Neurostyle - Model NS-EMG-C-1 - Electromyogram (EMG) System
NS-EMG-C-1 is a digital EMG device. It acquires, stores and review up to 4 channels of EMG data and 2 channels evoked potential (EP) channels. It can perform routine EMG system recording, EP, as well as nerve conductive velocity (NCV) diagnostic examination.
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Features
EMG System | EMG Device Key Features
- Pre-amplifier operable with up to 4 EMG channels
- High signal quality with USV data transmission, shielding the signal from power line interference
- Consists of 3 standard EMG modules with 4 EP modules
- Easy-to-understand illustations of electrode placements, stimulation positions and standard waveforms
- Easy access to waveform data comparison
- Ability to review and generate report for past cases
System Key Features:
- Pre-amplifier operable with up to 4 EMG channels
- High signal quality with USB data transmission, shielding the signal from power line interference
- Consists of 3 standard EMG modules and 8 NCV modules
- Easy-to-understand illustrations of electrode placements, stimulation positions and standard waveforms
- Easy access to waveform data comparison
- Ability to review and generate report for past cases
- Waveform caching function enables saving of multiple waveforms with the same examination point
- Screen display of individual F-wave, H-wave and overlay
- Display of latency and amplitude values with measurement lines for easy reference
Parameter
System Parameters: A. Amplifier Parameters
- Display Sensitivity: 0.05μV/div ~ 20,000μV/div, ±10% error. No precision requirements below 50μV/div.
- Frequency-Amplitude Characteristics: 0.2Hz ~10 kHz, error is +10% ~ -50% between 0.2Hz ~ ≤0.5Hz, and error is +5% ~ -30% between >0.5Hz ~10 kHz.
- Scan Speed: 1ms/div ~ 5000ms/div; error = ±10%;
- High-Pass Filter: 10Hz ~ 20,000Hz; error = +10% ~ -30%;
- Low-Pass Filter: 0.1Hz ~ 5000Hz; error = +10% ~ -30%.
- Common Mode Rejection Ratio: ≥110dB;
- Input Impedance: ≥1000MΩ;
- Noise Voltage:= 0.4μV (RMS);
- Resistance to Polarization Voltage: At ±300 mV DC polarization voltage, bias is ≤5%.
- Current Pulse Output Intensity: Maximum output 100mA; at 0mA ~ 4mA, step difference is 0.01mA. Error = ±10%;
- Pulse Output Frequency: 0.1Hz ~120Hz, error = ±10%;
- Target Pulse Width: 50μs, 100μs, 200μs, 300μs, 500μs, 1000μs; error = ±10%;
- Stimulus Direction: Positive, Negative, and Two-Way.
Uses
- Electromyography machines are largely used in clinical settings or hospitals to monitor muscles cells while they are active and at rest.
- The EMG machines are widely used as a research tool for studying kinesiology, motor control disorders.
- The EMG signals can be used to activate or regulate external assistive devices such as orthoses and prosthesis.
- With the advancement of technology the EMG technique and signals are used for neuropsychological mapping during brain surgery, it helps in monitoring the eloquent areas.
- Electromyography is being used in a myriad of evolutionary ways like in engineering applications. The myoelectric signal produces activation magnitude, that magnitude is then used to deduce a target force and motion of a worn mechanical appliance emulsion.
Amplifier Parameters
- Display Sensitivity: 0.05μV/div ~ 20,000μV/div, ±10% error. No precision requirements below 50μV/div.
- Frequency-Amplitude Characteristics: 0.2Hz ~10 kHz, error is +10% ~ -50% between 0.2Hz ~ ≤0.5Hz, and error is +5% ~ -30% between >0.5Hz ~10 kHz.
- Scan Speed: 1ms/div ~ 5000ms/div; error = ±10%;
- High-Pass Filter: 10Hz ~ 20,000Hz; error = +10% ~ -30%;
- Low-Pass Filter: 0.1Hz ~ 5000Hz; error = +10% ~ -30%.
