Specifications

18
2. See Figure 17. Assemble the patient circuit as shown below.
Tubing
Rotating
Connector
Exhalation
Port
Whisper
Swivel II
Proximal
Pressure Line
Assembly
Proximal
Pressure Line
Assembly
Tubing
Disposable CircuitReusable Circuit
Rotating
Connector
Figure 17
Warning: A continuous flow exhalation port (i.e., Whisper Swivel II) is designed to exhaust patient
exhalation from the patient circuit. Continuous flow is required for safe operation. Do Not
Block or Otherwise Try to Seal the Gas Vents on the Exhalation Port.
Chapter 6 Setting Up the BiPAP S/T System
Setting Up the BiPAP S/T System
BiPAP Unit
Outlet Port
Tubing
Main Flow
Bacteria
Filter
(Optional)
BiP
AP S/T
AP S/T
®
Figure 16
1. See Figure 16. Connect one end of the patient tubing to the outlet port on the front of the BiPAP unit.
In situations where risk of contamination between the user and the BiPAP unit is high, a low
resistance, main flow bacteria filter should be placed in-line between the unit and the patient.
Note: If a bacteria filter is used, it must be positioned in the circuit so that it is filtering air directly from
the unit. If a humidifier is also used, the bacteria filter should not be placed in the circuit between
the outlet of the humidifier and patient, because this can cause an increase in filter resistance.
The addition of a low resistance main flow bacteria filter does not affect the trigger
sensitivity of the system. Depending on the degree of resistance imposed by the filter, the pressure
stability (the ability of the unit to maintain the delivered pressure within specified tolerances) may
be affected. The filter must remain clean and dry to minimize circuit resistance. The
main flow bacteria filter should be replaced in accordance with the manufacturer's
specifications and instructions.
The bacteria filter should be in-line when the pressure settings are determined. If a filter is added to
a system already in use, observe the patient to determine whether the pressure settings should be
adjusted to compensate for any pressure drop resulting from the filter.