Development of a small wireless position and bleeding detection sensor

T. Nagaoka; A. Uchiyama

doi:10.1109/MMB.2005.1548403

Development of a small wireless position and bleeding detection sensor

T. Nagaoka^*, A. Uchiyama

^*Corresponding author for this work

Waseda University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

Medical capsule devices such as video capsule endoscopes are finding increasing use in clinical applications. At present, technologies capable of measuring capsule position and detecting a bleeding in the digestive tract at the same time have not yet been established. The present study aims to develop a small wireless position and bleeding detection sensor. The sensor position are measured by using the phenomenon of mutual induction and Newton's law. Electromotive forces induced in the sensor are modulated to FM signals using an astable multivibrator, and the signals are passed directly through living tissue at low current and then demodulated by detectors on the surface of the body. A prototype sensor was developed and evaluated in vitro. The sensor was capable of accurately measuring capsule position up to 500 (mm) from the primary coils with an accuracy of 5 (mm), and detecting 0.5 cc blood in 500 cc physiological saline.

Original language	English
Title of host publication	2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
Pages	130-131
Number of pages	2
Volume	2005
DOIs	https://doi.org/10.1109/MMB.2005.1548403
Publication status	Published - 2005
Event	2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology - Oahu, HI Duration: 2005 May 12 → 2005 May 15

Other

Other	2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
City	Oahu, HI
Period	05/5/12 → 05/5/15

Keywords

Biomedical telemetry
Bleeding detection
Digestive system
Position measurement

ASJC Scopus subject areas

Engineering(all)

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10.1109/MMB.2005.1548403

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Nagaoka, T & Uchiyama, A 2005, Development of a small wireless position and bleeding detection sensor. in 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology. vol. 2005, 1548403, pp. 130-131, 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology, Oahu, HI, 05/5/12. https://doi.org/10.1109/MMB.2005.1548403

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title = "Development of a small wireless position and bleeding detection sensor",

abstract = "Medical capsule devices such as video capsule endoscopes are finding increasing use in clinical applications. At present, technologies capable of measuring capsule position and detecting a bleeding in the digestive tract at the same time have not yet been established. The present study aims to develop a small wireless position and bleeding detection sensor. The sensor position are measured by using the phenomenon of mutual induction and Newton's law. Electromotive forces induced in the sensor are modulated to FM signals using an astable multivibrator, and the signals are passed directly through living tissue at low current and then demodulated by detectors on the surface of the body. A prototype sensor was developed and evaluated in vitro. The sensor was capable of accurately measuring capsule position up to 500 (mm) from the primary coils with an accuracy of 5 (mm), and detecting 0.5 cc blood in 500 cc physiological saline.",

keywords = "Biomedical telemetry, Bleeding detection, Digestive system, Position measurement",

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AU - Uchiyama, A.

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N2 - Medical capsule devices such as video capsule endoscopes are finding increasing use in clinical applications. At present, technologies capable of measuring capsule position and detecting a bleeding in the digestive tract at the same time have not yet been established. The present study aims to develop a small wireless position and bleeding detection sensor. The sensor position are measured by using the phenomenon of mutual induction and Newton's law. Electromotive forces induced in the sensor are modulated to FM signals using an astable multivibrator, and the signals are passed directly through living tissue at low current and then demodulated by detectors on the surface of the body. A prototype sensor was developed and evaluated in vitro. The sensor was capable of accurately measuring capsule position up to 500 (mm) from the primary coils with an accuracy of 5 (mm), and detecting 0.5 cc blood in 500 cc physiological saline.

AB - Medical capsule devices such as video capsule endoscopes are finding increasing use in clinical applications. At present, technologies capable of measuring capsule position and detecting a bleeding in the digestive tract at the same time have not yet been established. The present study aims to develop a small wireless position and bleeding detection sensor. The sensor position are measured by using the phenomenon of mutual induction and Newton's law. Electromotive forces induced in the sensor are modulated to FM signals using an astable multivibrator, and the signals are passed directly through living tissue at low current and then demodulated by detectors on the surface of the body. A prototype sensor was developed and evaluated in vitro. The sensor was capable of accurately measuring capsule position up to 500 (mm) from the primary coils with an accuracy of 5 (mm), and detecting 0.5 cc blood in 500 cc physiological saline.

KW - Biomedical telemetry

KW - Bleeding detection

KW - Digestive system

KW - Position measurement

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Development of a small wireless position and bleeding detection sensor

Abstract

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Keywords

ASJC Scopus subject areas

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