HUMIDIFICATION WITH HME AND HEATED AIR DELIVERY TUBE

• Main Authors: BATH, Andrew Roderick, EBERL, Lorenz, SHORT, Skye Kimberley, STANISLAS, Luke Andrew, LAU, Wei Liang
• Format: Patent
• Language: English; French; German
• Published: 10.08.2022
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

A CPAP system for providing air at positive pressure for respiratory therapy to a patient includes an RPT device configured to supply a flow of air at a therapeutic pressure, a patient interface forming a plenum chamber pressurizable to the therapeutic pressure, an air delivery tube configured to pass the flow of air at the therapeutic pressure from the RPT device to the patient interface, a heat and moisture exchanger (HME) constructed and arranged to retain moisture from a flow of expiratory air from the patient, wherein retained moisture from the HME is returned to the flow of air for humidification, a controllable heater configured and arranged to heat the HME and/or heat incoming air to the HME, and a controller configured to adjust heating of the controllable heater to adjust the moisture returned from the HME to the flow of air for humidification.