Cruciate ligament surgical drill guide

Claim 1

A surgical tool adapted to be temporarily mounted to the distal end of a femur to allow precise drilling of a bony tunnel through a femoral condyle to a precise exit location on a femoral surface, said tool comprising: a first longitudinally extending upright and a second longitudinally extending upright, with the distal end of the first upright including a first drill sheath and the distal end of the second upright including a second drill sheath, each of said sheaths defining a transversely extending guide for a drill, wherein each drill sheath has a serrated edge operable to fix the drill sheaths upon said condyle during a transverse contraction; and, first and second clamp assemblies, with said first and second uprights being respectively supported thereby, wherein said first upright is longitudinally slideable with respect to said first clamp assembly, and said second upright is longitudinally slideable with respect to said second clamp assembly; and, mounting means adjustably interconnecting said first and second clamp assemblies to allow a transverse relative movement between the clamp assemblies supporting said uprights, said mounting means further comprising a non-circular guide bar extending transversely between the respective clamp assemblies, and parallel to the drill guide defined by said sheaths and a screw means to transversely contract said clamp assemblies relative to each other, and upon said guide bar, whereby said second sheath can be placed within the intercondylar notch and said first and second sheaths can be transversely adjusted against a femoral condyle, wherein further said first drill sheath is sufficiently elongated in the transverse direction to accurately guide a drill bit that is inserted into said first drill sheath towards an exit point which is directly at the contact of said second drill sheath with said femoral surface.