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For proper monitoring, you’ll need to properly position the sensor on the patient’s head and verify the acquired signal.
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ATTENTION - THIS STEP IS THESE STEPS ARE VERY IMPORTANT. PLEASE READ THEM CAREFULLY.
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Step 1 - position sensor |  |
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POSITION 
= The sensor must be positioned in the region of the temples (mid eyebrow line), i.e., at 15% of the reference point Fpz towards the Oz reference points at the back of the head following the circumference of the skull.
POSITION 
= The sensor should contact the scalp in the temporoparietal region about 2 inches (5-6 cm) above the entrance of the external acoustic meatus in the coronal plane and just below the head protrusion where the circumference is greatest.
Step 2 - tighten turnbuckle
Once the sensor is placed, tighten the turnbuckle into a snug, comfortable fit, turning it clockwise until a final click can be heard without excessive force. A proper adjustment will result in a green OK! on the app screen.
If the patient is awake, ask if he is comfortable with the pressure. If not, readjust the headband for a comfortable fit.
In conditions where patients are unresponsive, check for signs of discomfort or skin damage for at least every five minutes.
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Sensor too Lose | Sensor too tight |
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Excessive tightening will be indicated with a “sensor too tight” message. Loosen the turnbuckle until the green message of OK! appears. | Lack of tightening will be indicated with a “sensor too lose” message. Tighten the turnbuckle until the green message of OK! appears. |
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PRECAUTION - The patient position or movement and the BcSs-PICNIW-1000/BcSs-PICNIW-2000 sensors are known to affect the signal being recorded. As a result, if multiple recording sessions are obtained on the same patient, consistent positioning of the patient and device will lead to more comparable recordings. |
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After sensor placement and tightening an assisted waveform quality window will appear via sample processing according to the table below.
Sample gathering - when correctly positioned, the B4C System will start collecting 20s or 30s sample for quality verification. | |
Adequate quality - An average pulse will appear with respective confidence intervals. It will refresh every 5s. | |
Inadequate quality - In some situations, the captured signal does not have sufficient technical quality. Verify if the patient is quiet and/or adjust the sensor. |
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