NZ748308A - Humidification of respiratory gases - Google Patents

Humidification of respiratory gases

Info

Publication number
NZ748308A
NZ748308A NZ748308A NZ74830809A NZ748308A NZ 748308 A NZ748308 A NZ 748308A NZ 748308 A NZ748308 A NZ 748308A NZ 74830809 A NZ74830809 A NZ 74830809A NZ 748308 A NZ748308 A NZ 748308A
Authority
NZ
New Zealand
Prior art keywords
humidifier
duty ratio
delivery tube
air delivery
flow
Prior art date
Application number
NZ748308A
Inventor
Nathan John Row
Andrew Roderick Bath
Ian Malcolm Smith
Alexander Virr
Original Assignee
ResMed Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Priority to NZ755806A priority Critical patent/NZ755806A/en
Publication of NZ748308A publication Critical patent/NZ748308A/en

Links

Abstract

A flow generator configured to supply the flow of breathable gas and a humidifier configured to humidify the flow of breathable gas. The humidifier has a water reservoir and a heater configured to heat water in the water reservoir. The respiratory apparatus further includes an air delivery tube with a heating element and a controller in communication with both the flow generator and the humidifier. The air delivery tube is configured to receive the humidified flow of breathable gas from the humidifier. The controller is configured to coordinate a humidifier heater duty ratio with an air delivery tube heating element duty ratio so that the humidifier and the air delivery tube heating element do not draw power simultaneously. The controller also applies a 100% maximum duty ratio when below a given heater element threshold and a fixed duty ratio when above the threshold, the fixed duty ratio being determined based on a target evaporation rate.
NZ748308A 2008-03-06 2009-03-05 Humidification of respiratory gases NZ748308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ755806A NZ755806A (en) 2008-03-06 2009-03-05 Humidification of respiratory gases

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US3431808P 2008-03-06 2008-03-06
US4211208P 2008-04-03 2008-04-03
US8436608P 2008-07-29 2008-07-29
NZ73169109 2009-03-05

Publications (1)

Publication Number Publication Date
NZ748308A true NZ748308A (en) 2020-01-31

Family

ID=69184846

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ748308A NZ748308A (en) 2008-03-06 2009-03-05 Humidification of respiratory gases

Country Status (1)

Country Link
NZ (1) NZ748308A (en)

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 9 YEARS UNTIL 05 MAR 2022 BY JAMES + WELLS

Effective date: 20200806

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 05 MAR 2023 BY ANAQUA SERVICES

Effective date: 20220218

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 05 MAR 2024 BY ANAQUA SERVICES

Effective date: 20230221