Ethicon Endo-surgery, Inc.

Cilag International Gmbh

Ethicon, Gmbh

Littleford Day, Incorporated

Other

Cllag Gmbh International

Michael J Stokes

Mark S Ortiz

Frederick E Shelton, IV

Mark S Zeiner

Jason L Harris

Chester O Baxter, Iii

Gregory G Scott

Disha V Labhasetwar

William Bruce Weisenburgh, Ii

Christopher J Hess

Foster B Stulen

James Walden Voegele

Kevin D Felder

Jeffrey L Aldridge

Lawrence Crainich

Thomas Edward Albrecht

Jeffrey S Swayze

Gregory J Bakos

David Stefanchik

David N Plescia

Jerome R Morgan

Timothy G Dietz

Ryan J Laurent

Andrew M Zwolinski

Carl J Shurtleff

Jeffrey David Messerly

Richard L Leimbach

Anil K Nalagatla

John E Brady

Charles J Scheib

Jacob Spencer Gee

Ashvani K Madan

James T Spivey

David James Cagle

Matthew S Corbin

Sora Rhee

David C Yates

Kevin L Houser

Mark D Overmyer

Eitan T Wiener

Cory G Kimball

Sean P Conlon

Rudolph Henry Nobis

Omar J Vakharia

Adam R Dunki-Jacobs

Jeffrey Cerier

Michael A Murray

James J Bedi

Michael R Lamping

Daniel F Dlugos, Jr

Chad Paul Boudreaux

Shailendra Kumar Parihar

Craig N Faller

Benjamin D Dickerson

Michael S Cropper

Donna L Korvick

Andrew T Beckman

Bret William Smith

Galen C Robertson

Gavin Martin Monson

Ryan M Asher

William D Dannaher

Prasanna Malaviya

Jason Merrill Jones

Aron O Zingman

Shane R Adams

Barry C Worrell

Richard William Timm

James R Giordano

John V Hunt

Robert L Koch, Jr

Morgan Robert Hunter

Christopher W Widenhouse

Lauren S Weaner

William D Fox

Joshua D Young

Andrew C Deck

Tylor C Muhlenkamp

Amy L Marcotte

Taylor W Aronhalt

Daniel W Price

Gary Lee Long

Thomas W Huitema

Gregory W Johnson

Matthew C Miller

Daniel J Mumaw

David A Witt

David T Martin

Adam David Hensel

Christopher C Miller

Cole Constantineau

Jonathan A Coe

Wells D Haberstich

David Keith Norvell

Zhifan F Huang

Bennie Thompson

Nicholas J Ross

William Jason White

Thomas W Lytle, Iv

Daniel L Baber

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

A surgical instrument having a shaft, an end effector, a firing system, and a control system is disclosed herein. The firing member is configured to translate an electric motor through a firing stroke. The control system includes a pulse width modulation circuit configured to adjust a duty cycle of voltage pulses to drive the firing system to a target speed. The control system includes a control circuit configured to evaluate the duty cycle of pulses at a predetermined adjustment point and set the target speed based at least in part on the comparison (maintain or new speed). The controls system may be configured to set the target speed at two or more adjustment points during the firing stroke and/or evaluate the duty cycle of pulses at an adjustment point more than half way through the firing stroke.

Surgical instrument with firing stroke target speed adjustment

A surgical stapling assembly is disclosed. The assembly can include a cartridge body having cavities defined therein forming a pattern of openings in the deck of the cartridge body. The pattern can include longitudinally-repeating clusters of cavity ends. The assembly can also include fasteners removably positioned in the cavities. The pattern of openings can comprise openings on a first side of the cartridge body comprising inner openings each defining an inner proximal-to-distal axis oriented parallel to the longitudinal axis, outer openings each defining an outer proximal-to-distal axis obliquely-oriented relative to the longitudinal axis at an outer angle, and intermediate openings each defining an intermediate proximal-to-distal axis obliquely-oriented relative to the longitudinal axis at an intermediate angle, wherein the intermediate angle is different than the outer angle. The assembly can include a sled having offset ramps and/or an anvil comprising an arrangement of forming pockets proximal to the tissue stop.

Anvil comprising an arrangement of forming pockets proximal to tissue stop

A surgical stapler having an end effector, a firing drive electric motor, and a control circuit is disclosed. The firing drive electric motor is configured to actuate a staple firing stroke of the end effector. The control circuit can be configured to provide a pulse width modulated (PWM) electrical signal to the firing drive electric motor and adjust a duty cycle of the PWM electrical signal based at least in part on a speed of the staple firing stroke. The control circuit can further be configured to provide a pulse width modulated (PWM) electrical signal to the firing drive electric motor, adjust a duty cycle of the PWM electrical signal based at least in part on a target speed of a staple firing stroke, and lower the target speed in response to the duty cycle exceeding a safety threshold value.

