Patent ID: 7717931

Claim:
A surgical tool assembly comprising: a cutting accessory including: an outer hub having an axially extending through bore and a fluid inlet bore that extends from an outer surface of said outer hub to the through bore; a seal mounted to said outer hub around the fluid inlet bore; an inner tube that extends through the outer hub through bore, said inner tube having a proximal end, the proximal end having an opening; an inner hub attached to said inner tube adjacent the proximal end of said tube; an outer tube that extends from said outer hub so as to at least partially surround said inner tube, said tubes shaped to define a channel between said tubes through which fluid can flow; and a handpiece including: a body having a bore in which said cutting accessory inner and outer hubs are seated and from which said cutting accessory inner and outer tubes extend; at least one locking member moveably attached to said body that is positioned to releasably engage said cutting accessory outer hub so as to releasably hold said outer hub in the handpiece body bore; an irrigation conduit that extends at least partially through said body to the body bore and to a discharge port defined by said handpiece that is positioned to open into the body bore so that liquid discharged therethrough flows into the outer hub fluid inlet bore wherein, a portion of said handpiece that defines the discharge port is positioned to abut said cutting accessory seal; a head rotatably disposed in the body bore that has a coupling member shaped to engage said inner hub so that said head and said inner hub rotate as one; and a suction conduit that extends through the body from the body bore that is positioned to be in fluid communication with the proximal end opening of said inner tube.