Ethicon, Gmbh

Cilag International Gmbh

Ethicon Endo-surgery, Inc.

Ethicon Surgery, LLC

Robert L Koch, Jr

Frederick E Shelton, IV

Mark D Overmyer

Thomas W Huitema

Jeffrey S Swayze

Andrew T Beckman

Jason L Harris

Chester O Baxter, Iii

Eitan T Wiener

Daniel W Price

Jeffrey L Aldridge

Shailendra Kumar Parihar

Matthew C Miller

James R Giordano

Jeffrey P Wiley

Robert J Beetel, Iii

Nathan J Price

Jeffrey David Messerly

Nicholas G Molitor

Brian T Noyes

Dario Vitali

Daniel J Abbott

Brian D Bertke

Aaron C Voegele

Kevin A Larson

Mark A Davison

Richard P Fuchs

Michael D Auld

Gary S Jaworek

Foster B Stulen

Anil K Nalagatla

John Eric Hein

Christopher A Denzinger

Joseph Allen Brotz

Kevin L Houser

Richard L Leimbach

Bennie Thompson

Daniel L Baber

Jesse J Kuhns

John Scott Kimsey

Benjamin Lawrence Bertram

Robert P Fuchs

Michael J Stokes

John P Measamer

Joshua D Young

Kenneth C Miller

Eric W Thompson

Jeffery Kirk

Daniel J Ulrich

Anthony T Nguyen

Robert F Welch

Jerry Morgan

Rick P Fuchs

David K Norvelle

Jerome R Morgan

John A Hibner

Taylor W Aronhalt

Mark S Zeiner

Steven G Hall

William Eugene Clem

Morgan Robert Hunter

Christopher W Widenhouse

Randal T Byrum

Joseph Charles Hueil

Nathan Daniel Grubbs

Jason Merrill Jones

Austin E Wise

Thomas J Sierocuk

Kris Eren Kallenberger

Jason D Jones

Narinderjit S Sambi

Darwin L Schultz

Mark E Tebbe

Kirk M Nicola

Steven W Hamblin

Vincenzo Barbato

Charles A Hansford

James A Vandewalle

Janna M Burrell

John A Kretchman

John I Izuchukwu

Navneet T Sharma

Mark Thomas Davidson

Richard R Schweet

John J Mertz

Larry D Pool

Eric J Butterfield

Rachel M Clair

Jeff Kirk

David Wolf

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

A surgical stapler includes an anvil half and a cartridge half. The anvil half includes an anvil channel member and an anvil surface. The cartridge half releasably couples with the anvil half and includes a cartridge channel member having a distal portion that receives a staple cartridge, and a latching member coupled to the cartridge channel member and movable between open and closed positions. A resilient member is arranged at a proximal end of one of the anvil half or the cartridge half, and a projection is arranged at a proximal end of the other of the anvil half or the cartridge half. The resilient member is configured to contact and releasably couple with the projection to thereby couple the proximal end of the anvil half with the proximal end of the cartridge half while the latching member is in the open position.

Features to align and close linear surgical stapler

An end effector is disclosed comprising a cartridge channel, a staple cartridge positionable in the cartridge channel, and a firing assembly configured to lock itself if the staple cartridge is not positioned in the cartridge channel. Moreover, the firing assembly is configured to lock itself if the staple cartridge has been at least partially spent.

Shaft assembly comprising a lockout

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 surgical tool includes a drive housing removably coupled to a tool driver of a robotic surgical system, a shaft extending from the drive housing, an end effector arranged at an end of the shaft, and a computer system. The computer system is programmed to send a command signal to a motor of the tool driver to drive rotation of a drive shaft mounted within the drive housing, monitor torque and rotational motion of the motor with a torque sensor and a rotary encoder, respectively, in communication with the computer system, measure an unexpected change in the torque or the rotational motion of the motor with the torque sensor or the rotary encoder when the surgical tool is manually bailed out by manually rotating the drive shaft and backdriving the motor, report the unexpected change as a bailout signal, and disable the surgical tool once the bailout signal is received.

