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132 条记录 (耗时 0.027 秒)

    Inflation device for angioplasty catheter
    81.
    发明授权
    Inflation device for angioplasty catheter 失效
    血管成形术导管的通气装置

    公开(公告)号：US4919121A

    公开(公告)日：1990-04-24

    申请号：US306047

    申请日：1989-02-06

    申请人： Mark A. Rydell ,  Rick L. Shockey

    发明人： Mark A. Rydell ,  Rick L. Shockey

    IPC分类号： A61F2/958

    CPC分类号： A61M25/10 ,  A61M25/1018 ,  A61M25/10182 ,  A61M25/104

    摘要： A hand-operated inflator device for inflating the expander on a balloon-type catheter. It comprises a molded plastic housing for retaining a syringe tube therein for containing an inflation fluid. The housing also includes an internally threaded surface. A syringe plunger having an internal longitudinal bore and a longitudinal slot formed through the wall thereof has a piston mounted on the distal end for insertion into the syringe body. Fitted into the longitudinal slot is an externally threaded member which can be raised and lowered in a radial direction by manipulation of a manuable actuable means positioned in the longitudinal bore of the plunger. When the externally threaded member is raised, its teeth mesh with the teeth on the internally threaded annular surface of the housing, but when lowered, the threaded surfaces are disengaged. When the two are engaged, the piston is advanced in the syringe tube by rotating the plunger. When the two are disengaged, the plunger may be advanced by longitudinal force applied to the end of the plunger.

    摘要翻译： 一种用于在球囊型导管上使膨胀器充气的手动充气装置。 其包括用于将注射器管保持在其中用于容纳充气流体的模制塑料外壳。 壳体还包括内螺纹表面。 具有内纵向孔和通过其壁形成的纵向槽的注射器柱塞具有安装在远端上用于插入注射器体内的活塞。 装配在纵向狭槽中的是外螺纹构件，其可以通过操纵位于柱塞的纵向孔中的可操作的致动装置而沿径向方向升高和降低。 当外螺纹构件升高时，其齿与壳体的内螺纹环形表面上的齿啮合，但是当下降时，螺纹表面脱开。 当两者接合时，通过旋转活塞将活塞推进到注射器管中。 当两者脱开时，柱塞可以通过施加到柱塞的端部的纵向力推进。

    Clad composite stent
    83.
    发明申请
    Clad composite stent 审中-公开
    包层复合支架

    公开(公告)号：US20050059889A1

    公开(公告)日：2005-03-17

    申请号：US10971742

    申请日：2004-10-22

    申请人： David Mayer

    发明人： David Mayer

    IPC分类号： A61F2/90 ,  A61F2/06

    CPC分类号： A61F2/90 ,  A61F2220/0008 ,  A61F2220/0016 ,  Y10T428/12333

    摘要： A body compatible stent is formed of multiple filaments arranged in at least two sets of oppositely directed helical windings interwoven with one another in a braided configuration. Each of the filaments is a composite including a central core and a case surrounding the core. In the more preferred version, the core is formed of a radiopaque and relatively ductile material, e.g. tantalum or platinum. The outer case is formed of a relatively resilient material, e.g. a cobalt/chromium based alloy. Favorable mechanical characteristics of the stent are determined by the case, while the core enables in vivo imaging of the stent. The composite filaments are formed by a drawn filled tubing process in which the core is inserted into a tubular case of a diameter substantially more than the intended final filament diameter. The composite filament is cold-worked in several steps to reduce its diameter, and annealed between successive cold working steps. After the final cold working step, the composite filament is formed into the desired shape and age hardened. Alternative composite filaments employ an intermediate barrier layer between the case and core, a biocompatible cover layer surrounding the case, and a radiopaque case surrounding a structural core.

    摘要翻译： 身体相容的支架由布置在至少两组相互指向的螺旋形绕组中的多根细丝形成，所述螺旋形绕组在编织结构中彼此交织。 每个长丝是包括中心芯和围绕芯的壳体的复合材料。 在更优选的版本中，芯由不透射线的和相对延性的材料形成，例如。 钽或铂。 外壳由相对弹性的材料形成，例如， 钴/铬基合金。 通过这种情况确定支架的有利的机械特性，而核心能够进行支架的体内成像。 复合长丝通过拉伸的填充管道方法形成，其中芯被插入直径基本上大于预期的最终丝直径的管状壳体中。 复合长丝在几个步骤中冷加工以减小其直径，并在连续的冷加工步骤之间退火。 在最后的冷加工步骤之后，将复合长丝形成为期望的形状并且老化硬化。 替代的复合细丝在外壳和芯之间采用中间阻挡层，围绕外壳的生物相容的覆盖层和围绕结构芯的不透射线的外壳。

    Transluminal implantation device
    86.
    发明授权
    Transluminal implantation device 失效
    腔内植入装置

    公开(公告)号：US5954729A

    公开(公告)日：1999-09-21

    申请号：US957179

    申请日：1997-10-24

    申请人： Michel Bachmann ,  Robert B. Nissels

    发明人： Michel Bachmann ,  Robert B. Nissels

    IPC分类号： A61B17/28 ,  A61B19/00 ,  A61F2/00 ,  A61F2/06 ,  A61F2/84 ,  A61M3/02 ,  A61B17/00

    CPC分类号： A61B17/29 ,  A61F2/95 ,  A61B2017/00902 ,  A61B2217/007 ,  A61F2002/3008 ,  A61F2002/9517 ,  A61F2250/0098 ,  A61M3/0279

    摘要： A device for transluminal implantation of a substantially tubular, radially expansible stent. The device includes a central tube surrounded by an outer tube axially displaceable relative to the central tube, with the radial dimensions of the tubes being such as to form an annular space therebetween capable of accommodating the stent in an unexpanded state. The outer tube is axially displaceable relative to the central tube. In one embodiment of the device, the central tube, at a distal end thereof, is provided with a section of reduced diameter at the proximal end of which there is an undercut groove forming a circumferential flange within which a proximal end of the stent rests until release of the stent by rearward displacement of the outer tube. In a modification of the device, the central tube, at its distal end, includes a sleeve slidably positioned therearound for capturing at least a proximal portion of the stent restraining the proximal portion against movement until stent deployment.

