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    • 27. 发明授权
    • Network device for supporting multiple redundancy schemes
    • 用于支持多种冗余方案的网络设备
    • US06332198B1
    • 2001-12-18
    • US09591193
    • 2000-06-09
    • Corey SimonsTerrence S. PearsonChris R. NoelJoseph D. KidderBrian BranscombNicholas A. LangrindDaniel J. SullivanBarbara A. Fox
    • Corey SimonsTerrence S. PearsonChris R. NoelJoseph D. KidderBrian BranscombNicholas A. LangrindDaniel J. SullivanBarbara A. Fox
    • G06F1300
    • H04L7/0008G06F1/14H04J3/0685H04L29/06H04L41/0816H04L41/082H04L41/0859H04L41/0863H04L41/22H04L45/50H04L69/18
    • The present invention provides a method and apparatus for supporting multiple redundancy schemes in a single network device. In one network device, various redundancy schemes are supported including 1:1, 1+1, 1:N, no redundancy or a combination of redundancy schemes. In addition, the redundancy scheme or schemes for physical network device cards (i.e., universal port cards) or ports may be different from the redundancy scheme or schemes for forwarding network device cards. For example, a network manager may want to provide 1:1 or 1+1 redundancy for all universal port cards and/or ports but only 1:N redundancy for each N group of forwarding cards. As another example, the network manager may provide certain customers with 1:1 redundancy on both universal port cards (or ports) and forwarding cards to ensure that customer's network availability while providing other customers, with lower availability requirements, with various other redundancy scheme combinations, for example, 1:1, 1+1, 1:N or no redundancy for port cards or ports and 1:N or no redundancy for forwarding cards. The present invention allows customers having different availability/redundancy needs to be serviced by same network device.
    • 本发明提供一种用于在单个网络设备中支持多个冗余方案的方法和装置。 在一个网络设备中,支持各种冗余方案,包括1:1,1 + 1,1:N,无冗余或冗余方案的组合。 此外,用于物理网络设备卡(即,通用端口卡)或端口的冗余方案或方案可以不同于用于转发网络设备卡的冗余方案或方案。 例如,网络管理员可能希望为所有通用端口卡和/或端口提供1:1或1 + 1冗余,但每个N组转发卡只能提供1:N冗余。 另一个例子,网络管理员可以在两个通用端口卡(或端口)和转发卡上为某些客户提供1:1冗余,以确保客户的网络可用性,同时以更低的可用性要求为其他客户提供各种其他冗余方案组合 例如1:1,1 + 1,1:N或端口卡或端口没有冗余,1:N或转发卡的冗余。 本发明允许具有不同可用性/冗余的客户需要由相同的网络设备进行服务。
    • 30. 发明授权
    • Method for placement of a balloon dilatation catheter across a stenosis
and apparatus therefor
    • 球囊扩张导管穿过狭窄及其装置的方法
    • US5209730A
    • 1993-05-11
    • US452710
    • 1989-12-19
    • Daniel J. Sullivan
    • Daniel J. Sullivan
    • A61M25/01A61M29/02
    • A61M25/0108A61M25/09A61M25/104
    • An over-the-wire balloon catheter has a radiopaque marker thereon at a known distance from a distal end of the catheter. An elongated flexible guide wire has a plurality of longitudinally spaced radiopaque markers on a distal portion thereof, with adjacent markers on the guide wire being longitudinally spaced by a distance equal to the known distance between the distal end of the catheter and its radiopaque marker. The guide wire is advanced through an artery until one of its markers is positioned at a desired location relative to a stenosis. Subsequently, the balloon catheter is advanced over the guide wire until the radiopaque marker of the catheter is in a predetermined position relationship to the radiopaque marker of the guide wire which has aligned on the stenosis. The cooperating radiopaque markers of the guide wire and catheter thus allow the balloon member of the catheter to be positioned relative to the stenosis in a timely fashion without the need to constantly inject fluoroscopic dye to view the stenosis.
    • 超导线球囊导管在其上具有距离导管远端已知距离的不透射线的标记。 细长的柔性引导线在其远端部分上具有多个纵向间隔的不透射线的标记,引导线上的相邻标记纵向间隔距离等于导管远端与其不透射线标记之间的已知距离。 引导线通过动脉前进,直到其标记物相对于狭窄位于期望的位置。 随后,气囊导管在引导线上前进,直到导管的不透射线标记物处于与狭窄对准的导丝的不透射线标记物的预定位置关系。 因此,引导线和导管的协作不透射线的标记物允许导管的球囊构件以及时的方式相对于狭窄定位,而不需要不断地注入透视染料来观察狭窄。