The aim of this clinical trial is to evaluate four supraglottic airway devices for ventilation in a simulated condition of an entrapped trauma patient with simultaneous cervical spine immobilisation. All the studied devices are evaluated by fully-qualified and experienced paramedics (both male and female). The main questions it aims to answer are: 1. Which device requires the shortest time required to achieve a successful ventilation? 2. What is the first attempt success rate of the studied devices? 3. Which device is the easiest to use and the most user-friendly? Study participants will evaluate four different supraglottic devices in a restricted access to the entrapped trauma patient's airway. The maximum number of insertion attempts is limited to three per device.
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Successful ventilation time
Timeframe: During procedure: 120 seconds