DEVICE FOR INTRACORPORAL EXTENSION EQUIPPED BY WORKERS FOR TENSION SCREWS

摘要

1. Device for intracorporeal extension, containing the first elongated part (1), the second part (2), mounted with the possibility of telescopic movement relative to the first part (1), the first means (61) of communication with the body, provided at the first end (11) of the first parts (1), second means (62) of communication with the body, provided at the first end (21) of the second part (2), a rod (3) provided with at least one thread, and the rotation of the rod causes the movement of the second part (2 ) relative to the first part (1), means (4) of control the rod (3) and the means of communication between these components, characterized in that the rod (3) is installed between two ends that approach each other when the device is elongated, namely, between the second end (12) of the first part (1), opposite the first the end (11) of the first part (1), and the second end (22) of the second part (2), opposite the first end (21) of the second part (2). ! 2. The device according to claim 1, characterized in that the means of communication between the rod (3) and the second end (12) of the first part (1) contain a rotary support (55, 56), and the communication means between the rod (3) and the second end (22) the second part (2) contain a threaded groove (53) made with the possibility of interaction with the rod (3). ! 3. The device according to claim 1, characterized in that the means of communication between the rod (3) and the second end (12) of the first part (1) contain a threaded groove configured to interact with the rod (3), and the communication means between the rod ( 3) and the second end (22) of the second part (2) contain a rotary support. ! 4. The device according to claim 1, characterized in that the communication means between the rod (3) and the second end (12) of the first part (1) contain the first thread