Patent ID: 9173701
Filing Date: 2015-11-03
Classification: A61B

Abstract:
1. A device for performing a surgical procedure to ablate pathological tissue at a surgical site in a patient, the device comprising: an elongated shaft extending between a proximal end and a distal end, the shaft including an outer surface and an inner surface, the shaft configured for insertion into the surgical site containing the pathological tissue and surrounding non-pathological tissue; an expandable member disposed at the distal end of the shaft configured to receive inflation material; at least one electrode disposed with the expandable member, adapted to emit RF energy having a frequency sufficient for ablating the pathological tissue at the surgical site; a cooling mechanism including at least a spiral tube provided within the expandable member, the spiral tube configured to receive a cooling medium therein; and a sensor provided on the expandable member measuring temperature to determine an amount of ablation of at least one of the pathological tissue and the surrounding non-pathological tissue, and to determine if emission of the RF energy should be continued to further ablate the pathological tissues; wherein the cooling medium in the spiral tube uniformly decreases the temperature of the expandable member, thereby deflating the expandable member, and allowing at least removal of the device from the surgical site.