| 摘要 |
An implant contains two end pieces disposed coaxially and at an axial distance, a cage, which connects the end pieces, and webs connecting the two end pieces. The two ends of each web are offset from each other by an equal initial angle in an initial state of the implant. The implant can be expanded by rotation of the end pieces in opposite directions about the center longitudinal axis. A tool for the implant has a handle and a main element with a receptacle for the implant and with two rotating devices, which act with a force fit on engaging elements of the implant and can be rotated oppositely in relation to each other. |
