CPC A61M 16/085 (2014.02) [A61B 5/082 (2013.01); A61B 5/6803 (2013.01); A61M 16/06 (2013.01); A61M 16/0611 (2014.02); A61M 16/0683 (2013.01); A61M 16/22 (2013.01); A61M 2202/0208 (2013.01); A61M 2205/6081 (2013.01); A61M 2230/43 (2013.01)] | 23 Claims |
1. A ventilation mask, comprising:
a mask body defining a patient cavity, the mask body comprising:
a patient opening in fluid communication with the patient cavity; and
a vent opening formed through the mask body, the vent opening in fluid communication with the patient cavity, wherein the vent opening is disposed generally opposite to the patient opening; and
a gas manifold coupled to the mask body, the gas manifold and the mask body cooperatively defining a gas channel disposed circumferentially around the vent opening, wherein a first portion of an interior surface of the gas channel is defined by the gas manifold and a second portion of the interior surface of the gas channel is defined by the mask body, the gas manifold comprising a plurality of vectored gas ports in fluid communication with the gas channel, wherein the plurality of vectored gas ports are configured to create a curtain effect gas flow within the patient cavity to form a gas curtain within the patient cavity and adjacent to the vent opening.
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