公开(公告)号：US20220378425A1

公开(公告)日：2022-12-01

申请号：US17728080

申请日：2022-04-25

Applicant: Cilag GmbH International

Inventor： Zhifan F. Huang ,  Richard L. Leimbach ,  Geoffrey C. Hueil ,  Nicholas J. Ross ,  Brian K. Spinneweber ,  Joshua R. Ruoff ,  Robbin B. Johnson ,  Daniel L. Baber ,  Pierre R. Mesnil

IPC: A61B17/072

Abstract: A surgical stapling instrument comprising an articulatable end effector including a staple cartridge is disclosed. The stapling instrument further comprises an articulation drive configured to articulate the end effector and a staple firing drive configured to fire the staples from the staple cartridge during a staple firing stroke. The articulation drive is selectively engageable with the staple firing drive to articulate the end effector and decoupled from the staple firing drive during the staple firing stroke. The stapling instrument further comprises a control system that is configured to compensate for the net displacement of the staple firing drive that occurs when articulating the end effector.

公开(公告)号：US12226099B2

公开(公告)日：2025-02-18

申请号：US18191841

申请日：2023-03-28

Applicant: Cilag GmbH International

Inventor： Zhifan F. Huang ,  Pierre R. Mesnil ,  Michael J. Stokes ,  Richard L. Leimbach ,  Shane R. Adams

IPC: A61B17/072 ,  A61B90/00 ,  A61B17/00

Abstract: 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.

公开(公告)号：US11950781B2

公开(公告)日：2024-04-09

申请号：US17514096

申请日：2021-10-29

Applicant: Cilag GmbH International

Inventor： Christopher Q. Seow ,  Taylor W. Aronhalt ,  Tyler N. Brehm ,  Zhifan F. Huang ,  Austin J. Bridges ,  Pierre R. Mesnil ,  Diana M. Darpel ,  Morgan R. Hunter ,  Chad P. Boudreaux

IPC: A61B17/072 ,  A61B17/00

CPC classification number: A61B17/07292 ,  A61B2017/00473 ,  A61B2017/00867 ,  A61B2017/07257 ,  A61B2017/07271 ,  A61B2017/07285

Abstract: An adjunct configured for use with an end effector of a surgical stapler includes a tissue-effecting portion comprising a first material, and at least one movable attachment feature coupled to the tissue-effecting portion and comprising a second material different from the first material. The at least one movable attachment feature is configured to releasably attach the tissue-effecting portion to a stapling surface of the end effector. The tissue-effecting portion is configured to contact tissue clamped by the end effector during closure thereof. The tissue-effecting portion is further configured to be pierced and captured by staples ejected from the end effector into the clamped tissue and thereby reinforce the engagement between the ejected staples and the clamped tissue.

公开(公告)号：US20230139613A1

公开(公告)日：2023-05-04

申请号：US17514096

申请日：2021-10-29

Applicant: Cilag GmbH International

Inventor： Christopher Q. Seow ,  Taylor W. Aronhalt ,  Tyler N. Brehm ,  Zhifan F. Huang ,  Austin J. Bridges ,  Pierre R. Mesnil ,  Diana M. Darpel ,  Morgan R. Hunter ,  Chad P. Boudreaux

IPC: A61B17/072

Abstract: An adjunct configured for use with an end effector of a surgical stapler includes a tissue-effecting portion comprising a first material, and at least one movable attachment feature coupled to the tissue-effecting portion and comprising a second material different from the first material. The at least one movable attachment feature is configured to releasably attach the tissue-effecting portion to a stapling surface of the end effector. The tissue-effecting portion is configured to contact tissue clamped by the end effector during closure thereof. The tissue-effecting portion is further configured to be pierced and captured by staples ejected from the end effector into the clamped tissue and thereby reinforce the engagement between the ejected staples and the clamped tissue.

公开(公告)号：US20240245402A1

公开(公告)日：2024-07-25

申请号：US18586700

申请日：2024-02-26

Applicant: Cilag GmbH International

Inventor： Christopher Q. Seow ,  Taylor W. Aronhalt ,  Tyler N. Brehm ,  Zhifan F. Huang ,  Austin J. Bridges ,  Pierre R. Mesnil ,  Diana M. Darpel ,  Morgan R. Hunter ,  Chad P. Boudreaux

IPC: A61B17/072 ,  A61B17/00

CPC classification number: A61B17/07292 ,  A61B2017/00473 ,  A61B2017/00867 ,  A61B2017/07257 ,  A61B2017/07271 ,  A61B2017/07285

Abstract: An adjunct configured for use with an end effector of a surgical stapler includes a tissue-effecting portion comprising a first material, and at least one movable attachment feature coupled to the tissue-effecting portion and comprising a second material different from the first material. The at least one movable attachment feature is configured to releasably attach the tissue-effecting portion to a stapling surface of the end effector. The tissue-effecting portion is configured to contact tissue clamped by the end effector during closure thereof. The tissue-effecting portion is further configured to be pierced and captured by staples ejected from the end effector into the clamped tissue and thereby reinforce the engagement between the ejected staples and the clamped tissue.

公开(公告)号：US20230048389A1

公开(公告)日：2023-02-16

申请号：US17401460

申请日：2021-08-13

Applicant: Cilag GmbH International

Inventor： John K. Bruce ,  John S. Kimsey ,  Yvan D. Nguetio Tchoumkeu ,  Morgan R. Hunter ,  Cory G. Kimball ,  Gregory J. Bakos ,  Christopher Q. Seow ,  Pierre R. Mesnil ,  Laura A. Downing ,  Jeffery D. Bruns ,  Ryan W. McGhee ,  Chester O. Baxter, III ,  John E. Feds ,  Michael J. Stokes

IPC: A61B17/115 ,  A61B17/11

Abstract: A surgical stapling instrument includes an anvil defining a plurality of staple forming pockets and a stapling head assembly configured to drive a plurality of staples against the staple forming pockets of the anvil. The stapling head assembly comprises a coupling member configured to actuate the anvil relative to the stapling head assembly, a firing assembly configured to drive the plurality of staples against the staple forming pockets of the anvil, and a deck member. The deck member includes a deck surface extending radially between an inner circular edge and an outer circular edge, and a plurality of staple openings extending through the deck surface. The plurality of staple openings define at least one cross shape.

