標題: | A Programmable Implantable Microstimulator SoC With Wireless Telemetry: Application in Closed-Loop Endocardial Stimulation for Cardiac Pacemaker |
作者: | Lee, Shuenn-Yuh Su, Mario YuCheng Liang, Ming-Chun Chen, You-Yin Hsieh, Cheng-Han Yang, Chung-Min Lai, Hsin-Yi Lin, Jou-Wei Fang, Qiang 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Endocardial stimulation;pacemaker;power management;programmable implantable stimulator;wireless telemetry |
公開日期: | 1-十二月-2011 |
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 mu W only, is fabricated in a TSMC 0.35 mu m 2P4M standard CMOS process to perform the monitoring and pacing functions with inductively powered communication in the in vivo study. |
URI: | http://dx.doi.org/10.1109/TBCAS.2011.2177661 http://hdl.handle.net/11536/21311 |
ISSN: | 1932-4545 |
DOI: | 10.1109/TBCAS.2011.2177661 |
期刊: | IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS |
Volume: | 5 |
Issue: | 6 |
起始頁: | 511 |
結束頁: | 522 |
顯示於類別: | 期刊論文 |