The Fi-Wi Opto-electric Cannulas are opto-electric devices designed to be chronically implanted on the skull of an animal.
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The Fi-Wi Opto-electric Cannulas are opto-electric devices designed to be chronically implanted on the skull of an animal. The base of the receptacle is smaller to facilitate the implantation. The optical fiber is connectorized to a LED, that brings the light directly into a specific brain area, and to 1 to 4 electodes recording the activity of the brain. The LED activation is done by the headstage and the delivering light intensity could be modulated all along the experiment (0-100%, DC to 1000 Hz, different pulsed shapes). The position of the fiber and the electrodes is customized with a 100 µm spacial precision. The electrode are in tungsten and the impedance could be chosen between 0.1 and 10 MΩ.
The cannula has an electrical connector to hold the fiberless and wireless headstage in place. Between experiments, the headstage can be easily disconnected from the cannula and reconnected at the appropriate time.
