Patent ID: 8876751
Filing Date: 2014-11-04
Classification: A61M

Abstract:
1. A handpiece, comprising: a main irrigation line configured to provide fluid to a surgical site; an aspiration line configured to aspirate fluid from the surgical site; an adjacent line reservoir, in the handpiece, fluidly coupled to and branching from the main irrigation line in the handpiece; a piston configured to move within the adjacent line reservoir such that motion of the piston toward the main irrigation line pushes fluid out of the adjacent line reservoir and into the main irrigation line; a sensor, wherein data from the sensor is used to detect an occlusion break in the aspiration line; and an actuator configured to move the piston in response to the occlusion break detection, wherein moving the piston in the adjacent line reservoir increases an irrigation flow to compensate for a vacuum pressure drop associated with the occlusion break.