A CPAP device for delivering pressurized, humidified breathable gas for a patient includes a flow generator configured to pressurize a flow of breathable gas. The flow generator includes an air outlet and a removable water container configured to humidify the pressurized breathable gas received from
A CPAP device for delivering pressurized, humidified breathable gas for a patient includes a flow generator configured to pressurize a flow of breathable gas. The flow generator includes an air outlet and a removable water container configured to humidify the pressurized breathable gas received from the flow generator. The water container includes an air inlet and an air outlet. The CPAP device further includes a first elastomeric face seal configured to sealingly abut against a substantially flat portion of the water container surrounding the water container air inlet, the first elastomeric face seal being located at an intermediate position between the flow generator air outlet and the water container air inlet when the water container is placed into position to pneumatically communicate with the flow generator. In addition, the CPAP device includes a second elastomeric face seal, a portion of which is configured to sealingly abut against a substantially flat external surface portion of the water container surrounding the water container air outlet.
대표청구항▼
1. A breathable gas supply apparatus for delivering pressurized, humidified breathable gas for a patient, the breathable gas supply apparatus comprising: a flow generator configured to pressurize a flow of breathable gas, the flow generator comprising an air outlet;a removable water container config
1. A breathable gas supply apparatus for delivering pressurized, humidified breathable gas for a patient, the breathable gas supply apparatus comprising: a flow generator configured to pressurize a flow of breathable gas, the flow generator comprising an air outlet;a removable water container configured to humidify the pressurized breathable gas received from the flow generator, the water container comprising an air inlet and an air outlet;a first elastomeric face seal configured to sealingly abut against a substantially flat portion of the water container surrounding the water container air inlet, the first elastomeric face seal being located at an intermediate position between the flow generator air outlet and the water container air inlet when the water container is placed into position to pneumatically communicate with the flow generator;a lid; anda second elastomeric face seal located on the lid, a portion of the second elastomeric face seal being configured to sealingly abut against a substantially flat external surface portion of the water container surrounding the water container air outlet. 2. The breathable gas supply apparatus according to claim 1, wherein the first and second elastomeric face seals are configured to seal without any portion of the water container entering apertures defined by the first and second elastomeric face seals such that removing the water container results in decoupling of the water container from the first elastomeric face seal. 3. The breathable gas supply apparatus according to claim 1, wherein the water container air inlet is located on a side wall of the water container and the substantially flat portion of the water container surrounding the water container air inlet is a) an external surface of the water container that is perpendicular to a direction of airflow entering the water container air inlet and b) coplanar with an aperture in the external surface of the water container. 4. The breathable gas supply apparatus according to claim 1, wherein the second elastomeric face seal comprises a base connected to the lid and comprises a curved flange extending from the base toward an axis of an aperture defined by the base of the second elastomeric face seal, the curved flange being configured to seal against the water container. 5. The breathable gas supply apparatus according to claim 1, wherein the water container air outlet is configured to be in pneumatic communication with an air delivery hose in use. 6. The breathable gas supply apparatus according to claim 1, further comprising a sealed air path through the first elastomeric face seal and through the water container air inlet to an interior of the water container, when the water container is pneumatically connected with the flow generator by sliding the water container generally laterally into position, and wherein the sealed air path extends from the flow generator to the second elastomeric face seal. 7. The breathable gas supply apparatus according to claim 4, wherein the base of he second elastomeric face seal comprises a groove to receive a portion of the lid and secure the second elastomeric face seal to the lid. 8. The breathable as supply apparatus according to claim 1 further comprising: an external case;a fascia and a user interface on the external case; anda fan comprising a motor and provided with a coaxial impeller to provide pressurized gas to the flow generator air outlet. 9. The breathable gas supply apparatus according to claim 1 further comprising: an external case;a fascia and a user interface on the external case;a fan comprising a motor and provided with a coaxial impeller to provide pressurized gas to the flow generator air outlet; anda sealed air path through the first elastomeric face seal and through the water container air inlet to an interior of the water container, when the water container is pneumatically connected with the flow generator by sliding the water container generally laterally into position,wherein the second elastomeric face seal comprises a base connected to the lid and comprises a curved flange, the curved flange being configured to seal against the water container,wherein the first and second elastomeric face seals are configured to seal without any portion of the water container entering apertures defined by the first and second elastomeric face seals such that removing