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A Prosthetic Foot Plate with Stiffness Gradient Variation with Three-dimensional Curvature Characteristics of Human Foot Arch

A technology of gradient change and curvature, applied in the direction of artificial legs, etc., can solve the problems of increasing the weight and cost of the prosthetic foot, weak lateral strength of the prosthetic foot, reducing the use effect and comfort of the prosthesis, and achieving intelligent response, timely and reliable, Good propulsion function and simple design structure

Active Publication Date: 2021-07-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the carbon fiber prosthetic foot is basically straight in the horizontal direction, and is made with reference to the longitudinal arch characteristics of the human foot. Weakness, thickened carbon fiber boards are generally used in the market to solve the strength problem, but this increases the weight and cost of the prosthetic foot, and reduces the use effect and comfort of the prosthesis

Method used

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  • A Prosthetic Foot Plate with Stiffness Gradient Variation with Three-dimensional Curvature Characteristics of Human Foot Arch
  • A Prosthetic Foot Plate with Stiffness Gradient Variation with Three-dimensional Curvature Characteristics of Human Foot Arch
  • A Prosthetic Foot Plate with Stiffness Gradient Variation with Three-dimensional Curvature Characteristics of Human Foot Arch

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Embodiment Construction

[0030]The present invention is described below in conjunction with accompanying drawing.

[0031] Such as figure 1 , figure 2 and Figure 12 As shown, the present invention is composed of the forefoot carbon fiber curved plate A, the heel carbon fiber curved plate B, the connecting assembly C, the bolt group I1, the bolt group II2 and the bolt group III3, wherein the square cone joint 6 of the connecting assembly C, the connecting assembly C The upper connection base 7, the rear part of the forefoot carbon fiber curved plate A, the upper part of the heel carbon fiber curved plate B and the lower contact plate 8 of the connection assembly C are arranged in sequence from top to bottom; the square platform 6b of the square cone joint 6 in the connection assembly C Placed in the square shallow sinker 7d of the upper connection base 7, and fixed through the bolt group I1; the left hole III7c of the left circular arc side wing 7b of the upper connection base 7 in the connection a...

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Abstract

A prosthetic foot plate with a gradient of stiffness change with the characteristics of three-dimensional curvature of human foot arch belongs to the technical field of artificial limb manufacturing. The three-dimensional curvature feature designs the three-dimensional surface shape of the prosthetic foot, and provides a prosthetic foot with a gradient distribution of stiffness. Compared with the horizontally straight carbon fiber foot, on the one hand, it improves the overall rigidity of the prosthetic foot while reducing the weight of the prosthetic foot, achieving better support and propulsion and a lighter and more comfortable use experience; The stiffness gradient changes with small anterior stiffness, high medial toe stiffness, and small lateral toe stiffness can dynamically meet the different demands on the stiffness of different parts of the prosthetic foot in different road conditions and different walking stages, and realize the prosthetic foot’s response to movement more smoothly. Smart and timely and reliable.

Description

technical field [0001] The invention belongs to the technical field of artificial prosthetics, and in particular relates to a prosthetic foot plate with a stiffness gradient change combined with the curvature characteristics of the transverse arch of the human foot plate. Background technique [0002] With the rapid increase of modern social problems such as diseases, aging and traffic accidents, the number of amputee patients is increasing day by day. Installing artificial limbs is an effective engineering method to make up for the functional loss caused by missing limbs. Therefore, the research and development of artificial limb equipment and life-assisted equipment for the disabled has attracted attention from all over the world. In recent years, carbon fiber reinforced composite materials have been widely used in the field of prosthetics due to their advantages of being lighter and more beautiful. At present, the carbon fiber prosthetic foot is basically straight in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/66
CPCA61F2/66A61F2002/665A61F2002/6664
Inventor 任雷薛益峰王坤阳钱志辉修豪华梁威任露泉
Owner JILIN UNIV