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    • 1. 发明授权
    • Piezoelectric micropump
    • 压电微型泵
    • US06368079B2
    • 2002-04-09
    • US09220310
    • 1998-12-23
    • Richard D. PetersChad E. BoutonWilliam C. Zimlich, Jr.
    • Richard D. PetersChad E. BoutonWilliam C. Zimlich, Jr.
    • F04B1700
    • F04B43/046
    • A piezoelectric micropump is disclosed for pumping fluid from a container to a delivery point in low volumes and at controlled flow rates. The pumping action is created by movement of two or three diaphragms. The movement of each diaphragm is caused by expansion and contraction of an attached piezoelectric actuator. Coordination of the movement of the diaphragms creates unidirectional flow of the fluid. The piezoelectric actuators are cantilevered between the pump body and the diaphragms to provide greater deflection of the diaphragms. The piezoelectric actuators preferably are piezoelectric bimorphs such that the diaphragms can function as both seals and pumps.
    • 公开了一种用于将流体从容器中以低体积和受控流速泵送到输送点的压电微型泵。 通过两个或三个隔膜的移动产生泵送动作。 每个隔膜的移动是由附着的压电致动器的膨胀和收缩引起的。 隔膜的运动的协调产生流体的单向流动。 压电致动器在泵体和隔膜之间悬臂以提供更大的隔膜偏转。 压电致动器优选地是压电双晶片,使得隔膜可以用作密封件和泵两者。
    • 6. 发明授权
    • Access disconnect detection
    • 访问断开检测
    • US09011334B2
    • 2015-04-21
    • US11862697
    • 2007-09-27
    • Chad E. Bouton
    • Chad E. Bouton
    • A61B5/00A61B5/02A61M37/00A61M1/36
    • A61M1/3653A61B5/02042A61M1/3656
    • Techniques are disclosed for monitoring the flow of blood returning to a patient from an extracorporeal therapy machine, such as a hemodialysis machine or an apheresis machine. Blood returning from such a machine is pumped, typically by a peristaltic pump, which returns the blood in pulsed flow or pulses. This flow can be sensed by Doppler flow sensors or accelerometers as it returns to the patient. If the flow is interrupted by dislodgement of the venous access needle, or by leaking of blood from the needle, these sensors will detect significantly different flow or vibrations. A controller can then cease therapy, alert a caregiver, or sound an alarm.
    • 公开了用于监测从诸如血液透析机或单采血浆机的体外治疗机返回患者的血液流动的技术。 通常由蠕动泵泵送从这样的机器返回的血液,其以脉冲流或脉冲返回血液。 多普勒流量传感器或加速计可以在患者返回时检测该流量。 如果通过静脉进入针的移位或者针头上的血液泄漏中断流动,则这些传感器将检测出显着不同的流动或振动。 然后,控制员可以停止治疗,警惕看护者或发出警报。
    • 8. 发明授权
    • System for detecting fluid changes and sensoring devices therefor
    • 用于检测流体变化的系统和用于其的传感装置
    • US08295920B2
    • 2012-10-23
    • US10576333
    • 2004-10-25
    • Chad E. BoutonFelicia R. RuggeriR. Reade HarphamJeffrey R. Held
    • Chad E. BoutonFelicia R. RuggeriR. Reade HarphamJeffrey R. Held
    • A61B5/05
    • A61B5/0004A61B5/0507A61B5/0537A61B5/411A61B5/4878A61B5/6833A61B2562/02A61B2562/046A61M5/16836A61M2205/3523
    • A sensor device for detecting a change fluid level within body tissue comprising a housing with bridge segments connecting at intersections arranged to circumscribe an opening. Further, antenna elements are partially seated within the housing at intersections of bridge segments, comprise a generally planar antenna mounted to a substrate material at a base of the planar antenna, and an electrical shield surrounding the substrate. Also, an outer surface of the planar antenna faces away from the substrate. The antenna elements comprise at least first and second antenna element pairs having transmitting and receiving antenna elements and a bridging segment. A high sensitivity zone is formed between the transmitting antenna and receiving antenna. The antenna element pairs are spaced to create an area of reduced sensitivity between the high sensitivity zones, and the space is set so that the sensor is insensitive to fluid changes of a predetermined volume.
    • 一种用于检测身体组织内的变化流体水平的传感器装置,包括壳体,所述壳体具有连接在布置成限定开口的交叉点处的桥接段。 此外,天线元件在桥接部分的交叉处部分地位于壳体内,包括安装到平面天线的基部处的基板材料的大体平面的天线以及围绕基板的电屏蔽。 此外,平面天线的外表面也远离基板。 天线元件至少包括具有发射和接收天线元件和桥接段的第一和第二天线元件对。 在发射天线和接收天线之间形成高灵敏度区域。 天线元件对被间隔开以在高灵敏度区域之间产生灵敏度降低的区域,并且设置空间使得传感器对预定体积的流体变化不敏感。
    • 10. 发明申请
    • Device and Method for Determining Activity of Radiopharmaceutical Material
    • 放射性药物材料活性测定装置及方法
    • US20120074330A1
    • 2012-03-29
    • US12664653
    • 2009-12-14
    • Chad E. BoutonArthur E. Uber, III
    • Chad E. BoutonArthur E. Uber, III
    • G01T1/16G01T1/00
    • G01T7/02A61M5/007
    • A detector system measures radioactive material. A fluid path receives at least one aliquot of radiopharmaceutical. The fluid path locates the aliquot within a positioner formed with a concave configuration. A detector is located at an axial distance from the concave surface and determines the level of radioactivity of the aliquot. Alternatively, the fluid path may be less concave and a variable attenuator may be placed between the fluid path and detector. The variable attenuator may have a concavity that is based on the concavity of the fluid path so that the detector's ability to read the radioactivity is optimized. A method for forming an aliquot of radiopharmaceutical in a concave fluid passage. Positioning a detector located a distance from the concave surface to optimize reading spectral energy of the aliquot and activity is determining activity regardless of the position of the aliquot in the passage.
    • 检测器系统测量放射性物质。 流体路径接收至少一个等分的放射性药物。 流体路径将等分试样定位在形成有凹形构型的定位器内。 检测器位于距凹面的轴向距离处,并确定等分试样的放射性水平。 或者,流体路径可以较少凹入,并且可变衰减器可以放置在流体路径和检测器之间。 可变衰减器可以具有基于流体路径的凹部的凹度,使得检测器读取放射性的能力被优化。 还描述了在凹形流体通道中形成放射性药物的等分试样的方法。 定位一个与凹面相距一定距离的检测器,通过确定活动而不考虑通道中等分试样的位置,优化读取等分试样的光谱能量和活性。