Bifurcation aneurysm treatment stent with distal web
First Claim
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1. A stent device for introduction into and for treatment of a bifurcation aneurysm, comprising:
- a radially expandable elongated wire mesh tube having a proximal end and a distal end, said distal end being expandable into a cone shaped portion of a larger diameter than said proximal end; and
a web of material arranged across said distal end of said stent device for sealing an aneurysm at a neck portion thereof.
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Abstract
A stent device for introduction into a bifurcation aneurysm, comprising a radially expandable elongated wire mesh tube having a proximal end and a distal end. The distal end is expandable into a cone shaped portion of a larger diameter than the proximal end. A web of material is arranged across said distal end of said stent device for sealing an aneurysm at a neck portion thereof.
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Citations
20 Claims
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1. A stent device for introduction into and for treatment of a bifurcation aneurysm, comprising:
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a radially expandable elongated wire mesh tube having a proximal end and a distal end, said distal end being expandable into a cone shaped portion of a larger diameter than said proximal end; and
a web of material arranged across said distal end of said stent device for sealing an aneurysm at a neck portion thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of treating a bifurcation aneurysm comprising:
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introducing a microwire into said aneurysm;
introducing a waffle-cone-shapable microcatheter into said aneurysm over said microwire;
expanding a distal end of said microcatheter into a tapered waffle-cone shape within said bifurcation aneurysm; and
pivoting outwardly an annular array of anchoring struts from a circumferential array thereof spaced proximately adjacent said distal end of said catheter so as to anchor said distal end of said microcatheter within said aneurysm. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A stent device for introduction into and for treatment of a bifurcation aneurysm, comprising:
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a radially expandable elongated wire mesh tube having a proximal end and a distal end, said distal end being expandable into a cone-shapeable portion of a larger diameter than said proximal end, said stent having foraminous wall portions with openings therein of a first opening size;
a pierceable web of material arranged across said distal end of said stent device for sealing an aneurysm at a neck portion thereof, said web having foraminous portions with openings therein of a second opening size, said second opening size being smaller than said openings of said first opening size, said web sealing said aneurysm. - View Dependent Claims (19, 20)
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Specification