Bionic passive flexible low-energy-consumption ankle and foot prosthesis based on rigid-flexible coupling

A rigid-flexible coupling, low energy consumption technology, applied in prosthesis, medical science, artificial legs, etc., can solve the problems of excessive weight, high cost, complex structure, etc., achieve weight reduction, be beneficial to repair and maintenance, Highly flexible effects

Active Publication Date: 2020-05-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most ankle-foot prostheses on the market are rigid in design, and the common problem is that they are too heavy, complex in structure, and expensive in cost; in order to overcome these shortcomings, the concept of flexible prostheses has been proposed

Method used

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  • Bionic passive flexible low-energy-consumption ankle and foot prosthesis based on rigid-flexible coupling
  • Bionic passive flexible low-energy-consumption ankle and foot prosthesis based on rigid-flexible coupling
  • Bionic passive flexible low-energy-consumption ankle and foot prosthesis based on rigid-flexible coupling

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Experimental program
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Effect test

Embodiment 1

[0049] The bionic passive flexible low energy consumption ankle-foot joint prosthesis based on rigid-flexible coupling includes a lower leg 1 and a foot 2;

[0050] The calf part 1 includes an upper shell 3, an upper shell connecting plate 4, an auxiliary plantar dorsiflexion limiting component 5, a middle shell 6, a passive support and an upper middle shell connecting piece 7, a lower shell 8, Valgus limiting component 9, passive support and middle and lower housing connector 10;

[0051] The upper shell 3, the upper shell connecting plate 4, the auxiliary plantar dorsiflexion limiting assembly 5, the middle shell 6, and the lower shell 8 are all made of hard materials;

[0052] The passive support and the upper and middle housing connectors 7, the passive support and the middle and lower housing connectors 9 are all made of elastic materials;

[0053] The lower end of the upper shell 3 is fixedly connected to the upper end of the upper shell connecting plate 4; the upper sh...

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Abstract

The invention aims to provide a bionic passive flexible low-energy-consumption ankle and foot prosthesis based on rigid-flexible coupling. The bionic passive flexible low-energy-consumption ankle andfoot prosthesis based on the rigid-flexible coupling comprises a shank part, and a foot part; the shank part comprises an upper shell, an upper shell connecting plate piece, an auxiliary metatarsal dorsiflexion limit assembly, a middle shell, a passive support and upper-middle shell connecting piece, a lower shell, an introversion and extroversion limit assembly, and a passive support and middle-lower shell connecting piece; the upper shell, the upper shell connecting plate piece, the auxiliary metatarsal dorsiflexion limit assembly, the middle shell and the lower shell are all made of hard materials; and the passive support and upper-middle shell connecting piece and the passive support and middle-lower shell connecting piece are both made of soft materials. The bionic passive flexible low-energy-consumption ankle and foot prosthesis based on the rigid-flexible coupling has the characteristics of being high in flexibility, self-stabilized, self-balanced, impact-resistant and the like;and thus, the bionic passive flexible low-energy-consumption ankle and foot prosthesis based on the rigid-flexible coupling is capable of perfecting natural-gait walking of an amputee, and improvingself-walking energy efficiency of the amputee.

Description

technical field [0001] The invention relates to the field of ankle-foot joint prostheses, in particular to a bionic passive low-energy-consumption flexible ankle-foot joint prosthesis based on rigid-flexible coupling. Background technique [0002] Supporting the normal walking of the human body is the basic function of the joints of the lower limbs. The loss of any part of the lower limbs will have a serious impact on the gait of the amputee. When a person walks with a large walking deviation posture, in addition to reducing the overall aesthetic feeling, it will even affect other normal body functions of the person. Because of this, in the process of structural design and production assembly of lower body prostheses, the primary goal should be to imitate the normal gait of people as much as possible. [0003] At this stage, most ankle-foot prostheses on the market are rigid in design. The common problem is that they are too heavy, and the structure is complex and expensive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/66
CPCA61F2/6607A61F2002/5009A61F2002/6621A61F2002/6642
Inventor 任雷靳剑桥王坤阳钱志辉修豪华梁威
Owner JILIN UNIV
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