Graft deployment system
First Claim
1. A bifurcation prosthesis deployment system, comprising:
- an elongate, flexible catheter body, having a proximal end and a distal end and comprising an outer sheath and an inner core that is axially moveable with respect to the outer sheath and an atraumatic distal tip coupled to the inner core and positioned adjacent the distal end of the catheter body;
a self-expanding bifurcated graft comprising a main vessel portion, a first branch vessel portion, and a second branch vessel portion;
a main vessel graft restraint comprising a first peelable cover for restraining substantially the entire length of the main vessel portion of the bifurcated graft;
a first branch vessel graft restraint, for restraining the first branch vessel portion of the graft; and
a second branch vessel graft restraint, for restraining the second branch vessel portion of the graft;
wherein;
the first peelable cover is coupled to a main branch release element;
each of the bifurcated graft, main vessel graft restraint, first branch vessel graft restraint, and the second branch vessel graft restraint are positioned within the catheter body in a graft loaded condition in an orientation such that the main vessel portion is positioned nearer to the distal end of the catheter body than either the first branch vessel portion or the second branch vessel portion; and
the first peelable cover is configured such that proximal retraction of the first peelable cover causes the first peelable cover to tear.
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Accused Products
Abstract
A graft deployment system, comprises an elongate, flexible catheter body, having a proximal end and a distal end and comprising an outer sheath and an inner core that is axially moveable with respect to the outer sheath. A main vessel graft restraint comprising a first peelable cover for restrains a main vessel portion of a graft. In a bifurcated graft, a first branch vessel graft restraint restrains a first branch vessel portion of the graft. A second branch vessel graft restraint restrains a second branch vessel portion of the graft. The first peelable cover is coupled to a main branch release element and wherein each of the main vessel graft restraint, first branch vessel graft restraint, and the second branch vessel graft restraint are positioned within the catheter body in a graft loaded condition.
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Citations
31 Claims
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1. A bifurcation prosthesis deployment system, comprising:
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an elongate, flexible catheter body, having a proximal end and a distal end and comprising an outer sheath and an inner core that is axially moveable with respect to the outer sheath and an atraumatic distal tip coupled to the inner core and positioned adjacent the distal end of the catheter body; a self-expanding bifurcated graft comprising a main vessel portion, a first branch vessel portion, and a second branch vessel portion; a main vessel graft restraint comprising a first peelable cover for restraining substantially the entire length of the main vessel portion of the bifurcated graft; a first branch vessel graft restraint, for restraining the first branch vessel portion of the graft; and a second branch vessel graft restraint, for restraining the second branch vessel portion of the graft; wherein; the first peelable cover is coupled to a main branch release element; each of the bifurcated graft, main vessel graft restraint, first branch vessel graft restraint, and the second branch vessel graft restraint are positioned within the catheter body in a graft loaded condition in an orientation such that the main vessel portion is positioned nearer to the distal end of the catheter body than either the first branch vessel portion or the second branch vessel portion; and the first peelable cover is configured such that proximal retraction of the first peelable cover causes the first peelable cover to tear. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A deployment system for deploying a bifurcated prosthesis at the junction of a main vessel and first and second branch vessels, comprising:
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a delivery catheter having an inner core, an outer sheath and a distal tip that is coupled to the inner core, the inner core being slidably engaged within the outer sheath; and a self-expanding bifurcated prosthesis having a main body section with proximal and distal ends and being self-expandable along a substantial portion of the length thereof, and first and second branch sections at the proximal end of the main body section, each being self-expandable along a substantial portion of the length thereof; wherein; at least a portion of the main body section is held in a radially compressed state by a first peelable cover, the first branch section is held in a radially compressed state within a first tubular cover, and the second branch section is held in a radially compressed state within a second tubular cover; the main body section is deployable by proximally retracting the first peelable cover; the first peelable cover is configured such that proximal retraction of the first peelable cover causes the first peelable cover to tear; and the compressed bifurcated prosthesis is positioned within the outer sheath such that the distal end of the bifurcated prosthesis is positioned nearer to the distal tip of the delivery catheter. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A bifurcation prosthesis deployment system, comprising:
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an elongate, flexible catheter body, having a proximal end and a distal end and comprising an outer sheath and an inner core that is axially moveable with respect to the outer sheath and an atraumatic distal tip coupled to the inner core and positioned adjacent the distal end of the catheter body; a self-expanding bifurcated graft comprising a main vessel portion, a first branch vessel portion, and a second branch vessel portion; a main vessel graft restraint comprising a first peelable cover for restraining substantially the entire length of the main vessel portion of the bifurcated graft; a first branch vessel graft restraint, for restraining the first branch vessel portion of the graft; and a second branch vessel graft restraint, for restraining the second branch vessel portion of the graft; wherein; the first peelable cover is coupled to a main branch release element; each of the bifurcated graft, main vessel graft restraint, first branch vessel graft restraint, and the second branch vessel graft restraint are positioned within the catheter body in a graft loaded condition in an orientation such that the main vessel portion is positioned nearer to the distal end of the catheter body than either the first branch vessel portion or the second branch vessel portion; and the deployment system is configured such that proximal retraction of the main branch release element in an axial direction causes the first peelable cover to tear. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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Specification