Patient interface, seal forming structure and method of manufacturing of the same

US12409289B2 · kind B2 · utility

Assignee

• ResMed Pty Ltd · AU

Inventors

• Bernd Christoph Lang · Bogen, DE
• Andreas Kirchberger · Sinzing, DE
• Johannes Nickol · Munich, DE
• Jens Rothfuss · Unterschleißheim, DE
• Johann Sebastian Burz · Germaringen, DE
• Robert Eibl · Annaberg-Buchholz, DE
• Christian Bayer · Penzberg, DE

Key dates

• Filing date: Feb 10, 2022
• Grant date: Sep 9, 2025
• Expiry date: Nov 20, 2043

Classification

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

Abstract

The present specification is directed a method manufacturing a patient interface for treatment of sleep disordered breathing using air pressure by delivery of air to a patient's airway. The method includes locating a shell, a first sub section of a seal forming structure, and a first section of the seal forming structure in a tool. The first sub section includes a groove. The first section is constructed from a thermoformable material. The method further includes introducing a moulding material to the tool and overmolding the shell, the first sub section, and the first section. The moulded material forms a second sub section of the seal forming structure that connects the first sub section to the shell and fully encloses the first section within the groove.