Surgery – Instruments – Cutting – puncturing or piercing
Reexamination Certificate
2006-02-14
2006-02-14
Ho, Tan-Uyen T. (Department: 3731)
Surgery
Instruments
Cutting, puncturing or piercing
C323S212000, C323S215000, C323S219000
Reexamination Certificate
active
06997935
ABSTRACT:
A phacoemulsification system includes a phacoemulsification handpiece including a cutting tip ultrasonically vibrated by an ultrasonic transducer. A power supply is provided for driving the ultrasonic transducer at a resonant frequency of the transducer and cutting tip and varying power to the transducer, in response to loading of the cutting tip, by phase shifting drive signals to the resonant converter which supplies power to the transducer.
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Anderson David L.
Elsen Nate G.
Fellinger Michael W.
Mehta Pravin V.
Advanced Medical Optics Inc.
Advanced Medical Optics, Inc.
Ho Tan-Uyen T.
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