Patent 11559654 was granted and assigned to Fisher & Paykel Healthcare on January, 2023 by the United States Patent and Trademark Office.
A device is provided that humidifies breathing gas. The device has a chamber with an inlet and an outlet. A chemical heater is positioned within the chamber and a trigger activates the heater. The chamber can be a conduit with an inner wall and an outer wall with a reservoir defined therebetween. The chemical heater can be positioned within the reservoir.