摘要:
The drilling device for forming an osseous channel (2) with a curved profile (2b) via a straight cannula (6) previously fixed in the body of a vertebra (3) with a cortical plateau (4) of a spinal segment (Sr) of a vertebral column (Cv) includes a guide pin (8) which is provided from a guide pin kit and has at one of its ends a curved profile (8a) of which the radius of curvature R is less than 20 millimeters, and a sharpened tip (8b) arranged in a direction defined by an angle Y which is less than 90 degrees to the longitudinal axis of said pin, the profile of said guide pin (8) making it possible to define, after insertion thereof into the body of the vertebra (3), two contact points a and b ensuring the guidance of the free end of an articulated drill bit (10) so as to position said free end in a direction substantially perpendicular to that of the cortical plateau (4) of the vertebra (3) to be drilled.
摘要:
A surgical instrument for removal of an immobilizing element includes a main body having a guide tube integral with a fixed handle and having elastic elements for securing the surgical instrument on the head, a locking tube sliding on the guide tube and having elements for immobilizing the surgical instrument on the head, a pusher tube sliding inside the guide tube by way of a mobile handle connected to the fixed handle. The pusher tube has first elements for spacing apart the walls of the head and second elements for immobilizing the connection rod in the base of the head of the bone-anchoring element, and a gripper rod sliding inside the pusher tube and including a gripper device for securing and removal of the immobilizing element from the head of the bone-anchoring element.
摘要:
The surgical instrument according to the present invention comprises a main body (101) comprising a horizontal tube (102) extending by a frame (103) that is formed as an integral unit with a fixed handle (104), a movable handle (105) acting on a driving device (108) guided within the frame (103) and allowing, according to the pressure force applied on the movable handle (105), firstly the immobilization of the surgical instrument (100) on the head (8) of the bone anchoring element (2) and secondly the introduction under the pushing force F of an immobilizing element (104), previously positioned and guided within the tube (102), in the head (8) of the bone anchoring element (2).
摘要:
The immobilization device for a connecting rod (2) in an osseous anchoring element (3) of a rachidian implant (4) comprises an osseous anchoring implant (3) comprising retaining means (14, 15) adapted to deform elastically under a pressure force F and a blocking element (5) comprising on the one hand lugs (33, 34) which coact with the retaining means (14, 15) to permit the securement of the blocking element (5) on the osseous anchoring element (3), and on the other hand, a tightening screw (31) permitting immobilizing in rotation and in translation the connecting rod (2) between the osseous anchoring element (3) and the blocking element (5).
摘要:
The immobilization device for a connecting rod (2) in an osseous anchoring element (3) of a rachidian implant (4) comprises an osseous anchoring implant (3) comprising retaining means (14, 15) adapted to deform elastically under a pressure force F and a blocking element (5) comprising on the one hand lugs (33, 34) which coact with the retaining means (14, 15) to permit the securement of the blocking element (5) on the osseous anchoring element (3), and on the other hand, a tightening screw (31) permitting immobilizing in rotation and in translation the connecting rod (2) between the osseous anchoring element (3) and the blocking element (5).
摘要:
A surgical instrument includes: grip handles (2, 3) which are articulated to each other around a fulcrum pin (4) so that the jaws can be moved from an open position to a closed position; and connecting elements (5) which can be used to: (i) lock the handles (2, 3) in a determined, constant position when a first force is exerted on the handles; and (ii) unlock the handles (2, 3) when a second force is exerted on same.
摘要:
A multiple axis connector for securing a connecting rod of a spinal implant to a vertebra anchor wherein the connector includes a first element for securing to the vertebra anchor and a second element for receiving the connecting rod and which elements are joined by a ball joint member which permits relative angular adjustment therebetween.
摘要:
A method and a device for protecting text for reading (23), arranged on at least one written face (22) of an object (25). The object (25) is connected to at least one matching antenna (12), produced by printing on a support (11) and having at least one electromagnetic coupling zone (14) with an individual antenna of smaller dimensions. At least one security film (3), not provided with a matching antenna (12) but with at least one individual integrated antenna microcircuit called a microtransponder (7), is applied to cover the text for reading (23) for which authentication information may be delivered using the microtransponder (7).
摘要:
Each connector of the vertebral anchoring system for spinal fixation includes: a first element having parallel housings in cylinder portion receiving respectively the corresponding linking rod and a threaded hollow cylindrical sleeve extending vertically between the housings; a second element having parallel housings in cylinder portion receiving respectively the corresponding linking rod and a bore provided between the housings to be traversed by the cylindrical sleeve of the first element; a clamping nut co-operating with a male thread of the cylindrical sleeve of the first element for fixing the second element on the first and the linking rods in the housings; and clamping elements co-operating with the cylindrical sleeve of the first element for fixing each connector on the corresponding anchoring screw.
摘要:
A vertebral anchoring device including a polyaxial anchoring screw having a spherical head; a connecting rod; a connection element for receiving portions of the connecting rod; a clip having a pressure screw positionable to engage the connecting rod; and a connector installable on the spherical head for receiving the connecting rod. The connector includes a socket and a ring which co-act with one other about the spherical head of the screw in an installed orientation. The socket includes two portions bridged together at an upper level of the socket so that the two portions are positionable in a spaced apart orientation to enable the socket to be installed on the spherical head. Pressure of the pressure screw against the connecting rod bears the connecting rod against the ring which bears the ring against the spherical head of the screw.