| 摘要 |
The invention concerns an implant for an osteosynthesis device, in particular backbone osteosynthesis, comprising: a hook (1) integral with a fixing head (2) consisting of two open U-shaped lateral branches for receiving a connecting rod (5); and a counter-hook (9) directed towards the hook (1) and freely connected to said hook (1). The invention is characterised in that the implant comprises: means freely connecting the hook (1) with the counter-hook (9), consisting of a finger (10) extending one of the counter-hook ends (9a) and adapted to slide in a bore (11) provided in the hook (1) top part (1a); means (13) for maintaining the hook (1) and counter-hook (9) in relative position: and means for locking the hook (1) with respect to the counter-hook (9), to ensure their relative immobilisation. |
