Bone tunnel fixing device for rebuilding anterior cruciate ligament

The utility model discloses a bone tunnel fixing device for rebuilding anterior cruciate ligament. The bone tunnel fixing device for rebuilding anterior cruciate ligament comprises a thigh bone end inner fixing component and a shin bone end inner fixing component; the thigh bone end inner fixing component comprises a first hollow screw, a first inner screw and a first guide screw rod; the tail end diameter of the first hollow screw is greater than the front end diameter, and the first hollow screw is of a shape consisting of an incomplete inverted conical body and a cylindrical body which are connected; an internal thread of the first hollow screw is adapted to an outer thread on one end of the first inner screw; the other end of the first inner screw is provided with a loop for suspending transplanted ligament; the outer diameter of the first guide screw rod is less than the inner diameter of the first inner screw; the shin bone end inner fixing component is similar to the thigh bone end inner fixing component. The bone tunnel fixing device for rebuilding anterior cruciate ligament provided by the utility model can reduce the longitudinal motion (bungee jumping effect) and horizontal motion (windshield wiper effect) among transplanted muscle tendon bone channels, can reduce the loss of bone quantity, and achieves firm fixing effect; the area of contact between the transplanted muscle tendons and bone channels is large, and the muscle tendon healing is promoted further.