利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

132 条记录 (耗时 0.048 秒)

    Devices and methods for creating lesions in endocardial and surrounding tissue to isolate focal arrhythmia substrates
    92.
    发明授权
    Devices and methods for creating lesions in endocardial and surrounding tissue to isolate focal arrhythmia substrates 有权
    用于在心内膜和周围组织中产生损伤以分离局部心律失常底物的装置和方法

    公开(公告)号：US06917834B2

    公开(公告)日：2005-07-12

    申请号：US09975393

    申请日：2001-10-10

    申请人： Josef V. Koblish ,  Russell B. Thompson ,  James G. Whayne ,  Yi Yang ,  David K. Swanson ,  Sidney D. Fleischman

    发明人： Josef V. Koblish ,  Russell B. Thompson ,  James G. Whayne ,  Yi Yang ,  David K. Swanson ,  Sidney D. Fleischman

    IPC分类号： A61B18/00 ,  A61B18/14 ,  A61N1/00

    CPC分类号： A61B18/1492 ,  A61B2018/00023 ,  A61B2018/00065 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00238 ,  A61B2018/00267 ,  A61B2018/00273 ,  A61B2018/00285 ,  A61B2018/00357 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/1435

    摘要： Devices and methods are provided for creating lesions in endocardial tissues surrounding a vessel opening to thereby isolate focal arrhythmia substrates, including an invasive catheter assembly comprising an elongate body having a longitudinal axis and first and second lumens, a first catheter having a distally mounted expandable anchor body disposed in the first lumen, and a second catheter having a distally mounted electrode disposed in the second lumen, the elongate body having a first distal opening accessing the first lumen through which the first catheter may be extended axially relative to the longitudinal axis of the elongate body and a second distal opening accessing the second lumen through which the second catheter may be extended at an angle relative to the longitudinal axis of the elongate body. The disclosed invention also includes an elongate catheter having an expandable electrode body mounted on one end, wherein the electrode body is configured to form an enlarged circumferential region when expanded, the enlarged circumferential region defining a distal facing surface of the electrode body, the distal facing surface including an area configured to emit radio frequency (RF) energy.

    摘要翻译： 提供了用于在围绕血管开口的心内膜组织中产生损伤的装置和方法，从而分离局部心律失常基底，包括侵入性导管组件，其包括具有纵轴和第一和第二腔的细长体，具有远端安装的可扩张锚的第一导管 主体设置在第一内腔中，第二导管具有设置在第二内腔中的远侧安装的电极，细长主体具有进入第一内腔的第一远端开口，第一导管可相对于第一内腔的纵向轴线轴向延伸穿过第一内腔， 细长体和进入第二内腔的第二远端开口，第二导管可以通过第二内腔相对于细长体的纵向轴线以一定角度延伸。 所公开的发明还包括具有安装在一端上的可膨胀电极体的细长导管，其中电极体被构造成在膨胀时形成扩大的周向区域，扩大的圆周区域限定电极体的远侧面， 表面，其包括被配置为发射射频（RF）能量的区域。

    Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditions and the like
    100.
    发明授权
    Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditions and the like 失效
    用于在治疗心脏病况等中烧蚀组织以形成复杂病变图案的复合结构和方法

    公开(公告)号：US07115122B1

    公开(公告)日：2006-10-03

    申请号：US09505354

    申请日：2000-02-16

    申请人： David K. Swanson ,  Sidney D. Fleischman ,  Thomas F. Kordis ,  David L. McGee

    发明人： David K. Swanson ,  Sidney D. Fleischman ,  Thomas F. Kordis ,  David L. McGee

    IPC分类号： A61B18/18 ,  A61B19/00

    CPC分类号： A61B18/1492 ,  A61B2017/003 ,  A61B2018/00083 ,  A61B2018/00196 ,  A61B2018/00214 ,  A61B2018/00267 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2018/1437 ,  A61B2018/1467 ,  A61B2018/1497

    摘要： A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template. Guided by the template, energy emitting and non-energy emitting zones are formed on the elements. By overlaying the elements, the composite structure is formed, which can be introduced into the body to ablate tissue using catheter-based, vascular access techniques.

    摘要翻译： 心脏中消融组织以治疗心房颤动的方法将所选择的心房引入能量发射元件。 该方法将该元件暴露于心房壁的一个区域，并向该元件施加消融能量以热破坏组织。 该方法形成包括细长的直线损伤和细长的曲线损伤的褶皱病变图案。 病变图案沿着激活心房心肌的路径引导心房心肌内的电脉冲，同时中断再入电路，如果不中断，将引起原纤维化。 该方法模拟外科迷宫手术，但适用于不需要开放心脏手术技术的基于导管的手术。 用于执行该方法的复合结构使用在平面图中显示用于组织的期望损伤图案的模板来形成。 间隔开的元件阵列放置在模板上。 在模板的指导下，在元件上形成能量发射和非能量发射区。 通过覆盖元件，形成复合结构，其可以引入体内以使用基于导管的血管通路技术来烧蚀组织。