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Implantable Wireless Recording Systems

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Triangle BioSystems International has developed a 90-day implantable neural recording headstage system that allows researchers to continuously and simultaneously obtain biopotential data from up to 5-32 electrodes to an external receiver in real time. No longer do experiments have to be constrained by head mounted or wired test subjects to the recording system.

The complete system is comprised of an implantable inductively powered wireless headstage transmitter, RF signal receiver/baseband demodulator, power supply and a silicone electrode connection kit. With an effective range of 1 meter, this system provides a wireless connection between the implanted electrodes to the data acquisition recording system.

This implantable headstage unit is implanted in a rat’s peritoneal cavity using a minimally invasive surgical procedure. Additionally, this headstage can be used concurrently with our stimulation, tethered or multiplexed neural recording headstages. This system utilizes TBSI’s custom ASIC technology and packaging, wireless powering and proprietary radio design to provide reliable functionality in an implantable package that is both small and light weight. This design includes the neural preamplifier circuitry to create an extremely compact and powerful transmitter with high data rate and band-width.

 

The complete system is comprised of a wireless headstage transmitter with an integrated rechargeable battery, RF signal receiver/baseband demodulator, power supply, and basic interfacing cables.

Features:

  • Wireless recording: 5 to 32 channels
  • Reliable wireless operations across 1 meter
  • 90-day package life
  • Compatible with 12Mohm or lower electrode impedances
  • Factory configurable total system gain (800x standard)
  • DAQ integrated solutions available - NeuroWare© software certified
  • Inductive powered for 24/7 recording
  • Typical bandpass filtering per channel: .8Hz to 7kHz
  • 50kHz sampling rate per channel
  • Weight: 5.2/6.3 grams
  • Dual radio systems available
  • Analog signal and TTL event inputs on receiver (requires internal DAQ)

Benefits and Advantages:

  • Recordings registered and/or stimulation delivered in a manner that is as close as possible to natural behavior
  • Ideal solution for recording and stimulation both in the cortical and peripheral nervous system.
  • Focus on one or multiple areas with spike-bandwidth on every channel up to 32 channels
  • Non-stop recording for long duration unsupervised experiments and high-throughput
  • Absence of signal contamination and lack of behavioral distraction due to tether movement.
  • Save costs (typically 5k USD per unit) and labor required to manually supervise tethered animals
  • Fast setup time and save costs on shielding and noise troubleshooting
  • Up to 3 wireless recording systems and 16 stim systems simultaneously in open field, >3 record systems possible in operant chambers with radio frequency shielding.
  • Connect directly to wide variety of electrodes for low-profile, highly robust chronic recording systems.

Configurations:

Universal

  • Wireless operations up to 1 meters
  • Implant equipped with magnetic on/off switch technology
  • Dual radio systems available
  • 800x standard system gain for optimal signal to noise ratio (factory configurable)
  • Available with digital output to NeuroWare, analog output or both
  • Video tracking available with optional OptiMap software
  • NeuroWare and OptiMap datasets easily exportable to MatLab, NeuroExplorer, or EDF

W5 System

  • Provides 5 single-ended inputs for recording biopotentials (5mV pk-pk input range).
  • Headstage dimensions: 29 x 23 x 12, weighs just 5.2 grams
  • Each input channel records 50 ksamples/sec, enabling .8Hz-7kHz bandwidth

W16 System

  • Provides 15 single-ended inputs for recording biopotentials (4mV pk-pk input range).
  • Headstage dimensions: 29 x 23 x 12, weighs just 5.7 grams
  • Each input channel records 50 ksamples/sec, enabling .8Hz-7kHz bandwidth

W32 System

  • Provides 31 single-ended inputs for recording biopotentials (4mV pk-pk input range).
  • Headstage dimensions: 31 x 25 x 12, weighs just 5.9 grams
  • Each input channel records 50 ksamples/sec, enabling .8Hz-7kHz bandwidth

Custom

Engineering

Do you have a need for a customized solution based on one of our product brands? Triangle BioSystems is available to provide custom solutions to assist you with your special projects. We will work closely with you and your technical team to understand your requirements, suggest a solution, and develop the hardware that will allow you to meet your research needs.

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