The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1987
Filed:
Jun. 29, 1983
Hitachi, Ltd., Tokyo, JP;
Abstract
A single sampling tube is inserted into a whole blood sample contained in a sample cup, and the blood introduced into a switch-valve and a first channel without being diluted. The switch-valve has a volumetric section. In the first channel are arranged a plurality of ion-sensing electrodes, and downstream from these electrodes, a sample position sensor. The blood is led up to where the sample position sensor is located, at which point it fills the volumetric section and the ion sensing electrode channels. The sample Na.sup.+, K.sup.+, Cl.sup.-, and Ca.sup.++ are detected in this state. After the switch-valve switches, the flow within the volumetric section is forced towards a photometer positioned in a second channel by a reagent solution. The blood is diluted while passing through a reaction coil, during which time enzymes in the blood give rise to enzyme reactions with the reagents. The absorbance of the reaction solution is measured by the photometer.