Smith + Nephew

Sdgi Holdings, Inc.

Sofamor S.n.c.

Denis Huten

Abraham Biglari Salehi

Paul Charles Crabtree

Frantz Langlais

Kevin Weaver

Greg C Marik

Dennis Harrison

Remi Cavagna

Hugues Malandain

Gregory C Marik

Henry Dennis Harrison

Jose Gournay

Methods, systems, and devices for replacement of a joint with a prosthetic system that replicates the natural kinematics of the joint is disclosed. A prosthetic system according to one embodiment includes a tibial component having a tibial plateau and a tibial stem portion, the tibial plateau having a top side and a bottom side, a tibial insert, with a bearing surface, adapted to be positioned on the top side of the tibial plateau, a femoral component having a base portion and a central housing, the femoral component having an axis of extension-flexion rotation, the base portion having a pair of condyles, an a mechanical linkage component linking the tibial component with the femoral component and with the tibial insert in between the tibial component and the femoral component, so that there is a center of contact between the condyles and the bearing surface.

Hinged joint system

Methods, systems, and devices for replacement of a joint with a prosthetic system that replicates the natural kinematics of the joint is disclosed. A prosthetic system according to one embodiment includes a tibial component having a tibial plateau and a tibial stem portion, the tibial plateau having a top side and a bottom side, a tibial insert, with a bearing surface, adapted to be positioned on the top side of the tibial plateau, a femoral component having a base portion and a central housing, the femoral component having an axis of extension-flexion rotation, the base portion having a pair of condyles, a mechanical linkage component linking the tibial component with the femoral component and with the tibial insert in between the tibial component and the femoral component, so that there is a center of contact between the condyles and the bearing surface, the mechanical linkage component adapted to allow the center of contact to move posteriorly during flexion, provide for the movement of the axis of extension-flexion rotation in the superior-inferior direction, and allow rotation of the tibial component, the bearing surface, and the femoral component about a superior-inferior axis in order to provide and control the natural kinematics of the knee joint.

The tightening instrument is made up of two parts () joined to each other by means which are designed to automatically uncouple the said two parts () by shearing rupture of a pin () when a predetermined tightening torque is reached, a first () of the two parts being provided with a means () permitting driving, characterized in that the second () of the two parts is a rod whose end () opposite its tightening end () is adapted to be introduced into a complementary recess () formed in the first part (), and in that the said end () includes an axial reservoir () for receiving the broken end section () of the pin ().

Tightening instrument for orthopaedic surgery of the spine

This invention is a pedicle screw (), comprising a threaded rod () having a longitudinal axis (XX) and a head () in which there is a channel () adapted to receive a spinal support rod, and a means for blocking the rod; the channel is formed such that its longitudinal axial plane (P) is inclined relative to the longitudinal axis (XX) of the threaded rod. The head () of the screw being made up of two flanks (), a threaded hole () is formed in one of them; the inclination of the channel () relative to the axis of the treaded rod () makes it possible to place a tool for blocking the rod in the channel without this tool coming into contact with the muscle tissues delimiting the incision. Moreover, the threaded seat () permits the positioning of instruments without obstructing the channel for passage of the rod.

Pedicle screws with inclined channels to hold support rods

Growing community of inventors

Vincennes, France

Denis Huten