DS7A & DS7AH Stimulator
The DS7A is a high-voltage constant current stimulator, suitable for percutaneous stimulation of nerves or muscles with short pulses.
The DS7AH is a high-power version offering up to 1 A output on very short pulses (< 200 µs), ideal for deep nerves or large muscles.
DS7A & DS7AH Stimulator features
- Variable output current: up to 100 mA (DS7A) or 1 A (DS7AH)
- Compliance voltage up to 400 V
- Selectable pulse durations: DS7A: 50 µs to 2 ms; DS7AH: 50 µs to 200 µs
- Toggle polarity control (± or automatic alternating)
- Flexible triggering: front button, positive TTL or external footswitch; TTL output on BNC
- CE & FDA 510(k) certified medical device for human use
Technical characteristics of the DS7A & DS7AH Stimulator
Caractéristique | Valeur |
---|---|
Output current | DS7A: 0-100 mA; DS7AH: 0-1 A |
Pulse duration | DS7A: 50 µs – 2 ms; DS7AH: 50 µs – 200 µs |
Compliance voltage | Up to 400 V |
Polarity | Switch +ve, -ve or automatic alternation |
Current control | 10-turn potentiometer with x1/x10 switch |
Internal protection | Energy limitation (time × current × frequency) |
Trigger inputs | TTL BNC, front button, footswitch |
LED indicators | Power, Trigger received, Out-of-compliance, Too-fast, Polarity |
Certification | CE, FDA 510(k), IEC 60601-1 |
Dimensions (W×H×D) | 225 × 100 × 255 mm |
Weight | ~3 kg |
Power supply | Mains 100-240 VAC, ~12 VA |
Interfaces | 4 mm touch-proof connectors (output) |
Applications
- Transcutaneous stimulation of peripheral nerves and muscles
- Studies of reflexes (H-reflex, F-waves), pain, cognitive neuroscience
- Activation of large muscles or deep stimulation via DS7AH
- Use in clinical physiology or research into vigilance and neuromodulation
Documentation
DS7A & DS7AH Stimulator brochure
PDF file – 1376.7 ko