A leg mechanism that can be used for lower limb rehabilitation training

Abstract

The invention discloses a leg mechanism for lower limb rehabilitation training. The leg mechanism comprises a hip joint mechanism, a knee joint mechanism, an ankle joint mechanism, a thigh connecting rod mechanism, and a crus connecting rod mechanism. The hip joint mechanism, the knee joint mechanism, and the ankle joint mechanism are driven by corresponding joint motors and corresponding absolute value code discs are installed for recording joint angles. The hip joint mechanism is provided with a torque sensor; and the knee joint mechanism is provided with a tension and pressure sensor. Therefore, the joint running state monitoring during the training process can be realized and force-position-sensor-based human body motion intention identification can be executed, thereby carrying out active rehabilitation training. The hip joint mechanism, the knee joint mechanism, and the ankle joint mechanism employ reducing mechanisms with large reduction ratios, so that the joint mechanisms have characteristics of low speed and high torque; and the characteristics are similar to the joint characteristics of the lower limb of the human body, so that the mechanism practicability is improved. The thigh connecting rod mechanism and the crus connecting rod mechanism are provided with length hand-operated adjustment and value reading mechanisms, so that the length adjustment processes of the thigh connecting rod mechanism and the crus connecting rod mechanism become convenient.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, in particular to a leg mechanism that can be used for lower limb rehabilitation training. Background technique [0002] Lower extremity rehabilitation training is an important means for patients with lower extremity paralysis to restore the movement perception function of the lower extremities, and ultimately restore the ability of daily living such as walking, going up and down stairs. Traditional lower limb rehabilitation training uses manual methods to assist the patient's lower limb exercises. Its shortcomings are that it consumes a lot of physical strength of relevant medical staff, training intensity and frequency cannot be guaranteed, and training is subjective. As the cost of personnel continues to rise, The cost of traditional rehabilitation training methods is also getting higher. Therefore, as an alternative to traditional rehabilitation training methods, lower limb rehabil...

AI Technical Summary

Problems solved by technology

Traditional lower extremity rehabilitation training uses manual methods to assist patients with lower extremity movements. Its disadvantages lie in the need to consume a lot of physical strength of relevant medical staff, the training intensity and frequency cannot be guaranteed, and the training is more subjective. With the continuous increase in personnel costs, Traditional rehabilitation methods are also becoming more expensive

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