发明名称 |
ASPIRATING AND DISPENSING SMALL VOLUMES OF LIQUIDS |
摘要 |
<p>A metering device for aspirating and dispensing a liquid includes a housing; a pumping medium, preferably a gas containing chamber contained within the housing; a channel having a proximate end in fluid communication with the chamber and a distal end in fluid communication with an external environment; a heat or cold source providing a source of heat or cold to the gas containing chamber; and a temperature sensor for measuring the temperature inside the chamber. In a preferred embodiment, the device further includes a pressure sensor for measuring gas pressure inside the chamber, or multiple chambers. A method for aspirating and dispensing a liquid includes: providing a metering device for aspirating and dispensing a liquid that includes a housing; a gas containing chamber contained within the housing, the chamber; a channel having a proximate end in fluid communication with the chamber and a distal end in fluid communication with an external environment; a heat or cold source providing a source of heat or cold to the gas containing chamber; and a temperature sensor for measuring the temperature inside the chamber; providing a source of liquid to be aspirated; bringing the distal end of the channel into contact with the liquid; cooling the gas containing chamber with the heat or cold source to aspirate a first volume of liquid into the device; and heating the gas containing chamber to dispense a second volume of liquid out of the device. In a preferred embodiment, the metering device is a used in a diagnostic analyzer for determining the presence of one or more analytes in a sample.</p> |
申请公布号 |
EP2205358(B1) |
申请公布日期 |
2012.02.29 |
申请号 |
EP20080799368 |
申请日期 |
2008.09.09 |
申请人 |
ORTHO-CLINICAL DIAGNOSTICS, INC. |
发明人 |
JONES, ROBERT SETH;DING, ZHONG;HEAVNER, DAVE;JAKUBOWICZ, RAYMOND |
分类号 |
G01F1/00;B01L3/02;G01N35/10 |
主分类号 |
G01F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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