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:
Sep. 06, 2016
Filed:
Jun. 28, 2013
Applicant:
Carefusion 303, Inc., San Diego, CA (US);
Inventors:
Malcolm R. Williams, San Clemente, CA (US);
Adrian D. Desilva, Riverside, CA (US);
Huy Thanh Vu, Westminster, CA (US);
Assignee:
CAREFUSION 303, INC., San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); A61M 16/20 (2006.01); A61M 16/00 (2006.01);
U.S. Cl.
CPC ...
A61M 16/205 (2014.02); A61M 16/0003 (2014.02); A61M 16/0051 (2013.01); A61M 16/0057 (2013.01); A61M 16/0066 (2013.01); A61M 16/204 (2014.02); F16K 31/0675 (2013.01); F16K 31/0679 (2013.01); A61M 2016/003 (2013.01); A61M 2016/0027 (2013.01); A61M 2016/0039 (2013.01); A61M 2016/0042 (2013.01); A61M 2205/125 (2013.01); A61M 2205/128 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/505 (2013.01); A61M 2205/581 (2013.01);
Abstract
Described herein is an exhalation valve for a ventilator that controls gas flow through a patient exhalation line in response to a target pressure within the line. The valve controls gas flow by (i) providing both a high frequency signal and a low frequency signal through a coil positioned in a fixed magnetic field, (ii) determining a position of the coil by detecting the high frequency signal, and (iii) controlling a position of the coil by adjusting the low frequency signal.