Importance

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Abstract

Surgical instrument for inserting an intervertebral prosthesis, having first and second prosthesis holders (52A, 52B) for a pair of prosthesis plates, which holders are connected to one another by a parallel guide (57) and can be spread by a lever arrangement (131). The first of the prosthesis holders is arranged on an elongate instrument body in order to give the surgeon an exact picture of the orientation of the prosthesis and to allow force to be exerted in exactly this direction. The actuating lever (131) is articulated with its front end on the second prosthesis holder (52B) so as to pivot about a spindle (130) extending transversely with respect to the longitudinal direction of the instrument body (51) and to the direction of spreading. Behind this spindle (130), it has a limit stop (133) which acts directly or indirectly on the instrument body (51) or the first prosthesis holder (52A). The lever arrangement can also be the other way around.

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First Claim