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7 条记录 (耗时 0.014 秒)

    Pulsed fiber laser cutting system for medical implants
    6.
    发明授权
    Pulsed fiber laser cutting system for medical implants 失效
    用于医疗植入物的脉冲光纤激光切割系统

    公开(公告)号：US06927359B2

    公开(公告)日：2005-08-09

    申请号：US10369358

    申请日：2003-02-18

    申请人： Klaus Kleine ,  Stephen Jones ,  Brad Whitney ,  Yu-Chun Ku ,  Jason Fox

    发明人： Klaus Kleine ,  Stephen Jones ,  Brad Whitney ,  Yu-Chun Ku ,  Jason Fox

    IPC分类号： A61F2/90 ,  B23K26/16 ,  B23K26/38

    CPC分类号： B23K26/18 ,  A61F2/91 ,  B23K26/06 ,  B23K26/0622 ,  B23K26/064 ,  B23K26/08 ,  B23K26/123 ,  B23K26/14 ,  B23K26/142 ,  B23K26/1436 ,  B23K26/1438 ,  B23K26/146 ,  B23K26/1476 ,  B23K26/16 ,  B23K26/38 ,  B23K2101/06 ,  B23K2103/05 ,  B23K2103/42 ,  B23K2103/50

    摘要： An improved expandable stent for implantation in a body lumen, such as an artery, and an improved method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cut cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements, the elements having a rectangular cross-section from cut-to-cut. The individual radially expandable cylindrical elements are disposed in an undulating pattern. The stent is manufactured by direct laser cutting from a single metal tube using a finely focused laser beam originating from a diode pumped fiber laser with an external pulse generator and passing through a coaxial gas jet structure to impinge on the working surface of the tube as the linear and rotary velocity of the tube is precisely controlled. To optimize the cut, the laser parameters may be adjusted and/or the laser pulse may be shaped.

    摘要翻译： 用于植入体腔（例如动脉）中的改进的可扩张支架，以及用于使其从单一管道制成的改进方法。 支架由多个径向可膨胀的切割的圆柱形元件组成，其大体上在公共轴线上对齐并由一个或多个互连元件互连，所述元件具有从切割到切割的矩形横截面。 各个可径向扩张的圆柱形元件以波形图案设置。 支架通过使用来自具有外部脉冲发生器的二极管泵浦光纤激光器的精细聚焦激光束从单个金属管直接激光切割制造，并且穿过同轴气体射流结构以撞击管的工作表面 管的线性和旋转速度被精确控制。 为了优化切割，可以调整激光参数和/或激光脉冲的形状。

    Apparatus and method for electropolishing surfaces
    7.
    发明授权
    Apparatus and method for electropolishing surfaces 有权
    电抛光表面的装置和方法

    公开(公告)号：US06599415B1

    公开(公告)日：2003-07-29

    申请号：US09846114

    申请日：2001-04-30

    申请人： Yu-Chun Ku ,  Ryan John Santos

    发明人： Yu-Chun Ku ,  Ryan John Santos

    IPC分类号： C25F300

    CPC分类号： C25F7/00 ,  C25F3/16

    摘要： A method and apparatus for electropolishing a workpiece without immersing the workpiece in a bath of electrolytic solution. The workpiece is held in an atmospheric environment, while electrolytic solution is discharged from a reservoir in the form of a plurality of jet streams onto the surface of the workpiece. A voltage difference is applied across the workpiece and the jet streams, thereby inducing a current to flow, between the workpiece acting as anode and the jet streams acting as cathode. The workpiece may be rotated about an axis and moved linearly along the same axis while the jet streams of electrolytic solution are discharged onto the workpiece. Anodic dissolution causes polishing of the workpiece surface. The electrolytic solution may be collected after discharge and recycled back into the reservoir, after being filtered and cooled.

    摘要翻译： 一种用于在不将工件浸入电解液浴的情况下电抛光工件的方法和装置。 工件被保持在大气环境中，而电解液从多个喷射流形式的储存器排出到工件的表面上。 在工件和喷射流之间施加电压差，从而在作为阳极的工件和作为阴极的射流之间引起电流流动。 工件可以围绕轴线旋转并且沿着相同的轴线线性移动，同时电解溶液的喷射流被排出到工件上。 阳极溶解导致工件表面的抛光。 电解液可以在排放后收集，并在过滤和冷却后循环回到储存器中。