Medical electrical lead with friction-enhancing fixation features
    41.
    发明授权
    Medical electrical lead with friction-enhancing fixation features 有权
    具有摩擦增强固定功能的医用电线

    公开(公告)号:US07725197B2

    公开(公告)日:2010-05-25

    申请号:US11424349

    申请日:2006-06-15

    IPC分类号: A61N1/05

    摘要: Medical electrical leads are provided including fixation features for acute and chronic fixation of a portion of the respective leads within the cardiac venous system. The medical electrical lead includes an elongate body having proximal and distal regions. Tissue contacting portions are selectively located in the distal region to contact an inner surface of the cardiac vessel when the lead is in an implanted position. The tissue contacting portion(s) include fixation features adapted to frictionally engage the inner surface of the cardiac vessel and promote tissue in-growth for chronic fixation. In some embodiments, the fixation features are detachable from the lead such that the lead can be extracted from its implanted position after tissue in-growth occurs.

    摘要翻译: 提供了医疗电引线,其包括用于心脏静脉系统内的各个引线的一部分的急性和慢性固定的固定特征。 医疗电线包括具有近端和远端区域的细长体。 当引线处于植入位置时,组织接触部分选择性地位于远端区域中以接触心脏血管的内表面。 组织接触部分包括适于摩擦地接合心脏血管的内表面并促进用于慢性固定的组织生长的固定特征。 在一些实施例中,固定特征可从铅脱离,使得在组织生长发生之后,引线可以从其植入位置提取。

    Delivery and recovery sheaths for medical devices
    42.
    发明授权
    Delivery and recovery sheaths for medical devices 失效
    用于医疗器械的输送和恢复护套

    公开(公告)号:US07678128B2

    公开(公告)日:2010-03-16

    申请号:US09897295

    申请日:2001-06-29

    IPC分类号: A61M29/00

    摘要: A deployment control system provides controlled deployment of an embolic protection device which may include a guide wire, an expandable filter attached to the guide wire near its distal end, and a restraining sheath that maintains the expanded filter in a collapsed position. The deployment control system includes a torque control device which allows the physician to torque the guide wire into the patient's anatomy and a mechanism for preventing the guide wire from buckling as the restraining sheath is being retracted to deploy the expandable filter. A recovery control system for recovering the embolic protection device includes an inner catheter which extends within a lumen of an outer recovery sheath in a coaxial arrangement. A distal portion of the inner catheter extends beyond another recovery sheath during advancement of the recovery system into the vasculature. The recovery sheath can be advanced over the inner catheter to collapse the expandable filter. The proximal ends of the inner catheter and recovery sheath include handle portions having snap mechanisms which hold the components together as the recovery system is being advanced into the patient's vasculature.

    摘要翻译: 部署控制系统提供栓塞保护装置的可控部署,该栓塞保护装置可以包括引导线,在其远端附近附接到导丝的可扩张过滤器,以及将扩张过滤器保持在折叠位置的限制护套。 部署控制系统包括扭矩控制装置,该扭矩控制装置允许医师将导丝扭转到患者的解剖结构中,以及用于防止导线在收缩护套以展开可膨胀过滤器时弯曲的机构。 用于回收栓塞保护装置的恢复控制系统包括在同轴布置中在外部恢复护套的内腔内延伸的内导管。 在将回收系统推进脉管系统期间,内导管的远端部分延伸超过另一恢复护套。 恢复护套可以在内导管上推进以使可膨胀过滤器折叠。 内导管和恢复护套的近端包括手柄部分,其具有卡扣机构,当回收系统进入患者的脉管系统时,该部件将部件保持在一起。

    LEAD WITH INFLATABLE FIXATION MECHANISM
    43.
    发明申请
    LEAD WITH INFLATABLE FIXATION MECHANISM 失效
    具有可充气的固定机构

    公开(公告)号:US20080172118A1

    公开(公告)日:2008-07-17

    申请号:US11622810

    申请日:2007-01-12

    IPC分类号: A61N1/05

    摘要: A medical electrical lead configured for use in stimulating the left side of the heart (i.e., the left ventricle). In one embodiment, the lead includes an elongate lead body including an inner surface. An inflatable member is disposed on the outer surface of the body between its proximal and distal ends, the inflatable member being adapted when inflated to impart a radial force on and frictionally engage a surface of the coronary sinus or coronary vein for fixation of the distal end of the lead therein. The lead further includes a conductive member extending from the proximal end toward the distal end, and an inner insulating layer positioned between the conductive member and the inner surface of the body. Separation between the inner insulating layer and the inner surface of the body defines an inflation lumen in fluid communication with the inflatable member.

    摘要翻译: 构造成用于刺激心脏左侧(即,左心室)的医用电引线。 在一个实施例中,引线包括包括内表面的细长引线主体。 可膨胀构件设置在身体的近端和远端之间的外表面上,所述可膨胀构件适于在膨胀时赋予径向力并摩擦地接合冠状窦或冠状静脉的表面,用于固定远端 的铅。 引线还包括从近端朝向远端延伸的导电构件,以及位于导电构件和主体内表面之间的内绝缘层。 内绝缘层和本体内表面之间的分离限定了与可膨胀构件流体连通的膨胀腔。