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公开(公告)号:US06322752B1
公开(公告)日:2001-11-27
申请号:US09392161
申请日:1999-09-08
IPC分类号: B01L302
CPC分类号: G01N35/1097 , G01N35/10
摘要: A method and apparatus for aspirating and dispensing precise volumes of liquid, e.g. whole blood, comprises an aspiration probe or needle having an internal volume precisely equal to a desired volume to be dispensed, and a computer-controlled shear valve for trapping aspirated liquid inside the probe for subsequent dispensing. A liquid sensor positioned downstream of the shear valve cooperates with a liquid level sensor on the probe tip to assure that the probe lumen is filled with the aspirated liquid.
摘要翻译: 用于吸取和分配精确体积的液体的方法和装置,例如, 全血包括具有精确地等于要分配的期望体积的内部容积的抽吸探针或针,以及计算机控制的剪切阀,用于将吸入的液体捕获在探针内用于随后的分配。 定位在剪切阀下游的液体传感器与探针尖端上的液位传感器配合,以确保探针腔充满抽吸液体。
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公开(公告)号:US06908226B2
公开(公告)日:2005-06-21
申请号:US10360665
申请日:2003-02-07
CPC分类号: G01N35/1016 , B01L3/021 , G01N35/1011 , G01N2035/1018 , G01N2035/1025 , Y10T436/2575
摘要: A method and apparatus for aspirating a liquid (e.g., blood) from a container uses an electrically biased thermistor element, mounted proximate the tip of a liquid-aspirating probe, to determine that the probe is safely submerged within a body of liquid to be aspirated at all times during the aspiration process. Also disclosed are different aspiration probe assemblies that are useful in the method and apparatus of the invention.
摘要翻译: 用于从容器吸出液体(例如血液)的方法和装置使用靠近吸液探针的尖端安装的电偏置热敏电阻元件,以确定探针被安全地浸没在要吸入的液体内 在吸气过程中的任何时候。 还公开了可用于本发明的方法和装置的不同的吸液探针组件。
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