发明授权
- 专利标题: Method of verifying aspirated volume in automatic diagnostic system
- 专利标题(中): 在自动诊断系统中验证吸入体积的方法
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申请号: US985878申请日: 1997-12-05
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公开(公告)号: US6060320A公开(公告)日: 2000-05-09
- 发明人: Jeffrey S. Dorenkott , Carl F. Panek
- 申请人: Jeffrey S. Dorenkott , Carl F. Panek
- 申请人地址: MA East Walpole
- 专利权人: Bayer Corporation
- 当前专利权人: Bayer Corporation
- 当前专利权人地址: MA East Walpole
- 主分类号: G01F22/02
- IPC分类号: G01F22/02 ; G01N35/10
摘要:
A nethod of verifying sample volume quantifies the fluid volume aspirated and verifies sample uniformity by detecting the presence of foam or clots in the sample. After aspiration, a pressure sensor is used to measure the vacuum needed to hold up the column of fluid in the probe tip. By knowing the geometry of the probe tip, the vacuum can be converted to a sample weight and volume, based on sample densities. Non-ideal conditions, such as foam on the surface of the fluid or a clot in the fluid, result in a sample volume much lighter in the case if foam, or much greater, in the case of a clot, than anticipated. The method also determines the elapsed time of the aspiration. Foamy samples result in aspiration times shorter than normal. Clotted samples result in aspiration times longer than normal.
公开/授权文献
- US5372404A Setting device for a tiltable armchair 公开/授权日:1994-12-13