PATIENT INTERFACE DEVICE FOR BREATHING GAS FLOW DELIVERY TO PATIENT'S AIRWAYS Russian patent published in 2016 - IPC A61M16/08 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment. A device comprises a pillow, a frame and a pipeline for fluid connection. The pillow is connected to the frame. The frame has a hole in the fluid connection to the pillow. The pipeline comprises a feed end and a delivery end in the fluid connection to the feed end. The feed end is configured so as to receive the breathing gas flow. The feed end is configured so as to be fluid connected to the hole in the frame. A part of the central chamber is arranged between the feed end and the delivery end. The part of the central chamber has an external wall configured opposite the frame hole when the delivery end is in the fluid connection with the hole. The number of exhaust gas holes is arranged on the external wall and extend through it. A number of separation elements are connected to and extend from an internal surface of the external wall and comprise a number of surfaces configured to reflect sound waves connected to the exhaust gas flow through the frame hole, wherein each separation element comprises a region of a guide edge, which has a number of arched parts.

EFFECT: presented device reduces the noise connected to the exhaust gas flow.

5 cl, 33 dwg