Systems and methods for programming and logging medical device and patient data are provided. The mechanisms holds the at least three field emission structure layers such that a plurality of interface surfaces of the at least three field emission structure layers correspond to a plurality of interface boundaries between adjacent field emission structure layers. A driver circuit is configured to generate a trimming signal that oscillates at a desired frequency. In this competition, the large quantity of contrast media serves to inhibit the adverse effects of antibody-antigen reactions without the contrast media itself creating antibodies or creating toxicity problems.