For comparison, today’s ultra-low-power implantable biomedical devices require 0.3μW for cardiac-activity sensing, 10 to 100 μW for pacemakers, 100 to 2000 μW for cochlear implants, and 1 to 10 mW for neural recording. An advantage of this design is that it’s scalable: two (or more) units can be connected in parallel for a corresponding increase in power output. Initial testing is done using a mechanical shaker, of course, to simulate the motion of the myocardium and the corresponding deformation of a pacemaker lead – see figure 3.
The NIH Director's Transformative Research Award is part of the High-Risk, High-Reward Research program supporting “individuals or teams proposing transformative projects that are inherently risky and untested but have the potential to create or overturn fundamental paradigms and may require very large budgets.”
This article was first published in Electronic Design - www.electronicdesign.com