Stryker Corporation

Michael Teasdale Smith

Adam Darwin Downey

Mark William Friedman

Darryl D Daniel

Robert Mitchell Baldwin, Ii

Benjamin Fineout

Jon Bodnar

Anthony William Gatica

Brett Robert Merkel

Jonathan Bodnar

Brett Merkel

Anthony Gatica

Brett R Merkel

Darryl D Ii Daniel

Anthony W Gatica

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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Bellevue, WA, United States of America

Michael Teasdale Smith