Patent ID: 8430841
Filing Date: 2013-04-30
Classification: A61F,A61M

Abstract:
1. A phacoemulsification system, comprising: a handpiece configured to be placed in an operative relationship with an eye for a surgical procedure; an irrigation fluid source for supplying irrigation fluid to the eye; an aspiration source coupled to the handpiece in order to aspirate the irrigation fluid from the eye through the handpiece; and a control unit for controlling a vacuum in the handpiece, wherein the control unit is configured to control operation of the handpiece based on: wherein the control unit is configured to reduce the maximum allowable vacuum level from the first level to a lower level a predetermined amount of time after detecting an occlusion based on the occlusion parameter, and the control unit is further configured to increase the maximum allowable vacuum level from the lower level to the first level when a current vacuum level is below the lower level.