- Common Mode Rejection Ratio: ≥110dB;
- Input Impedance: ≥1000MΩ;
- Noise Voltage:= 0.4μV (RMS);
- Resistance to Polarization Voltage: At ±300 mV DC polarization voltage, bias is ≤5%.
Current Stimulation Parameters
- Current Pulse Output Intensity: Maximum output 100mA; at 0mA ~ 4mA, step difference is 0.01mA. Error = ±10%;
- Pulse Output Frequency: 0.1Hz ~120Hz, error = ±10%;
- Target Pulse Width: 50μS, 100μS, 200μS, 300μS, 500μS, 1000μS; error = ±10%;
- Stimulus Direction: Positive, Negative, and Two-Way.
Audio and Visual Stimulation Parameters
A. Normal Mode (Acoustic Stimulation) Parameters
- Stimulation Type: Short Tone, Pure Tone, White Noise.
- Stimulation Frequency: 0.1Hz ~100Hz, error = ±10%;
- Target Signal Probability: 5% ~ 100%, error = ±10%;
- Stimulation Model (for Short Tone and Pure Tone only): Left Ear, Right Ear, Both Ears, Alternate Ears.
- Short Tone Only
- Short Tone Stimulation Phase: Sparse Wave, Dense Wave, Alternating Waves;
- Maximum Short Tone Intensity: approx. 130dB;
- Pure Tone only
- Maximum Pure Sound Intensity: approx. 120dB;
- Pure Tone Sound Frequency: 250Hz ~7kHz, error = ±10%;
- White Noise only
- Maximum White Noise Intensity: approx. 100dB;
- Modulation Type: AM/FM
- Audio Stimulation Intensity: -10dB ~ 130dB HL (Hearing Level), error within ±10%;
- Carrier Frequency: 250Hz ~ 8000 Hz, error within ±10%;
- Modulation Frequency: 20 ~ 200 Hz, error within ±20%;
- Degree of AM: 0 ~ 100%, error within ±30%;
- Degree of FM: 0 ~ 30%, error within ±30%;
- AM/FM Phase Difference: 0 ~ 359 degrees, error within ±30%;
- Checkerboard Image
- Monitor can be set to display full-screen checkerboard image with alternating black-and-white tiles.
- Checkerboard display can be 4X3, 8X6, 16X12, 32X24, or 64X48.
- Half-screen checkerboard display:
- Left-half or right-half of screen: 2X3, 4X6, 8X12, 16X24, or 32X48 pattern,
- Upper or lower half of screen: 4X2, 8X3, 16X6, 32X12, or 64X24 pattern
- Quarter checkerboard display: 2X2, 4X3, 8X6, 16X12, or 32X24 checkerboard pattern.
- Horizontal Bar Grid Image
- Full-screen black-and-white horizontal bar image: 1X3, 1X6, 1X12, 1X24 and 1X48
- Left-half or right-half of screen only: 1X3, 1X6, 1X12, 1X24 and 1X48;
- Top or bottom half of screen only: 1X2, 1X3, 1X6, 1X12 and 1X24,
- Quarter screen display: 1X2, 1X3, 1X6, 1X12 and 1X24.
- Vertical Bar Grid Image
- Full-screen black-and-white alternating vertical bars: 4X1, 8X1, 16X1, 32X1, and 64X1
- Left half or right-half of screen only: 2X1, 4X1, 8X1, 16X1 and 32X1
- Top or bottom half of screen only: 4X1, 8X1, 16X1, 32X1 and 64X1
- Quarter screen display: 2X1, 4X1, 8X1, 16X1, and 32X1.
- Stimulation Frequency: 0.1Hz – 1Hz, error = ± 10 %;
- Target Signal Probability (P300 only): 5% ~ 100%, error = ± 10 %;
- Non-target signal 1 Probability (P300 only): 5% ~ 100%, error = ± 10 %;
- Non-target signal 2 Probability (P300 only): 5% ~ 100%, error = ± 10 %.
- Stimulus Frequency: 0.1Hz – 50Hz, error = ± 10 %;
- Stimulation Modes: Left Eye, Right Eye, Both Eyes, Alternate Eyes.
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