Ethicon Endo-surgery, Inc.

Ethicon, Gmbh

Cilag International Gmbh

Other

David A Witt

Timothy G Dietz

Jeffrey David Messerly

Kevin L Houser

Frederick E Shelton, IV

Jeffrey L Aldridge

Zhifan F Huang

Mary E Mootoo

David C Yates

Foster B Stulen

Cory G Kimball

Prasanna Malaviya

Craig N Faller

John A Weed, Iii

Ashvani K Madan

Richard William Timm

Matthew C Miller

David Keith Norvell

Stephen J Balek

Chester O Baxter, Iii

Chad Paul Boudreaux

William D Dannaher

John B Schulte

Jason L Harris

Joseph E Young

Richard C Smith

Jerome R Morgan

Jeffrey S Swayze

John A Hibner

Barry C Worrell

Gregory W Johnson

James R Giordano

Craig B Berky

Benjamin M Boyd

Thomas J Sierocuk

Geoffrey S Strobl

Paul B Guerra

Craig T Davis

Catherine A Corbett

Douglas J Turner

Daniel W Price

Andrew T Beckman

John V Hunt

Omar J Vakharia

Gavin Martin Monson

Kyle P Moore

William Eugene Clem

Tamara S Widenhouse

Christopher J Schall

Nathan Daniel Grubbs

Thomas E Adams

Eric M Roberson

Robert J Laird

William C Horton

John F Cummings

Peter K Shires

Daniel James Prenger

Eitan T Wiener

Daniel J Mumaw

Gregory A Trees

Benjamin D Dickerson

Donna L Korvick

Patrick A Weizman

Kevin D Felder

Randal T Byrum

Paul T Franer

Paul F Riestenberg

Robert J Beetel, Iii

Jonathan T Batross

William A Olson

Michael D Cronin

Jeffery Kirk

Matthew D Holcomb

Rebecca J Mollere

Michael J Vendely

William Bruce Weisenburgh, Ii

Michael J Stokes

Shailendra Kumar Parihar

Eugene L Timperman

Galen C Robertson

Ryan M Asher

Michael S Cropper

Aaron C Voegele

Scott A Woodruff

Joseph Charles Hueil

Gary B McAlister

Brian F Dinardo

Michael R Lamping

Amy L Marcotte

Gregory D Bishop

Aron O Zingman

James A Woodard, Jr

Shan Wan

Jesse J Kuhns

Stuart K Morgan

Mark Tsonton

Brian D Bertke

David Alexander Monroe

Kip M Rupp

Edward G Chekan

Aspects of the present disclosure include control systems of an electrosurgical system for managing the flow of fluid, such as saline, and rates of aspiration or suction, in response to various states of conditions at a surgical site. The control system(s) may monitor and adjust to impedance at the surgical site, temperature of the surgical tissue, and/or RF current of electrodes, and may account for certain undesirable conditions, such as the electrodes sticking. The control systems may include various automatic sensing scenarios, while also allowing for several manual conditions.

Systems and methods for managing fluid and suction in electrosurgical systems

An ultrasonic surgical blade includes a body having a proximal end, a distal end, and an outer surface. The distal end is movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the proximal end. At least a portion of the outer surface of the body comprises a lubricious coating adhered thereto. The lubricious coating has a coefficient of friction that is less than the coefficient of friction of the outer surface of the body.

Ultrasonic surgical blades

An end effector of an electrosurgical device may include a discharge port in communication with a first fluid path, an aspiration port in communication with a second fluid path, a first and second electrode, and a diverter in mechanical communication with the two electrodes. The diverter may receive, on its surface, a fluid emitted by the discharge port, and maintain a contact of the fluid with the first and second electrodes. The diverter may be further configured to prevent an aspiration, by the aspiration port, of the fluid on its surface. An electrosurgical device may include a source port in communication with a first fluid path, an evacuation port in communication with a second fluid path, a first and second electrode, and a housing. The device may include a shaft extending distally from the housing and the end effector as described above.

