Stretch resistant vaso-occlusive coils (II)
    1.
    发明授权
    Stretch resistant vaso-occlusive coils (II) 失效
    抗拉性血管闭塞线圈(II)

    公开(公告)号:US5853418A

    公开(公告)日:1998-12-29

    申请号:US779451

    申请日:1997-01-07

    摘要: This is an implantable vaso-occlusive device. It is typically a vaso-occlusive coil comprising a primary helically wound coil which may then be wound into a secondary shape. Central to the invention is the use of a stretch-resisting member extending through the lumen formed, which stretch-resisting member is fixedly attached, directly or indirectly, to the coil in at least two locations. The stretch resisting member is preferably somewhat loose within the interior of the lumen so to prevent the coil from collapsing, binding, and therefore stiffening during passage of turns through the human body. The coil should bend easily. In some variations of the invention, the stretch-resisting member may be formed into coil tips at the ends of the coil using simple equipment such as soldering irons or the like. The tips are typically of the same diameter as is the coil body itself. This stretch-resisting member is for the primary purpose of preventing stretching of the coil during movement of that coil, e.g., by retrieval or repositioning after deployment. The device may have a self-forming secondary shape made from a pre-formed primary linear helically wound coil, although it need not have the secondary form. Desirably, the coil is extremely flexible and is controllaby released using a severable or mechanical joint such as an electrolytically detachable joint. External fibers may be attached to the device and affixed to the pre-formed linear member to increase thrombogenicity. The extremely flexible variation of the invention may be hydraulically delivered through the lumen of a catheter and is so flexible that it may be retrievably delivered therethrough a flow-directed catheter. The vaso-occlusive member may be also be covered with a fibrous braid. The device is typically introduced into the body through a catheter. The device is passed axially through the catheter sheath and assumes its secondary form upon exiting the catheter.

    摘要翻译: 这是一种植入式血管闭塞装置。 它通常是包括初级螺旋缠绕线圈的血管闭塞线圈,然后可以将其缠绕成次级形状。 本发明的中心在于在至少两个位置上使用延伸穿过形成的内腔的拉伸抵抗构件,该拉伸抵抗构件直接地或间接地固定到线圈上。 拉伸阻力构件优选地在内腔的内部稍微松动,从而防止线圈在匝穿过人体期间塌陷,结合并因此加强。 线圈应弯曲容易。 在本发明的一些变型中,可以使用诸如烙铁等的简单设备在线圈的端部处形成线圈尖端。 尖端通常具有与线圈体本身相同的直径。 该抗拉伸构件的主要目的是防止在线圈移动过程中线圈的拉伸,例如通过在展开后的取回或重新定位。 该装置可以具有由预先形成的初级线性螺旋缠绕线圈制成的自成形次级形状,尽管它不需要具有二次形式。 理想地,线圈非常柔软,并且使用可分离或机械接头(例如电解可拆卸接头)进行控制释放。 外部纤维可以附着到装置上并固定到预先形成的线性构件上以增加血栓形成。 本发明的极其灵活的变化可以通过导管的内腔液压输送,并且是如此柔性的,使得其可被可逆地递送通过其中的导向导管。 血管闭塞性构件也可以用纤维编织物覆盖。 该装置通常通过导管引入身体。 该装置轴向穿过导管护套,并在离开导管时呈现其次级形式。

    CLOSURE MEDICAL DEVICE
    5.
    发明申请
    CLOSURE MEDICAL DEVICE 失效
    闭合医疗设备

    公开(公告)号:US20090062848A1

    公开(公告)日:2009-03-05

    申请号:US11849252

    申请日:2007-08-31

    IPC分类号: A61B17/03

    摘要: A closure device for closing a puncture wound has a distal section that can be placed against the interior wall of a vessel and a proximal section that bunches in the tissue tract to close the wound. One variation of the device provides for removing the distal section from the vessel so that it resides also in the tissue tract after the proximal section has been securely bunched and lodged within the tissue tract in order to provide unobstructed fluid flow in the vessel.

    摘要翻译: 用于封闭穿刺伤口的闭合装置具有远端部分,该远端部分可以抵靠容器的内壁放置,并且近端部分在组织道中聚束以封闭伤口。 该装置的一个变型提供从容器中移除远端部分,使得其在近端部分已经被牢固地聚集并存放在组织管道内之前也位于组织管道中,以便在容器内提供畅通无阻的流体流动。

    LOCK/FLOATING MARKER BAND ON PUSHER WIRE FOR SELF-EXPANDING STENTS OR MEDICAL DEVICES
    6.
    发明申请
    LOCK/FLOATING MARKER BAND ON PUSHER WIRE FOR SELF-EXPANDING STENTS OR MEDICAL DEVICES 有权
    用于自扩张式手术或医疗器械的推杆上的锁定/浮动标记带

    公开(公告)号:US20120316636A1

    公开(公告)日:2012-12-13

    申请号:US13158223

    申请日:2011-06-10

    IPC分类号: A61F2/84

    摘要: An apparatus for deploying and retrieving a self-expanding intravascular stent includes an intravascular delivery wire and floating marker band movably retained over the intravascular stent delivery wire and releasably mounting the self-expanding intravascular stent. The floating marker band is movably retained to a fixed marker band, and a distance between the fixed marker band and the floating marker band is variable and self-adjusting. One or more struts of the self-expanding intravascular stent are releasably constrained between a catheter wall and one or more sides of the floating marker band.

    摘要翻译: 用于展开和取回自扩张血管内支架的装置包括可移动地保持在血管内支架输送线上的血管内输送线和浮动标记带,并可释放地安装自扩张血管内支架。 浮动标记带可移动地保持在固定标记带上,并且固定标记带和浮动标记带之间的距离是可变的并且是自调整的。 自膨胀血管内支架的一个或多个支柱可释放地约束在导管壁与浮动标记带的一侧或多侧之间。