Patent ID: 11963713
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medical device comprising:
a core assembly having a distal portion configured to be intravascularly positioned at a treatment site within a blood vessel lumen, the core assembly comprising:
a hypotube operably coupled to a first electrical terminal, the hypotube having an insulated proximal portion, an uninsulated distal portion, and a lumen extending therethrough, the hypotube formed of a first conductive material;
a second conductive material surrounding only the distal portion of the hypotube, wherein the second conductive material is disposed in a ring circumferentially surrounding an outer surface of the hypotube along the distal portion, the second conductive material having a higher electrical conductivity than the first conductive material;
a pushwire operably coupled to a second electrical terminal, the pushwire extending through the hypotube lumen, wherein the pushwire is fixed with respect to the hypotube;
an insulating material disposed radially between the hypotube and the pushwire, the insulating material extending from the proximal portion of the hypotube to the distal portion of the hypotube; and
an interventional element coupled to a distal end of the pushwire, the interventional element having a body formed of a third conductive material and a coating of a fourth conductive material disposed over the third conductive material, the fourth conductive material having a higher electrical conductivity than the third conductive material.