Philips 1146562, User Manual, Page: 19 / 64

This chapter describes the therapy modes and features available on the device.
2.1 Device therapy modes
Therapy Mode Description
CPAP Continuous Positive Airway Pressure; CPAP maintains a constant level of
pressure throughout the breathing cycle.
S Spontaneous Pressure Support; A therapy mode where breaths are
patient-triggered and patient-cycled. The device triggers to IPAP
(Inspiratory Positive Airway Pressure) in response to spontaneous
inspiratory effort and cycles to EPAP (Expiratory Positive Airway
Pressure) during exhalation. The device also cycles a patient-triggered
breath if no patient exhalation effort is detected for 3 seconds. The level
of Pressure Support delivered is determined by the difference between
the IPAP and EPAP settings (PS = IPAP - EPAP)
S/T Spontaneous/Timed Pressure Support; A therapy mode where each
breath is patient-triggered and patient-cycled or machine-triggered and
machine-cycled. S/T mode is similar to S mode, except that the device
also will enforce a set minimum breath rate by, if necessary, providing
machine (time) triggered breaths. For these breaths, the inspiratory time
is also a set value.
PC Pressure Control Pressure Support; A therapy mode where each breath is
patient or machine-triggered and machine-cycled. PC mode is similar to
S/T mode, except that all breaths are machine-cycled. This is a pressure-
limited, machine or patient-triggered, time-cycled mode. The cycle time
is determined by the Inspiratory Time setting.
2.2 Triggering
Auto-Trak is a combination of multiple triggering algorithms. The parameters of the algorithms are
automatically set to synchronize the therapy with a variety of patients.
2. Therapy modes