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    Multiple layer high strength balloon for dilatation catheter
    4.
    发明授权
    Multiple layer high strength balloon for dilatation catheter 失效
    多层高强度气球用于扩张导管

    公开(公告)号：US5755690A

    公开(公告)日：1998-05-26

    申请号：US327300

    申请日：1994-10-21

    申请人： Mark A. Saab

    发明人： Mark A. Saab

    IPC分类号： A61L29/06 ,  A61M25/00 ,  A61M29/00

    CPC分类号： A61M25/1029 ,  A61L29/06 ,  A61M2025/1075 ,  A61M25/1038 ,  Y10T428/1334

    摘要： A multilayer high strength balloon for a dilation catheter is provided. The balloon comprises a plurality of balloon layers, including an inner layer which has a cylindrical midportion, a cone at each end, and necks at the ends of the cones, and at least one additional layers which have the cylindrical midportions and cones. Each layer is formed from an inelastic, polymeric material, and perhaps an inelastic, biaxially oriented, thermoplastic material. Preferably, one or more of the balloon layers is blow molded and stretched to biaxially orient the material to form a very high strength layer. The multilayer balloon resulting from the plurality of balloon layers, of which one or more has been biaxially oriented, is stronger than a single layer balloon of the same finished diameter which has been made from the same material with comparable thickness. The composite high strength balloon may be formed to eliminate undesirable thickening of the cone regions of conventional blow molded balloon designs by stepping the cone regions so that they are not substantially greater than the wall thickness in the midportion of the balloon. The resulting balloon is better adapted to collapse to a low profile about the catheter shaft on which it is mounted.

    摘要翻译： 提供了一种用于扩张导管的多层高强度球囊。 气球包括多个球囊层，其包括具有圆柱形中间部分的内层，在每个端部处的锥体和在锥体的端部处的颈部，以及至少一个具有圆柱形中间部分和锥体的附加层。 每个层由非弹性的聚合物材料形成，并且可能是非弹性的，双轴取向的热塑性材料。 优选地，将一个或多个气囊层吹塑并拉伸以使材料双轴取向以形成非常高的强度层。 由多个气囊层产生的多层气囊，其中一个或多个已经双轴取向，比由具有相当厚度的相同材料制成的相同成品直径的单层球囊更坚固。 可以形成复合高强度气囊，以通过步进锥体区域来消除常规吹塑气囊设计的锥体区域的不期望的增厚，使得它们基本上不大于气囊中部的壁厚度。 所得到的气球更适合于围绕安装在其上的导管轴塌陷到低轮廓。

    Method of treating obstructed regions of bodily passages
    6.
    发明授权
    Method of treating obstructed regions of bodily passages 失效
    治疗身体通道阻塞区域的方法

    公开(公告)号：US5246421A

    公开(公告)日：1993-09-21

    申请号：US834602

    申请日：1992-02-12

    申请人： Mark A. Saab

    发明人： Mark A. Saab

    IPC分类号： A61M29/02

    CPC分类号： A61M25/104 ,  A61M2025/1068 ,  A61M2025/1081

    摘要： An adjustable-length balloon dilatation catheter apparatus and a method for using the same are disclosed wherein an adjustable sheath is externally manipulated to partially surround and contain the dilatation balloon segment of the catheter while the catheter and balloon segment are in situ during a treatment procedure. By sliding the sheath forward or backward to expose a predetermined length of the balloon segment prior to inflating the balloon, the catheter apparatus of this invention is useful in medical procedures requiring balloons of varying lengths.

    摘要翻译： 公开了一种可调节长度的球囊扩张导管装置及其使用方法，其中可外部操纵可调节护套以在治疗过程期间导管和球囊部分原位地部分地围绕和容纳导管的扩张气囊部分。 通过在充气气囊之前向前或向后滑动鞘以露出预定长度的气囊段，本发明的导管装置在需要不同长度的气囊的医疗过程中是有用的。