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47 条记录 (耗时 0.022 秒)

    Coronary venous lead having fixation mechanism
    2.
    发明授权
    Coronary venous lead having fixation mechanism 失效
    冠状静脉导管具有固定机制

    公开(公告)号：US5931864A

    公开(公告)日：1999-08-03

    申请号：US27288

    申请日：1998-02-20

    申请人： Stuart R. Chastain ,  Bruce A. Tockman ,  Randy W. Westlund ,  Lili Liu

    发明人： Stuart R. Chastain ,  Bruce A. Tockman ,  Randy W. Westlund ,  Lili Liu

    IPC分类号： A61N1/05

    CPC分类号： A61N1/057 ,  A61N2001/0585

    摘要： A body implantable lead for placement in a selected coronary vein includes a resilient retention structure for inhibiting displacement of the lead because of heart beat action, breathing or other body movement. The retention structure includes a plurality of resilient projections that are attached to the lead body and which are adapted to project at a predetermined acute angle to the axis of the lead body when unconstrained. Prior to being routed through the vascular system, the projections can be bonded to the lead body to provide a low profile with a biodegradable adhesive. Following exposure to body fluids, the adhesive dissolves, releasing the projections so that they can engage the walls of the vein in which the lead is disposed.

    摘要翻译： 用于放置在所选择的冠状静脉中的身体可植入引线包括弹性保持结构，用于抑制由于心跳动作，呼吸或其他身体运动引起的位移。 保持结构包括多个弹性突起，其附接到引线主体并且适于在不受约束时以与引线主体的轴线成预定的锐角突出。 在被引导通过血管系统之前，突起可以结合到引线主体以通过可生物降解的粘合剂提供低轮廓。 在暴露于体液后，粘合剂溶解，释放突起使得它们可以与引导物置于其中的静脉的壁接合。

    Intravenous cardiac lead with wave shaped fixation segment
    6.
    发明授权
    Intravenous cardiac lead with wave shaped fixation segment 无效
    静脉心脏导联带波形固定片段

    公开(公告)号：US5925073A

    公开(公告)日：1999-07-20

    申请号：US27821

    申请日：1998-02-23

    申请人： Stuart R. Chastain ,  Bruce A. Tockman ,  Randy W. Westlund

    发明人： Stuart R. Chastain ,  Bruce A. Tockman ,  Randy W. Westlund

    IPC分类号： A61N1/05

    CPC分类号： A61N1/057 ,  A61N2001/0585

    摘要： An intravenous lead for use with a cardiac device for implantation in the coronary venous system of the heart includes a lead body that is adapted to be routed through the vascular system into the coronary sinus with the distal end portion of the lead placed in the great cardiac vein or branch vein. The lead body includes a preformed section disposed just proximal of its tip so that the lead body exhibits a two-dimensional wave having peaks and valleys for contacting the endothelial layer of the vein at discrete, longitudinally spaced points to stabilize the electrode against displacement.

    摘要翻译： 用于心脏装置用于植入心脏冠状静脉系统的静脉导管包括引线体，其适于通过血管系统引导到冠状窦中，将引线的远端部分放置在大心脏中 静脉或分支静脉。 引线体包括设置在其尖端附近的预成型部分，使得引线体呈现出具有峰和谷的二维波，用于在离散的纵向间隔的点处接触静脉的内皮层，以使电极抵抗位移。

    Coronary venous lead having fixation mechanism
    9.
    发明授权
    Coronary venous lead having fixation mechanism 有权
    冠状静脉导管具有固定机制

    公开(公告)号：US06178356B1

    公开(公告)日：2001-01-23

    申请号：US09280128

    申请日：1999-03-26

    申请人： Stuart A. Chastain ,  Bruce A. Tockman ,  Randy W. Westlund ,  Lili Liu

    发明人： Stuart A. Chastain ,  Bruce A. Tockman ,  Randy W. Westlund ,  Lili Liu

    IPC分类号： A61N105

    CPC分类号： A61N1/057 ,  A61N2001/0585

    摘要： A body implantable lead for placement in a selected coronary vein includes a resilient retention structure for inhibiting displacement of the lead because of heart beat action, breathing or other body movement. The retention structure includes a plurality of resilient projections that are attached to the lead body and which are adapted to project at a predetermined acute angle to the axis of the lead body when unconstrained. Prior to being routed through the vascular system, the projections can be bonded to the lead body to provide a low profile with a biodegradable adhesive. Following exposure to body fluids, the adhesive dissolves, releasing the projections so that they can engage the walls of the vein in which the lead is disposed.

    摘要翻译： 用于放置在所选择的冠状静脉中的身体可植入引线包括弹性保持结构，用于抑制由于心跳动作，呼吸或其他身体运动引起的位移。 保持结构包括多个弹性突起，其附接到引线主体并且适于在不受约束时以与引线主体的轴线成预定的锐角突出。 在被引导通过血管系统之前，突起可以结合到引线主体以通过可生物降解的粘合剂提供低轮廓。 在暴露于体液后，粘合剂溶解，释放突起使得它们可以与引导物置于其中的静脉的壁接合。

    Modified guidewire for left ventricular access lead
    10.
    发明授权
    Modified guidewire for left ventricular access lead 失效
    修改左心室导线导丝

    公开(公告)号：US06671560B2

    公开(公告)日：2003-12-30

    申请号：US10081436

    申请日：2002-02-20

    申请人： Randy W. Westlund ,  Bruce A. Tockman ,  Randall M. Peterfeso ,  John S. Greenland ,  Mary N. Hinders

    发明人： Randy W. Westlund ,  Bruce A. Tockman ,  Randall M. Peterfeso ,  John S. Greenland ,  Mary N. Hinders

    IPC分类号： A61N105

    CPC分类号： A61N1/057 ,  A61B2017/22035 ,  A61M25/09 ,  A61M2025/09175 ,  A61N2001/0578

    摘要： An improved guidewire for assisting in implantation of a cardiac lead includes three sections. The most distal zone is sufficiently floppy to prevent trauma to the vessel walls through which the guidewire and lead are inserted. An intermediate zone is generally stiffer and has a cross-section less than or equal to the cross-section of the distal zone. The third zone is stiffer yet and is joined to the intermediate zone by a shoulder. The shoulder cooperates with protrusions on the lead to transfer forces between the guidewire and lead. A removal wire having temporary locking device to lock the removal wire to the lead is employed to remove the guide catheter without moving the lead from its desired location. Lubricious coatings are also provided to reduce friction between the lead and guidewire.

    摘要翻译： 用于辅助植入心脏引线的改进的导线包括三个部分。 最远端的区域是足够的软盘，以防止对引导线和引线插入的血管壁的创伤。 中间区通常较硬，横截面小于或等于远端区的横截面。 第三区域较硬，并通过肩部连接到中间区域。 肩部与导线上的突起配合，以在导丝和导线之间传递力。 使用具有临时锁定装置以将去除线锁定到引线的去除线去除引导导管而不将引线从其期望位置移动。 还提供润滑涂层以减少引线和导丝之间的摩擦。