Knee joint neuromuscular training system and control method

Abstract

The invention belongs to the technical field of medical instruments, and discloses a knee joint neuromuscular training system and a control method. The knee joint neuromuscular training system is provided with a seat, an adjustable chair back is fixedly connected to the back of the seat, supporting legs are fixedly connected to the lower portion of the seat, a leg training box is arranged right in front of the seat, a pulley device is arranged inwards in the leg training box, a knee joint is arranged in the pulley device, and the pulley device comprises a first linkage rod group, a second linkage rod group and a pedal plate. According to the knee joint neuromuscular training system, the joint motion range can be generated, the tension around the joint can be maintained, and meanwhile, the motion range is generated by muscle activity; electromyographic signals in the knee stretching process of the leg on the healthy side are collected, then data processing is conducted, the same electric signals are output on the leg on the affected side through transcutaneous nerve electrical stimulation, the sequence of muscle contraction is guaranteed, and the actions of knee joint flexion and extension under the normal condition are simulated; and meanwhile, the knee joint is arranged in the pulley device, so that the knee joint can move conveniently.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a knee joint neuromuscular training system and a control method. Background technique [0002] At present: patients with knee joint surgery have rapid atrophy of muscles around the knee joint and joint contracture in the early stage. Low-frequency electrical stimulation is commonly used in clinic to prevent muscle atrophy and passive joint mobilization instrument to prevent atrophy, but the clinical effect is not good. The reason is that the quadriceps contraction is required when the knee joint is straightened. The contraction of the quadriceps is time-sequenced and requires coordinated contraction. At the same time, the joints regenerate joint movement when the muscles contract. Current electrical stimulation ignores the above important factors. [0003] Through the above analysis, the problems and defects of the existing technology are: the existing electr...

AI Technical Summary

Problems solved by technology

[0003] Through the above analysis, the problems and defects of the existing technology are: the existing electrical stimulation technology ignores the timing of the contraction of the quadriceps muscle when the knee joint is straightened, and its timing requires coordinated contraction. Problems recreating joint motion when muscles contract

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