US 12,144,920 B2
System and method for post-occlusion surge mitigation
Vincent A. Baxter, Temecula, CA (US); David Dyk, Foothill Ranch, CA (US); Satish Yalamanchili, Irvine, CA (US); and Raphael Gordon, Ladera Ranch, CA (US)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Dec. 6, 2023, as Appl. No. 18/531,282.
Application 18/531,282 is a continuation of application No. 17/393,437, filed on Aug. 4, 2021, granted, now 11,878,105.
Claims priority of provisional application 63/065,699, filed on Aug. 14, 2020.
Prior Publication US 2024/0100237 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/00 (2006.01); A61F 9/007 (2006.01)
CPC A61M 1/774 (2021.05) [A61F 9/00745 (2013.01); A61M 2205/3331 (2013.01); A61M 2210/0612 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical system, comprising:
an irrigation conduit in fluid communication with a handpiece and configured to carry fluid toward a surgical site;
an aspiration conduit in fluid communication with the handpiece and configured to carry fluid away from the surgical site;
an aspiration pump configured to create a vacuum pressure in the aspiration conduit to draw fluid through the aspiration conduit towards a drain reservoir;
a venturi reservoir configured to hold fluid at a controlled reservoir pressure;
a valve fluidically coupled to the venturi reservoir; wherein the valve comprises:
one or more first channels to provide fluid communication between the venturi reservoir and the aspiration conduit;
one or more second channels to provide fluid communication between the venturi reservoir and the aspiration pump;
a first pressure sensor configured to detect a pressure associated with the surgical site; and
wherein the system is configured to control the valve in response to the pressure detected by the first pressure sensor.