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A Novel Piezoelectric PVDF Film-Based Physiological Sensing Belt for a Complementary Respiration and Heartbeat Monitoring System

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Authors
Kim, Kap Jin; Chang, You Min; Yoon, Sun; Kim, Hyun Jeong
Issue Date
2009
Publisher
Taylor & Francis
Citation
Integrated Ferroelectrics 107,53–68(2009)
Keywords
PVDF filmpiezoelectric sensorrespiration measurementnon-invasive pulse wave velocity measurementpatient monitoring
Abstract
Human heartbeat and respiration signals were measured from a DAQ board interfaced with a homemade voltage-amplifier with specific frequency filtering function using an elastic textile belt imbedded with a poled-PVDF film, which is designated as a physiological sensing belt (PSB), as a piezoelectric sensor and analyzed. PSB sensor systems can be easily tied on the chest, abdomen, head, wrist, or ankle for comfortable fit. The sensitivity of the imbedded PVDF film sensor is highly dependent on the thickness of coated silicon rubber layer on both sides of the PVDF film. Both respiration and heartbeat signals could be isolated from the mixture signal measured from the chest and abdomen during respiration and pulse wave velocity could be calculated using time delay obtained from waveforms measured simultaneously at the two different body positions. Finally we found the feasibility of applying the PSB as a complementary respiration monitoring system to the traditional anesthesia activities or other types of patient respiratory monitoring such as polysomnography and telemedicine
ISSN
1058-4587
Language
English
URI
http://hdl.handle.net/10371/74348
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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