| Summary: | 碩士 === 國立臺灣大學 === 電機工程學研究所 === 96 === Due to change of Dietary habits and lifestyle of modern people result in various digestive system diseases to arise.Digestive diseases have been already more and more common at the present day.In recent years,the progress in optical engineering and electronic techniques,however,promote the medical equipment to be humanistic development,as capsule endoscope brings good news to the patients who have disease in the digestive system.
Capsule endoscopes now used in gastrointestinal tract are carried through the body only by the peristaltic movement of the stomach and the intestines,and the capsules can not be controlled outside the body. Moreover,the stomach can be regarded as a large space comparing to the capsule endoscope. When making a diagnosis in the stomach, we may need to move the capsule endoscope back and forth around some designated place in the stomach. Lacking of the ability of moving actively, it is still difficult to give us accurate diagnosis by capsule endoscope in the stomach.
Besides,general electronical stomach endoscope examination now often make patients feel unwell and fearful. Accordingly,to resolve the shortcoming given above,we start the research of the body-outside magnetic control theory and experiment with the guidance of Dr. Chih-Wen Liu , Professor of National Taiwan University,and Dr. Gi-Shih Lien, vice Superintendent of Wan-Fang Medical Center.
At first,by applying the theory and technique of magnetic guidance control, capsule endoscope inside human body can be controlled to move,whirl,and yaw by the drawing of magnetism outside body.This elevates the efficiency of the diagnosis especially in the stomach.Then the images of gastrointestinal tract can be taken by the optical device of the capsule endoscope and be transferred to monitor by dedicated driver. Second,we also establish the user interface of the capsule endoscope system. Our goal is to build an easy and low-cost control system that can be used to control the capsule endoscope inside human body more simply,quickly,comfortably,and safely.
In this paper, we will introduce magnetic guidance control theories and methods concerned with the capsule endoscope system.Besides,we will also discuss image capture and processing researches and technologies.Then,we will explan the construction,design concept,and hardware scheme of the system.Finally,we will illustrate the experiment system and equipment,and also analyze the results of experiment to verify the theory proposed in this paper. Further, the performance and usability of whole system will be estimated,and the future work about the magnetic guidance control system of capsule endoscope will be discussed.
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