Patent ID: 8088135

Claim:
An endoscopic surgical assembly comprising an elongated inner member and an elongated outer members, wherein each of said elongated members comprises a coordinating hub disposed at the proximal end, a laterally facing cutting aperture having at least one longitudinal cutting surface disposed at the distal end, and a central lumen extending along the length and defining inner and outer surfaces, further wherein said inner member is sized so as to be slidably received within the central lumen of said outer member and the hub of the inner member is configured to connect with the hub of the outer member such that said when said inner member hub and said outer member hub are connected, the respective cutting surfaces of the cutting apertures of said inner member and said outer member align to cooperatively resect tissue in contact therewith, said assembly further comprising a means for automatically transmitting relative back and forth axial movement between said inner member and said outer member when said inner member and said outer member are relatively rotated in an oscillatory fashion, in one direction for a first predetermined number of revolutions then in an opposite direction for a second predetermined number of revolutions.