Description:
The HIGH TEMP – GAS (CIRCUIT TEMP HIGH) alarm occurs when the temperature in the patient circuit, as measured near the Patient Box (under the white tape) is higher than the temperature setting by more than 3°C and has remained there for more than 1 minute; or the measured temperature is > 45°C, the upper allowable limit.

Troubleshooting:

• Place the humidifier in Pause (Wait) mode. Open the cartridge door to visualize the contact pins, noting if they are all at about the same level + 1-2mm. Close the cartridge door and press the PAUSE (WAIT) button, see if the alarm has cleared.
• If the alarm persists, place the humidifier in Pause (Wait) mode for 10-15 minutes to cool the system. After 15 minutes, press PAUSE (WAIT) to restart the humidifier.
• If alarm reoccurs press STANDBY and change the patient circuit. Press ENTER to resume HFJV operation.

For further information refer to:

• Model 204 User Manual, pg. 65; Alarms and Troubleshooting Guide, Tab 13
• Model 203 Operator’s Manual, VI-21; Alarms and Troubleshooting Guide, Tab 9

For further assistance, call the Bunnell Hotline. 800.800.4358 (HFJV)

Description: The CANNOT MEET PIP alarm will occur under the following conditions:

• The monitored PIP has not stabilized within +2.0 and -1.5 cmH2O of the set PIP for a continuous 20 seconds within 3 minutes of pressing ENTER.
• The monitored PIP has not stabilized within + 2.0 and -1.5 cmH20 of the set PIP for a continuous 20 seconds before the Servo has reached its maximum output of 20.

Common Causes:

• Spontaneous breathing, crying, coughing, hiccups, or the need for suctioning
• Higher CMV rates (ie ≥ 3 bpm) or CMV pressures causing fluctuations interrupting the ability to achieve Ready condition
• Minimal settings on the LifePulse (ie Jet rate 240, Jet PIP <15)
• Excess condensation in the LifePulse patient circuit causing water droplets to interfere with pressure monitoring
• Leaks, cracks, or loose connections
• Occlusion of clear pressure monitoring tube

Note: The LifePulse is looking for stability within a 20 second window to achieve Ready condition, and will continue this attempt for a maximum of 3 minutes. Anything creating unstable fluctuations within these ‘time windows’ will cause the alarm condition

Troubleshooting:

• Calm, medicate, sedate, or suction the patient as appropriate.
• Change the LifePort adapter and confirm LifePort adapter is same size or larger than ET tube diameter.
• Check the LifePort adapter orientation to make sure the clear pressure monitoring tube is pointed upward.
• Adjust LifePulse humidifier temperature settings to minimize condensation.
• Remove excess condensation from either the HFJV patient circuit or the CMV circuit, including the exhalation valve and expiratory filter.
• Temporarily reduce the CMV rate to 2 bpm until READY illuminates, then reinstate the CMV rate to ordered value.
• Press AUDIO PAUSED (SILENCE) to silence the audible alarm and remain at the bedside. The alarm will resolve when Ready condition is met.
• 
  

  Attention: DO NOT press ENTER (or RESET) as this resets the ‘time windows’.

   

For further information refer to:

• Model 204 User Manual, pg. 55; Alarms and Troubleshooting Guide, Tab 4
• Model 203 Operator’s Manual, VI-12-14; Alarms and Troubleshooting Guide, Tab 6

For further assistance, call the Bunnell Hotline. 800.800.4358 (HFJV)

Description: The LOSS OF PIP alarm will occur under the following conditions:

• The monitored PIP has dropped by more than 25% of the set PIP
• The monitored PIP is < 3 cmH 2 O
• The monitored value for Delta P is < 2 cmH 2 O

Common Causes

• Spontaneous breathing, crying, coughing, hiccups, or the need for suctioning
• Excess condensation in the LifePulse patient circuit causing water droplets to interfere with
  pressure monitoring
• Leaks, cracks, or loose connections
• Malfunction of the pinch valve in the Patient Box

ATTENTION:

• In the non-Ready condition, the patient is NOT being ventilated.
  • A LOSS OF PIP alarm occurring in the non-Ready condition causes the servo valves to turn
    off & Servo decreases to Zero to protect the patient.
  • Troubleshoot as outlined below.
  • Press ENTER to clear the alarm and allow the LifePulse another attempt to reach the set
    PIP.
• In the Ready condition, the patient continues to be ventilated.
  • A LOSS OF PIP alarm occurring in the READY condition indicates the Servo has locked at
    or near the previously established operating value.

