Intravascular stent intended in particular for angioplasty
First Claim
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1. A system for maintaining a patient lumen at a bifurcation of an anatomic canal comprising:
- two slanted-end stents each of which comprises a radially expanded mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a slanted front end defined by a plane oriented relative to the axis at an angle less than 90 degrees;
one V-shaped-end stent comprising a radially expandable mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a front end defined by the intersection of two planes intersected to form a V-shaped front end as viewed radially;
in which the V-shaped-end stent is implantable in a common branch of a bifurcation of the canal and oriented so that the V-shaped front end extends into the bifurcation; and
in which the slanted-end stents are separately implantable in secondary branches of the bifurcation and are oriented so that each slanted front end extends into the bifurcation in abutting relation to the V-shaped front end, thereby providing reinforcing coverage to substantially all affected area of the bifurcation.
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Abstract
An expandable, open-work intravascular stent, having a variable-length of generatrices and an arrangement of radiopaque marker points, is particularly suited for angioplasty as the stent reinforces vessels at bifurcation points while maintaining satisfactory hydrodynamics.
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Citations
3 Claims
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1. A system for maintaining a patient lumen at a bifurcation of an anatomic canal comprising:
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two slanted-end stents each of which comprises a radially expanded mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a slanted front end defined by a plane oriented relative to the axis at an angle less than 90 degrees;
one V-shaped-end stent comprising a radially expandable mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a front end defined by the intersection of two planes intersected to form a V-shaped front end as viewed radially;
in which the V-shaped-end stent is implantable in a common branch of a bifurcation of the canal and oriented so that the V-shaped front end extends into the bifurcation; and
in which the slanted-end stents are separately implantable in secondary branches of the bifurcation and are oriented so that each slanted front end extends into the bifurcation in abutting relation to the V-shaped front end, thereby providing reinforcing coverage to substantially all affected area of the bifurcation. - View Dependent Claims (2, 3)
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Specification