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67 条记录 (耗时 0.097 秒)

    Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation
    34.
    发明授权
    Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation 有权
    长期植入式主动固定医用电线和相关方法用于非荧光镜植入

    公开(公告)号：US08135467B2

    公开(公告)日：2012-03-13

    申请号：US12492906

    申请日：2009-06-26

    申请人： H. Toby Markowitz ,  Chad Giese ,  Steven L. Waldhauser

    发明人： H. Toby Markowitz ,  Chad Giese ,  Steven L. Waldhauser

    IPC分类号： A61N1/00

    CPC分类号： A61N1/056 ,  A61N1/0573 ,  A61N1/08

    摘要： Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using a non-fluoroscopic position sensing unit (PSU). Such a system requires that a conductive material, such as a retractable helical tip-electrode, be exposed during implantation. Since the tip is retracted during implantation, this disclosure provides a modified distal portion employing at least one aperture (or “window”) for fluid exposure of the helix-electrode and a deployable internal sleeve for covering the aperture(s) when the helix-electrode is extended.

    摘要翻译： 生物阻抗可用于导航系统，以使用非荧光位置感测单元（PSU）在心脏中长期植入起搏和除颤引线。 这样的系统需要在植入期间露出诸如可伸缩螺旋尖端电极的导电材料。 由于尖端在植入期间缩回，本公开提供了一种改进的远侧部分，其采用至少一个用于螺旋电极的流体暴露的孔口（或“窗口”），以及可展开的内部套筒， 电极延长。

    System and method for determining sheath location
    35.
    发明授权
    System and method for determining sheath location 有权
    用于确定护套位置的系统和方法

    公开(公告)号：US08839798B2

    公开(公告)日：2014-09-23

    申请号：US12421375

    申请日：2009-04-09

    申请人： H. Toby Markowitz ,  Chad Giese ,  Jeff Jannicke ,  Steven L. Waldhauser

    发明人： H. Toby Markowitz ,  Chad Giese ,  Jeff Jannicke ,  Steven L. Waldhauser

    IPC分类号： A61B19/00

    CPC分类号： A61B5/06 ,  A61B5/0215 ,  A61B5/0422 ,  A61B5/053 ,  A61B5/0538 ,  A61B5/063 ,  A61B6/12 ,  A61B34/20 ,  A61B2034/2046 ,  A61B2034/2051 ,  A61B2034/2053 ,  A61B2034/2072 ,  G06K2209/05 ,  G06K2209/057

    摘要： A system for determining a location of an instrument within an anatomy is provided. The system can include a first instrument, which can define at least one lumen. The system can further include a second instrument, which can be received through the at least one lumen. The system can include at least one electrode, which can be coupled to a distal end of the first instrument. The electrode can be responsive to electrical activity to generate at least one signal. The system can include a sensing unit, which can be in contact with the anatomy to sense electrical activity within the anatomy at a location near the instrument. The sensing unit can be in communication with the electrode to receive the signal. The system can further include a control module that can determine, based on the sensed electrical activity and the signal, the location of the first instrument.

    摘要翻译： 提供了一种用于确定在解剖结构内的仪器的位置的系统。 该系统可以包括可以限定至少一个内腔的第一仪器。 该系统还可以包括可以通过至少一个内腔接收的第二仪器。 该系统可以包括至少一个电极，其可以联接到第一仪器的远端。 电极可以响应于电活动以产生至少一个信号。 系统可以包括感测单元，其可以与解剖结构接触以感测在仪器附近的位置处的解剖结构内的电活动。 感测单元可以与电极连通以接收信号。 该系统还可以包括控制模块，该控制模块可以基于检测到的电活动和信号来确定第一仪器的位置。

    CHRONICALLY-IMPLANTABLE ACTIVE FIXATION MEDICAL ELECTRICAL LEADS AND RELATED METHODS FOR NON-FLUOROSCOPIC IMPLANTATION
    36.
    发明申请
    CHRONICALLY-IMPLANTABLE ACTIVE FIXATION MEDICAL ELECTRICAL LEADS AND RELATED METHODS FOR NON-FLUOROSCOPIC IMPLANTATION 有权
    慢性植入式有源固定型医用电线及相关方法非手术植入

    公开(公告)号：US20100004724A1

    公开(公告)日：2010-01-07

    申请号：US12492906

    申请日：2009-06-26

    申请人： H. Toby Markowitz ,  Chad Giese ,  Steven L. Waldhauser

    发明人： H. Toby Markowitz ,  Chad Giese ,  Steven L. Waldhauser

    IPC分类号： A61N1/05

    CPC分类号： A61N1/056 ,  A61N1/0573 ,  A61N1/08

    摘要： Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using anon-fluoroscopic position sensing unit (PSU), such as a modified LocaLisa® system from Medtronic Inc., which allows for variable frequency sampling of the position of electrode of a catheter. The PSU injects small AC signals via surface electrodes in three orthogonal axes, each on a slightly different frequency (e.g., near 30 KHz). Indwelling electrodes electrically connected to the PSU resolves the magnitude of induced voltage for each of the three frequencies, thus measuring voltage for each of the three axes. Voltages are divided by induced current to yield impedance in each axis for each electrode. Impedance is proportional to position within the body. Such a system requires that a conductive material, such as a retractable helical tip-electrode, be exposed during implantation. Since the tip is retracted during implantation, this disclosure provides a modified distal portion employing at least one aperture (or “window”) for fluid exposure of the helix-electrode and a deployable internal sleeve for covering the aperture(s) when the helix-electrode is extended.

