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    Surgical forceps
    41.
    发明授权
    Surgical forceps 有权

    公开(公告)号：US10441305B2

    公开(公告)日：2019-10-15

    申请号：US15666142

    申请日：2017-08-01

    Applicant: COVIDIEN LP

    Inventor： John J. Kappus ,  David N. Heard

    IPC: A61B17/28 ,  A61B17/29 ,  A61B17/295 ,  A61B34/00 ,  A61B18/14 ,  A61B90/00

    Abstract: A surgical instrument includes a housing, a handle, an elongated shaft, an end effector assembly, a drive assembly, a support, a roller, and an extension depending from the handle. The end effector assembly includes a first jaw member and a second jaw member. At least one of the jaw members is movable with respect to the other jaw member. The drive assembly includes a drive bar extending at least partially through the elongated shaft such that longitudinal translation of the drive bar causes movement of the jaw members. The extension includes a proximal surface and a channel defined therein. The proximal surface is configured to contact a portion of the drive assembly such that movement of the handle with respect to the housing causes longitudinal translation of the drive bar. The channel is positioned for mechanical engagement by the roller.

    Electrosurgical tissue sealer and cutter
    42.
    发明授权
    Electrosurgical tissue sealer and cutter 有权

    公开(公告)号：US10335227B2

    公开(公告)日：2019-07-02

    申请号：US15019693

    申请日：2016-02-09

    Applicant: COVIDIEN LP

    Inventor： David N. Heard

    IPC: A61B18/14 ,  A61B17/3205 ,  A61B90/00 ,  A61B17/00 ,  A61B17/29 ,  A61B18/00 ,  A61B18/12

    Abstract: A surgical instrument comprises an end effector including a pair of jaw members configured to move with respect to one another between an open configuration and a closed configuration for clamping tissue. At least one jaw member includes an elongate cam slot extending in a longitudinal direction over a substantial a length a tissue clamping surface of the at least one jaw member. A plurality of electrically isolated, and longitudinally spaced electrodes is supported by the tissue clamping surface and is configured to deliver electrosurgical energy to tissue. A reciprocating member engages the elongate cam slot and is extendable to a sealing position with respect to each of the electrodes to define a predetermined gap distance between a particular electrode and an opposing tissue clamping surface.

    Multi-function surgical instruments
    44.
    发明授权
    Multi-function surgical instruments 有权

    公开(公告)号：US09987076B2

    公开(公告)日：2018-06-05

    申请号：US14802179

    申请日：2015-07-17

    Applicant: COVIDIEN LP

    Inventor： John J. Kappus ,  David N. Heard ,  David M. Garrison ,  Purvish Soni

    IPC: A61B18/14 ,  A61B18/00

    CPC classification number: A61B18/1445 ,  A61B2018/00083 ,  A61B2018/0063 ,  A61B2018/1422 ,  A61B2018/1467 ,  A61B2018/1475

    Abstract: A surgical instrument includes a housing, an inner shaft coupled to and extending distally from the housing, an end effector assembly disposed at a distal end of the inner shaft, an outer sheath that is fixed to the housing, extends distally from the housing, and is disposed about the inner shaft, and an insulative sleeve. The insulative sleeve is positioned between the inner shaft and the outer sheath. The insulative sleeve is movable relative to the inner shaft and the outer sheath between a storage position, wherein the insulative sleeve is positioned proximally of the end effector assembly, and a deployed position, wherein the insulative sleeve substantially surrounds the end effector assembly.

    Suction Coagulator
    47.
    发明申请
    Suction Coagulator 有权
    抽吸凝结器

    公开(公告)号：US20130103033A1

    公开(公告)日：2013-04-25

    申请号：US13710001

    申请日：2012-12-10

    Applicant: Covidien LP

    Inventor： David N. Heard ,  Joe D. Sartor

    IPC: A61B18/14

    CPC classification number: A61B18/14 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2017/0088 ,  A61B2018/00023 ,  A61B2018/00029 ,  A61B2018/00053 ,  A61B2018/00065 ,  A61B2018/00083 ,  A61B2018/00101 ,  A61B2018/00107 ,  A61B2018/00113 ,  A61B2018/00291 ,  A61B2018/00589 ,  A61B2218/002 ,  A61B2218/007

