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Thomas Tetrode Micro Matrix System

The worlds smallest and most lightweight single tetrode system

Neuroscience Products > Accessories > Amplifiers > Chronic Recording Devices > Data Acquisition Systems > Eye Tracking Systems > Microdrives > Microelectrodes > Microinjection Systems> Optogenetic Products > Primate Training Systems > Screws > Software > Stereotaxic Instruments > Cell & Tissue Media > Rodent Products Medical Products Electrochemical Products

Thomas Tetrode Micro Matrix System

The worlds smallest and most lightweight single tetrode system

The Thomas Tetrode Micro Matrix is a small and lightweight microdrive system for electrode and tetrode recordings. The system consists of a single miniaturized microdrive system, which is equipped with a Tetrode electrode or single a core microelectrode. A four channel preamplifier and a precision motor is integrated in the single drive system shown in figure 1.

The Thomas Micro Matrix is also available for the use with Electrodes.

Key features:

  • High precision & quality “Made in GERMANY” by Thomas RECORDING
  • Axial resolution better than 1μm, x-y-Positioning with a grid or xyz manipulator
  • Patented rubber-tube drive, no hysteresis, slick or free motion due to patented rubber tube drive (avoids drawbacks of cable, direct or hydraulic driven systems)
  • Flexible electrode travel range by chassis extension
  • Variable speed range from 0…250μm/s, higher velocity on request
  • No 50/60Hz noise pickup from the environment
  • No electrode connection cables free in air!
  • Integrated 4 channel tetrode preamplifiers
  • Custom made solutions for each recording application
  • Stable long-term recordings with thin microelectrodes for hours
Technical Data
Electrode travel:10.000µm
Preamplifier:4 channel / 1 channel
Drive principle:Patented Thomas rubber tube drive

The new microdrive system has even more advantages in contrast to competitors products:

  1. Each tetrode/electrode is completely shielded against noise pickup from the environment
  2. The patented rubber tube drive does not cause any slick or free motion like cable or hydraulic or thread rod driven microdrive systems
  3. Adaptation to different electrode travel distances for cortical or deep brain recordings
  4. Modular system
  5. Networkable software to control one recording setup with up to 16 tetrodes from different workstations by more than one neuroscientist; 
  6. System uses thin microelectrodes with high recording quality (e.g. Thomas electrodes or tetrodes)
  7. Low price
  8. Relatively small size and weight
  9. Easy setup and many features more.

The Thomas Tetrode Micro Matrix is a very lightweight and flexible drive solution for Thomas microelectrodes and tetrodes. It is a modular microdrive concept. One can mount multiple of these drives simultaneously on a recording chamber like shown in figure 2 or just one drive like shown in figure 3.

It is possible to adapt the Thomas Tetrode Micro Matrix to other stereotaxic instruments. Please do not hesitate to contact us for a custom-made adaptation of the Thomas Tetrode Micro Matrix System to your special recording setup!

Figure 1&2: Multiple Thomas Tetrode Micro Matrix drives mounted on one recording chamber

Figure 3&4: A single Thomas Tetrode Micro Matrix mounted on a recording chamber



[1] Eckhorn R., Thomas U. A new method for the insertion of multiple microprobes into neural and muscular tissue, including fiber electrdoes, fine wires, needles and microsensors Journal of Neuroscience Methods, 49 (1993) 175-179

Questions? Please don’t hesitate contacting us!

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