Patent ID: 8343148
Filing Date: 2013-01-01
Classification: A61B

Abstract:
1. A device for morcellating tissue within a body cavity of a patient, the device comprising: a stationary shaft in the form of a tube having a proximal end portion and a distal end portion, the tube having a stationary bipolar electrosurgical electrode assembly located at the distal end portion thereof, the bipolar electrosurgical electrode assembly comprising first and second electrodes separated by an insulation member, the bipolar electrosurgical electrode assembly extending around the circumference of the distal end portion of the tube, wherein at least the majority of the shaft length is constituted by a twin-walled construction including an inner wall and an outer wall, the tube being hollow, such that a slug of tissue can be pulled through the tube and removed through the proximal end portion of the tube, the twin-walled construction further including an insulating gap between the inner wall and an outer wall to prevent heat from the slug of tissue being transferred from the inner wall to the outer wall of the tube.