A Metal Detector for Clip Location Tracking of Stomach and Colon Cancer during Laparoscopic Surgery

In laparoscopic surgery for colorectal and gastric cancer, it is difficult to locate the tumor in cavity excision. Tumors colon or stomach are blocked by mucous membranes; thus, view from obscured. Therefore, determine location of tumor, a marker can be installed around found using sensor. Until now, most clip-detectors that have been developed detect tumors either cancer. The research on development detector both insufficient. Most detectors determination devised magnet connecting wire clip. this method, position moves along length wire. exact tumor. Based study designs clip maker sensing element directly connected. ferrite coil generate magnetic field induced an eddy current metal (clip), designed Colpitts oscillator induce field. After installing prepared at location, used clip, accordingly, identified detector. To test performance detector, we conducted animal experiments. course experiment, four clips were stomach, succeeded detecting all clips. Because clip-detector during surgery, endoscope must used. predicted demand endoscopic medical industry will increase because clip-detector.