STENT AND CATHETER ASSEMBLY AND METHOD FOR TREATING BIFURCATIONS
First Claim
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1. A stent system for treating a bifurcated vessel having a main vessel and two branch vessels, comprising:
- a first catheter having an expandable balloon;
a second catheter having an expandable balloon arranged such that said balloon of said first catheter is adjacent said balloon of said second catheter;
a first expandable stent disposed about both said balloon of said first catheter and said balloon of said second catheter;
a second expandable stent, disposed about the balloon of one of said catheters and distal to said first expandable stent.
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Abstract
An improved stent system for treating a bifurcation. Up to three stents are mounted on two parallel balloon catheters wherein a proximal stent is disposed about both balloons while two distal stents are each disposed about one of the balloons. Such configuration enhances the flexibility of the assembly to facilitate its advancement through tortuous vasculature, while the structural independence of the stents maximizes the systems ability to spread into a wide range of bifurcation angles. A single link between each distal stent and the proximal stent may be relied upon to maintain relative stent position during deployment.
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Citations
24 Claims
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1. A stent system for treating a bifurcated vessel having a main vessel and two branch vessels, comprising:
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a first catheter having an expandable balloon; a second catheter having an expandable balloon arranged such that said balloon of said first catheter is adjacent said balloon of said second catheter; a first expandable stent disposed about both said balloon of said first catheter and said balloon of said second catheter; a second expandable stent, disposed about the balloon of one of said catheters and distal to said first expandable stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A stent system for treating a bifurcated vessel having a main vessel and two branch vessels, comprising:
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a first catheter having an expandable balloon; a second catheter having an expandable balloon arranged such that said balloon of said first catheter is adjacent said balloon of said second catheter; and a first expandable stent disposed about both said balloon of said first catheter and said balloon of said second catheter.
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19. A method of stenting a bifurcation within a vasculature, comprising:
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providing a pair of expandable balloons mounted on catheters; mounting a first stent so as to encompass both said balloons; mounting a second stent distal to said first stent and so as to encompass one of said balloons; advancing said balloon mounted stents through said vasculature to said bifurcation such that one of said pair of balloons enters one branch of said bifurcation and the other of said pair of balloons with said second stent mounted thereon enters the other branch of said bifurcation; inflating said balloons so as to expand said stents; deflating said balloons; and retracting said catheters.
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20. A method of stenting a bifurcation within a vasculature, comprising:
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providing a pair of expandable balloons mounted on catheters; mounting a first stent so as to encompass both said balloons; mounting a second stent distal to said first stent and so as to encompass one of said balloons; mounting a third stent distal to said first stent, adjacent to said second stent so as to encompass the other of said balloons; advancing said balloon mounted stents through said vasculature to said bifurcation such that one of said pair of balloons enters one branch of said bifurcation and the other of said pair of balloons with said second stent mounted thereon enters the other branch of said bifurcation; inflating said balloons so as to expand said stents; deflating said balloons; and retracting said catheters. - View Dependent Claims (21, 22, 23, 24)
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Specification