Abstract
Recently, the need of colonoscopy is increasing because of the rise of colonic disorder including cancer of the colon. However, current colonoscopy depends on doctor's skill strongly. Therefore, a large intestine endoscope that does not depend on the technique of doctor with high safety is required. In this research, we aim at development of the device that changes own stiffness by air pressure and applying it to the large intestine endoscope that is possible to be inserted into the colon safety without techniques of doctors. This device consists of fiber-reinforced silicone rubber and is able to change the stiffness by air pressure. In this report, we increased reinforced fibers and introduced new drive system which used negative pressure by the improvement of the device. And we developed the prototype of the endoscope. We verified the effectiveness by insertion experiments in U-shaped route.
