Virtual surgical system in reduction of maxillary fracture

Reduction of maxillary fracture is widely performed in cranial-maxillofacial surgeries, but it requires skilled and experienced surgeons. A virtual surgery system aiming on this kind of surgery is designed. CHAI 3D is used for rendering the haptic feedback. A multi-proxy algorithm is proposed to prevent the handle of operation tool stabbing into the virtual models and causing misjudgment. With the Geomagic haptic device, operators can manipulate one virtual model in the 3D virtual environment. This system can be used to train medical students or for preoperative planning of complicated surgeries.