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Eichmann Stephen E, Kowalski Karen M, Kramer Kenneth S, Lamping Michael R, Madan Ashvani K, Miller Matthew C, Voegele Aaron C, Wiener Eitan T, Young Joseph E: Ultrasonic device for cutting and coagulating. Ethicon Endo Surgery, Eichmann Stephen E, Kowalski Karen M, Kramer Kenneth S, Lamping Michael R, Madan Ashvani K, Miller Matthew C, Voegele Aaron C, Wiener Eitan T, Young Joseph E, JOHNSON Phillip S, April 26, 2007: WO/2007/047380 (79 worldwide citation)

An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation, and fine dissection required in fine and delicate surgical procedures. The assembly includes a clamping mechanism, including a clamp arm cam-mounted at the distal portion of the instrument, which is ...


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Kramer Kenneth S, Houser Kevin L: Active load control of ultrasonic surgical instruments. Ethicon Endo Surgery, June 20, 2001: EP1108394-A2 (56 worldwide citation)

Ultrasonic instruments, and particularly solid core ultrasonic instruments, are advantageous because they may be used to cut and/or coagulate organic tissue using energy in the form of mechanical vibrations transmitted to a surgical end-effector at ultrasonic frequencies. The present invention provi ...


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Wiener Eitan T, Stulen Foster, Madan Asvani K, Kramer Kenneth S: Output displacement control by phase margin in ultrasonic surgical hand piece. Ethicon Endo Surgery, June 25, 2002: JP2002-177292 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide an improved system and method for controlling the output displacement in an ultrasonic surgical hand piece.SOLUTION: This ultrasonic surgical hand piece is driven by output displacement correlated to the phase margin which is the difference between the resonance freq ...


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Muir Stephanie J, Proch Francis S, Dutta Sudeep N, Kramer Kenneth S: Hand activated ultrasonic instrument. Ethicon Endo Surgery, Muir Stephanie J, Proch Francis S, Dutta Sudeep N, Kramer Kenneth S, JOHNSON Philip S, December 29, 2004: WO/2004/112844 (1 worldwide citation)

An ultrasonic surgical clamp coagulator apparatus (120) is configured to effect cutting, coagulation, and clamping of tissue by cooperation of a clamping mechanism of the apparatus with an associated ultrasonic end-effector. The handle of the apparatus is configured to permit hand activation for cut ...


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WIENER EITAN T, KRAMER KENNETH S, STULEN FOSTER B, MADAN ASHVANI K, HOUSER KEVIN L: Improved surgical instruments, Verbesserte chirurgische Instrumente, Instruments chirurgicaux améliorés. ETHICON ENDO SURGERY, November 16, 2011: EP2386256-A2

A surgical device. The surgical device may comprise a transducer, an end effector, a generator and a control circuit. The transducer may be configured to provide vibrations. The end effector may be coupled to the transducer and may extend from the transducer along the longitudinal axis. The generato ...


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Kramer Kenneth S, Wiener Eitan T, Donofrio William T, Houser Kevin, Stulen Faster B: Method for calculating transducer capacitance to determine transducer temperature. Ethicon Endo Surgery, May 29, 2002: EP1208803-A2

A method for calculating the capacitance of a transducer (C0) without knowing the exact resonance frequency of a transducer/blade combination is achieved by sweeping across a broad frequency range which contains resonant and non-resonant frequencies where C0 can be measured. A pre-defined frequency ...


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Eichmann Stephen E, Kowalski Karen M, Kramer Kenneth S, Lamping Michael R, Madan Ashvani K, Miller Matthew C, Voegele Aaron C, Wiener Eitan T, Young Joseph E: Ultrasonic device for cutting and coagulating. Ethicon Endo Surgery, Su Juan, August 19, 2009: CN200680042602

An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation, and fine dissection required in fine and delicate surgical procedures. The assembly includes a clamping mechanism, including a clamp arm cam-mounted at the distal portion of the instrument, which is ...


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Kramer Kenneth S, Wiener Eitan T, Donofrio William T, Houser Kevin, Stulen Foster B: Methode de calcul de la capacite dun transducteur pour determiner sa temperature, Method for calculating transducer capacitance to determine transducer temperature. Ethicon Endo Surgery, Ethicon Endo Surgery, Ogilvy Renault Sencrl, September 28, 2010: CA2359742

A method for calculating the capacitance of a transducer (Co) without knowing the exact resonance frequency of a transducer/blade combination is achieved by sweeping across a broad frequency range which contains resonant and non-resonant frequencies where Co can be measured. A pre-defined frequency ...


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WIENER EITAN T, STULEN FOSTER, MADAN ASHVANI K, KRAMER KENNETH S: COMMANDE A DEPLACEMENT DE SORTIE FAISANT APPEL A LA MARGE DE PHASE DUNE PIECE A MAIN CHIRURGICALE ULTRASONORE, OUTPUT DISPLACEMENT CONTROL USING PHASE MARGIN IN AN ULTRASONIC SURGICAL HAND PIECE. ETHICON ENDO SURGERY, ETHICON ENDO SURGERY, NORTON ROSE CANADA S E N C R L S R L, September 29, 2009: CA2359435

An ultrasonic surgical hand piece is caused to be driven with an output displacement that is correlated with the phase margin, which is the difference of the resonant frequency and the anti-resonant frequency of the hand piece. A frequency sweep is conducted to find the resonant frequency and the an ...


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