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107 条记录 (耗时 0.026 秒)

    Devices for percutaneous remote endarterectomy
    1.
    发明授权
    Devices for percutaneous remote endarterectomy 有权
    用于经皮远端内膜切除术的装置

    公开(公告)号：US07517352B2

    公开(公告)日：2009-04-14

    申请号：US09820084

    申请日：2001-03-27

    申请人： Michael Evans ,  Denise Demarais ,  Gwendolyn Watanabe ,  Stephen Leeflang

    发明人： Michael Evans ,  Denise Demarais ,  Gwendolyn Watanabe ,  Stephen Leeflang

    IPC分类号： A61M29/00

    CPC分类号： A61B17/3207 ,  A61B17/22 ,  A61B17/221 ,  A61B17/32002 ,  A61B17/320725 ,  A61B17/32075 ,  A61B17/320783 ,  A61B2017/00287 ,  A61B2017/00362 ,  A61B2017/320004 ,  A61B2017/320044 ,  A61B2017/320741 ,  A61M25/1002 ,  A61M25/1027 ,  A61M29/02 ,  A61M2025/1015 ,  A61M2025/1088 ,  A61M2025/109

    摘要： The present invention provides devices, systems, methods and kits for the percutaneous removal of unwanted tissue or obstructive matter from body cavities or lumens, particularly from the vasculature. Blood vessels, including the coronary, peripheral and neurovascular circulation, which are narrowed or blocked by atheromatous material or plaque are often treated with traditional endarterectomy procedures. The present invention allows the benefits of such a procedure with an intraluminal approach, particularly a percutaneous approach. Generally, the present invention provides a set of catheters or tools which are percutaneously introduceable to the site of the blockage or occlusion. The tools dissect or cut through the innermost tissue layer of the lumen to an underlying tissue layer. The innermost tissue layer is then stripped away from the underlying layer with the occlusive material thereattached. The detached tissue layer and occlusive material is then removed from the lumen; this may include additional cutting, maceration and removal through mechanical aspiration. In any case, the resulting lumen is free of obstruction.

    摘要翻译： 本发明提供用于经皮去除不想要的组织或阻塞物质的装置，系统，方法和试剂盒，所述装置，系统，方法和试剂盒用于从体腔或腔，特别是脉管系统中去除。 通常使用传统的内膜切除手术治疗包括动脉粥样硬化材料或斑块变窄或阻塞的冠状动脉，周围和神经血管循环的血管。 本发明允许使用腔内方法，特别是经皮方法的这种手术的益处。 通常，本发明提供一组导管或工具，其经皮可引入阻塞部位或闭塞部位。 该工具将内腔的最内层组织切割或切割到下面的组织层。 然后将最内侧的组织层从附近的闭塞材料剥离下来的层。 然后从管腔移除脱离的组织层和封闭材料; 这可能包括通过机械抽吸进行额外的切割，浸渍和去除。 在任何情况下，所得到的内腔没有阻塞。

    System and methods for endovascular aneurysm treatment
    3.
    发明申请
    System and methods for endovascular aneurysm treatment 有权
    血管内动脉瘤治疗的系统和方法

    公开(公告)号：US20070162106A1

    公开(公告)日：2007-07-12

    申请号：US11482503

    申请日：2006-07-07

    申请人： Michael Evans ,  Gwendolyn Watanabe ,  Amy Lee ,  Steven Herbowy

    发明人： Michael Evans ,  Gwendolyn Watanabe ,  Amy Lee ,  Steven Herbowy

    IPC分类号： A61F2/06

    CPC分类号： A61F2/958 ,  A61B17/12118 ,  A61B17/12136 ,  A61B17/12195 ,  A61B2017/1205 ,  A61F2/06 ,  A61F2/07 ,  A61F2/82 ,  A61F2/90 ,  A61F2/95 ,  A61F2002/065 ,  A61F2002/067 ,  A61F2002/077 ,  A61F2220/005 ,  A61F2220/0058 ,  A61F2230/0034 ,  A61F2230/005 ,  A61F2250/0003 ,  A61M2025/0002

    摘要： Embodiments provide methods and systems for treating aneurysms using filling structures filled with a curable medium. An embodiment of a method comprises positioning at least one double-walled filling structure across the aneurysm and filling the structure(s) with a filling medium so that an outer wall conforms to the inside of the aneurysm and an inner wall forms a generally tubular lumen to provide for blood flow. The lumen is supported with a balloon or other expandable device while and/or after filling. The pressure within the structure and/or in the space between an external wall of the structure and the aneurysm wall is monitored and a flow of the medium into the structure is controlled responsive to the pressure. The pressure can also be used to determine a filling endpoint. The medium is hardened while the lumen remains supported by the balloon. The balloon is then removed after the medium hardens.

