Mask sizing tool using a mobile application

US11857726B2 · kind B2 · utility

Assignee

• ResMed Pty Ltd · AU

Inventors

• Timothy Tsun-Fai Fu · Parramatta, AU
• Denis Butyletskiy · Sydney, AU
• Michiel Kooij · Sydney, AU
• Benjamin Peter Johnston · Sydney, AU
• Robert James Hudson · Champaign, US

Key dates

• Filing date: Mar 9, 2021
• Grant date: Jan 2, 2024
• Expiry date: Aug 31, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H10/60
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Apparatus and methods automate selection of patient interface(s) according to their size, such as with processing in a processor(s) or in a server(s). Image data captured by an image sensor may be received. The captured image data may contain facial feature(s) of an intended user of the patient interface. The facial features may be captured in association with a predetermined reference feature of known dimension(s). The user's facial feature(s) and the reference feature may be detected in the captured image data. Image pixel data of the image may be processed to measure an aspect of the detected facial feature(s) based on the reference feature. A patient interface size may be detected from standard patient interface sizes based on a comparison between the measured aspect of the facial feature(s) and a data record relating sizing information of the standard patient interface sizes and the measured aspect of the facial feature(s).