Document Type

Conference Proceeding

Publisher

Institute of Electrical and Electronic Engineers

Faculty

Computing, Health and Science

School

School of Engineering (SOE)/Centre for Communications Engineering Research

RAS ID

10541

Comments

This article was originally published as: Wild, G., & Hinckley, S. (2010). Wireless Acoustic Communications and Power Supply for In-vivo Biomedical Devices. Proceedings of IEEE International Ultrasonics Symposium. (pp. 4p.). San Diego, California, USA. Institute of Electrical and Electronic Engineers. Original article available here

© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Abstract

Pacemakers are common biomedical devices used in the treatment of specific cardiovascular problems. Current research in biomedical engineering is investigating the use of so called brain pacemakers to regulate conditions such as Parkinson's and other neurological conditions. In this paper, we demonstrate the principle of acoustic communications and power harvesting, in vivo. The signals are intended to be used for fixed in vivo biomedical devices, such as pacemakers, were wired and wireless RF communications cannot be used. Results show the performance of the communications channel. The frequency response, transfer function and transient response (at resonance) of the communications channel were measured. Successful communication was achieved through the communications channel using phase shift keying. A data rate of 40kbps could be achieved. Preliminary results harvesting these acoustic signals to recharge the in vivo biomedical devices give a maximum AC power of 1.12mW.

DOI

10.1109/ULTSYM.2010.5936017

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Link to publisher version (DOI)

10.1109/ULTSYM.2010.5936017