This Multi-Channel Swivel features five low dead volume channels for dual-probe microdialysis, plus another channel for infusion. The fluid paths are lined to protect sensitive neurotransmitters. The swivel includes a counter-balanced arm to remove all vertical forces from the animal. The electronic control unit mounts to the vertical portion of the counter-balanced arm and is powered by a 12 VDC adapter.
The practical limit on the number of lines in a traditional fluid swivel is two; each additional channel seal set adds to the torque required by the animal to turn the swivel as it moves about its cage. Swivels with three or more channels are typically impossible for a rodent to turn and often have large dead volumes and problems with cross-channel leakage.
Harvard/Instech’s Multi-Channel Swivel senses the rotation demanded by the animal and, with a small motor, drives the swivel core to follow the animal. Unlike other switch-based systems, this swivel features a proportional control, allowing fine continuous movement that further reduces stress on the animal. The torque felt by the animal is similar to that of an Instech single channel swivel. This power-assisted proportional control technology was first introduced in 2000 in Instech’s patented Swivelless Swivel™, but is now applied to a swivel that can be used with conventional stationary caging of the researcher’s choice. Please contact Customer Service for pricing, availability and other configurations.