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公开(公告)号:US08204581B2
公开(公告)日:2012-06-19
申请号:US12340772
申请日:2008-12-22
申请人: Baharan Kamousi , Bryant Lin , Paul J Wang
发明人: Baharan Kamousi , Bryant Lin , Paul J Wang
CPC分类号: A61B5/0464 , A61N1/3925 , A61N1/3956
摘要: Techniques for discrimination of heart rhythms in cardiac rhythm management devices include determining a current covariance matrix of multiple electrograms measuring each current heart beat, determining a distance measure between the current covariance matrix and a predetermined covariance matrix of the multiple electrograms measuring at least one different heart beat; and determining whether the heart beat represents ventricular tachycardia based on the distance measure.
摘要翻译: 在心律管理装置中用于区分心律的技术包括确定测量每个当前心跳的多个电图的当前协方差矩阵,确定当前协方差矩阵与测量至少一个不同心脏的多个电描记图的预定协方差矩阵之间的距离度量 击败; 并且基于距离测量来确定心跳是否表示心室性心动过速。
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公开(公告)号:US08882762B2
公开(公告)日:2014-11-11
申请号:US13512493
申请日:2010-11-30
申请人: Paul J Wang , Amin Al-Ahmad , William Francis Johnston , Kai Ihnken , Kaartiga Sivanesan , Morgan Clyburn , Kathleen Lee Kang , Lauren Shui Sum Chan , Robert C Robbins , Friedrich B. Prinz
发明人: Paul J Wang , Amin Al-Ahmad , William Francis Johnston , Kai Ihnken , Kaartiga Sivanesan , Morgan Clyburn , Kathleen Lee Kang , Lauren Shui Sum Chan , Robert C Robbins , Friedrich B. Prinz
CPC分类号: A61B18/1492 , A61B18/14 , A61B34/73 , A61B2017/00876 , A61B2018/00005 , A61B2018/00291 , A61B2018/00363 , A61B2018/00577
摘要: A transmural ablation device is provided to achieve endocardial and epicardial ablation at the same site but directed from the inner and outer surfaces of the heart to create a transmural lesion. By ablating from both sides of the heart tissue, it is possible to increase the depth of the lesion created and to increase the likelihood of a transmural lesion. Embodiments pertain to techniques to align the endocardial and epicardial ablation elements and techniques to position and move the endocardial and epicardial ablation elements along a predefined linear, curvilinear, or circular path. The ability to bring the epicardial and endocardial elements more closely or firmly with the underlying tissue is important in creating optimal lesions. Magnetic force attracts the epicardial and endocardial elements.
摘要翻译: 提供透壁消融装置以在相同部位实现心内膜和心外膜消融,但是从心脏的内表面和外表面引导以产生透壁病变。 通过从心脏组织的两侧烧蚀,可以增加所产生的损伤的深度并增加透壁病变的可能性。 实施例涉及用于对准心内膜和心外膜消融元件和技术以沿着预定义的线性,曲线或圆形路径定位和移动心内膜和心外膜消融元件的技术。 使心外膜和心内膜元件与下面的组织更紧密或更牢固的能力对于创建最佳损伤是重要的。 磁力吸引心外膜和心内膜元件。
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