Expandable stent delivery sheath and method of use
    31.
    发明授权
    Expandable stent delivery sheath and method of use 有权
    可扩展支架输送护套及使用方法

    公开(公告)号:US06443979B1

    公开(公告)日:2002-09-03

    申请号:US09469150

    申请日:1999-12-20

    IPC分类号: A61F206

    CPC分类号: A61F2/958 A61F2002/9583

    摘要: An expandable delivery sheath is provided for intravascular introduction into a patient's vasculature by means of a guiding catheter. An interventional device, such as a stent delivery catheter, is subsequently advanced within the expandable sheath to a point where the stent traverses an arterial lesion. The sheath forms a protective barrier between the lesion and the stent and it delivery catheter, thereby preventing the creation of emboli which might otherwise be produced by abrasion of the stent against the plaque of the arterial lesion. Prior to expansion of the stent, the expandable sheath is retracted from the area of treatment.

    摘要翻译: 提供可扩张的输送鞘,用于通过引导导管将血管内引入患者的脉管系统。 介入装置,例如支架输送导管,随后在可扩张护套内前进到支架穿过动脉损伤部位。 护套在病变和支架之间形成保护屏障,并且其输送导管,从而防止产生栓塞,否则可能由支架相对于动脉损伤斑块的磨损产生。 在扩张支架之前,可扩张护套从治疗区域缩回。

    Vibrating guidewire
    32.
    发明授权

    公开(公告)号:US5908395A

    公开(公告)日:1999-06-01

    申请号:US822150

    申请日:1997-03-17

    IPC分类号: A61B17/22 A61B5/103

    摘要: The invention is directed to a hand held vibration device which imparts reciprocating motion in a guidewire while leaving the guidewire free to rotate about its longitudinal axis, to facilitate advancement of the guidewire through a highly occluded blood vessel. The vibrating device is provided with a lock ring for reversibly preventing guidewire rotation without effecting guidewire reciprocation, and the reciprocation length of the device may be varied. The length the guidewire extends past the distal end of a delivery catheter may be varied from controls on the device which do not require guidewire detachment from the reciprocating mechanism. The device may be used with or without a delivery catheter provided with a curved distal end, the curvature of which can be varied while the catheter is inside the patient.

    Expandable devices
    33.
    发明授权

    公开(公告)号:US09358139B2

    公开(公告)日:2016-06-07

    申请号:US13819846

    申请日:2011-08-30

    IPC分类号: A61F2/915 A61F2/82

    摘要: An expandable, bistable open cell design incorporates the following features: a first relatively stiff portion (152) having first and second ends and a first relatively flexible portion (154) connected to the first and second ends of the first relatively stiff portion, the first relatively stiff portion and the first relatively flexible portion substantially surrounding a first open area (156) of the stent structure; a second relatively stiff portion (158) having first and second ends and a second relatively flexible portion (160) connected to the first and second ends of the first relatively stiff portion, the first relatively stiff portion and the first relatively flexible portion substantially surrounding a second open area (162) of the stent structure; and an opening (110) formed through the first relatively stiff portion and the second relatively flexible portion such that the opening connects the first and second open areas, thereby creating first and second intermediate ends (152a, 152b) of the first relatively stiff portion and first and second intermediate ends (160a, 160b) of the second relatively flexible portion. The first intermediate end (152a) of the relatively stiff portion is connected to the first intermediate end (160a) of the relatively flexible portion so as to create a first inward apex (170), the second intermediate end (152b) of the relatively stiff portion is connected to the second intermediate end (160b) of the relatively flexible portion so as to create a second inward apex (172), and the stent structure is configured such that, in a collapsed configuration, the first inward apex (170) is in contact with the second inward apex (172) and, in an expanded configuration, the first inward apex is biased to move in a first circumferential direction and the second inward apex is biased to move in a second circumferential direction that is different than the first circumferential direction.

