BEAURAIN, JACQUES,FUENTES, JEAN-MARC,VITAL, JEAN-MARC,DUFOUR, THIERRY,HUPPERT, JEAN
申请号：
ES10185004
公开号：
ES2445876T3
申请日:
2003.10.31
申请国别(地区):
ES
年份:
2014
代理人:
摘要：
Intervertebral disc prostheses comprising at least three parts including a first plate, referred to as the upper plate (1), a second plate, referred to as the lower plate (2), and a core (3), the upper convex surface of the core (3) with at least a part (10) of the lower concave surface of the upper plate (1) and the lower surface of the core (3) being in contact with at least part of the upper surface of the lower plate (2 ), the upper plate (1) being movable at least with respect to the core (3), said prosthesis comprising cooperation means between the lower plate (2) and the core (3), said cooperation means comprising male means cooperating with female means, in order to limit the translation movements of the core (3) with respect to the lower plate (2) along an axis substantially parallel to the lower plate (2), and to limit the rotational movements of the core (3) r specific to the lower plate (2), around an axis substantially perpendicular to the lower plate (2), said cooperation means comprising straight portions oriented along a front-rear direction (F) of the prosthesis and recorienting portions perpendicular to said front-back direction (F), said straight portions being connected by round portions, characterized in that said cooperation means of both the core (3) and the lower plate (2) are located opposite each other in the vicinity of two edges of the prosthesis, the dimensions of the female means being larger than those of the male means to thus allow movements of the core (3) with respect to the lower plate (2), said straight or round portions of the male cooperation means cooperating with said straight portions or round of the female cooperation means to limit said core movements (3) with respect to the lower plate (2).Prótesis de disco intervertebral comprendiendo por lo menos tres partes incluyendo una primera placa, referidacomo la placa superior (1), una segunda placa, referida como la placa inferior (2), y un núcleo (3), estando encontacto la sup
