超越視覺限制之互動式力回饋關節鏡手術數位學習系統; An Interactive Force Feedback Digital Learning Beyond Visual Limitations for the Arthroscopy

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Title:	超越視覺限制之互動式力回饋關節鏡手術數位學習系統;An Interactive Force Feedback Digital Learning Beyond Visual Limitations for the Arthroscopy
Authors:	高嘉隆;Jia-Long Kao
Contributors:	醫務管理學研究所碩士班
Keywords:	虛擬實境;微創手術;數位學習;力回饋;視覺化;Virtual Reality;Minimally Invasive Surgery;E-learning
Date:	2009-06-30
Issue Date:	2009-08-12 16:22:13 (UTC+8)
Abstract:	關節鏡手術訓練較一般開放性手術訓練困難，其主要挑戰在於有限的視角範圍、侷促的器械操作空間以及眼手協調的困難。本研究以發展關節鏡檢查之學習功能為目標，模擬關節鏡手術之各種不同的操作與其所對應之畫面，讓使用者學習關節鏡頭下的解剖構造、認知關節腔內空間方位，並發展力回饋功能，提供使用者觸覺，增進虛擬系統的擬真感。以虛擬實境、電腦繪圖、人機介面等技術建立數位學習功能，利用VB.Net控制虛擬場景，使用力回饋測試平台建立力回饋數據，將力回饋數據透過Phantom Omni機械臂呈現觸碰感受，關節鏡手術的流程與醫學知識亦諮詢有經驗的關節鏡手術醫師。本系統除完成上述之功能，透過VB.Net設計虛擬場景控制介面提供一個友善與方便的人機介面，讓使用者操作，同時達到3D立體模型與2D資料庫之連結，無視覺障礙的設計可以達到由內而外關節鏡解剖知識的需求，視覺輔助視窗的功能協助學習者了解目前器械的位置，資料庫可針對3D模型或是2D資料庫提供使用者搜尋顯示文字與圖片說明，力回饋功能提供使用者於操作模型過程感受觸覺，增進學習效果。 The training of minimally invasive surgery is more difficult than traditional surgery. There are three major challenges in performing arthroscopic surgery. First, the physicians’ vision is limited. Second, physicians have to handle surgery equipment in a cramped space during the process of surgery. Last, hand-eye coordination is a difficult issue to every physicianThe objective of this study is to develop a virtual reality learning system for arthroscopy surgery. This learning system can simulate different operations of arthroscopy and the display corresponding images of operation. This system allows users to understand the structure of joints’ anatomy under arthroscopy and realize the spatial orientation of joint capsule.This study develops a learning system using virtual reality, computer graphics, and man-machine interface techniques. The control panel of virtual space is created by VB.Net programming. We construct the force feedback data using a haptic platform. This system performs the feelings of force feedback utilizing a robotic arm. We consult with experienced physicians regarding the process of arthroscopic surgery and the medical domain knowledge There are more functions designed in this system other than the above ones. The control panel of virtual space developed by VB.Net provides a user-friendly and convenient human-machine interface for trainees. Users can search corresponding tissues in 2D database by clicking the 3D model in the virtual space when they operate the simulation system.The function of learning beyond visualization meets the need of inside-out arthroscopy knowledge. The function of auxiliary window helps users to realize the position of surgery equipment. The anatomic database provides 2D images, names, and descriptions of organs. In addition, the database can also automatically display the corresponding 2D images and information of organs in the 3D virtual space. The force feedback gives feelings of collisions or contacts during users operating the simulation system. This system can increase the learning effectiveness in performance of arthroscopy surgery.
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