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    • 74. 发明授权
    • Dry suction regulator blood collection device
    • 干式吸力调节器采血装置
    • US5807358A
    • 1998-09-15
    • US472144
    • 1995-06-07
    • Steve A. HerweckTheodore KarwoskiDavid Cross
    • Steve A. HerweckTheodore KarwoskiDavid Cross
    • A61M1/00A61M1/36
    • A61M1/3627A61M1/0013A61M1/0031A61M1/0033
    • A blood collection device has a modular suction regulator assembly in the form of an adjustable negative pressure relief valve which controls the level of suction in a collection chamber by admitting air to a short bleed-in passage proximate to a suction connection. The modular assembly is a canister which drops into a receptacle oriented transversely in the collection vessel, and defines a laterally-directed intake manifold which resists blockage. The intake passes centrally through the canister along a path spanned by a filter, past a hat-shaped poppet supported on a compression spring. Fluted and threaded members control the scale and range of poppet response so that the assembly may be calibrated before installation. A face plate covers the installed canister, and radial vanes in the intake manifold double as gripping elements for manual adjustment of the assembly. A bellows meter provides refined suction resolution by linearly advancing across an oblique or curved reference line. Other improvements include a compact and balanced layout of suction canister, seal chamber and collection chamber, and a rigid handle assembly having five faces integral with the device.
    • 血液采集装置具有可调式负压释放阀形式的模块式抽吸调节器组件,其通过将空气接近靠近抽吸连接处的短的通入通道来控制收集室中的抽吸水平。 模块化组件是一种罐,该罐可以放入收集容器中横向定向的容器中,并限定一个防止阻塞的横向定向的进气歧管。 进气口沿着由过滤器跨过的路径中心穿过罐体,经过支撑在压缩弹簧上的帽形提升阀。 槽形和螺纹构件控制提升阀响应的尺寸和范围,以便在安装之前校准组件。 面板覆盖安装的罐,并且进气歧管中的径向叶片作为用于手动调节组件的夹紧元件加倍。 波纹管表通过线性前进穿过斜线或弯曲参考线提供精确的吸力分辨率。 其他改进包括吸盘,密封腔和收集室的紧凑平衡的布局,以及具有与该装置一体的五个面的刚性手柄组件。
    • 75. 发明授权
    • Filtered blood collection device
    • 过滤采血装置
    • US5722964A
    • 1998-03-03
    • US487468
    • 1995-06-07
    • Steve A. HerweckTheodore KarwoskiNicholas Want
    • Steve A. HerweckTheodore KarwoskiNicholas Want
    • A61M1/00A61M1/36
    • A61M1/0013A61M1/0031A61M1/0033A61M1/3627
    • A blood collection vessel includes a blood inlet, a pooling region in which blood from the inlet collects, and an outlet in the pooling region for reinfusion of the collected blood. A filter located in the blood path between inlet and outlet extends at least in part into the pooling region and impounds clots so they remain away from the outlet but suspended in the collected blood. Preferably, the filter is located to provide venting between both sides of the filter. In one embodiment the filter is a vertical wall, which defines a shielded outlet column or chimney extending above the outlet. Blood permeates to the outlet region over a broad area, and the column forms an open suction path that prevents suction differentials from arising across the filter, so clots cannot be sucked through the large-pore material. With the clots residing in the collected fluid, the total fluid loss is directly displayed in a single window at all times, and maximal use is made of the limited volume in the vessel. In another embodiment, the filter constitutes a false floor or basket in the pooling region. A preferred construction employs filter material on a support grid, to form a flexible and self-supporting filter sheet, which inserts like a plate to compartmentalize the collection vessel and form an impounding surface in the pooling region.
    • 血液采集容器包括血液入口,来自入口的血液收集的汇集区域以及汇集区域中用于回收血液回输的出口。 位于入口和出口之间的血液路径中的过滤器至少部分地延伸到汇集区域中并扣留凝块,使得它们保持远离出口但悬浮在收集的血液中。 优选地,过滤器被定位成在过滤器的两侧之间提供排气。 在一个实施例中,过滤器是垂直壁,其限定在出口上方延伸的屏蔽出口塔或烟囱。 血液在大面积上渗透到出口区域,柱形成一个开放的吸入路径,防止吸入差异跨越过滤器,因此凝块不能通过大孔材料吸入。 在收集的液体中存在凝块的情况下,总的流体损失始终直接显示在单个窗口中,并且最大限度地利用了容器中有限的体积。 在另一个实施例中,过滤器构成汇集区域中的假地板或篮子。 优选的结构是在支撑格栅上使用过滤材料,以形成柔性和自支撑的过滤片,其将类似板的插入物分隔成收集容器并在汇集区域中形成蓄水表面。
    • 78. 发明授权
    • In-line fluid recovery system
    • 在线流体回收系统
    • US5380314A
    • 1995-01-10
    • US755032
    • 1991-09-04
    • Steve A. HerweckTheodore Karwoski
    • Steve A. HerweckTheodore Karwoski
    • A61M1/00
    • A61M1/0001A61M1/0015A61M1/0056
    • Apparatus for blood collection includes a collection bag with a suction inlet, a fluid inlet, and an outlet, and an internal stent that resiliently biases the bag into a fixed shape while moving to modulate abrupt variations in suction level. A gross filter about the outlet is located out of the suction path, eliminating blood damage from drying or cell trauma. Different graduation scales show the true volume of collected fluid under suction conditions during collection and with no suction during reinfusion. Two quick-connects allow in-line connection with a chest drain to provide suction, and mate with each other to close the inlets when the filtered bag is removed for gravity reinfusion. When multiple units are piggy-backed, they fill sequentially and may be removed for reinfusion quickly, with only a single tube reconnection required during surgery.
