Vapotherm, Inc.
BREATH SENSING WITH REMOTE PRESSURE SENSOR

Abstract:

Devices and methods are provided herein for sensing and monitoring of patient breathing during high flow respiratory therapy. A nasal cannula having a sensing lumen and remotely-located pressure sensor is provided herein for breath sensing that provides an accurate and clear signal while high flow rates of breathing gas are delivered from the nasal cannula. Condensation can be removed from the sensing lumen by applying a constant, pulsatile, or burst flow of purge gas. The breath sensing apparatus can be integrated in a respiratory system with a breathing gas source or can be packaged as a separate device capable of adapting to a variety of systems.