Patent ID: 9289313
Filing Date: 2016-03-22
CPC Classification: A61B,A61F

Claim Text:
1. An insertion instrument for instrumented insertion of a socket insert having a spherical cap into a hip socket of a hip joint prosthesis comprising: an impacting instrument with a handle; a holding tool for the socket insert located at the end of the handle; wherein the end of the impacting instrument is spherically formed and is part of the holding tool; and wherein the holding tool further comprises an impacting head which is designed as a separate component and serves for receiving the spherical end of the impacting instrument in an articulated manner; and an insertion aid which is designed as a separate component and serves for holding the socket insert on the outer geometry of the impacting head; and wherein the impacting head can be connected to the spherical end, thereby forming a ball joint, wherein the insertion aid comprises a spring ring having radially projecting holding claws, wherein due to the resilience of the spring ring, the holding claws are radially displaceable, and at an outer end of the holding claws, axially projecting hooks are arranged which, in an assembled state, rest with their holding surface against an outer surface of the socket insert and, at the same time, the holding claws rest with their support surface on an edge of the socket insert.