US 10,888,678 B2
CPAP pressurized gas permeable mask cushion
Rudolf Maria Jozef Voncken, Eindhoven (NL); Jonathan Sayer Grashow, Cheswick, PA (US); Sima Asvadi, Eindhoven (NL); and Lauren Patricia Chodkowski, Pittsburgh, PA (US)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 15/507,418
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Aug. 25, 2015, PCT No. PCT/EP2015/069458
§ 371(c)(1), (2) Date Feb. 28, 2017,
PCT Pub. No. WO2016/030381, PCT Pub. Date Mar. 3, 2016.
Claims priority of provisional application 62/042,868, filed on Aug. 28, 2014.
Claims priority of application No. 14187246 (EP), filed on Oct. 1, 2014.
Prior Publication US 2017/0281889 A1, Oct. 5, 2017
Int. Cl. A61M 16/06 (2006.01); A61M 16/04 (2006.01)
CPC A61M 16/0443 (2014.02) [A61M 16/0452 (2014.02); A61M 16/06 (2013.01); A61M 16/0605 (2014.02); A61M 16/0616 (2014.02); A61M 16/0622 (2014.02); A61M 16/0633 (2014.02); A61M 16/0683 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A patient-contacting element for a patient interface for delivering a flow of gas to a user, said patient-contacting element being configured to provide a substantially air-tight seal with the user's skin during use and comprises:
an inlet for receiving at least part of the flow of gas,
at least one gas-permeable element that is disposed within the patient-contacting element and arranged in fluidic communication with the inlet,
a first layer of an air-tight material that is arranged between the at least one gas permeable element and an inner space of the patient-contacting element for receiving a nose and/or a mouth of the user, wherein the air-tight material has a plurality of openings therein for allowing the passage of the gas directly between the inner space and the at least one gas-permeable element, and
a second layer of an air-tight material that is arranged between the at least one gas-permeable element and an outer space of the patient-contacting element which is not in fluidic communication with the flow of gas during use, wherein the at least one gas-permeable element is in direct contact with the first layer of the air-tight material on a side of the layer of the air-tight material that is opposite the inner space.