Method of preparing a fluid absorbent quantitative test device
    26.
    发明授权
    Method of preparing a fluid absorbent quantitative test device 失效
    制备吸液定量试验装置的方法

    公开(公告)号:US4846182A

    公开(公告)日:1989-07-11

    申请号:US551055

    申请日:1983-11-14

    IPC分类号: A61B5/00 G01N33/52 G01N33/84

    摘要: Preparation of an absorbent quantitative test device in the form of a flat patch. When placed on the skin of a subject, the device collects a fixed volume of sweat. It is particularly intended to be used in screen testing for cystic fibrosis by measuring the chloride level in sweat and providing a visual indication when the level is in excess of a predetermined concentration. A fill tab indicator undergoes a color change when the fixed volume of sweat has been collected signifying completion of the test. The device includes two concentric circular reaction areas of chemically treated absorbent paper or the like. The sweat sample is introduced into the device at the center of the first or inner circular reaction area which contains a chemical composition capable of reacting with all chloride in the sweat sample below a predetermined concentration value to screen out that amount of chloride. A second or outer ring-shaped reaction area contains a chemical composition which indicates a color change for any chloride reaching it in excess of the predetermined concentration value. The color change in the outer ring-shaped portion thereby provides a quantitative indication of the pressure of a concentration of chloride in the subject's sweat in excess of the predetermined concentration level.

    摘要翻译: 制备平面贴片形式的吸收剂定量测试装置。 当放置在受试者的皮肤上时,该装置收集固定体积的汗液。 特别旨在通过测量汗液中的氯化物含量并在水平超过预定浓度时提供视觉指示来用于囊性纤维化的屏幕测试。 当收集的固定体积的汗水表示测试完成时,填充标签指示器会发生颜色变化。 该装置包括化学处理的吸收纸等的两个同心圆形反应区域。 汗液样品在第一或内部圆形反应区域的中心被引入到装置中,该区域包含能够使低于预定浓度值的汗液样品中的所有氯化物反应的化学组成,以筛除该量的氯化物。 第二个或外部环形反应区域包含化学组成,其指示任何达到超过预定浓度值的氯化物的颜色变化。 外环形部分中的颜色变化从而提供了超过预定浓度水平的受试者汗水中氯浓度的压力的定量指示。