Patent ID: 7048740

Claim:
A rotary surgical reamer assembly comprising: 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; a shaft provided for transmitting torque about a central axis of the shaft, for rotation of the reamer body; and a retaining member having a maximum dimension at a cross-section taken at its center which is substantially less than its length dimension, the cross-section taken perpendicular to its longitudinal dimension and wherein its longitudinal axis extends diametrically across the base, traversing the central axis of the shaft and including a central aperture, wherein the aperture and shaft arc aligned with one another along the central axis in a fixed relative position during rotation of the shaft and reamer body.