Abstract: A control/display assembly for controlling and visually displaying operating conditions/functions of an associated apparatus, e.g., an anesthesia machine. The control/display assembly comprises a panel, e.g., screen, which is arranged to be manually moved and oriented with respect to the apparatus for the user's convenience and a pistol grip having a trigger and a rotary selector member mounted thereon. The pistol grip is arranged to be readily held in the hand of the user to move the panel to the desired position and/or orientation and to hold it stationary while the selector member and trigger are operated. The rotary selector is arranged to be rotated by the thumb of the user to move a cursor on the screen to a desired display/function. The trigger is arranged to be depressed by the user's finger to select a desired display/function.

Abstract: An interlock system for use with anesthesia equipment or other apparatus for monitoring a person's arterial blood pressure and the level of oxygen saturation in the person's blood and for providing respective blood pressure and oxygen saturation signals indicative thereof. The apparatus also comprises inflatable cuff means for disposition about the upper arm of the person to provide the blood pressure signal and a probe for securement on the finger of the person to provide the oxygen saturation signal. The apparatus further comprises alarm means coupled to the cuff means and to the probe means for providing a blood pressure alarm signal in the event that the monitored blood pressure signal deviates from a predetermined value and for providing an oxygen saturation signal in the event that the value of the monitored oxygen saturation signal deviates from a predetermined value.