公开(公告)号：US20220241542A1

公开(公告)日：2022-08-04

申请号：US17615144

申请日：2020-05-29

Applicant: Sedana Medical Limited

Inventor： Ronald Martin Farrell ,  Pauric Carey ,  Harry Hennessy

IPC: A61M16/10 ,  A61M16/00 ,  A61M16/08 ,  A61M16/16 ,  A61M16/18

Abstract: An active and passive humidification device for mounting in a patient ventilation circuit comprises a housing having a ventilator chamber and an associated patient chamber communicating with the ventilator chamber through a gas permeable filter mounted between the ventilator chamber and the patient chamber. This filter forms a passive humidifier which is operable in use to capture and reflect heat and moisture received from a patient back to the patient. The ventilator chamber has a ventilator connector port for connection to a ventilator. The patient chamber has a patient connector port for connection to a patient breathing tube. A humidity generating device is integrated in the housing and is operable to control the humidity of air delivered from the patient chamber through the patient connector port to a patient and provides for active humidification of the breathing air. The humidity generating device, an air flow sensor, a temperature sensor and a ceramic heater plate of the device are all connected to an associated controller which regulates operation of the humidity generating device and heater plate to maintain air at a desired temperature and humidity for delivery from the patient chamber to a patient.