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    • 3. 发明授权
    • Pulsed fiber laser cutting system for medical implants
    • 用于医疗植入物的脉冲光纤激光切割系统
    • US06521865B1
    • 2003-02-18
    • US09882590
    • 2001-06-14
    • Stephen JonesKlaus KleineBrad Whitney
    • Stephen JonesKlaus KleineBrad Whitney
    • B23K2638
    • B23K26/142A61F2/91B23K26/1438B23K26/146B23K26/1476B23K26/16B23K26/38B23K2101/06B23K2103/05B23K2103/42B23K2103/50
    • 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.
    • 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。
    • 6. 发明授权
    • Programmable mixed-mode integrated circuit architecture
    • 可编程混合模式集成电路架构
    • US5563526A
    • 1996-10-08
    • US176731
    • 1994-01-03
    • Roy A. HastingsTodd M. NealeBrad Whitney
    • Roy A. HastingsTodd M. NealeBrad Whitney
    • H03F3/72H03K19/173
    • H03F3/72H03K19/1736
    • A programmable mixed-mode circuit (180) has both digital (215,217) and analog (120,120',120") circuit portions. The digital portion (215,217) is provided by programmable digital logic. The analog portion (120,120',120") has a variety of analog circuits, including voltage references (218), high-speed comparators (208,209) and circuits (80) that are selectively configurable to provide operational amplifier or comparator functions. The analog circuits (122-125) are interconnected by programmable switch elements (128-131,160-167) so that the connection of the analog circuits to one another, to input or output pins (A0-A3,B0-B3,C0-C3) and to the digital circuitry (215,217) can be programmed.
    • 可编程混合模式电路(180)具有数字(215,217)和模拟(120,120',120“)电路部分。 数字部分(215,217)由可编程数字逻辑提供。 模拟部分(120,120',120“)具有各种模拟电路,包括电压基准(218),高速比较器(208,209)和电路(80),其可选择性地被配置为提供运算放大器或比较器功能。 模拟电路(122-125)通过可编程开关元件(128-131,160-167)互连,使得模拟电路彼此连接到输入或输出引脚(A0-A3,B0-B3,C0-C3 )和数字电路(215,217)可编程。