Abstract
Laparoscopic surgery is a difficult surgical procedure as compared with open operation. Therefore, training is necessary for surgeons to perform laparoscopic surgery. In this paper, a training system in which trainees can train a process by themselves that makes a forceps arrive at the target position during ligation based on the evaluation results of hands movement and an operation time, is proposed. First, an acceleration of the forceps is measured by 9-axis sensors attached to the forceps and frequency analysis is performed to the measured acceleration. When the spectrum of the trainee's acceleration in low frequency band is larger than the threshold value determined from pre-measured spectrum of the skilled surgeon's acceleration, the hands movement is regarded as superfluous. Second, an operation time of the trainee's forceps operation which makes the forceps arrive at the target position during ligation is compared with that of the skilled surgeon. Finally, the evaluation results of trainee's hands movement and operation time in comparison with those of the skilled surgeon are displayed on the monitor screen.
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