Radio-frequency heating balloon catheter

Abstract

A radio-frequency heating balloon catheter is capable of cauterizing a target lesion in an atrial vestibule. The radio-frequency heating balloon catheter comprises: a catheter tube including an outer tube and an inner tube slidably extended through the outer tube, an inflatable balloon connected to an extremity of the outer tube and a part near an extremity of the inner tube, and capable of coming into contact with a target lesion when inflated, a radio-frequency electrode serving as a counter to a surface electrode attached to a surface of a subject's body and being placed in a wall of the balloon or inside the balloon to supply radio-frequency power between the surface electrode and the radio-frequency electrode, a temperature sensor capable of sensing temperature inside the balloon, a guide shaft projecting from the extremity of the inner tube and capable of holding the balloon on the target lesion, and a guide wire extended through the catheter tube and the guide shaft.

Dependencies are inferred from the claim text.