| 摘要 |
A slender rod is used to guide a circular cutter thought the intramedullary canal of a long bone. Loading and unloading of the cutter is done quickly by having a reduced cross section near one end of the rod. The cutter has a corresponding slot radially extending from its center. The cutter can be disengaged from a driving shaft without disengaging the driving shaft from the rod, eliminating a difficult realignment process, making the whole cutting process faster. The slot will not interfere with the cutting operation, nor allow the cutter to break free. The reduced section of the rod can be modular and replaceable.
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