95 results about "Knee joint replacement" patented technology

The invention provides a customized thighbone intercondylar osteotomy device, and belongs to the field of knee joint replacement surgical instruments, the customized thighbone intercondylar osteotomy device comprises a four-direction guide plate, inner and outer side positioning plates, inner and outer side limiting columns and inner and outer side nail channels, the four-direction guide plate is used for realizing osteotomy operation in four directions, the inner and outer side positioning plates are symmetrically arranged on two sides of the four-direction guide plate, and the inner and outer side limiting columns are symmetrically arranged on two sides of the four-direction guide plate. The inner and outer side limiting columns are fixed to the inner and outer side positioning plates and distributed on the two sides of the four-direction guide plate, the inner and outer side nail channels are distributed on the inner and outer side positioning plates, and the nail channels on the same side are arranged on different sagittal planes. The four-direction osteotomy device is simple in structure, convenient to operate, high in positioning precision and convenient to repeatedly design and manufacture, the design difficulty is effectively reduced, the cost is reduced, meanwhile, osteotomy operation in four directions can be achieved, the size of parts is reduced to the maximum extent on the premise that functions and mechanical properties are guaranteed, and the cost is reduced. And the material loss in the printing process is reduced.

The invention discloses a postoperative rehabilitation device for total knee replacement. The postoperative rehabilitation device comprises an equipment shell, a reversal mechanism, a first pedal piece, a second pedal piece and a reciprocating driving mechanism, wherein the reversal mechanism is arranged in the equipment shell and is provided with a first driving end and a second driving end; the rotation directions of the first driving end and the second driving end are opposite; the first pedal piece and the second pedal piece are respectively located on two sides of the equipment shell and are both connected to the reversal mechanism; and the reciprocating driving mechanism is connected with the reversal mechanism and is used for driving the reversal mechanism to rotate in a reciprocating mode, so that the first pedal piece and the second pedal piece can be driven by the reversal mechanism to rotate in different directions and execute alternately. According to the postoperative rehabilitation device, which is provided by the embodiment of the invention, for the total knee replacement, the knee joint bending and stretching action of a patient can be achieved, knee bending and stretching training is sufficient, a knee joint rehabilitation training effect is better, and in addition, the rehabilitation device has a small size and a simple structure and is suitable for being used on a sickbed for training.