Constant current, multimode stimulator for direct cortical electrical stimulation.
SGM-STIM-2 stimulator is designed to be used for direct electrical stimulation of cerebral cortex focal regions for motor, sensory and language functions. Constant current types of stimulus are used to deliver controllable amount of electrical charge, regardless of the impedance of tissue between electrodes.
Stimulator can be used as a stand-alone device with full local functionality, or can be connected and remotely controlled from IOM system or remote computer.
| 1.3.1 STIMULUS OUTPUT | |
|---|---|
| Current range | 0 - 5 mA in 0.2 mA steps / 5 – 40 mA in 1 mA steps |
| Pulse width | 100 - 1000 microseconds square wave (100 µs step) |
| Maximum output voltage | 50 V |
| Number of electrodes | 9 |
| 1.3.2 STIMULUS PULSE RATES | |
|---|---|
| Pulse or group rate | 0.1 to 8.0 per second, in 0.1 steps |
| Burst selections | Number of pulses – 1 to 9 |
| Interstimulus time | 1 - 10 ms in 0.1 ms steps |
| 1.3.3 TRIGGER FACILITIES | |
|---|---|
| Manual | Push button mounted on the front panel |
| Auto | |
| External | TTL compatible positive edge logic signal |
| Trigger output | Positive TTL compatible signal 500 µs wide |
| 1.3.4 OTHER | |
|---|---|
| Mechanical dimensions | 250x263x85 mm |
| Weight | 2 kg |
| Power | 100 – 240 V @ 50-60 Hz |
| Rating | 24.4-31.7 VA |
| Startup time | 30 sec |
