Model g.Estim PRO - Cortical Stimulator
g.Estim PRO is a constant current, bi-phasic electrical stimulator intended to stimulate neural tissue during functional brain mapping procedures prior to cortical resections in the vicinity of essential cortex. The device is CE certified (Europe) and FDA-cleared (USA) for use in human patients for investigations like electrical cortical stimulation (ECS) mapping. Therefore, g.Estim PRO must be used by medically trained and qualified personnel within a medical environment. g.Estim PRO has an applied part of type BF with connectors for bipolar stimulation electrodes (anode and cathode). The device is controlled by a computer via an USB connection. It also has digital outputs for synchronization with other devices. A hand-switch allows you to manage stimulation manually. A foot-switch can also be used to immediately enable/disable stimulation.
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Details
g.Estim PRO includes an impedance check and measures the actually applied stimulation current and voltage for verification purposes. With its 80V compliance voltage, it is perfectly suited for use with standard as well as high-impedance electrodes, and is able to produce the required stimulation current. For closed-loop experiments, a g.USBamp or g.HIamp is used with g.HIsys to record EEG/ECoG data, perform real-time analysis and control the g.Estim PRO for cortical stimulation (for research purposes; requires the g.Estim PRO research software upgrade).
g.ESTIM PRO is available with an application programming interface (API) that allows to tune stimulation parameters on the fly with g.HIsys and a g.tec biosignal amplifier. Users are able to record from a brain area and to extract parameters and based on the result drive accordingly the brain stimulation.
Product Highlights
- Delivers bi-phasic constant current pulses
- Application programming interface (API) to configure stimulation parameters on the fly
- Stand-alone device that can be controlled in real-time from a computer system
- Can send triggers to other devices for synchronization
- Includes electrode impedance check and stimulation current monitoring
- CE-certified and FDA-cleared medical device for use in human patients
Technical Specifications
Stimulus current output | ± 0.2 – 15 mA (±10% or 50µA whichever greater) |
Phase shape | rectangular |
Phase duration | 0.1 - 1.0 ms in 10 µs increments (± 10% or ± 20 µs whichever greater) |
Pulse rate | 2 – 100 pulses/second in 0.1 increments (±10%) (Pulse onset interval from 500 ms down to 10 ms) |
Train duration | 1 pulse – 20 seconds |
Power supply | 2 x 9 V battery, USB – connection |
Certification and Standards | IEC 60601-1, IEC 60601-1-2, IEC 60601-2-40, IEC 62304, IEC 62366, ISO 14971 |
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