the water container results in decoupling of the water container from the first elastomeric face seal,wherein the substantially flat portion of the water container is an external surface of the water container and is perpendicular to a direction of airflow entering the water container air inlet,wherein the water container air inlet is located on a side wall of the water container and the substantially flat portion of the water container surrounding the water container air inlet is coplanar with an aperture in the external surface of water container,wherein the water container air outlet is configured to be in pneumatic communication with an air delivery hose in use, andwherein the sealed air path extends from the flow generator to the second elastomeric face seal. 10. The breathable gas supply apparatus according to claim 1, wherein the lid is pivotable between an open position in which the water container is removable, and a closed position in which the water container is secured against removal. 11. The breathable gas supply apparatus according to claim 1, wherein the lid comprises an angled conduit that is connectable to an air delivery hose, and the lid is configured to secure the water container in position when the lid is in a closed position. 12. A breathable gas supply apparatus for delivering pressurized, humidified breathable gas for a patient, the breathable gas supply apparatus comprising: a humidifier base unit with an engagement face configured to directly attach to and detach from a flow generator, the humidifier base unit comprising an air inlet at the engagement face; anda water container with an air inlet and an air outlet, the water container being removably positionable at least partly within the humidifier base unit;a first elastomeric face seal with an aperture, the first elastomeric face seal being configured to sealingly abut against an external sealing surface of the water container surrounding the water container air inlet; anda lid attached to the humidifier base unit, the lid comprising a lid seal configured to sealingly engage the water container air outlet, the lid seal comprising a second elastomeric face seal,wherein the humidifier base unit and the water container are configured to create a sealed air path upon positioning the water container at least partly within the humidifier base unit and upon the water container sealingly engaging the first elastomeric face seal, andwherein the sealed air path extends at least through the humidifier base unit air inlet, through the first elastomeric face seal, through the water container and to an outlet of the humidifier base unit. 13. The breathable gas s apparatus according to claim 12, wherein the humidifier base unit and the water container are configured so that positioning the water container at least partly within the humidifier base unit automatically aligns the water container air inlet with the first elastomeric face seal. 14. The breathable gas supply apparatus according to claim 12, wherein the lid is pivotably attached to the humidifier base unit, and wherein the lid is configured so that when the lid is pivoted to a closed position and the breathable gas supply apparatus is in use, the second elastomeric face seal forms an air pressure assisted seal against the water container such that air pressure forces a flange of the second elastomeric face seal downwards against the water container. 15. The breathable gas supply apparatus according to claim 12, wherein the external sealing surface of the water container is perpendicular to a direction of airflow entering the water container air inlet. 16. The breathable gas supply apparatus according to claim 12, wherein the aperture of the first elastomeric face seal extends completely through the first elastomeric face seal. 17. The breathable gas supply apparatus according to claim 12, wherein the lid is pivotably attached to the humidifier base unit,wherein the lid is configured so that when the lid is pivoted to a closed position and the breathable gas supply apparatus is in use, the second elastomeric face seal forms an air pressure assisted seal against the water container such that air pressure forces a flange of the second elastomeric face seal downwards against the water container,wherein the humidifier base unit and the water container are configured so that positioning the water container at least partly within the humidifier base unit automatically aligns the water container air inlet with the first elastomeric face seal,wherein the first elastomeric face seal is configured to sealingly engage the water container only at a sealing surface, the sealing surface of the first elastomeric face seal being perpendicular to a direction of airflow entering the water container air inlet, andwherein the aperture of the first elastomeric face seal extends completely through the first elastomeric face seal. 18. The breathable gas supply apparatus of claim 12 further comprising the flow generator to which the humidifier base unit is removably attachable, the flow generator comprising: an external case;a gas connector extending from a vertical face of the external case, the gas connector being configured to connect to the humidifier base unit air inlet;a fascia and a user interface on a top side of the external case; anda fan comprising a motor and provided with a coaxial impeller to provide pressurized gas to the gas connector. 19. The breathable gas supply apparatus according to claim 18, wherein the sealed air path extends from the flow generator to the humidifier base unit outlet, and the flow generator is configured to generate pressurized gas suitable for continuous positive airway pressure (CPAP) therapy. 20. The breathable gas supply apparatus according to claim 19, further comprising a catch assembly configured to secure the vertical face of the flow generator to the engagement face of the humidifier base unit, and wherein the catch assembly comprises a resiliently biased latch on the engagement face of the humidifier base unit and a latch receiving recess on the vertical face of the flow generator external case, the latch receiving recess being configured to receive the resiliently biased latch. 