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1. 发明授权

US6099496A Catheter having a variable length shaft segment and method of use 失效
标题翻译：导管具有可变长度的轴段和使用方法
公开(公告)号：US6099496A
公开(公告)日：2000-08-08
申请号：US164008
申请日：1998-09-30
申请人： William A. Berthiaume , Gregory Toso
发明人： William A. Berthiaume , Gregory Toso
IPC分类号： A61M29/02 , A61M29/00
CPC分类号： A61M25/104
摘要： The invention relates to a catheter device and a method of use to enable catheter exchange over a conventional length guidewire without the use of a guidewire extension or exchange wire. The catheter device includes an elongated inflation shaft having a longitudinal inflation lumen, an extension shaft having a longitudinal extension lumen coupled in fluid communication with the inflation lumen, a balloon member disposed at the distal end of the extension shaft and in fluid communication with the inflation lumen, a guidewire shaft having a longitudinal guidewire lumen which extends from the distal end of the balloon member, through the balloon member and extension shaft, to the proximal end of the extension shaft, and a variable length shaft coupled to the proximal end of the extension shaft. The variable length shaft comprises an elastomeric material which may be stretched from a relaxed state of about 10 centimeters to a fully extended state of about 140 centimeters.
摘要翻译：本发明涉及一种导管装置和一种用于在常规长度导丝上进行导管切换的方法，而不需要使用导丝延伸或交换线。导管装置包括具有纵向充气腔的细长充气轴，延伸轴，其具有与膨胀腔流体连通的连接的纵向延伸腔;设置在延伸轴的远端并与膨胀流体连通的球囊构件导丝轴，其具有从球囊构件的远端延伸穿过球囊构件和延伸轴的纵向导丝内腔到延伸轴的近端，以及可变长度的轴，其耦合到延长轴。可变长度轴包括弹性体材料，其可以从约10厘米的松弛状态拉伸至约140厘米的完全伸展状态。

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