A multi-axis ankle prosthesis with spherical structure and adjustable joint axis angle

Abstract

A multi-axis ankle joint prosthesis with adjustable joint axis angle in a spherical structure belongs to the technical field of bionic human prosthesis. The invention consists of a foot connection part, a leg connection part, an upper part and a lower part. Rotation: by adjusting the positions of the external parts, the effect of adjusting the space angle of the joint axis is achieved, so that the artificial limb of the present invention can be close to the ankle joint structure of the human body to the greatest extent. And the adjustment process is all carried out outside the product, which makes the adjustment more convenient. Due to the spherical structure, the appearance is closer to the human body, the structure is more stable, and the carrying capacity is stronger. The structure of the invention is very simple, and the multi-axis design makes the wearer's comfort high, and can improve the movement coordination of the limbs on the affected side and the normal side, can adapt to different road surface changes, and reduces the energy consumption of the wearer.

Description

technical field [0001] The invention belongs to the technical field of bionic human body prosthesis, in particular to a multi-axis ankle joint prosthesis with a spherical structure and an adjustable joint axis angle. Background technique [0002] At present, the ankle joint prosthesis products on the market are mainly square in shape, which is not natural and beautiful for the wearer. Moreover, the current ankle joint prosthesis uses the shaft as the main load-bearing component, and the force generated by people during walking It is very large, resulting in a large shaft diameter and a large overall size of the prosthesis; the human ankle joint shaft is composed of multi-axis. In order to better improve the wearer's sense of use, the multi-axis ankle joint prosthesis is the current There are also some multi-axis ankle prosthetic products on the market, but the two-axis space angle of these prostheses is fixed. For different amputee patients, the ankle joint angles of their h...

AI Technical Summary

Problems solved by technology

[0002] At present, the ankle joint prosthesis products on the market are mainly square in shape, which is not natural and beautiful for the wearer. Moreover, the current ankle joint prosthesis uses the shaft as the main load-bearing component, and the force generated by people during walking It is very large, resulting in a large shaft diameter and a large overall size of the prosthesis; the human ankle joint shaft is composed of multi-axis. In order to better improve the wearer's sense of use, the multi-axis ankle joint prosthesis is the current There are also some multi-axis ankle prosthetic products on the market, but the two-axis space angle of these prostheses is fixed. For different amputee patients, the ankle joint angles of their healthy limbs are different, which leads to the personalization of such products. The degree of fit is low, the movement coordination between the affected side and the normal side of the wearer is poor, the gait is uncoordinated, and the adaptability to different road surfaces is poor

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