A Sleep Apnea Monitoring IC for Respiration, Heart-Rate, SpO2 and Pulse-Transit Time Measurement Using Thermistor, PPG and Body-Channel Communication

被引：13

作者：

Kim, Dong-Hee ^{[1
]}

Lee, Eunseok ^{[1
]}

Kim, Jihwan ^{[1
,2
]}

Park, Pangi ^{[1
]}

Cho, SeongHwan ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Sch Elect Engn, Daejeon 34141, South Korea

[2] Samsung Elect, Hwaseong 18448, South Korea

来源：

IEEE SENSORS JOURNAL | 2020年 / 20卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Photoplethysmogram; pulse transit time; body channel communication; respiration; multi-modal sensor; PRESSURE; SYSTEM; SURROGATE;

D O I：

10.1109/JSEN.2019.2950367

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a low power bio-signal acquisition system for sleep apnea, which can measure respiration, heart rate, SpO(2), and pulse transit time (PTT). For respiration, a nasal airflow sensor with a thermistor is used. For PTT that can serve as a surrogate for blood pressure during sleep, two photoplethysmogram (PPG) sensors are employed at the upper arm and the finger. For improved comfort during sleep, body channel communication (BCC) is used to remove long wires. To reduce power consumption and circuit complexity, sensor's analog front-end is implemented by using a current-controlled oscillator which is also shared by BCC transmitter that employs analog frequency modulation. Implemented in 0.18 mu m CMOS, the proposed IC consumes less than 3.6 mW from a 1.8 V supply, while occupying 0.145 mm(2) of active area.

引用

页码：1997 / 2007

页数：11

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