Electrosurgical instrument with fluid diverter

A surgical apparatus comprises a transducer assembly and a shaft assembly. The transducer assembly is operable to convert electrical power into ultrasonic vibrations. The shaft assembly comprises an ultrasonic waveguide, a sheath, a shroud, and a torque transfer assembly. The waveguide is configured to couple with the transducer assembly. The waveguide is disposed within the sheath. The sheath extends through the shroud. The torque transfer assembly is contained within the shroud. The torque transfer assembly is configured to transfer a predetermined range of torque from the shroud to the waveguide to thereby couple the waveguide with the transducer assembly. The torque transfer assembly is further configured to prevent transfer of torque from the shroud to the waveguide beyond an upper limit of the predetermined range.

Methods and features for coupling ultrasonic surgical instrument components together

An ultrasonic instrument comprises an ultrasonic transducer, an acoustic waveguide, and an ultrasonic blade. The blade includes a pair of obliquely extending edges. The obliquely extending edges diverge away from the longitudinal axis of the waveguide and away from each other along respective paths extending distally in relation to the waveguide. A distal portion of the blade is wider than a proximal portion of the blade along a plane. The blade further includes a curved distal edge and several laterally presented surfaces. The laterally presented surfaces may provide combinations of concave and convex curvatures. The laterally presented surfaces may be angled and/or curved along one or more orthogonal planes associated with the longitudinal axis of the waveguide.

Ultrasonic surgical blade

An apparatus for operating on tissue comprises a shaft, an acoustic waveguide, and an end effector. The acoustic waveguide extends along the shaft and is configured to transmit ultrasonic vibration. The end effector comprises an ultrasonic blade and a clamp arm. The ultrasonic blade is in acoustic communication with the acoustic waveguide. The clamp arm is pivotable toward the ultrasonic blade. The end effector defines a first longitudinal region and a second longitudinal region. The end effector is configured to clamp tissue between the clamp arm and the ultrasonic blade in the first longitudinal region. The end effector is configured to sever tissue with the ultrasonic blade in the second longitudinal region.

Ultrasonic surgical shears with clamping feature

An apparatus includes a shaft assembly and an end effector. The shaft assembly includes a first coupling member and a second coupling member. The first coupling member and the second coupling member are configured to flex toward each other from a first position to a second position. The first coupling member and the second coupling member define a pivot axis in the first position. The end effector includes an ultrasonic blade and a clamp arm. The clamp arm is configured to couple or decouple with the shaft assembly when the first coupling member and the second coupling member are in the second position. The clamp arm is configured to pivot toward and away the ultrasonic blade about the pivot axis when the first coupling member and the second coupling member are in the first position.

Ultrasonic surgical instrument with blade replacement features

A surgical apparatus comprises a body, a shaft assembly, and an end effector. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with an ultrasonic transducer via an acoustic waveguide that extends through the shaft assembly. The clamp arm is configured to pivot about a first pivot point toward and away from the ultrasonic blade along a first angular path from a first position to a second position to thereby provide a tissue sealing mode of operation. The clamp arm is further configured to pivot about a second pivot point toward and away from the ultrasonic blade along second angular path from the second position to a third position to thereby provide a tissue cutting and sealing mode of operation. The second pivot point is proximal to the first pivot point.

Ultrasonic surgical instrument with dual modes

A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.

Ultrasonic device for cutting and coagulating

A bone cutting surgical instrument includes features to mitigate heat generation during use. Excessive heat can be detrimental to bone health as well as to the instrument itself. In one example a liquid dispensing feature provides a flow of cooling liquid to an ultrasonic blade via a lumen in a waveguide of the instrument. In another example, the blade has a serrated edge with a plurality of teeth arranged in a pattern to provide dimension and space during cutting actions. In another example, the blade has an oversize distal portion that creates an oversize slot when cutting to avoid excessive contact between the cut bone and proximal portions of the blade. In another example the blade includes an irrigation slot and also a micro slot in a distal end of the blade that connects with the irrigation slot.

Ultrasonic surgical instrument blade with heat reduction feature

An end effector of an electrosurgical device may include a first body, a first electrode on the left side of the first body, and a second electrode on the right side of the first body. The first and second electrodes may be configured to receive electrosurgical energy to treat tissue in a target treatment zone. The end effector may also include a fluid aspiration port in fluid communication with a fluid path. The fluid aspiration port may be configured to remove a material from the target treatment zone.

Flexible electrosurgical instrument

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Maineville, OH, United States of America

David A Witt