Surgical stapler with pulse width modulated driven adjustable speed staple firing stroke

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

A staple having a crown, a deformable leg extending from the crown, and a spring extending from the crown configured to compress tissue between the spring and the deformable member. Owing to the flexibility of the spring, the staple can accommodate a wide range of tissue thicknesses while still compressing the tissue captured therein. As a result, a single staple design can be used in a wide variety of surgical procedures thereby reducing the amount of staple designs that must be provided to the surgeon. In at least one embodiment, the staple includes a crushable member. This crushable member can include a plastically deformable first portion and an elastically deformable second portion. The present invention can also include, in various embodiments, a crown, a first deformable member extending from the crown, and means for compressing the tissue against the first deformable member.

Surgical staples having compressible or crushable members for securing tissue therein and stapling instruments for deploying the same

A surgical instrument comprising a handle, a shaft, an end effector, and an articulation drive system configured to articulate the end effector is disclosed. The shaft and the end effector are rotatable relative to the handle about a rotation joint and, also, the end effector is rotatable relative to the shaft about an articulation joint. The articulation drive system comprises an indicator which is illuminated in a first illumination state when the shaft and end effector are rotated within a first range of shaft orientations and in a second illumination state when the shaft and end effector are rotated within a second range of shaft orientations. The controls of the articulation drive system produce a first set of responses when the shaft and end effector are in the first range of orientations and a second set of responses when the shaft and end effector are in the second range.

Surgical instrument comprising an articulation indicator

An apparatus includes a handle assembly having a body, a shaft assembly having an outer tube member, an end effector, an anvil, a first trocar closure system, and a second trocar closure system. The end effector has having a staple deck fixed relative to the body, a staple driver operable to actuate relative to the staple deck between an unfired position and a fired position, and the trocar configured to selectively couple with the anvil and actuate relative to the staple dreck. The first trocar closure assembly can actuate in a first motion to drive the trocar between a distal position and a first closed position. The second trocar closure assembly can actuate in a second motion between the first closed position and a second closed position. The staple drive is inoperable at least until the first trocar closure assembly actuates the trocar to the first closed position.

Dual stage closure system for circular surgical stapler

A surgical instrument comprising an end effector and a closure drive configured to close the end effector is disclosed. The surgical instrument further comprises a stowed lock deployable to hold a closure actuator of the closure drive in a partially-closed position. The surgical instrument further comprises an articulation drive operable to rotate the end effector about an articulation joint when the closure drive is in its partially-closed position.

Surgical instrument comprising a stowed closure actuator stop

A surgical clip applier and methods for applying surgical clips to a vessel, duct, shunt, etc., during a surgical procedure are provided. In one exemplary embodiment, a surgical clip applier is provided having a housing with a trigger movably coupled thereto and a shaft extending therefrom with opposed jaws formed on a distal end thereof. The trigger is adapted to advance a clip to position the clip between the jaws, and to move the jaws from an open position to a closed position to crimp the clip positioned therebetween. The surgical clip applier can include a variety of features to facilitate use of the device, including features to prevent misalignment of the jaws and clip therebetween, features to protect the jaws, and features to ensure proper closure of the jaws and clip therebetween.

Surgical clip applier

Row-to-row staple array variations

Surgical stapling assembly with offset ramped drive surfaces

Jaws of a surgical clip applier with housings formed thereon and methods for manufacturing and use during a procedure to apply surgical clips to a vessel, duct, shunt, etc. are provided. In one exemplary embodiment, a surgical clip applier is provided having jaws on a distal end thereof with a rigid internal frame and an outer housing formed around the internal frame. The jaws of the surgical clip applier can include a variety of features to facilitate placement of surgical clips, including features to align a clip with the jaws and to prevent clip fallout during formation.

Jaw for clip applier

A surgical clip applier is provided that includes first and second jaws on a distal end of an elongate shaft, a clip advancing assembly extending through the shaft and configured to advance a distal-most clip from a plurality of clips in the shaft into the first and second jaws. The jaws have opposed inward facing surfaces, and each inward facing surface has a clip track defined therein for receiving and guiding legs of a clip into the first and second jaws. The clip track of at least one of the jaws has at least one deflectable clip retention member disposed therein and configured to apply a biasing force to a leg of a clip disposed within the jaws to thereby retain the clip within the jaws and maintain alignment of the clip with respect to the jaws. The clip track of at least one of the jaws may also have at least one recess or protrusion designed to be complementary to and mate with a protrusion or recess in a clip.

Clip retention for surgical clip applier

A surgical stapler instrument includes a stapling head assembly that receives a plurality of staples. The staples are configured with features that allow the staples to expand after deployment so that an anastomosis created by the instrument can increase in size after forming. In some versions the staples expand automatically after deployment, and in other versions the staples expand in response to tissue forces imparted upon the staples after deployment. In some versions the staples are configured to be deployed in various patterns that promote expandability of the circular staple line.

Circular surgical stapler having staples with expandable crowns

Growing community of inventors

Cincinnati, OH, United States of America

Michael J Stokes