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neuroConn DC-STIMULATOR MR

neuroConn DC-STIMULATOR MR

fMRI-compatible stimulator for neuroscientific research

The DC-STIMULATOR MR* is an electrical stimulator for conducting research on non-invasive transcranial direct- and alternating current stimulation (tDCS, tACS) specifically during magnetic resonance imaging (f)MRI.

The DC-STIMULATOR MR* is a micro-processor-controlled constant current source. It meets the highest safety standards thanks to (hardware- and software-based) multistage monitoring of the current path. By continuously monitoring electrode impedance it can detect insufficient contact with the skin and automatically terminate stimulation.

Features

  • 1 channel, unipolar (DC) and bipolar (AC) stimulation
  • Adjustable range of current ±4,500 µA, maximum adjustable current strength ±1,500 µA (peak-to-peak)
  • Adjustable application time up to 30 minutes
  • Frequencies adjustable up to 250 Hz, phase freely adjustable
  • 4 standard modes - single (continuous stimulation) - pulse (cyclical stimulation activation/deactivation) - sinus (sinus wave) - noise (normally distributed)
  • Use during fMRI, no interference of the MRI images during EPI sequence
  • RF filter module with MRI-compatible cables and electrodes
  • Customer-specific programs possible (optional)
  • "Study mode" for blind processing of genuine and 'pseudo' stimulation (optional)
  • External trigger input and output (optional)

Specifications

Internal 12bit D/A conversion
Internal time resolution 1 ms (sample rate 1,280 sps)
"Single" stimulation modeduration 15-1,800 s, increment 15 s, duration of fade in/fade out 1-120 s, increment 1 s
"Pulse" stimulation modeduration of complete pulse cycle/interstimulus interval (ISI) 300-2,000 ms, increment 100 ms, pulse width 200- (ISI-100), increment 100 s, number of pulse ccles 1-500
"Sinus" stimulation modeadjustable current up to 3,000 µA (p-p) in 25 µA increments, offset of 0 to ± 1,000 µA, increment 10 µA, frequencies up to 250 Hz, increment 0.01 Hz, adjustable phase 0-360º in 5º steps, application time adjustable up to 30 min
"Noise", "noise LF", "noise HF" stimulation modeadjustable current up to ± 1,500 µA (p-p), offset of 0 up to ± 1.000 µA, increment 50 µA, duration 0-1,800 s in 5 s increments, current adjustable over period of 0-120 s to reach and leave oscillation level
Max. voltage limitation ± 20V
Dimensions5.3″W x 8.9″D x 2.2″H
Weight (incl. batteries)1.8 lbs

Items marked with are investigational devices and for research use only. CAUTION - Investigational Device. Limited by Federal (or United States) law to investigational use.

About Jali Medical

Established in 1991, Jali Medical is a company at the cutting edge of the emerging field of non-invasive brain stimulation. We are proud to be the US distributor for the best magnetic and electrical nerve stimulation equipment and accessories available.

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Jali Medical, Inc.
330 Bear Hill Road, Suite 303
Waltham, MA 02451
Phone(781) 376 0008 | (888) 959 JALI
Fax(781) 376 0808
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