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    Porous irrigated tip electrode catheter
    1.
    发明授权
    Porous irrigated tip electrode catheter 有权
    多孔灌注电极导管

    公开(公告)号：US06466818B1

    公开(公告)日：2002-10-15

    申请号：US09371905

    申请日：1999-08-10

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

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

    IPC: A61N130

    CPC classification number: A61N1/06

    Abstract: 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.

    Abstract translation: 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。

    Linear catheter ablation system
    2.
    发明授权
    Linear catheter ablation system 失效
    线性导管消融系统

    公开(公告)号：US6063080A

    公开(公告)日：2000-05-16

    申请号：US73651

    申请日：1998-05-06

    Applicant: Dale K. Nelson ,  Steven D. Savage ,  Brad D. Pedersen ,  Whitney A. McFarlin

    Inventor： Dale K. Nelson ,  Steven D. Savage ,  Brad D. Pedersen ,  Whitney A. McFarlin

    IPC: A61B18/14 ,  A61B17/39

    CPC classification number: A61B18/1492 ,  A61B18/1815 ,  A61B2017/003 ,  A61B2018/00214 ,  A61B2018/00916

    Abstract: A radio frequency (RF) ablation catheter system utilizes a flexible, tubular electrode that is selectively extendable from a distal end of a catheter body. The flexible, tubular electrode creates a continuous linear lesion when a longitudinal side of the electrode is arcuately positioned against an interior wall of the human body and the electrode is energized while a cooling fluid passes through the electrode. The catheter system also includes mechanisms for remotely manipulating and extending the electrode. Preferably, the catheter body include a catheter shaft and a flexible tip section such that the distal end of the catheter is steerable. The invention also includes a method of operating the RF catheter ablation system so as to create arcuate linear lesions.

    Abstract translation: 射频（RF）消融导管系统利用可从导管主体的远端选择性地延伸的柔性管状电极。 当电极的纵向侧面相对于人体的内壁弧形地定位时，柔性管状电极产生连续的线性损伤，并且电极在冷却流体通过电极时通电。 导管系统还包括用于远程操纵和延伸电极的机构。 优选地，导管主体包括导管轴和柔性尖端部分，使得导管的远端是可操纵的。 本发明还包括操作RF导管消融系统以产生弓形线性损伤的方法。

    Multi-fiber laser catheter
    8.
    发明授权
    Multi-fiber laser catheter 失效
    多光纤激光导管

    公开(公告)号：US5830209A

    公开(公告)日：1998-11-03

    申请号：US529810

    申请日：1995-09-18

    Applicant: Steven D. Savage ,  Gregory G. Brucker

    Inventor： Steven D. Savage ,  Gregory G. Brucker

    IPC: A61B17/00 ,  A61B17/22 ,  A61B18/00 ,  A61B18/24 ,  A61B17/36

    CPC classification number: A61B18/24 ,  A61B2017/00092 ,  A61B2017/00243 ,  A61B2017/22038 ,  A61B2018/00011

    Abstract: Laser catheters according to the invention include multiple optical fibers for delivery of laser energy to a pre-determined treatment site in the therapeutic treatment of cardiac tissue. A fixation device fixes the distal end of the catheter to the treatment site. Temperature sensing devices disposed on the fixation device provide a temperature depth profile of the tissue treatment site, which can be used to control the treatment. Multi-piece, single-piece and porous tip catheters are disclosed.

    Abstract translation: 根据本发明的激光导管包括用于在心脏组织的治疗性治疗中将激光能量传递到预定治疗部位的多根光纤。 固定装置将导管的远端固定到治疗部位。 设置在固定装置上的温度感测装置提供可用于控制处理的组织处理部位的温度深度分布。 公开了多片，单件和多孔尖端导管。

    Temperature-Responsive Irrigated Ablation Electrode with Reduced Coolant Flow and related methods for making and using
    9.
    发明申请
    Temperature-Responsive Irrigated Ablation Electrode with Reduced Coolant Flow and related methods for making and using 有权
    具有降低冷却剂流量的温度响应性灌注消融电极及其制造和使用的相关方法

    公开(公告)号：US20150272669A1

    公开(公告)日：2015-10-01

    申请号：US14676789

    申请日：2015-04-01

    Applicant: Gregory G. Brucker ,  Steven D. Savage

    Inventor： Gregory G. Brucker ,  Steven D. Savage

    IPC: A61B18/14

    CPC classification number: A61B18/1492 ,  A61B2018/00011 ,  A61B2018/00029 ,  A61B2018/00714 ,  A61B2018/00791

    Abstract: The present invention provides an irrigated ablation electrode that includes a plurality of high L/d interior fluid passageways and/or slit-shaped apertures to provide for a lower rate of fluid flow and a more uniform distribution of fluid over an exterior surface of the electrode and reduce propensity for aperture blockage. In some embodiments, the slit-shaped apertures have an aspect ratio of at least three, at least five, at least ten, or at least fifteen. Some embodiments include maintaining a pressure drop of at least 345 pascals between irrigation fluid inside the irrigated ablation electrode and fluid immediately outside the electrode when the irrigation fluid has a flow rate of no more than five milliliters per minute (5 ml/min). Some embodiments include a low-density insert with a plurality of fluid channels on its exterior surface to more efficiently cool the electrode and provide a faster thermal response.

    Abstract translation: 本发明提供了一种灌溉消融电极，其包括多个高L / d内部流体通道和/或狭缝形孔，以提供更低的流体流速和在电极的外表面上更均匀的流体分布 并减少孔径堵塞的倾向。 在一些实施例中，狭缝状孔具有至少三个，至少五个，至少十个，或至少十五个的纵横比。 一些实施方案包括当冲洗流体的流速不超过5毫升每分钟（5ml / min）时，保持冲洗消融电极内部的冲洗流体和紧邻电极外部的流体之间的至少345帕斯卡的压降。 一些实施例包括在其外表面上具有多个流体通道的低密度插入件，以更有效地冷却电极并提供更快的热响应。

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