A wearable flexible sensor for monitoring wrist pulse and its preparation method

Abstract

The invention relates to the field of physiological monitoring sensors and discloses a wearable flexible sensor for monitoring wrist pulse, a preparation method for the wearable flexible sensor for monitoring the wrist pulse, and a monitoring system based on the sensor. The wearable flexible sensor for monitoring the wrist pulse comprises a fabric object, a blocked layer formed on the fabric object and in contact with the wrist pulse region, a sensitive layer formed at the upper surface of the blocked layer, an electrode layer comprising at least two electrodes which lead from the sensitive layer or the surface of the sensitive layer, and a skid-friendly layer, wherein the sensitive layer is made of three-dimensional porous nanometer sensitive material, the skid-friendly layer and the blocked layer are made of high-molecular polymer and have bio-compatibility, and the skid-friendly layer and the blocked layer together package the sensitive layer. The wearable flexible sensor for monitoring the wrist pulse is thin and soft, capable of being processed into different shapes, and capable of being worn on the wrist pulse or attaching to the wrist pulse to monitor the pulse information.

Description

technical field [0001] The invention relates to the field of physiological monitoring, in particular to a wearable flexible sensor for monitoring wrist pulse and a preparation method thereof, and also to a monitoring system based on the wearable flexible sensor for monitoring wrist pulse. Background technique [0002] Pulse condition is a symbol of human arterial rhythm, speed, size, strength, ups and downs, virtual reality, etc. The human pulse condition is regarded as the language of life by Chinese medicine because it contains rich health status information, and thus has received more and more attention from Chinese and foreign medical circles. The comprehensive information such as waveform, amplitude, wave velocity and cycle presented by the pulse wave reflects many blood flow characteristics in the human cardiovascular system to a large extent. [0003] At present, there are also some reports on wearable medical fabrics used to monitor physiological signals at home and ...

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Problems solved by technology

[0003] At present, there are also some reports on wearable medical fabrics used to monitor physiological signals at home and abroad, such as the "life shirt" developed by VivoMetrics in the United States, which can reflect the wearer's breathing situation and record the body's body position changes, but it is not easy to wear and complicated to operate. , Not suitable for use in daily life and work; Italian MiliorofPrado company combines smart sensors in the form of fibers or yarns with fabric technology to monitor breathing and body temperature, but the price is high and the comfort of wearing in daily life is not good, which affects Its practicability; the T-shirt with sensing function developed by FraunhoferIZM in Germany can realize the detection of the wearer's electrophysiological parameters, but long-term contact with the skin will cause skin ulceration

Other instruments used for pulse detection in the prior art also have problems such as complicated operation, high cost, inconvenient to carry, unable to meet daily monitoring needs, poor biocompatibility, uncomfortable to wear, etc.

[0004] The survey found that there are currently few wearable electronic fabrics used to collect pulse signals at the radial artery of the wrist and professional wearable fabrics that can judge human physiological health through the analysis of pulse signals at the radial artery, but can meet the daily needs of ordinary people at any time. There is almost no demand for convenient monitoring, so it is particularly important to develop an intelligent, popular, scientific and convenient pulse monitoring tool

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