Surgery – Instruments – Cutting – puncturing or piercing
Patent
1993-05-12
1995-09-12
Pellegrino, Stephen C.
Surgery
Instruments
Cutting, puncturing or piercing
604 22, A61B 1732, A61B 1770
Patent
active
054493706
ABSTRACT:
A blunt tipped trocar which uses ultrasonic energy in the form of vibrations to assist a user in penetrating tissue. In one embodiment of the invention, a feedback mechanism is provided which senses a variation in load on the trocar tip and adjusts the ultrasonic energy level of the vibrating tip in accordance with the load condition. Another embodiment of the invention provides a trocar with a self-contained ultrasonic generator.
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Ethicon Inc.
Mulcare Nancy
Pellegrino Stephen C.
Schmitt Susan M.
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