Patent ID: 6106524
Filing Date: 2000-08-22
Classification: A61B

Abstract:
Apparatus for use with a power source to provide therapeutic cauterization of a known volume of tissue having known dimensions, the apparatus comprising:an energy applicator adapted to cause cauterization of a predetermined volume of tissue having defined dimensions, the energy applicator comprising:a base having a central lumen, a distal end, and a longitudinal axis, the distal end having a sharpened edge to facilitate introduction and advancement of the energy applicator into the tissue;an extractor disposed within the central lumen, the extractor having a sharpened distal end and a lateral opening adapted to accept a tissue sample; the extractor movable from a first position wherein the lateral opening extends beyond the distal end of the base to accept a tissue sample, and a second position wherein the lateral opening is retracted within the lumen to sever the tissue sample against the sharpened edge of the base;a distal electrode and at least one proximal electrode disposed on the base, the distal electrode and proximal electrode spaced apart along the longitudinal axis by a region of electrical insulation; anda hub for electrically coupling the energy applicator to a handle;a handle including a portion that accepts the hub of an energy applicator, the handle including control circuitry for controlling the supply of electric current between the distal electrode and the proximal electrode; anda cable for coupling the handle to the power source.