21. A breathable gas supply apparatus for delivering pressurized, humidified breathable gas for a patient, the breathable gas supply apparatus comprising: a humidifier base unit with an engagement face configured to directly attach to and detach from a flow generator, the humidifier base unit comprising an air inlet at the engagement face; anda water container with an air inlet and an air outlet, the water container being removably positionable at least partly within the humidifier base unit;a first elastomeric face seal with a first aperture, the first elastomeric face seal being configured to sealingly abut against a substantially flat, external portion of the water container surrounding the water container air inlet without any portion of the water container entering the first aperture;a lid attached to the humidifier base unit, the lid being pivotable between an open position and a closed position; anda second elastomeric face seal with a second aperture, the second elastomeric face seal being provided to a bottom side of the lid and a portion of the second elastomeric face seal being configured to sealingly abut against a portion of the water container surrounding the water container air outlet without any portion of the water container entering the second aperture,wherein the humidifier base unit and the water container are configured to create a sealed air path upon positioning the water container at least partly within the humidifier base unit and upon the water container sealingly engaging the first elastomeric face seal, andwherein the sealed air path extends at least through the humidifier base unit air inlet, through the first elastomeric face seal, through the water container and to an outlet of the humidifier base unit. 22. The breathable gas supply apparatus according to claim 21, wherein sealed engagement between the water container and the second elastomeric face seal further creates the sealed air path. 23. The breathable gas supply apparatus according to claim 21, wherein the water container is removable from the humidifier base unit when the lid is in the open position, and the lid prevents the water container from being removed when the lid is in the closed position. 24. The breathable gas supply apparatus according to claim 21, wherein the second elastomeric face seal terminates at a sealing flange that curves inwardly toward an axis of the second aperture, the sealing flange being configured to sealingly engage the water container and deform when the lid is in the closed position. 25. The breathable gas supply apparatus according to claim 21, wherein the humidifier base unit and the water container are configured so that positioning the water container at least partly within the humidifier base unit automatically aligns the water container air inlet with the first elastomeric face seal. 26. The breathable gas supply apparatus according to claim 21, wherein the first elastomeric face seal comprises a base portion mounted to the humidifier base unit and comprises a sealing surface extending from the base portion toward an axis of the first aperture, the first elastomeric face seal being configured to sealingly engage the water container only at the sealing surface, the sealing surface of the first elastomeric face seal being perpendicular to a direction of airflow entering the water container air inlet. 27. The breathable gas supply apparatus according to claim 21, wherein a sealed engagement between the water container and the second elastomeric face seal further creates the sealed air path, wherein the water container is removable from the humidifier base unit when the lid is in the open position, and the lid prevents the water container from being removed when the lid is in the closed position,wherein the second elastomeric face seal terminates at a sealing flange that curves inwardly toward an aperture defined by the second elastomeric face seal, the sealing flange being configured to sealingly engage the water container and deform when the lid is in the closed position,wherein the humidifier base unit and the water container are configured so that positioning the water container at least partly within the humidifier base unit automatically aligns the water container air inlet with the first elastomeric face seal, andwherein the first elastomeric face seal comprises a base portion mounted to the humidifier base unit and comprises a sealing surface extending from the base portion, the first elastomeric face seal being configured to sealingly engage the water container only at a sealing surface, the sealing surface of the first elastomeric face seal being perpendicular to a direction of airflow entering the water container air inlet. 28. The breathable gas supply apparatus according to claim 21 further comprising the flow enerator to which the humidifier base unit is removably attachable, the flow generator comprising: an external case;a gas connector extending from a vertical face of the external case, the gas connector being configured to connect to the humidifier base unit air inlet;a fascia and a user interface on a top side of the external case; anda fan comprising a motor and provided with a coaxial impeller to provide pressurized gas to the gas connector. 29. The breathable gas supply apparatus according to claim 28, further comprising a catch assembly configured to secure the vertical face of the flow generator to the engagement face of the humidifier base unit. 30. The breathable gas supply apparatus according to claim 29, wherein the catch assembly comprises a resiliently biased latch on the engagement face of the humidifier base unit and a latch receiving recess on the vertical face of the flow generator external case, the latch receiving recess being configured to receive the resiliently biased latch.
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