发明名称 |
Automated miniature centrifuge |
摘要 |
A measurement device is provided for determining relative proportions of at least two materials forming a liquid and having different densities and different responses to light. A transparent capillary size cuvette tube confines the sample liquid, and is attached radially on a rotor wheel, preferably by a holder which seals an outer end of the tube and provides a package for manipulation of the tube without exposure to the sample. A motor controlled by a processor turns the rotor wheel, separating the materials by their densities. A linear light source illuminates the tube, and a linear array of photosensors defining pixels produces a signal which varies where the different materials abut. The pixels are counted, to locate the stratum between materials and the result is displayed as a percentage of total volume, suitable for hematocrit measurements. The cuvette tube has a fin for assisting in manipulation, is shaped as an elongated lens, and is cut to a spherical end surface to assist in sample collection.
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申请公布号 |
US5279150(A) |
申请公布日期 |
1994.01.18 |
申请号 |
US19920851183 |
申请日期 |
1992.03.13 |
申请人 |
KATZER, ALBERT E.;KATZER, RODNEY A.;MCBRAIRTY, CHARLES F. |
发明人 |
KATZER, ALBERT E.;KATZER, RODNEY A.;MCBRAIRTY, CHARLES F. |
分类号 |
G01N9/30;G01N15/04;G01N15/05;G01N33/487;G01N33/49;(IPC1-7):G01N21/07;B04B1/04 |
主分类号 |
G01N9/30 |
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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