公开(公告)号：US11944367B2

公开(公告)日：2024-04-02

申请号：US16782601

申请日：2020-02-05

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Matthew A. Dinino ,  Justin Thomas ,  Roy J. Pilletere ,  Saumya Banerjee ,  Thomas A Zammataro ,  Scott J. Prior ,  Brian J. Creston

IPC: A61B18/08 ,  A61B18/00 ,  A61B18/16

CPC classification number: A61B18/08 ,  A61B2018/00083 ,  A61B2018/00178 ,  A61B2018/00202 ,  A61B2018/00607 ,  A61B18/16 ,  A61B2018/162

Abstract: A tool assembly for use with an electrosurgical device for cutting tissue includes a base portion, an electrical insulator extending distally from the base portion, a return lead adapted to be electrically coupled to a return terminal, and an active lead adapted to be electrically coupled to an active terminal. The return lead is movably supported on the electrical insulator. The active lead is fixed to the electrical insulator. The return lead is rotatable about a pivot and translatable along a longitudinal axis relative to the electrical insulator and the active lead. Upon activation, electrosurgical energy is transmitted from the active lead through tissue to the return lead to cut tissue in contact with the active lead.

公开(公告)号：US11849936B2

公开(公告)日：2023-12-26

申请号：US17177563

申请日：2021-02-17

Applicant: Covidien LP

Inventor： Ramiro Cabrera ,  Thomas Wingardner ,  David N. Fowler ,  Brian J. Creston ,  Dmitri Menn ,  Paul D. Richard ,  Gene Stellon

IPC: A61B17/04 ,  A61B17/062 ,  A61B1/00 ,  A61B34/00 ,  A61B17/00 ,  A61B17/06 ,  A61B1/005 ,  A61B17/29

CPC classification number: A61B17/0469 ,  A61B1/00087 ,  A61B17/00234 ,  A61B17/0491 ,  A61B17/0625 ,  A61B17/06166 ,  A61B34/71 ,  A61B1/0055 ,  A61B17/062 ,  A61B2017/003 ,  A61B2017/00367 ,  A61B2017/0608 ,  A61B2017/0609 ,  A61B2017/06047 ,  A61B2017/06176 ,  A61B2017/2905 ,  A61B2017/2912 ,  A61B2017/2929

Abstract: The present disclosure relates to devices, systems and methods for endoscopic suturing or stitching through an access tube or the like. An endoscopic stitching device is provided and includes a handle assembly; an elongate shaft supported by and extending from the handle assembly; and an end effector supported on a distal end of the elongate shaft. The end effector includes a neck assembly configured and adapted for articulation in one direction between a substantially linear configuration and an off-axis configuration, and a pair of juxtaposed jaws pivotally associated with one another. Each jaw defines a suture needle receiving recess formed in a tissue contacting surface thereof.

公开(公告)号：US11819209B2

公开(公告)日：2023-11-21

申请号：US17392783

申请日：2021-08-03

Applicant: Covidien LP

Inventor： Suresh Kumar Prema Mohanasundaram ,  Brian J. Creston ,  David M. Chowaniec ,  Roanit A. Fernandes ,  Hari Naga Mahesh Kalepu ,  Raja Kamaraj

IPC: A61B17/00 ,  A61B17/072

CPC classification number: A61B17/07207 ,  A61B2017/0003 ,  A61B2017/00119 ,  A61B2017/00123 ,  A61B2017/00367 ,  A61B2017/00398 ,  A61B2017/00477 ,  A61B2017/00734

Abstract: A surgical instrument includes a motor-driven drive shaft, a distal firing rod coupled to a driven element of a surgical end effector, and a clutch mechanism coupled between the drive shaft and the distal firing rod. The clutch mechanism is configured to electrically connect the drive shaft and the distal firing rod upon the distal firing rod experiencing a threshold force. The electrical connection signals a processor that the threshold force has been exceeded.

公开(公告)号：US20220378423A1

公开(公告)日：2022-12-01

申请号：US17331072

申请日：2021-05-26

Applicant: Covidien LP

Inventor： David M. Chowaniec ,  Xingrui Chen ,  Andriy Buyda ,  Saumya Banerjee ,  Brian J. Creston

IPC: A61B17/072

Abstract: A powered handle assembly includes a motor assembly, a rack, a shaft, and a pinion that couples the motor assembly to the rack. The shaft supports the pinion and is movable to move the pinion from a first position engaged with the rack to a second position disengaged from the rack to facilitate manual retraction of the rack.

