公开(公告)号：US11737753B2

公开(公告)日：2023-08-29

申请号：US17839059

申请日：2022-06-13

Applicant: Covidien LP

Inventor： Roanit Fernandes ,  Jitendra Bhargava Srinivas

IPC: A61B17/072 ,  A61B17/068

CPC classification number: A61B17/07207 ,  A61B17/0686 ,  A61B2017/07257 ,  A61B2017/07271 ,  A61B2017/07278

Abstract: A surgical stapling device is provided which includes a first jaw supporting an anvil assembly and a second jaw supporting a cartridge assembly. The cartridge assembly supports a firing lockout assembly which includes a latch member having a blocking portion. The latch member is movable between a first position and a second position. In the first position, the blocking portion of the latch member is aligned with the stop surface of the drive member to prevent advancement of the drive assembly beyond an initial advanced position within the tool assembly and in the second position, the blocking member is misaligned with the stop surface of the drive member to permit subsequent advancement of the drive assembly within the tool assembly. In the retracted position of the drive assembly subsequent to firing of the surgical stapling device, the latch member is in the first position.

公开(公告)号：US11678879B2

公开(公告)日：2023-06-20

申请号：US17365059

申请日：2021-07-01

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Roanit Fernandes

IPC: A61B17/072 ,  A61B17/068

CPC classification number: A61B17/0686 ,  A61B17/072 ,  A61B17/07292 ,  A61B17/068 ,  A61B17/07207 ,  A61B2017/07214 ,  A61B2017/07264 ,  A61B2017/07271

Abstract: A surgical stapling apparatus includes a loading unit and a surgical buttress assembly. The loading unit includes an anvil assembly and a staple cartridge assembly. The staple cartridge assembly includes a staple cartridge having a tissue facing surface including staple pockets and a central longitudinal slot defined therethrough and a hook assembly extending outwardly from the tissue facing surface. The surgical buttress assembly includes an anvil buttress and a cartridge buttress. Each of the anvil and cartridge buttresses includes a body, a proximal tab, and a distal tab. The anvil and cartridge buttresses are interconnected at a junction of the proximal tabs and the surgical buttress assembly is folded at the junction such that the proximal tabs substantially overlie one another. The proximal tabs are engaged with the hook assembly to releasably secure the proximal tabs of the anvil and cartridge buttresses to the staple cartridge assembly.

公开(公告)号：US11406385B2

公开(公告)日：2022-08-09

申请号：US16944341

申请日：2020-07-31

Applicant: Covidien LP

Inventor： Roanit Fernandes ,  Jeevan Shankar Setty Maddur

IPC: A61B17/072 ,  A61B17/00

Abstract: A tool assembly includes an anvil and a cartridge assembly pivotally coupled to one another. A locking member is rotatably supported on a distal portion of the cartridge assembly and positioned for receipt in a bore defined in a distal portion of the anvil. The locking member is operably coupled to a sled for advancing staples from the cartridge assembly. Advancement of the sled rotates the locking member relative to the bore to approximate the distal portions of the anvil and cartridge assembly.

公开(公告)号：US11191538B1

公开(公告)日：2021-12-07

申请号：US16895164

申请日：2020-06-08

Applicant: Covidien LP

Inventor： Rajanikanth Mandula ,  Roanit Fernandes

IPC: A61B17/068 ,  A61B17/072

Abstract: A surgical stapling device includes a tool assembly having an anvil, a cartridge assembly movable in relation to the anvil between open and clamped positions, a drive member, and a biasing mechanism or member. The biasing mechanism or member is configured to urge the cartridge assembly in relation to the anvil assembly to its fully open position to provide access to tissue during a surgical procedure.

公开(公告)号：US12102322B2

公开(公告)日：2024-10-01

申请号：US18206266

申请日：2023-06-06

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Roanit Fernandes

IPC: A61B17/072 ,  A61B17/068

CPC classification number: A61B17/0686 ,  A61B17/072 ,  A61B17/07292 ,  A61B17/068 ,  A61B17/07207 ,  A61B2017/07214 ,  A61B2017/07264 ,  A61B2017/07271

Abstract: A surgical stapling apparatus includes a loading unit and a surgical buttress assembly. The loading unit includes an anvil assembly and a staple cartridge assembly. The staple cartridge assembly includes a staple cartridge having a tissue facing surface including staple pockets and a central longitudinal slot defined therethrough and a hook assembly extending outwardly from the tissue facing surface. The surgical buttress assembly includes an anvil buttress and a cartridge buttress. Each of the anvil and cartridge buttresses includes a body, a proximal tab, and a distal tab. The anvil and cartridge buttresses are interconnected at a junction of the proximal tabs and the surgical buttress assembly is folded at the junction such that the proximal tabs substantially overlie one another. The proximal tabs are engaged with the hook assembly to releasably secure the proximal tabs of the anvil and cartridge buttresses to the staple cartridge assembly.

