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:
May. 09, 2023
Filed:
Oct. 23, 2019
Applicant:
Alcon Inc., Fribourg, CH;
Inventors:
Daryush Agahi, Irvine, CA (US);
Jiansheng Zhou, Cerritos, CA (US);
Assignee:
Alcon Inc., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); A61F 9/007 (2006.01); G05D 7/06 (2006.01); H01F 7/06 (2006.01); H01F 7/16 (2006.01); F16K 37/00 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
A61F 9/00763 (2013.01); F16K 31/0603 (2013.01); F16K 37/0041 (2013.01); G05D 7/0623 (2013.01); G05D 7/0635 (2013.01); H01F 7/064 (2013.01); H01F 7/16 (2013.01); A61B 2017/0019 (2013.01); A61B 2017/00544 (2013.01);
Abstract
Systems and methods for optimizing the application of pulse width modulation (PWM) in a voltage signal for delivering a current in a valve used to alternatively deliver pressurized gas to and vent from chambers in a vitrectomy probe used to drive a cutter.