A 20μW Intra-Cardiac Signal-Processing IC with 82dB Bio-Impedance Measurement Dynamic Range and Analog Feature Extraction for Ventricular Fibrillation Detection

📋 论文概要

该论文提出了一款用于心脏再同步治疗的超低功耗心内信号处理芯片，集成了生物阻抗测量和模拟特征提取功能，实现了82dB的动态范围。

💡 主要创新点

• 提出了一种低功耗模拟特征提取电路，用于心内信号处理。
• 实现了82dB生物阻抗测量动态范围，同时功耗仅为20μW。

🏷 关键词

📄 原文摘要

of multiple intra-cardiac signals is becoming more and more important for Cardiac Resynchronization Therapy (CRT) and for the analysis of the intra-thoracic fluid status [1, 2]. Robust and accurate Heart-Rate (HR) monitoring at the right/left ventricles and the right atrium is essential for an implantable cardiac pacemaker system (Fig. 16.9.1), and ultra-low power consumption is needed. In addition, an accurate motion sensor and thoracic impedance measurement can acquire valuable additional information in clinical research on the intra-cardiac rhythm analysis. As shown in Fig. 16.9.2, our proposed Analog Signal Processor (ASP) IC consists of 3 power-efficient intra-cardiac signal readout channels. Each channel is equipped with a low-power QRS

👥 作者与机构

Sunyoung Kim1, Long Yan1, Srinjoy Mitra1, Masato Osawa2,

Yasunari Harada2, Kosei Tamiya2, Chris van Hoof1,3, Refet Firat Yazicioglu1 imec, Leuven, Belgium, 2Olympus, Tokyo, Japan, 3KU Leuven, Leuven, Belgium 1 The accurate recognition