Patent ID: 8357163
Filing Date: 2013-01-22
Classification: A61B

Abstract:
1. A modular tapered hollow reamer for medical applications, comprising: a. a shaft portion having an elongated body with a proximal end and a distal end, said proximal end having a coupling portion appointed for attachment of said reamer to a drilling device, said distal end having a tapered body element with a central aperture, external surface taper and one or more torque transmitting slots on said external surface taper; b. a disposable tapered hollow reamer portion, comprising: c. a removable guide pin having a distal end, central portion and proximal end and said distal end and proximal end provided with attachment means for securing said guide pin to the central aperture of said tapered body element of the shaft and said central apertures of said disposable tapered hollow reamer; whereby the reamer assembly transmits torque from the shaft to said disposable tapered hollow reamer through torque transmitting tabs and slots and; guide pin insertion and contact between the external surface taper of said tapered, body element of said shaft and the tapered interior aperture of said reamer ensure, during assembly, substantial coincidence of centerlines, preventing reamer wobbliness, and bone and bone cement debris is collected in the space within the tapered hollow reamer portion.