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    • 1. 发明授权
    • Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet
    • 改变心脏瓣膜小叶附件几何,以影响小叶上最大负荷应力的位置和幅度
    • US06613086B1
    • 2003-09-02
    • US09523804
    • 2000-03-13
    • Riyad E. MoeJohn Kenneth Ryder
    • Riyad E. MoeJohn Kenneth Ryder
    • A61F224
    • A61F2/2412A61F2/2415
    • A tri-leaflet prosthetic cardiac valve with leaflets having an analytic shape in a selected position. The leaflets are connected to a valve body at attachment curves. The shape of the leaflet is selected from a set of geometries that can be represented mathematically. The attachment curve is selected to improve the durability of the tri-leaflet valve by moving the point of maximum loaded stress along the attachment curve away from the commissures. An inner wall of the valve body is given a non-circular shape near the attachment curve, the shape of the inner wall corresponding to the attachment curve. Also, a method of making a valve by selecting an analytic leaflet shape, selecting an attachment curve to improve durability of the valve by moving the point of maximum loaded stress along the attachment curve away from the commissures, and forming a valve body to support one or more leaflets, the valve body having a non-circular inner wall conforming to the attachment curve.
    • 具有在选定位置具有分析形状的小叶的三叶片假体心脏瓣膜。 传单在连接曲线处连接到阀体。 传单的形状选自可以用数学表示的一组几何形状。 选择附件曲线以通过沿连接曲线远离连合点移动最大负载应力点来提高三通阀的耐久性。 阀体的内壁在附件曲线附近被赋予非圆形形状,内壁的形状对应于附件曲线。 此外,通过选择分析小叶形状来制作阀的方法,通过沿连接曲线移动最大负载应力点而不是从连合点移动来选择附接曲线以提高阀的耐久性,并且形成阀体以支撑阀 或更多的小叶,阀体具有符合附件曲线的非圆形内壁。
    • 2. 发明授权
    • Belt steering mechanism for use with an electrophotographic imaging
system
    • 用于电子照相成像系统的皮带转向机构
    • US6134406A
    • 2000-10-17
    • US266421
    • 1999-03-11
    • Riyad E. MoeRobert E. Brenner
    • Riyad E. MoeRobert E. Brenner
    • B65G39/16G03G15/00
    • G03G15/755B65G39/16G03G2215/00156
    • A mechanism for steering a photoconductor belt in an electrophotographic imaging system is disclosed. The photoconductor belt is moved about a support roller system of the imaging system to form a continuous transport path. The photoconductor belt tends to deviate from this continuous transport path in a direction substantially perpendicular to the path. The belt steering mechanism includes a support carriage, a steering carriage, a support roller and a belt steering drive assembly. The steering roller is mounted to the steering carriage, and the steering carriage is connected to the support carriage so as to be pivotable about a steering axis. The belt steering drive assembly is operably coupled to the steering carriage to pivotally move the steering carriage about the steering axis. Upon pivotal movement of the steering carriage about the steering axis, the steering roller pivots therewith to move the photoconductor belt in a direction substantially perpendicular to the continuous transport path to reduce deviation of the photoconductor belt from the path.
    • 公开了一种用于在电摄影成像系统中转向感光体带的机构。 光电导体带围绕成像系统的支撑辊系统移动以形成连续的输送路径。 光导体带倾向于在与该路径基本垂直的方向上偏离该连续输送路径。 皮带转向机构包括支撑托架,转向托架,支撑辊和皮带转向驱动组件。 转向辊安装在转向架上,转向架与支承托架连接,以便绕转向轴线转动。 皮带转向驱动组件可操作地联接到转向滑架以使转向滑架围绕转向轴线枢转运动。 在转向滑架围绕转向轴线枢转运动时,转向辊与其一起枢转以沿着基本上垂直于连续输送路径的方向移动感光体带,以减小感光带与路径的偏离。
    • 3. 发明授权
    • Heart valve leaflet with scalloped free margin
    • 心脏瓣膜小叶带扇形游离边缘
    • US06283995B1
    • 2001-09-04
    • US09292485
    • 1999-04-15
    • Riyad E. MoeEdward J. Sarnowski
    • Riyad E. MoeEdward J. Sarnowski
    • A61F224
    • A61F2/2412
    • A heart valve prosthesis includes a molded body and a plurality of leaflets. Each leaflet includes a free margin having opposite ends and a mid-point. The opposite ends are attached to a peripheral portion of the valve. Each free margin is adjacent each other free margin to form a natural-state non-uniform gap therebetween. The gap has a maximized width adjacent the mid-point of each leaflet. Each free margin is scalloped to form a peak at the opposite ends and a mid-point peak between the opposite ends. Each peak is substantially the same height above the base.
