Patent ID: 7749442
Filing Date: 2010-07-06
Classification: B01F,B01L,G01N

Abstract:
1. A sample measuring device comprising: at least one reagent melting/mixing means; a sample supply chamber communicating with the reagent melting/mixing means to cause a sample to flow into the reagent melting/mixing means; and at least one measuring chamber communicating with the reagent melting/mixing means, wherein the sample supply chamber, the reagent melting/mixing means, and the measuring chamber are arranged from an upstream to a downstream side of a flow passage for a sample, which is moved by a sample moving means, and that the sample supply chamber is arranged on an upstream side of the reagent melting/mixing means, and the measuring chamber is arranged on a downstream side of the reagent melting/mixing means, and wherein the reagent melting/mixing means comprises a reagent melting chamber accommodating a reagent that is to react with the sample and a mixing chamber communicating with the reagent melting chamber through a siphon, a bypass passage, connecting the sample supply chamber and the measuring chamber, bypassing at least one of the following components provided between the sample supply chamber and the measuring chamber: the reagent melting chamber, the mixing chamber, and the reagent melting/mixing means including the reagent melting chamber and the mixing chamber, and wherein, when an action force causing the sample to flow from the sample supply chamber to the measuring chamber is imparted to the sample measuring device, there is generated a time lag in sample inflow into the measuring chamber such that, as compared with the flow passage which allows the sample from the sample supply chamber to reach the measuring chamber through the reagent melting/mixing means, the flow passage which allows the sample to reach the measuring chamber through the bypass passage causes the sample to flow into the measuring chamber through the bypass passage before the sample from the sample supply chamber reaches the measuring chamber through the reagent melting/mixing means, and wherein, at least a portion of the sample received from the bypass passage is positioned for measurement and, thereafter, at least a portion of the sample received from the reagent melting/mixing means is positioned for measurement.