Bilateral spring for surgical instruments and surgical instruments including the same

    公开(公告)号:US11219463B2

    公开(公告)日:2022-01-11

    申请号:US16433049

    申请日:2019-06-06

    申请人: Covidien LP

    IPC分类号: A61B17/128 A61B17/00

    摘要: A handle assembly of a surgical instrument includes a housing, a trigger pivotably coupled to the housing, a drive bar disposed within the housing and operably coupled to the trigger such that pivoting of the trigger translates the drive bar, and a bilateral spring disposed within the housing and operably coupled to at least one of the trigger or the drive bar. The trigger is movable relative to the housing between first, second, and third positions wherein the first position is disposed between the second and third positions. The bilateral spring includes a compression spring configured to compress upon movement of the trigger in a first direction from the first position towards the second position to establish a first bias, and to compress upon movement of the trigger in a second, opposite direction from the first position towards the third position to establish a second bias.

    SPECIMEN RETRIEVAL DEVICE
    33.
    发明申请

    公开(公告)号:US20210401421A1

    公开(公告)日:2021-12-30

    申请号:US17474309

    申请日:2021-09-14

    申请人: Covidien LP

    IPC分类号: A61B17/00

    摘要: A specimen retrieval device includes a tubular body, an inner shaft slidably positioned within a longitudinal bore of the tubular body, and a specimen bag supported on the distal portion of the inner shaft. In embodiments, the tubular body tubular body is formed of a lubricious material. The specimen bag is formed from a pattern and welded by a radiofrequency welder. The specimen bag includes a tail section through which the inner shaft passes, and the tail section may be attached to a handle at a proximal portion of the inner shaft.

    THREE-PRONG LAPAROSCOPIC GRASPING DEVICE

    公开(公告)号:US20210361310A1

    公开(公告)日:2021-11-25

    申请号:US17324281

    申请日:2021-05-19

    申请人: Covidien LP

    IPC分类号: A61B17/29

    摘要: A three-prong grasper for laparoscopic procedures includes an elongate body having a sleeve with a distal portion, and an end effector supported on the distal portion. The end effector includes a first prong assembly with a first base member and a first prong member pivotally secured to the first base member, a second prong assembly with a second base member and a second prong member pivotally secured to the second base member, and a third prong assembly with a third base member and a third prong member pivotally secured to the third base member. The first, second, and third prong members move between an open configuration and a closed configuration. A method of grasping tissue also includes pivoting first, second, and/or third prong members relative to respective first, second, and third base members to cause the grasping of tissue.

    Modular surgical clip cartridge
    36.
    发明授权

    公开(公告)号:US11116513B2

    公开(公告)日:2021-09-14

    申请号:US16120571

    申请日:2018-09-04

    申请人: Covidien LP

    IPC分类号: A61B17/122 A61B17/00

    摘要: A modular clip cartridge includes a body portion having a first wall and a second wall. The first wall defines a first protuberance, a second protuberance symmetrically opposed to the first protuberance, and a first mating feature disposed between the first and second protuberances. The second wall defines a first recess, a second recess symmetrically opposed to the first recess, and a second mating feature disposed between the first and second recesses. At least one clip compartment is defined in the body portion and configured to releasably retain at least one surgical clip therein. One of the first and second mating features of the modular clip cartridge is configured to selectively engage one of a first and a second mating feature of another modular clip cartridge to selectively connect the first modular clip cartridge and another modular clip cartridge into a unitary arrangement to define a modular surgical clip pack.

    ELECTROSURGICAL DEVICE FOR CUTTING TISSUE

    公开(公告)号:US20210236188A1

    公开(公告)日:2021-08-05

    申请号:US16782601

    申请日:2020-02-05

    申请人: Covidien LP

    IPC分类号: A61B18/08

    摘要: 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.

    Surgical clip applier
    38.
    发明授权

    公开(公告)号:US10993721B2

    公开(公告)日:2021-05-04

    申请号:US16262073

    申请日:2019-01-30

    申请人: Covidien LP

    IPC分类号: A61B17/10 A61B17/00 A61B17/08

    摘要: A surgical clip applier includes a handle assembly and an elongated assembly configured to releasably engage the handle assembly. The handle assembly includes a trigger and a drive bar wherein pivoting of the trigger through a full actuation stroke translates the drive bar through a full drive distance. The drive bar has a magnetic distal end portion. The elongated assembly includes an inner drive assembly including a magnetic proximal end portion. Upon engagement of the elongated assembly with the handle assembly, the magnetic proximal end portion of the inner drive assembly is configured to attract the magnetic distal end portion of the drive bar to move the drive bar and pivot the trigger such that the trigger is pivotable through a reduced actuation stroke to translate the drive bar through a reduced drive distance.

    STACKABLE LIGATION CLIP
    39.
    发明申请

    公开(公告)号:US20210038225A1

    公开(公告)日:2021-02-11

    申请号:US16865921

    申请日:2020-05-04

    申请人: Covidien LP

    IPC分类号: A61B17/122

    摘要: A ligation clip includes a first beam that supports a first alignment member and a second beam that supports a second alignment member. The first and second alignment members receive distal end portions of first and second beam portions of a second ligation clip when the ligation clips are stacked within a multi-fire clip applier to provide stability to the clip stack.