Endoprosthesis deployment system for treating vascular bifurcations
AssigneeDevax, Inc.
InventorsJacques Sequin, Robert John Elicker, Jean-Claude Laborde
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Abstract
A device and method for treating pathological narrowing of fluid-carrying conduits of the human body (such as blood vessels) in an area of a bifurcation is disclosed. In particular, a stent system comprising a pair of dissimilar stents, one of which is particularly suited for treating a widened portion of a blood vessel immediately proximal to a bifurcation. A stent delivery system including a handpiece adapted to selectively deliver the stents is also disclosed.
Claims41
A method of deploying first and second stents in the vicinity of a vascular bifurcation of a main vessel into a first and a second branch vessels, comprising the steps of:
- providing a delivery catheter having first and second stents thereon;
- positioning the catheter such that the first and second stents are in the vicinity of the bifurcation;
- and
- deploying the first stent in a branch vessel and the second stent in the main vessel;
- wherein the second stent expands to a first diameter at a proximal end and a second, greater diameter at a distal end.
A deployment system for treating a bifurcation of a main vessel and a first and second branch vessels, comprising:
- an elongate, flexible body, having a proximal end and a distal end;
- a first stent and a second stent carried by the distal end;
- and
- a releasable restraint, for retaining the stents on the flexible body;
- wherein the first stent has different dimensions in an unconstrained expanded configuration than the second stent.
A method of treating a vascular bifurcation of a main vessel into first and second branch vessels, comprising the steps of:
- deploying a substantially cylindrical stent in a first branch vessel;
- and
- deploying a tapered stent in the main vessel;
- wherein both of the substantially cylindrical stent and the tapered stent are deployed from the same catheter.
A stent deployment catheter, comprising:
- an elongate, flexible tubular body, having a proximal end and a distal end;
- a first and a second stents carried by the distal end;
- a handpiece on the proximal end;
- a control on the handpiece, having a first position for indicating partial deployment of the first stent, and a second position indicating complete deployment of the first stent.
A method of treating a bifurcation of a main vessel into first and second branch vessels, comprising the steps of:
- providing a catheter having a first and a second stents thereon;
- positioning the catheter in the vicinity of the bifurcation;
- partially deploying the first stent into the first branch vessel;
- introducing contrast media to permit visualization of the location of the first stent;
- and
- completely deploying the first stent into the first branch.
A stent deployment catheter, comprising:
- an elongate, flexible body, having a proximal end and a distal end;
- a first stent on the body, having a first configuration;
- and
- a second stent on the body, having a second, different configuration.
Dependencies are inferred from the claim text.