US 11,633,562 B2Granted

Compact oronasal patient interface

AssigneeResMed Pty Ltd

InventorsAaron Samuel Davidson, Michael Kassipillai Gunaratnam, Susan Robyn Lynch, Milind Chandrakant Raje, Gary Christopher Robinson, Steven John Lubke, Gregory Scott Smart, Philip Rodney Kwok, Rupert Christian Scheiner

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Abstract

A breathing arrangement includes a patient interface, at least one inlet conduit, and a headgear assembly. The patient interface includes a mouth covering assembly including a cushion structured to sealingly engage around exterior of a patient's mouth in use, a nozzle assembly including a pair of nozzles structured to sealingly engage within nasal passages of a patient's nose in use, and a flexible element connecting the mouth covering assembly and the nozzle assembly. The at least one inlet conduit is structured to deliver breathable gas into at least one of the mouth covering assembly and the nozzle assembly for breathing by the patient. The headgear assembly is removably connected to at least one of the mouth covering assembly and the nozzle assembly so as to maintain the mouth covering assembly and the nozzle assembly in a desired position on the patient's face.

Claims28

Dependent claims

A breathing arrangement for use between a patient and a blower to deliver a pressurized breathable gas to the patient for treatment of sleep disordered breathing, the breathing arrangement comprising:

a patient interface including:
a cushion structured to sealingly engage with the patient's mouth and the patient's nose without forming a seal on a nasal bridge region of a patient's face,
a chamber formed at least partially by the cushion and configured to receive a flow of the pressurized breathable gas, the chamber configured to provide the pressurized breathable gas to the patient's airways through the patient's nose and the patient's mouth,
a frame removably connected to an anterior surface of the cushion, the frame including:
1) at least one anchor with a fixed end connected to the frame and a free end opposite the fixed end, the free end having a larger width than the fixed end, and 2) an inlet conduit having one end configured to deliver the pressurized breathable gas to the chamber and a second end configured to connect with an air delivery tube, the at least one anchor and the inlet conduit being configured to be connected to and disconnected from the cushion as a unit, and
an anti-asphyxia valve including at least one opening and a membrane configured to move between 1) a first position where the at least one opening is in communication with atmosphere and 2) second position where the at least one opening is blocked by the membrane when the pressurized breathable gas is supplied;
and
a headgear assembly configured to support the patient interface in a sealed position on the patient's face, the headgear assembly including:
an attachment mechanism including an opening surrounded by a rim configured to removably interlock with the at least one anchor, the attachment mechanism configured to fit between the free end and the frame, and
a first strap end connected to the attachment mechanism to connect the headgear assembly to the patient interface.

7 more elements

a patient interface including:
a cushion structured to sealingly engage with the patient's mouth and the patient's nose without forming a seal on a nasal bridge region of a patient's face,
a chamber formed at least partially by the cushion and configured to receive a flow of the pressurized breathable gas, the chamber configured to provide the pressurized breathable gas to the patient's airways through the patient's nose and the patient's mouth, and
a frame connected to an anterior surface of the cushion, the frame including 1) at least one anchor with a fixed end connected to the frame and a free end opposite the fixed end, the free end having a larger width than the fixed end, and 2) an inlet conduit having one end configured to deliver the pressurized breathable gas to the chamber and a second end configured to connect with an air delivery tube;
and
a headgear assembly configured to support the patient interface in a sealed position on the patient's face, the headgear assembly including:
an attachment mechanism removably attached to the at least one anchor, the attachment mechanism including,
an opening configured to removably receive the free end, wherein the free end is configured to extend through the opening,
a first crossbar, and
a second crossbar spaced apart from the first crossbar;
a first strap end connected to the first crossbar of the attachment mechanism, and
a second strap end connected to the second crossbar of the attachment mechanism, wherein:
the frame includes an anti-asphyxia valve including at least one opening and a membrane configured to move between 1) a first position where the at least one opening is in communication with atmosphere and 2) second position where the at least one opening is blocked by the membrane when the pressurized breathable gas is supplied,
the at least one anchor and the inlet conduit being configured to be connected to and disconnected from the cushion as a unit,
the cushion includes a silicone construction and is configured to seal around the patient's lips, and
the cushion is structured to sealingly engage with an underside of the patient's nose.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/578,597Filed 19 Jan 2022 · continuation
Priority: 31 Dec 2003
Published: US 2022/0134041 A15 May 2022
Granted: 25 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

A61M 16/0622
With face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure:…
A61M 16/0057
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: pumps therefor
A61M 16/06
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: respiratory or anaesthetic masks
A61M 16/0611
Means for improving the adaptation of the mask to the patient: with a gusset portion

Family

Application60/533,214Us provisional application · filed 31 Dec 2003
Application11/474,415Parent of this continuation · filed 26 Jun 2006
Application12/700,878Parent of this continuation · filed 5 Feb 2010
US 7,658,189 B2Parent of this continuation · filed 9 Feb 2010
Application14/948,920Parent of this continuation · filed 23 Nov 2015
US 9,220,860 B2Parent of this continuation · filed 29 Dec 2015
Application16/864,302Parent of this continuation · filed 1 May 2020
US 10,646,677 B2Parent of this continuation · filed 12 May 2020
Application17/035,831Parent of this continuation · filed 29 Sep 2020
US 10,806,886 B2Parent of this continuation · filed 20 Oct 2020
US 2022/0134041 A1Pre-grant publication · published 5 May 2022
US 11,229,762 B2Parent of this continuation
US 2006/0237017 A1Published application
US 2010/0132717 A1Published application
US 2016/0074613 A1Published application
US 2020/0254207 A1Published application
US 2021/0008317 A1Published application
US 11,633,562 B2This patent

From the US filing history. Foreign family members aren’t listed.