Artificial heart valve
    21.
    发明授权
    Artificial heart valve 失效
    人造心脏瓣膜

    公开(公告)号:US5500016A

    公开(公告)日:1996-03-19

    申请号:US307623

    申请日:1994-09-20

    申请人: John Fisher

    发明人: John Fisher

    IPC分类号: A61F2/24

    CPC分类号: A61F2/2412

    摘要: A flexible leaflet heart valve (1), to replace natural aortic or pulmonary valves of the heart, includes a frame (3) and flexible leaflets (2) attached to the frame (3). Each flexible leaflet (2) forms part of a surface of revolution having its axis of revolution substantially orthogonal to the direction of blood flow through the valve (1). The valve (1) has improved opening characteristics under low flow conditions, and allows a large range of geometries for the same size valve.

    摘要翻译: PCT No.PCT / GB93 / 00568 Sec。 371日期1994年9月20日 102(e)1994年9月20日PCT 1993年3月19日PCT公布。 公开号WO93 / 18721 日期:1993年9月30日。用于取代心脏的主动脉或肺动脉瓣的柔性瓣叶心脏瓣膜(1)包括附接到框架(3)的框架(3)和柔性小叶(2)。 每个柔性小叶(2)形成其旋转轴线基本上与通过阀(1)的血流方向正交的旋转表面的一部分。 阀门(1)在低流量条件下具有改进的开启特性,并允许相同尺寸的阀门具有大范围的几何形状。

    Compact aquarium filter
    22.
    发明授权
    Compact aquarium filter 失效
    紧凑型水族箱过滤器

    公开(公告)号:US5002660A

    公开(公告)日:1991-03-26

    申请号:US203671

    申请日:1988-06-07

    IPC分类号: A01K63/04

    CPC分类号: A01K63/045

    摘要: An aquarium filter is disclosed that provides an overflow window for indicating a blocked filter cartridge. The filter cartridge extends across the full width of the filter box and includes an overflow weir, or lip. The overflow weir forms part of the filter structure and controls the flow of water when the filter cartridge is blocked. Since the filter cartridge extends across the width of the filter box, the size of the filter for a given flow rate is reduced. The filter provides the feature of overflow indication in a more compact and efficient structure than otherwise possible.

    摘要翻译: 公开了一种水族箱过滤器,其提供用于指示堵塞的过滤器滤芯的溢出窗口。 过滤器滤芯延伸穿过过滤器箱的整个宽度,并包括溢流堰或唇缘。 溢流堰形成过滤器结构的一部分,并控制滤芯堵塞时的水流。 由于过滤器滤芯延伸过滤器盒的宽度,因此减小了给定流量的过滤器的尺寸。 过滤器以比其他方式更紧凑和有效的结构提供溢出指示的特征。

    Calibration method and apparatus for tonometers
    23.
    发明授权
    Calibration method and apparatus for tonometers 失效
    眼压计校准方法及仪器

    公开(公告)号:US4834105A

    公开(公告)日:1989-05-30

    申请号:US118159

    申请日:1987-11-09

    IPC分类号: A61B3/16

    CPC分类号: A61B3/165

    摘要: A tonometer is described for measuring the intra-ocular pressure of an eye in which a pulse of fluid is projected towards the cornea of the eye to distort the corneal surface by the pressure of the pulse, the distortion in the corneal surface being detected by a change in the reflection of light directed onto the cornea. A fluid delivery system (36, 44, 48) leads to an outlet through which the fluid pulse is applied to the cornea, and a branch (54) leads to a pressure measuring chamber (52), containing a transducer (170) which produces an electrical signal whose value depends on the pressure in the branch. A flow restrictor is removably fitted in the branch (54) and signal processing means (176, 178, 180) (the gain and rise time of which are adjustable by (182) or (186)), is supplied with the output from the transducer. Adjustment of 182, and 186 enable the electrical signal output of the processing means to be adjusted, for calibration. Calibration of the instrument is achieved by selecting an appropriately dimensioned restrictor and by adjusting the gain, and where appropriate the time constant, of the signal processing means, so that the plot of a pressure-time signal curve of the processing means output corresponds to the pressure-time curve for such an instrument when set to operate in line with a clinical standard.

    Composition and method for making fuel cell collector plates with improved properties
    27.
    发明授权
    Composition and method for making fuel cell collector plates with improved properties 失效
    用于制造具有改进性能的燃料电池集电板的组合物和方法

    公开(公告)号:US07413685B2

    公开(公告)日:2008-08-19

    申请号:US11807714

    申请日:2007-05-29

    IPC分类号: H01B1/00

    摘要: A method and composition is disclosed for making conductive flow field separator plates having reduced resistivity, lower weight and lower cost. The plates are made by blending from about 0.5 wt % to about 40 wt %, preferably from about 1 wt % to about 30 wt %, most preferably from about 5 wt % to about 20 wt %, of the liquid crystal polymer; from about 0.5 wt % to about 40 wt %, preferably from about 1 wt % to about 30 wt %, most preferably from about 5 wt % to about 20 wt % of the poly(styrene-co-maleic anhydride); and from about 20 wt % to about 99 wt %, preferably from about 60 wt % to about 98 wt %, most preferably from about 70 wt % to about 90 wt % of the conductive filler. The blend is then moulded to form the conductive flow field separator plates.

