CHAN, JASON S.,DELL'OCA, ALBERTO A. FERNANDEZ,DELLOCA, ALBERTO A. FERNANDEZ
申请号：
ES12006617
公开号：
ES2545456T3
申请日:
2008.08.12
申请国别(地区):
ES
年份:
2015
代理人:
摘要：
Bone plate system comprising: an upper surface (1137), a lower surface engaging with the bone (1139), and a hole (1140) extending therethrough from the upper surface (1137) to the lower surface (1139), said hole (1140) having an inner surface (1135) defining a central axis (1119) and which is configured and sized to receive inside it a screw with variable angle lock； and said inner surface (1135) of said hole (1140) including an upper portion (1144), an intermediate portion (1146), and a lower portion (1148), the upper portion (1144) extending from the upper surface (1137) to the intermediate portion (1146), the intermediate portion (1146) extending between the upper portion (1144) and the lower portion (1148), and the lower portion (1148) extending from the intermediate portion (1146) to the lower surface ( 1139), and serving a projection (1145) at the intersection of the upper portion (1144) and the intermediate portion (1146) as a stop for the screw head of an unblocked bone screw； and the intermediate portion (1146) has a plurality of discrete columns (1142) of teeth or threaded segments arranged around the circumference of the hole (1140) on the inner surface (1135) of the hole (1140), and each column extending ( 1142) in a direction from the upper surface (1137) to the lower surface (1139)； and the columns (1142) being configured and dimensioned to engage a thread in the screw head with variable angle lock, and the hole (1140) being able to receive the screw with variable angle lock under a selectable angle in any direction with respect to to the central axis of the hole (1140) within a range of angles that form a cone； characterized in that - the lower portion (1148) is conical or curved inwardly from the lower surface (1139) to the intermediate portion (1146)； and - the lower portion (1148) is in the form of a cut sphere.Sistema de placa ósea que comprende: una superficie superior (1137), una superficie inferior de acoplamiento con el hueso (1139), y un orif
