Repetitive progressive axial displacement pattern for...

Details Repetitive progressive axial displacement pattern for... Repetitive progressive axial displacement pattern for...

2005-09-06

2005-09-06

Lucchesi, Nicholas D. (Department: 3763)

Surgery

Means for introducing or removing material from body for...

With means for cutting, scarifying, or vibrating tissue

C606S107000, C606S169000

Reexamination Certificate

active

06939317

ABSTRACT:
A method to improve phacoemulsification efficiency by providing bursts of axial ultrasonic activity in synchronization with a fraction of a lower frequency axial oscillatory activity, the fraction corresponding to the portion of the low frequency signal that displaces toward the lens fragments and distally from the phacoemulsification hand-piece. Ultrasonic bursts synchronized with displacement of the phacoemulsification needle tip toward the lens tissue increases efficiency allowing the reduction of the required ultrasonic power minimizing heat generation and cavitation.

REFERENCES:
patent: 5733256 (1998-03-01), Costin
patent: 5808396 (1998-09-01), Boukhny
patent: 5843109 (1998-12-01), Mehta et al.
patent: 6402769 (2002-06-01), Boukhny
patent: 2002/0193817 (2002-12-01), Lal et al.

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