SwivElectra

SwivElectra Commutator

Swivelectra

SwivElectra™ Commutators

This is an excellent choice for gathering neural data from a wide range of animal subjects, from free-swimming aquatic, all the way up to ambulatory primate.
This unique line of Ultra-Low-Torque commutators enable researchers a wide range of formats for recording EEG or neural signals in studies where subjects are:

  • Awake and active
  • Sedated or asleep
  • Tethered or motionless
  • Moving freely within an enclosed environment
  • Involved in a protocol using introduction of fluid

Wires connect the commutator to electrodes implanted in, or affixed to, the subject. The commutator swivels freely with each animal movement, as a result prevents lead wires from tangling. When mounted in (or above) the ceiling of the testing chamber it permits continuous full rotation in any horizontal direction. Thanks to the minimally perceptible torque, the  SwivElectra™ commutators afford subjects freedom of movement while affording researchers the peace of mind that data is reliably captured.

Features & Benefits In Brief

  • Gold rings and palladium brushes deliver the highest quality signal and data transfer.
  • Infinite rotation is assured with Ultra-low Torque
  • Ultra-low Inertia reduces strain on subject
  • Wide range of Input/Output connectors available to enable compatibility with most systems
  • 100% U.S. manufacturing means maximal quality control, fast delivery and ability to accommodate requests for customization

General specifications:

  • Torque Rotation is achieved with the use of extremely free running bearings
  • Current is rated at 1 amp per ring.
  • Noise levels ≈ .005 ohms change in contact resistance. [When a “run-in” period is used, this level of resistance is usually reduced. Some “run-in” is generated prior to shipment. To achieve the best results “run-in” should be completed in the actual environment where it will be used. Dual contacts on gold slip rings allow for minimal noise in the transmission of data.]
  • The SwivElectra™ is compatible with most fluid swivels through a central cannula tube.
  • SwivElectra™ commutators are available in sizes ranging from 1 to 36 channels. The output connections on this commutator are sub D receptacles. Connectors are available in 9 pin, 15 pin, 25 pin, and 44 pin formats.

When ordering please specify the:

  • Number of channels desired
  • Type of connector required to attach to your equipment
  • Size of cannula tube needed, if applicable, for fluid dispensing
  • Length of cable, and the type of connector, required to attach to your equipment

Large SwivElectra Torque
Unit of measure       per channel          25 channel          36 channel

in oz                       .05517944615        1.4346656           1.9864600614
in lbs                      .00344871794         .0896666            .12412384584
Nm                         .0003896531           .0101309808      .0140275116

Note: Torque is approximate individual units may differ

SwivElectra™ 1-to-9 Channels (#4-TBC-9S)

The Smallest production Unit is the 9 Channel SwivElectra™ Commutator is the smallest production unit, Yet it has lowest torque resistance. The extremely free-moving rotation is especially well-suited to small animals, including mice and a variety of free-swimming aquatic and amphibian species. Two female 9-pin Amphenol Type Receptacles are provided on the 4-TBC-9S.

SwivElectra™ 1-to-10 Channels (#4-TBC-10S)
The Smallest production Unit is the 9 Channel SwivElectra™ Commutator is the smallest production unit, Yet it has the lowest torque resistance.Well suited for small animals, with its free moving rotation. This includes mice and a variety of free-swimming aquatic and amphibian species. Two female 15 pin d sub Type Receptacles are provided on the 4-TBC-10S.

Small SwivElectra Torque
Unit of measure       per channel          9 channel          10 channel

in oz                       .05155555555         .464                     .5155555555
in lbs                      .00322222222         .029                    .0322222222
Nm                         .00036406222         .0.00327656       .0036406222

Note: Torque is approximate individual units may differ

SwivElectra™ with Liquid Tube Cannula (4-TBC-9-LT)
Made from the larger 4-TBC-25 commutator, and operating in the same manner, this model is configured with a center-mounted cannula that enables introduction of fluid during stimulation and/or recording. The 4-TBC-9-LT commutator also includes the same 9-pin connectors as the 4-TBC-25 unit.

SwivElectra™ 18-to-25 Channels (4-TBC-25)
This model, which operates in the same manner as the 4-TBC-9S configuration, offers more channels to deliver enhanced data acquisition and transmission. This is a larger unit than the 4-TBC-9S yet torque increase is minimally perceptible compared to the 9-pin configuration. Two 25-pin receptacles are provided on the 4-TBC-25.

SwivElectra™ with Liquid Tube Cannula (4-TBC-25-LT)
This product configuration includes a cannula in the 4-TBC-25 for ease of introducing fluids.

4-TBC-36 SwivElectra™ (26 to 36 Channels)
This version of the product offers a 44-pin connector to accommodate 26 to 36 Channels.

 

Research papers related to use of the Crist SwivElectra Electrical swivel

 

 

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