Thrombectomy treatment system
AssigneeCovidien LP
InventorsAshok Nageswaran, Gaurav Girdhar, Hoai Nguyen, Daniel Deen
Life of this patent
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Abstract
A medical treatment device is disclosed herein. In one example, the medical treatment device includes a core assembly which has a first conduct and a second conductor. An insulative material can surround the second conductor and define an electrode portion of the second conductor that is uncovered by the insulative material. The medical treatment device can include an interventional element that electrical couples to the first conductor. The electrode portion of the second conductor can be disposed radially adjacent to or distal of the interventional element.
Claims23
A medical device comprising:
- a core assembly configured to be advanced within a corporeal lumen, the core assembly comprising:
- a first conductor having a proximal end portion and a distal end portion, the first conductor forming a lumen;
- a second conductor at least partially disposed within the lumen of the first conductor, the second conductor having a proximal end portion and a distal end portion;
- and
- an insulative material surrounding the second conductor along at least a part of its length, the insulative material defining an electrode portion of the second conductor that is uncovered by the insulative material;
- and
- an interventional element comprising an expandable mesh forming a longitudinally open tube with a free distal end portion and a proximal end portion that tapers proximally and is coupled to the distal end portion of the first conductor, the interventional element extending distally away from the distal end portion of the first conductor, the interventional element electrically coupled to the first conductor,
- wherein the second conductor extends at least partially through the longitudinally open tube of the interventional element such that the electrode portion of the second conductor is disposed radially adjacent to or distal of the interventional element.
A medical device comprising:
- an elongated shaft having a proximal portion configured to be electrically coupled to a current generator, an intermediate portion covered with an insulative material, and a distal portion defining an electrode portion;
- an elongated tubular member having a proximal portion configured to be electrically coupled to a current generator, a distal portion, and a lumen receiving the elongated shaft therethrough;
- and
- an interventional element having a proximal end portion coupled to the distal portion of the elongated tubular member, the interventional element comprising a tubular body extending circumferentially around the distal portion of the elongated shaft.
A medical device comprising:
- a first conductor having a proximal end portion and a distal end portion configured to be positioned proximate a thrombus within a lumen of a blood vessel at a treatment site;
- an interventional element comprising an expandable mesh defining a lumen therethrough, the interventional element having a proximal end portion coupled to the distal end portion of the first conductor, the first conductor configured to convey electrical current to the interventional element;
- a second conductor having a proximal end portion and a distal end portion, at least a part of the distal end portion of the second conductor extending through the lumen of the interventional element;
- and
- an insulative material disposed over the second conductor, the insulative material configured to electrically insulate the second conductor, the insulative material defining an electrode portion on the second conductor, the second conductor and the electrode portion being configured to provide a return path for an electrical current from the interventional element.
Dependencies are inferred from the claim text.