Medical tool for endoscope
    1.
    发明授权

    公开(公告)号:US11413061B2

    公开(公告)日:2022-08-16

    申请号:US15876852

    申请日:2018-01-22

    Abstract: A medical device includes a snare wire advanceable and retractable inserted through a channel in an insertion portion that is inserted through an endoscope; a substantially tubular cap member including a first portion and a second portion connected to a distal end of the insertion portion, the cap member having an annular distal end surface, the first portion being attachable to the distal end of the insertion portion in phase with the channel, and the cap member having an internal space formed by the first portion and the second portion; and a guide member being linearly extended along an internal surface of the distal end side of the cap member at a side of the second portion, the guide member being configured to guide the snare wire to form a loop and to restrict a retraction of the snare wire toward the side of the insertion portion.

    Tissue collecting tool and tissue collecting system

    公开(公告)号:US10932763B2

    公开(公告)日:2021-03-02

    申请号:US15877961

    申请日:2018-01-23

    Abstract: A tissue collecting tool includes: a main body that is long; an operation part arranged on a proximal end side of the main body; a bag part including a bottom portion and an opening portion and having a part of the opening portion fixed to the main body such that the opening portion is positioned on a further proximal end side than the bottom portion; and a linear member connected to the opening portion and the operation part and raising the opening portion by being moved in a longitudinal direction of the main body.

    Method of marking lesion in tubular organ of an object

    公开(公告)号:US10076381B2

    公开(公告)日:2018-09-18

    申请号:US14479690

    申请日:2014-09-08

    Abstract: A method used to mark a tubular organ of a subject. In a first step, at a position near a lesion on a wall surface of the tubular organ, a first electrode is supplied with high-frequency current, so that the first electrode punctures the wall surface from a surface of a mucosal layer on the wall surface to a predetermined depth. In a second step, the first electrode is supplied with the high-frequency current for a predetermined time such that a first marking is made by cauterization on a muscle layer. In a third step, a second electrode, which is disposed coaxially with the first electrode, is supplied with high-frequency current for a predetermined time such that a second marking is made by cauterization on the surface of the mucosal layer. During the third step, the first electrode is held as is after the second step.

    ENDOSCOPIC SUBMUCOSAL DISSECTION DEVICE AND ENDOSCOPE SYSTEM

    公开(公告)号:US20170105797A1

    公开(公告)日:2017-04-20

    申请号:US15391290

    申请日:2016-12-27

    Abstract: An endoscopic submucosal dissection device includes: a cap that is separably attached to a distal end of an insertion portion of an endoscope; a first holding portion and a second holding portion; a wire portion at least one part of which protrudes from the first holding portion and the second holding portion and is formed into a loop shape, and which is held by the first holding portion and the second holding portion to be movable forward and backward; an electrode portion that is provided at the part of the wire portion; an insulation member; and an operation portion that is connected to the wire portion and moves the electrode portion between the first holding portion and the second holding portion, wherein the first holding portion and the second holding portion are formed at opposite sides with a center axis of the cap being interposed therebetween.

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