Abstract: A cuff for an air delivery conduit includes a first end portion provided to a tube and a second end portion adapted to engage a tubular connector. The second end portion includes an entry surface that is curved or chamfered along its length to provide a lead in for inserting the second end portion onto the tubular connector in use. The entry surface provides an internal diameter that is larger than an external diameter of the tubular connector.
Type:
Grant
Filed:
August 28, 2009
Date of Patent:
February 27, 2018
Assignee:
RESMED LIMITED
Inventors:
Nathan John Row, Nicholas Andrew Earl, Alexander Virr
Abstract: Devices and systems provide methods of detecting a severity change in respiratory insufficiency (RI) or chronic obstructive pulmonary disease (COPD) condition of a patient. In an example embodiment, a detection monitoring device determines one or more severity change indicators based on a measure of supplied pressure or other representative measure determined by the device. The supplied pressure may optionally be determined during pressure treatment that satisfies a target ventilation. The supplied pressure or representative data may be compared to one or more thresholds that are selected to represent a change in the condition of the RI or COPD patient such as an exacerbation of a prior condition. Results of the comparisons may trigger one or more warnings or messages to notify a patient or physician of a pending change to the patient's RI or COPD condition so that the patient may more immediately seek medical attention to treat the condition.
Type:
Application
Filed:
October 24, 2017
Publication date:
February 22, 2018
Applicant:
RESMED LIMITED
Inventors:
Klaus Schindhelm, David John Bassin, Glenn Richards
Abstract: A mask system for treating sleep disordered breathing, comprising headgear, a shell/cushion including a channel adjacent a front aperture, a frame, an elbow including at least one undercut on a proximal end, a retaining ring including a rear flange adapted to be retainably insertable in the channel of the shell/cushion, and a front flange adapted to retainably engage with the at least one undercut of the elbow.
Type:
Grant
Filed:
August 2, 2013
Date of Patent:
February 20, 2018
Assignee:
ResMed Limited
Inventors:
Michael Andrew Jones, Amal Shirley Amarasinghe, Timothy Tsun-Fai Fu, Perry David Lithgow, Jim Saada, Fiachra Marcus Sweeney
Abstract: A vent assembly includes at least one vent having a first end configured to face atmosphere and a second end opposite the first end, and a central portion provided between the first and second ends including a substantially cylindrical cross-sectional shape, wherein the second end includes a counter bore.
Abstract: A mouth cushion for a mask system includes a side wall, a membrane extending from the side wall and adapted to form a continuous seal around an exterior of a patient's mouth in use, and at least one support strut or rib provided to the side wall. The at least one support strut or rib is at least partially determinative of a deflection characteristic of the mouth cushion.
Type:
Grant
Filed:
April 21, 2015
Date of Patent:
February 20, 2018
Assignee:
RESMED LIMITED
Inventors:
Rupert Christian Scheiner, Scott Alexander Howard, Gregory Scott Smart, Christopher Scott Skipper, Steven John Lubke, Timothy Shawn Nelson
Abstract: A CPAP device includes a flow generator including an outlet, a humidifier including an inlet, and an adaptor connector between the outlet of the flow generator and the inlet of the humidifier. The connector includes a flexible and conformable sealing portion that is movable to accommodate misalignment.
Type:
Grant
Filed:
July 13, 2016
Date of Patent:
February 20, 2018
Assignee:
RESMED LIMITED
Inventors:
Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
Abstract: A patient interface for delivery of a supply of pressurized air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilizing structure attachable to the frame member.
Type:
Grant
Filed:
July 26, 2013
Date of Patent:
February 13, 2018
Assignee:
RESMED LIMITED
Inventors:
Alicia Kristianne Wells, Craig David Edwards, Shiva Kumar Shanmuga Sundara, Murray William Lee, Kirrily Michele Haskard, Anthony Paul Barbara, Stewart Joseph Wagner, Chia Ik Tan, Frederick Arlet May, Lachlan Richard Goldspink, Martin Forrester, Ralph Jourdan
Abstract: Devices and systems provide methods for detecting cardiac signals from head or facial biopotential sensors. In one embodiment, a facial biopotential signal is measured by a set of sensors. A processor derives a cardiac signal from the facial biopotential signal. Optionally, heart rate is detected from the cardiac signal. Heart rate variability may be determined and evaluated by the processor to generate warnings or messages from the evaluation. One or more head or facial biopotential electrodes for measuring the facial biopotential signal may be integrated in or at a contact surface of head support structures such as a headgear support or respiratory treatment mask. In some such embodiments a controller of a respiratory treatment apparatus may serve as a cardiac signal detector by processing the facial biopotential signal from the sensors and may make control adjustments or generate warnings based on an evaluation of detected signals.
