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    Methods of cardiac ablation employing a deflectable sheath catheter
    1.
    发明申请
    Methods of cardiac ablation employing a deflectable sheath catheter 审中-公开
    心脏消融方法采用可挠性护套导管

    公开(公告)号：US20050222558A1

    公开(公告)日：2005-10-06

    申请号：US11062906

    申请日：2005-02-22

    申请人： Lincoln Baxter ,  Jeffrey Arnold ,  Gerald Melsky

    发明人： Lincoln Baxter ,  Jeffrey Arnold ,  Gerald Melsky

    IPC分类号： A61B17/22 ,  A61B18/02 ,  A61B18/04 ,  A61B18/14 ,  A61B18/18 ,  A61B18/20 ,  A61B18/24 ,  A61N7/02

    CPC分类号： A61B18/1492 ,  A61B18/24 ,  A61B2017/22051 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00285 ,  A61B2018/00375 ,  A61B2018/0262 ,  A61N7/02

    摘要： The present invention provides devices and methods for the treatment of atrial fibrillation. In one embodiment method for treatment of atrial fibrillation is provided that includes positioning a sheath catheter having a deflectable distal end segment in the left atrium of a heart, orienting said sheath catheter such that an ablation instrument can be delivered through the sheath catheter to a position proximal to a first pulmonary vein, activating the ablation instrument to form a circumferential lesion around the first pulmonary vein, repositioning the sheath catheter by deflecting the distal end segment to another orientation, and activating the ablation instrument to form a circumferential lesion around at least one additional pulmonary vein.

    摘要翻译： 本发明提供了用于治疗房颤的装置和方法。 在一个实施方案中，提供了一种用于治疗心房颤动的方法，其包括将具有可偏转的远端段的护套导管定位在心脏的左心房中，定向所述护套导管，使得消融器械可以通过护套导管递送到位置 接近第一肺静脉，激活消融器械以形成围绕第一肺静脉的周围损伤，通过将远端段偏转到另一取向来重新定位鞘导管，并激活消融器械以形成围绕至少一个的周围损伤 额外的肺静脉。

    Methods of cardiac ablation in the vicinity of the right inferior pulmonary vein
    5.
    发明申请
    Methods of cardiac ablation in the vicinity of the right inferior pulmonary vein 审中-公开
    右下肺静脉附近心脏消融的方法

    公开(公告)号：US20050234436A1

    公开(公告)日：2005-10-20

    申请号：US11062774

    申请日：2005-02-22

    申请人： Lincoln Baxter ,  Jeffrey Arnold ,  Gerald Melsky

    发明人： Lincoln Baxter ,  Jeffrey Arnold ,  Gerald Melsky

    IPC分类号： A61B17/22 ,  A61B18/02 ,  A61B18/04 ,  A61B18/14 ,  A61B18/18 ,  A61B18/20 ,  A61B18/24 ,  A61N7/02

    CPC分类号： A61B18/24 ,  A61B18/1492 ,  A61B2017/22051 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00285 ,  A61B2018/00375 ,  A61B2018/0262 ,  A61N7/02

    摘要： The present invention provides devices and methods for the treatment of atrial fibrillation. In one embodiment a method for ablating tissue about an ostium of a right inferior vein of a heart includes positioning a sheath catheter having a deflectable distal end segment with a bent tip element in the left atrium of a heart, causing the distal end segment to deflect in a compound curve as the catheter is advanced towards an ostium of a right inferior vein, orienting said sheath catheter such that an ablation instrument can be delivered through the sheath catheter to a position proximal to the right inferior vein, and activating the ablation instrument to form at least one lesion about the right inferior vein.

    摘要翻译： 本发明提供了用于治疗房颤的装置和方法。 在一个实施例中，一种用于在围绕心脏右下静脉的口腔上消融组织的方法包括将具有可偏转远端段的鞘导管定位在心脏的左心房中的弯曲尖端元件，使远端段偏转 当导管朝向右下静脉的口向前进时的复合曲线中，使所述鞘导管定向，使得消融器械可以通过鞘导管输送到靠近右下静脉的位置，并且激活消融器械 形成关于右下静脉的至少一个病变。

    Methods for ablation with radiant energy
    10.
    发明申请
    Methods for ablation with radiant energy 有权

    公开(公告)号：US20060253113A1

    公开(公告)日：2006-11-09

    申请号：US11481204

    申请日：2006-07-05

    申请人： Jeffrey Arnold ,  Edward Sinofsky ,  Lincoln Baxter ,  Norman Farr

    发明人： Jeffrey Arnold ,  Edward Sinofsky ,  Lincoln Baxter ,  Norman Farr

    IPC分类号： A61B18/18

    CPC分类号： A61B18/24 ,  A61B18/245 ,  A61B2017/00057 ,  A61B2017/00061 ,  A61B2018/0097 ,  A61B2018/2261 ,  A61B2018/2266 ,  A61B2018/2272 ,  A61B2090/065 ,  A61L2/10 ,  A61L29/085 ,  A61N7/02 ,  C08L27/12

    摘要： Ablation methods and instruments are disclosed for creating lesions in tissue, especially cardiac tissue for treatment of arrhythmias and the like. Percutaneous ablation instruments in the form of coaxial catheter bodies are disclosed having at least one central lumen therein and having one or more balloon structures at the distal end region of the instrument. The instruments include an energy emitting element which is independently positionable within the lumen of the instrument and adapted to project radiant energy through a transmissive region of a projection balloon to a target tissue site. The instrument can optionally include at least one expandable anchor balloon disposed about, or incorporated into an inner catheter body designed to be slid over a guidewire. This anchor balloon can serve to position the device within a lumen, such as a pulmonary vein. A projection balloon structure is also disclosed that can be slid over the first (anchor balloon) catheter body and inflated within the heart, to define a staging from which to project radiant energy. An ablative fluid can also be employed outside of the instrument (e.g., between the balloon and the target region) to ensure efficient transmission of the radiant energy when the instrument is deployed. In another aspect of the invention, generally applicable to a wide range of cardiac ablation instruments, mechanisms are disclosed for determining whether the instrument has been properly seated within the heart, e.g., whether the device is in contact with a pulmonary vein and/or the atrial surface, in order to form a lesion by heating, cooling or projecting energy. This contact-sensing feature can be implemented by an illumination source situated within the instrument and an optical detector that monitors the level of reflected light. Measurements of the reflected light (or wavelengths of the reflected light) can thus be used to determine whether contact has been achieved and whether such contact is continuous over a desired ablation path.