Cage positioning system as well as cage and positioning instrument for such a cage positioning system

摘要

The invention relates to a surgical cage positioning system (10) for the implantological replacement of an intervertebral disc, preferably in the region of the lumbar spine of humans with a positioning instrument (14) with a first coupling tines (88) and with a first manipulator tines (98), each with a Coupling member (92) are provided. The manipulator tines (98) can be displaced in the axial direction relative to the coupling tines (88) by means of a handle (26, 28, 30, 32, 40); The cage positioning system (10) comprises a cage (12) having an insertion opening (114) for the instrumentation segment (18) and coupling means (122, 124) over which the coupling members (92) of the instrumentation segment (18) pivotally engage the cage respectively (12) can be coupled, so that the cage (12) by means of the manipulator tine (98) about an axis of rotation D defined by the coupling member (92) of the coupling tine (88) and the coupling means (122, 124) of the cage (12) relative to the longitudinal axis (22) of the positioning instrument (14) is pivotable. The invention also relates to a cage and a positioning instrument.