| 摘要 |
A reamer for medical applications includes a shaft portion and a disposable hollow cutter assembly. The shaft portion having an elongated body with a distal end and a proximal end. The distal end has a coupling portion appointed for attachment of the reamer to a drilling device, and the proximal end has a threaded portion. The hollow cutter assembly includes: a disposable hollow cutter sleeve portion and a pilot tip. The disposable hollow cutter sleeve has an outer surface and a hollow construction, and is preferably appointed for a single, one-time use. Alternatively, the cutter sleeve is used more than once before it is discarded. In addition, the disposable hollow cutter sleeve portion has a plurality of cutting teeth and a plurality of apertures on the outer surface. The pilot tip having a threaded inner surface and is attached to the disposable hollow cutter sleeve portion. The disposable hollow cutter assembly is adapted to slide over the proximal end of the elongated shaft portion and extend over a portion of the elongated body thereof, thereby enabling the pilot tip to be threaded with the threaded portion of the proximal end of the shaft portion.
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