Surgery – Instruments – Cutting – puncturing or piercing
Patent
1997-02-28
1999-10-19
Thaler, Michael H.
Surgery
Instruments
Cutting, puncturing or piercing
606185, A61B 1734
Patent
active
059680601
ABSTRACT:
An ultrasonic surgical device includes a transducer assembly adapted to vibrate at an ultrasonic frequency in response to electrical energy. A transmission component having a transmission component adapted to receive ultrasonic vibration from the transducer assembly and to transmit the ultrasonic vibration from a first end to a second end. A braking device is configured to apply a force to the outer surface of the transmission component to dampen the ultrasonic vibration being transmitted from the first end of the transmission rod to the second end of the transmission rod. A method of inserting a trocar cannula into tissue of a patient is also provided. The method includes the steps of providing an ultrasonic trocar obturator having an ultrasonic waveguide including an end effector at a distal end thereof, positioning the trocar obturator within a trocar cannula, positioning the trocar obturator in contact with a wall of said body cavity, and ultrasonicly vibrating the end effector to create a penetration opening. The method further includes advancing the ultrasonic obturator into said penetration opening, detecting when penetration has been completed, applying a braking member to the obturator to dampen the ultrasonic vibration of the end effector, and advancing the trocar cannula into the penetration opening.
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Ethicon Endo-Surgery Inc.
Kreger Verne E.
Thaler Michael H.
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