Patent ID: 8002776

Claim:
An oscillating rasp for preparation of vertebral endplates, comprising: a rotary power source; a linkage assembly coupled to said rotary power source to convert rotary motion of said rotary power source into reciprocating motion of a portion of the linkage assembly; and a pair of bilateral rasp plates positioned on opposite sides of a longitudinal axis, said rasp plates being linked to said linkage assembly and adapted to linearly reciprocate in opposite directions relative to each other along said longitudinal axis in response to the reciprocating motion provided by said linkage assembly, wherein each of said rasp plates includes a plurality of rows of cutting members and each of said plurality of rows includes a plurality of cutting members; and a head portion including a cavity within which said pair of bilateral rasp plates are housed, said head portion at least partially surrounding said pair of bilateral rasp plates to limit an amount of material removed from the vertebral endplates.