Patent ID: 11896770
Assignee: AUT VENTURES LIMITED
Field: Medical technology (Instruments)
Classification: CPC A  C | IPC A  C

Claim 0:
1. A respiratory humidifying apparatus comprising:
a moisture exchange fabric positioned so that a respiratory system inspiration and expiration airflow is in contact with the moisture exchange fabric, the moisture exchange fabric comprising:
a substrate fabric, and
a temperature-responsive polymer having lower critical solution temperature (LCST) of between 25° C. and 39° C. bonded to the substrate fabric;

a heater for heating the moisture exchange fabric;
a power supply for supplying power to the heater; and
a controller controlling the supply of power to the heater such that during inspiration when the moisture exchange fabric is heated and moisture is added to the incoming air such that humid air is provided to a user and during expiration the moisture exchange fabric extracts moisture from the air.