Preliminary validation of a new magnetic wireless blood pump.
Preliminary validation of a new magnetic wireless blood pump.
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DOI：
10.1111/aor.12093
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发表时间：
2013-10
影响因子：
2.4
通讯作者：
Sung Hoon Kim;K. Ishiyama;S. Hashi;Y. Shiraishi;Y. Hayatsu;Masatoshi Akiyama;Y. Saiki;T. Yambe
中科院分区：
文献类型：
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作者：
Sung Hoon Kim;K. Ishiyama;S. Hashi;Y. Shiraishi;Y. Hayatsu;Masatoshi Akiyama;Y. Saiki;T. Yambe
一般来说，血泵必须体积小、结构简单并且具有足够的流体动力性能。在此，我们介绍了一种小型、简单的无线血泵的新机制，并提供无线和无电池操作。为了实现无线和无电池操作，我们实施了磁扭矩和力控制方法，该方法使用两个外部驱动器：分别是外部线圈和带有直流电机的永磁体。电力收集可用于驱动电子电路进行无线监控（观察泵的状况和温度），而无需使用内部电池。电力收集将用作驱动其他电子设备的电源，例如各种生物传感器及其驱动电路。为了兼具紧凑的尺寸和足够的泵送能力，全磁力叶轮有五级，每级包括四个后弯叶片。该泵的总容积和内部容积分别为 20 cc 和 9.8 cc，重量为 52 g。泵在 80 mm Hg 下产生约 8 L/min 的流量，发电机在 120 Ω 下产生 0.3 W 的电力。该泵还产生 1.5 升/分钟的最小流量和 30 毫米汞柱的压力，可在最大 7.5 厘米的距离内循环。
In general, a blood pump must be small, have a simple configuration, and have sufficient hydrodynamic performance. Herein, we introduce new mechanisms for a wireless blood pump that is small and simple and provides wireless and battery-free operation. To achieve wireless and battery-free operation, we implement magnetic torque and force control methods that use two external drivers: an external coil and a permanent magnet with a DC-motor, respectively. Power harvesting can be used to drive an electronic circuit for wireless monitoring (the observation of the pump conditions and temperature) without the use of an internal battery. The power harvesting will be used as a power source to drive other electronic devices, such as various biosensors with their driving circuits. To have both a compact size and sufficient pumping capability, the fully magnetic impeller has five stages and each stage includes four backward-curved blades. The pump has total and inner volumes of 20 and 9.8 cc, respectively, and weighs 52 g. The pump produces a flow rate of approximately 8 L/min at 80 mm Hg and the power generator produces 0.3 W of electrical power at 120 Ω. The pump also produces a minimum flow rate of 1.5 L/min and a pressure of 30 mm Hg for circulation at a maximum distance of 7.5 cm.