ecrin-mdr-crcClinical2017Colorectal cancerColorectal CancerInterventionalhttps://newmdr.ecrin.org/Study/2641390Japan2ECRIN MDRCompletedfalseA prospective study of safety and usefulness of a new miniature wide-field camera for laparoscopic colorectal surgery.Interventions: The participation start date is the time of consent to this research, observation start time is the start of observation, and observation end time is the time of the end of surgery. In the case of Pre-observation period: Up to one week from acquisition of consent to laparoscopic surgery Research intervention period: the day when the laparoscopic assisted surgery was performed Post-observation period: 28 days from the day of surgery Primary outcome(s): All adverse events during perioperative time. Study Design: Single arm Non-randomized2017-02-152641390JPRN-UMIN000026168