In the diagnostics business, sales rose, owing to higher sales in our major fields of hematology*2, urinalysis, and hemostasis. In our mainstay field of hematology, instrument sales rose in China, as we reinforced our local production system, and in Japan, centered on the sale of new products. Reagent sales were also favorable across all regions, leading to double-digit sales growth in the hematology field. Also in the urinalysis, hemostasis, immunochemistry, and life science fields, sales of reagents and services increased, owing to the expansion of our installed instrument base.
In the medical robotics business, we installed nine units during the period, bring our total to 44. The number of surgeries performed using our system increased by 790 between October and December 2023, bringing the total number of cases to more than 3,300 as of December 31, 2023, pointing to solid growth.
Among major recent topics, in January 2024 we expanded sales to Europe (following on from sales in Japan and the United States) of a blood-based test reagent to check the accumulation of amyloid-β in the brain, which is believed to be a cause of Alzheimer's disease. Going forward, Sysmex will continue to promote activities towards expanding its testing parameters, including assay kits, accelerating the deployment of our immunochemistry testing business in Europe. Sysmex is committed to establishing and promoting testing and diagnostic technologies that put less of a burden on patients, both in Japan and overseas, and on enhancing the quality of life for patients and their families.
I would like to ask our stakeholders for your continued support.
*1 EMEA: Europe, the Middle East, and Africa
*2 Hematology field: The field of in vitro diagnostics that determines whether precise testing is necessary by analyzing the number, type and size of red, white and other blood cells.