Ankle joint rehabilitation training device and working method thereof

Abstract

The invention discloses an ankle joint rehabilitation training device, which comprises a base, a leg support frame, a foot support plate and a rope driving module, the leg support frame is hinged on the base, the foot support plate is detachably connected to the leg support frame, and the rope drive module There are drag cables that can apply pulling force to the sole support plate, the lower end and the left and right sides respectively on the top. The drag cable passes through the leg support frame and is connected with the sole support plate. The sole support plate is provided with a drag cable steering adjustment mechanism. The invention also discloses the working method of the ankle joint rehabilitation training device. The invention can perform three-dimensional exercise on the injured ankle joint, and has more comprehensive functions. In addition, the present invention uses more cables as transmission parts, which can reduce the impact and vibration generated by rigid transmission, make the movement more compliant, and prevent secondary damage to the injured ankle joint.

Description

technical field [0001] The invention relates to a rehabilitation exercise device, more specifically, it relates to an ankle joint rehabilitation training device and related working methods. Background technique [0002] As the hub of contact between the human body and the ground, the ankle joint plays an important role in daily life, including cushioning of foot pressure, bearing weight and walking. If the ankle joint is injured, in addition to causing pain and affecting people's normal activities, if the situation is serious, it will further affect the normal performance of the mechanical functions of other parts such as the lower limbs, pelvis, and spine. The ankle joint is composed of the articular surface of the tibia and the end of the fibula of the lower leg and the trochlea of ​​the talus, so it is often called the talus calf joint. The ankle joint of a normal person can achieve three degrees of freedom rotation of plantar flexion / dorsiflexion pitch, varus / valgus sol...

AI Technical Summary

Problems solved by technology

At present, ankle joint rehabilitation training mainly relies on physical therapists. According to the patient's recovery status, the physical therapist adjusts the strength to drive the ankle joint until the consciousness is restored. This treatment method relying on the physical therapist has the following disadvantages: the physical therapist's work intensity is high; the treatment process It mainly relies on the experience of physical therapists and is difficult to quantify; this imprecise treatment method limits the improvement of curative effect; because the treatment method is difficult to quantify, it is not suitable for large-scale promotion and application

[0003] 1. The organization has a single function

Some ankle joint rehabilitation training institutions have insufficient degrees of freedom, can only rotate around one or two axes, and cannot achieve 3 degrees of freedom around the center of the ankle joint, which affects the recovery effect;

[0004] 2. There are redundant degrees of freedom in the mechanism

Most of the rotation centers of the existing ankle joint rehabilitation training robots are inside the mechanism, and the ankle joint rotation centers cannot coincide with them. During the rehabilitation training process, the ankle joint must move with the rotation of the mechanism. At this time, the calf is forced to move. Follow-up movement requires increased coordination of the calf. If the coordination of the calf is not in place, the designated movement angle will affect the progress of rehabilitation, and the ankle joint will be injured again in severe cases;

[0006] 4. Most institutions use rigid connecting rods as the transmission medium, which has poor flexibility and high inertia, making it difficult to carry out structural changes. Rigid connecting rods are prone to harmful impacts during rehabilitation training, causing discomfort to patients;

[0007] 5. The existing ankle joint rehabilitation training equipment is complex in structure, heavy in weight and expensive in price, and only a few hospitals or rehabilitation centers with good conditions can afford it

However, this invention can only realize the adjustment of the pitch state of the ankle joint, and does not have the ability to adjust the three-degree-of-freedom rotation, and the recovery effect of the ankle joint is limited.

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