AGENTS AND N20 DETECTION APPARATUS

摘要

A detector that monitors the presence of halogenated agents and the presence of N20 includes a base to which a filter cannister is removably coupled. The cannister has an input for accepting exhalent from a patient or an anesthesia machine and an outlet for outputting the filtered exhalent as gases to the base. The filtered gases are routed a gas measurement or monitor cell housed in the base. The cell has a halogenated agents sensing system and a N20 sensing system. When the filter material in the filter cannister could no longer filter out the halogenated agents, the agents are passed from the filter to the measuring cell, which would detect the presence of the halogenated agents. An audible alarm sounds when halogenated agents are detected. This tells the user that it is time to replace the filter cannister. If N20 is used, its presence is detected by the N20 sensor in the measuring cell. If N20 is detected, an audible alarm sounds to inform the user that N20 is present and that the user should take appropriate preventative steps.