Title :
Simultaneous detection of blood vessel pulsation waves at temple and finger tip using CoSiB amorphous wire CMOS IC Si sensor
Author :
Dezaki, T. ; Muramatsu, K. ; Shen, L.P. ; Cai, C.M. ; Mohri, K. ; Mori, M.
Author_Institution :
Graduate Sch. Electr. Eng., Nagoya Univ., Japan
Abstract :
Summary form only given. Detection of blood vessel pulsation (BVP) waves are important for estimation of circulatory system functions and diagnosis for circulatory organs. We have developed a highly sensitive stress sensor having a 4000 gauge factor named SI sensor using a 20 /spl mu/m diameter CoSiB amorphous wire and CMOS IC multivibrator utilizing the stress-impedance effect and applied to detect the finger-tip BVP waves in which effects of smoking and drinking are clearly detected. In this paper, a simultaneous detection of BVP waves at the temple and the finger-tip of a healthy subject using a pair of SI sensors for investigation of their relation on sleeping and awaking in which the temple BVP precedes except during deep sleep.
Keywords :
CMOS integrated circuits; amorphous magnetic materials; biomedical electronics; cobalt compounds; haemodynamics; multivibrators; patient diagnosis; sleep; 20 micron; CoSiB; awaking; blood vessel pulsation waves detection; circulatory organs diagnosis; circulatory system functions estimation; deep sleep; drinking effects; healthy subject; healthy subject finger tip; highly sensitive stress sensor; sleeping; smoking effects; stress-impedance effect; Amorphous materials; Blood vessels; Fingers; Gas detectors; Heating; Magnetic materials; Micromagnetics; Needles; Neoplasms; Temperature;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1001438
