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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Step 1 -
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start monitoring session
From the main screen click on new session (1) button to start monitoring session.
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TIP - For login instructions and pairing sensor please read section 6.3 |
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Step 2 - fill in patient data (optional)
At the beginning of the monitoring session, an optional step is to fill patient data. This information will be used and recorded in the final report. Fill in all data correctly and click on “start monitoring”(1) as shown in Figure 6.5-2
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TIP - For faster monitoring, you can choose to skip this step, but for the report to be generated, you will have to fill in the patient information at the end of the monitoring session. |
Step 3 - position sensor
When starting
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sensor placement a screen to help with sensor positioning. This will inform you about the headband tightness. Before placing the sensor on the patient's head the option will show that the sensor is too loose
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With the sensor and headband assembled, place them around the patient's head as shown
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below.
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Sensor Placement (B) = 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. |
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Sensor placement (A) = 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. |
Step 4 - 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
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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.
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 |
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In such a case loosen the turnbuckle until the green message of OK! appears |
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. | 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 |
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/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 sensor pin with hand or any other object, this may damage the sensor. |
Step
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5 - assisted signal quality check
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ATTENTION - this assisted verification option |
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requires an internet connection. |
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Sample gathering - when correctly positioned, the B4C System will start collecting a 30 second sample of the captured |
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waveform for quality verification | |
Adequate quality - An average 30 second pulse will be presented with respective confidence intervals |
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and will be updated every 5 seconds. |
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Inadequate quality - In some situations, the |
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captured signal does not have sufficient technical quality. The system will indicate |
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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 |
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judgement or diagnosis. The is a technical |
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verification and the |
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insufficient signal quality |
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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. The familiarity with the waveform is a healthcare professional interpretation based on their experience and exposure to ICP waveforms
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Step 4b - unassisted signal quality check (option w/o internet)
When the sensor tightness is adequate and there is no internet connection, the sensor positioning bar will turn green. In this case, a visual check of the signal quality is suggested before starting a monitoring session.
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