Nasal mask cushion assembly (US6871649)


	Parent Case:			CROSS REFERENCE TO RELATED APPLICATIONS THIS APPLICATION IS A DIVISIONAL OF U.S. PATENT APPLICATION SER. NO. 09/566,806, FILED MAY 8, 2000 NOW U.S. PAT. NO. 6,634,358, WHICH CLAIMS PRIORITY FROM U.S. PATENT APPLICATION SER. NO. 08/791,212, FILED JAN. 31, 1997 (NOW U.S. PAT. NO. 6,112,746), THE SPECIFICATIONS OF WHICH ARE INCORPORATED HEREIN BY REFERENCE.
	Family:			Show 231 known family members
	First Claim: Show all 8 claims			1. A nasal mask cushion to sealingly connect a mask to a wearer's face, the cushion comprising: a nasal bridge region, a cheek region and a lip region; a first membrane comprising a substantially triangularly-shaped frame of resilient material having a first molded inwardly curved rim of said first membrane; and a second membrane of resilient material, said second membrane being thinner and more flexible than said first membrane, said second membrane having a second molded inwardly curved rim, said second membrane curved rim spaced a distance from said first membrane curved rim, said distance greater than a thickness of the first molded inwardly curved rim, said distance measured when the mask is not in use, a portion of said second membrane curved rim forming a face contacting seal.
	Background / Summary:			Show background / summary
	Drawing Descriptions:			Show drawing descriptions
	Description:			Show description
	Forward References:			Show 13 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (13) | Backward references (175) | Citation Link

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* some details unavailable

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WO9741911	1997-11	A61B 19/00	RUBEN PHILIP H	A FACIAL SURGICAL MASK WITH EASIER BREATHING DEVICE
WO9804310	1998-02	A61M 16/06	KWOK PHILIP RODNEY	A NASAL MASK AND MASK CUSHION THEREFOR
WO9811930	1998-03	A61M 16/00	RESPIRONICS, INC.	PRESSURE SENSITIVE FLOW CONTROL VALVE
WO9818514	1998-05	A61M 16/06	SLEEPNET CORP	NASAL AIR MASK
WO9824499	1998-06	A61M 16/06	BRUDERER JAKOB WALTER	A MASK AND HARNESS ASSEMBLY
WO9826829	1998-06	A61F 5/56	BERTHON-JONES, MICHAEL	A DEVICE FOR PREVENTING OR REDUCING THE PASSAGE OF AIR THROUGH THE MOUTH
WO9826830	1998-06	A61M 16/06	LITHGOW, PERRY, DAVID	NON RETURN SLIDER VALVE USED IN RESPIRATION SYSTEMS
WO9848878	1998-11	A61M 16/00	HAUSHALTER GEORG	BREATHING MASK