ATS Medical, Inc. (ATS) develops, manufactures and markets medical devices for the treatment of structural heart disease. Product offerings include devices for the treatment of structural heart disease with a focus on heart valve therapy and the surgical treatment of cardiac arrhythmias. Heart valve therapy products consist of mechanical and tissue heart valves and heart valve repair products. Surgical arrhythmia therapy products consist of cryotherapy products for the ablation of cardiac arrhythmias. During the year ended December 31, 2008, sales of mechanical heart valves represented approximately 65% of the Company’s revenue.