    摘要翻译： 生物阻抗可用于导航系统，以使用例如美敦力公司（Medtronic Inc.）的经修改的LocaLisa系统从心脏中长期植入心脏起搏和除颤引线，该系统允许可变频率采样 的导管的电极的位置。 PSU通过三个正交轴中的表面电极注入小的AC信号，每个在稍微不同的频率（例如，接近30KHz）处。 电连接到PSU的留置电极解决三个频率中的每一个的感应电压的大小，从而测量三个轴中的每一个的电压。 电压被感应电流除以每个电极的每个轴线产生阻抗。 阻抗与体内的位置成比例。 这样的系统需要在植入期间露出诸如可伸缩螺旋尖端电极的导电材料。 由于尖端在植入期间缩回，本公开提供了一种改进的远侧部分，其采用至少一个用于螺旋电极的流体暴露的孔口（或“窗口”），以及可展开的内部套筒， 电极延长。

    Determining a position of a member within a sheath
    37.
    发明申请
    Determining a position of a member within a sheath 有权
    确定构件在护套内的位置

    公开(公告)号：US20090264739A1

    公开(公告)日：2009-10-22

    申请号：US12421375

    申请日：2009-04-09

    申请人： H. Toby Markowitz ,  Chad Giese ,  Jeff Jannicke ,  Steven L. Waldhauser

    发明人： H. Toby Markowitz ,  Chad Giese ,  Jeff Jannicke ,  Steven L. Waldhauser

    IPC分类号： A61B5/053

    CPC分类号： A61B5/06 ,  A61B5/0215 ,  A61B5/0422 ,  A61B5/053 ,  A61B5/0538 ,  A61B5/063 ,  A61B6/12 ,  A61B34/20 ,  A61B2034/2046 ,  A61B2034/2051 ,  A61B2034/2053 ,  A61B2034/2072 ,  G06K2209/05 ,  G06K2209/057

    摘要： A system for determining a location of an instrument within an anatomy is provided. The system can include a first instrument, which can define at least one lumen. The system can further include a second instrument, which can be received through the at least one lumen. The system can include at least one electrode, which can be coupled to a distal end of the first instrument. The electrode can be responsive to electrical activity to generate at least one signal. The system can include a sensing unit, which can be in contact with the anatomy to sense electrical activity within the anatomy at a location near the instrument. The sensing unit can be in communication with the electrode to receive the signal. The system can further include a control module that can determine, based on the sensed electrical activity and the signal, the location of the first instrument.

    摘要翻译： 提供了一种用于确定在解剖结构内的仪器的位置的系统。 该系统可以包括可以限定至少一个内腔的第一仪器。 该系统还可以包括可以通过至少一个内腔接收的第二仪器。 该系统可以包括至少一个电极，其可以耦合到第一器械的远端。 电极可以响应于电活动以产生至少一个信号。 系统可以包括感测单元，其可以与解剖结构接触以感测在仪器附近的位置处的解剖结构内的电活动。 感测单元可以与电极连通以接收信号。 该系统还可以包括控制模块，该控制模块可以基于检测到的电活动和信号来确定第一仪器的位置。

    Trans-septal lead anchoring
    40.
    发明授权
    Trans-septal lead anchoring 有权
    跨间隔引导锚定

    公开(公告)号：US08942829B2

    公开(公告)日：2015-01-27

    申请号：US13009972

    申请日：2011-01-20

    申请人： Paul T. Rothstein ,  Martin J. Clements ,  Michael W. Kimmel ,  Steven L. Waldhauser

    发明人： Paul T. Rothstein ,  Martin J. Clements ,  Michael W. Kimmel ,  Steven L. Waldhauser

    IPC分类号： A61N1/00 ,  A61N1/05

    CPC分类号： A61N1/0573

    摘要： Methods, devices and assemblies for anchoring implanted medical electrical leads employed in the stimulating and/or sensing of signals in tissue are disclosed. The devices include a lead anchoring clip having a central hub portion, an anchoring portion for coupling to tissue and a lead engagement mechanism that couples the clip to a medical electrical lead.

    摘要翻译： 公开了用于锚固植入医疗电引线的方法，装置和组件，用于刺激和/或感测组织中的信号。 这些装置包括具有中心毂部分的引导定位夹，用于联接到组织的锚定部分和将夹子连接到医疗电引线的引线接合机构。