DUBLIN--(BUSINESS WIRE)--Covidien plc (NYSE: COV) today reported results for the fourth quarter of fiscal 2011 (July - September 2011). Net sales of $3.08 billion increased 15% from the $2.67 billion reported in the fourth quarter a year ago. The quarterly sales growth rate benefited from foreign exchange rate movement, which added about four percentage points, and the inclusion of an extra selling week in the fourth quarter of 2011, which added approximately seven to eight percentage points.
