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

A joint axis and adjustable technology, applied in the field of bionic human prosthetics, can solve the problems of low degree of personalized fit, uncoordinated gait, large overall size of prosthetics, etc., to improve the complex structure, increase the bearing capacity, and make the structure simple enough Effect

CN112618118BActive Publication Date: 2021-10-01JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-10-01

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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.
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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...

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Embodiment Construction

[0053] Describe the present invention below in conjunction with accompanying drawing.

[0054] Such as figure 1 , figure 2 , Figure 26 , Figure 27 As shown, the present invention is composed of a foot connecting part A, a leg connecting part B, an upper part C, a lower part D, a ball I1, a ball II2, a ball III3 and an auxiliary plate 42, wherein the foot connecting part A, the lower part D, the upper part C and the legs are connected Part B is arranged sequentially from bottom to top; the boss I22 of the slider assembly IE in the upper part C is located in the elongated chute IIf of the upper cover 7 in the leg connection part B, and the boss I22 is in clearance fit with the elongated chute IIf; the upper part The threaded rod I21 of the slider assembly IE in C passes through the long chute IIf of the upper cover 7 in the leg connection part B, and is fixed by a nut; the boss II36 of the slider assembly IIG in the lower part D is located in the foot connection part A In...