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Ankle joint boosting method with reverse drivability

An ankle joint and reverse technology, which is applied in the direction of appliances to help people walk, physical therapy, etc., can solve the problems of cumbersome control and complex mechanism, and achieve the effect of high control precision, saving mechanical structure, and easy realization

Inactive Publication Date: 2015-02-04
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the three degrees of freedom are active actions, three active guide rods are required, resulting in complex mechanism and cumbersome control of the device

Method used

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  • Ankle joint boosting method with reverse drivability
  • Ankle joint boosting method with reverse drivability
  • Ankle joint boosting method with reverse drivability

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited.

[0038] The ankle joint assisting method with reverse drivability provided by the present invention can realize assisting ankle joint walking. The method is as follows: the ball screw 2 converts the forward rotation motion of the motor 1 into a linear motion, drives the pressure plate 5 upward, and passes Squeeze the spring 3 to lift the guide rod 6 upwards, and pull the heel of the human body through the wire rope 7 to help the human body realize the plantar flexion drive around the ankle joint and provide walking assistance. Reverse drivability during boosting consists of two parts. In the plantarflexion and dorsiflexion control phase, it is realized by the longitudinal compression yield of the wire rope. In the swing phase, the slight dorsiflexion of the human body causes the spring 3 to be compressed, and th...

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Abstract

The invention discloses an ankle joint boosting method with a reverse drivability. The method is realized through a boosting mechanism adapting to gait, a reverse drivable mechanism and a gait detection mechanism, wherein a motor (1) of the boosting mechanism rotates according to a plantar-pressure variation signal transmitted by the gait detection mechanism so as to actively adapt to the gait process of human walking to actively boost ankle joints, playing a help role on a patient who is disabled to normally walk. Meanwhile, the motor drives the reverse drivable mechanism to act, so that unimpeded free foot activities are realized. The method can provide boost for the ankle joints and cannot constrain the initiative will of the human body, being the key of researches on lower limb rehabilitation and robots for helping the aged and the disabled. The method has the advantages of easiness in realization and high control precision.

Description

technical field [0001] The invention relates to a method for assisting an ankle joint, in particular to a method for assisting an ankle joint with reverse drivability. Background technique [0002] For patients with impairments in independent walking, assistive and orthotic devices can help in terms of walking comfort and gait aesthetics. The findings suggest that one of the main functions of the human ankle is to provide sufficient energy for the body to move forward. The traditional ankle joint assist device is only a simulation of the physiological structure of the human ankle joint. The disadvantage is that it cannot adjust the gait according to the walking process of the human body, and its mechanical properties are fixed at different walking speeds and terrains. Moreover, due to the lack of reverse drivable function of the traditional ankle joint auxiliary device, the auxiliary device does not match with the human body, which limits or even hinders the free movement o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61H3/00
Inventor 向馗陈静赵明宇周申培
Owner WUHAN UNIV OF TECH
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