the radial surfaces and a cutting member at the opening of the cavity a method of debriding a wound and or tissue with the apparatus can be practiced by delivering ultrasonic energy released from the various surfaces of the vibrating tip to the wound and or tissue prior to and or while portions of the tip are scrapped across the wound and or tissue application_number US 85716207 A description as illustrated by the embodiment depicted in fig1 the surgical apparatus comprises a surgical substructure 101 attached to an ultrasound transducer 102 driven by an electrical signal produced by generator 103 as ultrasound transducers and generators are well known in the art they need not and will not for the sake of brevity be described in detail herein however generator 103 should be capable of producing an electrical signal of a sufficient voltage to drive transducer 102 to induce substructure 101 or tip 105 if shaft 104 is omitted to vibrate approximately in resonance with the amplitude of the vibrations being between approximately 1 micron and approximately 100 microns surgical substructure 101 may be capable of vibrating approximately in resonance at a frequency between approximately 15 khz and approximately 3 mhz preferably substructure 101 should be capable of vibrating approximately in resonance at a frequency of approximately 30 khz surgical substructure 101 is comprised of shaft 104 and tip 105 as illustrated by the embodiment depicted in fig1 shaft 104 contains a proximal surface 106 opposite a distal surface 107 and at least one radial surface 108 extending between.