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Stiffness adjustable orthopedic insole and its 4D printing method

A molding method and adjustable technology, applied in the field of orthopedic insoles, can solve problems such as unfavorable foot orthopedics, complicated manufacturing process, and increased foot load, and achieve the effects of saving materials and energy, simple and light structure, and reducing pollution

Active Publication Date: 2021-03-02
国家康复辅具研究中心
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these invention patents all have a common shortcoming, that is, this type of adjustable rigidity orthopedic insole contains a relatively complicated mechanical device inside, which is relatively heavy and artificially increases the load on the foot, which is not conducive to the foot in actual application. Normal orthopedic, and the manufacturing process is more complicated

Method used

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  • Stiffness adjustable orthopedic insole and its 4D printing method
  • Stiffness adjustable orthopedic insole and its 4D printing method
  • Stiffness adjustable orthopedic insole and its 4D printing method

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings, but the technical method of the present invention is not limited to the specific implementation methods listed below.

[0039] Such as figure 1 As shown, a method for 4D printing of orthopedic insoles with adjustable stiffness disclosed in the present invention comprises the following steps:

[0040] 1) Using the three-dimensional optical scanning system of the human foot to obtain the three-dimensional shape characteristic data of the patient's foot, and establish the three-dimensional point cloud model of the patient's foot;

[0041] 2) Using nuclear magnetic resonance imaging technology, scan and obtain the image data of the clubfoot of the patient in the standing position, and use MIMICS medical software to establish a three-dimensional biomechanical model of the clubfoot of the patient including muscles, ligaments and bones;

[0042] 3) Use the human plan...

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Abstract

The invention provides a rigidity-adjustable orthopedic insole. The insole is made of upper and lower layers including an intelligent deformation layer and a structural support layer, wherein the intelligent deformation layer is closely attached to the sole of a patient, made of a flexible polymer intelligent material and non-uniformly distributed in a foot arch area of the insole; the structuralsupport layer is the lowest layer and made of a structure material with bearing capacity. The intelligent deformable material is added to the orthopedic insole, time dimension is introduced on the basis of existing 3D printing, and 4D printing is formed. With change of the recovery condition of foot malformation degree of the patient in the orthopedic process, the intelligent deformation layer inthe orthopedic insole obtained through 4D printing forming has self-deformation such as expansion, bending, shrinkage and folding under excitation of an external field, and orthopedic insole shape andrigidity timely coordinated with foot malformation of the patient are formed, so that personalized customization of the orthopedic insole and timely self-adjustment of rigidity and shape are realized.

Description

technical field [0001] The invention relates to an orthopedic insole with adjustable stiffness and a 4D printing forming method thereof. The invention belongs to the technical field of medical rehabilitation aids and additive manufacturing molding. Background technique [0002] In foot diseases, foot deformities such as flat feet, plantar fasciitis, foot inversion, etc., will seriously affect the quality of life and physical health of patients. In this regard, foot and ankle orthopedic doctors usually use custom-made orthopedic insoles to treat these foot diseases step by step, so that the foot bone deformities are gradually corrected until the walking function of the patient's feet is restored. [0003] With the popularization of 3D printing technology, the production method of orthopedic insoles has changed from traditional plaster molding to 3D rapid printing. After searching, it was found that patent documents CN 104699908 B and CN 104908319 A both disclosed their resp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A43B17/14A43B7/14B29C64/118B29C64/386B33Y10/00B33Y40/00B33Y70/00B33Y50/02B33Y50/00B33Y80/00
CPCA43B7/1445A43B17/14B33Y10/00B33Y40/00B33Y80/00B29C64/118B29C64/386
Inventor 张志强樊瑜波宋亮郭俊超
Owner 国家康复辅具研究中心
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