Control system for a phacoemulsification handpiece

Details Control system for a phacoemulsification handpiece Control system for a phacoemulsification handpiece

1997-10-15

1999-08-17

Dawson, Glenn K.

Surgery

Instruments

Cutting, puncturing or piercing

310316, 331 16, A61B 1732, H03L 700, H01L 4104

Patent

active

059386770

ABSTRACT:
A system and method for tuning and controlling ultrasonic handpieces by varying the frequency of the drive signal that is fed to the handpiece by a discrete dither increment. A digital signal processor may be used to measure the response of the handpiece to the varying drive signal and compare these responses to determine the probable value of the actual series resonance. The output of the digital signal processor is used to generate control parameters embodied within an appropriate control signal, which is fed to the source of the drive signal in order to alter aspects of the drive signal.

REFERENCES:
patent: 3589363 (1971-06-01), Banko et al.
patent: 3964487 (1976-06-01), Judson
patent: 4126137 (1978-11-01), Archibald
patent: 4180074 (1979-12-01), Murry et al.
patent: 4223676 (1980-09-01), Wuchinich et al.
patent: 4428748 (1984-01-01), Peyman et al.
patent: 4525790 (1985-07-01), Nakamura
patent: 4535759 (1985-08-01), Polk et al.
patent: 4639690 (1987-01-01), Lewis
patent: 4642581 (1987-02-01), Erickson
patent: 4703213 (1987-10-01), Gasler
patent: 4808948 (1989-02-01), Patel et al.
patent: 4933843 (1990-06-01), Scheller et al.
patent: 4973876 (1990-11-01), Roberts
patent: 5045054 (1991-09-01), Hood et al.
patent: 5112300 (1992-05-01), Ureche
patent: 5139509 (1992-08-01), Ficher et al.
patent: 5160317 (1992-11-01), Costin
patent: 5279547 (1994-01-01), Costin
patent: 5331951 (1994-07-01), Kepley
patent: 5370602 (1994-12-01), Kepley
patent: 5407525 (1995-04-01), Michel et al.
patent: 5431664 (1995-07-01), Ureche et al.
patent: 5520633 (1996-05-01), Costin
patent: 5536272 (1996-07-01), Young et al.
patent: 5808396 (1998-09-01), Boukhny
patent: 5852794 (1998-12-01), Staggs

Affiliated with

Also associated with

Rating

Control system for a phacoemulsification handpiece does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for a phacoemulsification handpiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for a phacoemulsification handpiece will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-310430