Patient interface systems
First Claim
1. A mask system for respiratory therapy involving delivery of pressurized air to a patient, the mask system comprising:
- a patient interface shaped to form a seal with both a mouth of the patient and nasal airways of the patient without contacting a nasal bridge of the patient, including;
a flexible cushion shaped to form a seal with (i) the nasal airways using a nasal seal portion of the cushion, and (ii) the mouth of the patient using a mouth seal portion of the cushion, the nasal seal portion of the cushion and the mouth seal portion of the cushion comprising a same flexible material, the nasal seal portion of the cushion shaped to form a seal with the nasal airways at a portion of a nose of the patient that surrounds nares of the patient under the nose of the patient, the flexible cushion defining a plate-receiving aperture that is located at a front portion of the cushion that is opposite from a face-contacting portion of the cushion,a front plate that has a greater rigidity than the flexible cushion, the front plate being located within the plate-receiving aperture at the front portion of the flexible cushion, the front plate being molded to the flexible cushion at a perimeter of the front plate, the front plate and the cushion defining a breathing chamber, the front plate comprising a transparent window through which the mouth of the patient is visible when the patient interface is worn by the patient,a first headgear connector that is on a first side of the patient interface and positionable proximate to a first ear of the patient when the patient interface is worn by the patient, the first side being located between a top of the patient interface proximate the nose of the patient when the mask system is worn by the patient and a bottom of the patient interface proximate a chin of the patient when the mask system is worn by the patient, anda second headgear connector that is on a second side of the patient interface and positionable proximate to a second ear of the patient when the patient interface is worn by the patient, the second side opposing the first side; and
headgear shaped to secure the patient interface on a head of the patient in sealing engagement with the mouth and the nasal airways, the headgear adapted to connect to the first headgear connector and the second headgear connector.
4 Assignments
0 Petitions
Accused Products
Abstract
A patient interface structure for delivery of respiratory therapy to a patient includes a front plate configured to conform to the shape of the patient'"'"'s face; a mouth cushion defining a breathing chamber and provided to the front plate and configured to seal around the patient'"'"'s mouth; and a nasal cushion configured to seal the patient'"'"'s nasal airways. The nasal cushion is supported by the mouth cushion, does not contact a bridge of the patient'"'"'s nose in use, and extends at least partially into the breathing chamber. A patient interface system includes a patient interface structure and a patient interface structure positioning system configured to position, stabilize and secure the patient interface structure in sealing engagement with the patient'"'"'s face.
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Citations
27 Claims
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1. A mask system for respiratory therapy involving delivery of pressurized air to a patient, the mask system comprising:
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a patient interface shaped to form a seal with both a mouth of the patient and nasal airways of the patient without contacting a nasal bridge of the patient, including; a flexible cushion shaped to form a seal with (i) the nasal airways using a nasal seal portion of the cushion, and (ii) the mouth of the patient using a mouth seal portion of the cushion, the nasal seal portion of the cushion and the mouth seal portion of the cushion comprising a same flexible material, the nasal seal portion of the cushion shaped to form a seal with the nasal airways at a portion of a nose of the patient that surrounds nares of the patient under the nose of the patient, the flexible cushion defining a plate-receiving aperture that is located at a front portion of the cushion that is opposite from a face-contacting portion of the cushion, a front plate that has a greater rigidity than the flexible cushion, the front plate being located within the plate-receiving aperture at the front portion of the flexible cushion, the front plate being molded to the flexible cushion at a perimeter of the front plate, the front plate and the cushion defining a breathing chamber, the front plate comprising a transparent window through which the mouth of the patient is visible when the patient interface is worn by the patient, a first headgear connector that is on a first side of the patient interface and positionable proximate to a first ear of the patient when the patient interface is worn by the patient, the first side being located between a top of the patient interface proximate the nose of the patient when the mask system is worn by the patient and a bottom of the patient interface proximate a chin of the patient when the mask system is worn by the patient, and a second headgear connector that is on a second side of the patient interface and positionable proximate to a second ear of the patient when the patient interface is worn by the patient, the second side opposing the first side; and headgear shaped to secure the patient interface on a head of the patient in sealing engagement with the mouth and the nasal airways, the headgear adapted to connect to the first headgear connector and the second headgear connector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A mask system for respiratory therapy involving delivery of pressurized air to a patient, the mask system comprising:
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a patient interface shaped to form a seal with both a mouth of the patient and nasal airways of the patient without contacting a nasal bridge of the patient, including; a flexible cushion shaped to form a seal with (i) the nasal airways using a nasal seal portion of the cushion, and (ii) the mouth of the patient using a mouth seal portion of the cushion, the nasal seal portion of the cushion and the mouth seal portion of the cushion comprising a same flexible material, the nasal seal portion of the cushion shaped to form a seal with the nasal airways at a portion of a nose of the patient that surrounds nares of the patient under the nose of the patient, the flexible cushion being adapted to connect with an air delivery conduit, the flexible cushion defining a plate-receiving aperture that is located at a front portion of the cushion that is opposite from a face-contacting portion of the cushion, the cushion including a cradle wall that separates a nasal aperture through which the pressurized air is to be provided to the nasal airways from a mouth aperture through which the pressurized air is to be provided to the mouth, the cradle wall being shaped to contact a face of the patient between an upper lip of the patient and the nose of the patient, the cradle wall hanging below a top of the front plate and being structured so that a tip of the nose of the patient hangs below the top of the front plate, when the mask system is worn by the patient and the patient interface is viewed from in front of the patient, the flexible cushion including a single continuous sealing surface that forms part of the nasal seal portion of the cushion and part of the mouth seal portion of the cushion, the single continuous sealing surface of the flexible cushion lacking definition between the nasal seal portion of the cushion and the mouth seal portion of the cushion, a front plate that has a greater rigidity than the flexible cushion, the front plate being located within the plate-receiving aperture at the front portion of the flexible cushion, the front plate being molded to the flexible cushion at a perimeter of the front plate, the front plate comprising a transparent window through which the mouth of the patient is visible when the patient interface is worn by the patient, the front plate being free of a connection with an air delivery conduit, a first headgear connector that is on a first side of the patient interface and positionable proximate to a first ear of the patient when the patient interface is worn by the patient, the first side being located between a top of the patient interface proximate the nose of the patient when the mask system is worn by the patient and a bottom of the patient interface proximate a chin of the patient when the mask system is worn by the patient, and a second headgear connector that is on a second side of the patient interface and positionable proximate to a second ear of the patient when the patient interface is worn by the patient, the second side opposing the first side; and headgear shaped to secure the patient interface on a head of the patient in sealing engagement with the mouth and the nasal airways, the headgear adapted to connect to the first headgear connector and the second headgear connector.
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Specification