    Embolic protection devices
    34.
    发明授权
    Embolic protection devices 有权
    栓塞保护装置

    公开(公告)号:US08845583B2

    公开(公告)日:2014-09-30

    申请号:US11651667

    申请日:2007-01-10

    IPC分类号: A61M29/00 A61F2/01

    摘要: An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guidewire and is deployed within the patient's vasculature as the guidewire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guidewire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

    摘要翻译: 一种用于血管中的栓塞保护装置,当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中,过滤组件附接到导丝的远端,并且当导线被操纵进入治疗区域时,其部署在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置,直到其准备好由医师部署。 此后,护套可缩回以露出过滤组件,然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送,并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件,其向组件的远端施加轴向力,以根据需要来扩展或收缩支柱。

    Mechanism for releasably engaging an implantable medical device for implantation
    35.
    发明授权
    Mechanism for releasably engaging an implantable medical device for implantation 有权
    用于可释放地接合用于植入的可植入医疗装置的机构

    公开(公告)号:US08676349B2

    公开(公告)日:2014-03-18

    申请号:US11855501

    申请日:2007-09-14

    IPC分类号: A61N1/05

    摘要: An apparatus for releasably engaging an implantable medical device during delivery includes an elongate, tubular body having an open distal end a plurality of deflectable jaw members extending distally from the distal end of the body and terminating in distal tip portions, and an actuating member slidably disposed within the body and including a distal end portion operable to prevent inward deflection of the jaw members when positioned proximate the distal tip portions. The jaw members are adapted to releasably engage an engagement feature of the implantable medical device.

    摘要翻译: 一种用于在输送过程中可释放地接合植入式医疗装置的装置包括细长的管状体,其具有开放的远端,多个可偏转的钳口构件从主体的远端向远端延伸并且终止于远侧末端部分,以及可滑动地设置的致动构件 并且包括远端部分,其可操作以防止当邻近远侧末端部分定位时夹爪构件向内偏转。 钳口构件适于可释放地接合可植入医疗装置的接合特征。

    Inventory sparing catheter systems and methods
    36.
    发明授权
    Inventory sparing catheter systems and methods 有权
    库存节省导管系统和方法

    公开(公告)号:US08444625B2

    公开(公告)日:2013-05-21

    申请号:US12776239

    申请日:2010-05-07

    IPC分类号: A61M31/00

    摘要: Some embodiments relate to a catheter system having a changeable or adjustable working length. The catheter system can comprise a proximal end, a distal end, and a first axial lumen configured to receive a guidewire formed through at least a portion of the catheter body. A first opening can be formed through a portion of the catheter body and be in communication with the first lumen. The sheath can be rotatable, axially movable, or otherwise changeable from at least a first position to a second position, wherein the sheath can substantially cover the first opening in the catheter body in the first position, and can substantially expose the first opening in the catheter body in the second position.

    摘要翻译: 一些实施例涉及具有可变的或可调节的工作长度的导管系统。 导管系统可以包括近端,远端和构造成接收通过导管主体的至少一部分形成的导丝的第一轴向腔。 可以通过导管主体的一部分形成第一开口并与第一管腔连通。 护套可以是可旋转的,可轴向移动的或可以从至少第一位置改变到第二位置,其中护套可以在第一位置上基本上覆盖导管主体中的第一开口,并且可以基本上暴露在第一位置的第一开口 导管体位于第二位置。

    Guidewire having linear change in stiffness
    37.
    发明授权
    Guidewire having linear change in stiffness 有权
    导丝具有刚度线性变化

    公开(公告)号:US08308660B2

    公开(公告)日:2012-11-13

    申请号:US13150973

    申请日:2011-06-01

    IPC分类号: A61B5/00

    摘要: The invention is directed to a guidewire having a distal section with multiple distally tapered core segments with at least two contiguous distally tapering core segments in which the most distal tapered core segment preferably has a greater degree of taper than the proximally contiguous tapered core segment. The invention is also directed to an elongated intracorporeal device, preferably a guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal section of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that preferably is configured to produce a linear change in stiffness of the core over a longitudinal section of the device.

    摘要翻译: 本发明涉及一种具有多个具有至少两个相邻的远端锥形芯段的多个远端锥形芯部段的远端部分,其中最远端锥形芯部段优选地具有比近端相邻的锥形芯部分更大的锥度。 本发明还涉及一种细长的体内装置,优选的导丝或其一部分,其具有芯构件或类似物,多个相邻的锥形段具有锥形角,该锥形角构造成在纵向截面上产生刚度线性变化 的设备。 该装置还可以具有连续变化的锥角的芯部分,以产生曲线轮廓,该曲线轮廓优选地被配置为在装置的纵向部分上产生芯的刚度的线性变化。

    Embolic filtering devices
    38.
    发明授权
    Embolic filtering devices 有权
    栓塞过滤装置

    公开(公告)号:US07976560B2

    公开(公告)日:2011-07-12

    申请号:US11654426

    申请日:2007-01-17

    IPC分类号: A61M29/00

    摘要: An expandable frame for an embolic filtering device used to capture embolic debris in a body vessel includes a first half frame having a first control arm connected to a second control arm by a partial loop and a second half frame having a first control arm connected to a second control arm by a partial loop. The partial loops cooperatively form a composite loop for attachment of a filtering element which will expand in the body vessel to capture embolic debris entrained in the fluid of the vessel. The lengths and positioning of the first and second control arms of each half frame can be varied to create an expandable frame which conforms to the size and shape of the body vessel in which the filtering device is deployed. Additionally, the radius of the partial loops, along with the length of the arc of the partial loops, can be varied on each of the frames to create a composite filtering assembly that can easily adapt to the size and shape of the body vessel. Additionally, the control arms of the half frames can be disposed either proximally or distally of the composite loop to create a distinct filtering structure.

