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Artificial limb performance testing system under asymmetric alternating loads

A technology of alternating load and test system, applied in the direction of prosthesis, medical science, etc., can solve the problems of early research process and long time, and achieve the effect of improving reliability

Inactive Publication Date: 2018-11-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electric drive prosthetics became the focus of early research on lower limb prostheses due to their mechanical structure. The research process took a long time. At present, mature products have come out, while hydraulic drive prostheses are still in the research and development stage at this stage.

Method used

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  • Artificial limb performance testing system under asymmetric alternating loads
  • Artificial limb performance testing system under asymmetric alternating loads
  • Artificial limb performance testing system under asymmetric alternating loads

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Experimental program
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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The performance testing system of asymmetric alternating load lower limb prosthesis of the present invention, such as figure 1 , figure 2 As shown, it includes a bionic prosthesis composed of a human body center-of-mass motion system 1, a hip joint drive system 2, a bionic prosthetic thigh 3, a knee joint drive system 4, a bionic prosthetic calf 5, a treadmill 6 and a prosthetic fixed gantry 7.

[0033] The aforementioned humanoid center-of-mass motion system 1 , hip joint drive system 2 , bionic prosthetic thigh 3 , knee joint drive system 4 , and bionic prosthetic lower leg 5 are connected sequentially from top to bottom, and installed on the prosthetic fixed gantry 7 .

[0034] Such as image 3 As shown, the prosthetic fixed gantry 7 is a cubic frame structure composed of beams and columns, and the connection between the beams and the columns is ...

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Abstract

The invention discloses an artificial limb performance testing system under asymmetric alternating loads. The system comprises a human body imitating mass center movement system, a hip joint driving system, a bionic artificial limb thigh, a knee joint driving system, a bionic artificial limb shank, a running machine and an artificial limb fixing portal frame. According to the artificial limb performance testing system, driving force is provided through active control, by outputting asymmetric alternating complex movement, the artificial limb performance testing system can simulate walking of the human body within one movement period, a real human body lower limb rigidity curve is matched, walking gaits similar to human body biological characteristics are provided for a hydraulic active ankle joint artificial limb assembled under an interface, and a good testing environment is acquired under the system. Compared with a common electric driving artificial limb system, by means of the artificial limb performance testing system, the mass center movement system is additionally arranged, mass center fluctuation of human body movement can be simulated under the working condition, and the precision of the testing system is improved.

Description

technical field [0001] The invention relates to a test system, in particular to a performance test system for lower limb prosthetics under asymmetrical alternating loads. Background technique [0002] The physical disability has seriously affected the normal life and work of the disabled. Therefore, the rehabilitation project for the disabled has become an important factor for the harmonious development of our society. Prosthesis is one of the important means for the physically disabled to solve mobility obstacles. Different from upper limb prosthesis, the control of lower limb prosthesis involves the problem of human body movement balance, which has a critical impact on the daily life of the disabled. Lower limb prostheses are mainly divided into three types of prostheses: hip joint, knee joint and ankle joint according to different amputation parts of lower limbs. Electric drive prosthetics became the focus of early research on lower limb prostheses due to mechanical stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/76
CPCA61F2/76A61F2002/7695A61F2240/008
Inventor 王少萍池小楷张益鑫王兴坚杨佳伟方菁
Owner BEIHANG UNIV