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Wireless non-contact cardiac and neural monitoring

Published: 05 October 2010 Publication History

Abstract

Ubiquitous physiological monitoring will be a key driving force in the upcoming wireless health revolution. Cardiac and brain signals in the form of ECG and EEG are two critical health indicators that directly benefit from long-term monitoring. Despite advancements in wireless technology and electronics miniaturization, however, the use of wireless home ECG/EEG monitoring is still limited by the inconvenience and discomfort of wet adhesive electrodes.
We have developed a wireless biopotential instrumentation system using non-contact capacitive electrodes that operate without skin contact. The sensors can be embedded within comfortable layers of fabric for unobtrusive use. All of the issues relating to the design of low noise, high performance capacitive sensors are discussed along with full technical details, circuit schematics and construction techniques.
The non-contact electrode has been integrated into both a wearable ECG chest harness as well a EEG headband. We have also designed a compact, battery-powered, wireless data acquisition system to interface with multiple electrodes and monitor patient cardiac and neural signals in real time. Experimental data shows that the non-contact capacitive electrode perform comparable to Ag/AgCl electrodes using our special chest harness and head bands to ensure tight, movement-free electrode positioning.

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cover image ACM Other conferences
WH '10: Wireless Health 2010
October 2010
232 pages
ISBN:9781605589893
DOI:10.1145/1921081
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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  • WLSA: Wireless-Life Sciences Alliance
  • University of California, Los Angeles

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Association for Computing Machinery

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Publication History

Published: 05 October 2010

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Author Tags

  1. ECG
  2. EEG
  3. capacitive sensors
  4. wireless health

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WH '10
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  • WLSA
WH '10: Wireless Health 2010
October 5 - 7, 2010
California, San Diego

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