公开(公告)号：US07233821B2

公开(公告)日：2007-06-19

申请号：US11097706

申请日：2005-03-31

申请人： Douglas A. Hettrick ,  David E. Euler

发明人： Douglas A. Hettrick ,  David E. Euler

IPC分类号： A61B5/02 ,  A61B5/04 ,  A61N1/00

CPC分类号： A61N1/3627 ,  A61B8/0858 ,  A61N1/36528 ,  A61N1/3684

摘要： A method of evaluating ventricular performance of a heart employing sensors to measure a ventricular dimension signal and deriving indices of ventricular performance therefrom. Premature Shortening (PS) and Isovolumic Lengthening (IL) comprise two indices of ventricular performance determined from analysis of the left ventricular dimension signal during the transition from ventricular filling to ventricular ejection. Measured values of PS and IL are compared to other measured values or reference values to determine if ventricular performance has improved (or worsened). In some embodiments, the dimension sensors may comprise piezoelectric sonomicrometer crystals that operate as ultrasound transmitters and receivers. The sensors may be mounted in relation to a ventricle of the heart either temporarily or permanently, and may be configured either separately from or integrally with cardiac pacing leads.

摘要翻译： 评估使用传感器测量心室尺寸信号并从其导出心室性能指数的心脏心室性能的方法。 过早缩短（PS）和等压延长（IL）包括从心室充填到心室射血的过渡期间从左心室尺寸信号的分析确定的两个心室指数指数。 将PS和IL的测量值与其他测量值或参考值进行比较，以确定心室性能是否改善（或恶化）。 在一些实施例中，尺寸传感器可以包括作为超声波发射器和接收器操作的压电经济测量晶体。 传感器可以相对于心脏的心室临时或永久地安装，并且可以与心脏起搏引线分开地或与心脏起搏引线一体地配置。

公开(公告)号：US06735471B2

公开(公告)日：2004-05-11

申请号：US09964308

申请日：2001-09-26

申请人： Michael R. S. Hill ,  Scott E. Jahns ,  James R. Keogh ,  David E. Euler ,  Michael R. Ujhelyi ,  Nancy J. Rakow ,  Michael A. Colson

发明人： Michael R. S. Hill ,  Scott E. Jahns ,  James R. Keogh ,  David E. Euler ,  Michael R. Ujhelyi ,  Nancy J. Rakow ,  Michael A. Colson

IPC分类号： A61N1362

CPC分类号： A61N1/0517 ,  A61M5/14276 ,  A61N1/0519 ,  A61N1/0556 ,  A61N1/056 ,  A61N1/36007 ,  A61N1/3601 ,  A61N1/36114 ,  A61N1/362 ,  A61N1/385 ,  A61N1/39

摘要： A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.

摘要翻译： 提供了一种执行诸如手术的医疗程序的方法。 刺激神经以将心脏的跳动调节到第一状态，例如停止或减缓的状态。 医疗程序在心脏或另一个器官上进行。 停止对神经的刺激，以便将心脏的跳动调节到第二状态，例如打浆状态。 心脏本身也可能被刺激到跳动状态，例如通过起搏。 可以继续刺激神经以允许继续医疗程序。 还提供用于执行医疗程序的系统和设备。