Implantable lead with dissolvable coating for improved fixation and extraction

    公开(公告)号:US06584363B2

    公开(公告)日:2003-06-24

    申请号:US09906571

    申请日:2001-07-16

    IPC分类号: A61N105

    CPC分类号: A61N1/0568 A61N1/056

    摘要: A cardiac rhythm management system provides an endocardial cardiac rhythm management lead with an at least partially dissolvable coating at least partially on insulating portions of the lead body at or near its distal end. Upon dissolution, the coating promotes tissue ingrowth to secure the lead in place within fragile vascular structures or elsewhere. Dissolution of one such coating releases a therapeutic agent, such as a steroid that modifies the fibrotic scar tissue content of tissue ingrowth, such that the resulting bond between the tissue and the lead is weak, so that the lead can be easily extracted if desired. One such lead includes an insulating elongate body carrying at least. The lead also includes an at least partially dissolvable coating on an insulating portion of the peripheral distal lead surface. The coating provides one or more of a rough surface, a porous surface, or a swollen surface after being exposed to an aqueous substance.

    Subcutaneous defibrillation electrodes
    3.
    发明授权
    Subcutaneous defibrillation electrodes 失效
    皮下除颤电极

    公开(公告)号:US5603732A

    公开(公告)日:1997-02-18

    申请号:US554577

    申请日:1995-11-06

    IPC分类号: A61N1/05 A61N1/375 A61N1/39

    CPC分类号: A61N1/05

    摘要: Implantable electrodes for defibrillation are formed of pluralities of electrode segments. Each of the segments is relatively long and narrow. The electrode segments can be parallel and spaced apart from one another a distance at least ten times the nominal width, with one end of each segment mounted to a transverse distal portion of an electrically conductive lead coupling the electrode to a defibrillation pulse generator. Alternatively, segments can branch or radiate outwardly from a common junction. In yet another arrangement, electrode segments are portions of a single conductive path at the distal end of a lead from a pulse generator, arranged in either a spiral configuration or a serpentine configuration which can align electrode segments side by side, parallel and spaced apart. The electrode segments can be formed of composite conductors in the form of titanium ribbons or wires with a sputtered outer layer of platinum, or a silver core in a stainless steel tube, with a platinum layer formed onto the tube. The electrodes are highly compliant yet can provide large effective areas for defibrillation, enabling a transthoracic pulsing arrangement of two electrodes on opposite sides of the heart, implanted subcutaneously outside of the thoracic region.

    摘要翻译: 用于除颤的可植入电极由多个电极段形成。 每个段都相对长而窄。 电极段可以彼此平行和间隔至少十倍于标称宽度的距离,每个段的一端安装到将电极耦合到除颤脉冲发生器的导电引线的横向远端部分。 或者,片段可以从公共接头向外分支或辐射。 在另一种布置中,电极段是在来自脉冲发生器的引线的远端处的单个导电路径的部分,其布置成螺旋构造或蛇形结构,其可以并排并排隔离电极段。 电极段可以由具有溅射的铂外层或不锈钢管中的银芯的钛带或电线形式的复合导体形成,铂层形成在管上。 电极是高度依从性的,但可以为除颤提供大的有效区域,使得能够在心脏的相对侧上的两个电极的经胸部脉冲排列皮下植入胸部区域。

    Body implantable defibrillation system
    4.
    发明授权
    Body implantable defibrillation system 失效
    身体植入式除颤系统

    公开(公告)号:US5545202A

    公开(公告)日:1996-08-13

    申请号:US285802

    申请日:1994-08-04

    IPC分类号: A61N1/05 A61N1/375 A61N1/39

    CPC分类号: A61N1/05

    摘要: Implantable electrodes for defibrillation are formed of pluralities of electrode segments. Each of the segments is relatively long and narrow. The electrode segments can be parallel and spaced apart from one another a distance at least ten times the nominal width, with one end of each segment mounted to a transverse distal portion of an electrically conductive lead coupling the electrode to a defibrillation pulse generator. Alternatively, segments can branch or radiate outwardly from a common junction. In yet another arrangement, electrode segments are portions of a single conductive path at the distal end of a lead from a pulse generator, arranged in either a spiral configuration or a serpentine configuration which can align electrode segments side by side, parallel and spaced apart. The electrode segments can be formed of composite conductors in the form of titanium ribbons or wires with a sputtered outer layer of platinum, or a silver core in a stainless steel tube, with a platinum layer formed onto the tube. The electrodes are highly compliant yet can provide large effective areas for defibrillation, enabling a transthoracic pulsing arrangement of two electrodes on opposite sides of the heart, implanted subcutaneously outside of the thoracic region.

