Patent ID: 6783533
Filing Date: 2004-08-31
Classification: A61B

Abstract:
A device for reaming a medullary canal of a bone comprising:a rotatable drive shaft having proximal and distal ends, the proximal end configured and adapted to connect to a drive element to rotate the drive shaft; and a reamer head coupled to the distal end of the drive shaft, to rotate the reamer head, said reamer head comprising: a tubular shank having a longitudinal axis and a plurality of resilient arms for engaging the distal end of the drive shaft; and a cutting head coupled with the shank and having a plurality of blades and flutes therebetween for cutting and reaming of bone; an aspiration tube for removing cut material generated by the reamer head, the aspiration tube having a manifold assembly at a proximal end and a lumen configured and dimensioned to receive the drive shaft; and a reamer head retainer having proximal and distal ends and configured and dimensioned at a proximal end to connect to a distal end of the aspiration tube and configured and dimensioned at a distal end to receive the reamer head, wherein the drive shaft and reamer head each has a cannulation, with the drive shaft cannulation aligning with the reamer head cannulation when the tubular shank and resilient arms are engaged with the drive shaft to form a center channel through the device.