Ethicon Endo-surgery, Inc.

Ethicon, Gmbh

Cilag International Gmbh

Devicor Medical Products, Inc.

Richard F Schwemberger

Frederick E Shelton, IV

Charles J Scheib

Brett E Swensgard

Bret William Smith

Christopher C Miller

John P Measamer

Daniel J Abbott

Richard L Leimbach

Brian F Dinardo

Chad Paul Boudreaux

David C Yates

Michael S Cropper

Ryan J Laurent

William David Kelly

James A Woodard, Jr

Johnny H Alexander, Iii

Kevin L Houser

Salvatore Privitera

Dean B Bruewer

Rodney V Clingaman

Jerome R Morgan

Jeffrey S Swayze

William T Donofrio

William D Fox

Robert Perrin Gill

Christopher J Schall

Robert J Simms

John N Ouwerkerk

Craig S Smith

William R Stager

Omar J Vakharia

Randy R Stephens

Darrel M Powell

Mark D Overmyer

Emily A Schellin

David T Martin

Richard Michael Harper

Richard C Smith

Kevin D Sackett

Peter Michael Wukusick

Jason E Zerkle

Brian W Bear

Matthew H Bolton

Mary E Schramm

Jeffrey C Gagel

Wendy A Kerr

Michael L Kruszynski

Timothy E Goode

Michael T Mather

Joseph T Kluener

Jonathan A Coe

Michael A Murray

Jason M Rector

John L Stammen

David J Keilholz

James D Hughett

Mark S Ortiz

Gary W Knight

Katherine J Schmid

Patrick A Weizman

Jason R Lesko

Michael J Miller

Joseph F Paraschac

William J Zwaskis

Atul M Godbole

Michael V Sherrill

John C Wright

Jason A Born

Gina M Szweda

Gregory J Bakos

John A Hibner

Eitan T Wiener

Anil K Nalagatla

James R Giordano

Steven G Hall

John V Hunt

David L Hunt

Ashvani K Madan

Kevin Ross Doll

Scott A Woodruff

Federico Bilotti

Thomas Edward Albrecht

Michael J Andreyko

Sudhir B Patel

John F Cummings

Scott D Wampler

Douglas J Turner

Anthony T Nguyen

Douglas Jon Siebenaler

John M Collins

Dean L Garner

John J Price

Robert G Cook

Pamela K Jacobs

Patrick M Schleitweiler

Edward J Biehle, Iv

Charles A Hansford

Harry C Parkhurst

Gary Whipple

A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The stapler further includes a lockout assembly configured to control firing of the stapling assembly. The lockout assembly may include one or more switches, the actuation of which is configured to prevent or permit firing of the stapling assembly. The lockout assembly may additionally or alternatively include one or more mechanical lockout features configured to control firing of the stapling assembly.

Surgical stapler with anvil seating detection

Various embodiments are directed to a powered surgical instrument for cutting and fastening tissue. The instrument may comprise an end effector comprising a first jaw member and a second jaw member. The second jaw member may be coupled to move relative to the first jaw member from an open position, where the jaw members are apart from one another, to a closed position. The end effector may also comprise a firing bar positioned to fire by translating within the end effector when the first and second jaw members are in the closed position. Additionally, the surgical instrument may comprise a drive device, a clamping trigger and a control circuit. The drive device may be mechanically coupled to the firing bar. The clamping trigger may be mechanically coupled to the end effector such that actuation of the clamping trigger causes the second jaw member to pivot towards the first jaw member. The control circuit may comprise a firing switch, a clamp switch, a latching device and an end-of-stroke sensor. The firing switch may be configured to be in electrical communication with a power supply for powering the drive device and in electrical communication with the drive device. The clamp switch may be in mechanical communication with the clamping trigger. The latching device may be in electrical communication with the clamp switch, the power supply and the drive device. The end-of-stroke switch may be in electrical communication with the latching device. Additionally, the firing switch may be electrically connected to, upon actuation, connect the power supply to the drive device via a first connection comprising the latching device and the firing switch. Further, the end-of-stroke switch may be electrically connected to, upon sensing an end of a stroke of the firing bar, cause a change in a state of the latching device to break the first connection between the power supply and the drive device.

Surgical instrument having a power control circuit

In one general aspect, various embodiments of the present invention can include a motorized surgical cutting and fastening instrument having a drive shaft, a motor selectively engageable with the drive shaft, and a manual return mechanism configured to operably disengage the motor from the drive shaft and retract the drive shaft. In at least one embodiment, a surgeon, or other operator of the surgical instrument, can utilize the manual return mechanism to retract the drive shaft after it has been advanced, especially when the motor, or a power source supplying the motor, has failed or is otherwise unable to provide a force sufficient to retract the drive shaft.

Powered surgical cutting and stapling apparatus with manually retractable firing system

An apparatus includes a body, a shaft, a stapling head assembly, and an anvil. The body includes a motor, a first user input feature, and a second user input feature. The first user input feature is operable to activate the motor. The shaft extends distally from the body. The stapling head assembly is positioned at a distal end of the shaft. The stapling head assembly includes an anvil coupling feature, at least one annular array of staples, and a staple driver. The second user input feature is operable to drive the anvil coupling feature longitudinally. The staple driver is operable to drive the at least one annular array of staples. The motor is operable to drive the staple driver. The anvil is configured to couple with the anvil coupling feature. The anvil is further configured to deform the staples driven by the staple driver.

Methods and systems for performing surgical stapling

A method for resetting a stapling apparatus includes providing an apparatus with a cam member in a fired position. A circuit of the apparatus is then changed from a first polarity state to a second polarity state. A motor of the apparatus is then activated to rotate the cam member from a fired position back to a home position while the circuit is in the second polarity state.

Surgical stapler with reversible polarity

Methods and systems for performing circular stapling

Various embodiments are directed to battery packs for use with surgical instruments. The battery packs may comprise a plurality of cells and at least a portion of the plurality of cells may not be electrically connected to one another. The battery packs may comprise a switch or other mechanism for interconnecting the plurality of cells and may also comprise, or be used in conjunction with, a discharge switch or plug configured to electrically connect an anode of the battery pack to a cathode of the battery pack, for example, via a resistive element.

Surgical instrument battery comprising a plurality of cells

Powered surgical system with manually retractable firing system

In various embodiments, a surgical instrument comprising an end effector and a handle comprising an opening and an access panel covering the opening is disclosed. The surgical instrument further comprises a motor, a power source, a firing member movable through a staple firing stroke and a retraction stroke, an end-of-stroke switch configured to be actuated to automatically retract the firing member through the retraction stroke, and a bailout switch configured to prevent power from flowing from the power source to the motor when the bailout switch is in an open state and permit power to flow from the power source to the motor when the bailout switch is in a closed state. A user of the surgical instrument is provided access to a retraction lever to manually retract the firing member through the retraction stroke when the access panel is in the open position.

A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, a motor, a drive assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the drive assembly to thereby translate the firing assembly. A resilient member biases the firing assembly proximally. Through cooperation between the firing assembly and the resilient member, the firing assembly is driven distally and proximally to complete a firing stroke in response to rotation of the drive assembly through a single revolution.

Surgical stapler with rotary cam drive

Various embodiments are directed to battery unit for use with surgical instruments. The battery units may comprise a plurality of cells and include a translatable discharge drain. When attached to the surgical instrument, the discharge drain may electrically connect an anode of the battery unit to a cathode of the battery unit, for example, via a resistive element in order to drain the battery unit.

Power control arrangements for surgical instruments and batteries

Growing community of inventors

Cincinnati, OH, United States of America

Richard F Schwemberger