公开(公告)号：US6120476A

公开(公告)日：2000-09-19

申请号：US982113

申请日：1997-12-01

申请人： Michele M. Fung ,  Dean M. Ponzi ,  Wilton W. Webster, Jr.

发明人： Michele M. Fung ,  Dean M. Ponzi ,  Wilton W. Webster, Jr.

IPC分类号： A61B18/04 ,  A61B5/055 ,  A61B18/00 ,  A61B18/12 ,  A61B18/14 ,  A61M25/00 ,  A61M25/01 ,  A61M37/00 ,  A61N1/00

CPC分类号： A61M25/0147 ,  A61B18/1492 ,  A61M25/0136 ,  A61B2017/003 ,  A61B2018/00029 ,  A61B2018/0016 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2034/2051 ,  A61M2025/015

摘要： A steerable catheter having an irrigated tip comprises a catheter body having an outer wall, proximal and distal ends, and a single lumen extending therethrough. A control handle is fixedly attached to the proximal end of the catheter body. A tip section comprising a flexible tubing having proximal and distal ends and at least two lumens extending therethrough is fixedly attached to the distal end of the catheter body. A tip electrode is fixedly attached to the distal end of the tip section. The tip electrode has at least one fluid passage in fluid communication with a lumen in the tip section. An infusion tube having proximal and distal ends extends through the lumen in the catheter body. The distal end of the infusion tube is in open communication with the proximal end of the fluid passage in the tip electrode such that fluid can flow through the infusion tube, into the fluid passage in the tip electrode to the outer surface of the tip electrode. The catheter further comprises one or more puller wires attached at their distal ends to the tip section and at their proximal ends to the control handle for deflecting the tip section by manipulation of the control handle.

摘要翻译： 具有灌溉尖端的可导向导管包括具有外壁，近端和远端以及从其延伸的单个内腔的导管主体。 控制柄固定地附接到导管主体的近端。 包括具有近端和远端以及延伸穿过其中的至少两个腔的柔性管的尖端部分固定地附接到导管主体的远端。 尖端电极固定地附接到尖端部分的远端。 尖端电极具有与尖端部分的内腔流体连通的至少一个流体通道。 具有近端和远端的输注管延伸穿过导管主体中的内腔。 输液管的远端与尖端电极中的流体通道的近端开口连通，使得流体可以流过输注管，进入尖端电极中的流体通道到尖端电极的外表面。 导管还包括一个或多个牵引线，其在其远端附接到尖端部分，并且在其近端处连接到控制手柄，用于通过操纵控制手柄来偏转尖端部分。

公开(公告)号：US06602242B1

公开(公告)日：2003-08-05

申请号：US09502359

申请日：2000-02-15

申请人： Michele M. Fung ,  Dean M. Ponzi ,  Wilton W. Webster, Jr.

发明人： Michele M. Fung ,  Dean M. Ponzi ,  Wilton W. Webster, Jr.

IPC分类号： A61M2501

CPC分类号： A61M25/0147 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2018/00029 ,  A61B2018/0016 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2034/2051 ,  A61M25/0136 ,  A61M2025/015

摘要： A steerable irrigated tip catheter is provided. The catheter includes a catheter body, a control handle at the proximal end of the catheter body, and a tip section at the distal end of the catheter body. The tip section comprises a segment of flexible tubing with a tip electrode fixedly attached to its distal end. The tip electrode has a fluid passage in fluid communication with a lumen in the tip section. The fluid passage comprises at least one transverse passage or is formed by interconnecting pores of the tip electrode. An infusion tube extends through the catheter body and tip section and is anchored at its distal end in the proximal end of the fluid passage in the tip electrode. In use, fluid can flow through the infusion tube, into the fluid passage in the tip electrode and through the tip electrode to the outer surface of the tip electrode.

