Title :
Endoradiosonde needs micro machine technology
Author :
Uchiyama, Akihiko
Author_Institution :
Sch. of Sci. & Eng., Waseda Univ., Tokyo, Japan
Abstract :
Endoradiosondes or radio pills are tiny transmitters which can be swallowed to monitor parameters such as pH in the stomach. These devices were developed in the 1950´s. However, numbers of electronic circuits were limited at that time, because no IC and micro-sensors existed. The sondes are still useful to measure various parameters in the gastric tract in a noninvasive way. Micro technology will be helpful to improve functions of the sondes
Keywords :
biocontrol; biomedical telemetry; biosensors; microactuators; microsensors; pH measurement; patient monitoring; radiosondes; radiotelemetry; active type; controller; drug delivery; echo capsules; endoradiosondes; gastric tract; micromachine technology; pH electrodes; pH monitoring; passive type; radio pills; sampling actuator; sampling sonde; stomach parameters monitoring; tiny transmitter; tracking; Batteries; Circuits; Condition monitoring; Endoscopes; Oscillators; Radio frequency; Receiving antennas; Stomach; Temperature sensors; Testing;
Conference_Titel :
Micro Machine and Human Science, 1995. MHS '95., Proceedings of the Sixth International Symposium on
Conference_Location :
Nagoya
Print_ISBN :
0-7803-2676-8
DOI :
10.1109/MHS.1995.494214
