The disinfectant solution for fiberoptic gastroscope immersion can be a 2% glutaraldehyde solution, or an o-phthalaldehyde solution.
Glutaraldehyde solution is a disinfectant that can be used to sterilize non-heat resistant medical devices as well as precision medical devices.
Fiber gastroscope is a gastroscope made of light-conducting glass fiber bundles with an endoscope at the front end, which extends from the mouth into the esophagus, stomach, and duodenum of the examinee and comes into contact with the skin, tissues, and mucous membranes of the human body.
Therefore, sterilization of the gastroscope is particularly important, often using the immersion method. In the case of disinfection, this means immersion in glutaraldehyde solution for about half an hour, while if sterilization is required, immersion for about 10 hours is needed. Generally 2% glutaraldehyde solution is alkaline and becomes unstable and tends to synthesize polymers, so glutaraldehyde solution should not be used for more than 2 weeks.
Additionally phthalaldehyde solution can be used to soak gastroscopes. Using this solution to soak gastroscopes tends to save time, and soaking for more than 5 minutes is generally sufficient to provide a high level of sterilization of gastroscopes.