PATIENT INTERFACE DEVICE Russian patent published in 2018 - IPC A61M16/06 

FIELD: medicine.

SUBSTANCE: patientinterface device comprises a sealing unit to supply a flow of respiratory gas to the patient, a fixing assembly to secure the sealing assembly to the patient's face, and comprising a force limiter to limit the force between the patient interface device and the patient's face to a maximum predetermined force when the patient interface device is attached to the patient. The force limiter comprises the first and second connecting members constituting a self-releasable interference fit to transfer force from the first to the second connecting member and to release the interference fit between the two connecting members when the force exceeds the maximum specified force. A headband assembly is disclosed to secure the patient interface on the patient's face.

EFFECT: reduced patient's discomfort when wearing a mask for a long time, which can occur due to an inadequate effort when putting on a mask.

12 cl, 3 dwg