Shunt valve for controlling siphon effect
    1.
    发明授权
    Shunt valve for controlling siphon effect 有权
    用于控制虹吸效果的分流阀

    公开(公告)号:US09056181B2

    公开(公告)日:2015-06-16

    申请号:US13765386

    申请日:2013-02-12

    申请人: David A. Watson

    发明人: David A. Watson

    IPC分类号: A61M27/00 A61B17/00

    CPC分类号: A61M27/006 A61B17/00

    摘要: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.

    摘要翻译: 用于控制脑积水的改进的分流阀提供生理大气参考的虹吸控制,其不受上覆组织的不利影响。 该阀包括一个或多个多孔外部防污膜,以保护流量控制膜免受外部机械组织压力,同时允许流动控制可移动膜的自由运动并且允许正入口压力来调节通过改进的流体分流阀 发明。 多孔膜被配置为防止组织向内生成膜孔,同时允许足够的流体流过,以便不会阻止活动膜的运动。

    INGROWTH PREVENTING INDWELLING CATHETER ASSEMBLY
    4.
    发明申请
    INGROWTH PREVENTING INDWELLING CATHETER ASSEMBLY 失效
    防止污染物导管组件的生产

    公开(公告)号:US20100179471A1

    公开(公告)日:2010-07-15

    申请号:US12730434

    申请日:2010-03-24

    申请人: David A. Watson

    发明人: David A. Watson

    IPC分类号: A61M25/00

    摘要: A surgically implantable delivery or drainage catheter assembly includes a porous fiber membrane that is permeable to the intended drainage or delivery fluid, yet has an outer surface morphology and porosity that prevents the ingrowth of tissue. The porous fiber membrane is created using a phase-inversion process which is controlled to select a desired porosity. A reinforcement member is also disposed within the porous fiber membrane.

    摘要翻译: 手术可植入的输送或排出导管组件包括对预期的排水或输送流体是可渗透的,但具有防止组织向内生长的外表面形态和孔隙度的多孔纤维膜。 多孔纤维膜是使用相转化法制造的,该方法被控制以选择所需的孔隙率。 加强构件也设置在多孔纤维膜内。

    RADIOPAQUE SUPER-ELASTIC INTRAVASCULAR STENT
    5.
    发明申请
    RADIOPAQUE SUPER-ELASTIC INTRAVASCULAR STENT 有权
    放射性超弹性静脉内支架

    公开(公告)号:US20100152837A1

    公开(公告)日:2010-06-17

    申请号:US12709734

    申请日:2010-02-22

    IPC分类号: A61F2/82

    摘要: The intravascular stent is formed from a composite wire includes an inner core of radiopaque metal, a polymer layer coaxially disposed about the inner core, and an outer metal layer coaxially disposed about the polymer layer. The intermediary polymer layer acts as a barrier material between the inner core and the outer sheath, so that the inner core and outer sheath may be made of dissimilar metallic layers, and the intermediary polymer layer will prevent a galvanic reaction between the inner core and the peripheral metal layer. The intravascular stent has ends flared radially outwardly to prevent radially and longitudinally inward deformation of the ends of the stent when the stent is disposed in a desired location in a patient's vasculature.

    摘要翻译: 血管内支架由复合线材形成,复合线材包括不透射线金属的内芯,围绕内芯同轴设置的聚合物层,以及围绕聚合物层同轴设置的外部金属层。 中间聚合物层用作内芯和外护套之间的阻挡材料,使得内芯和外护套可以由不同的金属层制成,并且中间聚合物层将防止内芯和外护套之间的电偶反应 外围金属层。 血管内支架具有径向向外张开的端部,以防止当支架置于患者脉管系统中的所需位置时,支架端部的径向和纵向向内变形。

    SUPPORT APPARATUS
    7.
    发明申请
    SUPPORT APPARATUS 审中-公开
    支持装置

    公开(公告)号:US20090107937A1

    公开(公告)日:2009-04-30

    申请号:US12257789

    申请日:2008-10-24

    IPC分类号: A47B96/02

    CPC分类号: A47B23/02

    摘要: The present invention is a support apparatus or side table that includes an insert portion retractably connected to a shelf portion. The insert portion being removably engaged with an object to provide support to the shelf portion for resting items thereon. The insert portion includes a retractable mechanism to facilitate nesting of the insert portion within the shelf portion. In operation, the insert portion is removably engaged with the object to facilitate resting of objects on or within the shelf portion.

    摘要翻译: 本发明是一种支撑装置或侧台,其包括可缩回地连接到搁架部分的插入部分。 插入部分可拆卸地与物体接合,以便为搁架部件提供支撑以用于其上的静止物品。 插入部分包括可伸缩机构,以便于嵌入部分在搁板部分内嵌套。 在操作中,插入部分可移除地与物体接合,以便于将物体放置在搁板部分上或内部。

    Dual-reservoir vascular access port
    10.
    发明授权
    Dual-reservoir vascular access port 失效
    双储层血管通路口

    公开(公告)号:US5792104A

    公开(公告)日:1998-08-11

    申请号:US761965

    申请日:1996-12-10

    IPC分类号: A61M5/14 A61M39/02 A61M5/00

    摘要: 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.

    摘要翻译: 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。