Stryker Corporation

Brett Merkel

Adam Darwin Downey

Mark William Friedman

Darryl D Daniel

Robert Mitchell Baldwin, Ii

Benjamin Fineout

Jonathan Bodnar

Michael Teasdale Smith

Jon Bodnar

Marc Arthur

Anthony Gatica

Ben Fineout

Steve Rolfson, Jr

An aspiration system to control vacuum pressure in an ultrasonic surgical handpiece to result in improved control responsiveness during aspiration. The system comprises a console including a vacuum pump. The system includes a cassette comprising a joint that divides a vacuum path into at least two flow paths. A first joint port couples to a first flow path. A second flow path is coupled to a second joint port, a third flow path is coupled to a third joint port, and a fourth flow path is coupled to a port on a surgical waste receiver. A first sensor senses pressure in the fourth flow path and provides a waste receiver pressure signal. A second sensor senses pressure in the third flow path and provides a tip pressure signal. The controller controls a position of a first vent valve and a second vent valve based on the waste receiver pressure signal and the tip pressure signal, respectively.

Systems and methods for improving control responsiveness during aspiration

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Portage, MI, United States of America

Brett Merkel