Ethicon Endo-surgery, Inc.

Ethicon, Gmbh

Cilag International Gmbh

Ethicon Surgery, LLC

Jeffrey P Wiley

Eitan T Wiener

Daniel W Price

Jeffrey L Aldridge

Matthew C Miller

James R Giordano

Robert L Koch, Jr

Robert J Beetel, Iii

Nathan J Price

Brian T Noyes

Jeffrey David Messerly

Daniel J Abbott

Chester O Baxter, Iii

Aaron C Voegele

Lauren S Weaner

John Eric Hein

Joseph Allen Brotz

Kristin L Jambor

Chester O Baxter

Foster B Stulen

John V Hunt

Christopher W Widenhouse

John B Schulte

Danius P Silkaitis

Paul T Franer

Patrick J Swindon

Frederick E Shelton, IV

Daniel J Mumaw

Steven G Hall

Kevin Ross Doll

Mark Tsonton

Aren Calder Hill

Jeffery Kirk

Dustin R Jensen

Richard Patrick Chesnes

Rebecca Jean Nesbitt Spatholt

Andrew S Berkowitz

Christopher Brock Stone

Jason L Harris

David C Yates

Mark S Ortiz

Sean P Conlon

Gavin Martin Monson

William Eugene Clem

Adam R Dunki-Jacobs

Mark A Davison

Sarah Alexandra Worthington

Randal T Byrum

Joshua D Young

Norman D Crawford

Mark E Tebbe

Scott B Killinger

Joseph Thomas Mozloom, Jr

Stephen M Torain

Harry E Payne

Lauren S Weaneer

Joseph Mozloom

Robert L Koch

Chester O Iii Baxter

Swindon Patrick J

Bill Fender

Eitan T Weiner

Iii Chester O Baxter

A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

Surgical generator for ultrasonic and electrosurgical devices

In examples, a method of operating a surgical device comprises disengaging an obturator from a funnel portion of a cannula; removing a shaft portion of the obturator from a cannula lumen of the cannula; disengaging a seal cartridge from the funnel portion of the cannula; and removing the seal cartridge from the funnel portion after removing the shaft portion of the obturator from the cannula lumen.

Cannula assembly

A generator comprising an interface and a control circuit is disclosed. The interface is to electrically couple to an ultrasonic surgical instrument comprising a switch. The switch is configurable between a first switch state and a second switch state. The control circuit is to provide a continuous drive signal to the ultrasonic surgical instrument based on the switch being in the first switch state. The control circuit is to provide a pulsed drive signal to the ultrasonic surgical instrument based on the switch being in the second switch state.

Generator for use with an ultrasonic surgical instrument

A trocar assembly can include a cannula, a seal cartridge, and an obturator. The seal cartridge is configured to be releasably coupled to the cannula and to be disposed at least partially within the cannula in a coupled configuration of the seal cartridge. The obturator is configured to directly latch to the cannula and to extends through the cannula and the seal cartridge in a coupled configuration of the obturator.

Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions. A first response is triggered when the first set of logic conditions is met. A parameter is determined from the at least one electrical signal.

Devices and techniques for cutting and coagulating tissue

A control circuit is disclosed that comprises a resistor and a switch network. The switch network is configured to transition between a plurality of states corresponding to a plurality of operational modes of a surgical instrument. In a first phase of a control signal, the control circuit is configured to communicate surgical instrument information to a surgical generator. In the second phase of the control signal and when the at least one switch of the switch network is in a first state of the plurality of states, the control circuit is configured to provide an output corresponding to one of the plurality of states. In the second phase of the control signal and when the at least one switch of the switch network is in a second state of the plurality of states, the control circuit is configured to provide a second output.

A control circuit configured to receive a control signal that defines a first phase and a second phase from a surgical generator. The control circuit may include a first resistor, a second resistor in parallel with the first resistor, and a switch in series with the second resistor. The switch may be configured to transition between an open state and a closed state corresponding to an operational mode of a surgical instrument. In the first phase of the control signal, the control circuit is configured to communicate surgical instrument information to the surgical generator. In the second phase of the control signal and in the open state of the switch, the control circuit is configured to provide a first output. In the second phase of the control signal and in the closed state of the switch, the control circuit is configured to provide a second output.

Controls systems and methods are provided for controlling a surgical clip applier for applying surgical clips to a vessel, duct, shunt, etc., during a surgical procedure are provided. In an exemplary embodiment, a control system is provided for controlling at least one motor coupled to a drive system on a surgical clip applier device for driving one or more drive assemblies and thereby actuating one or more actuation assemblies. The control system can be configured to communicate with the drive system of the clip applier tool and to control and modify movement of one or more drive assemblies and actuation assemblies based on certain feedback.

Control system for clip applier

A surgical generator is disclosed including an ultrasonic generator module to provide at an ultrasonic drive signal for driving an ultrasonic surgical device and an electrosurgical generator module to provice an electrosurgical drive signal for driving an electrosurgical device. At least one of providing the ultrasonic drive signal or providing the electrosurgical drive signal includes recalling a waveform sample from a look-up table (LUT), modifying the waveform sample to generate a modified waveform based on voltage and current feedback information to pre-distort the waveform sample on a dynamic ongoing basis, indexing each stored voltage and current feedback data pair based on a corresponding LUT sample that was output when the voltage and current feedback data pair was acquired, synchronizing the LUT sample and the voltage and current feedback data pair to correct timing and stability of the pre-distorted waveform sample, and providing the modified waveform to an output stage.

Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. In accordance with the method, a generator is configured to generate at least one time varying electrical signal having a resonant frequency, monitor the resonant frequency of the at least one electrical signal, compare the resonant frequency to a threshold frequency, and trigger a first response of the generator when the resonant frequency crosses the threshold frequency.

Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. In accordance with the method, a generator is configured to generate at least one time varying electrical signal having a resonant frequency, monitor the resonant frequency of the at least one electrical signal, calculate a frequency slope between frequency data points of the time varying electrical signal, where the frequency slope is the change in resonant frequency over time, compare the frequency slope to a threshold frequency slope, and trigger a first response of the generator when the frequency slope crosses the threshold frequency slope.

Various embodiments are directed to an apparatus and method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions.

Growing community of inventors

Milford, OH, United States of America

Jeffrey P Wiley