A programmable implantable microstimulator soc with wireless telemetry: Application in closed-loop endocardial stimulation for cardiac pacemaker

Shuenn Yuh Lee, Mario Yucheng Su, Ming Chun Liang, You Yin Chen, Cheng Han Hsieh, Chung Min Yang, Hsin Yi Lai, Jou Wei Lin, Qiang Fang

研究成果: Article同行評審

60 引文 斯高帕斯(Scopus)

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 $\mu {\rm W}$ only, is fabricated in a TSMC 0.35 $ \mu {\rm m}$ 2P4M standard CMOS process to perform the monitoring and pacing functions with inductively powered communication in the in vivo study.

原文English
文章編號6101569
頁(從 - 到)511-522
頁數12
期刊IEEE transactions on biomedical circuits and systems
5
發行號6
DOIs
出版狀態Published - 2011 十二月

All Science Journal Classification (ASJC) codes

  • 生物醫學工程
  • 電氣與電子工程

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