Name
Abstract | ||
|---|---|---|
The authors present the design of an integrated circuit for wireless neural stimulation, along with benchtop and in-vivo experimental results. The chip has the ability to drive 100 individual stimulation electrodes with constant-current pulses of varying amplitude, duration, interphasic delay, and repetition rate. The stimulation is performed by using a biphasic (cathodic and anodic) current source, injecting and retracting charge from the nervous system. Wireless communication and power are delivered over a 2.765-MHz inductive link. Only three off-chip components are needed to operate the stimulator: a 10-nF capacitor to aid in power-supply regulation, a small capacitor (<100 pF) for tuning the coil to resonance, and a coil for power and command reception. The chip was fabricated in a commercially available 0.6-mu m 2P3M BiCMOS process. The chip was able to activate motor fibers to produce muscle twitches via a Utah Slanted Electrode Array implanted in cat sciatic nerve, and to activate sensory fibers to recruit evoked potentials in somatosensory cortex. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/TBCAS.2009.2032268 | IEEE Trans. Biomed. Circuits and Systems |
Keywords | DocType | Volume |
Wirless integrated circuit | Journal | 3 |
Issue | ISSN | Citations |
6 | 1932-4545 | 29 |
PageRank | References | Authors |
2.51 | 14 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Brandon Kimball Thurgood | 1 | 29 | 2.51 |
| David J. Warren | 2 | 62 | 6.43 |
| Noah M. Ledbetter | 3 | 33 | 3.55 |
| Gregory A. Clark | 4 | 45 | 8.22 |
| Reid R Harrison | 5 | 222 | 57.49 |