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    Precurved, dual curve cardiac introducer sheath
    1.
    发明授权
    Precurved, dual curve cardiac introducer sheath 失效
    双曲线心脏引导器鞘

    公开(公告)号：US6066126A

    公开(公告)日：2000-05-23

    申请号：US993217

    申请日：1997-12-18

    申请人： Hong Li ,  John W. Gaiser

    发明人： Hong Li ,  John W. Gaiser

    IPC分类号： A61M25/00 ,  A61M25/06

    CPC分类号： A61M25/0041 ,  A61M25/0662

    摘要： A precurved cardiac introducer sheath (4) includes an elongate, hollow body having main and tip portions (24, 22). The tip portion includes first through fifth segments (26, 28, 30, 32, 34). The first, second, and third segments lie in a first plane (36) while the fourth and fifth segments lie in a second plane (38) oriented at a second angle (37) of about .+-.10 to 170.degree. to the first plane. The second segment defines an arc extending along a first, included angle of about 90-110.degree. while the fourth segment defines an arc extending along a third, included angle of about 90-140.degree. . The first, third, and fifth segments are preferably generally straight segments. The precurved introducer sheath is preferably configured to direct the electrophysiology catheter (18) directly at the posterior region (52) of the left atrium (40). The precurved introducer sheath is preferably housed within an outer introducer sheath (46) having a radially deflectable distal end (46), or a fixed distal curve.

    摘要翻译： 一种预先安装的心脏引导器护套（4）包括具有主和末端部分（24,22）的细长的中空体。 尖端部分包括第一至第五段（26,28,30,32,34）。 第一，第二和第三段位于第一平面（36）中，而第四和第五段位于第二平面（38）中，第二平面（38）以大约+/- 10至170°的第二角度（37）定向， 飞机 第二段限定沿着第一夹角约90-110°延伸的弧，而第四段限定沿第三夹角约90-140°延伸的弧。 第一，第三和第五段优选地是大致直段。 优选的引导器护套优选地构造成直接在左心房（40）的后部区域（52）处引导电生理学导管（18）。 优选的引导器护套优选地容纳在具有可径向偏转的远端（46）或固定远端曲线的外引导器护套（46）内。

    Left atrium ablation catheter and method
    2.
    发明授权
    Left atrium ablation catheter and method 有权
    左心房消融导管及方法

    公开(公告)号：US06241728B1

    公开(公告)日：2001-06-05

    申请号：US09395123

    申请日：1999-09-14

    申请人： John W. Gaiser ,  Hong Li

    发明人： John W. Gaiser ,  Hong Li

    IPC分类号： A61B1814

    CPC分类号： A61B18/1492 ,  A61B18/1815 ,  A61B2017/003 ,  A61B2017/00867 ,  A61B2018/00577 ,  A61B2018/1253 ,  A61B2018/1467 ,  C08L2201/12

    摘要： A left atrium ablation catheter (4), including a sheath (8) and a deflectable electrophysiology catheter (10) housed within the sheath, is used to ablate coronary tissue at a target site within the left atrium (LA) of a heart. The electrophysiology catheter has ablation electrodes (24) along the tip (10). The ablation catheter is introduced into the right atrium (RA) through either the superior vena cava (SVC) or the inferior vena cava (IVC). The distal open end of the sheath is guided through a punctured hole in the interatrial septum and into the left atrium. The distal end (20) of the sheath is either precurved or is steerable so the electrode tip can be directed to the coronary target site in the left atrium. The electrode tip is sized and configured to create the desired lesion at the target site without movement of the electrode tip.

    摘要翻译： 包括护套（8）和容纳在护套内的可偏转电生理学导管（10）的左心房消融导管（4）用于在心脏的左心房（LA）内的靶位置消融冠状组织。 电生理学导管具有沿尖端（10）的消融电极（24）。 消融导管通过上腔静脉（SVC）或下腔静脉（IVC）引入右心房（RA）。 护套的远端开口端引导穿过房间隔中的穿刺孔并进入左心房。 鞘的远端（20）是预先的或是可操纵的，使得电极尖端可以被引导到左心房中的冠状动脉靶位点。 电极头的尺寸和构造可以在靶位置产生所需的损伤，而不会移动电极尖端。

    Left atrium ablation catheter
    3.
    发明授权
    Left atrium ablation catheter 失效
    左心房消融导管

    公开(公告)号：US06200315B1

    公开(公告)日：2001-03-13

    申请号：US08993211

    申请日：1997-12-18

    申请人： John W. Gaiser ,  Hong Li

    发明人： John W. Gaiser ,  Hong Li

    IPC分类号： A61B1739

    CPC分类号： A61B18/1492 ,  A61B18/1815 ,  A61B2017/003 ,  A61B2017/00867 ,  A61B2018/00577 ,  A61B2018/1253 ,  A61B2018/1467 ,  C08L2201/12

    摘要： A left atrium ablation catheter (4), including a sheath (8) and a deflectable electrophysiology catheter (10) housed within the sheath, is used to ablate coronary tissue at a target site within the left atrium (LA) of a heart. The electrophysiology catheter has ablation electrodes (24) along the tip (10). The ablation catheter is introduced into the right atrium (RA) through either the superior vena cava (SVC) or the inferior vena cava (IVC). The distal open end of the sheath is guided through a punctured hole in the interatrial septum and into the left atrium. The distal end (20) of the sheath is either precurved or is steerable so the electrode tip can be directed to the coronary target site in the left atrium. The electrode tip is sized and configured to create the desired lesion at the target site without movement of the electrode tip.

