18
BiPhasic + LBR/apnea mode
This mode is the application of BiPhasic therapy with low
breath rate detection via the respiratory abdominal sensor
and transducer interface. For SiPAP Plus, the LBR setting is
determined by the TLBR setting from 10 to 30 seconds. For
SiPAP Comprehensive, the Apnea setting is determined by
T-apnea setting from 10 to 30 seconds.
SiPAP Comprehensive BiPhasic tr* mode
This mode utilizes the respiratory abdominal sensor and
transducer interface to synchronize pressure high breaths
with the infant’s respiratory efforts. It allows patient-
triggered pressure assists with breath rate monitoring
enabled, adjustable apnea time interval, apnea alarm and
adjustable apnea backup rate. The upper level pressure
delivers based on operator set T-high and PHigh flow rate
settings. The maximum pressure setting is 15 cmH
2
O. If the
respiratory efforts are not detected, the infant receives the
low CPAP setting and the apnea alarm initiates the delivery
of the set backup rate.
BiPhasic tr parameters:
• Baseline CPAP (set by low pressure flowmeter)
• Peak inspiratory pressure (PIP) (set by high
pressure flowmeter)
• T-high
• Backup respiratory rate
• Apnea time
• Oxygen percentage
Initial settings: Initial settings should be tailored to the
infant’s respiratory condition.
• Baseline CPAP at clinical indicated level (4 to 6 cmH
2
O)
• PIP: 2 to 3 cmH
2
O above set CPAP level. Set by the
PHigh flowmeter.
• T-high: ≤ 0.3
• Rate (Rb): Set rate is active only if Tapnea (sec) threshold
is surpassed. Generally, set it close to the infant’s own
respiratory rate.
• Apnea time (tapnea): 10 to 30 seconds. The apnea
alarm triggers when no breaths are detected within
the selected apnea timeout.
Timed BiPhasic breaths are given at the set backup rate, PHigh
and T-high. If the infant triggers within the next time-out
period, the alarm silences and triggered-BiPhasic resumes.
If no breaths are detected after the next apnea timeout,
the audible alarm resumes until the operator intervenes.
*BiPhasic tr mode available in comprehensive
configurations only. Not available in the U.S.
10
Ti = 0.2 s
Time (s)
9
8
7
6
5
5
4
4
3
3
2
2
1
0
01
Pressure (cmH
2
O)
cmH
2
O
12
16
8
4
0
0246810
CPAP pressure
Volume change (ml/kg)
5.5 ml/kg
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