公开(公告)号：US09259552B2

公开(公告)日：2016-02-16

申请号：US13843363

申请日：2013-03-15

Applicant: Abbott Cardiovascular Systems Inc.

Inventor： Aaron M. Fortson ,  Marc Gianotti ,  David Milazzo

IPC: A61B1/00 ,  A61M5/315 ,  A61M25/00 ,  A61B1/04 ,  A61M25/09 ,  A61M31/00

CPC classification number: A61M25/0026 ,  A61M25/003 ,  A61M25/007 ,  A61M25/09 ,  A61M31/005 ,  A61M2025/0039 ,  A61M2025/0076

Abstract: A catheter comprising a first lumen for receiving a guidewire and having an exit opening at a distal tip of the catheter. A second lumen, adjacent the first lumen and separated from the first lumen by a common wall, the second lumen configured for receiving contrast fluid, wherein perforations are formed in the common wall; a guidewire in the first lumen the guidewire being configured to be capable of advancement distally to extend out of the exit opening, the guidewire having two conditions: a first condition in which the guidewire is advanced distally to block the perforations whereby fluid may not flow from the second lumen to the first lumen; a second condition in which the guidewire is withdrawn proximally to unblock the perforations whereby fluid may flow from the second lumen into the first lumen and thence out of the exit opening.

Abstract translation: 导管，其包括用于接收导丝并且在导管的远端处具有出口的第一腔。 第二腔，与第一腔相邻并且与第一腔相隔一个共同的壁，第二腔构造成用于接收对比液，其中在公共壁中形成穿孔; 所述导丝在所述第一管腔中被配置为能够向远侧前进以延伸出所述出口，所述导丝具有两个条件：第一状态，其中所述导丝向远侧推进以阻挡所述穿孔，从而流体不能从 第二个管腔到第一个管腔; 第二条件是其中向导引线被近端地撤回以打开穿孔，由此流体可以从第二腔流入第一管腔并且从那里流出出口。