    摘要翻译： 包括护套（8）和容纳在护套内的可偏转电生理学导管（10）的左心房消融导管（4）用于在心脏的左心房（LA）内的靶位置消融冠状组织。 电生理学导管具有沿尖端（10）的消融电极（24）。 消融导管通过上腔静脉（SVC）或下腔静脉（IVC）引入右心房（RA）。 护套的远端开口端引导穿过房间隔中的穿刺孔并进入左心房。 鞘的远端（20）是预先的或是可操纵的，使得电极尖端可以被引导到左心房中的冠状动脉靶位点。 电极头的尺寸和构造可以在靶位置产生所需的损伤，而不会移动电极尖端。

    System and methods employing a bite block insert for positioning and stabilizing external instruments deployed within the body
    6.
    发明申请
    System and methods employing a bite block insert for positioning and stabilizing external instruments deployed within the body 审中-公开
    使用咬入块插入件来定位和稳定部署在体内的外部器械的系统和方法

    公开(公告)号：US20100217197A1

    公开(公告)日：2010-08-26

    申请号：US12799623

    申请日：2010-04-28

    申请人： Scott West ,  Utley S. David ,  John W. Gaiser

    发明人： Scott West ,  Utley S. David ,  John W. Gaiser

    IPC分类号： A61M25/02

    CPC分类号： A61B18/1485 ,  A61B1/00154 ,  A61M16/0493 ,  A61M25/02 ,  A61M29/02 ,  A61M2025/024 ,  Y10S128/06 ,  Y10S128/26

    摘要： Systems and methods are provided for positioning and stabilizing an external instrument during insertion of the instrument through the oral cavity (e.g., insertion of a catheter through the oral cavity and into the esophagus or cardia for treatment of gastroesophageal reflux disease (GERD)). The systems and methods provide a gripping tool for association with a bite block, capable of selectively moving between an open position in which the instrument may be inserted or removed, and a closed position in which the external instrument is held in a fixed position.

    摘要翻译： 提供了系统和方法，用于在将器械插入口腔（例如，将导管穿过口腔插入食管或贲门以治疗胃食管反流病（GERD））期间定位和稳定外部器械。 这些系统和方法提供了一种用于与咬合块相关联的夹持工具，其能够选择性地在可以插入或移除该器械的打开位置之间移动，以及将外部器械保持在固定位置的关闭位置。

    Multiple sensor, temperature controlled R-F ablation system
    10.
    发明授权
    Multiple sensor, temperature controlled R-F ablation system 失效
    多传感器，温度控制R-F消融系统

    公开(公告)号：US5957961A

    公开(公告)日：1999-09-28

    申请号：US5405

    申请日：1998-01-09

    申请人： Mark A. Maguire ,  Kevin C. Ladd ,  John W. Gaiser ,  Le T. Le

    发明人： Mark A. Maguire ,  Kevin C. Ladd ,  John W. Gaiser ,  Le T. Le

    IPC分类号： A61B5/042 ,  A61B17/00 ,  A61B18/00 ,  A61B18/14 ,  A61M25/01 ,  A61N1/08

    CPC分类号： A61M25/0138 ,  A61B18/1492 ,  A61B5/0422 ,  A61B5/6855 ,  A61B5/6857 ,  A61B5/6859 ,  A61M25/0147 ,  A61B2017/00101 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00654 ,  A61B2018/00702 ,  A61B2018/00761 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/00821 ,  A61B2018/00839 ,  A61B2018/00916 ,  A61B2018/1226 ,  A61B2018/124 ,  A61B2018/1273 ,  A61B2018/1861 ,  A61B2562/0209 ,  A61B2562/043 ,  A61M2025/015 ,  A61M2025/0161

    摘要： A catheter ablation system including a catheter having a distal segment carrying at least one electrode extending along the segment and having a number of temperature sensors arranged along the distal segment adjacent the electrode, each providing an output indicative of temperature. The catheter is coupled to a power source which provides R-F energy to the electrode and with temperature processing circuitry coupled to the temperature sensors and the power source which controls power output from the power source as a function of the outputs of the temperature sensors. In a preferred embodiment, the temperature processing circuitry includes circuitry for comparing the temperature indicated by the temperature sensors to a known reference sensor and circuitry for disabling subsequent use of an output of one of the sensors if the output from the sensor differs from the referenced temperature by more than a defined value. In an alternative preferred embodiment, the temperature processing circuitry includes circuitry responsive to the rate of change of the output of the temperature sensors and circuitry for disabling a sensor if the output of the sensor changes at a rate greater than a defined referenced rate of change.

    摘要翻译： 一种导管消融系统，其包括具有远端段的导管，所述远端段承载沿着所述段延伸的至少一个电极，并且具有沿着与所述电极相邻的远侧段布置的多个温度传感器，每个提供指示温度的输出。 导管耦合到电源，该电源为电极提供R-F能量，并且具有耦合到温度传感器的温度处理电路和控制从电源输出的功率作为温度传感器输出的功能的电源。 在优选实施例中，温度处理电路包括用于将由温度传感器指示的温度与已知参考传感器和用于如果传感器的输出与参考温度不同的随后使用传感器之一的输出的电路进行比较的电路 超过定义的值。 在替代的优选实施例中，温度处理电路包括响应于温度传感器的输出的变化速率和用于在传感器的输出以大于所定义的参考变化率的速率变化的情况下禁用传感器的电路的电路。