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We have developed a passive Electrical Rotary Joint usable for electrophysiological experiments that can be combined with fiber-optic rotary joints (1x1 or 1x2) to bring light to and/or from the sample.
To facilitate in vivo experiments combining the light stimulation and electrophysiological recordings in optogenetics experiments, we have developed a passive low torque hybrid rotary joint with a number of electrical channels and one optical channel.
The Assisted Fiber-optic & Electric Rotary Joint is electrically driven as it senses and follows the tethered animal’s rotations. It detects the torsion of the optical cable during the animal movements and releases it with a very high sensitivity.
Doric Assisted Electrical Rotary Joint comes with 12 electrical contacts and a 6 mm inner diameter through hole to pass fiber-optic patch cords or fluid tubings. Compared to our passive Electrical Rotary Joint, the motor Assisted Electrical Rotary Joint is effectively frictionless, thus allowing its use with animals of small weight like mice.