Title :
Development of three-dimensional position sensor for the digestive tract
Author :
Nagaoka, Takashi ; Uchiyama, Akihiko
Author_Institution :
Major in Integrative Bioscience & Biomed. Eng., Waseda Univ., Japan
Abstract :
Video capsule endoscopes are partly applied to clinical use. However, measurement technologies of capsule position in the digestive tract are not established yet. Therefore, the purpose of this study is to develop three-dimensional position sensor which can measure capsule position in the digestive tract. Three coils are arranged perpendicular in the capsule. The sensor generates electromotive force induced by magnetic field generator placed outside of a living body. By measuring induced electromotive force, we can calculate the distance between the sensor and the magnetic field generator. Although wireless is an ideal method for position measurements of capsule endoscope, this sensor is connected to computer through a thin cable because of electric power requirement.
Keywords :
biomagnetism; biomedical measurement; biomedical transducers; endoscopes; position measurement; biomedical telemetry; capsule position; digestive system; digestive tract; induced electromotive force; magnetic field generator; position measurements; three-dimensional position sensor; video capsule endoscopes; Biomedical measurements; Biosensors; Coils; Digestive system; Endoscopes; Force measurement; Force sensors; Magnetic field measurement; Magnetic sensors; Position measurement;
Conference_Titel :
Biomedical Engineering, 2003. IEEE EMBS Asian-Pacific Conference on
Print_ISBN :
0-7803-7943-8
DOI :
10.1109/APBME.2003.1302686
