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    • 7. 发明公开
    • A multi-cannula surgical instrument
    • Chirurgisches Instrument mit mehrerenKanülen
    • EP2792321A1
    • 2014-10-22
    • EP13164090.6
    • 2013-04-17
    • VESALIUS MEDICAL TECHNOLOGIES BVBA
    • VESALIUS MEDICAL TECHNOLOGIES BVBA
    • A61B17/34
    • A61B17/3496A61B17/3474A61B18/1482A61B18/1487A61B18/1492A61B2018/00577A61B2018/00595
    • The invention relates to a multi-cannula surgical instrument (1), comprising an inner cannula (3) movably disposed within an outer cannula (2), the inner cannula (3) comprising a blunt distal tip (3b), one or more first inner ducts (31) and one or more first flow-through orifices (32) arranged to allow one or more fluid flows therethrough, wherein the inner and the outer cannula (2, 3) at the proximal ends (2a, 3a) thereof are mounted onto a hub (4) that comprises a biasing mechanism (43) being coupled to the inner cannula (3) and being arranged to bias the inner cannula (3) automatically from a retracted towards an advanced position in case of absence of resistance against the inner cannula (3), wherein the outer cannula (2) comprises one or more second flow-through orifices (22) that are in fluid communication with one or more second ducts (21) arranged between the outer and the inner cannula (2, 3), wherein the second flow-through orifices (22), the hub (4) and the second duct(s) (21) are configured to allow at least one fluid flow therethrough.
    • 本发明涉及一种多插管手术器械(1),其包括可移动地设置在外套管(2)内的内套管(3),所述内插管(3)包括钝的远端尖端(3b),一个或多个第一 内部管道(31)和一个或多个第一流通通孔(32),其布置成允许一个或多个流体流过其中,其中在其近端(2a,3a)处的内部和外部插管(2,3) 安装在轮毂(4)上,所述轮毂(4)包括联接到所述内套管(3)的偏置机构(43)并且被布置成在没有阻力的情况下将所述内套管(3)自动地从缩回向前进位置偏压 所述内套管(3),其中所述外套管(2)包括一个或多个第二流通孔(22),其与布置在所述外套管(2)和所述内插管(2)之间的一个或多个第二管道(21)流体连通 ,3),其中所述第二流通孔(22),所述毂(4)和所述第二导管(2) 1)构造成允许至少一个流体流过其中。