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相关实验视频

Updated: Feb 28, 2026

3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects
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通过3D压力映射优化3D打印假肢的精简定制制造.

Hadi Moeinnia1, Carl Ganzert2, Loren Schubert2

  • 1Additive Manufacturing Laboratory, School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, V3T ON1, Canada.

Biosensors & bioelectronics
|February 26, 2026
PubMed
概括

本研究介绍了一种新的数字工作流程,用于使用3D压力映射和格子结构设计假肢插座. 这种创新方法提高了肢体切断者的舒适性,并减少了对肢体切断者的冲击力.

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科学领域:

  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学
  • 康复工程 康复工程 康复工程

背景情况:

  • 假肢插座设计显著影响用户的舒适性和移动性.
  • 目前的方法往往无法充分解决动态压力变化的问题.
  • 改进肢体插座接口对于假肢性能至关重要.

研究的目的:

  • 开发和验证用于假肢插座设计的新型数字工作流程.
  • 将3D压力映射与密度分级格子结构集成.
  • 为了提高舒适度和减少肢体接口的冲击力.

主要方法:

  • 开发了一款带有电容,灵感来自于原木的压力传感器的可穿戴.
  • 动态接触压力在各种静态和动态活动期间测量了腿骨转移截肢者的动态接触压力.
  • 处理压力数据以创建一个3D压力图,指导格子结构 (甲状腺,钻石,Neovius) 的密度分级.
  • 用有限元素分析 (FEA) 来评估能量吸收.

主要成果:

  • 峰值压力高达7500千帕,坡道下降带来了关键的负载挑战.
  • 三维压力图为细胞填充结构的密度分级提供了信息.
  • 与固体填充相比,分级的状腺结构吸收的能量显著更多 (在站立时高达1600%,在走路时高达1290%).
关键词:
增材制造 增材制造是一种增材制造.细胞结构的细胞结构.密度分级 密度分级 密度分级压力映射压力映射假肢插座 假肢插座是一个假肢插座.可穿戴设备是可以穿戴的.

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  • 这种新的设计方法有效地减轻了局部接触压力.

    • 结论:

    • 该研究验证了一种基于压力,增材制造的假肢插座设计.
    • 这种方法有可能显著提高用户舒适度和假肢性能.
    • 整合3D压力映射和密度分级格子结构在假肢技术中提供了有前途的进步.