Patent ID: 9572604
Date: 2017-02-21
CPC Classifications: A61B

Claim:
1. A surgical kit for fastening vertebrae via the posterior approach or via the posterolateral approach, the kit comprising: at least one vertebral or pedicle screw, and a fitting tube co-operating with said screw, wherein said screw comprises a screw head having two lateral arms; said fitting tube having two rigid branches, each of said two branches having, on the inside face of a proximal end, at least one shoulder of shape complementary to the shape of an indentation provided on either side of a screw head, for allowing said screw to be taken hold of, or to be released by moving the ends of said rigid branches apart; the kit further comprising a retractable securing insert for securing together said branches; wherein the lateral arms of said screw head have at least two longitudinal extensions extending in the distal direction beyond the indentation of the respective arm; wherein each of said two branches has a cavity configured to receive one of said extensions, said cavity being situated above the shoulder and opened to the inner face of the respective branch, said cavity having a complementary shape to an outer surface of the respective extension, wherein each of said extensions being configured to enable their insertion into the respective cavity delimited by an outside surface of the proximal end of said retractable securing insert, when said retractable securing insert is fully engaged in said fitting tube.