Transcutaneous DC-DC converter for totally implantable artificial heart using synchronous rectifier

Hidetoshi Matsuki; Yoshihiko Yamakata; Noriyoshi Chubachi; Slim Ichi Nitta; Hiroyuki Hashimoto

doi:10.1109/20.539509

Transcutaneous DC-DC converter for totally implantable artificial heart using synchronous rectifier

Hidetoshi Matsuki, Yoshihiko Yamakata, Noriyoshi Chubachi, Slim Ichi Nitta, Hiroyuki Hashimoto

IRIDeS - Resilient EICT Research Promotion Office

Tohoku University

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

To drive a totally implantable artificial heart for a long period with trauscutaneous energy transmission, it is necessary that the temperature rise of the devices implanted inside the human body be minimized. In this paper we study the properties of a transcutaneous DC-DC converter which transfers energy from an external source to a vibrating flow pump within the body. The temperature rise of the internal rectifying circuit has been reduced by as much as 30 % to 50 % by employing synchronous rectifiers rather than Schottky diodes. In addition, we have investigated a method for controlling the vibrating flow pump(VFP). This pump would be a constituent part of a totally implantable artificial heart. Also, the use and current limitation of an implanted rechargeable battery for emergency use is discussed.

Original language	English
Pages (from-to)	5118-5120
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	32
Issue number	5 PART 2
DOIs	https://doi.org/10.1109/20.539509
Publication status	Published - 1996

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AU - Hashimoto, Hiroyuki

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AB - To drive a totally implantable artificial heart for a long period with trauscutaneous energy transmission, it is necessary that the temperature rise of the devices implanted inside the human body be minimized. In this paper we study the properties of a transcutaneous DC-DC converter which transfers energy from an external source to a vibrating flow pump within the body. The temperature rise of the internal rectifying circuit has been reduced by as much as 30 % to 50 % by employing synchronous rectifiers rather than Schottky diodes. In addition, we have investigated a method for controlling the vibrating flow pump(VFP). This pump would be a constituent part of a totally implantable artificial heart. Also, the use and current limitation of an implanted rechargeable battery for emergency use is discussed.

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Transcutaneous DC-DC converter for totally implantable artificial heart using synchronous rectifier

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