LAKE FOREST, Calif.--(BUSINESS WIRE)--I-Flow Corporation (NASDAQ:IFLO) announced today that preliminary results of an ON-Q prospective human study in colorectal surgery were presented at the annual meeting of the Surgical Infection Society (SIS) in Toronto. This trial was designed to evaluate the effects of ON-Q PainBuster with ON-Q SilverSoaker Antimicrobial Catheter on surgical site infections. The early results of the ongoing study indicate a statistically significant reduction in the rate of surgical site infections and a statistically significant decrease in length of hospital stay for patients who received ON-Q versus those who received only narcotics, today’s standard of care for pain relief after surgery.