Air pressure signal monitoring in apparatus for treating sleep disordered breathing
First Claim
Patent Images
1. A humidifier comprising:
- a first humidifier part,a second humidifier part connectable with the first humidifier part, anda sealing gasket disposed between the first and second humidifier parts;
wherein the second humidifier part is configured to hold a volume of liquid therein, the first and second humidifier parts and the sealing gasket define first and second internal passages within the humidifier, and the first passage is disposed so as to be exposed to a surface of the volume of liquid and the second passage being isolated from at least one of the first passage and the surface of the volume of liquid, the second passage being configured to communicate with a pressure and/or sound sensing device.
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Abstract
A humidifier is provided including a first humidifier part, a second humidifier part connectable with the first humidifier part, and a sealing gasket disposed between the first and second humidifier parts. The second humidifier part is configured to hold a volume of liquid therein and the first and second humidifier parts and the sealing gasket define first and second internal passages within the humidifier. The first passage is disposed so as to be exposed to a surface of the volume of liquid and the second passage is isolated from at least one of the first passage and the surface of the volume of liquid. The second passage is configured to communicate with a pressure and/or sound sensing device.
152 Citations
23 Claims
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1. A humidifier comprising:
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a first humidifier part, a second humidifier part connectable with the first humidifier part, and a sealing gasket disposed between the first and second humidifier parts; wherein the second humidifier part is configured to hold a volume of liquid therein, the first and second humidifier parts and the sealing gasket define first and second internal passages within the humidifier, and the first passage is disposed so as to be exposed to a surface of the volume of liquid and the second passage being isolated from at least one of the first passage and the surface of the volume of liquid, the second passage being configured to communicate with a pressure and/or sound sensing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18)
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16. A method of determining pressure within a conduit supplying breathable gas from a CPAP apparatus to a patient mask, the method comprising:
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providing a humidifier with first and second internal passages therein, wherein the first passage is disposed within the humidifier so as to be exposed to a surface of a volume of liquid present within the humidifier and the second passage is isolated from the first passage; supplying the breathable gas to a first inlet tube of the humidifier in communication with the first internal passage so that breathable gas flowing therethrough is humidified by contact with the volume of liquid and is communicated with an outlet tube of the humidifier; providing an aperture within the outlet tube in communication with the second internal passage; and measuring a pressure within the second internal passage to determine pressure within the outlet tube. - View Dependent Claims (17)
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19. A humidifier comprising:
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a base; a top cover connectable with the base; a sealing gasket disposed between the base and the top cover; and first and second internal passages within the humidifier, the first passage being disposed so as to be exposed to a surface of a volume of liquid within the base, and the second passage being at least partially formed in the top cover and being configured to communicate with a pressure and/or sound sensing device. - View Dependent Claims (22, 23)
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20. A humidifier comprising:
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a first humidifier part, a second humidifier part connectable with the first humidifier part, and a sealing gasket disposed between the first and second humidifier parts; wherein the second humidifier part is configured to hold a volume of liquid therein, the first and second humidifier parts and the sealing gasket define first and second internal passages within the humidifier and the first passage is disposed so as to be exposed to a surface of the volume of liquid and the second passage being isolated from at least one of the first passage and the surface of the volume of liquid, the second passage being configured to communicate with a pressure and/or sound sensing device, and wherein a portion of a surface of the sealing gasket defines a corresponding internal wall of the second internal passage.
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21. A humidifier comprising:
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a first humidifier part, a second humidifier part connectable with the first humidifier part, and a sealing gasket disposed between the first and second humidifier parts; wherein the second humidifier part is configured to hold a volume of liquid therein, the first and second humidifier parts and the sealing gasket define first and second internal passages within the humidifier, and the first passage is disposed so as to be exposed to a surface of the volume of liquid and the second passage being isolated from at least one of the first passage and the surface of the volume of liquid, the second passage being configured to communicate with a pressure and/or sound sensing device, and wherein the first humidifier part includes an outlet tube that extends from an internal wall structure of the first humidifier part in such a manner to be communicated with the first internal passage to outside of the humidifier, and the second internal passage is communicated with the outlet tube via at least one aperture formed in the outlet tube.
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Specification