For over 55 years, Millar has been at the forefront of medical research by collaborating with researchers worldwide who rely on Millar technology, including pressure catheters and pressure-volume loop systems, to make measurements and decisions with unprecedented accuracy, precision and confidence.
Millar can combine seamless electrode integration with admittance technology across various medical devices and applications. Providing clear, continuous, real-time insights into patient conditions, these sensors elevate the precision of medical diagnostics and treatments. From pressure-volume loop studies to new device development, Millar’s comprehensive offerings connect life sciences to OEM, empowering researchers and medical device developers with unprecedented accuracy and confidence in their data-driven decisions.
Millar has decades of history leveraging conductance for real-time volume measurement. Conductance utilizes the concept of electrical conductance to gauge volume changes. Admittance, the innovative successor to conductance, relies on the principle of electrical impedance to measure changes in volume within biological structures. It assesses the capacitance of tissues or chambers and translates these electrical properties into volume measurements to provide an enhanced insight into real-time volume. This technology has a number of unique, direct applications in the cardiovascular space.
Additionally, there are approximately 80 publications related to admittance, with around 20 of those focused on large animal studies. This extensive body of research highlights the effectiveness and applicability of admittance technology in various physiological contexts, particularly in cardiovascular research and clinical practice.
Millar uses both conductance and admittance to track changes in blood volume through electrical properties. Conductance catheters measure circuit conductance in the ventricle, while admittance assesses tissue capacitance, both coupled with high-fidelity pressure readings for full PV loop analysis in real time.
