초록 ▼

An anesthesia system is disclosed that prolongs the lifetime of an oxygen fuel cell be used to detect the concentration of oxygen in that anesthesia system. The system determines and provides a signal indicating the end of any particular operation using the anesthesia system and that signal is used

An anesthesia system is disclosed that prolongs the lifetime of an oxygen fuel cell be used to detect the concentration of oxygen in that anesthesia system. The system determines and provides a signal indicating the end of any particular operation using the anesthesia system and that signal is used to cut off all gas supplies with the exception of the fresh air supply which is then allowed to pass through the system to wash the various lines, including the conduit having the oxygen gas fuel cell thus preventing the typically high concentrations of oxygen used in a operation from remaining in the oxygen fuel cell for an unnecessary period of time. Furthermore, the gases in the anesthesia machine are eliminated along with their deleterious effects and replaced by fresh air from the normal supply of fresh air to the system.

대표청구항 ▼

An anesthesia system for providing anesthesia to a patient, the combination comprising; a patient circuit adapted to be connected to the patient, said patient circuit introducing gases into the patient and for receiving gases exhaled by the patient, means to introduce a plurality of gases, including

An anesthesia system for providing anesthesia to a patient, the combination comprising; a patient circuit adapted to be connected to the patient, said patient circuit introducing gases into the patient and for receiving gases exhaled by the patient, means to introduce a plurality of gases, including at least fresh air and oxygen, at a controllable flow into the patient circuit, an oxygen fuel cell in said patient circuit monitoring the concentration of oxygen in the patient circuit and generating a signal indicative of the oxygen concentration, means to generate a signal indicating the termination of the use of the anesthesia system on the patient; and means responsive to said signal to provide a flow of only said fresh air to wash said oxygen fuel cell.