    摘要翻译： 用于腔内植入基本上管状的径向可膨胀支架的装置。 该装置包括由相对于中心管可轴向移位的外管围绕的中心管，其中管的径向尺寸可以在其间形成能够容纳未扩张状态的支架的环形空间。 外管可相对于中心管轴向移位。 在装置的一个实施例中，中心管在其远端处设置有在其近端处具有减小直径的部分，其中存在形成圆周凸缘的底切槽，支架的近端在该圆周凸缘内搁置直到 通过外管向后移位释放支架。 在装置的改型中，中心管在其远端处包括可滑动地定位在其周围的套筒，用于捕获支架的至少近端部分，该近端部分限制近端部分防止移动直到支架展开。

    Clip device for vascular catheter
    88.
    发明授权
    Clip device for vascular catheter 失效
    血管导管夹装置

    公开(公告)号：US5830183A

    公开(公告)日：1998-11-03

    申请号：US885533

    申请日：1997-06-30

    申请人： Sarah J. Krieger

    发明人： Sarah J. Krieger

    IPC分类号： A61M25/00 ,  A61M25/02 ,  A61M25/18 ,  A61M29/00

    CPC分类号： A61M25/02 ,  A61M2025/024 ,  A61M2025/0246 ,  A61M25/002 ,  Y10T24/14 ,  Y10T24/3428 ,  Y10T24/44752

    摘要： A vascular dilatation catheter including an elongated catheter shaft having a distal and a proximal end and a first lumen extending therethrough fluid connection with a distally located balloon and a second lumen capable of receiving a guidewire is provided with a clip device attached about a proximal portion of the catheter shaft and adapted to releasibly secure the catheter shaft in a coiled configuration between uses.

    摘要翻译： 一种血管扩张导管，其包括具有远端和近端的细长导管轴和延伸穿过与远侧定位球囊的流体连接的第一腔和能够接收导丝的第二腔，设置有夹持装置， 导管轴并且适于将导管轴可释放地固定在使用之间的线圈构造中。

    Process for manufacturing braided composite prosthesis
    89.
    发明授权
    Process for manufacturing braided composite prosthesis 失效
    编织复合假体的制造工艺

    公开(公告)号：US5758562A

    公开(公告)日：1998-06-02

    申请号：US640062

    申请日：1996-04-30

    申请人： Paul J. Thompson

    发明人： Paul J. Thompson

    IPC分类号： A61B19/00 ,  A61F2/00 ,  A61F2/06 ,  A61F2/90 ,  A61L27/00 ,  D04C1/06 ,  D04C1/00

    CPC分类号： A61F2/06 ,  A61F2/90 ,  A61F2/95 ,  D04C1/06 ,  A61B90/39 ,  A61F2/07 ,  A61F2002/072 ,  A61F2220/0008 ,  A61F2220/0016 ,  A61F2220/0075 ,  A61F2240/001 ,  D10B2509/06

    摘要： A process is disclosed for manufacturing a prothesis for intraluminal implantation. The prosthesis is formed with a flexible tubular interbraided structure of metal or polymeric monofilaments, and polymeric multifilament yarns, and can be elastically deformed to reduce its diameter through axial elongation. The monofilaments and multifilament yarns are wound on a mandrel arranged in axially spaced apart helices, concentric on a common central axis of the prosthesis. The monofilaments are selectively shaped before their interbraiding with the multifilament yarns, either by an age-hardening or other heat-setting stage while wound on a mandrel, or by a cold-working stage that controllably plastically deforms the strands. The shaped structural strands cooperate to impart to the prosthesis its nominal shape and resilience. The textile strands are interbraided with the structural strands to provide a sheeting that occupies interstices between adjacent structural strands, to reduce permeability and thereby enhance the utility of the prosthesis as a vascular graft. An alternative process employs elastically and plastically deformable structural strands, selectively plastically deformed by cold-working as they are moved toward a station for interbraiding with textile strands to form the prosthesis.

    摘要翻译： 公开了一种用于制造管腔内植入的假体的方法。 假体由金属或聚合单丝的柔性管状插入结构和聚合复丝纱线形成，并且可以通过轴向伸长而弹性变形以减小其直径。 单丝和复丝纱缠绕在轴向间隔开的螺旋上的心轴上，同心于假体的共同中心轴线。 通过在缠绕在心轴上的时效硬化或其它热定型阶段，或者通过可控制地塑性地使股线变形的冷加工阶段，单丝在与复丝纱线相互交织之前被选择性地成形。 成形的结构丝线协作以赋予假体其标称形状和弹性。 纺织股线与结构股线接合以提供占据相邻结构股线之间间隙的片材，以减少渗透性，从而增强假体作为血管移植物的效用。 一种替代方法采用弹性和塑性变形的结构股，当它们朝向工位移动以与织物股线相互作用以形成假体时，通过冷加工选择性塑性变形。