Intestinal Health Institute We perform patient consultation, gastroscopy, flexible sigmoidoscopy, and colonoscopy at the Institute, in an out-of-hospital setting. We are most interested in colon cancer screening. The Intestinal Health Institute, we ensure that all our equipment is properly sterilized before each use. At the Intestinal Health Institute, specially trained personnel clean all of our colonoscopes and gastroscopes on site. We use an enzymatic presoak and cleaner called Klenzyme. All external and internal channels are cleaned using Klenzyme, special brushes and flushing equipment. more... See more text