骨生物力学特性测试系统

基金项目:

国家自然科学基金（61503018）

详细信息

Testing System for Biomechanical Properties of Bone

1 School of Instrumentation Science and Optoelectronics Engineering, Beihang University, Beijing, 100191;
2 State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, 100191;
3 Department of Osteology, General Hospital of PLA, Beijing, 100853

摘要: 该文设计了一种新型骨生物力学特性测试系统，以实现模拟真实受力情况并对骨骼及骨固定架进行力学特性评估。该系统包括运动平台及伺服电机系统、传感器及硬件电路系统和上位机软件系统。为验证设计的性能，在对力传感器进行标定的基础上，以羊的胫骨为对象，对其受力情况及疲劳特性进行了力学测试。结果表明，在载荷频率为1 Hz，大小为50 kg，循环18 000次的条件下，固定架性能仍然良好，证明了设计的可行性。
- 生物力学特性 /
- 测试系统 /
- 拉压实验 /
- 疲劳实验
Abstract: A novel testing system is designed to simulate the mechanical performance and evaluate the biomechanical properties of the bone and the corresponding bone fixator. It is mainly composed of movement platform and servo motor system, sensors and hardware circuit system and software system. In order to prove the feasibility of the design, on the basis of the calibration for the force sensor, the fatigue experiment is carried out using the tibia of the sheep. It is concluded from the result that under the condition of 1 Hz in frequency, 50 kg in loading force and 18 000 cycles, the bone fixator can be still in good condition, which proves the feasibility of the design.
- biomechanical properties /
- test system /
- pull-pressure experiment /
- fatigue experiment

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