    摘要翻译: 用于除颤的可植入电极由多个电极段形成。 每个段都相对长而窄。 电极段可以彼此平行和间隔至少十倍于标称宽度的距离,每个段的一端安装到将电极耦合到除颤脉冲发生器的导电引线的横向远端部分。 或者,片段可以从公共接头向外分支或辐射。 在另一种布置中,电极段是在来自脉冲发生器的引线的远端处的单个导电路径的部分,其布置成螺旋构造或蛇形结构,其可以并排并排隔离电极段。 电极段可以由具有溅射的铂外层或不锈钢管中的银芯的钛带或电线形式的复合导体形成,铂层形成在管上。 电极是高度依从性的,但可以为除颤提供大的有效区域,使得能够在心脏外侧皮下植入心脏两侧的两个电极的经胸部脉冲排列。

    Single pass lead having retractable, actively attached electrode for pacing and sensing
    6.
    发明授权
    Single pass lead having retractable, actively attached electrode for pacing and sensing 失效
    单通引线具有可伸缩的,主动连接的用于起搏和感测的电极

    公开(公告)号:US06345204B1

    公开(公告)日:2002-02-05

    申请号:US09661531

    申请日:2000-09-14

    IPC分类号: A61N105

    CPC分类号: A61N1/0573

    摘要: A single-pass endocardial lead electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity including a lead body with a circumferential outer surface. The lead includes a first distal end electrode which has a first electrical conducting surface which is for positioning within the ventricle of the heart. The lead body also has a second electrode which has a second electrical conducting surface adapted for positioning within the atrium of the heart. Both of the first and the second electrodes are adapted for positioning and fixation to the wall. An active fixation element is used as part of the second electrode. The lead body also includes a curved portion which facilitates the positioning and fixing of the second electrode. In another embodiment, the main lead body includes a recess into which an atrial lead body and the active fixation element attached to one end can travel from a recessed position to a position for fixation to the wall of the heart. The active fixation element which can also be moved by turning the terminal pin.

    摘要翻译: 一种单程心内膜引导电极,其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,包括具有周向外表面的引线体。 引线包括第一远端电极,其具有用于定位在心脏心室内的第一导电表面。 引线体还具有第二电极,该第二电极具有适于定位在心脏心房内的第二导电表面。 第一和第二电极都适于定位和固定在墙上。 活性固定元件用作第二电极的一部分。 引线体还包括有助于第二电极的定位和固定的弯曲部分。在另一实施例中,主引线体包括凹部,其中一个端部的心房引线体和主动固定元件可以从凹部 位置到固定在心脏壁上的位置。 主动固定元件也可以通过转动端子销来移动。

    Endocardial lead having defibrillation and sensing electrodes with septal anchoring
    7.
    发明授权
    Endocardial lead having defibrillation and sensing electrodes with septal anchoring 失效
    具有除颤和感应/起搏电极的心内膜导联

    公开(公告)号:US06256541B1

    公开(公告)日:2001-07-03

    申请号:US09062268

    申请日:1998-04-17

    IPC分类号: A61N105

    CPC分类号: A61N1/0563 A61N1/0573

    摘要: An endocardial lead comprising an elongate body having a first defibrillation coil electrode, a second defibrillation coil electrode and a first pacing/sensing electrode. The first defibrillation coil electrode has a first end and a second end, where the first end is at or near the distal end of the elongate body and the second end spaced longitudinally from the distal end. The first pacing/sensing electrode is spaced longitudinally along the peripheral surface from the second end of the first defibrillation coil electrode. The second defibrillation coil electrode is spaced longitudinally along the peripheral surface from the first pacing/sensing electrode to afford positioning the first defibrillation coil longitudinally adjacent an apical location of the right ventricle of a heart with the first pacing/sensing electrode within the right ventricle of the heart and the second defibrillation coil within the right atrial chamber or a major vein leading to the right atrial chamber of the heart. The elongate body further includes a curved portion on which the first pacing/sensing electrode is positioned such that the first pacing/sensing electrode extends beyond the peripheral surface of the elongate body to engage the tissue of the heart. The first pacing/sensing electrode further includes a retaining element, where the retaining element is adapted to be embedded in the right ventricle of the heart to secure the first pacing/sensing electrode and the elongate body of the endocardial lead to the right ventricle of the heart.

    摘要翻译: 一种心内膜,其包括具有第一除颤线圈电极,第二除颤线圈电极和第一起搏感测电极的细长体。 第一除颤线圈电极具有第一端和第二端,其中第一端处于细长体的远端处或其附近,并且第二端与远端纵向间隔开。 第一起搏感测电极沿着与第一除颤线圈电极的第二端的外周表面纵向间隔开。 第二除颤线圈电极沿着与第一起搏/感测电极的外周表面纵向间隔开,以使第一除颤线圈与心脏右心室的顶端位置纵向相邻,其中第一起搏/感测电极位于右心室内 右心房中的心脏和第二除颤线圈或通向心脏右心房的主要静脉。 细长主体还包括弯曲部分,第一起搏/感测电极定位在弯曲部分上,使得第一起搏/感测电极延伸超出细长体的周边表面以接合心脏的组织。 第一起搏/感测电极还包括保持元件,其中保持元件适于嵌入心脏的右心室,以将第一起搏/感测电极和心内膜引导件的细长体固定到右心室 心。

    Single pass lead having retractable, actively attached electrode for
pacing and sensing
    8.
    发明授权
    Single pass lead having retractable, actively attached electrode for pacing and sensing 失效
    单通引线具有可伸缩的,主动连接的用于起搏和感测的电极

