Patent ID: 7495355

Claim:
A system for providing auxiliary power to an integrated anesthesia delivery and patient monitoring system, the system comprising: (a) an anesthesia machine, the anesthesia machine including a battery and a first solid state switch, wherein the first solid state switch is in a normally closed position and the battery is coupled with a first terminal of the first solid state switch; (b) a patient monitoring device, the patient monitoring device including a second solid state switch, wherein the second solid state switch is in a normally open position; and (c) a DC power connection coupling a second terminal of the first solid state switch of the anesthesia device and the second solid state switch of the patient monitoring device, wherein when an AC mains is unavailable to the patient monitoring device, the second solid state switch closes, such that the battery provides power to the patient monitoring device through the first solid state switch, the second solid state switch and the DC power connection.