Background: Currently, there are about twenty percent of the subjects who feel pain and
become uncomfortable while they are in the middle of the process of bowel disease examination by
colonoscopy. Within the examination, the attending physician needs the assistance of nurses to complete
the operation, which is extremely inconvenient. And there is still the chance of being hurt or infected
by corrosive intestinal juice. Therefore, how to improve the efficiency of diagnosis, ensure the
safety of operation, and reduce the pain of patients are the current research hotspots in the field of
Objective: The study aimed to provide an overview of the existing colonoscopy robots and introduce
their classification and characteristics.
Methods: This paper reviews various productions and patents related to the colonoscopy robot. The
structural characteristics, differences and applications of the typical colonoscopy robot are also introduced.
Results: The auxiliary colonoscopy robot and the active flexible colonoscopy robot were compared and
analyzed, and the typical characteristics were concluded. The main problems in colonoscopy robot’s
development were analyzed, and the development trend is foreseen. The current and future research
works on the productions and patents on colonoscopy robots are discussed.
Conclusion: Colonoscopy robot is helpful for reducing the doctor’s efforts while performing labor operation.
It gives a more clear vision and offers an excellent interactive interface to make man-machine
conversation easy. With the continuous improvement of technology, especially in the field of artificial
intelligence and imaging processing technology, colonoscopy robot has been found to be more stable,
comfortable, humanized, intelligent and secure.