A micro-elastic nano pressure sensor and health monitoring system
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A pressure sensor and nanotechnology, applied in the field of medical sensing and intelligent medical treatment, can solve the problems of weak signal output and insufficient sensitivity, and achieve the effect of large signal output, low cost and strong portability
Active Publication Date: 2020-04-10
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
With the advantages of comfort, convenience, low price, no effect on sleep, simple operation, relatively accurate and comprehensive information, the system has strong competitiveness in the field of portable non-contact flexible intelligent medical care; but the main defect of PVDF flexible pressure sensor is Because the signal output is relatively weak, it is not sensitive enough to small signals such as breathing and heartbeat, which may easily cause misjudgment
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Embodiment 1
[0032] In Embodiment 1, the material of the flexible polymer insulating film 211 is polyethylene terephthalate, polytetrafluoroethylene, polystyrene, polyimide, polyethylene, polydimethylsiloxane , fluorinated ethylene propylene copolymer, polychlorotrifluoroethylene, polyvinylidene fluoride, ethylene tetrafluoroethylene copolymer, polymethyl methacrylate or polyethylene-polyvinyl acetate copolymer, or for coating with resident Pole material silicon nitride, silicon dioxide, perfluorocyclic polymer CYTOP or polymer of parylene.
[0033] The flexible polymer film 221 with multiple microelastic structures is made of polyethylene-polyvinyl acetate copolymer, fluorinated ethylene-propylene copolymer, polyethylene terephthalate, polytetrafluoroethylene, Polystyrene, polyimide, polyethylene, polydimethylsiloxane, polychlorotrifluoroethylene, polyvinylidene fluoride, ethylene tetrafluoroethylene copolymer or polymethylmethacrylate.
[0034] The material of the first metal conductive l...
Embodiment 2
[0035] The structure of the microelastic body nano pressure sensor that embodiment 2 provides is as figure 2 As shown, among them, figure 2 (a) is the three-dimensional cross-sectional schematic diagram of the microelastic body nano pressure sensor that embodiment 2 provides; figure 2 (b) is a schematic cross-sectional view of the microelastic nano pressure sensor provided in embodiment 2; through the micro elastic nano pressure sensor provided in embodiment 2, the micro elastic nano pressure sensor provided in embodiment 1 is folded and formed in series , can improve sensitivity, save space, and facilitate packaging.
[0036] In the foregoing embodiments, before being assembled into a microelastic nano pressure sensor, the flexible polymer insulating film is polarized to improve the output response of the micro elastic nano pressure sensor to pressure; the flexible polymer film The microelastic structure can be hemispherical, triangular, pyramidal or cuboidal.
[0037] ...
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Abstract
The present invention discloses a micro-projectile body nanometer pressure sensor and a health monitoring system,wherein a pressure sensing part of the micro-projectile body nanometer pressure sensor comprises a first assembly and a second assembly and is used to monitor the mechanical motion, such as the human respiration, the heartbeat, the body movement, the cough, etc., and convert the mechanical motion into the electric signals, and the health monitoring system comprises the micro-projectile body nanometer pressure sensor, a multi-stage amplifying and filtering circuit, an analog-digital conversion module and a communication module which are connected orderly. An AC signal obtained by the micro-projectile body nanometer pressure sensor is filtered to obtain three simulation electric signals of a respiration signal, a heartbeat signal and a body movement signal, and the electric signals are sent by the communication module to an intelligent terminal after the analog-digital conversion. By processing and analyzing the received digital signals, the human respiration condition, the heartbeat condition and the body movement condition can be grasped, and the sleep status and the physical status can be monitored. The micro-projectile body nanometer pressure sensor and the health monitoring system of the present invention have the characteristics of being flexible, portable, cheap and comfortable, can monitor various human body physiological signals real-timely and sensitively, and can work normally on the condition of not contacting the human body directly.
Description
technical field [0001] The invention belongs to the technical field of medical sensing and intelligent medical care, and more specifically relates to a microelastic nano pressure sensor and a health monitoring system. Background technique [0002] With the rapid development of mobile Internet, smart home, smart medical and other fields, portable non-contact smart health monitoring systems that can monitor vital signs such as human breathing, heartbeat, and body movement, and reflect heartbeat, breathing, sleep, and vital conditions have attracted much attention. . On the one hand, through active health monitoring, the physical condition of the subject can be known at any time, so as to give a reminder before the danger comes to avoid serious life-threatening; The physical condition of the tester, so as to give care and love. To achieve portable non-contact intelligent health monitoring and management, in addition to relying on modern wireless communication and Internet tec...
Claims
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Application Information
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