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Joint axis angle adjustable type multi-axis ankle joint prosthesis

A joint axis and adjustable technology, which is applied in the field of bionic human prosthetics, can solve the problems of low adaptability, low degree of personalized fit, and poor coordination between the wearer's limbs on the affected side and the normal side, etc., and achieves a simple adjustment process and improved with moderately low effect

Active Publication Date: 2020-09-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the ankle joint prostheses involved in the market are mainly divided into active prostheses and passive prostheses. Among them, the passive ankle prostheses are mainly designed with a single axis, and their kinematic characteristics are quite different from those of healthy human limbs. The gait is unnatural during use, the walking process is uncomfortable, and the adaptability to different environmental road surfaces is low
The existing multi-axis ankle prosthetic products on the market have fixed two-axis spatial angles, and the biomechanical characteristics of different amputee walking are different, resulting in a low degree of personalized fit for such products, and the affected side of the wearer is different from the normal one. Poor motor coordination of lateral limbs

Method used

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  • Joint axis angle adjustable type multi-axis ankle joint prosthesis
  • Joint axis angle adjustable type multi-axis ankle joint prosthesis
  • Joint axis angle adjustable type multi-axis ankle joint prosthesis

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Embodiment Construction

[0052] Such as figure 1 and figure 2 As shown, the present invention is composed of front part A, joint shaft part B, right part C, upper cover D, rear part E, left part F, bottom cover G, spring I1, spring II2, spring III3, and spring IV4. The lower end of the front connecting plate 5 of part A is fixed on the front end of the bottom cover G; the lower end of the rear connecting plate 12 of the rear part E is fixed on the rear end of the bottom cover G; the upper end of the right connecting plate 22 of the right part C is fixed on Below the right end of the upper cover D; the upper end of the left connecting plate 17 of the left part F is fixedly connected under the left end of the upper cover D; the joint shaft part B is located at the front part A, the right part C, the upper cover D, the rear part E, and the left part F , and the space enclosed by the bottom cover G, and the joint shaft part B is in a cross state with the rear high and the front low; Slot sliding connec...

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Abstract

The invention discloses a joint axis angle adjustable type multi-axis ankle joint prosthesis, and belongs to the technical field of bionic human prostheses. The joint axis angle adjustable type multi-axis ankle joint prosthesis is composed of a front part, a joint axis part, a left part, an upper cover, a rear part, a right part, a bottom cover and four springs, wherein the joint axis part is positioned in a space defined by the front part, the left part, the upper cover, the rear part, the right part and the bottom cover; the space angle of the joint axis below is adjusted by adjusting the positions of groove plates in the front part and the rear part; and the space angle of the ankle joint axis is adjusted by adjusting the positions of groove plates in the left part and the right part, and therefore the prosthesis can be attached to the human ankle joint structure to a larger extent. Different ankle joint axis angles can be adjusted for different wearers, and therefore the comfort degree of the wearers is improved, the movement coordination of the affected side limb and the normal side limb of the wearers is improved, the environment adaptability is improved, the joint axis angleadjustable type multi-axis ankle joint prosthesis can adapt to different road surface changes, and the energy consumption of the wearers is reduced.

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 adjustable joint axis angles. Background technique [0002] At present, the ankle prostheses involved in the market are mainly divided into two types: active prostheses and passive prostheses. Among them, the passive ankle prostheses are mainly designed with a single axis, and their kinematic characteristics are quite different from those of healthy human limbs. The gait of the user is unnatural during use, the walking process is uncomfortable, and the adaptability to different environmental road surfaces is low. The existing multi-axis ankle prosthesis products on the market have fixed two-axis spatial angles, and the biomechanical characteristics of different amputee walking are different, resulting in a low degree of personalized fit for such products, and the affected side of the wearer is different from the normal...

Claims

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Application Information

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IPC IPC(8): A61F2/66A61F2/68A61B5/107
CPCA61B5/1071A61F2/6607A61F2/68
Inventor 任雷曾懿王坤阳钱志辉修豪华梁威
Owner JILIN UNIV
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