, wherein the proximal and distal expandable members are independently expandable of one another; and a second delivery catheter carrying a second stent, the second stent being a discrete stent, the second delivery catheter also having a second elongate shaft with a proximal end, a distal end, and a second expandable member with the second stent disposed thereover, the second expandable member disposed adjacent the distal end of the second elongate shaft, wherein the second expandable member has a collapsed configuration and a radially expanded configuration, the collapsed configuration of the second expandable member having a profile suitable for advancement through a blood vessel, and the expanded configuration of the second expandable member having a larger profile than the profile in the collapsed configuration of the second expandable member, wherein the second elongate shaft is slidably disposed in the lumen of the first elongate shaft and passes through the side hole in the first stent when the proximal and distal stents are in the collapsed configuration of the proximal and distal stents and when the proximal and distal expandable members are in the collapsed configuration of the proximal and distal expandable members, and wherein the second expandable member is independently expandable of the proximal and the distal expandable members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification