Disposable slicing lancet assembly
    1.
    发明授权
    Disposable slicing lancet assembly 失效
    一次性切片柳叶刀组装

    公开(公告)号:US5314441A

    公开(公告)日:1994-05-24

    申请号:US962284

    申请日:1992-10-16

    IPC分类号: A61B5/15 A61B17/32

    摘要: A lancet device uses a planar blade that implements an incision in the skin of a patient using a slicing action. There is a blade support arm pivotably secured within a hollow housing. The pivot connection between the blade support arm and the housing is formed by a pivot pin which extends from the housing and is positioned in a slot receptacle formed on the blade support arm. The pivot pin is free to reciprocally move within the slot receptacle as the blade support arm pivot about the pivot pin. The rotation of the blade support arm about the pivot pin is implemented by a bias spring. The path traversed by the blade support arm as it pivots is controlled by a groove located on the interior surface of the housing which engages a projection that extends from the blade support arm. As such, when the support arm pivots from a first position to a second position, the projection on the blade support arm traverses the groove in the housing. The action of the projection of the blade support arm following the groove in the housing causes the slot receptacle on the blade support arm to reciprocate. Consequently, the blade is caused to reciprocate within the housing as it rotates with the blade support arm, wherein the blade exits the housing, implements an incision and is again retracted into the housing traversing a "tear drop" shaped path.

    摘要翻译: 刺血针装置使用平面刀片,其使用切片动作在患者的皮肤中实现切口。 有一个可枢转地固定在中空壳体内的刀片支撑臂。 叶片支撑臂和壳体之间的枢转连接由枢轴销形成,枢轴销从壳体延伸并且定位在形成在叶片支撑臂上的槽容纳部中。 当刀片支撑臂围绕枢转销枢转时,枢轴销可在槽口内自由地往复运动。 叶片支撑臂围绕枢转销的旋转由偏置弹簧实现。 刀片支撑臂在其枢转时穿过的路径由位于壳体的内表面上的凹槽控制,该槽与从刀片支撑臂延伸的突起接合。 这样,当支撑臂从第一位置枢转到第二位置时,叶片支撑臂上的突起穿过壳体中的凹槽。 叶片支撑臂突出在壳体中的凹槽的作用使得叶片支撑臂上的槽容纳件往复运动。 因此,当叶片与叶片支撑臂一起旋转时,使叶片在壳体内往复运动,其中叶片离开壳体,实现切口并且再次缩回穿过“泪滴”形状路径的壳体。

    Method and apparatus for coagulation based assays
    2.
    发明授权
    Method and apparatus for coagulation based assays 有权
    用于基于凝固的测定法

    公开(公告)号:US06451610B1

    公开(公告)日:2002-09-17

    申请号:US09291776

    申请日:1999-04-14

    IPC分类号: G01N3386

    CPC分类号: G01N33/5302 G01N33/86

    摘要: An activated partial thromboplastin time (APTT) test is described which employs fresh, whole blood that has not been anticoagulated. The method employs a disposable cuvette having specific reagents placed therein. A sample of whole blood is introduced into the cuvette which is drawn into at least one conduit by a pneumatic pump. Initially, the calcium in the sample is chelated at a first reaction site in the conduit, and thereafter is moved through the conduit to a second reaction site where the sample is coagulated by an APTT reagent. After a predetermined incubation time, the sample is moved to a third reaction site where it is recalcified. Clotting time is measured from the time that the sample is recalcified to the time that clot formation is visibly detected.

    摘要翻译: 描述了激活的部分凝血活酶时间(APTT)测试,其使用尚未抗凝的新鲜全血。 该方法采用在其中放置特定试剂的一次性比色皿。 将全血样品引入比色皿中,该比色皿通过气动泵吸入至少一个导管中。 最初,样品中的钙在导管中的第一个反应部位被螯合,然后通过导管移动到第二个反应部位,在该第二个反应部位,样品被APTT试剂凝结。 在预定的孵育时间之后,将样品移至第三反应部位,在此其再次被煅烧。 凝固时间是从样品再次煅烧的时间到可见的凝块形成时间来测量的。