基于有限元分析,识别手臂形下过度接触压力
Xinyang Tan1, Saeema Ahmed-Kristensen2, Qian Zhu3
1School of Design, Shanghai Jiao Tong University, Shanghai, China.
Prosthetics and orthotics international
|May 21, 2024
概括
有限元分析准确地预测了手 Orthoses 下的过度接触压力. 这种方法有助于临床医生调整设备,并指导改进的整形设计的开发,以获得更好的患者结果.
科学领域:
- 生物力学 生物力学
- 医疗设备工程 医疗设备工程
- 计算力学 计算力学 计算力学
背景情况:
- 手关节底下的过度接触压力很难量化,阻碍了精确的临床调整.
- 了解压力分布对于有效的整形治疗和患者舒适性至关重要.
研究的目的:
- 开发和验证一个数值方法,用于预测手臂骨架下的高等级接触压力.
- 确定针对性干预的过度压力的关键位置.
主要方法:
- 用有限元素分析 (FEA) 建模了手,骨架和骨.
- 材料刚度变化 (脂肪与皮肤) 用于预测压力范围.
- 实验测量验证了FEA的预测.
主要成果:
- FEA确定了12个具有高接触压力的解剖位置.
- 观察到的最高压力是在指甲手腕关节 (13-78 KPa).
- 成功确定了六个过度接触压力位置,与实验数据保持一致.
结论:
- FEA方法准确地预测了手套下面的接触压力.
- 结果为orthosis设计,调整和传感器或穿孔的放置提供了信息.
- 这种方法增强了对形-组织接口机制的理解.
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