We describe about our dental surgical simulator which enable users to simulate dental surgical operation. Our simulator which enables the user to learn dental surgical methods through actual hand and body postures. The proposed system uses a display showing a virtual tooth model and real teeth and gums that are positioned close to the hands of the user, which allows the user to directly manipulate objects with haptic feedback. As a preliminary evaluation, in display system, we measured the deviation between real object image and virtual object image at user's view positions. And we confirmed the capability and the limitation of our system.

Comparison of GPU-based and CPU-based algorithms for determining the minimum distance between a CUSA scalpel and blood vessels 登尾啓史 (正会員) a *，國居貴浩 b ，水篠公範 c a 大阪電気通信大学 総合情報学部 情報学科 b (株)かしなシステム c (株)Embedded Wings

No abstract

No abstract

This study developed support software for liver surgeons; the software can apply potential functions to blood vessels and cancerous tissue and can adjust repulsion and attraction accordingly. Thus, the scalpel can be directly provided with the power to operate on cancerous cells only from a fixed distance, and accidental cutting of blood vessels can be avoided. The direct support provided by this force navigation allows physicians to safely and reliably navigate past blood vessel groups in order to precisely perform excision surgery for liver cancer.