Apparatus for manufacturing extruded coiled tubes for medical purposes
    3.
    发明公开
    Apparatus for manufacturing extruded coiled tubes for medical purposes 有权
    Vorrichtung zur Herstellung挤出机Spiralrohrefürmedizinische Zwecke

    公开(公告)号:EP2191954A1

    公开(公告)日:2010-06-02

    申请号:EP08425760.9

    申请日:2008-11-26

    申请人: Covidien AG

    IPC分类号: B29C53/82 B29C53/60

    摘要: An apparatus (10*) for manufacturing extruded coiled tubes (TS) for medical purposes. The apparatus comprises:
    - rotary shafts (12) protruding from a spindle (11), each rotary shaft (12) being coupled to a respective flexible shaft (13) resting on a series of supporting elements (DSC) substantially equidistant to each other and supported by a main central shaft (19);
    - at least an extrusion head to extrude a ribbon (PT), and at least an extrusion head to extrude a rib (NR) ; the ribbon (PT) and the rib (NR) being co-extruded, side by side, and being wound on an ideal surface formed by the external surfaces of the flexible shafts (13).
    The apparatus (10) is characterized in that , for changing the pitch with which the rib (NR) is wound on a base tubular element (ETB), formed on its turn by the winding coil of the ribbon (PT), at least two twisting bars (BT) operated by a crank (MN) are used to rotate the supporting elements (DSC) with a pre-defined angle.

    摘要翻译: 一种用于制造用于医疗目的的挤压卷管(TS)的装置(10 *)。 该设备包括: - 从主轴(11)突出的旋转轴(12),每个旋转轴(12)联接到相应的柔性轴(13),所述相应的柔性轴(13)位于彼此基本上等距的一系列支撑元件(DSC)上, 由主中心轴(19)支撑; - 至少一个用于挤出带(PT)的挤出头,以及至少挤压头挤出肋(NR); 并排共挤出并缠绕在由柔性轴(13)的外表面形成的理想表面上的带(PT)和肋(NR)。 所述装置(10)的特征在于,为了改变所述肋(NR)卷绕在由所述带(PT)的绕组线圈转动的基础管状元件(ETB)上的间距,至少两个 使用由曲柄(MN)操作的扭转杆(BT)以预定角度旋转支撑元件(DSC)。