WORCESTER BUSINESS JOURNAL - The Elipse Balloon is already used in 12 countries in Europe and the Middle East, and Allurion expects to have its 10,000th patient by the end of the year after two years on the market. The company is now enrolling 400 patients for a clinical study in the United States, with a plan to receive results next year and win U.S. Food & Drug Administration approval by 2020.