公开(公告)号：US20220378426A1

公开(公告)日：2022-12-01

申请号：US17728086

申请日：2022-04-25

Applicant: Cilag GmbH International

Inventor： Zhifan F. Huang ,  Richard L. Leimbach ,  Geoffrey C. Hueil ,  Nicholas J. Ross ,  Brian K. Spinneweber ,  Joshua R. Ruoff ,  Robbin B. Johnson ,  Daniel L. Baber ,  Pierre R. Mesnil ,  Marissa T. Kamenir

IPC: A61B17/072

Abstract: A surgical instrument comprising an articulatable end effector and an articulation control system is disclosed. The articulation control system comprises actuators that, when actuated, cause the end effector to articulate in predetermined directions. When the end effector is rotated downwardly, the articulation control system flips, or switches, the response to the inputs from the actuators.

公开(公告)号：US20220378424A1

公开(公告)日：2022-12-01

申请号：US17728076

申请日：2022-04-25

Applicant: Cilag GmbH International

Inventor： Zhifan F. Huang ,  Richard L. Leimbach ,  Geoffrey C. Hueil ,  Nicholas J. Ross ,  Brian K. Spinneweber ,  Joshua R. Ruoff ,  Robbin B. Johnson ,  Daniel L. Baber ,  Pierre R. Mesnil

IPC: A61B17/072

Abstract: A surgical stapling instrument comprising a tissue cutting knife movable through a staple cartridge to perform a staple firing stroke is disclosed. The stapling instrument further comprises a lockout system configured to prevent the tissue cutting knife from being moved through the staple firing stroke if the staple cartridge is missing from the stapling instrument and/or if the staple cartridge has been previously fired. The lockout system comprises a flexible spring that acts on the bottom of the tissue cutting knife at the initiation of the staple firing stroke to push the tissue cutting knife into a lockout recess if the staple cartridge is missing or has been previously fired.

公开(公告)号：US20240382202A1

公开(公告)日：2024-11-21

申请号：US18588206

申请日：2024-02-27

Applicant: Cilag GmbH International

Inventor： Gregory G. Scott ,  Nicholas Fanelli ,  Kevin M. Fiebig ,  John P. May ,  Nicholas A. Wilson ,  Devanathan Raghavan ,  Jeffery D. Bruns ,  Pierre R. Mesnil ,  Scott A. Jenkins ,  Kristin L. Jambor ,  Cory G. Kimball ,  Anil K. Nalagatla ,  Shannon L. Jones ,  Frederick E. Shelton, IV

IPC: A61B17/072

Abstract: A stapling assembly for a surgical instrument includes a body extending along a longitudinal axis and having an upper deck, a plurality of pockets extending through the upper deck for receiving respective staples and arranged in at least two longitudinal rows, a plurality of staple drivers, and a staple driver actuator. The stapling assembly also includes a plurality of pocket extenders extending upwardly from the upper deck. Each pocket extender has a respective top surface. The stapling assembly further includes at least one upwardly-facing surface configured to contact an adhesive of an adjunct for securing the adjunct to the stapling assembly. The at least one upwardly-facing surface is disposed at least partially between at least a portion of the upper deck and the top surfaces of the plurality of pocket extenders, and spans laterally at least partially across at least two longitudinal rows of the plurality of pockets.

公开(公告)号：US11998201B2

公开(公告)日：2024-06-04

申请号：US17728076

申请日：2022-04-25

Applicant: Cilag GmbH International

Inventor： Zhifan F. Huang ,  Richard L Leimbach ,  Geoffrey C. Hueil ,  Nicholas J. Ross ,  Brian K. Spinneweber ,  Joshua R. Ruoff ,  Robbin B. Johnson ,  Daniel L. Baber ,  Pierre R. Mesnil

IPC: A61B17/072 ,  A61B17/00 ,  A61B17/068 ,  A61B17/115 ,  A61B17/29 ,  A61B90/00

CPC classification number: A61B17/07207 ,  A61B17/0686 ,  A61B17/072 ,  A61B2017/00017 ,  A61B2017/0003 ,  A61B2017/00039 ,  A61B2017/00075 ,  A61B2017/00119 ,  A61B2017/00128 ,  A61B2017/00199 ,  A61B2017/00398 ,  A61B2017/00473 ,  A61B2017/00477 ,  A61B2017/0053 ,  A61B2017/00734 ,  A61B17/068 ,  A61B2017/07214 ,  A61B2017/07228 ,  A61B2017/07257 ,  A61B2017/07271 ,  A61B2017/07278 ,  A61B2017/07285 ,  A61B17/115 ,  A61B2017/2927 ,  A61B2090/0811

Abstract: A surgical stapling instrument comprising a tissue cutting knife movable through a staple cartridge to perform a staple firing stroke is disclosed. The stapling instrument further comprises a lockout system configured to prevent the tissue cutting knife from being moved through the staple firing stroke if the staple cartridge is missing from the stapling instrument and/or if the staple cartridge has been previously fired. The lockout system comprises a flexible spring that acts on the bottom of the tissue cutting knife at the initiation of the staple firing stroke to push the tissue cutting knife into a lockout recess if the staple cartridge is missing or has been previously fired.