Type:
Grant
Filed:
November 14, 2011
Date of Patent:
February 13, 2018
Assignee:
ResMed Limited
Inventors:
Steven Paul Farrugia, Darius George Chapman
Abstract: An over-pressure control device prevents over-pressure conditions during the delivery of pressure treatment therapy to a patient with a respiratory treatment apparatus. The device may prevent delivered pressure from exceeding a first maximum pressure threshold. The device may also prevent the delivered pressure from exceeding a second maximum pressure threshold when the delivered pressure exceeds another pressure threshold for a period of time. In some embodiments, the second maximum pressure threshold may be lower than the first maximum pressure threshold. In an example embodiment, a set of comparators are configured to compare pressure with a maximum pressure threshold and to control a reduction in the pressure if the pressure exceeds the maximum pressure threshold. The set may also be configured to compare the pressure with a pressure threshold and to control reduction in the maximum pressure threshold if the pressure exceeds the pressure threshold for a period of time.
Type:
Grant
Filed:
June 2, 2009
Date of Patent:
January 30, 2018
Assignee:
ResMed Limited
Inventors:
Christopher Kingsley Blunsden, Ronald James Huby, Graham Stephen Cutcliffe, Jack Wei Cheng, Zhuo Ran Tang
Abstract: A headgear for use with a mask includes a first strap being configured to engage a back of a patient's head and extend on either side of the patient's parietal bone behind the patient's ears and assume, in use, a substantially circular or oval shape. At least a portion of the first strap is substantially inextensible. The headgear also includes at least one second strap configured to removably connect the first strap to the mask. The second strap may be more extensible than the first strap. At least a portion of the first strap is self-supporting such that the headgear maintains a three dimensional shape when not in use. The substantially inextensible portion of the first strap is constructed to resiliently return to a predetermined shape when not in use. The arcuate region includes a first portion that may be arranged to align substantially parallel with a top of the patient's head and a second portion being arranged to align substantially to a rear surface of the patient's head.
Type:
Grant
Filed:
January 21, 2015
Date of Patent:
January 30, 2018
Assignee:
ResMed Limited
Inventors:
Justin John Formica, Anthony Paul Barbara, Brent James Dravitzki, Philip John Gunning
Abstract: A swivel elbow for a mask assembly includes an elbow adapted to be provided to the mask assembly and a swivel detachably connected to the elbow. The elbow includes a plurality of spaced apart rings that provide a controlled clearance between the elbow and an interior surface of the swivel.
Type:
Grant
Filed:
June 5, 2006
Date of Patent:
January 30, 2018
Assignee:
RESMED LIMITED
Inventors:
Geoffrey Crumblin, Craig David Edwards, Daniel Robert Judson, Bryony Louise Marshall
Abstract: An apparatus for humidifying a flow of pressurized, breathable air includes varying a first pressure of the flow of breathable gas to vary a level of thermal engagement between the conductive portion of the reservoir and the heater plate, varying a height of the variable portion varies a level of thermal engagement between the conductive portion of the reservoir and the heater plate, use of a humidifier reservoir base component with a maximum water capacity substantially equal to the predetermined maximum volume of water of the humidifier reservoir or the use of intersecting inlet and outlet axes.
Type:
Grant
Filed:
March 14, 2014
Date of Patent:
January 9, 2018
Assignee:
ResMed Limited
Inventors:
Andrew Roderick Bath, Justin John Formica, Matthew Rolf Harrington, Joseph Samuel Ormrod, Luke Andrew Stanislas, Hargopal Verma