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61. 发明申请

US20080188764A1 METHOD AND APPARATUS FOR ATRIAL FIBRILLATION DETECTION BASED ON VENTRICULAR CYCLE LENGTHS 有权
标题翻译：基于静脉循环长度的ATRIAL FIBRILLATION检测方法与装置
公开(公告)号：US20080188764A1
公开(公告)日：2008-08-07
申请号：US11554275
申请日：2006-10-30
申请人： Brian B. Lee , Eric J. Panken
发明人： Brian B. Lee , Eric J. Panken
IPC分类号： A61B5/04
CPC分类号： A61B5/046 , A61B5/02405 , A61N1/3621 , A61N1/3925 , A61N1/395
摘要： A method and apparatus for detecting atrial arrhythmias include acquiring a cardiac signal comprising R-waves. Differences between pairs of consecutive R-R intervals occurring during a first time interval are computed from the cardiac signal. An atrial arrhythmia is detected subsequent to the first time interval in response to the computed differences. Storage of the cardiac signal is triggered in response to the atrial arrhythmia detection.
摘要翻译：用于检测心房心律失常的方法和装置包括获取包括R波的心脏信号。从心脏信号计算在第一时间间隔期间发生的连续R-R间隔对之间的差异。响应于所计算的差异，在第一时间间隔之后检测心房心律失常。响应于心房心律失常检测触发心脏信号的存储。

62. 发明授权

US06505067B1 System and method for deriving a virtual ECG or EGM signal 有权
标题翻译：用于导出虚拟ECG或EGM信号的系统和方法
公开(公告)号：US06505067B1
公开(公告)日：2003-01-07
申请号：US09721275
申请日：2000-11-22
申请人： Brian B. Lee , Eric J. Panken , James D. Reinke
发明人： Brian B. Lee , Eric J. Panken , James D. Reinke
IPC分类号： A61B50402
CPC分类号： A61B5/04011 , A61B5/0402 , G06F19/00
摘要： A system and method for obtaining a virtual physiologic voltage signal between a first predetermined point in a second selected point in the body is disclosed. At least three electrodes are used to measure two voltage signals S1 and S2 in a body. In one embodiment, the signal S1 is measured between a first electrode and a common electrode, and the signal S2 is measured between a second electrode and the common electrode. A selected point within the body may be chosen to define a pair of virtual electrodes existing between this selected point and the common electrode. An approximation of the voltage signal S as could be measured between electrodes positioned at these virtual electrode locations may be derived as a function of S1, S2, and &thgr;, wherein &thgr; is the angle between the directional vector U1 for the signal S1 and the directional vector U for the signal S. According to the inventive system and method, the signal value for S is also dependent on the distances between the electrode pairs, on the angle &bgr; between directional vectors U1 and U2, and on the distance between the virtual electrodes. The current invention may be utilized with electrodes that are positioned either externally on the surface of, or implanted within, a body. According to one aspect of the invention, a user may employ a user interface to select the values of &thgr;, &bgr;, and the electrode spacings. Alternatively, ones of these parameters may be predetermined by the system. In another embodiment, the system could derive the signal S over a predetermined range of values for the angle &thgr;. The system may then select the angle of &thgr; resulting in the derived signal S that exhibits a desired waveform morphology.
摘要翻译：公开了一种用于在身体的第二选定点中的第一预定点之间获得虚拟生理电压信号的系统和方法。使用至少三个电极来测量身体中的两个电压信号S1和S2。在一个实施例中，在第一电极和公共电极之间测量信号S1，并且在第二电极和公共电极之间测量信号S2。可以选择体内的选定点以限定存在于该选定点和公共电极之间的一对虚拟电极。可以在位于这些虚拟电极位置的电极之间测量的电压信号S的近似作为S1，S2和θ的函数导出，其中θ是信号S1的方向矢量U1与方向信号S的矢量U根据本发明的系统和方法，S的信号值也取决于在方向矢量U1和U2之间的角度β上的电极对之间的距离，以及虚拟电极之间的距离。本发明可以与位于体外表面或植入体内的电极一起使用。根据本发明的一个方面，用户可以使用用户界面来选择θ，β和电极间距的值。或者，这些参数中的一个可以由系统预先确定。在另一个实施例中，系统可以在角度θ的预定值范围内导出信号S. 然后，系统可以选择θ的角度，导致出现所需波形形态的导出信号S.

63. 发明授权

US5730142A Method and apparatus for detecting tachycardia 失效
标题翻译：检测心动过速的方法和装置
公开(公告)号：US5730142A
公开(公告)日：1998-03-24
申请号：US821486
申请日：1997-03-21
申请人： Weimin Sun , Eric J. Panken , William J. Combs
发明人： Weimin Sun , Eric J. Panken , William J. Combs
IPC分类号： A61B5/042 , A61B5/0464
CPC分类号： A61B5/726 , A61B5/0422 , A61B5/0464 , A61B5/7203 , A61B5/7267 , A61B5/7225
摘要： A method and apparatus for detecting tachycardia in a patient employs a digitally-sampled electrocardiographic signal input to a digital processor employing a Hidden Markov Modeling algorithm to eliminate confusion between far-field and near-field cardiac events to provide a more accurate measurement of cardiac rate for diagnosis and treatment.
摘要翻译：用于检测患者心动过速的方法和装置采用采用隐马尔可夫建模算法的数字采样心电图信号输入到数字处理器，以消除远场和近场心脏事件之间的混淆，从而提供心率更准确的测量用于诊断和治疗。

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