Sealing nasal cannula
First Claim
1. A ventilation interface comprising:
- a nasal cannula body, the nasal cannula body comprising;
a pair of nasal prongs located on a top portion of the nasal cannula body to create a first sealing interface between the nasal cannula body and a nose; and
a bellows-like structure integrally molded in a portion of the nasal cannula body to create a second sealing interface between the nasal cannula body and the nose.
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Accused Products
Abstract
An integrally molded ventilation interface includes a hollow bellows-like structure and two nasal prongs extending from a top surface of the bellows. A pair of headgear strap flanges can also be molded integrally with the ventilation interface. The nasal prongs provide a first sealing interface between an outer surface of the nasal prongs and an inner surface of the patient'"'"'s nares. The bellows provides a second sealing interface between a top surface of the bellows-like structure and a bottom surface of a patient'"'"'s nose. The headgear strap flanges provide a third sealing interface between the ventilation interface and a mustache region of the patient'"'"'s face as well as a bottom surface of the patient'"'"'s nose.
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Citations
28 Claims
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1. A ventilation interface comprising:
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a nasal cannula body, the nasal cannula body comprising;
a pair of nasal prongs located on a top portion of the nasal cannula body to create a first sealing interface between the nasal cannula body and a nose; and
a bellows-like structure integrally molded in a portion of the nasal cannula body to create a second sealing interface between the nasal cannula body and the nose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A ventilation interface comprising:
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a nasal cannula body; and
a pair of barrel shaped prongs located on a top portion of the nasal cannula body, the barrel shaped prongs providing a large sealing surface between an outer surface of the prongs and an inner surface of a patient'"'"'s nares. - View Dependent Claims (22, 23)
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24. A ventilation interface comprising:
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a nasal cannula body; and
a pair of nasal prongs located on a top portion of the nasal cannula body, the nasal prongs comprising a thin wall that inflates under pressure to create a sealing surface with nares of a patient. - View Dependent Claims (25, 26)
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27. A ventilation interface comprising:
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means for creating a first sealing interface between the ventilation interface and a patient'"'"'s nose;
means for creating a second sealing interface between the ventilation interface and the patient'"'"'s nose; and
means for creating a third sealing interface between the ventilation interface and the patient'"'"'s nose.
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28. A method of manufacturing a ventilation interface comprising:
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forming a nasal cannula body from a flexible material;
forming a pair of nasal prongs materially integrally with the nasal cannula body; and
forming a headgear strap materially integrally with the nasal cannula body.
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Specification