Disabling surgical tools due to manual bailout

A surgical stapling instrument comprising a modular end effector and a housing assembly is disclosed. The modular end effector comprises a closure beam to receive a staple cartridge therein, a rotatable closure driver, a firing bar comprising a knife, and a rotatable firing driver. The closure beam is translatable through a closure stroke based on rotation of the rotatable closure driver, and the firing bar is translatable through a firing stroke based on rotation of the rotatable firing driver. The modular end effector is selectively coupleable to the housing assembly between a coupled configuration and an uncoupled configuration, and the modular end effector comprises a closure actuator and a firing actuator. The rotatable closure driver and the rotatable firing driver are to rotate based on the modular end effector being coupled to the housing assembly and actuation of the closure actuator and the firing actuator, respectively.

Surgical instruments having modular end effector selectively coupleable to housing assembly

A trocar assembly includes a trocar housing that defines a working chamber, and a cannula having opposing proximal and distal ends and defining a lumen that extends between the proximal and distal ends. One or more windows are defined in the cannula at or near the distal end, and one or more compliant deflection devices are arranged at or near the distal end and at least partially receivable within the one or more windows. Each compliant deflection device includes a radial biasing member that extends radially inward toward a centerline of the cannula.

Compliant deflection devices for trocar assemblies

A cover for an articulation joint that is supported in an elongate shaft assembly of a surgical instrument that is operably coupled to a surgical end effector that includes at least one end effector conductor therein. The cover includes at least one electrically conductive pathway that extends from the distal end of the cover to form an electrically conductive pathway from the end effector conductor to a shaft conductor on the elongate shaft assembly while facilitating operation of the articulation joint. Various conductor arrangements facilitating the passage of electrical current between an end effector to a control system across the articulation joint are also disclosed.

Articulatable surgical instruments with conductive pathways for signal communication

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 method of operating a surgical tool includes coupling a drive housing to a tool driver of a first robotic surgical system, driving rotation of a drive shaft mounted within the drive housing and thereby commencing a firing sequence of the end effector, and setting a bailout Boolean value as 'true' in an internal computer of the drive housing upon commencing the firing sequence, and storing the bailout Boolean value in a memory of the internal computer. Manually bailing out the surgical tool before completing the firing sequence, installing the surgical tool on a tool driver of a second robotic surgical system, and querying the memory of the internal computer with the second robotic surgical system and recognizing the bailout Boolean value as 'true'. Initiating one or more remedial actions to ensure safe operation of the surgical tool on the second robotic surgical system.

A surgical tool includes a drive housing, a shaft extending from the drive housing, an end effector at an end of the shaft and having opposing jaws and a cutting element, and an unclamp lockout mechanism. The unclamp lockout mechanism including a pawl rotatably mounted to the shaft and positioned proximal to a closure yoke operatively coupled to the shaft, the pawl being pivotable between a stowed position, where the pawl is received within an aperture of the shaft, and a deployed position, where the pawl protrudes out of the aperture, and a biasing device that biases the pawl toward the stowed position. When the pawl is in the stowed position, the closure yoke is movable to a proximal position over at least a portion of the pawl to open the opposing jaws. When the pawl is in the deployed position, the closure yoke is prevented from moving to the proximal position.

Unclamp lockout mechanism for a surgical tool

A surgical system comprising an electric motor and a surgical instrument is disclosed. The surgical instrument comprises a housing, a shaft extending from the housing, a fastener cartridge, an anvil, a translatable drive member, and a rotatable actuator knob. The housing comprises an input shaft operably coupled to the electric motor. The input shaft is rotatable in a first mode by the electric motor. The fastener cartridge comprises a plurality of fasteners removably stored therein. The anvil is configured to deform the fasteners. The translatable drive member is configured to move the anvil toward and away from the fastener cartridge. The translatable drive member is movable by the electric motor in the first mode. The rotatable actuator knob is configured to be rotated multiple full rotations in a second mode to manually cause the input shaft to move the anvil.

Surgical system including an electric motor and a surgical instrument

A surgical instrument can comprise a handle, a motor, and a shaft extending from the handle. The handle and/or the shaft can define a longitudinal axis. The surgical instrument can further comprise a fastener cartridge comprising a plurality of fasteners removably stored therein, an anvil configured to deform the fasteners, a closure drive configured to move the anvil toward and away from the fastener cartridge which is rotatable about the longitudinal axis, and a firing drive configured to deploy the fasteners from the fastener cartridge which is rotatable about the longitudinal axis. The surgical instrument can further comprise a transmission comprising a first operating configuration which connects the motor to the closure drive and a second operating configuration which connects the motor to the firing drive.

Powered surgical stapler

Stapling assembly comprising a retraction drive

Growing community of inventors

Cincinnati, OH, United States of America

Robert L Koch, Jr