Development of Variable Stiffness Colonoscope Consisting of Pneumatic Drive Devices

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A colonoscope which can be inserted reliably and safely is required. In this study, variable stiffness device whose stiffness can be controlled was developed, and also a prototype colonoscope consisting of multi variable stiffness devices was manufactured. Using the colonoscope, insertion experiments into the colon phantom were conducted, and it can be inserted into the deepest part of the colon without special techniques.