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:
Nov. 12, 2019
Filed:
Dec. 03, 2014
Applicant:
Alcon Research, Ltd., Fort Worth, TX (US);
Inventor:
Jaime Zacharias, Santiago, CL;
Assignee:
Alcon Research, Ltd., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 9/007 (2006.01); A61M 1/00 (2006.01);
U.S. Cl.
CPC ...
A61F 9/00736 (2013.01); A61F 9/007 (2013.01); A61M 1/0035 (2014.02); A61M 1/0037 (2013.01); A61M 1/0066 (2013.01); A61M 1/0082 (2014.02); A61F 9/00745 (2013.01); A61M 2210/0612 (2013.01);
Abstract
A cyclic aperture flow regulator system has an adjustable fluid aperture in a fluid path connecting the aspiration port of a surgical probe with a vacuum source. The cross-sectional area of the fluid aperture can be modified by an actuator. The actuator is controlled to modify the cross-sectional area of the adjustable fluid aperture in cycles. During each cycle, the fluid aperture cross-sectional area is substantially reduced or closed. The cycles occur at a rate fast enough to produce a substantially steady flow, with minimum flow ripple and pressure ripple.