Title :
Textile sensor for monitoring vital signs
Author :
Gagarin, Ruthsenne ; Gui Chao Huang ; Rabbi, Ahmed ; Iskander, Magdy F.
Author_Institution :
Hawaii Center for Adv. Commun. (HCAC), Univ. of Hawaii, Honolulu, HI, USA
Abstract :
In this paper, we describe the development of a textile-based design of the microwave coupler for vital signs monitoring and measuring changes in lung water contents. We also describe preliminary results from human clinical study using the developed textile coupler. Benchmarking results using an FDA approved medical device, Propaq LT and a blood pressure cuff, have shown the feasibility of accurately detecting the heartbeat and respiration rates as well as stroke volume from a single microwave measurement. Some of the design and implementation issues such as the coaxial feed and termination of the microwave sensor, contact with human skin issues, as well as the DSP algorithm for extracting the vital signs are discussed. Comparative results between reflection (single coupler) vs. transmission (two sensors), are also presented and discussed.
Keywords :
benchmark testing; biomedical equipment; biomedical imaging; blood; blood pressure measurement; lung; medical signal processing; microwave detectors; microwave imaging; microwave measurement; patient monitoring; pneumodynamics; skin; DSP algorithm; FDA approved medical device; Propaq LT; benchmarking; blood pressure cuff; coaxial feed; heartbeat; human clinical study; human skin; lung water contents; microwave coupler; microwave sensor; respiration rates; single coupler; single microwave measurement; stroke volume; textile coupler; textile sensor; textile-based design development; vital sign monitoring; Biomedical measurement; Heart rate; Microwave measurement; Microwave theory and techniques; Monitoring; Yarn;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904810