Clariance

Brice Krier

Guy Viart

Jean Yves Leroy

Alain Tornier

Adrien Billon

Nicolas Virgaux

Afshin Gangi

Sebastien Schuller

Pascal Rokegem

Bruno Sauvage

Jean Paul Steib

Orlando Ortiz

Yannick Pontois

Andrew Clavenna

Sebastien Shuller

Sébastien Schuller

Andrew Clevenna

The self-locking screwdriver includes a guide tube inside which a clamping rod is guided and rotatably driven, one end of which is provided with a cavity which allows the rotational drive and tightening of an anchoring screw, ensuring the immobilization of an orthopedic implant against an osseous body of an individual, the screwdriver including, on the one hand, between The guide tube and the clamping rod, a blocking system cooperating with the guide tube in order to prevent the latter from being loosened from the orthopedic implant when the anchoring screw is tightened and, on the other hand, on the outer periphery of the guide tube, a gripping wheel for locking and/or unlocking the blocking system and the rotational drive of the guide tube.

Self-locking screwdriver

A discontinuously double-threaded bone screw includes a drive head and anchoring body consisting of a cylindro-conical core over which extend at least two cylindro-conical threads, the anchoring body including anchoring portions of different profiles, ensuring an anchoring corresponding to different bone hardnesses and strengths, the anchoring body including, below the drive head, a first anchoring portion with a conical core and two threads with cylindrical profile and identical pitch, a second anchoring portion with a cylindrical core and a single cylindrical thread over &#xbc; turn, a third anchoring portion with a cylindrical core and two threads with cylindrical profile over &#xbd; turn, a fourth anchoring portion including a cylindrical core and a single thread with cylindrical profile n turn based on total length of the bone screw, and a fifth anchoring portion including a conical core and two threads with conical profile forming the tip of the bone screw.

Double-threaded bone screw

The nucleotomy device makes it possible to produce a nuclear space Es in an intervertebral disc Di using a transosseous approach previously pierced in the body of a vertebra Va. The device includes a tool holder () provided with first connection elements () ensuring the placement of an electric rotary driving motor (), second connection elements () for the placement of a blade cutting tool (), driving elements () imparting rotational and longitudinal translational movements to the cutting tool (), and injection and suction elements () making it possible to evacuate the debris from the nucleus resulting from cutting when it is formed inside the intervertebral disc.

Driving assembly for a cutting tool of the shaver type

The gripping device () enables the introduction and attachment of a set screw () within a U-shaped link connector () of a polyaxial or monoaxial pedicle screw () to immobilize a connecting rod () of a osteosynthesis device (), and includes a locking element () which is supported against the link connector () making it possible to ensure concentricity between the principal axes of the gripping device () and those of the link connector () and to ensure that the connecting rod () is kept on the inside of the link connector (); and an element for releasing () the gripping device () after establishing and screwing the set screws () inside the link connector ().

Gripping device for a pedicle screw

The drilling device is composed of an articulated drill () provided with a metal tube () including, along its longitudinal axis XX', and at one of its ends, fixing elements () that cooperate with a device () for driving it in an oscillatory movement, while the other end includes a profile () with a succession of alternately concave and convex loops () ensuring the deformation of the profile along a radius of curvature r, and at least one series of teeth () with cutting edges ().

Articulated drill and device for driving it in a reciprocating movement

Growing community of inventors

Dainville, France

Brice Krier