Roller screw electric motor ventricular assist device.
Roller screw electric motor ventricular assist device.
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滚柱丝杠电动马达心室辅助装置。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
Pierce Ws
中科院分区：
文献类型：
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作者：
Wayne E. Richenbacher;Walter E. Pae;James A. Magovern;Gerson Rosenberg;Alan J. Snyder;Pierce Ws
滚柱丝杠电动 VAD 更容易制造，并且比之前描述的鼓形凸轮模型轻 25%。该设备需要 12 至 15 W 的功率来泵送 6 至 8 l/min，同时将溶血降至最低。电机驱动器在体内运行长达 93 天，没有明显的磨损。在 VAD 功能期间，顺应室容积变化 100 cc，但同时保持压力变化低于 15 mmHg。顺应室体积损失 2 至 5 cc/天是由于气体通过 SPU 传输。皮下采样口可以方便地进入密封系统。
The roller screw electric VAD is easier to manufacture and 25% lighter than the previously described drum cam model. This device requires 12 to 15 W to pump 6 to 8 l/min with minimal hemolysis. The motor drive has functioned for periods up to 93 days in vivo with no measurable wear. The compliance chamber volume varies by 100 cc during VAD function but does so while maintaining pressure variations below 15 mmHg. Compliance chamber volume loss of 2 to 5 cc/day is explained by gas transport through SPU. The subcutaneous sampling port provides ready access to the sealed system.