US 2011/0034864 A1 · PHACOEMULSIFICATION HANDPIECE PRESSURE BOOSTER

Abstract

In various embodiments, a handpiece may include an irrigation line coupled to an adjacent line reservoir with a piston configured to move within the adjacent line reservoir to increase an irrigation pressure in the irrigation line near a surgical site. In some embodiments, a sensor may be used to detect an occlusion break in the aspiration line and information from the sensor may result in signaling an actuator to move the piston in response to the occlusion break detection to compensate for a vacuum pressure drop associated with the occlusion break. The handpiece may further include a purge bypass line between the irrigation line and the adjacent line reservoir to allow flow from the irrigation line to travel through the adjacent line reservoir to purge the adjacent line reservoir.

Claims19

Dependent claims

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.

4 more elements

Dependencies are inferred from the claim text.

Phacoemulsification handpiece pressure booster

Life of this patent

Phacoemulsification handpiece pressure booster

Life of this patent

Abstract

Claims19