title: [Continuous ECG recording for freely moving patients].
abstract: As more and more people are becoming aged in China and many of them tend to suffer from chronic cardiac problems, the long-term dynamic cardiac monitoring for freely moving patients becomes essential. A new design for continuous ECG recording on the freely moving patients at home and/or at work is proposed here. It is miniature in size, using digital technologies of the low gain amplifier, the high resolution analog to digital converter and the real-time digital filter that features > 100dB input signal dynamic range (ISDR), > 100dB common-mode rejection ratio (CMRR), and < 5microV (RMS) internal noise. The device works continuously more than 24 hours with a pair of AAA batteries, and is capable of storing the recorded data into a storage card. The preliminary tests showed that the P-QRS-T waveforms were captured and displayed smoothly in resting, walking, and activities, making the device useful in monitoring and analyzing for the patients on the move.
authors.affiliation: Department of Medical Imaging, Bengbu Medical College, Bengbu 233030, China. shibohome@qq.com
authors.forename: Bo
authors.initials: B
authors.lastname: Shi
authors.forename: Shengyang
authors.initials: S
authors.lastname: Liu
authors.forename: Jianfang
authors.initials: J
authors.lastname: Chen
authors.forename: Genxuan
authors.initials: G
authors.lastname: Zhang
authors.forename: Young
authors.initials: Y
authors.lastname: Tsau
mesh_terms: D015716:Electrocardiography, Ambulatory / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D006801:Humans; D012815:Signal Processing, Computer-Assisted; D012984:Software