Hemiplegic patient walking training hyperextension prevention method and device

Abstract

The invention discloses a hemiplegic patient walking training hyperextension prevention method and device. Through cooperation of a single-chip microcomputer, an electromagnetic internal contracting brake, a photoelectric encoder and lower limb machinery outer bones, a knee joint hyperextension phenomenon is prevented, during rehabilitation training of a patient, when knee joints are detected to unbend instantly, electrical pulses are utilized to stimulate leg biceps femoris muscles to make the knee joint contract. The method is advantaged in that the hyperextension phenomenon is prevented, and a knee joint hyperextension sequela problem of the patient after rehabilitation can be avoided.

Description

technical field [0001] The invention belongs to the technical field of medical physiotherapy devices, and in particular relates to a method and device for preventing hyperextension in walking training for hemiplegic patients. Background technique [0002] In recent years, the number of hemiplegia patients in my country has continued to rise, which not only increases the pressure on social security, but also brings great suffering to the patients' families and individuals. Although with the advancement of medical technology, certain treatment methods can restore the walking ability of hemiplegic patients, but due to the limitations of existing treatment methods and equipment, patients will have sequelae of hyperextension of the knee joint after complete recovery, resulting in The patient's walking posture is abnormal. [0003] Functional electrical stimulation (FES) belongs to the category of neuromuscular electrical stimulation (NES), which uses a certain intensity of low-f...

AI Technical Summary

Problems solved by technology

[0006] 1) When the hemiplegic patient is performing walking training, when the knee joint is just straightened, an external force is artificially applied to the knee joint to prevent the patient's knee joint from overbending. The medical staff must assist the hemiplegic patient in walking training throughout the process. In the first step, the medical staff have to apply an external force to the knee joint, which is too labor-intensive on the one hand, and on the other hand makes the medical staff who assist in the training feel physically and mentally exhausted

In addition, it is difficult to accurately judge whether the patient's knee joint is just straightened just by the observation of human eyes, so the effect on preventing the hyperextension of the knee joint of hemiplegic patients is limited;

[0007] 2) Mechanical exoskeleton device, this type of technical solution is mainly to bind the mechanical exoskeleton to the lower limbs of the hemiplegic patient, and rely on the characteristic that the mechanical exoskeleton cannot continue to bend forward when it is straightened to prevent the knee from bending too much. If the mechanical exoskeleton The patient's leg is not fixed tightly enough. When the mechanical exoskeleton is straightened, the patient's knee can still continue to bend due to the certain elasticity of the muscles of the human body, so it cannot effectively prevent the knee from hyperextending; and if the mechanical exoskeleton If the bones and the patient's legs are fixed too tightly, the blood circulation in the patient's legs will be poor, causing secondary damage to the patient's legs, which violates the original intention of rehabilitation training;

[0008] 3) elastic bandage binding method, this type of technical scheme is to bind an elastic bandage at the knee joint of the hemiplegic patient, and prevent the hyperextension of the knee joint of the hemiplegic patient through the elasticity of the elastic bandage. If the elastic bandage is bound too tightly or the binding time is too long, Both will cause damage to the patient's knee joint and even the entire lower limbs; but the binding is too loose and cannot achieve the effect of preventing hyperextension of the knee joint, so its effect and practicability are not ideal

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