ULTRASONIC SURGICAL INSTRUMENT WITH BLADE COOLING THROUGH RETRACTION

A surgical apparatus comprises a body, a shaft assembly, an end effector, and a blade cooling system. The shaft assembly couples the end effector and the body together. The shaft assembly comprises an acoustic waveguide and defines an interior space. The acoustic waveguide is configured to couple wi...

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Bibliographic Details
Main Authors FONTANNAZ, Joel, GREMION, Emmanuel, GLUTZ, Lukas, FERIANI, Amir
Format Patent
LanguageEnglish
French
German
Published 20.05.2020
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:A surgical apparatus comprises a body, a shaft assembly, an end effector, and a blade cooling system. The shaft assembly couples the end effector and the body together. The shaft assembly comprises an acoustic waveguide and defines an interior space. The acoustic waveguide is configured to couple with an ultrasonic transducer. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with the ultrasonic transducer. The clamp arm is configured to pivot toward and away from the ultrasonic blade. The shaft assembly comprises an inner tube configured to longitudinally translate to thereby pivot the clamp arm toward and away from the ultrasonic blade. The cooling system is operable to deliver liquid coolant a distal portion of the shaft. A trigger of the body is operable to rotate to thereby translate the ultrasonic blade into and out of the interior space of the shaft assembly to thereby cool the ultrasonic blade.
Bibliography:Application Number: EP20150813160