公开(公告)号：US20220401144A1

公开(公告)日：2022-12-22

申请号：US17893411

申请日：2022-08-23

Applicant: Covidien LP

Inventor： Weijiang Ding ,  Yuanxun Li ,  Sarfraz Ahamed Syed ,  Mimi Ding ,  Mingfeng Xu ,  Pu Liu ,  Kai Liu ,  Michael B. Lyons

IPC: A61B18/14 ,  A61B17/295

Abstract: A forceps includes a first portion and a second portion. The first portion includes a shaft, an end effector assembly disposed at a distal end of the shaft, and a drive assembly including a drive bar. The end effector assembly includes jaw members movable between spaced-apart and approximated positions. The drive bar is slidably disposed within the shaft and coupled to the end effector assembly such that translation of the drive bar relative to the shaft moves the jaw members between the spaced-apart and approximated positions. The second portion includes a housing (or portion thereof) and a handle assembly including a movable handle that is coupled to the housing and movable relative thereto between first and second positions. The first and second portions are releasably couplable with one another to operably couple the movable handle with the drive bar such that moving the movable handle actuates the jaw members.

公开(公告)号：US20210121189A1

公开(公告)日：2021-04-29

申请号：US17122051

申请日：2020-12-15

Applicant: Covidien LP

Inventor： Weijiang Ding ,  Mingfeng Xu

IPC: A61B17/29

Abstract: An articulation assembly for use with a surgical instrument is provided. The articulation assembly includes a plurality of joints, a plurality of cables, and a first drive member. Each joint defines a plurality of openings extending longitudinally therethrough, a central opening extending longitudinally therethrough, a pair of projections extending from a first surface, and a pair of grooves extending at least partially through a second surface. Each groove of at least one joint is configured to engage one projection of the pair of projections from an adjacent joint. Each cable extends through one opening of the plurality of openings of each joint. The first drive member extends through the central opening of each joint.

公开(公告)号：US11426230B2

公开(公告)日：2022-08-30

申请号：US15418877

申请日：2014-07-30

Applicant: COVIDIEN LP

Inventor： Weijiang Ding ,  Yuanxun Li ,  Sarfraz Ahamed Syed ,  Mimi Ding ,  Mingfeng Xu ,  Pu Liu ,  Kai Liu ,  Michael B. Lyons

IPC: A61B18/14 ,  A61B17/295 ,  A61B17/29 ,  A61B17/00 ,  A61B90/00 ,  A61B34/30 ,  A61B18/00

Abstract: A forceps includes a first portion and a second portion. The first portion includes a shaft, an end effector assembly disposed at a distal end of the shaft, and a drive assembly including a drive bar. The end effector assembly includes jaw members movable between spaced-apart and approximated positions. The drive bar is slidably disposed within the shaft and coupled to the end effector assembly such that translation of the drive bar relative to the shaft moves the jaw members between the spaced-apart and approximated positions. The second portion includes a housing (or portion thereof) and a handle assembly including a movable handle that is coupled to the housing and movable relative thereto between first and second positions. The first and second portions are releasably couplable with one another to operably couple the movable handle with the drive bar such that moving the movable handle actuates the jaw members.

公开(公告)号：US10779880B2

公开(公告)日：2020-09-22

申请号：US15516711

申请日：2014-10-22

Applicant: COVIDIEN LP

Inventor： Weijiang Ding ,  Mingfeng Xu

IPC: A61B18/14 ,  A61B17/295 ,  A61B17/32 ,  A61B17/29 ,  A61B18/00

Abstract: An end effector assembly for a forceps includes first and second jaw members each having an opposed electrically-conductive tissue-contacting surface. The first jaw member is pivotable relative to the second jaw member between a spaced-apart position and an approximated position for grasping tissue between the opposed electrically-conductive tissue-contacting surfaces. The second jaw member includes an electrical cutting element and is translatable relative to the first jaw member between a first position, wherein the opposed electrically-conductive tissue-contacting surfaces are aligned with one another, and a second position, wherein the opposed electrically-conductive tissue-contacting surfaces are longitudinally offset relative to one another. Upon translation of the second jaw member between the first and second positions, the electrical cutting element is translated at least partially along the opposed electrically-conductive tissue-contacting surface of the first jaw member.