| 摘要 |
A tool (2) for forming a cavity within a bone (6) comprises a shaft (10) and a blade (12) which is pivotally mounted on the shaft towards one end thereof. A rod is fastened to the blade, and can slide within the shaft, to change the pivotal position of the blade relative to the shaft. The tool can include an incremental drive to cause the rod to translate along the shaft when the shaft and rod are rotated. |
