The takeover of CaridianBCT would make Terumo the leader in the world's market related to blood transfusions, with consolidated annual sales of about 70 billion yen ($854 million), the company said in a press release.

A contract on the takeover was signed Monday to push Terumo's aim of boosting its overall annual revenue to one trillion yen within 10 years, the statement said.

Terumo booked sales of 316 billion yen in the year to March 2010, with its blood-related products making up less than 10 percent of the total.

CaridianBCT, established in 1964, specialises in devices that can efficiently extract platelets from blood.

With the purchase, due to be completed in May, the ratio of products related to blood transfusions in Terumo's total sales will rise to 18 percent from eight percent "as a new pillar to prop up Terumo's growth," the statement said.