• Two, Four or Eight channels of computerized EMG measurement
• Preamplified sensors for unequaled accuracy
• Dynamic wide-band muscle monitoring
• EMG threshold control of neuromuscular stimulators
• Standardized protocols for biofeedback training
• Raw EMG sound

Superior Instrumentation
The Neuromuscular System/3 supports two, four or eight channels of surface EMG for a full range of dynamic & functional assessment applications and associated biofeedback training.

The System/3 features the Active Electrode, a compact sensor assembly that includes a miniaturized instrument preamplifier.  Locating the amplifier at the electrode site cancels artifacts before being transferred down the electrode cable, resulting in a superior signal.  Wide frequency band monitoring well below 100 Hz is provided to support accurate recording of fatigued muscles, a feature not included in most traditional surface EMGs.

 

THE SPECIFICS Software Fully integrated, high performance EMG system with computer interface. Software allows complete control over session configuration, including user defined conditions such as work/rest sets, and provides clinically appropriate, positive visual and auditory feedback for reinforcing the training goals. Software is easy to modify.  Save your changes as custom protocols and build your own library of general and patient specific procedures. Advanced documentation of muscle activity and patient progress is provided through graphic displays, automated data reduction, and printed reports. Software controlled triggers turn neuromuscular stimulators on and off.  Unique dual stimulator triggers provide both synchronous and reciprocal capability. Raw EMG sound provides dynamic tool for monitoring muscle activity and provides clear artifact detection.

Automated record keeping and report generation
Session data is saved for each patient in a database on the hard disk drive.  Programs collect this data automatically and produce session reports that include baseline, threshold, mean and min/max values for each trial.  The detailed data option allows you to also save the raw data from a session for later playback.  You can enter your comments for any session, making note taking simple and convenient.  And, you can review or print any portion of a patients record at any time.  Reports are suitable for insurance claims or referral sources.

HARDWARE / INSTRUMENTATION

EMG	Available with 2, 4 or 8 channels of surface EMG Calibrated EMG range: 0.01 - 1000 µV Input Bias Current:  Less than 2.0 Picoamperes Differential Input Impedance:  Greater than 1,000,000 Megohms Common Mode Rejection: 125 dB (100 Hz) 150 db (60 Hz) Bandwidth: 25-450 Hz. (60 Hz. Notch filter) Noise:  Less than 0.05 µV  (inputs shorted). Signal Quantification:  microvolts RMS. (Raw EMG outputs available as custom option)
Audio	Raw EMG Sound:  Front panel selectable, by channel
Triggers	Two software activated triggered outputs for neuromuscular stimulators.  Normally closed electronic switches.  7500 VDC optical isolation.  2.5mm phone connectors
Audio	Inputs:  Stereo line level inputs.  1V RMS. nom. 3.5mm phone connector. Outputs:  Stereo output for 8 ohm speakers, headphones.  Power output 2 watts/channel at 0.05% distortion.  3.5mm phone connector.
Outputs	Analog outputs suitable for connection to chart recorders, oscilloscopes, etc.  Full optical isolation for up to 8 channels, 7500V.  (AC 5s, <10pA leakage at 120 VAC).  DB15 connector.
Physical	Power sealed gel-cell rechargeable battery, 3 A/hr.  30 hours typical between charges. Front panel low BAT/CHG indicator.  (6A/hr. dual battery for 8 channel). Console:  14.4"W X 10.2"D X 4.3"H Weight:  Console:  9lbs. (12lbs for 8 channel configuration)
I/O	PCI card, or USB cable, or PCMCIA card