公开(公告)号：US20220031380A1

公开(公告)日：2022-02-03

申请号：US16941006

申请日：2020-07-28

Applicant: Covidien LP

Inventor： Thomas A. Zammataro ,  Brian J. Creston ,  Jacob C. Baril

IPC: A61B18/14

Abstract: An electrode assembly for an electrosurgical instrument includes a housing having an active electrical connector and a return electrical connector configured to operably engage a distal end of an electrosurgical instrument shaft. The housing encapsulates a pair of elongated ground plates and a pair of insulative tubes configured to house first and second ends of a wire-like active electrode. The wire-like active electrode operably couples at the first end to the active electrical connector. The elongated ground plates each include a tip at a distal end thereof configured to mutually support a donut-style insulator configured to support the wire-like active electrode therearound. A tensioning mechanism is configured to operably engage the second end of the wire-like active electrode. The tensioning mechanism cooperates with a tensioning tool to tension the wire-like active electrode about the donut-like insulator during assembly.

公开(公告)号：US20210369345A1

公开(公告)日：2021-12-02

申请号：US16883477

申请日：2020-05-26

Applicant: Covidien LP

Inventor： Brian J. Creston ,  Jacob C. Baril ,  Scott J. Prior ,  Saumya Banerjee ,  Ernest A. Addi ,  Amy L. Kung ,  Christopher M. Meehan ,  Thomas A. Zammataro ,  Matthew A. Dinino

IPC: A61B18/16 ,  A61B18/12

Abstract: An auxiliary return system for use with a bipolar electrosurgical device includes a tissue guard defining an open proximal end, an open distal end, and a lumen extending therethrough between the open proximal end and the open distal end. A ground plate is disposed along an inner peripheral surface of the lumen and is operably coupled to a first end of a ground wire extending from the tissue guard. A coupling is included having a bore defined therein for receiving a cable from an electrosurgical device therethrough, the cable including active and ground leads. The coupling has a flange extending therefrom defining a receptacle therein configured to operably receive a plug connected to a second end of the ground wire. The receptacle is configured to provide electrical continuity between the ground lead disposed within the cable and the plug coupled to the ground wire which, in turn, provides electrical continuity to the ground plate.

公开(公告)号：US20210275214A1

公开(公告)日：2021-09-09

申请号：US16808151

申请日：2020-03-03

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Matthew A. Dinino ,  Saumya Banerjee ,  Scott J. Prior ,  Brian J. Creston

IPC: A61B17/34 ,  A61M1/00

Abstract: A smoke evacuator for use with a surgical access device includes an evacuation ring having an inner peripheral surface defining one or more channels therein disposed in fluid communication with an operating cavity. A connection port is disposed thereon in fluid communication with the channel(s) and adapted to connect to a smoke evacuation system. The evacuation ring includes a profile having an inner flange that forms part of the inner peripheral surface of the evacuation ring and one or more lower flanges, the inner flange is configured to mechanically engage a rim of an access device and the lower flange(s) is adapted to mechanically engage a wound guard, wherein engagement of the inner flange of the evacuation ring atop the access device and engagement of the lower flange(s) with the wound guard secures the access device, the wound guard and the smoke evacuation ring within the operating cavity.

公开(公告)号：US10786273B2

公开(公告)日：2020-09-29

申请号：US16369199

申请日：2019-03-29

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Brian J. Creston ,  Roy J. Pilletere ,  Thomas A. Zammataro ,  Justin Thomas ,  Matthew A. Dinino

IPC: A61B17/29 ,  A61B17/00

Abstract: Rotation knob assemblies for handle assemblies of surgical instruments rotatably support a laparoscopic end effector relative to a housing of the handle assemblies. The rotation knob assemblies may include friction reducing screws, bearing members, snap rings, and/or bearing assemblies to facilitate rotation of an outer knob relative to an inner collar.

公开(公告)号：US20190133595A1

公开(公告)日：2019-05-09

申请号：US16150415

申请日：2018-10-03

Applicant: Covidien LP

Inventor： Jacob C. Baril ,  Brian J. Creston ,  Thomas A. Zammataro ,  Matthew A. Dinino

IPC: A61B17/128

Abstract: A handle assembly for use with a surgical instrument is provided and includes a housing, a movable handle, a plunger, and a linkage. The movable handle is pivotably mounted to the housing. The plunger is disposed at least partially within the housing. Distal translation of the plunger relative to the housing is configured to affect a function of the surgical instrument. The linkage is disposed at least partially within the housing. A first portion of the first linkage is pivotable about the movable handle. A second portion of the first linkage is slidable relative to the plunger. A third portion of the linkage includes a stepped portion configured to selectively engage the plunger.

公开(公告)号：US12207819B2

公开(公告)日：2025-01-28

申请号：US18221447

申请日：2023-07-13

Applicant: Covidien LP

Inventor： David M. Chowaniec ,  Xingrui Chen ,  Andriy Buyda ,  Saumya Banerjee ,  Brian J. Creston

IPC: A61B17/072 ,  A61B17/00 ,  A61B17/29

Abstract: A powered handle assembly includes a motor assembly, a rack, a shaft, and a pinion that couples the motor assembly to the rack. The shaft supports the pinion and is movable to move the pinion from a first position engaged with the rack to a second position disengaged from the rack to facilitate manual retraction of the rack.