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    Detection of microbubble formation during catheter ablation
    6.
    发明授权
    Detection of microbubble formation during catheter ablation 有权
    导管消融期间微泡形成的检测

    公开(公告)号：US09216050B2

    公开(公告)日：2015-12-22

    申请号：US13460864

    申请日：2012-05-01

    申请人： Catherine R. Condie ,  Marshall L. Sherman ,  Mark T. Stewart

    发明人： Catherine R. Condie ,  Marshall L. Sherman ,  Mark T. Stewart

    IPC分类号： A61B18/12 ,  A61B18/00 ,  A61B18/14

    CPC分类号： A61B18/1206 ,  A61B18/1492 ,  A61B2018/00267 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00666 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00708 ,  A61B2018/00779 ,  A61B2018/00875 ,  A61B2018/00898

    摘要： A method and system for detecting microbubble formation during a radiofrequency ablation procedure. The method includes measuring an impedance of a pair of electrodes, at least one electrode in the pair of electrodes being coupled to a treatment assembly of a medical device. Radiofrequency ablation energy is transmitted between the pair of electrodes. The transmission of radiofrequency ablation energy between the pair of electrodes is terminated when after a predetermined period of time the measured impedance in either of the electrodes in the pair of electrodes is a predetermined percentage above a measured minimum impedance and a measured power is above a predetermined power threshold. An alert is generated indicating at least one of the formation and release of microbubbles proximate the pair of electrodes.

    摘要翻译： 一种用于在射频消融过程中检测微泡形成的方法和系统。 该方法包括测量一对电极的阻抗，该对电极中的至少一个电极耦合到医疗装置的治疗组件。 射频消融能量在一对电极之间传输。 在一对电极之间的射频消融能量的传输终止，在预定时间段之后，该对电极中的任一个电极中的测量阻抗比测量的最小阻抗高出预定百分比，并且测量的功率高于预定的时间 功率阈值。 产生警报，指示邻近该对电极的微泡的形成和释放中的至少一个。

    Reactance changes to identify and evaluate cryo ablation lesions
    9.
    发明授权
    Reactance changes to identify and evaluate cryo ablation lesions 有权
    反应变化以识别和评估低温消融病变

    公开(公告)号：US09039687B2

    公开(公告)日：2015-05-26

    申请号：US12914782

    申请日：2010-10-28

    申请人： Catherine R. Condie ,  Kathryn Elaine Kasischke ,  Marshall L. Sherman

    发明人： Catherine R. Condie ,  Kathryn Elaine Kasischke ,  Marshall L. Sherman

    IPC分类号： A61B18/08 ,  A61B5/053 ,  A61B17/00 ,  A61B18/00 ,  A61B18/02 ,  A61B18/14

    CPC分类号： A61B5/0538 ,  A61B2017/00026 ,  A61B2018/00755 ,  A61B2018/0262 ,  A61B2018/1407 ,  A61B2018/1467

    摘要： A method of assessing lesion quality of an ablated tissue region comprising ablating at least a portion of the tissue region. The reactance of the ablated tissue region is measured at a plurality of frequencies. The lesion quality of the ablated tissue region is determined based on the measured reactance. For example, an untreated tissue reactance value and a predetermined thermally treated tissue region reactance threshold may be determined. The measured reactance at each of the plurality of frequencies is compared to the threshold to determine the lesion quality of the thermally treated tissue region. The thermal treatment of the tissue may be modified based on the lesion quality determination.

    摘要翻译： 一种评估消融组织区域的损伤质量的方法，包括烧蚀组织区域的至少一部分。 在多个频率处测量消融的组织区域的电抗。 基于测得的电抗确定烧伤组织区域的损伤质量。 例如，可以确定未处理的组织电抗值和预定的热处理的组织区域电抗阈值。 将多个频率中的每一个处的测得的电抗与阈值进行比较，以确定热处理的组织区域的损伤质量。 可以基于病变质量测定来修改组织的热处理。

    System and method of using AV conduction timing
    10.
    发明授权
    System and method of using AV conduction timing 有权
    使用AV导通定时的系统和方法

    公开(公告)号：US08229560B2

    公开(公告)日：2012-07-24

    申请号：US13078536

    申请日：2011-04-01

    申请人： Catherine R. Condie

    发明人： Catherine R. Condie

    IPC分类号： A61N1/362

    CPC分类号： A61N1/368 ,  A61B5/0468 ,  A61N1/3682

    摘要： In an implantable medical device that provides atrial and ventricular pacing in an atrial-based pacing mode, longer periods of time are permitted for intrinsic AV conduction to occur. By monitoring the patient's AV delay under these circumstances, useful information is obtained that can be correlated to other patient conditions or symptoms.

    摘要翻译： 在以心房起搏模式提供心房和心室起搏的植入式医疗装置中，允许发生固有AV传导的较长时间段。 通过在这些情况下监测患者的AV延迟，获得可以与其他患者状况或症状相关的有用信息。