Medical device giant Medtronic (MDT) was trading near a 13-year high Monday as the company prepared to report its fiscal Q2 results before the open Tuesday. Analysts polled by Thomson Reuters estimate that Medtronic made 90 cents a share in the quarter ended Oct. 25, up 2% from the year-earlier quarter. Sales are also estimated to have risen 2%, to $4.18 billion. Medtronic stock on Thursday hit its highest point since January 2006, at 58.85, after