Wearable footwear sensor arrays for detection of cardiac events, body motion, and muscular actions

Abstract

A foot-based wearable system disposed proximate to the dorsalis pedis artery can detect cardiac and muscular activities. Utilizing flexible iontronic sensing (FITS) technology, a sensing array detects both cardiovascular functions, such as heart rate, ECG, and respiration and motion artifact signals with a spatial reference to muscular activities based on the orientation of the array. Individual tendon responses are analyzed and correlated to different pedal gestures, from which multi-channel signals can be used to distinguish different activities. Wearable articles of the invention include a platform to simultaneously analyze both vital signals and body activities from the cardiac waveforms and muscular responses in a natural and unnoticeable fashion. The data-collecting wearable system provides a means to assess personalized health and daily activities on a continuous basis.

Description

Background technique [0001] This application claims priority over U.S. Provisional Application 62 / 742,209, filed October 5, 2018, entitled "Flexible Ionization-Sensing Wearable Device for Detecting Foot Pulse Waves and Muscle Activity," and is hereby specifically incorporated for emphasis as References for this application. [0002] Wearable devices provide a very close physical and data interface between the human body and mobile computing devices. With the development of medical technology, some body signals such as posture, gait, and daily body activities can be captured by body sensors and converted into electronic signals, which are then interpreted and converted into physiological data for display to users. In addition, measurement and analysis of cardiovascular-related events such as pulse, blood volume changes, blood oxygen levels, electrocardiogram, electroencephalogram, and respiration have been successfully achieved through wearable sensor interfaces. [0003] A c...

AI Technical Summary

Problems solved by technology

[0007] Thus, despite attempts to utilize sensors around the human foot to measure important physiological parameters, the limitations of sensor arrays and the resistance encountered in incorporating sensors into wearable footwear have prevented further progress in developing sensor arrays incorporated into footwear. , with a view to measuring a wider range of physiological parameters

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