    摘要翻译： 实施例提供了使用填充有可固化介质的填充结构来治疗动脉瘤的方法和系统。 方法的一个实施例包括将至少一个双壁填充结构定位在动脉瘤上并用填充介质填充结构，使得外壁符合动脉瘤的内部，并且内壁形成大致管状的内腔 提供血流量。 管腔在填充时和/或填充后用气囊或其他可扩张装置支撑。 监测结构内的压力和/或在结构的外壁和动脉瘤壁之间的空间中的压力，并且响应于压力控制介质流入结构的流动。 压力也可用于确定灌装终点。 当腔保持气球支撑时，介质硬化。 培养基硬化后，取出球囊。

    Method of Determining Density of Underground Formations Using Neutron-Gamma Ray Measurements
    9.
    发明申请
    Method of Determining Density of Underground Formations Using Neutron-Gamma Ray Measurements 有权
    使用中子伽马射线测量法确定地层密度的方法

    公开(公告)号：US20120166087A1

    公开(公告)日：2012-06-28

    申请号：US13262643

    申请日：2010-04-14

    申请人： Michael Evans

    发明人： Michael Evans

    IPC分类号： G06F19/00 ,  G01V5/10

    CPC分类号： G01V5/101

    摘要： A method of determining the density of an underground formation surrounding a borehole from measurement of gamma rays arising from irradiation of the formation by a nuclear source in a tool body located in the borehole, and measurement of gamma-ray flux in the tool body at two different detector spacings from the source, the method comprising determining a substantially straight-line relationship between gamma-ray flux measurements at each different spacing with respect to the density of the formation for a tool body with no standoff; determining a relationship defining the deviation with respect to tool standoff of the density determined from the measured gamma-ray flux measurements at the two different detector spacings from the density calculated from the straight line relationships; and for a given pair of gamma-ray flux measurements at the different detector spacings, determining the intersection of the relationship defining the deviation with the straight line relationship so as to indicate the density of the formation surrounding the bore-hole; wherein the source is a neutron source and the gamma rays measured in the too! body are neutron-induced gamma rays resulting from neutron irradiation of the formation.

    摘要翻译： 一种通过从位于钻孔中的工具体中的核源照射产生的伽马射线的测量来确定钻孔周围地下地层的密度的方法，以及在两个工具体中测量γ射线通量 与源不同的检测器间隔，该方法包括确定在每个不同间隔处的伽马射线通量测量值相对于没有间隙的工具主体的密度的基本上的直线关系; 确定相对于从两个不同检测器间隔处测量的伽马射线通量测量值与从直线关系计算的密度确定的密度的刀具间隔的界定的关系; 并且对于在不同检测器间距处的给定的一对伽马射线通量测量，确定限定偏差的关系与直线关系的交点，以指示围绕钻孔的地层的密度; 其中源是中子源，伽马射线也在测量中！ 身体是由地层的中子照射产生的中子诱导的γ射线。

    Method and apparatus for shifting gears in transmissions
    10.
    发明授权
    Method and apparatus for shifting gears in transmissions 有权
    用于在变速器中换档的方法和装置

    公开(公告)号：US08185280B2

    公开(公告)日：2012-05-22

    申请号：US12003004

    申请日：2007-12-19

    申请人： Michael Evans ,  Simon Conway

    发明人： Michael Evans ,  Simon Conway

    IPC分类号： G06F17/00

    CPC分类号： F16H61/462 ,  F16H47/02 ,  F16H61/0403 ,  F16H61/47 ,  F16H2061/047 ,  F16H2306/44 ,  F16H2306/48

    摘要： A method of changing from a first gear position to a second gear position of a transmission arrangement is disclosed. The arrangement includes a rotatable transmission member, a hydrostatic continuously variable transmission coupled to the transmission member and operable to rotate the transmission member at a first speed, a controller configured to control operation of the hydrostatic continuously variable transmission, and a gear apparatus coupled to the transmission member and configured to be shiftable between at least the first gear position and the second gear position. The method includes controlling the hydrostatic continuously variable transmission, using the controller, to rotate the transmission member at the first speed, and shifting the gear apparatus from the first gear position to the second gear position while the transmission member is rotating at, or converging with, the first speed.

    摘要翻译： 公开了一种从变速器装置的第一档位改变到第二档位的方法。 该装置包括可旋转的传动构件，连接到传动构件并且可操作以以第一速度旋转传动构件的静压无级变速传动装置，配置成控制静液压无级变速器的操作的控制器，以及耦合到 传动构件，并且构造成能够在至少第一档位与第二档位之间移动。 该方法包括使用控制器控制静液压无级变速器，以一速度旋转变速器构件，并且在传动构件在第一档位转动或与其同步时将齿轮装置从第一档位移动到第二档位 ，第一速。