Electrophysiology (EP) Catheters

Electrophysiology Research

Millar electrophysiology (EP) catheters can be used for standard electrophysiology studies by applying pacing and recording protocols from inside the heart (intracardiac) or through the esophagus (transesophageal), which determines electrical properties of the atrium and ventricle. 

Cardiac electrophysiology research studies are a proven method for characterizing the electrical phenotype of transgenic mice, as well as for determining and diagnosing various detrimental heart conditions.

EP Catheter Standard Parameters

  • Conduction times
  • Refractory periods
  • His potentials
  • Sinus and atrioventricular nodal properties
  • Inducibility of abnormal heartbeats

Millar Electrophysiology Catheters


  • 1.1 F (0.36 mm)
  • Reusable eight-electrode catheter
  • For use with transgenic mice as small as 2.5 grams


  • 1.1 F
  • Introducing lumen
  • Reusable eight-electrode catheter


  • 1.6 F
  • 12.5 cm
  • Reusable eight-electrode catheter

Click for more electrophysiology catheter details

EPR Catheter System Hardware and Software Options

The EPR-800 catheter is designed to connect to commercially available amplifiers, stimulators and data acquisition hardware. More…


Learn more about catheter best practices and troubleshooting




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For more information on these products or to purchase, call our exclusive distributor ADInstruments at 1 719.576.3970 or complete the form below.