Selectively moveable valve elements for aspiration and irrigation circuits

摘要

Various arrangements of fluidics systems are disclosed. In one arrangement, an aspiration circuit for a fluidics system is disclosed that selectively controls aspiration. The aspiration circuit comprises an aspiration line operatively connected to a surgical instrument, an aspiration exhaust line operatively connected to a waste receptacle; an aspiration vent line connected at a first end to the aspiration line; and a selectively variable vent valve operatively connected to the aspiration vent line. The variable vent valve may be selectively moved to vary aspiration pressure within the aspiration line. Other fluidics systems are disclosed that include a selectively positionable irrigation valve that may also be incorporated into a fluidics system that includes a variable vent valve.

主权项

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.