Patent ID: 8893722

Claim:
A method for the removal of tissue from a prostate gland, comprising: inserting an insertion tube including a first valve into the prostate gland; inserting an endoscope into the insertion tube to form an assembly, the endoscope including a second valve and an elongated member defining discrete first and second channels extending from a proximal region of the elongated member to a distal region of the elongated member, the first channel having a light guide permanently affixed therein, the second channel having a proximal end in communication with the second valve such that fluid from the second valve is able to flow into and through the second channel to a distal surgical site through an opening of the second channel at a distal face of a distal tip of the assembly, and the endoscope, when received within the insertion tube, forming a third channel bounded by an outer wall of the endoscope and an inner wall of the insertion tube such that fluid from the surgical site is able to flow into and through the third channel to the first valve through an opening of the third channel at the distal face of the distal tip of the assembly; inserting into the prostate gland and through the second channel of the endoscope a motor driven cutter for cutting and detaching tissue; introducing a fluid into the prostate gland through the second valve and the second channel; and aspirating fluid with detached tissue from the prostate gland through the inner tube of the cutter.