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Active-passive combined low-power-consumption ankle joint prosthesis

A combined, low-power technology, applied in prosthesis, medical science, artificial legs, etc., can solve the problems of high overall energy consumption and complex structure, and achieve the effect of simple structure and meeting the actual requirements of human body movement

Inactive Publication Date: 2013-04-03
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this application is complex, and the nonlinear compression spring mechanism is used to ensure the stability of the ankle joint during flexion and extension, and the overall energy consumption is high, which needs further improvement

Method used

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  • Active-passive combined low-power-consumption ankle joint prosthesis
  • Active-passive combined low-power-consumption ankle joint prosthesis
  • Active-passive combined low-power-consumption ankle joint prosthesis

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Embodiment 1

[0026] combine figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , a low-power ankle joint prosthesis combining active and passive in this embodiment includes a support frame mechanism, an active drive mechanism, an ankle joint mechanism, a series elastic drive mechanism, a parallel spring mechanism and an elastic foot plate mechanism, and the support frame mechanism and The elastic foot plate mechanisms are connected, and the support frame mechanism is located above the elastic foot plate mechanism, and the active drive mechanism, the ankle joint mechanism, the series elastic drive mechanism, and the parallel spring mechanism are fixedly connected in the support frame mechanism.

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Abstract

The invention discloses an active-passive combined low-power-consumption ankle joint prosthesis, belonging to the technical field of prosthetics and orthotics. The active-passive combined low-power-consumption ankle joint prosthesis comprises a support frame mechanism, an active driving mechanism, an ankle shaft joint mechanism, a series elastic driving mechanism, a parallel spring mechanism and an elastic foot plate mechanism, wherein the support frame mechanism is located above the elastic foot plate mechanism, and the drive part of the ankle joint prosthesis is an active-passive combined drive system formed by combining the active drive mechanism, the ankle shaft joint mechanism, the series elastic driving mechanism and the parallel spring mechanism. According to the invention, the energy storage and energy release functions of the series elastic driving mechanism and the parallel spring mechanism are utilized fully, the active driving mechanism is used for driving only in a proper period in a traveling process, that is, a motor is used for driving only in a dorsal flexion stage, so that the entire ankle joint prosthesis has the advantage of low power consumption; and in addition, the active-passive combined low-power-consumption ankle joint prosthesis is designed according to exercise bionics based on human motion biomechanical studies, can meet the actual requirements of human motion and is simple in structure.

Description

technical field [0001] The invention relates to the technical field of prosthetics and orthotics, in particular to an active-passive combined low-power ankle joint prosthesis. Background technique [0002] In today's society, due to traffic accidents, diseases and other reasons, the number of below-knee amputations is gradually increasing, and the most common ways for lower limb amputee to compensate for their walking ability defects are wheelchairs, crutches and artificial limbs. Wheelchairs occupy a large area and are limited to places that wheeled machines cannot reach, such as walking on stairs. The use of crutches takes up the functions of both hands and reduces the physical function of the wearer. Wearing prosthetics can achieve compensation for the missing functions of the human body, and has advantages in terms of decoration and walking comfort. [0003] At present, there are many types of ankle joint prostheses, classified according to the driving mode, mainly inc...

Claims

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Application Information

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IPC IPC(8): A61F2/66A61F2/70
Inventor 韩亚丽朱松青高海涛许有熊
Owner NANJING INST OF TECH
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