Generally the equipment used for colonoscopy is not disposable, it is repeatedly sterilized for use, but the sterilization process is very strict and there is no cross-infection.
Before the examinee undergoes colonoscopy, the colonoscopy equipment are fully sterilized with disinfectant solution, and regular bacterial cultures are required to determine the cleanliness level in order to reduce the occurrence of cross-infection and disease transmission.
The use of colonoscopy equipment is repeated, and although it is not disposable, the sterilization process is very strict, and after use it will be sent to a special department for treatment and sterilization.
If you need to undergo colonoscopy, it is best to do so in a regular public hospital and follow the advice of a medical professional.