Infusion pump with air bubble detection and method for operating an infusion pump for air bubble detection

Abstract

An infusion pump has a sensor arrangement and an infusion line or a holding device with a holding region for an infusion line. An ultrasonic sensor and an imaging device with a camera are arranged on the outer circumference of the holding region of the holding device or on the outer circumference of the infusion line. At least the imaging device is configured to detect gas bubbles and, preferably, to detect particles in an infusion fluid. At least the imaging device is preferably configured to detect a size and to detect a change in the size of the gas bubbles and/or to detect movement of the gas bubbles, and preferably particles. The ultrasonic sensor preferably performs an initialization by detecting the infusion fluid in the infusion line and, if necessary, detecting gas bubbles.

Dependencies are inferred from the claim text.