膠囊內視鏡之磁力控制系統研製

Implementation of the Magnetic Control System for Capsule Endoscopes

徐晴嵐(Chin-Lan Hsu)

指導教授 ： 劉志文

共同指導教授 ： 連吉時(Gi-Shih Lien)

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2007年)

https://doi.org/10.6342/NTU.2007.00772

摘要

現行應用於消化道診察之膠囊內視鏡皆無法由體外控制其運動，而且人體消化道中的胃部對膠囊內視鏡而言是一個相當大的空間，對此部位病徵進行檢查時可能需要多次來回或停駐於某等定位置。因為現行之膠囊內視鏡無法定時定點地觀察，故對於胃部的檢查現行膠囊內視鏡仍無用武之地。
本研究目的為改善上述現象以提高消化道（尤其是在胃部）的診察效率，在國立臺灣大學劉志文教授指導下，建立體外磁場控制相關理論和方法。藉由磁力之牽引來達成膠囊內視鏡移動、轉動及定位等動作，並透過膠囊內視鏡之光學影像模組攝取影像後，經擷取系統傳輸至監控畫面，針對胃內各局部空間做詳細完整之檢查動作。
其次，本系統亦針對控制介面之組成技術進行研究與應用，以期使系統操作人員可以藉由簡便、低成本之體外控制器以及電腦程式介面，對體內之膠囊內視鏡進行操作及監控。
最後藉由整體實驗系統之建構模擬，以及對實驗結果之考察探究，據以進行理論之驗證與系統整體可行度及確實度之評估，並且對系統未來之研究發展方向與目標進行探討。

關鍵字

膠囊內視鏡 ； 旋轉磁場 ； 磁力控制

並列摘要

So far the capsule endoscopes 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 use capsule endoscope to give accurate diagnosis (even treatment) in the stomach.
To resolve the shortcoming given above, our research team start the study of the body-outside magnetic control theory 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 of magnetic control system, we design some experiments to satisfy the requirement of controlling outside and such that the capsule endoscope can be governed to move and rotate inside human body. This elevates the efficiency of the diagnosis (especially in the stomach). And the images of gastrointestinal tract can be taken by 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 body more simply, quickly, and precisely.
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 control system of capsule endoscope will be discussed.

並列關鍵字

Capsule Endoscope ； Rotated Magnetic field ； Magnetic Control

參考文獻

[15] 台灣原相科技股份有限公司網站

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[2] 陳信彰，「內視鏡磁浮影像系統之研製」，國立臺灣大學電機工程學研究所論文，2003年6月

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