Patent ID: 6146380
Filing Date: 2000-11-14
Classification: A61B,A61N

Abstract:
A hollow cannula for insertion into a patient's body and adapted to receive an electrical signal from a signal generator to be transmitted to a target region in the patient's body, comprising:an electrically insulated elongated shaft defining a longitudinal passage;a distal tip portion coupled to the elongated shaft, the distal tip portion defining an aperture in communication with the longitudinal passage, the aperture adapted to allow introduction of fluid into the patient's body; andan electrical connection for receiving the electrical signal, the electrical connection coupled to the distal tip portion;wherein the distal tip portion includes an uninsulated, rigidly bent portion to facilitate placement of the distal tip portion at the target region, and wherein at least a portion of the distal tip portion comprises an electrically conductive surface that defines a treatment area.