    公开(公告)号:US6152954A

    公开(公告)日:2000-11-28

    申请号:US121006

    申请日:1998-07-22

    IPC分类号: A61N1/05

    CPC分类号: A61N1/0573

    摘要: A single-pass endocardial lead electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity including a lead body with a circumferential outer surface. The lead includes a first distal end electrode which has a first electrical conducting surface which is for positioning within the ventricle of the heart. The lead body also has a second electrode which has a second electrical conducting surface adapted for positioning within the atrium of the heart. Both of the first and the second electrodes are adapted for positioning and fixation to the wall. An active fixation element is used as part of the second electrode. The lead body also includes a curved portion which facilitates the positioning and fixing of the second electrode. In another embodiment, the main lead body includes a recess into which an atrial lead body and the active fixation element attached to one end can travel from a recessed position to a position for fixation to the wall of the heart. The active fixation element which can also be moved by turning the terminal pin.

    摘要翻译: 一种单程心内膜引导电极,其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,包括具有周向外表面的引线体。 引线包括第一远端电极,其具有用于定位在心脏心室内的第一导电表面。 引线体还具有第二电极,该第二电极具有适于定位在心脏心房内的第二导电表面。 第一和第二电极都适于定位和固定在墙上。 活性固定元件用作第二电极的一部分。 引线体还包括有助于第二电极的定位和固定的弯曲部分。 在另一个实施例中,主引线主体包括凹部,其中安装在一端的心房引线主体和主动固定元件可以从凹陷位置行进到用于固定到心脏壁的位置。 主动固定元件也可以通过转动端子销来移动。

    Body implantable defibrillation system
    9.
    发明授权
    Body implantable defibrillation system 失效
    身体植入式除颤系统

    公开(公告)号:US5342407A

    公开(公告)日:1994-08-30

    申请号:US912924

    申请日:1992-07-13

    IPC分类号: A61N1/05 A61N1/375 A61N1/39

    CPC分类号: A61N1/05

    摘要: Implantable electrodes for defibrillation are formed of pluralities of electrode segments. Each of the segments is relatively long and narrow. The electrode segments can be parallel and spaced apart from one another a distance at least ten times the nominal width, with one end of each segment mounted to a transverse distal portion of an electrically conductive lead coupling the electrode to a defibrillation pulse generator. Alternatively, segments can branch or radiate outwardly from a common junction. In yet another arrangement, electrode segments are portions of a single conductive path at the distal end of a lead from a pulse generator, arranged in either a spiral configuration or a serpentine configuration which can align electrode segments side by side, parallel and spaced apart. The electrode segments can be formed of composite conductors in the form of titanium ribbons or wires with a sputtered outer layer of platinum, or a silver core in a stainless steel tube, with a platinum layer formed onto the tube. The electrodes are highly compliant yet can provide large effective areas for defibrillation, enabling a transthoracic pulsing arrangement of two electrodes on opposite sides of the heart, implanted subcutaneously outside of the thoracic region.

    摘要翻译: 用于除颤的可植入电极由多个电极段形成。 每个段都相对长而窄。 电极段可以彼此平行和间隔至少十倍于标称宽度的距离,每个段的一端安装到将电极耦合到除颤脉冲发生器的导电引线的横向远端部分。 或者,片段可以从公共接头向外分支或辐射。 在另一种布置中,电极段是在来自脉冲发生器的引线的远端处的单个导电路径的部分,其布置成螺旋构造或蛇形结构,其可以并排并排隔离电极段。 电极段可以由具有溅射的铂外层或不锈钢管中的银芯的钛带或电线形式的复合导体形成,铂层形成在管上。 电极是高度依从性的,但可以为除颤提供大的有效区域,使得能够在心脏外侧皮下植入心脏两侧的两个电极的经胸部脉冲排列。

    Subcutaneous defibrillation electrodes
    10.
    发明授权
    Subcutaneous defibrillation electrodes 失效
    扁平电极

    公开(公告)号:US5203348A

    公开(公告)日:1993-04-20

    申请号:US533886

    申请日:1990-06-06

    IPC分类号: A61N1/05 A61N1/375 A61N1/39

    CPC分类号: A61N1/05

    摘要: Implantable electrodes for defibrillation are formed of pluralities of electrode segments. Each of the segments is relatively long and narrow. The electrode segments can be parallel and spaced apart from one another a distance at least ten times the nominal width, with one end of each segment mounted to a transverse distal portion of an electrically conductive lead coupling the electrode to a defibrillation pulse generator. Alternatively, segments can branch or radiate outwardly from a common junction. In yet another arrangement, electrode segments are portions of a single conductive path at the distal end of a lead from a pulse generator, arranged in either a spiral configuration or a serpentine configuration which can align electrode segments side by side, parallel and spaced apart. The electrode segments can be formed of composite conductors in the form of titanium ribbons or wires with a sputtered outer layer of platinum, or a silver core in a stainless steel tube, with a platinum layer formed onto the tube. The electrodes are highly compliant yet can provide large effective areas for defibrillation, enabling a transthoracic pulsing arrangement of two electrodes on opposite sides of the heart, implanted subcutaneously outside of the thoracic region.