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    • 3. 发明授权
    • Hand-held fluid analyzer
    • 手持式液体分析仪
    • US07837936B1
    • 2010-11-23
    • US11874677
    • 2007-10-18
    • Lawrence Martin
    • Lawrence Martin
    • G01N21/00
    • G01J1/50A61B5/097A61B5/4833G01N21/293G01N21/783Y10T436/25Y10T436/255Y10T436/25875
    • A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. The contents of the test chamber are exposed to the breath introduced into the chamber. The presence of a substance in the breath causes the indicator reagent to undergo a visually ascertainable change. The indicator reagent is secured within the test chamber between a pair of filter plugs having plural detents prevent slippage of the filters. Additional embodiments lower the user's risk of being cut by glass shards, prevent reagent inhalation, enhance the visual aspects of the device, and physically indicate the presence of breath flowing through the device.
    • 手持装置检测呼吸中预选物质的存在。 可变形的壳体形成用于使指示剂与呼吸相互作用的测试室。 试验室的内容物暴露于引入室内的呼吸。 呼吸中物质的存在导致指示剂试剂经历可视化的变化。 指示剂在测试室内固定在具有多个棘爪的一对过滤塞之间,防止过滤器滑动。 另外的实施例降低了用户被玻璃碎片切割的风险,防止试剂吸入,增强设备的视觉方面,并物理地指示流过该装置的呼吸的存在。
    • 5. 发明授权
    • Hand-held fluid analyzer
    • 手持式液体分析仪
    • US07285246B1
    • 2007-10-23
    • US10604810
    • 2003-08-19
    • Lawrence Martin
    • Lawrence Martin
    • B32B5/02B32B27/04B32B27/12G01J1/48G01N7/00
    • G01J1/50A61B5/097A61B5/4833G01N21/293G01N21/783Y10T436/25Y10T436/255Y10T436/25875
    • A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. An ampoule positioned inside the housing is ruptured by manual pressure through the walls of the housing. The contents of the ruptured ampoule are exposed to the breath introduced into the chamber. The presence of a substance in the breath causes the indicator reagent to undergo a visually ascertainable change. The ampoule is secured within the housing by a pair of filter plugs having inboard concavities to receive the rounded ends of the ampoule to center it within the housing, and plural detents prevent slippage of the filters. Additional embodiments lower the user's risk of being cut by glass shards, prevent reagent inhalation, enhance the visual aspects of the device, and physically indicate the presence of breath flowing through the device.
    • 手持装置检测呼吸中预选物质的存在。 可变形的壳体形成用于使指示剂与呼吸相互作用的测试室。 位于壳体内的安瓿通过壳体的壁的手动压力破裂。 破裂的安瓿的内容物暴露于引入腔室的呼吸。 呼吸中物质的存在导致指示剂试剂经历可视化的变化。 安瓿通过一对具有内凹凹部的过滤塞固定在壳体内,以便接收安瓿的圆形端部使其在壳体内居中,并且多个棘爪防止过滤器滑动。 另外的实施例降低了用户被玻璃碎片切割的风险,防止试剂吸入,增强设备的视觉方面,并物理地指示流过该装置的呼吸的存在。