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.

Date of Patent:
May. 10, 2016

Filed:

Apr. 11, 2013
Applicant:

Fresca Medical, Inc., San Clemente, CA (US);

Inventors:

Andrew H. Cragg, Edina, MN (US);

John Logan, Plymouth, MN (US);

John Trusheim, Chaska, MN (US);

John Nolting, Poway, CA (US);

Eugene Chen, Carlsbad, CA (US);

Mark Adler, Carlsbad, CA (US);

Assignee:

FRESCA Medical, Inc., San Clemente, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 16/06 (2006.01); A61M 16/20 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01);
U.S. Cl.
CPC ...
A61M 16/208 (2013.01); A61M 16/00 (2013.01); A61M 16/0057 (2013.01); A61M 16/06 (2013.01); A61M 16/0683 (2013.01); A61M 16/0833 (2014.02); A61M 16/0866 (2014.02); A61M 16/20 (2013.01); A61M 16/0069 (2014.02); A61M 16/0688 (2014.02); A61M 16/0875 (2013.01); A61M 16/202 (2014.02); A61M 16/209 (2014.02); A61M 2016/0039 (2013.01); A61M 2016/0661 (2013.01); A61M 2205/42 (2013.01); A61M 2205/8206 (2013.01); A61M 2209/088 (2013.01); A61M 2230/205 (2013.01);
Abstract

A system for treating a patient suffering from obstructive sleep apnea may include a mask, a portable air flow generator configured to generate air flow at a relatively low flow rate, and a tube connecting the air flow generator and the mask such that air flow from the generator passes through an air flow generator valve on the mask. The mask may include a contact surface for forming a seal between the mask and the patient's face such that the mask surrounds the patient's nostrils, an expiration valve that opens during expiration, and an air flow generator valve that opens during inspiration. In some embodiments, the mask may further include an inspiration valve that opens during inspiration to allow air from outside the system to enter the mask.


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