Low cost CPAP flow generator and humidifier assembly

US8739780B2 · kind B2 · utility

Assignee

• ResMed Corp. · AU

Inventors

• Zhuo Ran Tang · Sydney, AU
• Cem Tarakci · Sydney, AU
• John Michael Snow · Chatswood, AU
• Kenneth Lee · Jacksonville, US
• Steven Paul Farrugia · Parramatta, AU
• Dmitri Anotolievich Doudkine · Chatswood, AU
• Ian Malcolm Smith · Hornsby, AU

Key dates

• Filing date: Aug 15, 2006
• Grant date: Jun 3, 2014
• Expiry date: Nov 1, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/3584
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A CPAP device wherein humidification detection and/or control is performed by a microprocessor of the CPAP device without requiring a separate humidification control chip. The microprocessor may also control the flow generator motor and the flow generator display. Further, the microprocessor may include code to prevent ‘brown-out’, and/or to detect the availability (connection and/or operability) of the humidifier. Humidifier detection may be carried out using power consumption or temperature sensor signal analysis, e.g., facilitated by use of a pull-up resistor.