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49 条记录 (耗时 0.048 秒)

    Method of descaling metallic devices
    22.
    发明授权
    Method of descaling metallic devices 有权
    除锈金属器件的方法

    公开(公告)号：US08192554B2

    公开(公告)日：2012-06-05

    申请号：US13232178

    申请日：2011-09-14

    申请人： Sanjay Shrivastava

    发明人： Sanjay Shrivastava

    IPC分类号： B08B3/00 ,  B08B3/10 ,  C23G1/00

    CPC分类号： C23G1/08 ,  A61F2/82 ,  B08B3/12 ,  C11D3/046 ,  C11D11/0029 ,  C11D11/007 ,  C23G1/02 ,  C23G1/10 ,  C23G1/106

    摘要： Methods are provided for descaling metallic component devices such as stents. The devices or components are cleaned under ultrasound in a cleaning solution of ammonium hydrogen fluoride at a temperature within a range of about 60° to 80° C., then rinsed at that temperature with an aqueous rinse containing a nonionic surfactant and rinsed again with purified water.

    摘要翻译： 提供了诸如支架之类的金属成分装置的除垢方法。 将装置或组件在约60℃至80℃的温度范围内在氟化氢铵的清洁溶液中超声波清洗，然后用含有非离子表面活性剂的含水漂洗液在该温度下漂洗，再次用纯化的 水。

    APPARATUS FOR FILTERING A BODY LUMEN
    23.
    发明申请
    APPARATUS FOR FILTERING A BODY LUMEN 有权
    用于过滤身体的装置的装置

    公开(公告)号：US20120083823A1

    公开(公告)日：2012-04-05

    申请号：US13140369

    申请日：2009-12-16

    申请人： Sanjay Shrivastava ,  Milisav Obradovic ,  Nie Tang ,  Rainer Bregulla ,  Michael L. Green

    发明人： Sanjay Shrivastava ,  Milisav Obradovic ,  Nie Tang ,  Rainer Bregulla ,  Michael L. Green

    IPC分类号： A61F2/01

    CPC分类号： A61F2/01 ,  A61F2002/011 ,  A61F2002/016 ,  A61F2002/8486 ,  A61F2230/0006 ,  A61F2230/008 ,  A61F2250/0067

    摘要： An implantable lumen filter (200) is described. The implantable lumen filter includes a body (202) having a proximal end (202a), a distal end (202b), and a generally tapered outer surface (204). The outer surface is formed by a plurality of struts (206a, 206b). The plurality of struts forms a plurality of apertures (210). The apertures are dimensioned to inhibit and/or to lyse particulates of a selected size from passing through the apertures. The body (202) is transitionable from a collapsed state toward a deployed state. The implantable lumen filter includes an engaging portion (220) having a proximal end (220a) and a distal end (220b). The proximal end of the engaging portion is connected to a distal end of the body. The engaging portion has a generally annular shape and is configured to engage an inner surface of a body lumen.

    摘要翻译： 描述可植入管腔过滤器（200）。 可植入管腔过滤器包括具有近端（202a），远端（202b）和大致锥形的外表面（204）的主体（202）。 外表面由多个支柱（206a，206b）形成。 多个支柱形成多个孔（210）。 孔的尺寸被设计成抑制和/或裂解选定尺寸的颗粒通过孔。 主体（202）可以从折叠状态向展开状态转换。 可植入管腔过滤器包括具有近端（220a）和远端（220b）的接合部分（220）。 接合部分的近端连接到主体的远端。 接合部分具有大致环形的形状并且构造成接合体腔的内表面。

    VASCULAR REMODELING DEVICE
    24.
    发明申请
    VASCULAR REMODELING DEVICE 有权
    血管再造装置

    公开(公告)号：US20110184452A1

    公开(公告)日：2011-07-28

    申请号：US13016855

    申请日：2011-01-28

    申请人： Andy Huynh ,  Masoud Molaei ,  Victoria Schuman ,  Sanjay Shrivastava ,  Earl Slee ,  Quang Tran

    发明人： Andy Huynh ,  Masoud Molaei ,  Victoria Schuman ,  Sanjay Shrivastava ,  Earl Slee ,  Quang Tran

    IPC分类号： A61M29/00

    CPC分类号： A61B17/12118 ,  A61B17/1214 ,  A61B17/12172 ,  A61F2/856 ,  A61F2/86 ,  A61F2002/823 ,  A61F2002/9528 ,  A61F2002/9534 ,  A61F2230/0063 ,  A61F2230/0071

    摘要： An intraluminal apparatus including a catheter and device is positionable at a junction of afferent and efferent vessels of a bifurcation having an aneurysm. After positioning the device to substantially conform the device to the shape of the junction, the device acts as a scaffolding to inhibit herniation of objects out of the aneurysm and the device permits perfusion to the efferent vessels. Positioning the device may include deployment and optional release from a catheter. Embolic material may be inserted in the aneurysm before or after positioning the device. The device may have a proximal end, a distal end, and a plurality of filaments extending between and coupled at the proximal end and the distal end. The device may include a central filament configured to reshape the device. The distal end of the device may include a covering. The device may be football shaped, pumpkin shaped, or acorn shaped.

