公开(公告)号：US6030405A

公开(公告)日：2000-02-29

申请号：US104949

申请日：1998-06-25

申请人： David J. Zarbatany ,  Rafael Pintor ,  Maurice Verbeek

发明人： David J. Zarbatany ,  Rafael Pintor ,  Maurice Verbeek

IPC分类号： A61M25/00 ,  A61M29/02 ,  A61M29/00

CPC分类号： A61M25/0054 ,  A61M2025/0063 ,  A61M2025/0098 ,  A61M25/104

摘要： A dilation catheter having a balloon inflation shaft with an inflation lumen into which a stiffening wire extends and a guidewire shaft having a guide wire lumen adjacent to the balloon. The stiffening wire includes at least two stepped diameter reductions along its length to vary stiffness from a stiff proximal end providing improved pushability to a less stiff distal end providing improved trackability. A manifold at the inflation shaft proximal end includes a handle for adjusting the distance the stiffening wire extends into the inflation lumen to allow stiffness to be optimized. The handle includes a tubular flange frictionally engaging the manifold to prevent inadvertent handle movement. The balloon inflation shaft and guidewire shafts are bonded together in a manner producing an assembly having a circular cross section for improved connection to a circular balloon and improved catheter performance.

摘要翻译： 一种扩张导管，其具有球囊充气轴，所述球囊充气轴具有充气腔，加强线延伸到所述膨胀腔内，导丝轴具有与球囊相邻的导丝腔。 加强丝线沿其长度包括至少两个阶梯直径的减小，以从刚性近端改变刚度，从而提供对较不刚性的远端提供改善的推进性，从而提供改善的跟踪性。 在充气轴近端处的歧管包括用于调节加强丝延伸到充气腔中的距离的手柄，以允许优化刚度。 手柄包括与歧管摩擦接合的管状凸缘，以防止无意的手柄移动。 球囊充气轴和导丝轴以一种产生具有圆形横截面的组件的方式结合在一起，以改善与圆形气囊的连接并改善导管性能。