Instrument zur Implantation von kalottenförmigen Artikulationskomponenten eines künstlichen Gelenkes in eine bereits implantierte Verankerungsschale mittels Hammerimpulsen, wobei die Haltekraft zwischen Instrument und Artikulationskomponente durch Unterdruck erzeugt wird und die Haltekraft durch eine visuelle Anzeige kontrollierbar ist.The instrument has an attachment (2) fitting in a spherical dome (1) of a joint socket in a form fit and tight manner at a lower end. The attachment is connected with a vacuum generating cylinder-piston system via a connecting tube (4). The cylinder-piston system is operated by a linearly moving handle (5). The moving handle is releasably locked at an upper end in a cocked position. The cylinder-piston system comprises a striking plate (12) at the upper end for applying setting pulses to indicate holding force of 50 Newton generated by vacuum by a spiral spring.
