Positionable Stent-Graft Delivery System and Method
First Claim
Patent Images
1. A positionable stent-graft delivery system comprising:
- a stent-graft including a proximal portion of said stent-graft;
a positioning mechanism for positioning said proximal portion of said stent graft comprising tensioners, said tensioners comprising;
tensioner guides; and
cords extending through said tensioner guides, said cords capable of being moved through said tensioner guides.
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Abstract
A positionable stent-graft delivery system includes a stent-graft, a tip capture mechanism radially constraining a proximal portion of an anchor stent ring of the stent-graft, and a positioning mechanism for positioning the tip capture mechanism. The positioning mechanism includes tensioner guides and cords. To position the tip capture mechanism, a cord is retracted through the respective tensioner guide, e.g., by the physician. Retraction of the cord, in turn, pulls the tip capture mechanism towards a distal end of the tensioner guide. In this manner, the stent-graft is readily repositioned.
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Citations
22 Claims
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1. A positionable stent-graft delivery system comprising:
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a stent-graft including a proximal portion of said stent-graft; a positioning mechanism for positioning said proximal portion of said stent graft comprising tensioners, said tensioners comprising; tensioner guides; and cords extending through said tensioner guides, said cords capable of being moved through said tensioner guides. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A positionable stent-graft delivery system comprising:
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a stent-graft; an inner tube comprising a tip mounted on a distal end of said inner tube; an outer tube comprising a spindle mounted on a distal end of said outer tube, a proximal anchor stent ring of said stent-graft being radially constrained in an annular space between a spindle body of said spindle and a sleeve of said tapered tip; a primary sheath radially constraining a graft material of said stent-graft; a positioning mechanism for positioning said stent-graft comprising; tensioner guides; and cords extending through said tensioner guides; and a handle comprising; a primary sheath actuation member for retracting said primary sheath relative to said outer tube; an inner tube actuation member for advancing said inner tube relative to said outer tube; and cord actuation members for retracting said cords through said tensioner guides.
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20. A method of deploying a stent-graft with a positionable stent-graft delivery system comprising:
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radially constraining a proximal anchor stent ring of said stent-graft with a tip capture mechanism of said positionable stent-graft delivery system; radially constraining a graft material of said stent-graft with a primary sheath of said positionable stent-graft delivery system; partially retracting said primary sheath to expose a portion of said stent-graft; and retracting a cord through a tensioner guide of said positionable stent-graft delivery system to move said tip capture mechanism and reposition said proximal anchor stent ring. - View Dependent Claims (21, 22)
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Specification