Method and device for administering a humidified aerosol to a patient interface

US11602608B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Gerhard Pohlmann · Meerbeck, DE
• Peter Iwatschenko · Geiselhöring, DE
• Jelena Pankalla · Hannover, DE

Key dates

• Filing date: Sep 17, 2018
• Grant date: Mar 14, 2023
• Expiry date: Dec 2, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2240/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method and device are used for administering a humidified aerosol to a patient interface by providing and guiding a first gas flow having a humidified aerosol, a second gas flow having humidified respiratory gases, and a liquid flow of a thermally balancing liquid, thermally balancing the first and second gas flow by parallel guiding the first and second gas flow such that the first and second gas flow are guided in a manner that they are at least partially surrounded by the liquid flow of the thermally balancing liquid, mixing the first and second gas flow to obtain enriched respiratory gases having the humidified aerosol, and administering the enriched respiratory gases to the patient interface. The method and the device avoid the administration of dry or re-dried powdered aerosols and unwanted accumulation of and blockage by powdered material. The device is useful in respiratory support of preterm infants.