ASTM F2077 椎间融合器的特性与疲劳试验
椎间融合器用于椎间盘退变后的脊柱手术，用于促进活动脊柱节段融合。在两个椎间盘长到一起并使脊柱融合的过程中，该植入物起到前柱支撑作用。椎间盘融合术是椎间盘置换术的替代技术。
ASTM F2077 – 03 “椎间融合器的测试方法”规定了一系列静态和动态测试项目，以便对不同的融合器进行力学性能比较。这些测试包括：
- 轴向压缩测试
- 压缩剪切测试
- 扭转测试
拉扭双轴试验机，如8874伺服液压系统或ElectroPuls E1000拉扭双轴电子式动静态试验机，使器械制造商和研究人员能够对一系列设计的植入物进行静态和疲劳试验。这些系统可配温度控制水浴槽，它可提供稳定的一个体内环境模拟。
使用特殊的试验夹具， 与8874或E10000的横梁上的拉扭作动器相连接，可以实现轴向压缩、剪切压缩或压缩-扭转等试验模式下的试验。我们的测试系统中可以将Biaxial Dynacell™ 力传感器安装到拉扭双轴作动器的尾部并自动补偿惯性载荷产生的误差。
对椎间融合器测试的替代方法的在规定ASTMF2267中有明确说明。
我们建议用户审阅该标准，以便充分理解其要求。
ElectroPuls™ Electrodynamic Test Instruments
ElectroPuls instruments are state-of-the-art electrodynamic test systems for dynamic and static tests on materials & components. Powered entirely from a single-phase mains supply, they feature the latest in testing technology and a host of other user-oriented features.
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ElectroPuls™ E3000 Linear-Torsion All-Electric Dynamic Test Instrument
The ElectroPulsTM E3000 Linear-Torsion is a state-of-the-art, all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. It includes Instron® advanced digital control electronics, bi-axial DynacellTM load cell, Console software, and the very latest in testing technology – hassle-free tuning based on specimen stiffness, electrically operated crosshead lifts, a T-slot table for flexible test set ups and a host of other user-orientated features. Powered from a single-phase supply it requires no additional utilities for basic machine operation (for example, pneumatic air, hydraulics, or water).
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- 3/3/2017
- 0.7 MB