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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 VERY IMPORTANT. PLEASE READ CAREFULLY.
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Step 1 - position sensor
SENSOR PLACEMENT 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 turnbuckleOnce 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.
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The app will inform you if placement is too tight or too loose.
Sensor too Lose | Sensor too tight |
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Excessive tightening will be indicated with a “sensor too tight” message. In such a case loosen the turnbuckle until the green message of OK! appears. | Lack of tightening will be indicated with a “sensor too lose” message. In such a case 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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PRECAUTION - Do not press the BcSs-PICNIW-1000/BcSs-PICNIW-2000 sensor pin with hand or any other object, this may damage the sensor. |
Step 3a - verify signal quality (optional - assisted)
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ATTENTION - this assisted verification option requires an internet connection. |
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 a 30 second sample of the captured waveform for quality verification | |
Adequate quality - An average 30 second pulse will be presented with respective confidence intervals and will be updated every 5 seconds. | |
Inadequate quality - In some situations, the captured signal does not have sufficient technical quality. The system will indicate this, meaning there is a need to stabilize the patient and/or adjust the sensor. |
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PRECAUTION - The signal quality check is NOT a clinical judgement or diagnosis. The is a technical verification and the insufficient signal quality message means one or more of the four conditions below are true:
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If the sensor is positioned correctly, the waveform shown on the positioning screen should have a typical ICP waveform characteristic.
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ATTENTION - The familiarity with the waveform is a healthcare professional interpretation based on their experience and exposure to ICP waveforms. |
Step 3b - verify signal quality (optional - non assisted)
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ATTENTION - this non assisted verification is required when connection with the cloud is lost or unavailable. |
After sensor placement and tightening an screen with live waveform will appear for visual verification of the waveform.
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Pre-requisites
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ATTENTION - make sure the steps below have been completed: |