Patients under surgical operations suffer heavy damages by surgical knifes, drugs, bacterias, anesthetic gases et al. Patients should be protected by anesthesiologist to perform surgical operations to be safe and smooth.
　Prof. Takahashi emphasizes the need and importance of peri-operative defense medicine.
　For this purpose, a computer simulated patient is used for training of medical students. Students can experience realitic methods for risk management under surgical operations by use of this fullscale simulater(digital patient).