Clariance

Other

Choice Spine, LP

Eurosurgical

Orthotec, LLC

Eurosurgical Sa

Surgiview

Guy Viart

Adrien Billon

Jean Yves Leroy

Alain Tornier

Jean-Yves Leroy

Brice Krier

Nicolas Virgaux

Afshin Gangi

Sebastien Schuller

Pascal Rokegem

Arnaud Pommier

Bruno Sauvage

Jean Paul Steib

Orlando Ortiz

Pierre Bernard

Jean-Paul Frederic Steib

Christian Mazel

Frédéric Marin

Tiphaine Leport

Rodolphe Lourdel

Eric Leroy

Inmaculada Perez Pedron

Antonio Martin Benlloch

Andrew Clavenna

Jean-Pierre Freund

Emeric Gallard

Sebastien Shuller

Jean-Paul Steib

Sébastien Schuller

Andrew Clevenna

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

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

A nucleus implant includes a core () arranged inside a nucleus pulposus space (Es) obtained after nucleotomy of the intervertebral disk (Di) and at least one extension () penetrating inside at least one channel (Co) formed in the vertebral body of the corresponding vertebra (Va, Vb) to strengthen and ensure a connection between the nucleus implant () and the bone body of the vertebra (Va) and/or (Vb) through the diffusion or migration of the viscoelastic material making up the nucleus implant in the cancellous bone of the vertebra.

Silicone nucleus implants

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 for forming an osseous channel () with a curved profile () via a straight cannula () previously fixed in the body of a vertebra () with a cortical plateau () of a spinal segment (Sr) of a vertebral column (Cv) includes a guide pin () which is provided from a guide pin kit and has at one of its ends a curved profile () of which the radius of curvature R is less than 20 millimeters, and a sharpened tip () 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 () making it possible to define, after insertion thereof into the body of the vertebra (), two contact points a and b ensuring the guidance of the free end of an articulated drill bit () so as to position said free end in a direction substantially perpendicular to that of the cortical plateau () of the vertebra () to be drilled.

Drilling device for forming a curved osseous channel within the body of a vertebra

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 ().

Articulated drill and device for driving it in a reciprocating movement

The immobilization device for a connecting rod () in an osseous anchoring element () of a rachidian implant () comprises an osseous anchoring implant () comprising retaining means () adapted to deform elastically under a pressure force F and a blocking element () comprising on the one hand lugs () which coact with the retaining means () to permit the securement of the blocking element () on the osseous anchoring element (), and on the other hand, a tightening screw () permitting immobilizing in rotation and in translation the connecting rod () between the osseous anchoring element () and the blocking element ().

Device for immobilizing a connecting rod in an osseous anchoring element of a rachidian implant

A surgical instrument includes: grip handles () which are articulated to each other around a fulcrum pin () so that the jaws can be moved from an open position to a closed position; and connecting elements () which can be used to: (i) lock the handles () in a determined, constant position when a first force is exerted on the handles; and (ii) unlock the handles () when a second force is exerted on same.

Surgical instrument

The invention concerns an intervertebral disc prosthesis comprising an upper plate ( ) and a lower plate ( ) anchored respectively on the upper end-plate and the lower end-plate of the vertebral bodies of the vertebrae lying above and below a spine, a central core ( ) placed between the two plates ( ) which have an upper spherical cap ( ) and a lower spherical cap ( ) co-operating respectively with the spherical impressions ( ) arranged in said upper and lower plates, and an annular element ( ) made of viscoelastic material which is centred about the core ( ) and is urged into contact with protuberances ( ) provided on each internal surface ( ) of the upper plate ( ) and of the lower plate ( ) so as to limit and control the bending, inclining and rotating movements of the upper plate ( ) and of the lower plate ( ) relative to each other and about the core ( ), and ensure the positioning stability of the core ( ) between the two plates ( ) and prevent fibrous deposits from penetrating inside the prosthesis ( ).

Intervertebral disc prosthesis

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.

Multiaxial connector for spinal implant

A posterior spinal osteosynthesis device for providing a transverse connection between two vertebral rods extending along a spinal segment wherein the device includes pairs of hooks adapted to laterally engage the vertebra with each pair being connected by a pair of parallel rods which are elastically bent to form a transverse arc whose ends are engaged in bores within the hooks.

Posterior backbone osteosynthesis device

The device comprises at least one vertebral rod (2), pedicle screws (3), and connectors (1) interconnecting the rod and the screws. The connectors (1, 10) define an oblong opening (5) extending transversely of the rod and passed through by the screw. The intermediate connectors (1) are made of a malleable plastically deformable material having a capacity of elongation of at least about 20%. The intermediate anchorages of the instrumentation are provided with such connectors (1) which are plastically deformable in their branches (4) passed through by the screw by the effect of the tightening of nuts (8) on the screws when placing the device in position and undeformable by the effect of the bending moments transmitted by the spine in vivo at values lower than 4.5 N.m. The chosen material may be for example pure titanium and its plasticity enables the surgeons to easily adapt the connectors to the differences of alignment, angulation and depth of penetration of the pedicle screws. The connector according to the invention considerably facilitates the mounting of the instrumentations by the surgeon.

Growing community of inventors

Saint Leger, France

Guy Viart