公开(公告)号：US20140243734A1

公开(公告)日：2014-08-28

申请号：US13777972

申请日：2013-02-26

Applicant: MEDRAD, INC.

Inventor： Shannon Eubanks ,  Michael David Nelson

IPC: A61M25/09

CPC classification number: A61M25/09041 ,  A61B17/3207 ,  A61B2017/22038 ,  A61M25/0113 ,  A61M25/0169 ,  A61M25/09 ,  A61M2025/09116 ,  A61M2025/09125

Abstract: Interventional catheter assemblies that operate over a guide wire are disclosed. Specifically, an elongated flexible catheter is associated at its proximal end with a housing having a guide wire port where the guide wire exits the housing. The housing additionally incorporates a guide wire brake mounted within a slot positioned a distance from the guide wire port for engaging and releasing a guide wire. The slot is generally arranged at an angle to the path of the guide wire as it exits the guide wire port. When the guide wire is clamped in the angled slot, variable lengths of exposed guide wire accumulate in a substantially unrestrained condition when the flexible catheter is advanced and retracted relative to the guide wire, allowing movement of the distal end of the catheter over considerable distances without repositioning and re-clamping the proximal end of the guide wire.

Abstract translation: 公开了在导丝上操作的介入导管组件。 具体而言，细长的柔性导管在其近端处与具有引导线端口的壳体相连，引导线离开壳体。 壳体还包括安装在与导丝端口一定距离的狭槽内的引导线制动器，用于接合和释放导丝。 该槽通常在导丝离开导丝端口时与导线的路径成一定角度布置。 当导丝被夹紧在成角度的狭槽中时，当柔性导管相对于导丝线前进和缩回时，暴露的导丝的可变长度积聚在基本上无限制的状态，允许导管的远端在相当长的距离上移动而没有 重新定位并重新夹紧导丝的近端。