M.DHANASREE1,a , S.JAYALAXMI2,b , R.KARTHIKA3,c, T.THEIVANAI4,d
110E110,III BE EEE,PSG COLLEGE OF TECHNOLOGY,COIMBATORE.
210E119,III BE EEE,PSG COLLEGE OF TECHNOLOGY,COIMBATORE.
310E120,III BE EEE,PSG COLLEGE OF TECHNOLOGY,COIMBATORE.
410E161,III BE EEE,PSG COLLEGE OF TECHNOLOGY,COIMBATORE. adhanasree.murugan@gmail.com, 8973394727 bjamianu92@gmail.com, 9442980629 cjankarthee@gmail.com , 9976356737 dtheivasubash@gmail.com ,9940992506
Abstract:
A power supply system using a transcutaneous transformer to power an artificial heart through intact skin is presented in this paper. With the number of cardiac patients increasing dramatically each year, the potential for development of implantable circulatory assist devices is remarkable. Such circulatory assist devices consist of totally artificial hearts and ventricular assist devices. In order to realize both high-voltage gain and minimum circulating current, compensation of leakage inductances on both sides of a transcutaneous transformer is proposed. A frequency region which realizes the robustness against coupling coefficient and load variation is identified. In this region, the converter has inherent advantages such as zero voltage switching (ZVS) or zero-current switching (ZCS) of the switches, high-voltage gain, minimum circulating current and high efficiency.
Keywords: Artificial heart—Transcutaneous energy transmission—Magnetic field immunity of the system.
Introduction:
With the rapid development of life science and bio-engineering, the research of implanted medical device, especially the totally artificial heart (TAH), has made great progress, and the TAH with the character of miniaturization, durability and low-resistance, might be used as widely as the artificial pacemaker. With the development and improvement of this technology, non-invasion and low-risk treatment in medical field will be
References: 1. T. Yamamoto, K. Koshiji, K. Tsukahara, et al., “An externally-coupled transcutaneous energy transmission system for totally implantable artificial hearts-detection of abnormal coupling caused by misalignment and air gap in the ferrite core junction of the transcutaneous transformer, “Transaction of Japanese Society for Medical and Biological Engineering, vol. 43, no. 2, pp. 261–267, 2005. 2. T. Yamamoto, K. Koshiji, Y. Nawa, et al., “Transcutaneous energy transmission system for a totally-implantable artificial heart in case using external battery,” in Proceedings of the World Congress on Medical Physics and Biomedical Engineering, pp. 3026–3029, 2006.