利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

313 条记录 (耗时 0.039 秒)

    Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditions and the like
    81.
    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：US07413568B2

    公开(公告)日：2008-08-19

    申请号：US09870288

    申请日：2001-05-29

    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 ,  A61N1/00

    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。

    Systems and methods for acquiring and analyzing electrograms in myocardial tissue
    88.
    发明授权
    Systems and methods for acquiring and analyzing electrograms in myocardial tissue 有权
    用于获取和分析心肌组织中电描记图的系统和方法

    公开(公告)号：US06487441B1

    公开(公告)日：2002-11-26

    申请号：US09717798

    申请日：2000-11-20

    申请人： David K. Swanson ,  James G. Whayne ,  Dorin Panescu

    发明人： David K. Swanson ,  James G. Whayne ,  Dorin Panescu

    IPC分类号： A61N136

    CPC分类号： A61B5/6855 ,  A61B1/0051 ,  A61B5/0422 ,  A61B5/04525 ,  A61B5/6858 ,  A61B18/1492 ,  A61N1/056 ,  G06F19/00 ,  G16H15/00 ,  G16H40/63

    摘要： Systems and methods for acquiring and analyzing electrograms in myocardial tissue are disclosed and described. One such method includes deploying a three dimensional, radially expanded array of multiple electrodes in operative association with a region of heart tissue; acquiring a sample of a cardiac event by placing the heart at a predetermined location using the multiple electrodes, while conditioning the multiple electrodes to sense paced electrograms occurring in the tissue region during pacing; and electronically comparing the sample to a template of a cardiac event of known diagnosis and generating an output based upon the comparison, whereby the output provides a diagnostic indicator based upon pacing.

    摘要翻译： 公开和描述了用于获取和分析心肌组织中电描记图的系统和方法。 一种这样的方法包括部署与心脏组织区域可操作关联的多个电极的三维径向扩张阵列; 通过使用多个电极将心置于预定位置来获取心脏事件的样本，同时调节多个电极以在起搏期间感测组织区域中出现的起搏电图; 以及将所述样本与已知诊断的心脏事件的模板进行电子比较，并且基于所述比较生成输出，由此所述输出基于起搏提供诊断指示符。