DEVICE FOR SURGICAL DISPLACEMENT OF VERTEBRAE

摘要

Device for surgical displacement of vertebrae, which is composed of two parts co-working in a sliding way: a sliding part (1) with an internal thread and a carrier part (3), and also a driving element (4) with an external thread which is located between the parts. The driving element (4) is provided with a head (5). The sliding part (1) of the device is equipped with a threaded guideline (2) cooperating with the driving element (4) and a seat of a diameter corresponding with the head's (5) diameter and length greater than the head's (5) length. The carrier part (3) of the device has a cylindrical seat (12) of a diameter and length corresponding with the head's (5) diameter and length. The sliding part (1) and the carrier part (3) are provided with cooperating: at least one shaped element (8) and shaped element (9), which form a lock preventing separation of both parts in the direction perpendicular to the device longitudinal axis.