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    • 10. 发明授权
    • Visual indicating device for bad breath
    • 视觉指示装置用于口臭
    • US08702618B2
    • 2014-04-22
    • US13549550
    • 2012-07-16
    • John Gavin MacDonaldKevin P. McGrathRameshBabu Boga
    • John Gavin MacDonaldKevin P. McGrathRameshBabu Boga
    • A61B5/08
    • G01N33/497B41M5/30G01N31/223G01N33/52G01N33/54346
    • The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4′-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.
    • 本发明提供了一种呼吸测试装置,其包括在存在与口臭相关的气味(例如硫和氨气味)的情况下改变颜色的视觉指示剂。 视觉显示剂的一个实例是4,4'-双(二甲基氨基) - 二苯甲醇(Michler's hydrol或BDMB)和具有相似化学结构的相关染料。 将指示剂施加到基材上,然后将其插入管或吸管中,或覆盖吸管的一端。 当口臭的用户吹入管或吸管时,指示剂会改变颜色。 呼吸测试装置为用户提供了一种快速且经济实惠的手段来测试他们的呼吸,并且它们可以被包装在谨慎的袖珍尺寸的分配器中,该分配器可以携带在口袋或钱包中。