A new method of transcutaneous coupling for neural prostheses 2007 In neural stimulation chip designs, there is usually an implanted subdermal microcontroller.Gan et al. offer another chronic solution: simply inductively couple a subdermal stimulation wire to an external stimulator, where the wire starts with a coil, and then leads to a neuron or a population of neurons to stimulate when there is sufficient current flow. Big problem: how do you allow for multiwire selectivity? What are the maximum and minimum sizes of the coils necessary to stimulate neurons? -- with small coil sizes, it may be possible to assign each to pick up only certain wireless signals (right?) percutaneous stimulation deep brain stimulation [9] [9] S. Breit, J. B. Schulz and A. L. Benabid, “Deep brain stimulation,” Cell Tissue Res., vol. 318, pp. 275-288, Oct. 2004. `Recently microstimulators have been developed that can be injected through a hypodermic needle [11]` [11] G. E. Loeb, R. A. Peck, W. H. Moore and K. Hood, "BION system for distributed neural prosthetic interfaces," Med. Eng. Phys., vol. 23, pp. 9-18, Jan. 2001 acetylpromazine isoflurane anesthesia endotracheal tube iodine solution catheter cephalic vein isotonic saline peroneal nerve nerve cuff sutured prolene monofilament sutures lumbodorsal fascia ketoprofen fenatnyl patch ampicillin Amoxil Peterson-type electrodes