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

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...

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

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