    摘要翻译: 用于捕获身体血管中的栓塞碎片的栓塞过滤装置的可膨胀框架包括:第一半框架,具有通过部分回路连接到第二控制臂的第一控制臂,以及具有连接到第二控制臂的第二控制臂的第二半框架 第二控制臂通过部分回路。 部分回路协同地形成用于附接过滤元件的复合回路,该过滤元件将在体内容器中膨胀以捕获携带在血管流体中的栓塞碎片。 可以改变每个半框架的第一和第二控制臂的长度和定位,以便产生符合过滤装置展开的身体容器的尺寸和形状的可扩张框架。 此外,部分回路的半径以及部分回路的圆弧的长度可以在每个框架上变化以产生可以容易地适应身体血管的尺寸和形状的复合过滤组件。 此外,半框架的控制臂可以在复合环路的近侧或远端设置,以产生不同的过滤结构。

    Guidewire having linear change in stiffness
    39.
    发明授权
    Guidewire having linear change in stiffness 有权
    导丝具有刚度线性变化

    公开(公告)号:US07972283B2

    公开(公告)日:2011-07-05

    申请号:US12047008

    申请日:2008-03-12

    IPC分类号: A61B5/00

    摘要: The invention is directed to a guidewire having a distal section with multiple distally tapered core segments with at least two contiguous distally tapering core segments in which the most distal tapered core segment preferably has a greater degree of taper than the proximally contiguous tapered core segment. The invention is also directed to an elongated intracorporeal device, preferably a guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal section of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that preferably is configured to produce a linear change in stiffness of the core over a longitudinal section of the device.

    摘要翻译: 本发明涉及一种具有多个具有至少两个相邻的远端锥形芯段的多个远端锥形芯部段的远端部分,其中最远端锥形芯部段优选地具有比近端相邻的锥形芯部分更大的锥度。 本发明还涉及一种细长的体内装置,优选的导丝或其一部分,其具有芯构件或类似物,多个相邻的锥形段具有锥形角,该锥形角构造成在纵向截面上产生刚度线性变化 的设备。 该装置还可以具有连续变化的锥角的芯部分,以产生曲线轮廓,该轮廓优选被配置成在装置的纵向部分上产生芯的刚度的线性变化。

    Medical electrical lead with deployable fixation features
    40.
    发明授权
    Medical electrical lead with deployable fixation features 失效
    医用电线带有可部署的固定功能

    公开(公告)号:US07890174B2

    公开(公告)日:2011-02-15

    申请号:US11421990

    申请日:2006-06-02

    IPC分类号: A61N1/36

    摘要: A medical electrical lead adapted to be at least partially implanted in a cardiac vessel includes a fixation feature operable to change from an undeployed configuration to a deployed configuration in which the fixation feature is adapted to engage an inner surface of the cardiac vessel. A tendon is disposed within a lumen of the lead and is operatively connected to the fixation feature and adapted to cause the fixation feature to change from the undeployed configuration to the deployed configuration for acute and/or chronic fixation of the lead. In one embodiment, the fixation feature includes a deflectable region of the lead which in the deployed configuration causes a surface of the lead body to engage the inner surface of the cardiac vessel. In another embodiment, the fixation feature includes a radially expandable structure for engaging the inner surface of the vessel in the deployed configuration.

    摘要翻译: 适于至少部分地植入心脏血管的医用电线包括固定特征,其可操作以从未部署的构型改变为展开构造,其中固定特征适于接合心脏血管的内表面。 腱设置在引导件的内腔中并且可操作地连接到固定特征并且适于使固定特征从未部署的构型改变为用于引导的急性和/或慢性固定的展开配置。 在一个实施例中,固定特征包括引线的可偏转区域,其在展开构型中引起引线主体的表面接合心脏血管的内表面。 在另一个实施例中,固定特征包括用于在展开构型中接合容器内表面的径向可扩展结构。