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Active mode human leg prosthetic limb

An active, prosthetic technology, used in artificial legs, prostheses, medical science, etc., can solve the problems of inability to guarantee standing stability, no power to walk, inconvenient walking, etc., to facilitate long-term walking and ensure stability. , The effect of simplifying the prosthetic mechanism

Inactive Publication Date: 2009-08-05
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prosthesis is equipped with a buffer device, and when the knee joint rotates, it can achieve fast counterclockwise rotation and slow clockwise rotation, which solves the problem of inconvenient and unsafe walking, but the prosthesis does not provide walking power during walking, and Uniaxial knee design does not guarantee stability when standing

Method used

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  • Active mode human leg prosthetic limb
  • Active mode human leg prosthetic limb
  • Active mode human leg prosthetic limb

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Embodiment Construction

[0012] Further describe the present invention below in conjunction with embodiment and accompanying drawing thereof. The embodiments and accompanying drawings are only used to describe the present invention in detail, and do not constitute a limitation to the claims of the present invention.

[0013] The active human leg prosthesis (abbreviation prosthesis of the present invention, see figure 1 -6), it is characterized in that it comprises knee joint part 1, connecting part 2 and tibial part 3 and constitutes four-bar linkage mechanism; Described connecting part 2 comprises left and right symmetrical front connecting rod 2.1, 2.1 ' and left and right symmetrical The rear connecting rods 2.2, 2.2 ', the upper ends of the left and right front connecting rods 2.1, 2.1 ' and the left and right rear connecting rods 2.2, 2.2' are connected with the knee joint part 1 as a bar of the four-bar linkage mechanism, and the left and right The lower end of the right front connecting rod 2....

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Abstract

The invention relates to an active type human leg prosthesis. The prosthesis is characterized by comprising a four-link mechanism formed by a knee joint part, a connecting part and a tibia part, wherein the connecting part comprises a front connecting rod and a rear connecting rod which are zygomorphic; upper ends of the front connecting rod and the rear connecting rod are connected with the knee joint part as one link of the four-link mechanism; lower ends of the front connecting rod and the rear connecting rod are connected with the tibia part as the other link of the four-link mechanism; a connecting piece of the knee joint part is connected with a linear transformation part of the tibia part through a rotating part; the tibia part comprises a linear drive mechanism for converting rotating motion of a direct current motor into linear motion; the lower end of a strutting piece base of the tibia part comprises a ferrule with a bolt to be connected with an artificial foot; the direct current motor for generating power is fixed on the lower part of the tibia part, and the position of the direct current motor in motion is not changed relative to the linear drive mechanism; and the rotating motion of the direct current motor is converted into linear motion to drive bending and stretching rotation of the knee joint part.

Description

technical field [0001] The invention relates to human prosthesis technology, in particular to an active human leg prosthesis powered by a DC motor. technical background [0002] Prosthesis is an important motor function compensation device for amputees. The installation of artificial limbs can restore the original shape or function of the patient's disabled limbs, reduce dysfunction, and enable the patient to live, study and work independently. The lower limb prostheses currently entering the market include single-axis knee joints, multi-axis knee joints, knee joints with locks, load-bearing self-locking knee joints, hydraulic or pneumatic control knee joints, intelligent prosthetic knee joints and Bionic knee joints, etc., meet the requirements of prosthesis wearers to a certain extent. However, the above-mentioned prostheses are all "passive" prostheses, which do not include or have no power mechanism to help people walk, and cannot actively go up and down stairs. The fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/60A61F2/70
Inventor 杨鹏耿艳利许晓云刘作军郭欣陈玲玲
Owner HEBEI UNIV OF TECH
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