Modular instrumentation for preparing femoral stem, has centering and locking units whose relative positions and their dimensioning are such that locking and centering of handle are carried out simultaneously

摘要

The instrumentation has an interlocking unit (4) disposed between a handle (3) and a test prosthesis rasp (2). The unit (4) acts on them in combination with a centering unit (5) of the handle. Relative positions of the units (4, 5) and their dimensioning are such that locking and centering of the handle are carried out simultaneously during the same assembly operation.