公开(公告)号：US11957348B2

公开(公告)日：2024-04-16

申请号：US17875886

申请日：2022-07-28

Applicant: Covidien LP

Inventor： Pawel Abramek ,  Kenneth M. Cappola ,  Matthew J. Chowaniec ,  Roanit Fernandes

IPC: A61B17/072 ,  A61B17/068

CPC classification number: A61B17/07292 ,  A61B17/0686 ,  A61B17/072 ,  A61B2017/07264 ,  A61B2017/07271 ,  A61B2017/07285

Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil buttress, and is transferrable from the anvil buttress loading tool to the anvil assembly.

公开(公告)号：US11596399B2

公开(公告)日：2023-03-07

申请号：US17355244

申请日：2021-06-23

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Roanit Fernandes

IPC: A61B17/072 ,  A61B17/068

Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress retention clip coupled to the anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil assembly, and is transferrable from the anvil buttress loading tool to the anvil assembly.

公开(公告)号：US20220175379A1

公开(公告)日：2022-06-09

申请号：US17679162

申请日：2022-02-24

Applicant: Covidien LP

Inventor： Roanit Fernandes ,  Suresh Kumar Prema Mohanasundaram ,  Jitendra Bhargava Srinivas ,  Matthew J. Chowaniec

IPC: A61B17/072 ,  A61B17/04

Abstract: An end effector for use with a surgical stapler includes a staple cartridge assembly movable relative to an anvil assembly. The staple cartridge assembly defines a plurality of retention slots and a cavity. The staple cartridge assembly includes a plurality of staples, a plurality of pushers, an actuation sled, a surgical buttress material, a suture, and an anchoring button. The actuation sled is configured for movement along a length of the staple cartridge assembly to sequentially engage the plurality of pushers to eject the plurality of staples through the respective plurality of retention slots. The anchoring button is configured to be received in the cavity of the staple cartridge assembly such that a portion of the suture is supported in the cavity to be severed by a knife blade of the actuation sled when the actuation sled is advanced distally.

公开(公告)号：US20210290230A1

公开(公告)日：2021-09-23

申请号：US17177342

申请日：2021-02-17

Applicant: Covidien LP

Inventor： Roanit Fernandes ,  Kenneth H. Whitfield

IPC: A61B17/072

Abstract: A loading unit includes a staple cartridge assembly, an anvil assembly, and an anvil hook assembly. The anvil assembly has an opening defined therethrough, and the anvil hook assembly includes an anvil hook disposed within the opening of the anvil assembly and a pivot pin extending through the anvil hook and the anvil assembly. The anvil hook is pivotable with respect to the anvil assembly about the pivot pin between a loading position and a loaded position. The loading unit may further include a surgical buttress assembly including a cartridge buttress releasably attached to the staple cartridge assembly, an anvil buttress releasably attachable to the anvil assembly by the anvil hook, and a connecting member interconnecting the cartridge and anvil buttresses.

公开(公告)号：US20230113219A1

公开(公告)日：2023-04-13

申请号：US17500051

申请日：2021-10-13

Applicant: Covidien LP

Inventor： Roanit Fernandes ,  Kenneth M. Cappola

IPC: A61B17/068 ,  A61B17/072

Abstract: A surgical stapling device includes a tool assembly and a drive assembly for actuating the tool assembly. The tool assembly includes an anvil assembly that defines a notch and a cartridge assembly that includes a staple cartridge having a cartridge body that supports staples and pushers and an actuation sled that supports a knife. The drive assembly supports a lockout mechanism that is movable between unlocked position and locked positions. The knife includes a protrusion that engages the lockout mechanism to move the lockout mechanism to the unlocked position as the drive assembly is moved from a retracted position towards an advanced position. When a knife is not present within the staple cartridge, the lockout mechanism remains in the unlocked position to prevent advancement of the drive assembly.