Phaco thermal control system
First Claim
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1. A phacoemulsification system for regulating fluid flow and energy into an eye during ocular surgery, comprising:
- a handpiece;
a control console configured to provide phaco power to the handpiece, irrigation fluid to an eye; and
an aspiration source for removing fluid from the eye; and
a matrix comprising phaco power levels and fluid flow conditions that will not generate sufficient heat to create damage to eye tissue within the eye,wherein the system is configured to control at least one of the phaco power or fluid flow based upon an amount of thermal energy delivered to the eye over a predetermined period of time.
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Abstract
Control apparatus for an ultrasonic phacoemulsification handpiece utilizes flow rates and temperature measurements as well as power provided to a handpiece for calculating a matrix of power level duty cycle combination that would not generate sufficient heat to create a burn in eye tissue and either prevent operation of handpiece in the matrix or alert a surgeon of such use.
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Citations
10 Claims
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1. A phacoemulsification system for regulating fluid flow and energy into an eye during ocular surgery, comprising:
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a handpiece; a control console configured to provide phaco power to the handpiece, irrigation fluid to an eye; and an aspiration source for removing fluid from the eye; and a matrix comprising phaco power levels and fluid flow conditions that will not generate sufficient heat to create damage to eye tissue within the eye, wherein the system is configured to control at least one of the phaco power or fluid flow based upon an amount of thermal energy delivered to the eye over a predetermined period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for regulating fluid flow and energy in a control console during ocular surgery, comprising:
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providing a handpiece and a control console; providing a matrix comprising power levels, power duty cycles, and fluid flows that will not generate sufficient heat to create a bum of eye tissue; and controlling at least one of the phaco rower or fluid flow based upon an amount of thermal energy delivered to the eye over a predetermined period of time. - View Dependent Claims (10)
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Specification