High impedance electrode tip
    3.
    发明授权
    High impedance electrode tip 失效
    高阻抗电极尖端

    公开(公告)号:US06501994B1

    公开(公告)日:2002-12-31

    申请号:US09121288

    申请日:1998-07-22

    IPC分类号: A61N105

    CPC分类号: A61N1/0573

    摘要: An implantable lead, being either a fixed or retractable/extendable lead, having a distal tip electrode is adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity. The electrode includes a mechanical fastener such as a fixation helix for securing the electrode to cardiac tissue, which may or may not be electrically active. The implantable electrode with a helical tip includes an electrode which has a distal end and a proximal end. A helix is disposed within the electrode, where the helix is aligned along a radial axis of the electrode. The electrode further includes one or more of the following features: the helix having a coating of an insulating material on a surface of the helix, a porous conductive surface at a base of the helix, a porous conductive element at the end of the electrode having an insulating coating covering from 5-95% of the surface of the porous conductive element. The electrode may farther include an electrode tip having a porous electrical conductive element, such as a mesh screen, disposed on a surface at the distal end of the electrode tip, which can be used as a sensing or pacing interface with the cardiac tissue.

    摘要翻译: 具有远端尖端电极的可植入引线(或者是固定的或可伸缩的引线)适于植入在心脏上或其周围,并用于连接到用于监测或刺激心脏活动的系统。 电极包括机械紧固件,例如用于将电极固定到心脏组织的固定螺旋,其可以是或不是电活动的。 具有螺旋尖端的可植入电极包括具有远端和近端的电极。 螺旋线设置在电极内,其中螺旋沿着电极的径向轴线排列。 电极还包括以下特征中的一个或多个:螺旋具有在螺旋表面上的绝缘材料的涂层,在螺旋的基底处的多孔导电表面,在电极末端的多孔导电元件, 覆盖多孔导电元件表面的5-95%的绝缘涂层。 电极可以进一步包括具有设置在电极尖端的远端的表面上的多孔导电元件(例如网眼丝网)的电极末端,其可以用作与心脏组织的感测或起搏界面。

    Low profile, ventricular, transvenous, epicardial defibrillation lead
    4.
    发明授权
    Low profile, ventricular, transvenous, epicardial defibrillation lead 有权
    低调,心室,静脉,心外膜除颤引线

    公开(公告)号:US06408213B1

    公开(公告)日:2002-06-18

    申请号:US09407364

    申请日:1999-09-29

    IPC分类号: A61N100

    CPC分类号: A61N1/0563 A61N2001/0585

    摘要: A cardiac lead designed for implantation in the vasculature of the left side of the heart comprising a flexible lead body having a central lumen, a removable terminal pin, electrodes electrically coupled to the removable terminal pin, a mechanism for securing the electrodes in the proper position in the vasculature and a mechanism for sealing the central lumen after implantation to prevent body fluids from invading the lumen. The cardiac lead can be implanted or explanted using either a guidewire, a guide catheter or both.

    摘要翻译: 设计用于植入在心脏左侧脉管系统中的心脏引线,包括具有中心腔的柔性引线体,可移除端子引脚,电耦合到可移除端子引脚的电极,用于将电极固定在适当位置的机构 在脉管系统中以及用于在植入后密封中央腔的机构,以防止体液侵入内腔。 可以使用导丝,引导导管或两者将植入或移植心脏引线。

    High impedance electrode tip with internal drug delivery capability

    公开(公告)号:US06298272B1

    公开(公告)日:2001-10-02

    申请号:US09280610

    申请日:1999-03-29

    IPC分类号: A61N105

    CPC分类号: A61N1/0575 A61N1/0568

    摘要: An implantable lead, being either a fixed or retractable/extendable lead, having a distal tip electrode is adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity. The electrode includes a mechanical fastener such as a fixation helix for securing the electrode to cardiac tissue, which may or may not be electrically active. The implantable electrode with a helical tip may comprise: an electrode having a distal end and a proximal end; and a helix disposed within the electrode, which helix is aligned along a radial axis of the electrode to the distal end; and the implantable electrode having at least one feature selected from the group consisting of: a) the helix having a coating of an insulating material on its surface, b) the helix having its surface beyond the distal end of the electrode and the distal end of the electrode having a porous conductive surface at a base of the helix, c) a porous conductive element, screen or mesh at a base of the helix, and d) a porous conductive element at the end of the electrode having an insulating coating covering from 5-95% of the surface of the porous conductive element. The electrode may further include an electrode tip having a porous electrical conductive element, such as a mesh screen, disposed on a surface at the distal end of the electrode tip, which can be used as a sensing or pacing interface with the cardiac tissue. The porous electrically conductive element will usually be positioned at the base of the helix (when extended if extendable/retractable). The mesh or screen may provide a guiding mechanism for the helix as it travels out of the electrode for securing the electrode to the heart or other muscle or organ. The guiding mechanism may include a groove within the mesh screen. Alternatively, the guiding mechanism includes a guiding bar on which the fixation helix rides on during extension or retraction. In combination with each of these high impedance tips, a drug delivery system is provided at least the majority of which drug delivery system is provided from a source within a volume which is within the structural walls of the lead and/or within a volume having its major dimensions and/or at least 50% of its volume generally within the projected area of the tip.

