PURPOSE: To obtain a reactor vessel having the exact distribution pattern of the precipitated particles in the coagulation reaction by providing a sample introducing path sucking the sample with a capillarity and providing a recessed part on the inner wall of this introducing path and a transparent plate opposing thereon.
CONSTITUTION: The sample introducing path 5 having a cross sectional area capable of sucking the sample into the inside of this vessel by the capillarity. On the inner wall of the introducing path 5 of this sample, the recessed part 4 is provided and on the upper part of the recessed part 4, a flat transparent plate 3 to be an upper limit of reaction part is provided. When the sample is dropped in the vicinity of a sample introducing inlet 11 with the coagulation reaction such as blood analysis, the fixed amount of sample is sucked to the reaction part 5 by the capillarity and a pattern by the agglutinate particles is formed at the recessed part 4. By using this vessel, the accurate distribution pattern of the precipitated particles is formed within a short time and the distribution pattern is accurately measured.
NIIMURA HISANOBU
YONEKAWA HIROYUKI
