Durability testing of components for the Jarvik 2000 completely implantable axial flow left ventricular assist device.
Durability testing of components for the Jarvik 2000 completely implantable axial flow left ventricular assist device.
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Jarvik 2000 完全植入式轴流左心室辅助装置组件的耐久性测试。
DOI：
10.1097/00002480-199809000-00090
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Jarvik,R
中科院分区：
文献类型：
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作者：
Marlinski,E;Jacobs,G;Deirmengian,C;Jarvik,R
电缆引线测试仪和实时轴承测试仪已经开发出来，用于测试未来的植入式电子产品、经皮能量传递系统（TETS）和相关的互连电缆设计。电缆/引线测试仪于1997年用于测试先前考虑的可植入波纹管-连接器-电缆系统，一次可测试多达10个样品。XYZ-[θ]运动应用于试样的近端，其远端固定。实时轴承测试仪是模拟环路配置，被测轴承安装在功能齐全的良好制造规范组装的轴流泵中。在轴流泵流入处施加模拟左心室脉动预负荷，而在轴流泵流出处施加80mmhg的主动脉后负荷，泵入固定高度的无流出限制管。该系统中使用的热血浴盐水经过紫外线消毒，并通过连接在主预压流体储层外部的商业盐水调节系统进行机械过滤。电缆引线测试仪和实时轴承测试仪设计包括用于体外系统测试的完整Jarvik 2000左心室辅助装置（Transicoil Medical, Norristown， PA）。
A cable-lead tester and real time bearing tester have been developed with provisions to test future implantable electronics, transcutaneous energy transfer system (TETS), and related interconnect cabling designs. The cable/lead tester, used in 1997 to test a previously considered implantable bellows-connector-cabling system, can test up to 10 samples at a time. XYZ-[theta] motions are applied to the proximal end of the test specimen with its distal end fixed. The real time bearing tester is of a mock loop configuration with the bearings under test housed in a fully functional, Good Manufacturing Practices assembled axial pump. A simulated left ventricular pulsatile preload is applied to the inflow of the axial pump, while its outflow is subjected to an 80 mmHg aortic afterload by pumping into a fixed height tube with no outflow restriction. The heated blood bath saline used in this system is UV sterilized and mechanically filtered by use of a commercial salt water conditioning system attached external to the main preload fluid reservoir. The cable-lead tester and real time bearing tester design include provisions to house a complete Jarvik 2000 left ventricular assist device (Transicoil Medical, Norristown, PA) for in vitro system testing.