Breathable gas apparatus with humidifier

US9227035B2 · kind B2 · utility

Assignee

• ResMed Corp. · AU

Inventors

• Geoffrey Crumblin · Parramatta, AU
• Michael Thomas Janiak · Sydney, AU
• Dan Kao · Perth, AU
• Barton John Kenyon · Sydney, AU
• Perry David Lithgow · Batemans Bay, AU
• Rohan Neil Primrose · Sydney, AU
• Jim Saada · Sydney, AU
• John Michael Snow · Chatswood, AU
• Duncan Lovel Trevor-Wilson · Sydney, AU
• Alexander Virr · Sydney, AU
• Arthur Kin-Wai Yee · Sydney, AU

Key dates

• Filing date: Jul 29, 2014
• Grant date: Jan 5, 2016
• Expiry date: Jul 29, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/753
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A humidifier has a base unit with an engagement face that is configured to interface with a flow generator. The humidifier also has a tank configured to be removably received by the base unit and hold a volume of liquid. The tank has a side wall with an air inlet. The humidifier further has an air flow passage configured to receive an air connector of the flow generator at the engagement face of the base unit. The air flow passage is axially offset from a tank inlet. In addition, a cross-section of the airflow passage inlet and a cross-section of the tank air inlet are substantially perpendicular to a horizontal plane. In addition, a flexible face seal is positioned at an end of the air flow passage. An end of the face seal is configured to abut a side wall of the tank that includes the tank inlet when the tank is received in the base unit.