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    • 4. 发明授权
    • Adhesive plate with indicator function and indicator therefor
    • 带指示灯功能的胶板和指示灯
    • US5942186A
    • 1999-08-24
    • US770666
    • 1996-12-20
    • Hiromi SanadaSatoru NumataKouji UsukuraTakayuki Sekine
    • Hiromi SanadaSatoru NumataKouji UsukuraTakayuki Sekine
    • A61F5/443A61L15/42G01N33/487
    • A61L15/42A61F5/443Y10S252/964
    • An adhesive plate with an indicator function, and an indicator therefor, according to one embodiment the adhesive plate being comprised of a hydrophilic composition containing a water-soluble coloring matter such as a food color, a dye, a pigment, or metallic salt applied onto or embedded in a part or the whole of a peripheral region of the plate spaced apart from the center thereof, the water-soluble coloring matter being dissolvable in liquid excrements or exudates so as to change color and provide visible indication of the end of the usable life of the adhesive plate. According to another embodiment, the adhesive plate can comprise a hydrophilic composition containing a color development agent applied onto or embedded in a part or the whole of a peripheral region of the plate spaced apart from the center, which, upon contact with liquid excrements or exudates, the hydrophilic composition containing the color development agent is dissolved therein and dropped into a receiving bag attached to the adhesive layer, to permit the color development agent to come into contact with, and react with a coloring reagent previously added to the bag, whereby the color of the color development agent and/or the coloring reagent is changed thereby indicating the limit of the useful life of the adhesive plate.
    • 具有指示功能的粘合板及其指示剂,根据一个实施方案,所述粘合板由包含水溶性着色剂如食用颜料,染料,颜料或金属盐的亲水性组合物构成,所述水溶性着色物质施加到 或嵌入在与其中心间隔开的板的周边区域的一部分或全部中,水溶性着色物质可溶于液体排泄物或渗出物中,以便改变颜色并提供可用的 粘贴板的寿命。 根据另一个实施方案,粘合剂板可以包含亲水性组合物,其含有施加到或嵌入在与中心间隔开的板的周边区域的一部分或全部的部分或整体上的显色剂,其在与液体排泄物或渗出物接触时 ,将含有显色剂的亲水性组合物溶解并滴入附着于粘合剂层的接收袋中,使显色剂与先前添加到袋中的着色剂接触并与其反应,由此, 显色剂和/或着色剂的颜色改变,从而表明粘合板的使用寿命的极限。