Wire heated tube with temperature control system, tube type detection, and active over temperature protection for humidifier for respiratory apparatus

US8733349B2 · kind B2 · utility

Assignee

• ResMed Corp. · AU

Inventors

• Andrew Roderick Bath · Sydney, AU
• Donald Angus Richmond · Sydney, AU
• Nathan John Row · Sydney, AU
• Jianhua Zhu · Tangxia, CN
• Timothy Nicholas Shadie · Sydney, AU
• Ronald James Huby · Sydney, AU
• Ivan Teodor Dujmovic · Fawn Drive, AU

Key dates

• Filing date: Jul 30, 2010
• Grant date: May 27, 2014
• Expiry date: Oct 12, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/62
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A PAP system for delivering breathable gas to a patient includes a flow generator to generate a supply of breathable gas to be delivered to the patient; a humidifier including a heating plate to vaporize water and deliver water vapor to humidify the supply of breathable gas; a heated tube configured to heat and deliver the humidified supply of breathable gas to the patient; a power supply configured to supply power to the heating plate and the heated tube; and a controller configured to control the power supply to prevent overheating of the heating plate and the heated tube.