In medical device manufacturing, particularly in catheter and tubing production, precision is not a luxury; it’s a regulatory and performance necessity. Wall thickness and concentricity directly impact flow rates in the tube, flexibility, durability, and patient safety. Yet many manufacturers still rely on intermittent, offline inspection methods that leave blind spots in quality control and introduce unnecessary risk. Enter real-time ultrasonic measurement, a modern solution for today’s most demanding medical extrusion lines.