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Summary of Contents for MindMedia NeXus-4
- Page 1 NeXus-4 User Manual Version 2.0 0344...
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Page 2: Table Of Contents
Product overview Product components Intended use NeXus-4 views User interface Patient connections Device label Instructions for use Software Powering the NeXus-4 Transfer data to PC Perform measurement Mobility Operational principles Bipolar input channels Auxiliary input channel Filtering Maintenance Electromagnetic guidance... -
Page 3: Service And Support
Service and support About this manual This manual is intended for the user of the NeXus-4 system – referred to as ‘product’ throughout this manual. It contains general operating instructions, precautionary measures, maintenance instructions and information for use of the product. Read this manual carefully and familiarize yourself with the various controls and accessories before starting to use the product. -
Page 4: Safety Information
Safety information This section contains general warnings, explanation of markings, limitations of use, safety measures, and precautionary measures that are important for the safe use of the product. Explanation of markings This section explains the various markings and symbols used with the product. Manual contains important safety information Attention: read important safety information Important information / guidance for use... -
Page 5: Limitations Of Use
Limitations of use Limitations of use • Under federal law (only applicable to the USA) this product may only be sold by or on the order of a physician or licensed practitioner. • The product may only be used under the constant supervision of or on the instructions of a physician or other authorized medical professional. - Page 6 Warnings • Before batteries are replaced, disconnect the patient from the device, and the device is switched off (Indicator led is off). Both batteries have to be replaced simultaneously, and have to be of the same type. Note the orientation of the batteries. •...
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Page 7: Precautionary Measures
Warnings • When connecting the system in an IT-network: • Simultaneous connection of other equipment to the same Bluetooth network may result in previously unidentified risks to patients, operators or third parties. Such risks must be identified, analyzed, evaluated and controlled. Subsequent changes to the Bluetooth network can introduce new risks that require additional analysis. -
Page 8: Product Overview
Product components The product comprises the following functional components: Item Description NeXus-4 device The data acquisition device (NeXus-4 Amplifier). The carrying bag to be used when the system is used in portable Carrying bag measurement configurations. Software* Device driver with application programming interface. The device is (PC Driver) supplied to you either on CD or via email (download). -
Page 9: Nexus-4 Views
NeXus-4 views Front View Description Patient Ground input DUAL BIPOLAR INPUT Input for dual bipolar input. Two bipolar pairs can be (A&B) connected to this input. Auxiliary input for (active) sensors. A list of compatible C & D sensors can be found on the website: www.mindmedia.com... -
Page 10: Patient Connections
Patient Lead Connectors: Bipolar, Auxiliary The number and type of inputs on your device depend on the configuration you have. NeXus-4 devices exist in many different configurations, varying from 2 up to 3 input channels. In general there are two types of patient connection inputs on the device: bipolar or auxiliary. -
Page 11: Instructions For Use
Software, that is needed to use the product, is supplied to you by email as download or by one or more CDs in the package. It is recommended to download the most up-to-date software via www.mindmedia.com. Once installed and activated, this step can be skipped. PC requirements Hardware •... -
Page 12: Powering The Nexus-4
Do not use rechargeable batteries. Power Saving Mode When the device is not in use (e.g. there is no active connection (pairing) with the PC), the NeXus-4 will switch off after 5 minutes to save its power. Transfer data to PC Bluetooth IT-network connections are supported by the product. -
Page 13: Perform Measurement
The pairing code consists of the last four digits of the serial number. The serial number can be found on the back of the NeXus-4 on the silver label next to ‘SN’. Click Next to finish the Bluetooth setup. -
Page 14: Operational Principles
After the first amplifier stage (gain = 20) the signals go directly to the ADC. No high pass or low pass filters that can cause signal phase shifts or filter overflows are present. The NeXus-4 has one dual bipolar input. This connector leads to two bipolar input stages for in total two differential channels. -
Page 15: Maintenance
The product does not contain user serviceable parts. Maintenance is limited to regular cleaning. Repairs can only be performed by the manufacturer, contact support@mindmedia.com in case the product needs to be repaired. Mind Media Support staff will determine whether a repair is required and possible. -
Page 16: Electromagnetic Guidance
Guidance and manufacturer’s declaration - electromagnetic emissions The NeXus-4 is intended for use in the electromagnetic environment specified below. The customer or the user of the NeXus-4 should assure that it is used in such an environment. - Page 17 Guidance and manufacturer’s declaration - electromagnetic immunity The NeXus-4 is intended for use in the electromagnetic environment specified below. The customer or the user of the NeXus-4 should assure that it is used in such an environment. Immunity test IEC 60601 test level...
- Page 18 Guidance and manufacturer’s declaration – electromagnetic immunity The NeXus-4 is intended for use in the electromagnetic environment specified below. The customer or the user of the NeXus-4 should assure that it is used in such an environment. Immunity IEC 60601 test...
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Page 19: Technical Specifications
• Its enclosure, also after removal of battery cover including all Applied parts contacts and receptacles • The patient accessories. Accessible parts Apart from the applied parts the NeXus-4 has no accessible parts. Software class per IEC 62304 Ingress protection Main unit: IP20 Bipolar Inputs (EEG, ECG, EOG, EMG, etc.) - Page 20 Auxiliary Inputs Noise < 15 µV rms (@ Fs = 512 Hz) Gain Input signal difference -2V to +2V Input common mode range -2V to +2V Ω Input impedance > 10 CMRR > 70 dB Connector LEMO 0B series 5 pin Filtering High pass None...
- Page 21 Usage Conditions Temperature +5°C to +40°C Humidity 15% to 93% Pressure 700 hPa to 1060 hPa Channel list Name Function Resolution/bit Range Bipolar signal A 0.012215 µV -100mV to +100mV Bipolar signal B 0.012215 µV -100mV to +100mV Auxiliary signal C 0.2384186 µV -2.0V to +2.0V Auxiliary signal D...
- Page 22 Copyright © 2017 Mind Media. All rights reserved. www.mindmedia.com...
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