Lowenstein Medical LM150TD, Instructions For Use Manual, Page: 13 / 40

4 Preparation and operation
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4.2.1 Connecting leakage circuit
1. Push the inspiration tube onto the device outlet port.
2. Connect the patient interface (e.g., breathing mask) to
the circuit (see instructions for use for the patient/
ventilator interface).
4.2.2 Connecting single circuit with
valve
1. Push the inspiration tube onto the device outlet port.
2. Push the pressure measuring tube onto the inlet port for
the pressure measuring tube .
3. Push the valve control tube onto the inlet port for the
valve control tube .
4. Connect the patient interface (e.g., breathing mask) to
the circuit (see instructions for use for the patient
interface).
4.2.3 Connecting double circuit
1. Push the inspiration tube 1 onto the device outlet port.
2. Push the expiration tube 3 onto the device inlet port.
3. Push the pressure measuring tube 2 onto the inlet port
for the pressure measuring tube .
4. Connect patient interface (e.g., breathing mask) to Y-
piece of the circuit (see instructions for use for the
patient interface).
4.2.4 Connecting circuit for HFT mode
1. Push inspiration tube (short) 1 onto the device outlet
port.
2. Push the other end of the inspiration tube (short) 1 onto
the inlet port of the humidifier chamber 4 marked In .
3. Push the inspiration tube (long) 3 onto the outlet port of
the humidifier chamber 4 marked Out .
4. Connect High Flow interface 2 to the inspiration tube
(long) 3 .
5. If necessary, connect the tube heater and temperature
probe to the inspiration tube (long) 3 (see instructions
for use for the external humidifier).
Risk of injury from incorrectly routed circuits and
cables!
Incorrectly routed circuits or cables may injure the patient.

Do not route circuits and cables along the neck.

Do not crush circuits and cables.
Risk of injury if patient valve is covered!
If the patient valve is covered, exhaled air can no longer be
routed away and the patient will be put at risk.

Always keep the patient valve free.
P
As an alternative to the leakage circuit, it is also
possible to use the single circuit with valve or the
double circuit in HFT mode.
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