Variable length uretheral stent
    2.
    发明授权
    Variable length uretheral stent 失效
    可变长度输尿管支架

    公开(公告)号:US5681274A

    公开(公告)日:1997-10-28

    申请号:US414649

    申请日:1995-03-31

    IPC分类号: A61M25/00 A61M37/00

    CPC分类号: A61M27/008 A61M25/00

    摘要: A variable length ureteral stent assembly. A central catheter tube forms a ureter stent with a retention structure for anchoring the stent in the ureter particularly within the bladder and kidney. The catheter tube is formed of a shape memory material and at least one of the retention structures includes a end portion of the catheter wrapped spirally into a multiple-turn planar coil having an axis that is transverse to the plane of the structure. The retention structure can then be partially unwound while still providing an anchoring function. Partially unwinding increases the length of an intermediate section of the ureteral stent.

    摘要翻译: 可变长度的输尿管支架组件。 中央导管管形成具有保持结构的输尿管支架,用于将支架锚定在输尿管中,特别是在膀胱和肾内。 所述导管由形状记忆材料形成,并且所述保持结构中的至少一个包括所述导管的端部螺旋地卷绕成具有横向于所述结构平面的轴线的多回转平面线圈。 然后保持结构可以部分地解开,同时仍然提供锚固功能。 部分放松可增加输尿管支架中段的长度。