Preliminary validation of a new magnetic wireless blood pump

Sung Hoon Kim, Kazushi Ishiyama, Shuichiro Hashi, Yasuyuki Shiraishi, Yukihiro Hayatsu, Masatoshi Akiyama, Yoshikatsu Saiki, Tomoyuki Yambe

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


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 9.8cc, respectively, and weighs 52g. The pump produces a flow rate of approximately 8L/min at 80mmHg and the power generator produces 0.3W of electrical power at 120Ω. The pump also produces a minimum flow rate of 1.5L/min and a pressure of 30mmHg for circulation at a maximum distance of 7.5cm.

Original languageEnglish
Pages (from-to)920-926
Number of pages7
JournalArtificial Organs
Issue number10
Publication statusPublished - 2013 Oct


  • Centrifugal pump
  • Implantable device
  • Magnetic torque and force control
  • Power harvesting
  • Wireless blood pump

ASJC Scopus subject areas

  • Bioengineering
  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering


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