An elastically actuated dynamic bionic knee joint

An elastic drive and knee joint technology, applied in the fields of biomedical engineering and rehabilitation aids, can solve problems such as being greatly affected by temperature, oil leakage in hydraulic control methods, etc., to reduce muscle energy consumption, improve comfort, and slow down external impacts Effect
CN107485471BActive Publication Date: 2019-04-26UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
Publication Date
2019-04-26

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Abstract

The invention discloses an elastic-drive dynamic bionic knee joint. The elastic-drive dynamic bionic knee joint comprises an active force driving end, a buffering mechanism, a stiffness adjusting mechanism, a knee joint force output end and a shank connecting end. The active power driving end is used for providing the knee joint active force, the buffering mechanism is connected between the active force driving end and the knee joint force output end and used for conveying the active force of the driving end to the knee joint force output end and comprises an elastic component, and the stiffness adjusting mechanism is connected to the buffering mechanism in a motion mode and changes the precompression amount of the elastic component through facing the buffering mechanism, so that stiffness adjustment of the knee joint is achieved, and the shank connecting end is connected with the knee joint force output end. According to the elastic-drive dynamic bionic knee joint, outer impacts can be effectively slowed down, and the knee joint stiffness is continuously adjustable, so that different motion requirements are met; the active force can be provided for an artificial limb wearer, so that energy consumption of muscles of the patient with an artificial limb is reduced, and the comfort of wearing is improved.
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Description

technical field

[0001] The invention belongs to the technical field of biomedical engineering and rehabilitation aids, in particular to a dynamic bionic knee joint used in lower limb prosthesis. Background technique

[0002] Due to various reasons such as wars, diseases, industrial injuries, traffic accidents and natural disasters, millions of people have lost their healthy lower limbs, and some people have lost their ability to work, which hinders their normal social interactions and bears a huge physical and mental burden. On the other hand, physical disabilities often affect people's daily life, reduce their quality of life, and also bring a heavy burden to their nursing families and society. Since the current level of medical treatment cannot regenerate limbs, installing prosthetic limbs for these amputees has become an important means of compensating for missing limbs.

[0003] Existing prosthetic knee joints are mainly passive and semi-active prosthetic knee joints. A...

Claims

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