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

Claim 9:
10. A medical device comprising:
an elongated shaft having a proximal portion configured to be electrically coupled to a current generator, an intermediate portion at least partially covered with an insulative material, and a distal portion uncovered by an insulative material;
an elongated tubular member having a proximal portion configured to be electrically coupled to the current generator, a distal portion, and a lumen receiving the elongated shaft therethrough such that the elongated shaft is not slidable with respect to the elongated tubular member, the elongated tubular member formed of a first conductive material;
a second conductive material circumferentially surrounding and in contact with the distal portion of the elongated tubular member, the second conductive material disposed only along the distal portion of the elongated tubular member and having a higher electrical conductivity than the first conductive material;
an interventional element coupled to the distal portion of the elongated shaft, the interventional element comprising a body formed of a third conductive material; and
a fourth conductive material disposed over the third conductive material, the fourth conductive material having a higher electrical conductivity than the third conductive material.