| 摘要 |
The invention relates to a contact device (10) for a bone screw (14) wherein, in an implanted end state of the arrangement composed of bone screw (14) and contact device (10), a first part (16) of the contact device (10) is arranged outside a cavity (12), and a second part (18) is arranged inside the cavity (12) of the bone screw (14), the parts (16, 18) form counterelectrodes, and the second part (18) electrically contacts the bone screw (14), while the first part (16) is isolated from the bone screw (14), wherein the contact device (10) has a cavity (20, 22) with a voltage source (24, 26) whose poles electrically contact each of the first part (16) and second part (18) directly or indirectly. In order to improve such a contact device, particularly in respect of the volume available for electrical components, it is proposed that the first part (16) of the contact device (10) is arranged proximally in an implanted end state of the arrangement of bone screw (14) and contact device (10). |
