Knee joint operation auxiliary device

Abstract

The invention discloses a knee joint operation auxiliary device, which comprises a scaleplate, an upper body, a lower body, a moving rod and a rotating body; the upper body comprises a rod piece, a mounting block and an upper gasket; a columnar space is formed in the lower portion of the rod piece; the lower body comprises a body and a lower gasket; a groove is formed in the outer wall of one side of the body; a through cavity is formed in the centre of the body; the groove and the cavity are communicated to form a limiting long hole; a protruding part is arranged at the bottom of the other side of the body; a through hole is formed in the middle of the protruding part; a communicating hole is formed between the through hole and the cavity; the upper end of the scaleplate is fixedly mounted on the mounting block; distance scales are arranged at the upper part of the scaleplate; tension scales are arranged at the lower part of the scaleplate; furthermore, a long hole is formed; the rotating body is mounted in the through hole of the protruding part; a gear is arranged in the middle; hexagonal heads are arranged at two ends; the moving rod consists of a rack and a cylindrical rod; a spring is arranged on the cylindrical rod; the moving rod is inserted from the bottom of the cavity; the gear is meshed with the rack; the rod piece is inserted from the top of the cavity and sleeved on the cylindrical rod; and the scaleplate is inserted into the groove. The device is convenient to use and accurate in measurement.

Description

technical field [0001] The invention relates to the field of knee joint surgery, in particular to an auxiliary device for knee joint surgery. Background technique [0002] With the advent of an aging society, knee osteoarthritis has become a common disease that plagues the majority of middle-aged and elderly people. The pain, swelling, mobility difficulties, nursing dependence and even disability caused by it have seriously affected the quality of life of patients, and It will cause a huge loss of medical resources. For a long time, for knee osteoarthritis that is ineffective in conservative treatment, the traditional treatment method is artificial total knee replacement surgery, which needs to remove and replace all articular cartilage, so as to eliminate the pain caused by cartilage wear, but The trauma is large, and because all the cruciate ligaments are removed at the same time, the artificial joint cannot simulate the original pattern of motion, which obviously affects...

AI Technical Summary

Problems solved by technology

When measuring the knee flexion position, the operator holds the gap measuring block to perform forward and backward pulling movements (mainly controlled by the operator's biceps brachii), while when measuring the knee extension position, it is an up and down lifting movement (mainly controlled by the operator's anterior deltoid muscle). bundle control), the subjective feeling of resistance to different muscles is quite different, and the magnitude of the resistance felt is completely determined by the operator’s personal experience, and there is no precise quantification standard, so many times of grinding and repeated adjustments are often required during the operation. Balance adjustment greatly prolongs operation time, increases blood loss and infection risk

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