Mechanical Analysis of a Customized Hand Orthosis Based on 3D Printing

Abstract

A clinical hand orthosis is used to relieve the finger spasm of stroke patients. Generally, there are three dimension size of the hand orthosis for different patients, but it can not achieve personalized precision treatment. To handle these problems, 3D printing technologies were used to make a customized hand orthosis. In order to make it affordable in clinical application and individual design, this paper provided a mechanical analysis model. First a middle finger model of stroke patients was built, then based on the three-point pressure-correction method, its mechanical properties were tested and its bending strength was calculated by finite element analysis model.