Abstract

A combined one way inspiratory valve and expiratory release valve assembly is provided for controlling air flow in a respiratory treatment system. The valve assembly comprises a housing comprising a valve inlet, a valve outlet and at least one vent opening, and a diaphragm sealingly connected to the housing at an outer circumference of the diaphragm, wherein the diaphragm divides the housing into; a) an upstream portion, which is in fluid communication with the valve inlet, and b) a downstream portion which is in fluid communication with the valve outlet. The diaphragm has a circular, oval, elliptical or stadium shape. An inner portion of the diaphragm defines a one way inspiratory valve. An outer portion of the diaphragm defines an expiratory release valve. A method of characterising vent flow in a respiratory treatment system which includes such a valve is also described.

IPC Classes  ?

• A61B 5/087 - Measuring breath flow

Abstract

A patient interface including a seal-forming structure having a mouth portion that forms at least part of the mouth plenum and is configured to seal around the patient's mouth and a nasal portion that is configured to seal with the patient's nares. The nasal portion includes a nasal plenum positioned to receive pressurized gas from the mouth plenum. The seal-forming structure also includes a clip configured to connect the mouth plenum to the nasal plenum and act as a conduit for the flow of the pressurized gas from the mouth plenum to the nasal plenum. The clip includes a mouth portion end configured to engage the mouth portion, a nasal portion end configured to engage the nasal portion, and a pair of wings protruding from the nasal portion end into an interior of the nasal plenum so that the wings engage an interior surface of the nasal plenum.

IPC Classes  ?

• A61M 16/06 - Respiratory or anaesthetic masks
• A61F 5/56 - Devices for preventing snoring
• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61M 16/20 - Valves specially adapted to medical respiratory devices

Abstract

A patient interface is disclosed. The patient interface has a plenum chamber and a seal forming structure arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways. The patient interface further comprises a heat and moisture exchanger (HME) located within the plenum chamber. The HME comprises a flexible heat and moisture exchange material and a retaining structure formed from a pliable material provided around an outer perimeter of the heat and moisture exchange material. The retaining structure comprises at least one snap fit feature configured to engage, in use, at least one complementary snap fit feature provided to an interior of the plenum chamber; and/or the retaining structure is an interference fit with an interior surface of the plenum chamber. Also disclosed is an HME comprising a flexible heat and moisture exchange material and a retaining structure formed from a thermoplastic.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 16/08 - Bellows; Connecting tubes
• A61M 16/10 - Preparation of respiratory gases or vapours

Abstract

A patient interface including a plenum chamber, a first seal-forming structure for forming a seal around the patient's mouth, and a second seal-forming structure for forming a seal around the patient's nares. The patient interface further includes at least one stopper rib disposed in the cavity of the plenum chamber spaced apart from the first seal-forming structure in a rest position. The first seal-forming structure configured to contact the at least one stopper rib in an operational position. The at least one stopper rib configured to oppose compression of the first seal-forming structure in an anterior direction. The second seal-forming structure is not configured to contact the at least one stopper rib.

IPC Classes  ?

• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 16/08 - Bellows; Connecting tubes

Abstract

A respiratory therapy system for providing continuous positive air pressure (CPAP) to a patient may include a flow generator for generating a supply of breathable gas, a sensor to measure a physical quantity while the breathable gas is supplied, and a computing device. The computing device may be configured to: receive sensor data that is based on measured physical property of the supply of breathable gas; control the flow generator to adjust a property of the supply of breathable gas; display a question and a plurality of selectable responses; receive a first input selecting one of the selectable responses; and display a coaching response corresponding to the selected response.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• G16H 40/40 - ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
• G16H 40/63 - ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation

Abstract

A patient interface includes a plenum chamber pressurisable to a therapeutic pressure, and a seal-forming structure constructed and arranged to seal with a region of a patient's face surrounding an entrance to a patient's airways. The seal-forming structure is constructed and arranged to maintain the therapeutic pressure in the plenum chamber throughout a patient's respiratory cycle in use. The patient interface also includes a positioning and stabilizing structure configured to hold the seal-forming structure in a therapeutically effective position on a patient's head. The positioning and stabilizing structure includes a rear strap arranged to contact an occiput of the patient's head. The rear strap is constructed from a first material is arranged to contact a temporal region of the patient's head, and a second material arranged to contact the occiput of the patient's head. The second material is silicone.

IPC Classes  ?

• A61M 16/06 - Respiratory or anaesthetic masks

Abstract

A system for providing continuous positive air pressure therapy is provided. The system includes a flow generator, a sensor, and a computing device. The computing device is configured to control operation of the flow generator based on sensor data. The computing device is further configured to display, on a display device, one or more questions relating to demographic and/or subjective feedback; responsive to displaying the one or more questions, receive one or more inputs indicating answers to the one or more questions; transmit the answers to a remote processing system; receive, from the remote processing system, settings determined based on the transmitted answers; and adjust control settings of the system based on the received settings.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation

Abstract

A patient interface for delivery of a supply of pressurised 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 stabilising structure attachable to the frame member.

IPC Classes  ?

• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 16/08 - Bellows; Connecting tubes

Abstract

A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The humidifier has a water container which is adapted for drop in assembly in the humidifier base so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61F 5/56 - Devices for preventing snoring
• A61M 16/16 - Devices to humidify the respiration air

Abstract

A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The humidifier has a water container which is adapted for drop in assembly in the humidifier base so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61F 5/56 - Devices for preventing snoring
• A61M 16/16 - Devices to humidify the respiration air

Abstract

A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The humidifier has a water container which is adapted for drop in assembly in the humidifier base so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61F 5/56 - Devices for preventing snoring
• A61M 16/10 - Preparation of respiratory gases or vapours
• A61M 16/16 - Devices to humidify the respiration air

Abstract

A flow generator and humidifier construction is described, including a flow generator (50) construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis (64) forming first and second muffler volumes and a venturi-shaped connection portion (137), and a metal/polymer composite material blower enclosure (70) which suppresses noise from the blower (90). The humidifier (150) has a water container (698, 699,700) which is adapted for drop in assembly in the humidifier base (602) so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid (648).

IPC Classes  ?

• A61M 16/16 - Devices to humidify the respiration air
• A61F 5/56 - Devices for preventing snoring
• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A62B 7/00 - Respiratory apparatus
• B29C 39/12 - Making multilayered or multicoloured articles
• B29C 41/22 - Making multilayered or multicoloured articles
• B29C 43/20 - Making multilayered or multicoloured articles
• B29C 45/16 - Making multilayered or multicoloured articles
• B29C 63/00 - Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor

Abstract

A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The humidifier has a water container which is adapted for drop in assembly in the humidifier base so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61F 5/56 - Devices for preventing snoring
• A61M 16/10 - Preparation of respiratory gases or vapours
• A61M 16/16 - Devices to humidify the respiration air

Abstract

A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The humidifier has a water container which is adapted for drop in assembly in the humidifier base so as to align with air inlet and outlet passages and is retained in sealing relationship with the air flow passages by engagement of the humidifier lid.

IPC Classes  ?

• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
• A61F 5/56 - Devices for preventing snoring
• A61M 16/10 - Preparation of respiratory gases or vapours
• A61M 16/16 - Devices to humidify the respiration air