A ventilation sound detection system includes an audible display that emits
a series of sounds based upon information provided by a ventilator. In
particular, there are two different sound patterns emitted by the system.
One sound represents inspiration and the other sound represents
expiration. The inspiration sound is enunciated when monitored breathing
pressure crosses a threshold level, thereby communicating to an
anesthesiologist/clinician that a significant pressure has been developed
in the breathing circuit (e.g., a proper inspiration breath has been taken
by the patient). The exhalation sound is enunciated when the rising edge
of a valid CO.sub.2 breath has been returned to the breathing circuit
(e.g., a proper exhalation breath has been made). Accordingly, the system
provides the anesthesiologist/clinician with a new way of verifying that
the patient is being properly ventilated. Therefore, ventilation changes
or problems can be identified quickly and effectively.
