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Active and passive hybrid hydraulic driven ankle joint prosthesis and driving method and application thereof

An ankle joint and hybrid technology, applied in prosthetics, medical science, artificial legs, etc., can solve problems such as unsmooth switching, short battery life, inconvenient control, etc., to reduce energy consumption, prolong battery life, and compact structure Effect

Pending Publication Date: 2020-07-24
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. The clutch structure is often used for switching between active and passive modes. The switching is not smooth, the control is inconvenient, and the unique advantages of the active and passive modes cannot be exerted.
[0007] 3. It is impossible to complete the energy collection of the ankle prosthesis, so that the patient consumes a lot of energy and the battery life is short

Method used

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  • Active and passive hybrid hydraulic driven ankle joint prosthesis and driving method and application thereof
  • Active and passive hybrid hydraulic driven ankle joint prosthesis and driving method and application thereof
  • Active and passive hybrid hydraulic driven ankle joint prosthesis and driving method and application thereof

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Experimental program
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Embodiment Construction

[0031] see Figure 1 to Figure 6 As shown, an active-passive hybrid hydraulically driven ankle prosthesis includes a support assembly 1, a drive assembly 2, a hydraulic cylinder assembly 3, a damping adjustment assembly 4 and an energy storage assembly 5;

[0032] The support assembly 1 includes a foot plate 11, a foot plate connecting plate 12, a boss 13, two side connecting plates 14, a square platform support plate 15, a square platform 16 and a housing 17, the middle part of the foot plate 11 and the middle part of the foot plate connecting plate 12 Fixedly connected, there are two foot plate axle seats 18 and a foot plate rotating shaft 19 on the foot plate connecting plate 12, the foot plate rotating shaft 19 is fixedly connected in two foot plate axle seats 18, two boss bearing seats 110 and An ankle joint rotation shaft 111, the ankle joint rotation shaft 111 is fixedly connected in the two boss bearing seats 110, the foot plate connecting plate 12 is fixedly connected...

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Abstract

The invention discloses an active and passive hybrid hydraulic driven ankle joint prosthesis and a driving method and an application thereof. The ankle joint prosthesis comprises a support assembly, adriving assembly, a hydraulic cylinder assembly, a damping adjustment assembly, and an energy storage component. In the active mode, a ball screw motor is adopted to drive a hydraulic piston to perform precise driving, and the angle transformation of the ankle joint is achieved; in a passive mode, a servo motor is adopted to control a rotating valve element to carry out accurate damping adjustment; the driving assembly, the damping adjustment assembly, the hydraulic cylinder assembly and the energy storage assembly are integrated, the structure is compact, and the mass is relatively light; the energy storage assembly can store energy for prolonging the endurance time, the angle transformation of the prosthetic ankle joint meets the ankle joint angle requirement of a human body in different motion states, the main and passive modes can be switched at any moment of human motion, and the change condition of the ankle joint during human body movement can be better simulated.

Description

technical field [0001] The invention relates to the technical field of rehabilitation assistance, in particular to an active-passive hybrid hydraulically driven ankle joint prosthesis, a driving method and an application thereof. Background technique [0002] According to the results of the second national sample survey of disabled people, the number of physically disabled people in my country has increased significantly. For patients with lower limb amputations, the installation of lower limb prostheses is an effective means to restore their standing and walking functions, whether it is thigh amputation or calf amputation, ankle prosthesis All are essential, so the research and development of ankle prostheses has always been the technical focus and difficulty in the research of lower limb prostheses. [0003] Ankle prostheses are divided into passive ankle prostheses and active-passive hybrid ankle prostheses. The passive ankle prosthesis has a simple structure and low cost...

Claims

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Application Information

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IPC IPC(8): A61F2/66A61F2/70A61F2/68
CPCA61F2/6607A61F2/68A61F2002/701A61F2002/6836A61F2002/5018A61F2002/5072Y02E60/16
Inventor 韩阳刘春宝任雷李振男王同建
Owner JILIN UNIV
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