Abstract:Among the medical instruments used in hospitals, buoy-type oxygen inhalers have a large number, and they need to be compulsory verification according to metrological verification regulation JJG 913-2015《Buoy Type Oxygen Inhaler Detection Device》verification regulation Request, every half a year to cycle verification of oxygen inhalator, oxygen inhaler commonly used calibration device is mainly composed of 0.4 on the Richter scale precision pressure gauge (oil) and 1.0 meter and piping, its structure is complex, cumbersome installation, especially not suitable for a large number of frequent periodic verification, and that will take all levels of hospitals and a lot of time and energy metering technology institutions Therefore, this paper designed a buoy type oxygen inhaler detection device, convenient oxygen inhaler periodic verification work.