Title :
A wirelessly powered log-based closed-loop deep brain stimulation SoC with two-way wireless telemetry for treatment of neurological disorders
Author :
Rhew, Hyo-Gyuem ; Jeong, Jaehun ; Fredenburg, Jeffrey A. ; Dodani, Sunjay ; Patil, Parag ; Flynn, Michael P.
Author_Institution :
Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
A log-based closed-loop Deep Brain Stimulation system detects and processes low-frequency brain field signals to optimize stimulation parameters. The fully self-contained single-chip system incorporates LNAs, a log-ADC, digital log-filters, a log-DSP with a PI-controller, current stimulators, a two-way wireless transceiver, a clock generator, and an RF energy harvester. The 2×2mm2 180nm CMOS prototype consumes 468μW for recording and processing neural signals, stimulation, and for two-way wireless communication.
Keywords :
CMOS integrated circuits; biomedical electronics; biomedical telemetry; medical signal processing; patient treatment; prosthetics; radiotelemetry; system-on-chip; CMOS prototype; LNA; PI-controller; RF energy harvester; SoC wirelessly powered log-based closed-loop deep brain stimulation system; clock generator; current stimulators; digital log-filters; fully self-contained single-chip system; log-ADC; log-DSP; low-frequency brain field signal process; neural signal processing; neurological disorder treatment; power 468 muW; stimulation parameter optimization; two-way wireless communication; two-way wireless telemetry; two-way wireless transceiver; Clocks; Digital signal processing; Prototypes; Radio frequency; Satellite broadcasting; System-on-a-chip; Wireless communication;
Conference_Titel :
VLSI Circuits (VLSIC), 2012 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-0848-9
Electronic_ISBN :
978-1-4673-0845-8
DOI :
10.1109/VLSIC.2012.6243794
