Clariance

Jean Yves Leroy

Guy Viart

Adrien Billon

Alain Tornier

Brice Krier

Nicolas Virgaux

Sebastien Schuller

Afshin Gangi

Jean Paul Steib

Christian Mazel

Bruno Sauvage

Orlando Ortiz

Sebastien Shuller

Sébastien Schuller

A device for percutaneous transpedicular fusion includes at least two straight pedicular cannulas arranged respectively on the upper or lower vertebra, or on the two vertebrae of the spinal segment, at least one guide pin with a curved profile, which is implanted in the endplate of the corresponding vertebra through the corresponding pedicular cannula, of a flexible cannulated drill bit guided around the corresponding guide pin and driven in back and forth movements by a cannulated drive system to nibble out gradually slots in the lower and upper endplate of each vertebra and reduce to flaps the nucleic tissues of an intervertebral disk for the production of the intersomatic space, of an injection device connected to one of the straight pedicular cannulas for the injection of the graft into the intersomatic space, and closing devices that are screwed into the holes left free after retraction of the straight pedicular cannulas.

Device for percutaneous transpedicular fusion

The flexible and fluted cutting device for drilling and/or milling a space in bone tissue or connective tissue includes, on the one hand, a cutting element () made up of a rigid tube () secured at one of its ends to a supple and flexible connection () extended by a fluted cutter () and at the opposite end to drive element provided with a safety connector () for uncoupling the cutting device and, on the other hand, a guide element () providing the positioning and angular deformation of the cutting element () within the bone tissue or connective tissue.

Flexible and fluted cutting device

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

Disclosed is a polyaxial screw including a friction element () positioned between the head () of the threaded bone anchoring portion () and the head () of the mechanical thread anchoring portion () on the one hand, and a retaining element () ensuring that the anchoring portions () cannot separate from each other while guaranteeing that the anchoring portion with the mechanical thread () is free to move in vertical translation and angular pivoting with respect to the threaded bone anchoring portion () so as to be able to axially preposition the mechanical thread anchoring portion () with respect to the axial anchoring position of the threaded bone anchoring portion ().

Polyaxial screw with mechanical thread and its friction device

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 ().

Growing community of inventors

Campagne-les-Hesdin, France

Jean Yves Leroy