Ultrasonically actuated needle pump system

    公开(公告)号:US20030195468A1

    公开(公告)日:2003-10-16

    申请号:US10441735

    申请日:2003-05-20

    Abstract: An ultrasonically driven pump, which may be used for sampling body fluids or atomizing liquids, has a stationary outer needle and an inner needle mounted within the bore of the outer needle. The distal end of the inner needle is positioned adjacent to the distal end of the outer needle. The inner needle is ultrasonically vibrated by an ultrasonic actuator without vibrating the outer needle, with resulting draw of liquid through the distal end of the outer needle into the bore of the inner needle for discharge through the proximal end of the inner needle. The outer needle can be formed to have a penetrating tip suited for penetrating the skin of a subject to allow sampling of body fluids including interstitial fluids. The pump can also be used for atomizing liquid, by drawing liquid from a supply that is pumped from the distal end to an open proximal end of the inner needle where the liquid is discharged by atomization into the atmosphere.

    Stress control of semiconductor microstructures for thin film growth
    2.
    发明申请
    Stress control of semiconductor microstructures for thin film growth 有权
    用于薄膜生长的半导体微结构的应力控制

    公开(公告)号:US20040232504A1

    公开(公告)日:2004-11-25

    申请号:US10876140

    申请日:2004-06-24

    Abstract: A suspended semiconductor film is anchored to a substrate at at least two opposed anchor positions, and film segments are deposited on the semiconductor film adjacent to one or more of the anchor positions to apply either tensile or compressive stress to the semiconductor film between the film segments. A crystalline silicon film may be anchored to the substrate and have tensile stress applied thereto to reduce the lattice mismatch between the silicon and a silicon-germanium layer deposited onto the silicon film. By controlling the level of stress in the silicon film, the size, density and distribution of quantum dots formed in a high germanium content silicon-germanium film deposited on the silicon film can be controlled.

    Abstract translation: 悬浮的半导体膜在至少两个相对的锚固位置处锚定到基底,并且膜部分沉积在与一个或多个锚定位置相邻的半导体膜上,以将拉伸或压缩应力施加到膜段之间的半导体膜 。 结晶硅膜可以锚定到基底并且施加拉伸应力以减小硅和沉积在硅膜上的硅 - 锗层之间的晶格失配。 通过控制硅膜中的应力水平,可以控制沉积在硅膜上的高锗含量硅 - 锗膜中形成的量子点的尺寸,密度和分布。

    Ultrasonically actuated needle pump system
    3.
    发明申请
    Ultrasonically actuated needle pump system 有权
    超声波驱动针泵系统

    公开(公告)号:US20040204680A1

    公开(公告)日:2004-10-14

    申请号:US10834688

    申请日:2004-04-29

    Abstract: An ultrasonically driven pump, which may be used for sampling body fluids or atomizing liquids, has a stationary outer needle and an inner needle mounted within the bore of the outer needle. The distal end of the inner needle is positioned adjacent to the distal end of the outer needle. The inner needle is ultrasonically vibrated by an ultrasonic actuator without vibrating the outer needle, with resulting draw of liquid through the distal end of the outer needle into the bore of the inner needle for discharge through the proximal end of the inner needle. The outer needle can be formed to have a penetrating tip suited for penetrating the skin of a subject to allow sampling of body fluids including interstitial fluids. The pump can also be used for atomizing liquid, by drawing liquid from a supply that is pumped from the distal end to an open proximal end of the inner needle where the liquid is discharged by atomization into the atmosphere.

    Abstract translation: 可用于取样体液或雾化液体的超声波泵具有固定的外针和安装在外针的孔内的内针。 内针的远端定位成与外针的远端相邻。 内针被超声波致动器超声波振动,而不会使外针振动,从而将液体从外针的远端抽出到内针的孔中,以通过内针的近端排出。 外针可以形成为具有适于穿透受试者皮肤的穿透尖端,以允许对体液(包括间质液)进行取样。 该泵还可用于雾化液体,其是从从远端泵送到内针的开口近端的液体从液体通过雾化排放到大气中排出液体。

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