Gas delivery face shield
First Claim
Patent Images
1. A device for delivering oxygen to a patient during respiratory therapy comprising:
- a unitary, shape retaining shell member adapted to overlie a patient'"'"'s nose and mouth,a gas delivery member extending across the shell member interior and dividing said shell member into an upper portion and a lower portion, said upper portion having a peripheral surface adapted to provide a substantially gas tight seal with the patient'"'"'s nose bridge and cheeks, said lower portion having a lower edge spaced outwardly thereby providing a lower opening between said mask lower edge and the patient'"'"'s face, said upper and lower portions being arched outwardly from said gas delivery member and thereby in relation to the patient'"'"'s face and forming an enlarged upper and lower chamber, respectively, said gas delivery member having a plurality of orifices directed into said upper chamber for directing oxygen thereto, whereby oxygen delivered to said device through said gas delivery member results in substantially greater oxygen concentration in said upper chamber than in said lower chamber.
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Abstract
A device for delivering gas to a patient comprises a unitary mask member for overlying the patient'"'"'s nose and mouth and having an upper peripheral surface for lying in sealing engagement against the nose and cheeks, and a lower peripheral surface contiguous therewith disposed outwardly from the face, and a gas delivery member extending along the mask interior having orifices for delivering gas.
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Citations
9 Claims
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1. A device for delivering oxygen to a patient during respiratory therapy comprising:
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a unitary, shape retaining shell member adapted to overlie a patient'"'"'s nose and mouth, a gas delivery member extending across the shell member interior and dividing said shell member into an upper portion and a lower portion, said upper portion having a peripheral surface adapted to provide a substantially gas tight seal with the patient'"'"'s nose bridge and cheeks, said lower portion having a lower edge spaced outwardly thereby providing a lower opening between said mask lower edge and the patient'"'"'s face, said upper and lower portions being arched outwardly from said gas delivery member and thereby in relation to the patient'"'"'s face and forming an enlarged upper and lower chamber, respectively, said gas delivery member having a plurality of orifices directed into said upper chamber for directing oxygen thereto, whereby oxygen delivered to said device through said gas delivery member results in substantially greater oxygen concentration in said upper chamber than in said lower chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification