MEASUREMENT OF THE HYDRODYNAMIC CHARACTERISTICS OF ARTIFICIAL HEART VALVES BY PHOTOCHROMIC VISUALIZATION

摘要

We propose using photochromic visualization to measure the hydrodynamic characteristics of artificial heart valves under simulated physiological flow conditions. The photochromic visualization method is based on generation of colored markers in the flow behind the artificial heart valve in a time equal to 10~-6 to 10~-9 sec. We use high-power laser radiation as the source for generating the colored markers.