Apparatus for humidifying a respiratory gas
First Claim
1. A continuous positive airway pressure (CPAP) apparatus configured to deliver pressurized respiratory gas to a patient interface, the CPAP apparatus comprising:
- a CPAP unit configured to pressurize the respiratory gas, the CPAP unit comprising a housing with a side wall configured to discharge the pressurized respiratory gas;
a humidifier support housing with a connecting wall configured to be rigidly coupled to the side wall of the CPAP housing in a lateral joining direction; and
a liquid storage unit that is removably receivable within a receiving space that is defined at least in part by a receiving space wall of the humidifier support housing,wherein the humidifier support housing is configured to receive the pressurized respiratory gas from the CPAP unit housing side wall through a connecting wall air inlet and discharge the pressurized respiratory gas into the liquid storage unit through an air outlet in a receiving space wall, the direction of the pressurized respiratory gas through the connecting wall air inlet and the receiving space wall air outlet being parallel to the lateral joining direction, andwherein a center of a cross-section of the connecting wall air inlet taken normal to the flow of the pressurized respiratory gas is offset normal to the flow of the pressurized respiratory gas from a center of a cross-section of the receiving space wall air outlet taken normal to the flow of the pressurized respiratory gas.
3 Assignments
0 Petitions
Accused Products
Abstract
A humidifier assembly for a CPAP includes a base housing with a gas inlet configured to receive respiratory gas from the CPAP unit. The base housing includes a first connecting device located at a sidewall of the base housing and configured to directly, removably connect the base housing to the CPAP unit. The base housing also includes a second connecting device configured to be coupled to an air delivery hose. The humidifier assembly further includes a liquid storage container that is removably received in the base housing. The liquid storage container includes a liquid storage space configured to store liquid and a humidifying region configured to receive the respiratory gas from the gas feed opening and receive a partial amount of the liquid stored in the liquid storage space to enrich the respiratory gas with moisture.
235 Citations
26 Claims
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1. A continuous positive airway pressure (CPAP) apparatus configured to deliver pressurized respiratory gas to a patient interface, the CPAP apparatus comprising:
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a CPAP unit configured to pressurize the respiratory gas, the CPAP unit comprising a housing with a side wall configured to discharge the pressurized respiratory gas; a humidifier support housing with a connecting wall configured to be rigidly coupled to the side wall of the CPAP housing in a lateral joining direction; and a liquid storage unit that is removably receivable within a receiving space that is defined at least in part by a receiving space wall of the humidifier support housing, wherein the humidifier support housing is configured to receive the pressurized respiratory gas from the CPAP unit housing side wall through a connecting wall air inlet and discharge the pressurized respiratory gas into the liquid storage unit through an air outlet in a receiving space wall, the direction of the pressurized respiratory gas through the connecting wall air inlet and the receiving space wall air outlet being parallel to the lateral joining direction, and wherein a center of a cross-section of the connecting wall air inlet taken normal to the flow of the pressurized respiratory gas is offset normal to the flow of the pressurized respiratory gas from a center of a cross-section of the receiving space wall air outlet taken normal to the flow of the pressurized respiratory gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A continuous positive airway pressure (CPAP) apparatus configured to deliver pressurized respiratory gas to a patient interface, the CPAP apparatus comprising:
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a CPAP unit configured to pressurize the respiratory gas, the CPAP unit comprising a housing with a side wall configured to discharge the pressurized respiratory gas; a humidifier support housing with a connecting wall configured to be rigidly coupled to the side wall of the CPAP housing in a lateral joining direction; and a liquid storage unit that is removably receivable within a receiving space in the humidifier support housing, wherein the CPAP unit housing side wall is configured to discharge the pressurized respiratory gas to the humidifier support housing through a CPAP unit air outlet, and the liquid storage unit is configured to receive the pressurized respiratory gas from the humidifier support housing through a gas feed opening, the direction of the pressurized respiratory gas through the CPAP unit air outlet and the gas feed opening being parallel to the lateral joining direction, and wherein a center of a cross-section of the CPAP unit air outlet taken normal to the flow of the pressurized respiratory gas is offset normal to the flow of the pressurized respiratory gas from a center of a cross-section of the gas feed opening taken normal to the flow of the pressurized respiratory gas when the liquid storage unit is fully received in the receiving space and the connecting wall of the humidifier support housing is connected to the CPAP unit housing side wall. - View Dependent Claims (12, 13, 14, 15)
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16. A continuous positive airway pressure (CPAP) apparatus configured to deliver pressurized respiratory gas to a patient interface, the CPAP apparatus comprising:
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a CPAP unit configured to pressurize the respiratory gas, the CPAP unit comprising a housing with a side wall, the side wall comprising a CPAP connecting member configured to discharge the pressurized respiratory gas; a humidifier support housing with a connecting wall configured to be rigidly coupled to the side wall of the CPAP housing in a lateral joining direction, the connecting wall comprising a humidifier connecting portion configured to connect with and receive the pressurized respiratory gas from the CPAP connecting member when the connecting wall is rigidly coupled to the CPAP unit housing side wall; and a liquid storage unit that is removably receivable within a receiving space that is defined at least in part by a receiving space wall of the humidifier support housing, the liquid storage unit comprising a gas feed opening configured to be collinear with and receive the pressurized respiratory gas from a gas discharge outlet of the receiving space wall when the liquid storage unit is fully received within the receiving space, wherein neither the CPAP connecting member nor the humidifier connecting portion is collinear with the gas discharge outlet or the gas feed opening. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification