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61 条记录 (耗时 0.026 秒)

    J-shaped coronary sinus lead
    41.
    发明授权
    J-shaped coronary sinus lead 有权
    J型冠状窦导联

    公开(公告)号：US06321123B1

    公开(公告)日：2001-11-20

    申请号：US09264609

    申请日：1999-03-08

    申请人： Mary M. Morris ,  Xiaoyi Min

    发明人： Mary M. Morris ,  Xiaoyi Min

    IPC分类号： A61N105

    CPC分类号： A61N1/056 ,  A61N2001/0585

    摘要： The lead configuration enhances the sensing characteristics of the lead and provides for stable location of the electrodes in the coronary sinus. The J-shaped bend in the distal portion of the lead body spaces the distal tip of the lead body less than about 0.9 inches laterally from the portion of the lead body that is proximal to the bend. The tip of the lead body is provided with a pacing/sensing electrode and the curved portion of the J-shaped bend carries an elongated coil electrode that serves as an indifferent electrode for pacing and sensing. For left atrial pacing, the lead tip electrode is located adjacent the wall of the coronary sinus closest to the left atrium, and the indifferent electrode is located adjacent the opposite wall of the coronary sinus, closer to the left ventricle. To enhance spatial distribution of the indifferent electrode and provide for greater averaging of the ventricular signal, which in turn reduces the far field of the ventricular signal, the indifferent electrode extends over 10-50 millimeters or multiple spaced indifferent electrodes are used.

    摘要翻译： 引线配置增强引线的感测特性，并提供电极在冠状窦中的稳定位置。 引线主体的远端部分中的J形弯曲部分使引线主体的远端部从导线本体的靠近弯头的部分横向偏离约0.9英寸。 引线体的尖端设置有起搏/感测电极，并且J形弯曲部的弯曲部分承载用作起搏和感测的无关电极的细长线圈电极。 对于左心房起搏，引导尖端电极位于最靠近左心房的冠状窦壁附近，而无关电极位于冠状窦的相对壁附近，靠近左心室。 为了增强无关电极的空间分布，并提供更大的心室信号的平均值，这进一步减少心室信号的远场，无差异的电极延伸超过10-50毫米或使用多个间隔的无关电极。

    Active fixation medical electrical lead having mapping capability
    43.
    发明授权
    Active fixation medical electrical lead having mapping capability 失效
    主动固定医用电线具有映射能力

    公开(公告)号：US5575814A

    公开(公告)日：1996-11-19

    申请号：US379826

    申请日：1995-01-27

    申请人： Vincent Giele ,  Kenneth B. Stokes ,  Mary M. Morris

    发明人： Vincent Giele ,  Kenneth B. Stokes ,  Mary M. Morris

    IPC分类号： A61N1/05

    CPC分类号： A61N1/0573 ,  A61N1/057

    摘要： A body-implantable transvenous endocardial lead for an implantable medical device system. The lead includes inner and outer coiled conductors each surrounded by a flexible elongate sheath such that the inner conductor is rotatable within the outer sheath. An electrode assembly disposed at the distal end of the lead includes a distally-projecting fixation helix. A sliding member in the electrode assembly includes a helix-engaging collar for engaging the coils of the fixation helix, such that when the helix is rotated in a first direction with respect to the sliding member, it is advanced in a screw-like fashion distally forward with respect to the sliding member, and when the helix is rotated in a second direction with respect to the sliding member, it is retracted proximally backward with respect to the sliding member. A tip electrode is disposed on the distal end of the sliding member. When the helix is fully retracted, the helix-engaging collar is disposed substantially at the distal end of the helix such that the tip electrode extends distally beyond the distal end of the helix. When the helix is fully advanced, the helix engaging collar and the electrode are positioned substantially within the helix.

    摘要翻译： 一种用于植入式医疗装置系统的体内可植入的经静脉心内膜。 引线包括内部和外部线圈导体，每个导体均由柔性细长护套围绕，使得内部导体可在外部护套内旋转。 设置在引线的远端的电极组件包括远侧突出的固定螺旋。 电极组件中的滑动构件包括用于接合固定螺旋线圈的螺旋接合套环，使得当螺旋线相对于滑动构件沿第一方向旋转时，其螺旋状向前延伸 相对于滑动构件向前倾斜，并且当螺旋线相对于滑动构件沿第二方向旋转时，其相对于滑动构件向后退缩。 尖端电极设置在滑动构件的远端上。 当螺旋完全缩回时，螺旋接合套环基本上设置在螺旋的远端，使得尖端电极向远侧延伸超过螺旋的远端。 当螺旋完全前进时，螺旋接合环和电极基本上位于螺旋内。

    Silicon insulated extendable/retractable screw-in pacing lead with high efficiency torque transfer
    44.
    发明授权
    Silicon insulated extendable/retractable screw-in pacing lead with high efficiency torque transfer 失效
    硅绝缘可伸缩螺旋起搏线，高效转矩传递

