https://scholars.lib.ntu.edu.tw/handle/123456789/630326
標題: | A Programmable Implantable Microstimulator SoC With Wireless Telemetry: Application in Closed-Loop Endocardial Stimulation for Cardiac Pacemaker | 作者: | Shuenn-Yuh Lee Su, M Y Ming-Chun Liang You-Yin Chen Cheng-Han Hsieh Chung-Min Yang Hsin-Yi Lai JOU-WEI LIN Qiang Fang |
關鍵字: | Endocardial stimulation; pacemaker; power management; programmable implantable stimulator; wireless telemetry; POWER; INTERFACE; CHIP | 公開日期: | 十二月-2011 | 出版社: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | 卷: | 5 | 期: | 6 | 起(迄)頁: | 511 | 來源出版物: | IEEE transactions on biomedical circuits and systems | 摘要: | A low-power, wireless, and implantable microstimulator system on chip with smart powering management, immediate neural signal acquisition, and wireless rechargeable system is proposed. A system controller with parity checking handles the adjustable stimulus parameters for the stimulated objective. In the current paper, the rat's intra-cardiac electrogram is employed as the stimulated model in the animal study, and it is sensed by a low-voltage and low-power monitoring analog front end. The power management unit, which includes a rectifier, battery charging and detection, and a regulator, is used for the power control of the internal circuits. The stimulation data and required clock are extracted by a phase-locked-loop-based phase shift keying demodulator from an inductive AC signal. The full chip, which consumes 48 μW only, is fabricated in a TSMC 0.35 μm 2P4M standard CMOS process to perform the monitoring and pacing functions with inductively powered communication in the in vivo study. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/630326 | ISSN: | 1932-4545 | DOI: | 10.1109/TBCAS.2011.2177661 |
顯示於: | 醫學系 |
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