Seal forming portion, pad and cushion for a patient interface and method of manufacturing

US11529484B2 · kind B2 · utility

Assignee

• ResMed Pty Ltd · AU

Inventors

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

Key dates

• Filing date: Dec 20, 2018
• Grant date: Dec 20, 2022
• Expiry date: Mar 13, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/0222
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

It is discloses a patient interface comprising a seal forming portion, a pad, and a cushion. The seal forming portion may comprise a base surface and a plurality of fibers fixed to and extending away from said base surface for contacting a patient's skin. The cushion may comprise at least along a portion of the circumference a first structure having an elongate section joined with at least one end section oriented substantially perpendicular or at an angle to the elongate section. A first end A of the elongate section may be connected or connectable to a frame member. The end section may be provided at an opposing second end B of the elongate section. The pad may comprise a resilient foam material layer with the seal forming portion. The pad may be adapted to be connected to the cushion.