Xenomatic Function Modes

ROOM AIR - Patient inhales from and exhales into the room through the XENAMATIC-N plumbing system.

REBREATHE - Patient breathes in the closed loop, coming to equilibrium with the Xenon stored in the system. REBREATHE starts automatically at end tidal volume so that the first breath is always an inhalation. While in REBREATHE, CO2 is removed from the closed loop. As oxygen is consumed, it is automatically replaced.

WASHOUT - Patient inhales room air through the XENAMATIC-N and exhales into the expandable interface. The Xenon Trap pump is activated and draws the air and Xenon mixture from the interface into the charcoal trap.

END STUDY - Patient is removed and the Xenon Trap pump continues to run until a vacuum sensor indicates the expandable interface is empty. The trap pump then shuts off and returns the unit to the ROOM AIR mode.

AUTO FILL - Automatically fills the internal 5 liter breathing bag to approximately 3.5 liters, so that there is always adequate volume for the first inhalation, even for a single breath-equilibrium-washout technique.

FLUSH SYSTEM - Flushes room air through the system into the expandable interface and charcoal trap to clean all radioactivity out of the system.