Neurophysiology Monitors - Neuroimaging systems - Neurodiagnostic Devices

Using the past two decades of experience and best available technology, Neuroscan is pleased to offer the SynAmps² to the Neuroscience community. Dedicated to high-density recordings, SynAmps² is a 70 Channel amplifier system, consisting of 64 monopolar, 4 bipolar and 2 high-level channels. Each channel has a dedicated 24 bit A-to-D, to ensure the most accurate sampling available.

Active Noise Cancellation is an integral feature of the SynAmps² design, providing unparalleled noise immunity. This ensures an accurate representation of the neurophysiological activity even in the most hostile electromagnetic environments.

Using the latest technology has not only allowed us to make the SynAmps² our most capable amplifier ever, it has also allowed us to put it into a small, cost effective package.

SynAmps² Consists of Three Components:

Headbox - Each Headbox consists of 70 channels, and multiple Headboxes can be linked together to build high-density systems. Our modular approach to amplifiers provides a simple and flexible upgrade path.

All of the essential electronics have been moved to the Headbox. Our low noise 24 bit A-to-D chip allows for low gain to be used while still maintaining the resolution required for the most critical researcher. Data is digitized immediately in the headbox and transmitted to the host computer via a high-speed USB-2 connection guaranteeing lossless transmission. Quality of the signal is assured by our impedance testing circuitry, which allows you to verify impedance both on the Headbox and in a software display.

Touch-proof connectors are provided to allow for the greatest flexibility, while our high-density connector permits Quik-Cap^TM to be easily connected. Inputs for high-level signals are also provided, allowing you to capture the time series data of other measures along with the EEG.

System Unit - Serving as a hub for multiple Headboxes, the system unit is the distribution center, assuring absolute synchronization of sampling and triggers between all of the Headboxes. The System Unit is also the communication center with the host computer. Using a USB2 connection, the system unit ensures accurate transmission of data and trigger timing information.

Power Unit - Isolation of the subject from the power mains is a critical safety aspect of a complete system. The Power Unit houses a medical grade transformer, allowing you to connect those devices that contact the subject to one reference point. This assures that leakage currents and proper grounding meet world wide certification safety requirements for patient connected devices.

SynAmps² Highlights

Design Features

Headbox-Based Amplification - Analog signals, whether buffered or not, are susceptible to noise. With the SynAmps², signals are amplified and digitized right at the patient side, providing a digital signal transmission path and providing the very best signal integrity.

70 Channel Headbox Units - Allows you to use ALL of your channels. The SynAmps² offers two external auxiliary and four bipolar inputs in addition to the standard 64 channels per headbox. You don't have to convert bipolar channels to monopolar to get your full montage.

Check Electrode Impedances Right at the Headbox - Electrode impedances are checked against a user-selectable threshold and the results are instantly available at the headbox.

Compact System Design - Each system consists of one or more headboxes, weighing in at less than 5 lbs, a system unit and a power unit. System and power units will handle multiple headboxes for high-density recordings.

Up to 256 EEG Channels on a Single Small System Unit - A single system unit will handle up to four head boxes, creating a 256 channel system in about one quarter the space of the original SynAmps unit. Combine two system units to create a super-high density system.

Standard Windows Computer and USB 2.0 Interface - Plug and play operation makes connection and setup easy and fast. No proprietary analog to digital, PCI or data interface cards need to be installed, complicating the system. The industry standard USB 2.0 interface will allow you to move to another PC easily.

Quik-Caps from Neuromedical Supplies Connect Directly - Conversion (EBA) cables are no longer required for cap connection. Neuromedical Supplies Quik-Caps connect directly to the quick-disconnect high-density connector on each headbox for no-problem patient setup. Touch Proof connections for each channel are also provided.

Technical Features

24-Bit Data Conversion - Even within all the excellent high-bit count analog to digital (A/D) converters currently on the market, we"ve specially selected the quietest product available for use in the new SynAmps², delivering the best signals with the greatest dynamic range possible. You demand clean, high-resolution data and we deliver it. Data from the SynAmps² also flows seamlessly through to the new 32-bit version of Scan.

Active Noise Cancellation - Provides unparallel noise immunity. This ensures an accurate representation of the neurophysiological activity even in the most hostile electromagnetic environments

10G Ohm Input Impedance - The very best in instrumentation amplifier technology is used to ensure that your signals are faithfully recorded.

External (auxiliary) Sensors can be Connected With Ease - Two external inputs per headbox come standard. Both are isolated from patient and computer connections with a+/-5 volt input range. Data is time locked with the EEG data.

External (auxiliary) Sensors Require No External Power - Sensors can be powered from the headbox. up to +/-10V at 100mA. This enables use of strain gauges and a wide range of input devices where the output is time locked to the acquired data.

Bandwidth/Acquisition Rates for the Studies You Want to Run - You want the capability to go from GSR to ABR in one instrument. If you need extra bandwidth and higher acquisition rates, SynAmps² should be your device of choice. With SynAmps², you will never wonder if part of the signal you needed for source or other analysis is above the bandwidth of your data collection device.

Advanced Impedance Technology - Enables the use of advanced impedance modeling techniques and allows you to obtain impedance of the reference electrode in addition to the typical recording channels.

System Integration Features

Built-In Compatibility With Other Neuroscan Products - The seamless system integration that you've come to expect from Neuroscan continues with SynAmps². A totally integrated system including amplifier, data acquisition, stimulus generation, data analysis, and source analysis means that you spend your time doing research, not putting systems together.

Backwards Compatibility With Your Existing STIM or Other Stimulus Generation Programs - SynAmps² uses the same trigger connector that the original SynAmps and NuAmps use, so there is no need to modify your existing stimulus protocols.

MagLink Compatibility - SynAmps² was designed with the difficulties of recording in the MRI in mind. Specific engineering considerations were built in to the system to provide the best possible recordings in the MRI.

Advanced De-blocking Circuitry - Allows for recording of TMS and other high intensity stimuli, maximizing the data integrity without affecting the amplifier.

Extended Cabling Systems - Allows your headbox to be positioned up to 10m away from the system unit for maximum flexibility. Cabling and filters for shielded room patch panels will also be available.

Head box Mounting Options - Multiple mounting options, including wall, tripod and table mount, ensure that head box can be secured in your recording environment.

Integrated Power Supply - In addition to powering the SynAmps², the power unit will allow you to power up to 4 additional devices, ensuring a common ground is used in all of your patient connected equipment.