When checking patient monitors, there are several things we can do to contribute to the quality of the simulation or prevent incorrect simulation. Below are 5 tips.
1. Use of a mandrel with the correct cuff size for NIBP simulation
To properly position the cuff used during the NIBP measurement, we use a so-called mandrel. These are fittings on which we place the cuff when simulating NIBP. This way you can use a cuff for newborns up to a thigh cuff for adults and include it in the check. Do you want to perform a leak test? Then, during a simulation, alternate a reusable cuff with a “rigid chamber”.
2. Correct connection of the ECG leads
To properly transfer the ECG signal from the patient simulator to the patient monitor, it is important that the ECG connectors are properly connected. In practice, we see ECG connections in the form of clips, push-button connections and connectors with banana plugs. Use the correct way of connecting. Too high a contact resistance can lead to signal loss of the simulated signal, giving you a distorted picture of reality.
Some patient monitors have the option to display the simulated ECG signal on the simulator’s display. This allows you to compare the ECG display on the patient simulator with the image on the patient monitor.
3. Physiologically synchronized simulation
A patient simulator that physiologically synchronizes the parameters, such as the ProSim 8, makes it possible to form a complete picture of the functionality of the patient monitor within a few minutes. In this way, you connect all the desired parameters, after which the device simulates the parameters simultaneously. The relevant simulated values also match a true-to-life patient image. This is also very useful for training purposes to quickly simulate certain situations.
4. Correct make of sensor / R-curve for SpO₂ simulation
When simulating SpO₂, always look at the correct brand of SpO₂ sensor. The sensor does not always have to be of the same brand as the monitor. However, the technology of the SpO₂ measurement is in the sensor. For example, if you use a Nellcor SpO₂ sensor on a Philips monitor, select Nellcor as the SpO₂ manufacturer on the patient simulator.
5. Check filter / noise setting on monitor
Does your patient simulator have the option to simulate interference signals? Then we recommend using this function. This allows you to check input filters on the patient monitor for correct operation. The patient simulator then sends out a disturbed signal, the starting point being that the patient monitor shows a correctly filtered signal on the monitor.