    • 心脏瓣膜假体包括模制体和多个传单。 每张小叶都包括一个具有相对端和一个中点的自由边。 相对的端部附接到阀的周边部分。 每个自由边缘彼此相邻的自由边缘以在其间形成自然状态的不均匀间隙。 间隙在每个小叶的中点附近具有最大宽度。 每个自由边缘是扇形的,以在相对端形成一个峰,并在相对端之间形成一个中点峰。 每个峰基本上与基座上方相同的高度。
    • 9. 发明授权
    • Prosthetic heart valves with flexible post geometry
    • 具有柔性柱几何形状的假心瓣膜
    • US06478819B2
    • 2002-11-12
    • US09321325
    • 1999-05-27
    • Riyad E. Moe
    • Riyad E. Moe
    • A61F224
    • A61F2/2418
    • A stent includes an elongated stent member having a plurality of post members. Each post member includes a pair of opposite sides. A first end of each post member includes an arcuate apex interconnecting the opposite sides. A second end of each post member has an open end. The opposite sides are angled to converge toward each other at the second end. The second end of each post member is connected to an adjacent post member by a stent portion. Each opposite side and each stent portion converge at an angle of less than 90°. The opposite sides are angled to converge toward each other at the second end.
    • 支架包括具有多个柱构件的细长支架构件。 每个柱构件包括一对相对的侧面。 每个柱构件的第一端包括使相对侧相互连接的弓形顶点。 每个帖子成员的第二个端点都是开放的。 相对的两侧在第二端处成角度以彼此朝向彼此会聚。 每个柱构件的第二端通过支架部分连接到相邻的柱构件。 每个相对侧和每个支架部分以小于90°的角度收敛。 相对的两侧在第二端处成角度以彼此朝向彼此会聚。
    • 10. 发明授权
    • Heart valve leaflet with reinforced free margin
    • 心脏瓣膜小叶具有增强的自由边缘
    • US06174331B1
    • 2001-01-16
    • US09356936
    • 1999-07-19
    • Riyad E. MoeXiao Yan GongEdward Sarnowski
    • Riyad E. MoeXiao Yan GongEdward Sarnowski
    • A61F224
    • A61F2/2412A61F2/2415A61F2250/0036Y10S623/901
    • A flexible leaflet heart valve includes a base, a peripheral portion and a plurality of leaflets. Each leaflet includes a scalloped free margin having opposite ends and a mid-portion between the opposite ends. The opposite ends are attached to the peripheral portion of the valve at a first height above the base. The mid-portion of each free margin is positioned at a second height above the base, less than the first height. Each free margin is adjacent each other free margin to form a gap therebetween. Each leaflet is of a first thickness and at least a portion of each free margin is of a second thickness, greater than the first thickness. This may include extending the second thickness along the entire free margin between the opposite ends or extending the second thickness only along the mid-portion of the free margin.
    • 灵活的小叶心脏瓣膜包括基部,周边部分和多个传单。 每个小叶包括具有相对端的扇形自由边缘和相对端之间的中间部分。 相对的端部在基座上方的第一高度附接到阀的周边部分。 每个自由边缘的中间部分位于基座上方的第二高度处,小于第一高度。 每个自由边缘彼此相邻的自由边缘在其间形成间隙。 每个小叶片具有第一厚度,并且每个自由边缘的至少一部分具有大于第一厚度的第二厚度。 这可以包括沿着相对端之间的整个自由边缘延伸第二厚度,或仅沿着自由边缘的中间部分延伸第二厚度。