Patent ID: 11877952
Assignee: ALCON INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A cassette for a fluidics system, comprising:
an aspiration line that is configured to connect to an external aspiration line connected to a surgical instrument,
an aspiration vent line connected at a first end to the aspiration line;
a selectively variable vent valve operatively connected to the aspiration vent line, wherein the variable vent valve may be selectively moved to selectively change aspiration pressure within the aspiration line;
an irrigation supply line;
an irrigation line having a first end operatively connected to the irrigation supply line and a second end that is configured to connect to an external irrigation line connected to the surgical instrument; and
a selectively positionable irrigation valve that operatively connects the irrigation supply line to the external irrigation line;
wherein the selectively positionable irrigation valve is a rotary valve;
an irrigation pressure sensor and an actuator, the irrigation pressure sensor being positioned to detect irrigation pressure in the irrigation line and the actuator being operatively connected to the vent valve,
wherein the irrigation pressure sensor and the actuator are connected to a controller, and
wherein the controller is operative to initiate the actuator to move the vent valve in response to pressure detected by the irrigation pressure sensor to vary the aspiration pressure within the aspiration line.