Patent ID: 11878105
Assignee: ALCON INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
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 rotary valve located at the venturi reservoir; wherein the rotary 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;
wherein at least one position of the rotary valve provides dual venting by providing fluid communication between the venturi reservoir and the aspiration conduit and 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
a computer configured to control the rotary valve in response to the pressure detected by the first pressure sensor.