Patent ID: 7462176
Filing Date: 2008-12-09
Classification: A61B,A61M

Abstract:
1. A method for removing tissue from a body, said method comprising the steps of: providing a device comprising: a hollow cannula having at least one opening in the distal end and means for connecting the cannula to a negative pressure source at the proximal end; a handle, operatively connected to the cannula, for use by a surgeon to direct and control the distal end of the device in a surgical site and advance the cannula into and withdraw the cannula from the surgical site with the required control and force; a laser fiber having a light output operably positioned proximate the opening for transferring energy to tissue drawn into the cannula through the at least one opening; and means, operatively connected to the cannula, for delivering irrigation fluid to the vicinity of the laser fiber light output and the opening; inserting the device through relatively small skin incisions to gain access to the tissue to be removed; maneuvering the device into and out of the tissue in order to traverse a large area of the tissue in successive passes of the device in and out along the long axis of the device; simultaneous with the maneuvering motion by the surgeon, applying suction through a suction channel formed in the cannula; applying energy to the laser fiber during the advancement and withdrawal of the cannula; and irrigating to provide cooling for the laser fiber and the opening and to reduce buildup of debris around the laser fiber and within the cannula.