Optoelectric Cannula - multiple electrodes
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Our optoelectric cannulas combine an optical fiber for optogenetics and/or photometry with 1 to 16 electrodes for electrophysiology recordings in freely-moving animals. The electrodes are connected via a 18 pins connector to Doric electrophysiology tethered headstage. We offer tungsten wire electrodes with diameter of 25, 35, 50 microns for single unit, multi units or field potential recording. Custom configurations are available upon request, likeĀ the type of electrodes, the number of optical fibers and the dispositionĀ of the optical fibers andĀ electrodes.
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DESCRIPTION Impedance
(Ohm)RECOMMENDED USE Ā CODE Ā 1x8 linear array of 35 Āµm tungsten wire with 45 deg angled tip Ā 0.2 to 0.8 M LFP L8-W35-A45 Ā 50 Āµm tungsten wire with flat tip Ā 0.1 to 0.5 M LFP W50-FLT Ā 50 Āµm tungsten wire with 45 deg angled tip Ā 0.1 to 0.5 M Ā LFP W50-A45 Ā 75 Āµm tungsten wire with tapered tip Ā 0.1 M Ā LFP 0.1M-75 Ā 0.5 M Ā LFP 0.5M-75 Ā 1.0 M Ā Multi unit 1.0M-75 Ā 1.5 M Ā Multi unit 1.5M-75 Ā 2.0 M Ā Single and Multi unit 2.0M-75 Ā 2.5 M Ā Single and Multi unit 2.5M-75 Ā 3.0 M Ā Single unit 3.0M-75 Ā 5.0 M Ā Single unit 5.0M-75 -
Dimensions 9 x 9 x 10 mm Mass 0.8 gr Connector Omnetics NPD-18-DD-GS connector Optical connector 1.25 mm zirconia ferrule -
The light propagation into brain tissue will vary with the optical fiber type and the light source parameters.Ā It can be visualizedĀ in thisĀ Application NoteĀ (the French version is availableĀ here).
Description Drawing Code Note Flat Tip 
FLT Conical Tip 
C45
C60
Rounded tip thickness: ~0.1x to 0.2x core diameter
Standard angles: 45Ā°,Ā 60Ā°
Other angles on request (max 60Ā°)
Taper Tip 
TAPERĀ
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