Patent ID: 7678577
Filing Date: 2010-03-16
Classification: A61B,B01L,G01N,Y10T

Abstract:
1. A blood analysis apparatus for separating the blood plasma from a whole blood sample by centrifugation and analyzing the components to be tested in the liquid blood component, which includes: (a) a corpuscle/plasma separating part disposed at the lower end of the substrate, including a corpuscle fraction storing part to precipitate the blood corpuscle fraction upon exertion of centrifugal force and to store the corpuscle fraction, and a plasma fraction storing part located upper to the corpuscle fraction storing part to store the blood plasma; (b) a sensor part disposed at the upper end of the substrate, having sensor grooves housing sensors to analyze the components to be tested; (c) a plasma guiding flow channel to connect the corpuscle/plasma separating part; (d) an inlet for blood to introduce the whole blood sample to the corpuscle/plasma separating part; (e) a calibration solution reservoir to store a calibration solution for the calibration of sensors, (f) a calibration solution waste reservoir to store the calibration solution after the calibration of sensors, (g) a calibration solution introducing flow channel to connect the calibration solution reservoir and the sensor grooves, and (h) a calibration solution discharging flow channel to connect the sensor grooves and the calibration solution waste reservoir; wherein centrifugation can be carried out around a first centrifugal axis which is located upper to the corpuscle fraction storing part and lower to the upper end of plasma fraction storing part; while centrifugation can be carried out around a second centrifugal axis, which is located within or closer to the sensor part than corpuscle/plasma separating part; and wherein the calibration solution reservoir is located on the lower side of the sensor part and on the upper side of the first centrifugal axis, and the calibration solution waste reservoir is located on the upper side of the sensor part.