Reflect the excitation or inhibition state of the cerebral cortex, accurately provide detection and evaluation of EEG consciousness state, and meet clinical needs
Product Specification:
| Electrical parameters of EEG electrode slices | ||||
| Test items | Excitation conditions | Range | Accuracy | Test time |
| Impedance | Sinusoidal alternating current 100uAp p - 5% 10Hz+10% |
0-20KΩ | ≤1KΩ 2%±10Ω >1KΩ 3% |
>60s |
| Imbalance | DC input resistance ≥10MΩ |
±1200mV | ≤100mV 1%±10Ω >100mV 2% |
60-90s |
| Noise | RC bandpass 0.15-100Hz |
0-2000µV (PP) | ≤150µV ±7.5µV >150µV 5% |
60-360s |
| Current | DC current 200nA±5% | ±1200mV | ≤100mV 1%±1mV >100mV 2% |
more than 8h |
| Defibrillation | Capacity 10µF±5% Power 200V±2% |
±1200mV | ≤100mV 1%±1mV >100mV 2% |
5, 15, 25, 35s |
AC Impedance:
Excitation conditions: sinusoidal alternating current 100μAp-p±5%, 10Hz±10%
Range: 0-20KΩ, accuracy: ≤10KΩ 1%±10Ω, >10KΩ 3%, test time: >60s
DC offset voltage:
Excitation conditions: DC input resistance ≥ 10MΩ
Range: ±1200mV, accuracy: ≤100mV1%±0.5 mV, >100mV1%, test time: 60-90s
Compound Offset Instability and Internal Noise:
Excitation conditions: RC bandpass 0.15-100Hz
Range: 0-2000μV(pp), accuracy: ≤150μV ±7.5μV, >150μV5%, test time: 60-360s
Bias Current Tolerance:
Excitation conditions: DC current 200nA±5%
Range: ±1200mV, accuracy: ≤100mV1%±0.5mV, >100mV1%, test time: more than 8h
Defibrillation overload recovery:
Excitation conditions: Capacity 10μF±5%, power 200V±2%
Range: ±1200mV, accuracy: ≤100mV1%±0.5mV, >100mV1%, test time: 5, 15, 25, 35s.
Characteristics of EEG electrodes
1. Reflect the excitation or inhibition state of the cerebral cortex, accurately provide detection and evaluation of EEG consciousness state, and meet clinical needs;
2. The brain electrode does not contain latex and uses imported conductive adhesive and high-quality 3M double-sided adhesive, with low impedance and good adhesion;
3. Through biocompatibility testing, there is no cytotoxicity, skin irritation, or sensitization reaction;
4. The product has been clinically validated for 7 years, with sensitive measurement and precise numerical accuracy;
5. Good product compatibility
6. Strong anti-interference ability, the sensor has a certain degree of anti-interference ability against the electromagnetic signals of other electrical equipment.
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