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    • 6. 发明授权
    • Dual-reservoir vascular access port
    • 双储层血管通路口
    • US5792104A
    • 1998-08-11
    • US761965
    • 1996-12-10
    • Lori Cone SpeckmanDavid A. Watson
    • Lori Cone SpeckmanDavid A. Watson
    • A61M5/14A61M39/02A61M5/00
    • A61M39/0208A61M2039/0211A61M2039/0214A61M2039/0226A61M5/1408
    • A subcutaneously implantable vascular access port includes a base which defines a plurality of fluid cavities separated by a dividing wall configured to provide an outlet duct for each fluid cavity, wherein the outlet ducts are staggered along the length of the dividing wall, a cap configured to receive the base and which includes a plurality of septum access apertures aligned with the fluid cavities, and a single self-sealing septum captured between the cap and the base. An outlet stem exits the base and communicates with the fluid cavities therein. The outlet stem has two prongs formed in a side-by-side configuration extending outwardly from the base. Fluid injected into a fluid cavity through the septum flows through a smooth transition region in which the cross-sectional area is smoothly reduced from the corresponding fluid cavity. A locking sleeve provides radial inward pressure upon the catheter which is slid over the outlet stem, thereby insuring that the catheter remains mounted on the outlet stem.
    • 皮下可植入的血管通路口包括基部,其限定由分隔壁分隔的多个流体空腔,该分隔壁被配置成为每个流体腔提供出口管,其中出口管沿着分隔壁的长度交错, 接收底座并且包括与流体空腔对准的多个隔膜通路孔,以及捕获在盖和基座之间的单个自密封隔膜。 出口杆离开基座并与其中的流体腔连通。 出口杆具有从基部向外延伸的并排构造形成的两个尖头。 通过隔膜注入流体腔的流体流过平滑过渡区域,其中横截面积从相应的流体腔平滑地减小。 锁定套筒在导管上提供径向向内的压力,其在出口杆上滑动,从而确保导管保持安装在出口杆上。
    • 7. 发明授权
    • Slit tip ventricular catheter and method of manufacturing same
    • 狭窄尖端心室导管及其制造方法
    • US5738666A
    • 1998-04-14
    • US678669
    • 1996-07-10
    • David A. WatsonLori Cone Speckman
    • David A. WatsonLori Cone Speckman
    • A61B1/00A61M25/00A61M27/00A61M5/00
    • A61M27/006A61B1/00135A61B1/00165A61M25/0009A61M25/0074A61M25/0068A61M25/007
    • A partially disposable instrument for use in a medical procedure includes a rigid introducer assembly and a fiber-optic endoscope having a flexible shaft which may be removably inserted through the introducer assembly. The introducer assembly permits a fluid to be flushed therethrough and about the shaft such that the fluid exits through a terminal end of the introducer assembly. The instrument may be utilized in connection with a method for positioning a catheter within a body during a medical procedure, including the steps of placing the catheter over the introducer, inserting the shaft of the endoscope through the introducer, advancing the catheter, introducer and endoscope shaft into the body as a unit, positioning the catheter within the body utilizing the fiber-optic endoscope, and removing the endoscope shaft and the introducer from the body while leaving the catheter in place. The catheter includes a slit tip capable of opening to permit the terminal end of the introducer assembly to pass therethrough such that the diameter of the slit tip, when so configured, is not significantly greater than a nominal diameter of the catheter.
    • 用于医疗过程的部分一次性器具包括刚性导引器组件和具有柔性轴的光纤内窥镜,该柔性轴可通过导引器组件可移除地插入。 导引器组件允许流体通过其中并且围绕轴被冲洗,使得流体通过导引器组件的终端排出。 该仪器可以用于在医疗过程期间将导管定位在体内的方法,包括以下步骤:将导管放置在导引器上,将内窥镜的轴插入导引器,推进导管,导入器和内窥镜 轴作为一个单元进入身体,使用光纤内窥镜将导管定位在体内,并且在将导管放置就位的同时从身体移除内窥镜轴和导引器。 导管包括能够打开以允许导引器组件的终端穿过其中的狭缝尖端,使得当构造时狭缝尖端的直径不显着大于导管的公称直径。