Helical surgical snare
    1.
    发明授权
    Helical surgical snare 失效
    螺旋手术圈套

    公开(公告)号:US5342371A

    公开(公告)日:1994-08-30

    申请号:US158008

    申请日:1993-11-24

    摘要: A helical surgical snare (10) for engaging and capturing a foreign body for example in the vascular system of a human or animal body. The helical surgical snare includes an elongated tubular member (11) with the distal portion (34) of a filament wire (17) wrapped around the exterior surface (15) of the distal portion of the tube. The filament wire is positioned within the passage (14) of the tubular member and exits about the distal portion (25) thereof via inclined side ports. The distal end (18) of the filament wire is attached in the passage to the distal end (13) of the tubular member. A helical snare loop (19) is formed externally around the tubular member between the two side ports (16, 20). A handle (30) positioned at the proximal end of the tubular member pushes and pulls the distal portion of the filament wire to operate the snare loop between various open and collapsed positions.

    摘要翻译: 用于接合和捕获例如在人或动物体的血管系统中的异物的螺旋形手术圈套(10)。 螺旋形手术圈套包括细长管状构件(11),其中缠绕在管的远端部分的外表面(15)上的细丝线(17)的远端部分(34)。 细丝线定位在管状构件的通道(14)内,并经由倾斜的侧端口绕其远端部分(25)离开。 细丝线的远端(18)在通向管状构件的远端(13)的附近。 在两个侧端口(16,20)之间的管状构件的外部形成螺旋形圈环(19)。 定位在管状构件的近端处的手柄(30)推动并拉动细丝线的远端部分,以在各种打开和折叠位置之间操作圈套环。