Middle line laparotomy. Skin incision. Incision of abdominal wall in linea alba. Finishing the laparotomy on fingers with scissors. Making an orifice for catheter. Blunt perforation of muscular layer. Dilatating the orifice and pulling the catheter through. Preparation of circular stitch in stomach wall. Insertion of catheter into the stomach. Catheter balloon inflation. Circular stitch tightening. Catheter tunelization. Fixation of the stomach to the abdominal wall. Application of liquid into the stomach and suction of stomach content. Fixation of catheter to skin.