Cardiac pacemaker malfunction | Ventriculoperitoneal shunt malfunction | Implantable defibrillator malfunction | Inappropriate pacemaker firing | Device malfunction | Peritoneal catheter dysfunction | Prosthesis closing defect | Prosthesis opening defect | Mechanical device firing issue | Incomplete device expansion | Automated external defibrillator malfunction | Device motor malfunction | Device component malfunction | Device delivery system malfunction | Pump motor stall | Catheter dysfunction | Diagnostic device malfunction | Dose counter malfunction | Premature device expansion | Device inappropriate reset | Device reset issue | Device failure to cycle | Device failure to align | Device misfire | Device failure to self-test | Device suction event | Ventricular assist device suction event | Removable device component cannot be removed | Auto-injector viewing window blocked |