Research Products

Pressure and Pressure-Volume Loop Systems

Millar develops research catheters to facilitate cardiovascular and hemodynamic assessment, primarily serving university research labs, contract research organization, pharmaceuticals, and biotechnology companies. Through our high-fidelity pressure and pressure-volume catheters, electrophysiology catheters and data acquisition systems, we ensure quality results are achieved for your applications (e.g. ventricular blood pressure, heart failure, dP/dt studies, PV loop analysis).

Catheter options include tip configuration, length and sensor and electrode placement to meet a variety of catheter research needs utilizing small mice to domestic livestock. 

Research Product Applications

Pressure ApplicationsPressure-Volume Applications
  • Left Ventricular Blood Pressure
  • Right Ventricular Blood Pressure
  • Cardiac dP/dt
  • Left Ventricular Contractility
  • Right Atrial Pressures
  • Venous Blood Pressure
  • Pulse Wave Analysis
  • Airway Pressures
  • Interstitial Tumor Pressures
  • Arterial Blood Pressure
  • Diastolic Dysfunction
  • End Diastolic Pressure
  • End Systolic Pressure
  • Fractional Flow Reserve
  • Intracranial Pressures
  • Rectal Pressures
  • Spinal Pressures


  • Baseline PV loop analysis
  • Occlusion PV loop analysis
  • Phenotyping gene manipulations
  • Cardiac hypertrophy
  • Cardiac failure
  • Cardiovascular remodeling
  • Toxicology
  • Pharmacology (rapid drug screening)
  • Cardiac resynchronization therapy
  • Surgical interventions
  • Ischemia/reperfusion studies
  • Vascular occlusions
  • Transgenic manipulation




Research Products

Pressure-Volume Systems

pressure volume systemsMillar Pressure Volume Systems simultaneously and continuously measure high-fidelity left ventricular pressure and volume. These signals can be plotted against each other in real time, generating the characteristic left ventricular pressure-volume (PV) loops. More on Pressure-Volume


Mikro-Tip® Pressure

Mikro-Tip Pressure Catheter

Millar Mikro-Tip pressure catheters are available in 1 F to 7 F with single and multiple high-fidelity pressure sensors and straight or curved tips with some models featuring a pigtail. Control units and accessories available. More on Mikro-Tip Pressure


PowerLab® Data Acquisition Systems

PowerLab Data Acquisition Systems for pressure-volume researchMillar offers powerful and flexible PowerLab Data Acquisition Systems for our pressure and pressure-volume catheters. PowerLabs are available with LabChart Pro and additional modules for specific applications (e.g., blood pressure, PV loop, ECG). The new 35 series PowerLabs offer many benefits over the previous models, including cleaner signal recording, cleaner bench space and a smaller carbon footprint. More on PowerLabs


Electrophysiology Catheters

electrophysiology cathetersMillar electrophysiology (EP) catheters pace and record protocols from inside the heart or through the esophagus to determine the electrical properties of the atrium and ventricle. EP catheter models can be used in mice as small as 2.5 grams to measure parameters such as conduction times, refractory periods or His potentials. More on Electrophysiology Catheters


Submit a Form  or call 832.667.7000 for more information on the Millar research products or to purchase.