Inflatable bifurcation stent
First Claim
Patent Images
1. A stent expandable from an unexpanded state to an expanded state wherein in the expanded state the stent has a diameter that is greater than the diameter in the unexpanded state, the stent comprising:
- a substantially tubular body, the body defining a lumen and a longitudinal axis therethrough, the body comprising a plurality of structural struts, adjacent struts defining a side branch opening, the side branch opening being in fluid communication with the lumen;
a graft, the graft disposed about at least a portion of the adjacent struts defining the side branch opening, the graft comprising an inflatable pocket, the inflatable pocket defining an inflation lumen and at least one inflation port in fluid communication therewith, the inflatable pocket comprising a petal, in the expanded state the petal extending outward from the tubular body.
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Accused Products
Abstract
A stent may comprise a graft having a plurality of outwardly deployable petals. A petal may include an internal inflation pocket. Upon inflation, the petal may deploy outwardly and provide support to a portion of a vessel bifurcation. Inflation may be accomplished by injecting an inflation medium into the inflation pocket. In some embodiments, an inflation medium may comprise a hardening resin.
89 Citations
20 Claims
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1. A stent expandable from an unexpanded state to an expanded state wherein in the expanded state the stent has a diameter that is greater than the diameter in the unexpanded state, the stent comprising:
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a substantially tubular body, the body defining a lumen and a longitudinal axis therethrough, the body comprising a plurality of structural struts, adjacent struts defining a side branch opening, the side branch opening being in fluid communication with the lumen;
a graft, the graft disposed about at least a portion of the adjacent struts defining the side branch opening, the graft comprising an inflatable pocket, the inflatable pocket defining an inflation lumen and at least one inflation port in fluid communication therewith, the inflatable pocket comprising a petal, in the expanded state the petal extending outward from the tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stent delivery system comprising:
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a catheter shaft;
a substantially tubular stent;
a graft, the graft engaged to at least a portion of the tubular stent defining a side branch opening;
the graft comprising an outwardly deployable petal having an inflatable pocket, the inflatable pocket defining an inflation lumen and an inflation port in fluid communication with the inflation lumen; and
an inflation member, the inflation member defining a catheter inflation lumen in fluid communication with the inflation port. - View Dependent Claims (12, 13, 14, 15)
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16. A method of stenting a bifurcated vessel comprising:
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providing a stent body having a graft engaged to at least a portion of the body;
the graft comprising an outwardly deployable petal having an inflatable pocket;
orienting the stent at a deployment location;
injecting an inflation medium into the inflatable pocket, thereby deploying the petal outwardly from the stent body. - View Dependent Claims (17, 18, 19, 20)
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Specification