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CGX A Cognionics Company
Mobile-72
This manual contains general operating instructions, precautionary measures,
maintenance instructions, and information for use of the CGX Mobile-72.
Please read this manual carefully and familiarize yourself with the controls and
accessories before using the product.
Note
This is an investigational device designed for research and development efforts.
•
It is not an FDA-approved medical device.
•
There are no known side effects from the use of this product.
•
Description
The Mobile-72 is a wireless, high-
density gel EEG system.
The amplifier provides wireless
acquisition of recorded EEG signals.
Wireless technology allows the subject
to move about while real-time data is
collected and displayed. EEG channels
are sampled at a time resolution of
500Hz and converted to digital data at
24 bits of resolution.
The Mobile-72 provides research grade
signal quality and is ideally suited for
high-density EEG and ERP research in
laboratory and field environments.
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Table of Contents
Related Manuals for CGX Mobile-72
Summary of Contents for CGX Mobile-72
- Page 1 CGX A Cognionics Company Mobile-72 This manual contains general operating instructions, precautionary measures, maintenance instructions, and information for use of the CGX Mobile-72. Please read this manual carefully and familiarize yourself with the controls and accessories before using the product.
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Page 2: Device Overview
• the system. or gases Precautions For The Practitioner Do not drop the product. • The Mobile-72 is not a diagnostic tool. • Device Overview Mobile-72 Overview and the depressions in front of each ear EEG is the measurement — through the (preauricular points). - Page 3 Bluetooth Dongle Following Items 2 Syringes 3 Tubes EEG SignaGel Mobile-72 Amplifier 2 Rechargeable Li-Ion Batteries Mobile-72 Electrodes 1 Charger Mobile-72 Electrode Breakout Box Carrying Case 3 EEG Caps (54 cm, 56 cm, 58 cm) Manual Harness Mobile-72 Headset Electrodes Electrode Bundle...
- Page 4 See printed Headmap Insert for electrode locations. 4. Charge and Insert the Batteries Into The Amplifier Allow the batteries to fully charge before each use. Place Slide batteries into batteries in the Amplifier. compartment. 5. Snap The Amplifier Onto The Breakout Box Carefully push at the center of the Mobile-72 Amplifier when installing. Attach Amplifier to Electrode Bundle Breakout Box.
- Page 5 Double click on the CGX Acquisition software icon. You should see under CGX Mobile-72 Discovered Devices. If you do not see the name CGX Mobile-72, remove and re-insert the dongle and restart the software. Click the device name in this window to select the...
- Page 6 Bring up the impedance check in the CGX Data Acquisition software under the Channels tab. The impedance check presents a color-coded map of the sensors on the device, corresponding to contact level: Impedance out of range (>100 kΩ...
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Page 7: Disposal Instructions
To avoid cross-subject contamination, follow the cleaning instructions to clean sensors and headset after each use. This device is not intended to be sterilized in an autoclave. Cleaning The Mobile-72 Amplifier Use hand sanitizer or alcohol wipes to the Mobile-72. • Cleaning The Electrode Breakout Box Remove Amplifier from Electrode Breakout Box. - Page 8 Obtaining Clean EEG Data The most important aspect of EEG recording is that Mobile-72 sensor locations output data is only as good as the recording input. While lie within 1.0 centimeters on the vast majority of hand- algorithms exist to remove artifacts, poorly recorded data measured 10-10 placements.
- Page 9 Understanding Readings (20 Channels Shown For Clarity) Clean Data At Default Scale Traces are thin and deviate minimally from the axis. Blinks Eye blinks will generate muscle artifacts in the frontopolar locations (Fp1 and Fp2) and less so in frontal sensors (F3/F4, F7/F8), overshadowing brain activity in EEG recordings. Eye Movement Moving the eyes will generate muscle artifact in the forehead and front of the head.
- Page 10 Understanding Readings (20 Channels Shown For Clarity) Muscle Artifact: Jaw Clench Jaw clenching may affect most or all channels, especially if clenching hard. Light jaw clenching or tightness can be observed in F7/F8, T3/T4. Take note of any temporomandibular joint disorders: these can cause artifact without typical clenching. Muscle Artifact: Tongue Movement The tongue is a large polarized muscle, with the tongue’s tip negative with...
- Page 11 Understanding Readings (20 Channels Shown For Clarity) Muscle Artifact: Neck Tension Neck tension may affect channels on the back of the head, predominantly O1/O2, but also in parietal sensors (Pz/P3/P4, P7/P8). Subjects should be comfortably seated, with appropriate bracing at the back and neck. Avoid slouching. Headset Or Electrode Disruptions: Sensor Pops Brief disruptions in contact between sensor and scalp may cause “sensor pops”...
- Page 12 To avoid power line artifacts, have subjects sitting at least 3 feet from power cords, plugged-in devices, and lighting or overhead fluorescent lights. The Mobile-72 shields the sensors from environmental noise, but issues can still occur with poor skin contact.
- Page 13 Understanding Readings (20 Channels Shown For Clarity) Improper Setup: No Connected Reference There are a multitude of recording errors when Reference is not connected to the subject. The most common are: • Impedances match or nearly match at a low value but do not appear on the display or in the impedance head map.
- Page 14 Understanding Readings (20 Channels Shown For Clarity) Improper Setup: Reference Contact When the reference channel is touched or jostled, all channels will be affected. Improper Setup: Reference Disruption When the reference is disconnected, all channels will disconnect as well. Improper Setup: Ground Disruption If Ground has poor contact, all channels will be impacted. Avoid disrupting the Ground connection during use.
- Page 15 • Device Configuration information; changing the settings will not change the configuration of the device. If you need to change device configuration, contact support at CGX. Data Recording Click to open a file dialog. Select the desired • Record location, file name, and file type. (CSV files have a time stamp built in).
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Page 16: Software Reference
Software Reference Display Tab Scaling: Headset The display tab controls scaling and other viewing sets the x axis time window. By default, it is set to 2 • Time parameters for the signals. seconds. sets the y axis vertical gain for the EEG • Scale (EEG) channels on the head. -
Page 17: Channels Tab
Software Reference Channels Tab The bottom half is a graphical map of sensor contact The top half of the Channels tab contains a table quality. Red circles indicate poor contact, whereas light displaying information about green circles indicate acceptable contact. Dark green each channel in the system circles indicate ideal contact. - Page 18 Software Reference Markers Tab Received Triggers The box shows all of the received triggers chronologically. • If no trigger is in range, value received will be 47831 (in • hex: 0xBAD7). This button will clear all of the triggers in the • Clear History box.
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Page 19: Status Tab
• Lost Packets in communications between the headset and the computer, increasing as the headset moves away from the computer. (not applicable) • AIM Sensors Battery status is displayed at the bottom of • Battery Level this tab. The Mobile-72 only uses Batt: A. -
Page 20: Specifications
RA number issued by CGX. CGX A Cognionics Company 8445 Camino Santa Fe, #104 Imported By: San Diego, CA 92121 Brain Products GmbH 858-864-9400 Zeppelinstrasse 7 Sales@CGXSystems.com 82205 Gilching, Germany www.brainproducts.com Covered by Patents issued and/or pending under license from Cognionics, Inc US9314183B2, US9615761B2, US9935726B2, US8798710B2, and International patents. © 2020 CGX, LLC. Doc: M720082320...