虛擬內視鏡介面元件之研發設計

本文係醫療模擬教學系統之虛擬支氣管內視鏡介面元件之研發設計。國人每年接受內視鏡檢查人數眾多，因此一套虛擬內視鏡模擬系統的應用，可讓年輕無經驗之醫生在實際檢查病人之前，能熟悉內視鏡之操作技術，對提升醫療品質與病患安全性將有重大貢獻。擬開發的介面元件其設計概念係依醫生對病患內視鏡檢查之實際操作情形來設計，硬體設備包含機構設計與電路控制兩大部分。機構設計方面，含虛擬支氣管鏡及喉部介面之機構。虛擬支氣管鏡之外型設計依實際之支氣管內視鏡尺寸設計其相仿外型，喉部介面之機構設計為模擬軟管進入支氣管之狀態，開發之各機構元件使用CNC工具機開發成品原型。電路控制方面，以單晶片作為微控制器，包含微控制器之程式開發，PC端之人機介面程式開發等。滑動與旋轉機構之感測器採用旋轉電位器及編碼器。照相、噴水系統及深門部位之感測器採用觸摸開關，電磁閥則應用在力回饋裝置。最後將所開發之機構與電路整合，以串列通訊傳輸，配合廠商開發之虛擬實鏡軟體達到虛擬支氣管內視鏡模擬效果。

關鍵字

虛擬內視鏡；介面元件；微控制器

並列摘要

This paper presents design of interface devices used in a virtual endoscopic system for simulating bronchus inspection. In Taiwan many patients have been undergone endoscopic procedures each year. A virtual reality simulation system of endoscope is thus needed for training young and inexperienced interns so as to be familiarized with the endoscopic system before being a real practitioner. Such an endoscopic simulation system may improve significantly the medical procedure quality and patient safety. Interface devices used in this virtual endoscopic system are to be designed based on realistic operation conditions, and are composed of two parts, namely, mechanisms and associated electric circuits. In the mechanism design, a mock bronchus endoscope and a throat interface are designed. The mock bronchus endoscope has similar shape and size as the real bronchus endoscope while the throat interface is simulating the state of hose into the bronchus. The designed mechanical devices are then manufactured using CNC machine tool. In the electric circuit design, a microchip is used as a microprocessor control unit, in which programming including man-machine interface are coded. The rotary potentiometers and encoders for measuring respective rotational and translation motions are used. Three switch buttons for picture taking, water spraying, and larynx position opening are also included, in addition to the usage of electromagnetic valve for force feedback. Finally, all signals from these various sensors are sent to a computer via the series port for virtual reality simulation of endoscopic system.

並列關鍵字

Virtual Endoscope ； Interface Device ； Microprocessor Control Unit

參考文獻

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[9] Robert G. Gillio, "Virtual Surgery System Instrument, "U.S Patent 5,704,791, 1998.

[10] David Alexander, J. Michael Brown, Eric Cabahug, Philip J. Churchill, Robert F. Cohen, Ben Feldman and Gregory L. Merril, "Interface Device and Method for Interfacing Instruments to Medical Procedure Simulation Systems," U.S Patent 2004/0048230, 2004.

國際替代計量

虛擬內視鏡介面元件之研發設計

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