    System and assembly having conductive fixation features
    6.
    发明授权
    System and assembly having conductive fixation features 有权
    具有导电固定特征的系统和组件

    公开(公告)号:US06842648B2

    公开(公告)日:2005-01-11

    申请号:US10054600

    申请日:2002-01-22

    IPC分类号: A61N1/05

    摘要: A lead having a distal end electrode assembly adapted for implantation on or about the heart or within a vein and for connection to a system for monitoring or stimulating cardiac activity. The electrode assembly includes conductive fixation features, such as conductive tines or flexible members, in combination with non-conductive fixation features. The conductive fixation features also include tines coated with a conductive material. The fixation features further include conductive tines which are retractable. A defibrillation coil is optionally disposed at the distal end of the lead in combination with the conductive tines.

    摘要翻译: 一种具有远端电极组件的引线,其适于植入在心脏上或周围的静脉内并且用于连接到用于监测或刺激心脏活动的系统。 电极组件包括与非导电固定特征组合的导电固定特征,例如导电尖齿或柔性构件。 导电固定特征还包括涂覆有导电材料的尖齿。 固定特征还包括可伸缩的导电尖齿。 除颤线圈可选地配置在导电尖端的前端,与导电齿结合。

    System and assembly having conductive fixation features
    7.
    发明授权
    System and assembly having conductive fixation features 失效
    具有导电固定特征的系统和组件

    公开(公告)号:US08055355B2

    公开(公告)日:2011-11-08

    申请号:US11031971

    申请日:2005-01-07

    IPC分类号: A61N1/05

    摘要: A lead having a distal end electrode assembly adapted for implantation on or about the heart or within a vein and for connection to a system for monitoring or stimulating cardiac activity. The electrode assembly includes conductive fixation features, such as conductive tines or flexible members, in combination with non-conductive fixation features. The conductive fixation features also include tines coated with a conductive material. The fixation features further include conductive tines which are retractable. A defibrillation coil is optionally disposed at the distal end of the lead in combination with the conductive tines.

    摘要翻译: 一种具有远端电极组件的引线,其适于植入在心脏上或周围的静脉内并且用于连接到用于监测或刺激心脏活动的系统。 电极组件包括与非导电固定特征组合的导电固定特征,例如导电尖齿或柔性构件。 导电固定特征还包括涂覆有导电材料的尖齿。 固定特征还包括可伸缩的导电尖齿。 除颤线圈可选地配置在导电尖端的前端,与导电齿结合。

    Slotted pacing/shocking electrode
    9.
    发明授权
    Slotted pacing/shocking electrode 失效
    开槽起搏/震动电极

    公开(公告)号:US6018684A

    公开(公告)日:2000-01-25

    申请号:US126068

    申请日:1998-07-30

    IPC分类号: A61N1/05 A61N1/362

    CPC分类号: A61N1/056

    摘要: A lead for use in conjunction with a cardiac rhythm management device includes an electrode coupled to a conductor. The lead includes an insulative covering in the areas distal and proximal to the electrode. The electrode includes one or more slots bridged by the insulative material to form a more secure joint between the electrode and the insulative material.

    摘要翻译: 与心律管理装置一起使用的引线包括连接到导体的电极。 引线包括在电极的远端和近端的区域中的绝缘覆盖物。 电极包括由绝缘材料桥接的一个或多个槽,以在电极和绝缘材料之间形成更牢固的接头。

    Monorail left ventricular access lead
    10.
    发明授权
    Monorail left ventricular access lead 有权
    单轨左心室通路

    公开(公告)号:US6129749A

    公开(公告)日:2000-10-10

    申请号:US139454

    申请日:1998-08-25

    IPC分类号: A61N1/05 A61B5/042

    摘要: A pacing lead for a cardiac stimulator that includes an elongated flexible insulating lead body. An electrode is attached to the lead body at its distal end. An elongated conductor extends through a lumen of the elongated lead body for connecting the electrode to the terminal pin. The conductor is in the form of a coiled wire until it reaches approximate the electrode. It is then crimped to a cable conductor which in turn is crimped or welded to the electrode. The electrode is supported at the distal end by a molded support body which includes a lumen for a guide wire.

    摘要翻译: 用于心脏刺激器的起搏线,其包括细长的柔性绝缘引线体。 电极在其远端附接到引线体。 细长导体延伸穿过细长引线体的内腔,用于将电极连接到端子引脚。 导线是线圈形,直到达到近似电极。 然后将其压接到电缆导体,电缆导体又被压接或焊接到电极。 电极通过包括用于导丝的内腔的模制支撑体在远端被支撑。