Supplemental gas delivery device for mask assembly
AssigneeResMed Limited
InventorAmal Shirley Amarasinghe
Life of this patent
Estimating the term…
Abstract
A supplemental gas delivery device is described for a mask assembly having at least one supplemental gas port, the at least one supplemental gas port including an aperture in communication with an interior of the mask assembly. The mask assembly may include an aperture communicating with an interior of the mask assembly, and a cannula for communicating with the supplemental gas port. The cannula is positioned to deliver supplemental gas adjacent to the patient's nares and/or mouth, to increase an efficacy of treatment for the patient by more directly applying the flow of supplemental gas to the patient's nares. An optional bridging portion may be included to provide a connection between supplemental gas port and the cannula.
Claims56
A supplemental gas delivery device for a mask assembly having a frame including a primary as delivery inlet in pneumatic communication with a primary source of pressurized gas to deliver the pressurized gas to a patient's airways and at least one supplemental gas delivery port, the at least one supplemental gas delivery port including an aperture in communication with an interior of the mask assembly to provide a flow of supplemental gas from a secondary source pneumatically separate from the primary source, the supplemental gas delivery device comprising:
- a bridging portion adapted to be insertable into the aperture of each at least one supplemental gas delivery port, the bridging portion including a connection portion to extend out of the aperture into the interior of the mask assembly when the bridging portion is inserted into the aperture;
- and
- at least one cannula having a first end and a second end, the first end having an opening and being adapted to communicate with the connection portion of the bridging portion, and the second end dimensioned and configured to be positioned adjacent to or within the patient's nares and/or mouth to direct the flow of the supplemental gas through the bridging portion and the at least one cannula to the patient's nares and/or mouth.
A mask assembly, comprising:
- a frame including a primary gas delivery inlet in pneumatic communication with a primary source of pressurized gas to deliver the pressurized gas to a patient's airways and at least one supplemental gas port, the at least one supplemental gas port including an aperture in communication with an interior of the mask assembly to provide a flow of supplemental gas from a secondary source pneumatically separate from the primary source;
- a bridging portion extending into the at least one supplemental gas port, the bridging portion including a connection portion extending out of the aperture in the supplemental gas port and into the interior of the mask assembly;
- and
- a cannula having a first end and a second end, the first end having an opening and being connected to the connection portion of the bridging portion, and the second end dimensioned and configured to be positioned adjacent to or within a nasal area and/or mouth area of a patient in use, wherein supplemental gas is deliverable through the bridging portion and through the cannula to the patient's nasal area and/or mouth area.
A mask assembly, comprising:
- a frame including a primary gas delivery inlet and a pair of supplemental gas ports, the pair of supplemental gas ports each including an aperture in communication with an interior of the mask assembly to provide a flow of supplemental gas;
- a pair of bridging portions, each bridging portion extending into the aperture of a respective one of the supplemental gas ports, the bridging portions each including a first portion having an outer diameter substantially equal to a diameter of the aperture, and a second portion having a diameter greater than the first portion, the first portion of the bridging portions each including a connection portion extending out of the aperture in the supplemental gas ports and into the interior of the mask assembly, the second portions having a shoulder interfacing with the supplemental gas ports on the outside of the mask assembly;
- and
- a pair of cannulas each having a first end and a second end, the first end having an opening and being connected to the connection portion of the bridging portions, and the second end dimensioned and configured to be positioned adjacent to or within a patient's nares and/or mouth in use, to maximize the flow of the supplemental gas through the bridging portion and the cannula to the patient's nares and/or mouth.
A mask assembly, comprising:
- a frame including a primary gas delivery inlet in pneumatic communication with a primary source of pressurized gas to deliver the pressurized gas to a patient's airways and at least one supplemental gas port, the at least one supplemental gas port including an aperture in communication with an interior of the mask assembly to provide a flow of supplemental gas from a secondary source pneumatically separate from the primary source to provide a flow of supplemental gas from a secondary source pneumatically separate from the primary source;
- and
- a cannula having a first end and a second end, the first end being insertable into the at least one supplemental gas port of a mask assembly, and the second end being positioned within the ask assembly and adjacent to or within a nasal area of a patient in use, wherein supplemental gas is deliverable through the cannula to the patient's nasal area.
A mask assembly, comprising:
- a frame including a primary gas delivery inlet in pneumatic communication with a primary source of pressurized gas to deliver the pressurized gas to a patient's airways and at least one supplemental gas port, the at least one supplemental gas port including a portion extending into an interior of the mask assembly to provide a flow of supplemental gas from a secondary source pneumatically separate from the primary source;
- and
- a cannula having a first end and a second end, the first end adapted to communicate with the portion of the at least one supplemental gas port extending into an interior of the mask assembly, and the second end dimensioned and configured to be positioned within the mask assembly and adjacent to or within a nasal area and/or mouth area of a patient in use, wherein supplemental gas is deliverable through the cannula to the patient's nasal area and/or mouth area.
Dependencies are inferred from the claim text.