MORPHOLOGY BASED ISCHEMIA DETECTION USING INTRACARDIAC ELECTROGRAMS
    31.
    发明申请
    MORPHOLOGY BASED ISCHEMIA DETECTION USING INTRACARDIAC ELECTROGRAMS 审中-公开
    基于形态学的ISCHEMIA检测使用内皮细胞电泳

    公开(公告)号:US20110071413A1

    公开(公告)日:2011-03-24

    申请号:US12888900

    申请日:2010-09-23

    IPC分类号: A61B5/0452 A61N1/365

    CPC分类号: A61B5/04525 A61B5/0464

    摘要: An apparatus comprises an ambulatory cardiac signal sensing circuit configured to provide an electrical cardiac signal representative of cardiac activity of a subject and processor. The processor includes a feature module, a correlation module, and an ischemia detection module. The feature module is configured to identify a fiducial feature in the cardiac signal and locate one or more cardiac features in the cardiac signal using the fiducial feature. The correlation module is configured to calculate a measure of similarity of morphology for a segment of the cardiac signal that includes the cardiac features. The ischemia detection module is configured to detect a change in the measure of similarity and determine whether the detected change in the measure of similarity is indicative of ischemia.

    摘要翻译: 一种装置包括动态心脏信号感测电路,其被配置为提供代表对象和处理器的心脏活动的电心脏信号。 处理器包括特征模块,相关模块和缺血检测模块。 特征模块被配置为识别心脏信号中的基准特征并且使用基准特征来定位心脏信号中的一个或多个心脏特征。 相关模块被配置为计算包括心脏特征的心脏信号的片段的形态的相似度的度量。 缺血检测模块被配置为检测相似度测量的变化,并确定检测到的相似性测量的变化是否指示缺血。

    Systems and Methods for Ranking and Selection of Pacing Vectors
    32.
    发明申请
    Systems and Methods for Ranking and Selection of Pacing Vectors 有权
    用于起搏向量排序和选择的系统和方法

    公开(公告)号:US20110004264A1

    公开(公告)日:2011-01-06

    申请号:US12822487

    申请日:2010-06-24

    IPC分类号: A61N1/08

    摘要: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.

    摘要翻译: 描述了评估潜在的左心室(LV)起搏向量的方法。 执行早期消除测试以确定LV阴极的可行性。 基于早期消除测试,一些LV阴极被进一步测试消除。 确定为阴极的LV阴极被进一步测试。 测试可行的LV阴极电极的血液动力学效能。 然后测量包含可行的LV阴极电极和阳极电极的潜在LV起搏向量的心脏捕获和膈神经激活阈值。 潜在的LV起搏向量基于LV阴极的血液动力学功效,心脏捕获阈值和膈神经激活阈值中的一种或多种进行排名。

    Systems and methods for ranking and selection of pacing vectors
    34.
    发明授权
    Systems and methods for ranking and selection of pacing vectors 有权
    起搏向量的排序和选择的系统和方法

    公开(公告)号:US08886313B2

    公开(公告)日:2014-11-11

    申请号:US12822487

    申请日:2010-06-24

    摘要: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.

    摘要翻译: 描述了评估潜在的左心室(LV)起搏向量的方法。 执行早期消除测试以确定LV阴极的可行性。 基于早期消除测试,一些LV阴极被进一步测试消除。 确定为阴极的LV阴极被进一步测试。 测试可行的LV阴极电极的血液动力学效能。 然后测量包含可行的LV阴极电极和阳极电极的潜在LV起搏向量的心脏捕获和膈神经激活阈值。 潜在的LV起搏向量基于LV阴极的血液动力学功效,心脏捕获阈值和膈神经激活阈值中的一种或多种进行排名。