Portable positive airway pressure apparatus and method for attenuating the noise emitted therefrom
First Claim
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1. A portable Continuous Positive Airway Pressure (CPAP) apparatus, comprising:
- a housing, wherein the housing defines a first acoustic chamber and a second acoustic chamber, the first acoustic chamber having a volume and a first inlet port, the first inlet port defining a length and cross-sectional area that is proportionally related to the volume of the first chamber, the second acoustic chamber having a volume and a second inlet port, wherein the second inlet port extends from the first acoustic chamber into the second acoustic chamber;
a blower unit that being disposed within the second acoustic chamber; and
wherein the first inlet port includes an intake tube which extends from an exterior portion of the second acoustic chamber, passes through an interior portion of the second acoustic chamber, and into the first acoustic chamber.
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Abstract
The systems and methods described herein provide a quiet, light-weight, and portable system and apparatus for providing positive air pressure to a patient. The systems may include a housing with an inlet port, a vibrationally isolated blower unit positioned in an inner chamber, and an outlet port for delivery of the pressurized air from the blower unit. The inlet port and outlet port may each have a tube with dimensions that are defined in relation to the inner chamber so as to reduce the overall noise output of the system.
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16 Claims
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1. A portable Continuous Positive Airway Pressure (CPAP) apparatus, comprising:
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a housing, wherein the housing defines a first acoustic chamber and a second acoustic chamber, the first acoustic chamber having a volume and a first inlet port, the first inlet port defining a length and cross-sectional area that is proportionally related to the volume of the first chamber, the second acoustic chamber having a volume and a second inlet port, wherein the second inlet port extends from the first acoustic chamber into the second acoustic chamber; a blower unit that being disposed within the second acoustic chamber; and wherein the first inlet port includes an intake tube which extends from an exterior portion of the second acoustic chamber, passes through an interior portion of the second acoustic chamber, and into the first acoustic chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification