Ethicon, Gmbh

Ethicon Endo-surgery, Inc.

Cilag International Gmbh

John P Measamer

Richard F Schwemberger

Christopher C Miller

Frederick E Shelton, IV

Brian F Dinardo

Johnny H Alexander, Iii

Charles J Scheib

Richard L Leimbach

Jeffrey C Gagel

Michael S Cropper

Emily A Schellin

Joshua R Uth

Matthew S Corbin

Nadja K Briscoe Heller

Veronica J Schlegel

Brian W Bear

Kevin L Houser

Mark D Overmyer

Omar J Vakharia

William D Fox

Barry Thomas Jamison

Kevin D Sackett

Jason E Zerkle

Craig S Smith

Rodney V Clingaman

Robert F Welch

Matthew H Bolton

Scott A Jenkins

William R Stager

Michael A Jacobs

Timothy E Goode

Nicole Smith

Joseph T Kluener

Richard C Smith

Jason M Rector

Chester O Baxter, Iii

Brett E Swensgard

Bret William Smith

Robert L Koch, Jr

Katherine J Schmid

Cortney E Henderson

William David Kelly

Mark Tsonton

Nicholas G Molitor

Joseph F Paraschac

Stephanie A Mutchler

Anil K Nalagatla

Randall Scott Koplin

Bennie Thompson

Patrick A Weizman

James J Bedi

Richard P Fuchs

John L Stammen

Wai Ngai Chin

Anthony T Nguyen

Narinderjit S Sambi

Hector Chow

Scott B Killinger

James H Chambers

Steven W Hamblin

Leo J Nolan

Gina M Szweda

Michael Francis Bregen

John L Randall, Jr

Christopher J Frederick

James D Staley, Jr

Frederick J Reber, Ii

Chester O Baxter

Jonathan Allen Coe

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

Methods and systems for performing circular stapling

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

Surgical stapler washer

A surgical circular stapler has a body, shaft, a stapling assembly, a motor, a cam assembly, and a firing assembly. The shaft extends distally from the body. 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 cam assembly. Rotation of the cam assembly causes longitudinal translation of the firing assembly. A single rotation of the cam assembly is operable to drive the firing assembly from a proximal position to a distal position and back to a proximal position.

Surgical stapler with rotary cam drive and return

An apparatus includes a body, a motorized end effector, and a control system. The end effector extends distally from the body and comprises a stapling assembly operable to drive staples into tissue. The control system is in communication with the end effector. The control system comprises a motor, a firing trigger, a switch assembly, and a movable member in communication with the firing trigger. A resilient member is engaged with the movable member. The firing trigger and the resilient member are configured to cooperate to move the movable member into engagement with the switch to thereby activate the motor. The switch assembly is configured to couple a power source with the motor to thereby activate the motor in response to actuation of the firing trigger.

Control features for motorized surgical stapling instrument

Surgical stapler

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Cincinnati, OH, United States of America

John P Measamer