An alignment apparatus for guiding a cutting element along a predetermined path, the apparatus including a frame for guiding the cutting element along the predetermined path; and an adjustable clamp assembly, connected to the frame, for clamping a bone such that an intramedullary canal of the clamped...http://www.google.fr/patents/US5312409?utm_source=gb-gplus-shareBrevet US5312409 - Drill alignment guide
