LAKE FOREST, Calif.--(BUSINESS WIRE)--I-Flow Corporation (NASDAQ:IFLO) today announced a 32% increase in sales in its Regional Anesthesia business for 2007, to a record $89.6 million compared to $67.9 million for 2006, and a 24% increase in total revenue from continuing operations versus the prior year. Regional Anesthesia sales increased 29% for the fourth quarter of 2007, to a record $25.2 million compared to $19.6 million for the fourth quarter of 2006, and total revenue from continuing operations increased 27% versus prior year.