    摘要翻译： 包括导管和装置的管腔内装置可定位在具有动脉瘤的分叉的传入和传出血管的交界处。 在将装置定位成使得装置基本上符合接合部的形状之后，该装置用作支架以抑制物体从动脉瘤的突出，并且该装置允许灌注到输出血管。 定位装置可以包括从导管部署和任选的释放。 栓塞材料可以在设备定位之前或之后插入动脉瘤中。 该装置可以具有近端，远端以及在近端和远端处延伸并且在近端和远端处连接的多根细丝。 该装置可以包括被配置成重塑该装置的中心细丝。 设备的远端可以包括覆盖物。 该装置可以是足球形，南瓜形或橡胶形。

    Endoprostheses for peripheral arteries and other body vessels
    26.
    发明授权
    Endoprostheses for peripheral arteries and other body vessels 有权
    外周动脉和其他体内血管的假体

    公开(公告)号：US07867273B2

    公开(公告)日：2011-01-11

    申请号：US11769410

    申请日：2007-06-27

    申请人： Jeffrey Pappas ,  Sanjay Shrivastava

    发明人： Jeffrey Pappas ,  Sanjay Shrivastava

    IPC分类号： A61F2/06

    CPC分类号： A61F2/91 ,  A61F2/915 ,  A61F2002/91525 ,  A61F2002/91533 ,  A61F2002/9155 ,  A61F2002/91575

    摘要： An endoprostheses for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen includes a plurality of elongate strut members spaced apart and extending along a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley. At least one flexible connecting link connects each elongate strut member to an adjacent elongate strut member. The elongate strut members and connecting links forming a generally tubular stent body having a first delivery diameter and a second implanted diameter. The positioning of the connecting links along the stent body produces desired stent performance characteristics.

    摘要翻译： 用于植入体腔（例如冠状动脉，外周动脉或其他体腔）的内用假体包括间隔开并沿着纵向轴线延伸的多个细长支柱构件，每个细长的支柱构件具有多个交替的峰和谷 。 至少一个柔性连接连杆将每个细长的支柱构件连接到相邻的细长支柱构件。 细长的支柱构件和连接构件形成具有第一输送直径和第二注入直径的大体上管状的支架体。 沿着支架主体的连接件的定位产生期望的支架性能特征。

    Methods of crimping expandable medical devices
    27.
    发明授权
    Methods of crimping expandable medical devices 有权
    压缩可扩张医疗器械的方法

    公开(公告)号：US07828916B2

    公开(公告)日：2010-11-09

    申请号：US11781180

    申请日：2007-07-20

    申请人： Sanjay Shrivastava

    发明人： Sanjay Shrivastava

    IPC分类号： C22F1/10

    CPC分类号： A61F2/958 ,  A61F2002/9522

    摘要： Disclosed are methods for crimping a medical device, such as a stent, wherein the medical device is formed of a superelastic alloy. A method for crimping a medical device includes cooling the stent until the alloy becomes martensitic, allowing the stent to warm after cooling, crimping the stent with a crimping apparatus.

    摘要翻译： 公开了用于卷曲诸如支架的医疗装置的方法，其中医疗装置由超弹性合金形成。 用于压接医疗装置的方法包括冷却支架，直到合金变成马氏体，允许支架在冷却之后加热，用压接装置卷曲支架。

    Method of manufacture of a heart valve support frame
    28.
    发明授权
    Method of manufacture of a heart valve support frame 有权
    心脏瓣膜支架的制造方法

    公开(公告)号：US07318278B2

    公开(公告)日：2008-01-15

    申请号：US11028878

    申请日：2005-01-03

    申请人： Xiangyang Zhang ,  Melissa Denton ,  Sanjay Shrivastava ,  Pranav Desai

    发明人： Xiangyang Zhang ,  Melissa Denton ,  Sanjay Shrivastava ,  Pranav Desai

    IPC分类号： B21D51/16 ,  A61F2/24

    CPC分类号： A61F2/2418 ,  A61F2/2412 ,  A61F2/2415 ,  A61F2220/0075 ,  Y10T29/49405 ,  Y10T29/49865 ,  Y10T29/49885 ,  Y10T29/49895 ,  Y10T29/49904 ,  Y10T29/49906 ,  Y10T29/49995

    摘要： Methods for forming a support frame for flexible leaflet heart valves from a starting blank include converting a two-dimensional starting blank into the three-dimensional support frame. The material may be superelastic, such as NITINOL, and the method may include bending the 2-D blank into the 3-D form and shape setting it. A merely elastic material such as ELGILOY may be used and plastically deformed in stages, possibly accompanied by annealing, to obtain the 3-D shape. Alternatively, a tubular blank could be formed to define a non-tubular shape, typically conical. A method for calculating the precise 2-D blank shape is also disclosed. A mandrel assembly includes a mandrel and ring elements for pressing the blank against the external surface of the mandrel prior to shape setting.

    摘要翻译： 从起始毛坯形成用于柔性小叶心脏瓣膜的支撑框架的方法包括将二维起始毛坯转换成三维支撑框架。 该材料可能是超弹性的，例如NITINOL，并且该方法可以包括将2-D坯料弯曲成3-D形状并使其成形。 可以使用诸如ELGILOY的仅弹性材料并且可能伴随着退火而逐级塑性变形以获得3-D形状。 或者，可以形成管状坯料以限定非管状形状，通常为圆锥形。 还公开了一种用于计算精确的2-D空白形状的方法。 心轴组件包括心轴和环形元件，用于在形状设定之前将坯料压靠在心轴的外表面上。