Catheter, catheter manipulation part, and catheter manufacturing method

    公开(公告)号:US10363397B2

    公开(公告)日:2019-07-30

    申请号:US14779480

    申请日:2014-03-26

    IPC分类号: A61M25/01 A61M25/00 B65B55/14

    摘要: A catheter of the invention includes an elongated flexible tubular main body; a plurality of manipulation wires inserted through the tubular main body and having tips connected to a distal part of the tubular main body; a manipulation-part main body provided at a base end of the tubular main body; and a bending manipulation part. The bending manipulation part has an engagement part engaging with base ends of the manipulation wires, and individually applies pulling force to the plurality of manipulation wires through pulling operations so as to bend the distal part of the tubular main body. The bending manipulation part is provided so as to be movable with respect to the manipulation-part main body. The path lengths of the plurality of manipulation wires from the tips thereof to the engagement part are simultaneously increased or decreased when the bending manipulation part and the manipulation-part main body move relative to each other.

    Endoscopic clip device and clip
    2.
    发明授权

    公开(公告)号:US10646228B2

    公开(公告)日:2020-05-12

    申请号:US15559641

    申请日:2015-08-21

    摘要: An endoscopic clip device including a clip, a treatment instrument body comprising a sheath, an operation wire, and a distal connection portion, a sleeve accommodated inside the sheath and accommodating the connection portion in distal portion of the wire such that portion of inner diameter of the sleeve is smaller than outer diameter of the locking portion when the connection portion is drawable from the accommodation portion. The sleeve has diameter enlargement portion on distal side of the sleeve and elastically self-openable, a diameter reduction step portion on proximal side of the enlargement portion, and a sleeve body positioned on the proximal side of the enlargement portion from the step portion and having radial rigidity higher than that of the enlargement portion, and the inner diameter of the sleeve body is smaller than the outer diameter of the locking portion when the connection portion is drawable from the accommodation portion.