Respiratory mask
AssigneeLoewenstein Medical Technology S.A.
InventorsGerd Schulz, Martin Eifler
Life of this patent
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Abstract
A respiratory mask featuring a mask body and an articulated connection piece that can be connected to a respiratory tube. On the mask body, at least one exhalation gap is located in the vicinity of a connection that holds the articulated connection piece. Preferably, the exhalation gap terminates in an umbrella-shaped outflow channel that runs away from the patient. Preferably, at least two components of the respiratory mask are interconnected without play.
Claims8
A respiratory mask, wherein the respiratory mask comprises flow openings which lead to more than two exhalation gaps and are bounded by flow guide surfaces which cause a respiratory gas flow to converge and to be guided into the exhalation gaps, the respiratory gas flow moving along the flow guide surfaces from an inside of the respiratory mask to a surrounding environment, wherein the exhalation gaps are separated from each other by spacing elements, and wherein the respiratory gas flow is deflected in an exhalation gap at least once on a flow guide surface and is adapted to leave an exhalation gap at an angle of 10-45° with respect to a plane which runs frontally to a face of a patient.
A respiratory mask, wherein the respiratory mask comprises flow openings which lead to more than two exhalation gaps and are bounded by flow guide surfaces which cause a respiratory gas flow to converge and to be guided into the exhalation gaps, the respiratory gas flow moving along the flow guide surfaces from an inside of the respiratory mask to a surrounding environment, wherein the exhalation gaps are separated from each other by spacing elements, wherein the respiratory gas flow is deflected in an exhalation gap at least once on a flow guide surface and wherein during passage through an exhalation gap along a flow guide surface the respiratory gas flow is deflected at an angle of 1-15° with respect to a vertical line which is at an angle of 90° with respect to a plane formed by parts of a mask body that bound the exhalation gap.
A respiratory mask, wherein the mask comprises a mask body and at least one outflow channel for respiratory gas in a vicinity of the mask body, wherein during its passage from an inside of the mask body through at least one exhalation gap to an outside environment along at least one flow guide surface, a respiratory gas flow is deflected at least once at an angle of more than 2° with respect to a vertical line which is at an angle of 90° with respect to a plane formed by parts of the mask body that bound the exhalation gap.
Dependencies are inferred from the claim text.