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ECT Unit – Electroconvulsive Threshold Detection
A constant-current stimulator for electroconvulsive seizures in mice and rats. 0 to 99 mA with impedance checked before every shock, ear-clip electrodes as standard and corneal electrodes for the 6 Hz model.
What is the ECT Unit?
A constant-current stimulator for inducing electroconvulsive seizures in mice and rats. Current is set from 0 to 99 mA, and feedback circuitry holds it constant against changes in electrode contact. Animal impedance is measured and displayed before the shock, with a warning when it is too high to deliver the set current.
Ear-clip electrodes come standard, for running several animals quickly. Corneal electrodes are an option, and with them the unit runs the 6 Hz corneal model used in drug-resistant seizure work.
Key Features
- Current 0 to 99 mA in 1 mA steps, ±2%
- Pulse width 0.1 to 0.9 ms, frequency 1 to 299 pulses/s
- Shock duration 0.1 to 9.9 s
- Impedance read-out 0 to 199 kΩ before stimulation
- Analog output to an oscilloscope or acquisition system
- Optional Biphasic Unit that inverts every other pulse, with maximum frequency then 100 Hz
- Any electrode type can be connected; custom electrodes on request
Why constant current
With a constant-voltage stimulator, the delivered current changes with electrode contact from animal to animal, and the measured threshold moves with it. Holding the current fixed is what makes a seizure threshold comparable across a group.
Where it is used
Seizure threshold testing, anticonvulsant screening and the 6 Hz psychomotor seizure model. Also general screening of neurotropic compounds and studies of CNS depressant or stimulant drug effects.
Which seizure model is the study built on?
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Technical Specifications
| Catalog Number | 57800 |
| Species | Mouse, rat |
| Current | 0 to 99 mA in 1 mA steps, ±2%, constant pulses |
| Pulse Width | 0.1 to 0.9 ms in 0.1 ms steps, ±1% |
| Pulse Rise and Fall Time | 20 µs |
| Pulse Voltage | 3 kV max |
| Frequency | 1 to 299 pulses/s in 1 pulse/s steps, ±1% |
| Shock Duration | 0.1 to 9.9 s in 0.1 s steps, ±1% |
| Output Resistance | 0 to 30 kΩ at max current |
| Impedance Display | 0 to 199 kΩ, 1 kΩ resolution |
| Power | 115/230 V, 50/60 Hz, 100 W |
| Warranty | 12 months, plus 12 months on product registration |
Part Numbers
| 57800 | ECT Unit, complete with standard accessories |
| 57800-001 | Pulse generator |
| 57800-002 | Set of auricular electrodes |
| 57800-320 | Set of felt pads for auricular electrodes |
| E-AU 041 | USB pen drive with instruction manual |
| 57800-003 | Set of corneal electrodes (option) |
Applications
- Electroconvulsive seizure threshold determination
- 6 Hz corneal psychomotor seizure model
- Anticonvulsant and neurotropic compound screening
- CNS depressant and stimulant drug effects
- Endocrine studies of the nervous system and hypophysis
Research on Epilepsy and Seizures
Explore All ProductsECT Unit Research Publications
Published seizure studies using the Ugo Basile 57800 ECT Unit, including electroconvulsive threshold testing and the 6 Hz psychomotor seizure model in mice and rats.
Ear-clip or corneal electrodes?
Ear-clip (auricular) electrodes come standard and are quick for running several animals. Corneal electrodes are an option. The 6 Hz psychomotor seizure model is run with corneal stimulation.
Why does impedance matter?
The unit drives a set current, but only up to its voltage limit. With poor electrode contact, the set current cannot be delivered. The ECT Unit measures impedance before the shock and warns when it is too high.
Can the stimulus be recorded?
Yes. An analog output connects to an oscilloscope or a data acquisition system.
What does the Biphasic Unit do?
It sits between the ECT Unit and the animal and inverts every other pulse. With it, the maximum frequency drops to 100 Hz.
Is it available in Israel with local support?
Yes. NBT distributes Ugo Basile in Israel. Installation, training and service are local.
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