Patent ID: 8460938
Filing Date: 2013-06-11
Classification: G01N

Abstract:
1. A blood analyzing device comprising: a holder arranged for carrying a container having a cuvette comprising a blood sample; a unit for inducing movement of blood cells in said blood sample when said container is positioned in said holder; a light source arranged for providing input light of a wavelength at which a hemoglobin species has maximum absorbance into said blood sample; a detector arranged for i) detecting, at least once within a measuring time interval following positioning of said container in said holder, output light having passed through said blood sample, ii) detecting, based on said output light from said blood sample and following said measuring time interval, a change in said induced movement of said blood cells in said blood sample as a reduction in a rate of change of absorbance at said wavelength at which said hemoglobin species has maximum absorbance and iii) generating a detection signal based on said detected change in said induced movement; and a processor connected to said detector and configured to i) determine at least one of total hemoglobin or at least one hemoglobin fraction in said blood sample based on said output light detected during said measuring time interval and ii) determine a viscosity representing signal representative of a viscosity change in said blood sample based on said detection signal and said at least one of total hemoglobin or at least one hemoglobin fraction.