Patent ID: 9561321
Date: 2017-02-07
CPC Classifications: A61B,A61F,A61M

Claim:
1. An aspiration circuit for a fluidics system for selectively controlling aspiration, comprising: an aspiration line operatively connected to a surgical instrument; an aspiration pump to create an aspiration flow in the aspiration line; an aspiration exhaust line operatively connected to the aspiration pump on one end and to a waste receptacle on an opposing end; an aspiration vent line connected at a first end to the aspiration line between the aspiration pump and the surgical instrument; and 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; wherein the vent valve is a rotary valve that further comprises an input opening, an output opening and a channel that connects the input opening to the output opening; wherein the vent valve may be selectively rotated to selectively position the channel in at least partial communication with the aspiration vent line.