Respiratory mask and process for making a respiratory mask
AssigneeLoewenstein Medical Technology S.A.
InventorMartin Eifler
Life of this patent
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Abstract
The invention relates to a respiratory mask (1) having a mask unit (2) and having an emission device (3) for discharging exhaled gas from the respiratory mask (1). The mask unit (2) comprises a mask body (4) and a connection unit (5) which can be connected to the mask body (4) for connection of a respiratory gas feed line (101). The emission device (3) comprises a plurality of flow channels (6), which are arranged in at least one part of the mask unit (2). Here the emission device (3) comprises at least one flow channel.
Claims18
A respiratory mask, wherein the mask comprises a mask unit and at least one emission device for discharging exhaled gas from inside the respiratory mask, the mask unit comprising at least one mask body and at least one mask bead connected to the mask body and a connection unit connected to the mask body for connection of a respiratory gas feed line, and the emission device comprising a plurality of separate flow channels which respectively consist of at least two flow subchannels and are arranged at a distance from one another and at least in sections circularly or semicircularly, and wherein at least one of the flow channels comprises at least one constriction section which extends over a distance which is at least equal to one half of a total length of the flow channel;
- and at least one of the flow channels comprises at least one inlet region narrowing in the shape of a funnel before a constriction section in a flow direction and at least one outlet region widening in the shape of a funnel after the constriction section in the flow direction.
Dependencies are inferred from the claim text.