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141 条记录 (耗时 0.031 秒)

    Monitoring, Managing and/or Protecting System and Method for Non-Targeted Tissue
    41.
    发明申请
    Monitoring, Managing and/or Protecting System and Method for Non-Targeted Tissue 有权
    非目标组织的监测，管理和/或保护系统和方法

    公开(公告)号：US20110276046A1

    公开(公告)日：2011-11-10

    申请号：US13101755

    申请日：2011-05-05

    申请人： Reed R. Heimbecher ,  Saurav Paul ,  John M. Berns ,  Jeffrey A. Schweitzer

    发明人： Reed R. Heimbecher ,  Saurav Paul ,  John M. Berns ,  Jeffrey A. Schweitzer

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1492 ,  A61B18/18 ,  A61B34/30 ,  A61B90/04 ,  A61B2018/0022 ,  A61B2018/00285 ,  A61B2018/00642 ,  A61B2018/00696 ,  A61B2018/00714 ,  A61B2018/00779 ,  A61B2018/00869 ,  A61B2018/00875 ,  A61B2018/00898 ,  A61B2018/00904 ,  A61B2034/301

    摘要： A monitoring, managing and protecting system is provided that includes a monitoring probe working in conjunction with an ablating device. The probe is configured to be positioned in close proximity to a region of non-targeted tissue proximate an ablation site of targeted tissue and to be operatively connected to an electrical response assessment system or component. The probe includes an elongate shaft having proximal and distal ends, with a handle disposed at the proximal end thereof and a tissue monitoring and protecting apparatus disposed at the distal end thereof. The ablating device includes an elongate shaft having proximal and distal ends, with a handle mounted at the proximal end thereof and an ablation element mounted at the distal end thereof. The monitoring probe measures electrical characteristics of the non-targeted tissue and/or of the tissue between the monitoring electrode and the ablation electrode. The electrical response assessment system determines whether the tissue is being damaged based on the electrical measurements. The monitoring, managing and protecting system can notify a practitioner based on the determination, or modify or stop the ablation procedure.

    摘要翻译： 提供了一个监测，管理和保护系统，其中包括与消融装置一起工作的监测探头。 探针被配置为定位成紧邻目标组织的消融部位附近的非目标组织的区域并且可操作地连接到电响应评估系统或部件。 探针包括具有近端和远端的细长轴，其近端处设有手柄，以及设置在其远端处的组织监测和保护装置。 该烧蚀装置包括具有近端和远端的细长轴，其手柄安装在其近端处，并且消融元件安装在其远端处。 监测探针测量监测电极和消融电极之间的非目标组织和/或组织的电特性。 电响应评估系统基于电测量确定组织是否被损坏。 监测，管理和保护系统可以根据确定或修改或停止消融程序通知医生。

    Acoustic coupling for assessment and ablation procedures
    43.
    发明申请
    Acoustic coupling for assessment and ablation procedures 有权
    用于评估和消融程序的声耦合

    公开(公告)号：US20110160584A1

    公开(公告)日：2011-06-30

    申请号：US12979475

    申请日：2010-12-28

    申请人： Saurav Paul ,  Troy T. Tegg ,  Reed R. Heimbecher

    发明人： Saurav Paul ,  Troy T. Tegg ,  Reed R. Heimbecher

    IPC分类号： A61B8/14 ,  A61N7/00

    CPC分类号： A61N7/022 ,  A61B8/0883 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4494 ,  A61B2017/00106

    摘要： Acoustic coupling systems and methods are disclosed as these can be used for assessment and ablation procedures. An exemplary acoustic assessment system for a catheter may comprise a flexible catheter shaft. At least one acoustic transducer is positioned in the flexible catheter shaft. The at least one acoustic transducer emits a generated acoustic signal for reflection by adjacent tissue. The at least one acoustic transducer receives a reflected acoustic signal from the adjacent tissue and generates electrical signals corresponding to one or more property of the tissue. An output device is electrically connected to the at least one acoustic transducer. The output device receives the electrical signals and generate output for a user for assessing the tissue.

    摘要翻译： 公开了声耦合系统和方法，因为这些系统和方法可用于评估和消融程序。 用于导管的示例性声学评估系统可以包括柔性导管轴。 至少一个声换能器被定位在柔性导管轴中。 所述至少一个声换能器发射产生的声信号以供相邻组织反射。 所述至少一个声换能器接收来自相邻组织的反射声信号，并产生对应于组织的一个或多个属性的电信号。 输出装置电连接到至少一个声换能器。 输出设备接收电信号并产生用于用户评估组织的输出。

    Contact-sensitive pressure-sensitive conductive composite electrode and method for ablation
    45.
    发明授权
    Contact-sensitive pressure-sensitive conductive composite electrode and method for ablation 有权
    接触敏感的压敏导电复合电极及其消融方法

    公开(公告)号：US07883508B2

    公开(公告)日：2011-02-08

    申请号：US11647294

    申请日：2006-12-29

    申请人： Chou Thao ,  Saurav Paul ,  Kedar Ravindra Belhe ,  Hong Cao

    发明人： Chou Thao ,  Saurav Paul ,  Kedar Ravindra Belhe ,  Hong Cao

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1492 ,  A61B2018/00577 ,  A61B2018/00702 ,  A61B2090/064

    摘要： A catheter assembly for pressure-sensitive control of ablation treatment is disclosed. The assembly includes a conductive element, an electrode, and a pressure sensitive conductive composite member positioned between the conductive element and the electrode. At least one of the conductive pin, the pressure sensitive conductive composite element and the ablation electrode are moveable to create an engagement position and a non-engagement position. In the engagement position, the elements are electrically coupled such that ablation energy may be delivered from the conductive pin to the ablation electrode via the pressure sensitive conductive composite element. In the non-engagement position, the elements are electrically decoupled such that ablation energy is not delivered to the ablation electrode. A related method for pressure-sensitive control of ablation is also disclosed.

