Blood analysis apparatus

A blood analysis apparatus comprising:

• a sampling unit configured to sample a blood sample by obtaining a specimen from the blood sample;
• a preparation unit configured to dilute and prepare the specimen to produce as a measurement sample a first measurement sample for measuring a ratio of a content of glycohemoglobin to a content of hemoglobin in the specimen and a second measurement sample for measuring a concentration of glucose of the specimen;
• a glycohemoglobin measuring unit configured to measure the ratio of a content of glycohemoglobin to a content of hemoglobin in the specimen from the first measurement sample;
• and
• a glucose measuring unit configured to measure the concentration of glucose of the specimen from the second measurement sample, wherein
• the glucose measuring unit comprises an enzyme electrode for the measurement of the concentration of glucose,
• the preparation unit comprises a dilution bath,
• the blood analysis apparatus further comprises a sample injection valve for introducing the first measurement sample prepared in the dilution bath of the preparation unit to the glycohemoglobin measuring unit, a pipe for connecting the sample injection valve and the dilution bath, and a sample introducing pump for introducing the first measurement sample from the dilution bath to the sample injection valve,
• the enzyme electrode is provided at the dilution bath, and
• the dilution bath is connected to a drain system via an open/close valve that is provided at an upper part of the dilution bath, wherein the open/close valve, when in an opened state, causes excessively supplied cleaning fluid to be discarded to the drain system when the cleaning fluid is supplied to the dilution bath.