SOUTH JORDAN, Utah, May 2, 2007 (PRIME NEWSWIRE) -- Merit Medical Systems, Inc. (Nasdaq:MMSI), a leading manufacturer and marketer of proprietary disposable devices used primarily in cardiology and radiology procedures, today announced revenues of $51.0 million for the first quarter ended March 31, 2007, an increase of 13.3% over revenues of $45.0 million for the first quarter of 2006.