Multimodal cardiovascular information monitor using piezoelectric transducers for wearable healthcare

Abstract

This article describes a multimodal cardiovascular information measurement method using a wearable device composed of piezoelectric transducers. Cardiovascular diseases are increasing with the aging population, and they constitute a significant portion of the causes of death and long-term care. In recent years, daily-life monitoring using wearable sensor devices has attracted particular attention for the prevention and early detection of cardiovascular diseases. However, recent wearable devices can only measure limited cardiovascular information such as the heart rate. In contrast, the proposed method can simultaneously measure heart rate variability, pulse wave propagation velocity, and blood flow velocity using only a piezoelectric transducer array.

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“…Liu et al found that the multimodal sensor device was easy to operate and could quickly obtain stable and reliable physiological information [103]. Similarly, Okano et al measured multimodal data to monitor cardiovascular information using a wearable device at the wrist, such as HRV, PWV, and blood flow velocity [104]. The multi-modality analysis can enrich the physiological value of the radial pulse wave.…”

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“…Heart rate monitoring is of great importance in preventing disease. Increasing medical costs due to increased patients with noncommunicable diseases (NCD) have become a critical problem worldwide 4 . One of the main NCDs is cardiovascular disease.…”

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