TY - JOUR
T1 - Fabrication of the wireless systems for controlling movements of the electrical stimulus capsule in the small intestines
AU - Moon, Yeonkwan
AU - Lee, Jyunghyun
AU - Park, Heejoon
AU - Lee, Jugab
AU - Ryu, Jaejong
AU - Woo, Sanghyo
AU - Kim, Minkyu
AU - Won, Chulho
AU - Kim, Taewan
AU - Cho, Jinho
AU - Choi, Hyunchul
PY - 2007/2
Y1 - 2007/2
N2 - Diseases of the gastro-intestinal tract are becoming more prevalent. New techniques and devices, such as the wireless capsule endoscope and the telemetry capsule, that are able to measure the various signals of the digestive organs (temperature, pH, and pressure), have been developed for the observation of the digestive organs. In these capsule devices, there are no methods of moving and grasping them. In order to make a swift diagnosis and to give proper medication, it is necessary to control the moving speed of the capsule. This paper presents a wireless system for the control of movements of an electrical stimulus capsule. This includes an electrical stimulus capsule which can be swallowed and an external transmitting control system. A receiver, a receiving antenna (small multi-loop), a transmitter, and a transmitting antenna (monopole) were designed and fabricated taking into consideration the MPE, power consumption, system size, signal-to-noise ratio and the modulation method. The wireless system, which was designed and implemented for the control of movements of the electrical stimulus capsule, was verified by in-vitro experiments which were performed on the small intestines of a pig. As a result, we found that when the small intestines are contracted by electrical stimuli, the capsule can move to the opposite direction, which means that the capsule can go up or down in the small intestines.
AB - Diseases of the gastro-intestinal tract are becoming more prevalent. New techniques and devices, such as the wireless capsule endoscope and the telemetry capsule, that are able to measure the various signals of the digestive organs (temperature, pH, and pressure), have been developed for the observation of the digestive organs. In these capsule devices, there are no methods of moving and grasping them. In order to make a swift diagnosis and to give proper medication, it is necessary to control the moving speed of the capsule. This paper presents a wireless system for the control of movements of an electrical stimulus capsule. This includes an electrical stimulus capsule which can be swallowed and an external transmitting control system. A receiver, a receiving antenna (small multi-loop), a transmitter, and a transmitting antenna (monopole) were designed and fabricated taking into consideration the MPE, power consumption, system size, signal-to-noise ratio and the modulation method. The wireless system, which was designed and implemented for the control of movements of the electrical stimulus capsule, was verified by in-vitro experiments which were performed on the small intestines of a pig. As a result, we found that when the small intestines are contracted by electrical stimuli, the capsule can move to the opposite direction, which means that the capsule can go up or down in the small intestines.
KW - Electrical stimulus capsule
KW - In-vitro experiments
KW - Moving speed
KW - Receiver
KW - Small multi-loop
KW - Transmitter
KW - Wireless capsule endoscope
KW - Wireless system
UR - http://www.scopus.com/inward/record.url?scp=33847152524&partnerID=8YFLogxK
U2 - 10.1093/ietisy/e90-d.2.586
DO - 10.1093/ietisy/e90-d.2.586
M3 - Article
AN - SCOPUS:33847152524
SN - 0916-8532
VL - E90-D
SP - 586
EP - 592
JO - IEICE Transactions on Information and Systems
JF - IEICE Transactions on Information and Systems
IS - 2
ER -