| 摘要 |
The invention relates to a vertebral body replacement implant, comprising: a top implant part (10) having a top vertebral contact surface (11); a bottom implant part (20) having a bottom vertebral contact surface (21); and a spreading device (30), which is operatively connected to the implant parts (10, 20) in order to push the implant parts (10, 20) apart, wherein the spreading device (30) comprises a worm gear (40) having a worm (43) and a worm wheel (41) for applying a spreading force (F), wherein the spreading device (30) comprises a spindle thread (56) on a spindle rod (50) for applying the spreading force (F), which is held in a rotationally mounted inside thread (48) of the worm wheel. |
