The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2022
Filed:
Jul. 13, 2018
Applicant:
Fresca Medical Inc., San Clemente, CA (US);
Inventors:
Richard Ewers, Fulterton, CA (US);
Andrew Dominguez, San Clemente, CA (US);
Assignee:
FRESCA MEDICAL, INC., San Clemente, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 16/20 (2006.01); A61M 16/00 (2006.01); A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61M 16/205 (2014.02); A61B 5/6803 (2013.01); A61M 16/0003 (2014.02); A61M 16/024 (2017.08); A61M 16/0666 (2013.01); A61M 16/0683 (2013.01); A61M 16/0816 (2013.01); A61M 16/204 (2014.02); A61M 16/208 (2013.01); A61B 5/4809 (2013.01); A61M 16/0066 (2013.01); A61M 16/0875 (2013.01); A61M 2016/0027 (2013.01); A61M 2205/3569 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/42 (2013.01); A61M 2205/8206 (2013.01); A61M 2230/06 (2013.01); A61M 2230/18 (2013.01); A61M 2230/30 (2013.01); A61M 2230/42 (2013.01); A61M 2230/50 (2013.01); A61M 2230/63 (2013.01); A61M 2230/65 (2013.01);
Abstract
A valve structure for treating a patient suffering from obstructive sleep apnea is provided. The valve structure is connected to an air flow generator and is connected to a mask that covers at least the nostrils of a patient. The valve structure includes an inlet pressure port attached to the air flow generator and an expiration valve that includes an expiratory membrane, a primary seat and a secondary seat. During inspiration, the expiratory membrane forms a seal with the primary seat, and during expiration, the expiratory membrane forms a seal with the secondary seat.