    Abstract: An electrosurgical suction coagulator is disclosed having improved thermal insulation between the active electrode and adjacent tissue. In embodiments, passive insulation is used to control the transfer of thermal energy from an electrosurgical electrode into surrounding tissue. Braided, closed-sell foam material, and open cell foam materials may be used to thermally insulate the outer surface of a suction coagulator shaft from an inner electrode. In embodiments, a suction coagulator shaft includes an external covering formed from open-cell foam material, which may be saturated with a coolant, such as water or saline, to increase the thermal mass of the shaft. In other embodiments, active cooling delivers coolant to the operative site. In yet other embodiments, a suction coagulator shaft includes a cooling jacket through which coolant is passed to actively cool the instrument. The improved electrosurgical suction coagulator disclosed herein may have a reduced operating surface temperatures which may result in reduced risk of undesirable effects to adjacent tissue, and may result in reduced operative times and improved patient outcomes.

    Abstract translation: 公开了一种电外科吸入式凝结器，其具有改善的活性电极和相邻组织之间的热绝缘。 在实施例中，被动绝缘用于控制从电外科电极到周围组织的热能传递。 可以使用编织的封闭泡沫材料和开孔泡沫材料来将吸入式凝结器轴的外表面与内部电极进行热绝缘。 在实施例中，抽吸凝结器轴包括由开孔泡沫材料形成的外部覆盖物，其可以被诸如水或盐水的冷却剂饱和，以增加轴的热质量。 在其他实施例中，主动冷却将冷却剂输送到操作部位。 在其它实施例中，抽吸凝结器轴包括冷却套，通过该冷却套通过冷却剂来主动冷却仪器。 本文公开的改进的电外科吸入式凝结器可以具有降低的操作表面温度，这可能导致对相邻组织的不良影响的风险降低，并且可能导致减少的手术时间和改善的患者结果。

    Electrosurgical Tissue Sealer and Cutter
    48.
    发明申请
    Electrosurgical Tissue Sealer and Cutter 有权
    电外科组织封口机和切割机

    公开(公告)号：US20130030433A1

    公开(公告)日：2013-01-31

    申请号：US13632804

    申请日：2012-10-01

    Applicant: Covidien LP

    Inventor： David N. Heard

    IPC: A61B18/14

    CPC classification number: A61B18/1445 ,  A61B17/3205 ,  A61B18/1442 ,  A61B2017/00398 ,  A61B2017/2923 ,  A61B2017/2936 ,  A61B2018/00083 ,  A61B2018/00196 ,  A61B2018/0063 ,  A61B2018/00654 ,  A61B2018/124 ,  A61B2018/1412 ,  A61B2018/1455 ,  A61B2018/1467 ,  A61B2090/034 ,  A61B2090/0811

    Abstract: A surgical instrument comprises an end effector including a pair of jaw members configured to move with respect to one another between an open configuration and a closed configuration for clamping tissue. At least one jaw member includes an elongate cam slot extending in a longitudinal direction over a substantial a length a tissue clamping surface of the at least one jaw member. A plurality of electrically isolated, and longitudinally spaced electrodes is supported by the tissue clamping surface and is configured to deliver electrosurgical energy to tissue. A reciprocating member engages the elongate cam slot and is extendable to a sealing position with respect to each of the electrodes to define a predetermined gap distance between a particular electrode and an opposing tissue clamping surface.

    Abstract translation: 手术器械包括端部执行器，其包括一对钳口构件，所述钳口构件构造成在打开构型和用于夹紧组织的闭合构型之间相对于彼此移动。 至少一个钳口构件包括在长度方向上延伸的至少一个钳口构件的组织夹持表面的细长凸轮槽。 多个电隔离和纵向间隔开的电极被组织夹持表面支撑，并被构造成将电外科能量递送到组织。 往复式构件接合细长凸轮槽，并且可相对于每个电极延伸到密封位置，以限定特定电极和相对的组织夹持表面之间的预定间隙距离。

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