Device for the determination of a variable corresponding to the erythrocyte aggregation

摘要

Device for the determination of a variable corresponding to the erythrocyte aggregation working on the plate/cone principle, a blood sample (18) being arranged between the measurement chamber parts (12, 14) the aggregates of which are de-aggregated by shearing. In order to improve the measurement results, one of the measurement chamber parts (12, 14) is provided in its centre with a circular, light-absorbing diaphragm (20, 40) and advantageously with an annular outer diaphragm (26, 42). A reflective layer (22, 24) is provided between the two diaphragms on the measurement chamber part (14) located on the side facing away from the light source (34). <IMAGE>