Patent ID: 7588572

Claim:
A rotary surgical reamer, comprising: a) a hollow reamer body having a wall with an external surface and a base, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; and b) a retaining bar having a length extending along a longitudinal axis of the bar to spaced apart terminal ends permanently attached to a periphery of the base, wherein the retaining bar comprises spaced apart first and second retaining bar sides extending to the base periphery and located on opposite sides of the longitudinal axis of the retaining bar and a central retaining bar structure substantially centered between where the opposed ends of the retaining bar attach to the base periphery, the central retaining bar structure having opposed first and second radiused sides extending beyond respective planes of the first and second retaining bar sides, the opposed first and second radiused sides being aligned with each other along a perpendicular axis bisecting the longitudinal axis of the retaining bar.