    • 用于采集血液的装置包括具有抽吸入口,流体入口和出口的收集袋,以及内部支架,其在移动时弹性地将袋偏压以调节吸入水平的突然变化。 关于出口的总过滤器位于吸入路径之外,消除了由于干燥或细胞损伤引起的血液损伤。 不同的刻度表示收集过程中抽吸条件下收集的液体的真实体积,并且在再灌注期间没有吸力。 两个快速连接允许与胸部排水管线连接以提供抽吸,并且当过滤的袋子被移除以重力输入时,彼此配合以关闭入口。 当多个单位捎带时,它们依次填充,并且可以快速地移除以进行再灌注,在手术期间仅需要单个管重新连接。
    • 79. 发明授权
    • Improved fluid recovery system
    • 改进流体回收系统
    • US4988342A
    • 1991-01-29
    • US255764
    • 1988-10-11
    • Steve A. HerweckTheodore Karwoski
    • Steve A. HerweckTheodore Karwoski
    • A61M1/00
    • A61M1/0013A61M1/0031A61M1/0056A61M2205/3348A61M2205/59
    • A thoracic cavity drainage device includes a first vessel having a plurality of chambers one of which is a regulated drainage chamber, and a separate transfer vessel which receives fluid collected in the drainage chamber of the first vessel. The chambers of both vessels are interconnected in a series by fluid passageways which cooperate to maintain a uniform range of suction in the drainage chamber while preventing passage of water into the drainage chamber and permitting a different level of suction in the transfer vessel. This operation is effective despite relatively large pressure and vacuum impulses caused by stripping of drainage lines, patient coughing, and the like, and despite discrete changes in the physical configuration of the system caused by disconnection of the transfer vessel, connection of the transfer vessel to an infusion line or the opening or closing of fluid lines and ports. A novel transfer vessel empties the drainage device and provides gravity reinfusion of the collected fluids. A mechanism within the transfer vessel provides an effective suction without vacuum connections or pressure regulating adjustments.
    • 胸腔引流装置包括具有多个腔室的第一容器,其中一个腔室是受调节的排液室,以及接收收集在第一容器的排液室中的流体的单独转运容器。 两个容器的腔室通过流体通道串联连接,这些通道协作以在排水室中保持均匀的吸力范围,同时防止水进入排水室并允许转移容器中的不同吸力水平。 尽管相当大的压力和排水管线的排出引起的真空冲击,患者咳嗽等,尽管由转移容器的断开引起的系统的物理结构发生离散的变化,但是转移容器连接到 输液管线或流体管线和端口的打开或关闭。 一个新的转移容器排空排水装置,并提供收集的流体的重力回输。 转移容器内的机构提供无需真空连接或压力调节调节的有效吸力。
    • 80. 发明授权
    • Elasticization of microporous woven tubes
    • 微孔编织管的弹性
    • US4652263A
    • 1987-03-24
    • US747035
    • 1985-06-20
    • Steve A. HerweckTheodore Karwoski
    • Steve A. HerweckTheodore Karwoski
    • A61F2/06
    • A61F2/06A61F2002/065
    • Disclosed are the product and method for making a macroscopically smooth, microporous, flexible, elastic tubular prosthetic device from a substantially non-elastic woven fabric tube. The method involves axially compressing the substantially non-elastic tube on a tight fitting cylindrical mandrel so that the individual axially oriented threads of the fabric form loops projecting radially outwardly between circumferential threads. The threads are set to return to this loop configuration upon release of tension applied axially to the tube. The exterior of the tube presents an easily deformed, macroscopically smooth surface having a multiplicity of interstices among the threads and among the fibers of the threads into which cells can grow after implantation.
    • 公开了用于从基本上非弹性的机织织物管制造宏观平滑,微孔,柔性,弹性的管状假体装置的产品和方法。 该方法包括在紧密配合的圆柱形心轴上轴向压缩基本上非弹性的管,使得织物的各个轴向定向的线形成在圆周螺纹之间径向向外突出的环。 当释放沿轴向施加到管上的张力时,螺纹被设置为返回到该回路结构。 管的外部呈现容易变形的宏观光滑表面,其在螺纹之间以及在植入后细胞能够生长的螺纹的纤维之间具有多个间隙。