DEERFIELD – Drug and medical device maker Baxter International plans to buy the privately held Swedish company Gambro AB for about $2.76 billion to broaden its dialysis product portfolio.

Gambro makes dialysis products for patients with acute or chronic kidney disease, and Baxter said it had sales of about $1.6 billion last year.

Baxter International Inc., based in Deerfield, said dialysis treatment rates are rising by more than 5 percent annually, partly due to growing rates of diabetes and high blood pressure. More than 2 million people globally are on some form of dialysis.