Receiving cavity for lower limb prosthesis and preparation method thereof

A technology of sockets and prostheses, which is applied in the field of sockets and preparations of lower limb prostheses, can solve the problems of being unable to afford the cost of assembling sockets, failing to meet the needs of the society, and high costs, so as to improve comfort and function transfer performance, The effect of reducing the requirement of professional level and increasing the degree of personalization

Active Publication Date: 2019-04-02
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the design process of the socket, the production personnel should constantly modify the socket model according to the user's try-on experience and their own experience. The whole process needs to make multiple temporary sockets for try-on. The whole design process takes a long time and costs a lot. high
Regardless of whether the final customized socket product is formed by sheet metal thermocompression or fiber-reinforced resin curing, the material of each part is completely uniform and uniform, and it is impossible to carry out

Method used

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  • Receiving cavity for lower limb prosthesis and preparation method thereof
  • Receiving cavity for lower limb prosthesis and preparation method thereof
  • Receiving cavity for lower limb prosthesis and preparation method thereof

Examples

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Example Embodiment

[0038] The invention provides a socket for lower limb prosthesis and its preparation method. By constructing a three-dimensional finite element model of the user's residual limb, the biomechanical analysis of the residual limb-socket interface is carried out, and the shape, material removal and reinforcement area of ​​the socket are analyzed. , the elastic modulus of the material in the socket interface area and other key parameters are automatically adjusted and verified, and finally the designed and optimized socket is manufactured by means of additive manufacturing. By converting the professional experience of high-level prosthetic technicians and the subjective feelings of users into measurable scientific basis, the requirements for the professional level of production personnel in the process of designing prosthetic sockets can be greatly reduced, the design process can be simplified, and socket design costs can be reduced. cost. The shape-controllable characteristics of ...

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Abstract

The present invention discloses a receiving cavity for a lower limb prosthesis and a preparation method thereof. An outer surface of a flexible receiving cavity main body closely fits with an inner surface of a rigid receiving cavity skeleton, a lower part of the rigid receiving cavity skeleton is connected with a connecting device, the connecting device is connected with a prosthetic knee joint component through a threaded connection member, the rigid receiving cavity skeleton is provided with a material removing region and a material reinforcing region, shapes, positions and thickness of thematerial removing region and material reinforcing region are determined according to biomechanical interface analysis and structural topology optimization, the flexible receiving cavity main body isprovided with gradient-distributed porous filling regions, and shapes, positions, filling structures and gradient distribution of filling percentage of the filling regions are determined according tothe biomechanical interface analysis of multi-gait residual limbs. A personalization degree of the receiving cavity can be significantly improved and the receiving cavity improves comfort and functiontransfer performance of users during use.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a socket for a lower limb prosthesis and a preparation method thereof. Background technique [0002] In recent years, the number of amputations caused by traffic accidents, natural disasters, cardiovascular diseases, diabetes and other diseases has been increasing. According to the "Major Data Bulletin of the Second National Sampling Survey on Disabled Persons", the total number of people with various types of disabilities in my country is about 82.96 million, of which about 24.12 million are physically disabled, and about 2.26 million are amputated, including lower limb amputations. Most of them. Prosthetics are an important means to help physically disabled users recover and return to society by compensating for the shape and function of their limbs. The prosthesis is mainly composed of three parts, that is, the supporting part that imitates the function of...

Claims

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Application Information

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IPC IPC(8): A61F2/60A61F2/80
Inventor 王玲汤磊单存清李涤尘
Owner XI AN JIAOTONG UNIV
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