公开(公告)号：US06273879B1

公开(公告)日：2001-08-14

申请号：US09132119

申请日：1998-08-11

申请人： Peter T. Keith ,  Charles L. Euteneuer

发明人： Peter T. Keith ,  Charles L. Euteneuer

IPC分类号： A21M2500

CPC分类号： A61M25/104 ,  A61M25/0029 ,  A61M25/0032 ,  A61M25/0054 ,  A61M25/0662 ,  A61M2025/0034 ,  A61M2025/0079 ,  A61M2025/0098 ,  A61M2025/0183 ,  A61M2025/09191 ,  A61M2025/1056 ,  A61M2025/1061 ,  A61M2025/1079

摘要： An over-the-wire balloon dilatation catheter has a stainless steel hypotube catheter shaft, an intermediate sleeve section bonded to the shaft and a distal balloon section connected to the sleeve section. The sleeve section is formed from relatively flexible polymer materials and includes an inner core tube which defines a guide wire lumen extending only through a distal portion of the catheter (including its sleeve and balloon sections) to facilitate fast balloon catheter exchanges. A distal end of the hypotube shaft is crimped laterally and the core tube is nested and bonded within the crimp to provide a proximal outlet for the guide wire lumen. The hypotube shaft provides an inflation lumen for the balloon, with the inflation lumen being continued as an annular inflation lumen through the sleeve section where an outer sleeve is bonded about the core tube and extends from the distal end of the hypotube shaft to the balloon section. A kink-resistant coil structure extends distally from the distal end of the hypotube shaft to provide a gradual change in stiffness along the length of the catheter from the relatively stiff hypotube shaft to the relatively flexible distal portion of the catheter.

摘要翻译： 超线球囊扩张导管具有不锈钢海波管导管轴，粘结到轴的中间套筒部分和连接到套筒部分的远端球囊部分。 套筒部分由相对柔性的聚合物材料形成并且包括内芯管，其限定仅通过导管的远端部分（包括其套管和气囊部分）延伸的导丝管腔，以便于快速气囊导管交换。 海波管轴的远端横向卷曲，并且芯管嵌套并粘合在卷曲内以提供用于导丝管腔的近端出口。 海波管轴为球囊提供充气腔，其中膨胀腔作为通过套管部分的环形膨胀腔继续，其中外套筒围绕芯管结合并且从海波管的远端延伸到球囊部分 。 抗扭线圈结构从海波管的远端向远端延伸，以沿着导管的长度从相对刚性的海波管轴到导管的相对柔性的远侧部分逐渐改变刚度。