Image Processing Based Vacuum Surge Detection

Abstract: a phacoemulsification system and method, the system having a probe with a needle at its distal end, the needle configured to be inserted into a patient's eye, the probe having an ultrasonic transducer; an aspiration line fluidly coupled with the needle; an avs system configured to control fluid flow in the aspiration line; and a processor, configured to: obtain a first set of images having a first image depicting a part of the needle and a particle of a lens of the eye occluding an aspiration line of the needle; obtain a second image depicting the part of the needle, the second image captured later than the first image; determine based on the first image and the second image whether an aspiration-stopping criteria is met; and subject to the aspiration-stopping criteria being met, control the avs system to restrict fluid flow along the aspiration line.

Inventor(s): Assaf Govari, Andres Claudio Altmann

CPC Classification: A61F9/00736 ({Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments ( takes precedence)})

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