公开(公告)号：US3904296A

公开(公告)日：1975-09-09

申请号：US45922674

申请日：1974-04-08

Applicant: BAXTER LABORATORIES INC

Inventor： KIESOW LUTZ A

IPC: G01N21/31 ,  G01N21/06

CPC classification number: G01N21/314

Abstract: An apparatus for deriving an oxygen association rate curve for a blood sample wherein the sample is introduced into a transparentwalled cell and is deoxygenated by contact with a deoxygenated fluorocarbon material. The cell is located in the optical path of two time-shared respective monochromatic beams, one having a wavelength at which there is substantially no change in absorbance as between oxygenated and deoxygenated blood and the other having a wavelength at which there is a relatively large change in absorbance as between oxygenated and deoxygenated blood. The difference in absorbance through the cell of the two wavelengths is measured and recorded while oxygenated fluorocarbon titrant material is pumped through the cell, the cell having a restricted flow passage for the titrant material which acts to separate the blood therefrom and retain it in the cell while the titration is taking place. The sample may be either injected directly into the cell or be exposed to the interior of the cell through gas-permeable capillary tubes extending into the cell in gas-transfer relationship with the interior of the cell, the tubes being transparent and being located in the optical path of the time-shared beams.

Abstract translation: 一种用于导出血液样品的氧相关速率曲线的装置，其中将样品引入透明壁细胞中并通过与脱氧氟碳材料接触脱氧。 细胞位于两个共享时间相应的单色光束的光路中，一个具有在氧合和脱氧血液之间的吸光度基本上没有变化的波长，另一个具有相对较大变化的波长 在吸氧和氧合脱氧血液之间。 测量和记录两个波长的细胞的吸光度差异，同时将氧化的氟碳化合物滴定剂材料泵送通过细胞，该细胞具有用于滴定剂材料的限制流动通道，其用于将血液从其中分离并将其保留在细胞中 而滴定正在发生。 样品可以直接注入细胞，或者通过气体可渗透的毛细管直接注入细胞内，该毛细管与细胞的内部以气体传递关系延伸到细胞中，管是透明的并且位于 时光共享光束的光路。