Implantable Telemetry System

Implantable Rat Telemetry System

The Millar Telemetry System is the new standard in wireless, implantable telemetry technology to measure high-fidelity physiological signals in rats > 175 grams (and other small animals e.g. guinea pigs).  The system allows for the measurement of true high-fidelity ventricular and arterial pressure, sympathetic nerve activity (SNA), biopotentials (i.e., ECG, EMG, EEG) and tissue oxygen.

The rat telemetry system offers researchers the ability to improve data quality in basic cardiovascular research, safety pharmacology studies and toxicology studies. Data can be recorded for longer periods of time and in conditions unhindered by anesthesia or restraint. Additional benefits include reduced handling induced stress artifact and lab maintenance.

The Cohousing feature now allows the housing of up to two telemetered rats in one cage or allows one larger rat (>350g) to be implanted with two telemeters while retaining high quality, accurate recordings.  

The complete system requires the Telemeter, Configurator and SmartPad and integrates with any data acquisition system.

Telemetry System Benefits

Implantable telemetry system for wireless data

  • Replaces wires and cables
  • Enables long-term recordings
  • Enables monitoring in natural environments
  • Reduces handling induced stress artifact
  • Provides ability to use animals sequentially as their own controls or in multiple studies
  • Provides unsupervised round the clock measurements
  • Reduces the number of animals required
  • Reduces animal maintenance costs

Advanced Telemetry Technology

Digital data transmission and wireless inductive power supply and battery backup charging, enable 24/7 digital data collection from implanted telemeters in free-roaming conscious animals.

Traditional Telemetry vs. Millar Telemetry

 

Traditional Telemetry

Millar Telemetry

Signals Low fidelity pressure, temperature, activity,
low frequency biopotential
High-fidelity ventricular and arterial pressure, temperature, SNA, low and high frequency biopotential, tissue oxygen
Sampling Frequency 250 to 500 Hz Up to 2000 Hz
Transmission All transmitters send data on a single frequency Digital transmission offers up to 30 individual transmission bands
Animal size Mice, rats and larger Rats, guinea pigs (>175 g)
Housing arrangement Telemetered animals must be individually housed Can house up to two telemetered rats per cage with cohousing feature enabled
Recording range Up to 1 m Up to 5 m
Monitor duration Limited by battery life Continuous power, rechargable backup battery in vivo
Continuous data Limited by battery life True 24/7
Refurbishment Need to monitor battery state, refurbish when low No refurbishment waiting or cost, just recharge and continue
Output format Proprietary interface Standard analog voltage

 

Telemetry Products

Rat Telemeters

  • Rats larger than 175 g (and small animals e.g. guinea pigs)
  • Measures high-fidelity blood pressure, SNA (sympathetic nerve activity) and biopotentials (i.e., ECG, EMG, EEG)
  • Wireless battery backup recharging in vivo
  • Transmission range up to 5 m

Hardware

  • Configurator (TR190)
  • SmartPad (TR181)
  • PowerLab® Data Acquisition Systems

Accessories

  • Surgical tools
  • Training DVDs
  • Practice transmitters
     

Submit a Form  or call 832-667-7000 to learn more about how the Millar Rat Telemetry System can advance your research. Also, learn about the Mouse Telemetry System for biopotential studies.