A lever for grasping bone tissue includes a shaft defining a channel and having a proximal end and a distal end, a claw member disposed on the distal end of the shaft for holding the bone tissue, and a rod threadably received in the channel and having a proximal end and a distal end. Rotation of the...http://www.google.com.tw/patents/US6679888?utm_source=gb-gplus-share專利 US6679888 - Femur lever
