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Manufacturing method of ankle-foot orthosis based on 3D printing technology

An ankle-foot orthosis and 3D printing technology, applied in the field of rehabilitation medicine, can solve the problems of orthoses that are not fully suitable for patients, complex production process, long production time, etc., and achieve great practical significance, reduce side effects, and minimize the effect of quality.

Active Publication Date: 2019-05-17
BEIJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Ankle-foot orthoses produced by traditional methods have many disadvantages, such as complicated production process, long production time and some orthotics cannot be completely suitable for patients, etc.

Method used

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  • Manufacturing method of ankle-foot orthosis based on 3D printing technology
  • Manufacturing method of ankle-foot orthosis based on 3D printing technology
  • Manufacturing method of ankle-foot orthosis based on 3D printing technology

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Embodiment Construction

[0044] The specific implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] refer to Figure 1-Figure 9 , a method for manufacturing an ankle-foot orthosis based on 3D printing technology, used for ankle joint rehabilitation, comprising the following steps:

[0046] Step 1. Study on ankle walking gait

[0047] 1.1) Analyze the physiological structure of the ankle joint, establish a simplified model of the ankle joint, and divide the human foot into three main parts, namely the tibia, ankle joint and foot arch.

[0048] 1.2) Understand the characteristics of the ankle joint walking gait cycle, and draw the ankle joint torque-angle curve of a healthy human body walking under natural conditions.

[0049] Step 2. Based on the analysis of the physiological structure of the ankle joint, an initial three-dimensional model of the ankle-foot orthosis is established. The data of the initial 3D model come...

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Abstract

The invention discloses a manufacturing method of an ankle-foot orthosis based on a 3D printing technology and relates to the field of rehabilitation therapy. The improved manufacturing method of theankle-foot orthosis mainly comprises the following steps that (1) an ankle joint walking gait is researched; (2) an initial three-dimensional model of the ankle-foot orthosis is established based on analysis and research of the ankle joint walking gait; (3) the initial three-dimensional model of the ankle-foot orthosis is subjected to dynamic analysis; (4) a prop part of the ankle-foot orthosis issubjected to topological optimization; (5) the optimized ankle-foot orthosis is reconstructed geometrically; (6) a reconstructed ankle-foot orthosis model is subjected to transient dynamic analysis;and (7) a 3D printer is used for conducting 3D printing on the final model. The 3D-printed ankle-foot orthosis is small in mass and good in air permeability, can achieve the power assisting effect andhas a good rehabilitation therapy effect.

Description

technical field [0001] The invention belongs to the field of rehabilitation medicine, and relates to a method for manufacturing an ankle-foot orthosis based on 3D printing technology. Background technique [0002] my country has a large population base and an aging society, with more than 2 million new stroke patients every year. The prognosis of stroke is poor, and a high proportion of patients have lower limb motor dysfunction caused by foot drop. In addition, equinus varus and valgus are also frequently-occurring orthopedic diseases in children in my country, requiring ankle joint release and orthopedic surgery. As the movement joint of the human body, the ankle joint is also the joint closest to the ground and bears the most weight. Especially when running and jumping, the ankle joint bears huge loads and impacts. Therefore, ankle sprains are also relatively common in daily life. common. After ankle joint injury, if timely and correct treatment is not carried out, sym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/153B29C64/386B33Y50/00
Inventor 李剑锋薛冉董明杰刘瑞丰李国通
Owner BEIJING UNIV OF TECH
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