Sa1956 EFFECTIVENESS AND SAFETY OF ENDOSCOPIC SUBMUCOSAL DISSECTION USING THE BALL-TIP BIPOLARCURRENT NEEDLE KNIFE WITH WATER-JET FUNCTION (JET B-KNIFE) FOR THE TREATMENT OF COLORECTAL TUMORS

ESD is a technically difficult and time-consuming procedure for the treatment of large colorectal tumors. In Japan, Ball-Tip Bipolar Current Needle Knife (BB-knife) has been used as a device for safe treatment in ESD by minimizing the damage in deeper tissues of colorectal neoplasms. In May 2012, a BB-knife combined with Water-Jet function (Jet B-knife) was newly developed.