    摘要翻译: 公开了用于制造具有降低的电阻率,较低重量和较低成本的导电流场分离器板的方法和组合物。 该板通过混合液晶聚合物的约0.5重量%至约40重量%,优选约1重量%至约30重量%,最优选约5重量%至约20重量% 聚(苯乙烯 - 共 - 马来酸酐)的约0.5重量%至约40重量%,优选约1重量%至约30重量%,最优选约5重量%至约20重量% 和约20重量%至约99重量%,优选约60重量%至约98重量%,最优选约70重量%至约90重量%的导电填料。 然后将共混物模制以形成导电流场分离器板。

    Cyclic acetal biomaterials
    28.
    发明申请
    Cyclic acetal biomaterials 有权
    环状缩醛生物材料

    公开(公告)号:US20070059337A1

    公开(公告)日:2007-03-15

    申请号:US11513401

    申请日:2006-08-31

    IPC分类号: A61F2/00 A61K31/765

    摘要: A novel class of Cylic Acetal biomaterials (CABs) based on a cyclic acetal unit is disclosed and claimed by Applicants. Two novel biomaterials suitable for use in a variety of biological applications including in the orthopedic field for joint and cartilage replacement and/or repair, and bone cement. The biomaterials are comprised of either a network of monomers of 5-ethyl-5-(hydroxymethyl)-β,β-dimethyl-1,3-dioxane-2-ethanol diacrylate (EHD) and a hydrogel comprised of EHD and poly(ethylene glycol) diacrylate (PEG-EHD).

    摘要翻译: 申请人公开并要求保护基于环状缩醛单元的新型乙酰乙缩醛生物材料(CAB)。 适用于多种生物应用的两种新型生物材料,包括用于关节和软骨置换和/或修复的骨科领域,以及骨水泥。 生物材料由5-乙基-5-(羟甲基)-β,β-二甲基-1,3-二恶烷-2-乙醇二丙烯酸酯(EHD)和由EHD和聚(乙烯)组成的水凝胶的网络组成 乙二醇)二丙烯酸酯(PEG-EHD)。

    Simulated airbag squib interface
    29.
    发明申请
    Simulated airbag squib interface 审中-公开
    模拟气囊爆管界面

    公开(公告)号:US20060271259A1

    公开(公告)日:2006-11-30

    申请号:US11487025

    申请日:2006-07-17

    IPC分类号: E05F15/00

    摘要: An electronic circuit connects to an airbag crash controller in a way which is functionally identical to an airbag squib. Based on a squib fire signal from the controller, the circuit provides an activation signal indicating airbag deployment and also allows communication with an airbag crash controller by creating an open circuit that is detected by the airbag crash controller as an airbag fault. Each functional part of the circuit includes an isolator to protect the airbag crash controller.

    摘要翻译: 电子电路以与气囊爆管功能相同的方式连接到气囊碰撞控制器。 基于来自控制器的爆管信号,电路提供指示安全气囊展开的启动信号,并且还允许通过由气囊碰撞控制器检测为气囊故障的开路产生与气囊碰撞控制器的通信。 电路的每个功能部分包括一个隔离器,用于保护气囊碰撞控制器。

    Sealant Plug Delivery Methods
    30.
    发明申请
    Sealant Plug Delivery Methods 审中-公开
    密封胶塞送货方式

    公开(公告)号:US20050228309A1

    公开(公告)日:2005-10-13

    申请号:US10711330

    申请日:2004-09-10

    摘要: A bioabsorbable sealant plug that expands in response to contact with moisture in a mammalian body is optimally positioned in a biopsy tract to seal the biopsy tract when a biopsy procedure is completed. In a first method, the leading end of the sealant plug is advanced through the lumen of a coaxial needle by a plunger until a leading end of a supporting leg abuts the patient's skin surface. A second method is performed with a pistol-shaped tool having a trigger that enables adjustment of the plunger. A third embodiment includes a plunger having a bifurcated end that grasps the plug. A fourth embodiment has a turning nut that causes compression of a gasket that clamps down on the plug. A supporting rod and coaxial needle are in parallel relation to one another in a fifth embodiment.

    摘要翻译: 当活组织检查程序完成时,生物可吸收的密封塞可以响应于与哺乳动物身体中的水分接触而膨胀,被最佳地定位在活检管道中以密封活检管道。 在第一种方法中,密封塞的前端通过柱塞前进通过同轴针的内腔,直到支撑腿的前端抵靠患者的皮肤表面。 第二种方法是用具有能够调节柱塞的触发器的手枪式工具进行的。 第三实施例包括具有抓住塞子的分叉端的柱塞。 第四实施例具有转动螺母,该转动螺母使得在插头上夹紧的衬垫压缩。 在第五实施例中,支撑杆和同轴针彼此平行。