Endovascular devices and methods
AssigneeBoston Scientific Scimed, Inc.
InventorsChad J. Kugler, Robert E. Atkinson
Life of this patent
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Abstract
Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes providing an intravascular device having a distal portion with a lumen extending therein; inserting the device into the vascular lumen; positioning the distal portion in the vascular wall; and directing the distal portion within the vascular wall.
Claims20
A method of treating an occlusion of a blood vessel, comprising:
- advancing an intravascular device within a lumen of the blood vessel to a position adjacent the occlusion, wherein the intravascular device comprises:
- an elongate shaft defining a central longitudinal axis;
- a first lumen extending to a distal opening at a distal end of the elongate shaft;
- a second lumen extending to a distal opening located proximal of the distal end of the elongate shaft;
- and
- an inflatable balloon secured to the elongate shaft, the inflatable balloon including an expandable portion;
- inflating the inflatable balloon to orient the distal opening of the second lumen toward an intimal layer of a wall of the blood vessel;
- and
- thereafter, advancing a subintimal device through the second lumen and into a subintimal space of the blood vessel proximal of the distal end of the elongate shaft.
A method of treating an occlusion of a blood vessel, comprising:
- advancing an intravascular device within a lumen of the blood vessel to a position adjacent the occlusion, wherein the intravascular device comprises:
- an elongate shaft defining a central longitudinal axis;
- a first lumen extending to a distal opening at a distal end of the elongate shaft;
- and
- a second lumen extending to a distal opening located along a distal end region of the intravascular device proximal of the distal end of the elongate shaft;
- urging the distal end region of the intravascular device toward an intimal layer of a wall of the blood vessel to position the distal opening of the second lumen against the intimal layer of the wall of the blood vessel;
- and
- thereafter, advancing a subintimal device through the second lumen and into a subintimal space of the blood vessel proximal of the distal end of the elongate shaft.
A method of treating an occlusion of a blood vessel, comprising:
- advancing an intravascular device within a lumen of the blood vessel to a position adjacent the occlusion, wherein the intravascular device comprises:
- an elongate shaft defining a central longitudinal axis;
- an inflatable balloon secured to the elongate shaft, the inflatable balloon including an expandable portion;
- a first lumen extending coaxially with the central longitudinal axis to a distal opening positioned distal of the expandable portion of the inflatable balloon;
- a second lumen extending along an exterior of the expandable portion of the inflatable balloon to a distal opening positioned intermediate a proximal end of the expandable portion and a distal end of the expandable portion;
- and
- inflating the inflatable balloon to expand the expandable portion and orient the distal opening of the second lumen toward an intimal layer of a wall of the blood vessel;
- after expanding the expandable portion, advancing a subintimal device through the second lumen and into a subintimal space within the wall of the blood vessel.
Dependencies are inferred from the claim text.