BATSCH, Thomas,PAULIN, Thomas,FISCHER, Hans-Joachim,ALEMU, Bruke
申请号：
ES11730209
公开号：
ES2606560T3
申请日:
2011.06.24
申请国别(地区):
ES
年份:
2017
代理人:
摘要：
Fixation system with a bone plate and a bone screw to move relative to each other and fix parts of a broken or damaged bone, in which the bone plate comprises a plate body (1), which determines a plane of plate and a longitudinal axis, and has hole formations (2) transverse to the plane of plate, in which the bone screw (4) comprises a screw head (40) with an external thread (41) arranged in the upper area of the head and with a conical seating surface (42) arranged in the lower area, as well as with a screw shank (43) for screwing into the bone to be fixed, characterized in that the bone plate is constituted by a first rigid material and the bone screw is constituted by a second rigid material, because the hole formations are constituted by a first round hole (21) and a second round hole (22) that are configured in a stepped shape and that they cut forming edges (23, 24) and have a screw insertion side and a screw outlet side, the first round hole (21) presenting an upper region (25) on the screw insertion side and a lower region ( 26) configured as a conical seating surface on the exit side of the screw, the edges (24) extending through the upper region (25) and the edges (23) through the lower region (26), and presenting the minus the first round hole (21) a radial rib (33) which extends in a plane in the upper region (25) towards the center of the round hole, and the conical seating surface (42) of the bone screw (4 ) on the conical seating surface (26) of the bone plate when the bone screw (4) is screwed into the bone, so that, as a result of the cooperation of the outer thread (41) and the radial rib ( 33), a deformation occurs that results in a mutual adaptation of the nerve (33) and a meshing thread (41a) of the external thread of the bone screw (4).Sistema de fijación con una placa de hueso y un tornillo de hueso para desplazar una con relación a otra y fijar partes de un hueso roto o dañado, en el que la placa de hueso comprende un cuerpo de placa (1), que
