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    Dual-mode apparatus and method for detection of embolic device detachment
    1.
    发明授权
    Dual-mode apparatus and method for detection of embolic device detachment 有权
    用于检测栓塞装置脱离的双模式装置和方法

    公开(公告)号：US06397850B1

    公开(公告)日：2002-06-04

    申请号：US09501340

    申请日：2000-02-09

    申请人： Ronald W. Scheldrup ,  Jason E. Kalgreen ,  Mehran Bashiri

    发明人： Ronald W. Scheldrup ,  Jason E. Kalgreen ,  Mehran Bashiri

    IPC分类号： A61M2900

    CPC分类号： A61B17/12022 ,  A61B17/12113 ,  A61B17/12145 ,  A61B2017/00022 ,  A61B2017/00026 ,  A61B2017/12063

    摘要： An apparatus and method are disclosed for accurately detecting the detachment of both electrically conductive and non-conductive implants which have been introduced to and are intended to remain at a desired therapeutic site. The detachment detection apparatus may include a conductive or an electrically-isolated implant, such as a vasoocclusive coil, connected to a wire by an electrolytically severable joint. The detachment assembly further includes a power supply having a direct current drive circuit for supplying a direct current to the joint, an alternating current drive circuit for independently supplying an alternating current to the joint, and an alternating current monitoring circuit for monitoring an alternating current level of the alternating current supplied to the joint. The detection assembly includes a central processing unit for selecting a first mode and a second mode for determining a detachment threshold level indicating detachment of the implant. Additionally, a direct current monitoring circuit is provided for measuring a direct current impedance level of the direct current supplied to the joint wherein a percentage increase in the direct current impedance level indicates detachment of the implant if the alternating current level is greater than the detachment threshold level.

    摘要翻译： 公开了一种用于精确地检测导入和预期保留在期望的治疗部位的导电植入物和非导电植入物的脱离的装置和方法。 分离检测装置可以包括导电或电隔离的植入物，例如血管闭塞线圈，其通过电解可分离的关节连接到线。 分离组件还包括具有用于向接头提供直流电流的直流驱动电路的电源，用于向接头独立提供交流电的交流驱动电路，以及用于监控交流电平的交流监视电路 提供给接头的交流电。 检测组件包括用于选择第一模式的中央处理单元和用于确定指示植入物脱离的脱离阈值水平的第二模式。 此外，提供直流监测电路用于测量提供给接头的直流电流的直流阻抗水平，其中如果交流电流大于分离阈值，则直流阻抗水平的百分比增加指示植入物的分离 水平。

    Methods and devices for improving mitral valve function
    5.
    发明授权
    Methods and devices for improving mitral valve function 有权
    改善二尖瓣功能的方法和装置

    公开(公告)号：US06723038B1

    公开(公告)日：2004-04-20

    申请号：US09680435

    申请日：2000-10-06

    申请人： Richard F. Schroeder ,  Robert M. Vidlund ,  Jason E. Kalgreen ,  Cyril J. Schweich, Jr. ,  Todd J. Mortler

    发明人： Richard F. Schroeder ,  Robert M. Vidlund ,  Jason E. Kalgreen ,  Cyril J. Schweich, Jr. ,  Todd J. Mortler

    IPC分类号： A61M112

    CPC分类号： A61F2/2487 ,  A61B17/00234 ,  A61B17/1227 ,  A61B2017/00243 ,  A61B2017/0404 ,  A61B2017/048 ,  A61B2017/0496 ,  A61F2/2481

    摘要： Devices and related methods for treating heart conditions, including, for example, dilatation, valve incompetencies, including mitral valve leakage, and other heart failure conditions, may operate to assist in the apposition of heart valve leaflets to improve valve function. A method for improving the function of a valve of a heart includes placing an elongate member transverse a heart chamber so that each end of the elongate member extends through a wall of the heart, and placing first and second anchoring members external the chamber. The first and second anchoring members are attached to first and second ends of the elongate member to fix the elongate member in a position across the chamber so as to reposition papillary muscles within the chamber. A method of treating the valve may include real-time monitoring the valve function and adjusting the device based on data obtained during the real-time monitoring.

    摘要翻译： 用于治疗心脏病症的装置和相关方法，包括例如扩张，瓣膜无能力，包括二尖瓣渗漏和其他心力衰竭病症，可以用于协助心脏瓣膜小叶的安置以改善瓣膜功能。 用于改善心脏瓣膜功能的方法包括将细长构件横向放置在心脏腔室上，使得细长构件的每个端部延伸通过心脏的壁，并将第一和第二锚定构件放置在腔室外部。 第一和第二锚固构件附接到细长构件的第一和第二端部，以将细长构件固定在穿过腔室的位置，以便重新定位腔室内的乳头肌肉。 一种处理阀门的方法可以包括实时监测阀门功能，并根据在实时监控期间获得的数据来调整设备。