摘要翻译： 提供了可操纵的灌注式尖端导管。 导管包括导管主体，在导管主体的近端处的控制手柄以及在导管主体的远端处的尖端部分。 尖端部分包括一段柔性管，其末端电极固定地连接到其远端。 尖端电极具有与尖端部分的内腔流体连通的流体通道。 流体通道包括至少一个横向通道，或者通过使尖端电极的孔相互连接形成。 输液管延伸穿过导管主体和尖端部分，并且在尖端电极中的流体通道的近端的远端处被锚定。 在使用中，流体可以流过输注管，进入尖端电极中的流体通道并且通过尖端电极流到尖端电极的外表面。

公开(公告)号：US06466818B1

公开(公告)日：2002-10-15

申请号：US09371905

申请日：1999-08-10

申请人： Shahram Moaddeb ,  Michele M. Fung ,  Gregory G. Brucker ,  Steven D. Savage

发明人： Shahram Moaddeb ,  Michele M. Fung ,  Gregory G. Brucker ,  Steven D. Savage

IPC分类号： A61N130

CPC分类号： A61N1/06

摘要： An irrigated tip catheter comprises a catheter body, a tip section, and a porous tip electrode. The catheter body has an outer wall, proximal and distal ends, and a lumen extending therethrough. The tip section comprises a segment of flexible tubing having proximal and distal ends and at least one lumen therethrough. The proximal end of the tip section is fixedly attached to the distal end of the catheter body. The porous tip electrode is fixedly attached to the distal end of the tubing of the tip section. The tip electrode has an outer surface and comprises a body and an insert. The body comprises a porous material through which fluid can pass and has a cavity therein. The insert, which comprises a non-porous material, is contained within the cavity of the shell. The insert has at least one passage extending therethrough in fluid communication with a lumen in the tip section. An infusion tube having proximal and distal ends extends through the central lumen in the catheter body. The distal end of the infusion tube is in fluid communication with the proximal end of the passage in the tip electrode, whereby fluid can flow through the infusion tube, into the passage in the tip electrode and through the porous material of tip electrode to the outer surface of the tip electrode.

摘要翻译： 灌注的尖端导管包括导管主体，尖端部分和多孔尖端电极。 导管主体具有外壁，近端和远端以及从其延伸穿过的内腔。 尖端部分包括具有近端和远端以及穿过其中的至少一个内腔的柔性管段。 尖端部分的近端固定地附接到导管主体的远端。 多孔尖端电极固定地附接到尖端部分的管道的远端。 尖端电极具有外表面并且包括主体和插入件。 主体包括多孔材料，流体可穿过该多孔材料并且其中具有空腔。 包括无孔材料的插入件被包含在壳的空腔内。 插入件具有至少一个通过其延伸穿过其中的通道，其与尖端部分中的内腔流体连通。 具有近端和远端的输液管延伸穿过导管主体中的中心腔。 输液管的远端与尖端电极中的通道的近端流体连通，由此流体可以流过输注管，进入尖端电极的通道并通过尖端电极的多孔材料到外部 尖端电极的表面。

公开(公告)号：US06405078B1

公开(公告)日：2002-06-11

申请号：US09371438

申请日：1999-08-10

申请人： Shahram Moaddeb ,  Michele M. Fung

发明人： Shahram Moaddeb ,  Michele M. Fung

IPC分类号： A61N130

CPC分类号： A61N1/06

摘要： A porous tip electrode for a catheter comprises a body and an insert. The body comprises a porous material through which fluid can pass and a cavity therein. The insert, which is contained therein, has proximal and distal ends and comprises a non-porous material contained within the cavity. The insert having at least one passage extending therethrough and at least blind hole extending from its proximal end.

摘要翻译： 用于导管的多孔尖端电极包括主体和插入件。 主体包括流体可以通过的多孔材料和其中的空腔。 其中包含的插入件具有近端和远端，并且包括容纳在腔内的无孔材料。 所述插入件具有至少一个通过其延伸的通道和至少从其近端延伸的盲孔。