Fig. 7. Sample device identification cards for a Medtronic Jewel Plus internal cardioverter–defibrillator (top ) and Thera I DR pacemaker (bottom ). Front (left ) and back (right ) of respective cards. With this information, the manufacturer can be contacted through the toll-free number for patients (see cards) or via a hotline (table 7) for further advice concerning device management. Cards courtesy of Medtronic, Minneapolis, Minnesota.