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Hamilton T1 Ventilator Overview and Operation

Apr 22, 2025,

Summary of Hamilton T1 Ventilator at Westmead ED

Overview

  • Purpose: Replacing Oxylogs with Hamilton T1 for transportation from ICU.
  • Support: Training and support provided by manufacturer and local resources.
  • Key Features:
    • Turbine ventilator (no oxygen supply required for flow).
    • Oxygen supply range: 21-100%.
    • Suitable for neonatal, pediatric, and adult patients.
    • 9-hour battery life.
    • Automated mode with patient-specific lung protective strategy.

Set-Up

  • Essential Checks:
    • Calibration adapter (PTO) connected to flow sensor.
    • General circuit check after setup.
  • Circuit Setup:
    • Connect expiratory valve and circuit appropriately on the ventilator.
    • Ensure filter placement is considered to avoid excessive dead space, especially in children.

Operation

  • Modes:
    • Multiple modes including Adaptive Support Ventilation (ASV), pressure-controlled, volume-controlled, and noninvasive ventilation.
    • Important traditional modes: SIMV+ and S(CMV)+.
  • Practical Points:
    • Set patient height for calculating ideal body weight for ventilation settings.
    • Manual adjustment of I/E ratio required if respiratory rate changes.
    • Basic settings for a 70kg male: TV 490mls, RR 12, PEEP 5cmH2O, Fi02 100%, I:E ratio 1:2.

Troubleshooting

  • Common Issues:
    • Pressure alarms: Check for agitation or tube obstruction; ensure plateau pressure is <30cmH2O.
    • In emergencies, disconnect and manually ventilate if needed.

Modes of Ventilation

  • Adaptive Support Ventilation (ASV): Adjusts based on patient needs.
  • Airway Pressure Release Ventilation (APRV): For critical conditions like ARDS.
  • Other Modes:
    • APVcmv / (S)CMV+: Volume-targeted mandatory breaths.
    • PCV+: Pressure-controlled mandatory breaths.
    • PSIMV+: Pressure-controlled mandatory with pressure-supported spontaneous breaths.
    • SPONT: Spontaneous breathing with optional pressure support.

Starting Ventilation

  • Six Steps to Start:
    1. Quick Setup.
    2. Select gender.
    3. Adjust patient height (calculates IBW).
    4. Modify ventilation mode if necessary.
    5. Review settings.
    6. Start ventilation.

Additional Resources

  • Video Tutorials and Simulators:
    • Induction and setup tutorials available online.
    • Online simulator for practice.

These notes summarize the key points for the Hamilton T1 ventilator operation, setup, and troubleshooting at Westmead ED.