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    • 1. 发明授权
    • Cardioversion energy reduction system
    • 心律转换能量减少系统
    • US5836976A
    • 1998-11-17
    • US846747
    • 1997-04-30
    • Xiaoyi MinLi WangRahul MehraPaul J. DeGrootWalter H. OlsonLuc R. MongeonMichael R. S. Hill
    • Xiaoyi MinLi WangRahul MehraPaul J. DeGrootWalter H. OlsonLuc R. MongeonMichael R. S. Hill
    • A61N1/39
    • A61N1/3956A61N1/3925A61N1/3987
    • In an implantable pacemaker/cardioverter/defibrillator, a system for correlating the delivery of a cardioversion therapy to an optimum point or phase of the respiratory cycle of the patient to effect delivery of the therapy when the impedance between the cardioversion electrodes is minimized. In a first application for use with cardioversion electrodes located substantially in contact with the heart chamber, the optimum point or phase is at the end of inspiration. In a second application for use with at least one cardioversion electrode located remotely from the heart chamber, the optimum point or phase is at end expiration or beginning of inspiration. The cardioversion therapy is delivered in synchrony with a ventricular sense event, if present. If the optimum point or phase of the respiratory cycle cannot be determined during a therapy time, a pre-shock may be delivered to elicit a respiration cycle through a stimulated contraction of the diaphragm.
    • 在植入式心脏起搏器/心律转复除颤器中,用于将心脏复律治疗的输送与患者呼吸周期的最佳点或阶段相关联的系统,以在心脏复律电极之间的阻抗最小化时实现治疗的传递。 在与基本上与心脏腔室接触的心脏复律电极一起使用的第一个应用中,最佳点或阶段在吸气结束时。 在与远离心脏室的位置的至少一个心脏复律电极一起使用的第二个应用中,最佳点或阶段是结束期满或开始吸气。 复发疗法与心室感觉事件(如果存在)同步传递。 如果在治疗时间内不能确定呼吸周期的最佳点或相位,则可以传送预休克以通过振膜的刺激收缩引起呼吸循环。
    • 5. 发明授权
    • Prioritized rule based method and apparatus for diagnosis and treatment of arrhythmias
    • 用于诊断和治疗心律失常的优先规则方法和装置
    • US06178350B1
    • 2001-01-23
    • US09487189
    • 2000-01-19
    • Walter H. OlsonJeffrey M. Gillberg
    • Walter H. OlsonJeffrey M. Gillberg
    • A61N1362
    • A61N1/3622A61B5/042A61B5/046A61B5/0464A61B5/7264
    • An implantable anti-tachyarrhythmia device which delivers anti-tachyarrhythmia therapies to a patient's heart in response to detection of tachyarrhythmias. The device defines first criteria indicating the presence of atrial tachycardia and second criteria indicating the presence of atrial fibrillation, and compares the time elapsed since the either the first or second criteria were initially met to a defined time duration. In response to the defined duration having passed and either of the first or second criteria being met, the device triggers delivery of an appropriate anti-tachyarrhythmia therapy. The timer is reset on detection of termination of atrial tachyarrhythmia, but not on failure of the first and second criteria to be met. The first and second criteria are defined such that they can not be concurrently met.
    • 一种可植入的抗快速性心律失常装置,其响应于快速性心律失常的检测而向患者的心脏递送抗快速性心律失常疗法。 该装置定义了指示心房心动过速存在的第一标准和指示心房纤维性颤动的存在的第二标准,并且比较了从第一或第二标准开始满足到限定的持续时间之后经过的时间。 响应于已经通过的限定的持续时间并满足第一或第二标准中的任一个,该装置触发适当的抗快速性心律失常治疗的递送。 在检测到心房性心律失常终止时,定时器复位,但不符合第一和第二标准的失败。 第一和第二个标准被定义为不能同时满足。
    • 10. 发明授权
    • Method and apparatus for predicting recurring ventricular arrhythmias
    • 用于预测复发性室性心律失常的方法和装置
    • US06922585B2
    • 2005-07-26
    • US10117465
    • 2002-04-05
    • Xiaohong ZhouVinod SharmaWalter H. Olson
    • Xiaohong ZhouVinod SharmaWalter H. Olson
    • A61B5/0452A61B5/0402A61B5/046A61B5/0464A61N1/362A61N1/37A61N1/39
    • A61B5/4035A61B5/046A61B5/0464A61N1/3622A61N1/3962
    • An implantable medical device and method are provided for assessing autonomic tone and risk factors associated with arrhythmias and, based on this assessment, an early recurrence of ventricular tachycardia or ventricular fibrillation is predicted. Specifically, changes in R—R interval, heart rate variability, patient activity, and myocardial ischemia are measured prior to and after a detected an arrhythmia episode. A recurrence score is calculated as a weighted sum of measured parameters and compared to a prediction criterion. The prediction criterion may be a preset threshold score or an individualized episode template based on previously calculated recurrence scores associated with recurring episodes. Stored parameters and episode-related data may be downloaded for offline analyses for optimizing prediction criteria and monitoring patient status.
    • 提供了一种用于评估与心律失常相关的自主神经和风险因素的可植入医疗装置和方法,并且基于该评估,预测了室性心动过速或心室颤动的早期复发。 具体地,在检测到心律失常发作之前和之后测量R-R间期,心率变异性,患者活动和心肌缺血的变化。 计算复发得分作为测量参数的加权和并与预测标准进行比较。 预测标准可以是基于先前计算的与重复发作相关联的复发评分的预设阈值评分或个体化发作模板。 可以下载存储的参数和与剧集相关的数据用于离线分析,以优化预测标准和监测患者状态。