  • ATTENTION: DO NOT PRESS ENTER (or RESET).

    • Pressing ENTER (or RESET) places the LifePulse in the non-Ready condition.
    • If the LOSS OF PIP alarm reoccurs, the patient will not be ventilated.
  • Press AUDIO PAUSED (SILENCE) to silence the audible alarm.
  • Troubleshoot as outlined below.

Troubleshooting:

• • • Confirm all patient connections are secure including the CMV heater probe, CMV connections,
      suction catheter, exhalation valves or filters, and the (green) Jet circuit to the injection port.
    • Confirm the clear pressure monitoring tube is patent, free of obstructions and connected
      securely to the Patient Box.
    • Adjust LifePulse humidifier temperature settings to minimize condensation.
    • Remove excess condensation from either the HFJV patient circuit or the CMV circuit, including
      the exhalation valve and expiratory filter.

For further information refer to:

• • Model 204 User Manual, pg. 54; Alarms and Troubleshooting Guide, Tab 3
  • Model 203 Operator’s Manual, VI-10-12; Alarms and Troubleshooting Guide, Tab 7

For further assistance, call the Bunnell Hotline. 800.800.4358 (HFJV)

• The LifePulse HFV patient circuit is for single patient use only. It is guaranteed for 7 days of operation.
  Note: Failure to discard the patient circuit after one use or 7 days may result in leaks, improper
  temperature, and water level control.
• If having persistent humidifier alarms:
  • Call the Bunnell Hotline to troubleshoot potential fixes and determine if patient circuit should be returned for inspection.
  • Return patient circuit to Bunnell Inc. for inspection as directed. If failure is confirmed, a replacement will be issued at no charge.
  • Obtain a return authorization number by contacting Bunnell customer service. Please provide
    the product lot number and number of days the item was in use. Call 800.800.4358 (HFJV)
    Monday through Friday, 8am-4:30pm MT.

• Orient the clear pressure monitoring tube on the LifePort adapter upward.

• The LifePort adapter is for single patient use only.
  • It is recommended to discard after 7 days of continuous use.
• Condensation in the pressure monitoring tube, a crack in the Jet injection port, or a slight defect in the
  pressure monitoring tube not readily visible may cause increased pressure fluctuations to be displayed
  in the MONITOR section.
• Changing out the LifePort adapter may alleviate excessive fluctuations and eliminate nuisance alarms.

• If a VENT INOP 02 (VENTILATOR FAULT 02) alarm occurs during the System Test after confirming all connections are correctly made
• After failing an Operational Test at initiation of HFV or during troubleshooting
• If the CHECK VENT (VENTILATOR FAULT or JET VALVE FAULT) alarm occurs during operation of the LifePulse when no other alarms are present and after confirming all connections are correctly made
• If there is visible physical damage to the Patient Box

• Discrepancies may be a result of the calibration differences of each device.
• The LifePulse utilizes the LifePort adapter to measure PEEP within the airway; the CMV will generally measure PEEP at the inspiratory port or exhalation valve.
• Because these values are being measured at different locations, the LifePulse measured value will often be slightly lower than the CMV value.
• If the measured PEEP reading on the LifePulse is > 1 cmH 2 O higher than the set PEEP on the CMV, evaluate for the presence of autoPEEP or excess condensation in the expiratory limb of the CMV circuit, exhalation valve, or expiratory filter.
• Confirm LifePort adapter is same size or larger than ET tube diameter.
• For further assistance, call the Bunnell Hotline. 800.800.4358