    公开(公告)号：US5476501A

    公开(公告)日：1995-12-19

    申请号：US239006

    申请日：1994-05-06

    申请人： Mark T. Stewart ,  Mary M. Morris ,  Edward Di Domenico ,  Kenneth W. Keeney ,  Douglas R. Hess

    发明人： Mark T. Stewart ,  Mary M. Morris ,  Edward Di Domenico ,  Kenneth W. Keeney ,  Douglas R. Hess

    IPC分类号： A61N1/05 ,  B29C59/14

    CPC分类号： A61N1/056 ,  B29C59/142

    摘要： An implantable electrode type lead assembly of the flexible type which is particularly adapted for implantation in the cardiac tissue for applications such as use with a pacemaker. The lead assembly has an electrode head which includes a fixation spiral for implantation into tissue. The spiral or rotation action of the electrode head is controlled by means of an elongated torsionally wound electrical coil conductor, the coil extending through the lead from the proximal to the distal end thereof and carried within a silicone tube which is co-extensive therewith, the tube having been especially treated to modify the slip characteristics of the internal diameter (ID) thereof for high efficiency torque transfer.

    摘要翻译： 一种柔性类型的可植入电极型引线组件，其特别适用于植入心脏组织以用于起搏器等应用。 引线组件具有电极头，其包括用于植入组织的固定螺旋。 电极头的螺旋或旋转动作通过细长的扭转缠绕的电线圈导体进行控制，该线圈从其近端延伸穿过导线并延伸到与其共同延伸的硅胶管内， 管被特别处理以改变其内径（ID）的滑动特性，用于高效率扭矩传递。

    Method of manufacturing medical electrical lead having a torque indicator
    45.
    发明授权
    Method of manufacturing medical electrical lead having a torque indicator 失效
    制造具有扭矩指示器的医用电线的制造方法

    公开(公告)号：US5473812A

    公开(公告)日：1995-12-12

    申请号：US227429

    申请日：1994-04-14

    申请人： Mary M. Morris ,  John S. Germanson ,  Michael A. Ruff ,  Richard D. Sandstrom

    发明人： Mary M. Morris ,  John S. Germanson ,  Michael A. Ruff ,  Richard D. Sandstrom

    IPC分类号： A61N1/05 ,  A61N1/362 ,  H01R43/00

    CPC分类号： A61N1/056 ,  Y10T29/49117

    摘要： A medical electrical lead and method of manufacturing such a lead for use in cardiac pacing, the lead having a distal end having an active fixation device such as a helix electrode (46) having a distal end and a proximal end, the tissue securing means extending from the lead body distal end, an electrical conductor (15) extending between the proximal and distal ends of the lead, and a longitudinally extending torque indicator (35 or 36) affixed to the lead body (10) proximal to the tissue securing means, the torque indicator (35 or 36) showing rotational movement or distortion of the torque indicator (35 or 36) under fluoroscopy.

    摘要翻译： 一种医疗电引线和制造用于心脏起搏的这种引线的方法，所述引线具有远端，所述远端具有主动固定装置，例如具有远端和近端的螺旋电极（46），所述组织固定装置延伸 从引线体远端引出在引线的近端和远端之间延伸的电导体（15），以及靠近组织固定装置固定到引线本体（10）的纵向延伸的扭矩指示器（35或36） 显示在透视下的转矩指示器（35或36）的旋转运动或变形的转矩指示器（35或36）。

    Medical electrical lead having a torque indicator
    46.
    发明授权
    Medical electrical lead having a torque indicator 失效
    具有转矩指示器的医用电线

    公开(公告)号：US5456705A

    公开(公告)日：1995-10-10

    申请号：US301104

    申请日：1994-09-06

    申请人： Mary M. Morris

    发明人： Mary M. Morris

    IPC分类号： A61N1/05 ,  A61N1/362

    CPC分类号： A61N1/056 ,  Y10T29/49117

    摘要： A body-implantable lead (10) for use in cardiac pacing having a proximal end and a distal end, the proximal end connected to a medical device, an active fixation device such as a helix electrode (330) extending from the lead body distal end, an electrical conductor (15) extending between the proximal and distal ends of the lead, and a longitudinally extending radiopaque marker (35 or 335) affixed to the lead body (10) proximal to the helix electrode, the radiopaque marker (35 or 335) showing rotational movement or distortion of the radiopaque marker (35 or 335) under fluoroscopy.

    摘要翻译： 一种用于心脏起搏的体动植入式引线（10），其具有近端和远端，所述近端连接到医疗装置，主动固定装置，例如从引线体远端延伸的螺旋电极（330） ，在导线的近端和远端之间延伸的电导体（15）和固定到靠近螺旋电极的引线本体（10）的纵向延伸的不透射线的标记（35或335），不透射线的标记（35或335 ）在荧光透视下显示不透射线标记物（35或335）的旋转运动或变形。