Patient Circuits
(General)
Humidifier
Altitude and
Temperature Range
Other Safety Notices
Supplemental
Monitoring
(Optional)
Remote Alarms
Ventilator Alarms
The Ventilator Alarms section in this addendum replaces the information regarding alarms under "Ventilator Alarms" in
Chapter 3 of the Trilogy manual. This section describes all of the Patient alarms, System alarms, and Informational messages.
Note: Alarm settings are restored automatically after power is interrupted for 30 seconds or less.
Patient Alarms
Check Circuit Alarm
This is a high priority alarm. It occurs when the device detects a problem with the patient circuit, such as pinched or
detached tubing, water condensation in the proximal pressure lines, or problems with the active exhalation device.
Low Circuit Leak Alarm
This is a high priority alarm that only occurs with the passive circuit. It occurs when the system detects a problem with the
leak device in the passive circuit.
Note: During Nebulizer Treatment with a Passive circuit, the Low Circuit Leak alarm sensitivity is adjusted for a 20-minute
period in order to reduce nuisance alarms. The Low Circuit Leak alarm will still alert the user of potential hazards, such as
a blocked exhalation port, but the number of alarms should be significantly reduced.
The ventilator system (used with patient circuit accessories, such as patient interface devices,
humidifiers, water traps, and circuit tubing) may contain small parts which could result in a
choking hazard.
Be certain that if a humidifier is in use, including heated breathing tubes, that they comply with
ISO 8185 or ISO 80601-2-74.
Do not use the ventilator at an altitude above the maximum rated altitude or outside the stated
temperature range. Using the ventilator outside of this temperature range or above this altitude
can affect the ventilator performance which consequently can result in patient death.
Do not use the ventilator in a hyperbaric chamber.
Do not use the ventilator in the presence of nitrous oxide.
Do not use the ventilator with helium or in the presence of mixtures in combination with helium.
Route all cables in a manner to prevent injury to the patient and caregiver (e.g., tripping,
strangulation, etc.).
To ensure accuracy of oxygen administration and to monitor for the presence of contamination
(incorrect gas connected), use an external oxygen monitor that complies with ISO 80601-2-61
to verify the oxygen concentration in the delivered gas.
When the ventilator is used for non-invasive ventilation, measurement of exhaled carbon dioxide
concentrations requires CO
The remote alarm shall be tested daily and after every connection.
monitoring in accordance with ISO 80601-2-55.
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