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grapevine™ products

neural interface processor

electrode front end modules

general front end modules

trellis application suite

The grapevine™ Neural Interface System brings an unprecendented level of compact design and integration to high-density neural interface applications. System supports EEG, EMG, ECoG, ENG, ECG, and extracellular spike recording and online processing applications. The grapevine™ can be configured and customized with the companion trellis Application Suite using your own source code. The system includes software for data display and storage, as well as the ability to add user-specific processing code for interfacing to external systems in real-time. Front end modules for electrical stimulation currently in development.

key features

Real-time spike sorting for up to 256 microelectrodes along with collection of local field potentials.
Acquisition and processing for up to 512 channels of EEG, ECoG, EMG, or ECG.
Synchronous capture and processing of additional experiment analog and digital signals.
Optimization for low-latency, closed-loop control applications with external systems and devices.
Compliant with UL 60601 safety and leakage standards.
Support for Linux, Mac OS X, and Microsoft Windows.
Open Source software for easy modificaiton and development for custom applications

Complete 128 channel systems available
for under $60,000. View price list

Contact us to schedule a demonstration in your lab.

download the grapevine brochure
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neural interface processor technical specifications

	input channels	up to 512 surface electrodes or 256 extracellular microelectrodes
	connections	up to 16 grapevine front end modules, support for external USB devices, gigabit Ethernet
	safety	UL 60601 compliant
	dimensions	19 x 12 x 2.5 cm [7.5 x 4.5 x 1.0 in]
	power	12VDC input, 30W max
	mounting	75 mm VESA
	options	portable battery power; wireless options with USB adapter
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electrode front end modules

Implanted Microelectrode (LFP and Spike)	The ECR-32S includes electrostatic discharge and leakage protection optimized for implanted microelectrodes and is capable of impedance measurements.
Surface EEG, EMG, ECoG, and ECG	The SFR-16D and SFR-32S provide enhanced electrostatic discharge protection for cabled body surface electrodes, with 16 differential or 32 single reference inputs.
Small Animal Microelectrode	The ECR-32S-N series offers reduced weight and higher density connectors for use with implanted electrodes in smaller animals (not for clinical use).
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technical specifications

device	ECR-32S, SFR-16D, SFR-32S	ECR-32S-N
channels	16 or 32	32
input connector	1.27mm pitch, 36-pin Samtec, Omnetics, or custom connector	0.63mm pitch, 36-pin Omnetics #A8649 or similar
weight	13.8 g	2.5 g
dimensions	34 x 48 x 5 mm 1.43 x 1.88 x 0.188 in	32 x 15 x 4 mm 1.2 x 0.6 x 0.15 in
filtering	0.01Hz to 7.5kHz input bandwidth, with additional band selection via digital filtering
input range	±6.5 mV (±5.0V max allowable input)
resolution	16 bit, .25 µV/bit, up to 30 ksps
impedance	> 250MΩ II 20pF
noise	< 2.1 µVrms (referred to input)
CM rejection ratio	>90dB @ 50/60 Hz
DC offset handling	±2.5V
linearity/accuracy	>14 bit
input bias current	<25 pA
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general purpose front end modules


analog I/O ANA-SM	digital I/O DIG-SM
28 channels, ±5V analog input (4 SMA connectors, 1 microD-25)	16-bit LVTTL data input port (16 event inputs or data to 2MB/s)
28 channels, ±5V analog output	4 dedicated LVTTL event inputs
2 channels, line-level audio in	20 LVTTL event ouputs
4 channels, line-level audio out	1 RS-232 serial I/O port
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The trellis Application Suite is designed to display and store recorded data, set up closed loop stimulation, and configure the grapevine™ system. It is an open-source and multi-platform application suite, currently consisting of seven main components. The suite source code is available for both the scientific community and the general public under the terms of the GNU General Public License version 2.0, as published by the Free Software Foundation. We provide the open architecture to enable users to tailor the applications to their specific needs. We encourage the user community to provide feedback or even participate in the development of the application suite.

The programs were written using the C++ based QT cross platform development toolset by Trolltech. They can be run on Windows XP, Windows Vista, Mac OS X, and multiple flavors of Linux and UNIX. The QT toolkit ensures high performance and native look and feel on the supported platforms.

current projects

To see projects currently in development, click here.

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