WARREN, N.J.--(BUSINESS WIRE)--Cordis Corporation, a leader in transforming cardiovascular care, announced three new senior-level appointments. Carl J. St. Bernard has been named Vice President, U.S. Sales and Marketing; Paul I. Chang, M.D., has been named Vice President, Worldwide Clinical Research and Operations; and Ryan H. Saadi, M.D., M.P.H., has been named Vice President, Health Economics and Reimbursement.