Diagnostic test for the measurement of analyte in abiological fluid
    13.
    发明授权
    Diagnostic test for the measurement of analyte in abiological fluid 有权
    用于测量生物体液中分析物的诊断试验

    公开(公告)号:US06565738B1

    公开(公告)日:2003-05-20

    申请号:US09239200

    申请日:1999-01-28

    CPC classification number: G01N33/5438 C12Q1/52

    Abstract: A biosensor for determining the concentration of an analyte, such as, for example, ALT, in a sample of biological fluid, such as, for example, whole blood, comprising: (a) a base layer; (b) a detecting layer comprising a reference electrode and a working electrode, the surface of the electrically conductive portion of the working electrode being sufficiently smooth so that determination of the concentration of an analyte present in a low concentration, e.g., less than 1 mM, can be made; (c) a layer overlying said electrodes, said layer comprising dried reagents; and (d) an anticoagulant disposed in such a location that it will prevent the sample from coagulating during the determination. The biosensor preferably further includes a fluid-transporting layer to aid in delivering the sample from a sample application zone to the electrodes. The biosensor preferably further includes a covering layer overlying the electrode area to reduce evaporation of the sample during the assay and to help define the fluid transport path and the volume of fluid over the detecting layer.

    Abstract translation: 一种生物传感器,用于在生物流体例如全血样品中测定分析物(例如ALT)的浓度,包括:(a)基底层;(b)检测层,包括 参考电极和工作电极,工作电极的导电部分的表面足够光滑,从而可以确定以低浓度(例如小于1mM)存在的分析物的浓度;(c )覆盖所述电极的层,所述层包括干燥试剂; 和(d)设置在这样的位置的抗凝血剂,以防止样品在测定期间凝结。生物传感器优选地还包括流体输送层,以帮助将样品从样品施加区输送到电极。 生物传感器优选地还包括覆盖电极区域的覆盖层,以减少在测定期间样品的蒸发,并帮助限定流体输送路径和检测层上的流体体积。

    Removal of stratum corneum by means of light
    16.
    发明授权
    Removal of stratum corneum by means of light 失效
    通过光去除角质层

    公开(公告)号:US6027496A

    公开(公告)日:2000-02-22

    申请号:US823940

    申请日:1997-03-25

    Abstract: A method for increasing the permeability of the stratum corneum by means of a source of light, preferably a laser, more preferably a pulsed laser. By increasing the permeability of the stratum corneum, access to the interstitial fluid is achieved, thereby enabling measurement of analytes in the interstitial fluid. In one aspect, the method comprises the steps of:(a) providing a source of light having a wavelength of from about 930 nm to about 1040 nm; and(b) exposing a region of the stratum corneum of the patient to said source of light for a period of time sufficient to form an opening in the stratum corneum.Preferably, exposure of the region of the stratum corneum to the source of light is ceased when an amount of interstitial fluid fills the opening in the stratum corneum, which amount is sufficient to cause the scatter intensity of the light reflected from the surface of the interstitial fluid occupying the opening in the stratum corneum to differ from the scatter intensity of the light reflected from a region of the stratum corneum that is substantially free of interstitial fluid. The invention also involves an apparatus for carrying out the foregoing method.

    Abstract translation: 通过光源,优选激光,更优选脉冲激光来提高角质层的透过性的方法。 通过增加角质层的渗透性,实现对间质液的接近,从而能够测量间质液中的分析物。 一方面,该方法包括以下步骤:(a)提供波长为约930nm至约1040nm的光源; 和(b)将患者的角质层的区域暴露于所述光源一段足以在角质层中形成开口的时间段。 优选地,当间质液体的量填充角质层中的开口时,角质层的区域暴露于光源将被停止,该量足以引起从间隙的表面反射的光的散射强度 占据角质层中的开口的流体不同于从基本上不含间质液的角质层区域反射的光的散射强度。 本发明还涉及一种用于执行上述方法的装置。

    Method and apparatus for obtaining blood for diagnostic tests
    19.
    发明授权
    Method and apparatus for obtaining blood for diagnostic tests 有权
    血液检测方法及装置

    公开(公告)号:US06283926B1

    公开(公告)日:2001-09-04

    申请号:US09532729

    申请日:2000-03-22

    Abstract: Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of: (a) forming an unobstructed opening in the area of the skin from which the sample of blood is to be extracted; and (b) extracting the sample of blood from the unobstructed opening in the skin, with the aid of a vacuum and a stretching of the skin. In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises: (a) a device for forming an unobstructed opening in an area of skin from which said sample is to be extracted, preferably a lancing assembly; and (b) a vacuum pump. Preferably, the apparatus also includes a housing.

    Abstract translation: 用于从患者获得血样的方法和装置用于随后的诊断测试,例如葡萄糖监测。 在本发明的一个方面,所述方法包括以下步骤:(a)在要从其中提取血液样本的皮肤区域中形成无障碍的开口; 并且(b)借助于皮肤的真空和拉伸,从皮肤中的无障碍的开口提取血液样品。在本发明的另一方面,提供了一种用于执行前述方法的装置。 该装置包括:(a)用于在皮肤区域形成无障碍的开口的装置,所述皮肤区域将从所述皮肤区域中提取所述样品,优选为采血组件; 和(b)真空泵。优选地,该装置还包括壳体。

    Method and apparatus for obtaining interstitial fluid for diagnostic
tests
    20.
    发明授权
    Method and apparatus for obtaining interstitial fluid for diagnostic tests 失效
    用于诊断测试的获得间质液的方法和装置

    公开(公告)号:US06155992A

    公开(公告)日:2000-12-05

    申请号:US982449

    申请日:1997-12-02

    Abstract: A method and apparatus for obtaining a sample of interstitial fluid from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of (a) treating an area of the skin with vacuum or heat or both vacuum and heat to increase the availability of interstitial fluid at that area of the skin; (b) forming an opening in the treated area of the skin; and (c) extracting the sample of interstitial fluid from the opening in the skin, with the aid of vacuum and stretching of the skin. In another aspect of the invention, an apparatus for carrying out the method described previously is provided. Th apparatus comprises (a) a device for forming an unobstructed opening in the area of the skin from which the sample is to be extracted, preferably a lancing assembly; and (b) a vacuum pump. Preferably, the apparatus also includes a housing.

    Abstract translation: 一种从患者获得间质液样品的方法和装置,用于随后的诊断测试,例如葡萄糖监测。 在本发明的一个方面,该方法包括以下步骤:(a)用真空或热或真空和热处理皮肤区域,以增加皮肤区域间隙液的可用性; (b)在皮肤的处理区域中形成开口; 并且(c)借助真空和皮肤拉伸从皮肤开口提取间质液样品。 在本发明的另一方面,提供一种用于执行前述方法的装置。 Th装置包括(a)用于在要从其中提取样品的皮肤区域中形成无障碍的开口的装置,优选为采血组件; 和(b)真空泵。 优选地,该装置还包括壳体。

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