    摘要翻译： 公开了一种用于消融治疗的压敏控制的导管组件。 组件包括导电元件，电极和位于导电元件和电极之间的压敏导电复合元件。 导电针，压敏导电复合元件和消融电极中的至少一个可移动以产生接合位置和非接合位置。 在接合位置，元件被电耦合，使得消融能量可以经由压敏导电复合元件从导电引脚传送到消融电极。 在非接合位置，元件被电去耦合，使得消融能量不被输送到消融电极。 还公开了一种用于消融的压敏控制的相关方法。

    Assessment of electrode coupling for tissue ablation
    46.
    发明申请
    Assessment of electrode coupling for tissue ablation 有权

    公开(公告)号：US20100286690A1

    公开(公告)日：2010-11-11

    申请号：US12095685

    申请日：2006-12-06

    申请人： Saurav Paul ,  Hong Cao ,  Chou Thao

    发明人： Saurav Paul ,  Hong Cao ,  Chou Thao

    IPC分类号： A61B18/14

    CPC分类号： A61N1/40 ,  A61B2018/00357 ,  A61B2018/00875

    摘要： An electrode catheter and a method for assessing electrode-tissue contact and coupling are disclosed. An exemplary electrode catheter comprises an electrode adapted to apply electrical energy. A measurement circuit is adapted to measure impedance between the electrode and ground as the electrode approaches a target tissue. A processor determines a contact and coupling condition for the target tissue based at least in part on reactance of the impedance measured by the measurement circuit. In another exemplary embodiment, the electrode catheter determines the contact and coupling condition based at least in part on a phase angle of the impedance.

    ADJUSTABLE LENGTH FLEXIBLE POLYMER ELECTRODE CATHETER AND METHOD FOR ABLATION
    47.
    发明申请
    ADJUSTABLE LENGTH FLEXIBLE POLYMER ELECTRODE CATHETER AND METHOD FOR ABLATION 有权
    可调节长度柔性聚合物电极导体和方法

    公开(公告)号：US20090171349A1

    公开(公告)日：2009-07-02

    申请号：US12347097

    申请日：2008-12-31

    申请人： Israel A. Byrd ,  Saurav Paul ,  Claire T. Edlebeck ,  Riki C. Thao

    发明人： Israel A. Byrd ,  Saurav Paul ,  Claire T. Edlebeck ,  Riki C. Thao

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B18/1815

    摘要： An ablation catheter includes a flexible elongated shaft having a flexible electrode at its distal end. The flexible electrode includes an inner, flexible, electrically-conductive element and an outer, flexible, electrically-conductive polymer layer in electrical contact with the inner, flexible, electrically-conductive element. The catheter further includes an electrically insulative sheath surrounding at least a portion of the flexible electrode and a linear displacement mechanism capable of adjusting at least one of the electrically insulative sheath and the flexible electrode to vary a length of the flexible electrode exposed at the distal end of the shaft. Also disclosed is an adjustable length ablation electrode and methods of ablating tissue.

    摘要翻译： 消融导管包括在其远端具有柔性电极的柔性细长轴。 柔性电极包括内部柔性导电元件和与内部柔性导电元件电接触的外部柔性导电聚合物层。 所述导管还包括围绕所述柔性电极的至少一部分的电绝缘护套和能够调节所述电绝缘护套和所述柔性电极中的至少一个的线性位移机构，以改变在所述远端暴露的所述柔性电极的长度 的轴。 还公开了可调节长度的消融电极和消融组织的方法。

    Systems and Methods for Electrode Contact Assessment
    49.
    发明申请
    Systems and Methods for Electrode Contact Assessment 有权
    电极接触评估系统与方法

    公开(公告)号：US20080275442A1

    公开(公告)日：2008-11-06

    申请号：US12091151

    申请日：2006-10-27

    申请人： Saurav Paul ,  Troy T. Tegg ,  Chou Thao ,  Hong Cao ,  Harry Puryear ,  Fos Kuehn ,  Reed R. Heimbecher

    发明人： Saurav Paul ,  Troy T. Tegg ,  Chou Thao ,  Hong Cao ,  Harry Puryear ,  Fos Kuehn ,  Reed R. Heimbecher

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B5/6852 ,  A61B5/6885 ,  A61B2090/065

    摘要： Systems and methods are disclosed for assessing electrode-tissue contact for tissue ablation. An exemplary electrode contact sensing system comprises an electrode 10 housed within a distal portion of a catheter shaft 14. At least one electromechanical sensor 20 is operatively associated with the electrode 10 within the catheter shaft 14. The at least one electromechanical sensor 20 is responsive to movement of the electrode 10 by generating electrical signals corresponding to the amount of movement. The system may also include an output device electrically connected to the at least one electromechanical sensor 20. The output device receives the electrical signals for assessing a level of contact between the electrode 10 and a tissue 12.

    摘要翻译： 公开了用于评估用于组织消融的电极组织接触的系统和方法。 示例性电极接触感测系统包括容纳在导管轴14的远端部分内的电极10。 至少一个机电传感器20与导管轴14内的电极10可操作地相关联。 至少一个机电传感器20通过产生对应于移动量的电信号来响应电极10的运动。 该系统还可以包括电连接到至少一个机电传感器20的输出装置。 输出装置接收用于评估电极10和组织12之间的接触水平的电信号。