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Epidermal attached detection system for blood oxygen saturation and preparation of system

A detection system and saturation technology, which is applied in diagnostic recording/measurement, medical science, diagnosis, etc., can solve the problems of large circuit size, difficulty in carrying, low integration, single measurement site, etc., and achieve good biocompatibility, good Stretchability, strong anti-interference effect

Active Publication Date: 2020-04-10
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only has a single measurement site, but also changes in body movements will greatly reduce the adhesion of the sensing system, which will seriously affect the detection accuracy and comfort.
At present, there is no blood oxygen saturation measurement system that can closely fit the skin on the market
In addition to the limitation of the measurement site and the difficulty in ensuring the measurement accuracy, most of the front-end test circuits and back-end signal analysis and processing circuits of most current blood oxygen sensing systems have low integration levels, and the circuits are large and difficult to carry. When detecting human blood oxygen, the back-end circuit often needs to be connected to a computer, monitor and other devices to display and feedback blood oxygen saturation, which cannot communicate with commonly used mobile terminals, and does not have good mobile wearability

Method used

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  • Epidermal attached detection system for blood oxygen saturation and preparation of system
  • Epidermal attached detection system for blood oxygen saturation and preparation of system
  • Epidermal attached detection system for blood oxygen saturation and preparation of system

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Embodiment 1

[0047] Sylgard 184 polydimethylsiloxane (PDMS) can be used, wherein the mass ratio of prepolymer and curing agent can be 11:1, and the prepolymer and curing agent are mixed uniformly and stirred for 5-8 minutes to obtain PDMS , put the PDMS in a vacuum box to evacuate, and let it stand for 40-60 minutes. After all the bubbles in the PDMS are eliminated, the PDMS can be taken out after standing; the air pressure of the vacuum box is 0-0.1 atmosphere.

[0048] Then, after the standing, the PDMS is evenly coated on the common hard substrate 2; for example, the common hard substrate 2 coated with PDMS can be put into the spin coater platform first, and the spin coater is set to Single-step spin coating mode, select the rotation speed 600rpm / min, acceleration 500rpm 2 / min, spin-coating time 30s, the thickness that realizes PDMS on common hard substrate 2 is uniform; On the hot plate, the temperature is adjusted to 60 degrees, and the curing time is 40 minutes, the flexible base la...

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Abstract

The invention belongs to the field of medical health detection equipment, and discloses an epidermal attached detection system for blood oxygen saturation and preparation of the system. The system includes a front-end flexible blood oxygen saturation detection circuit (17) and a back-end signal processing output module, wherein the front-end flexible blood oxygen saturation detection circuit (17)and the back-end signal processing output module are connected with each other, and the front-end flexible blood oxygen saturation detection circuit (17) uses a flexible encapsulating material as an encapsulation layer, has a viscous functional layer (10) on the surface, and is used to detect the blood oxygen saturation of human tissue through the principle of reflective optics; and the back-end signal processing output module is used to send a signal about the blood oxygen saturation to a mobile terminal through a bluetooth antenna transmission module (12). By designing the structure and using flexible materials, the system gives the front-end blood oxygen detection circuit the ability to closely adhere to human skin and conformal performance; and by designing the circuit, the system realizes receiving, processing and sending of front-end sensor data by the back-end signal processing module, and can realize real-time transmission and display of blood oxygen saturation information.

Description

technical field [0001] The invention belongs to the field of medical health detection equipment, and more specifically relates to a skin-attached blood oxygen saturation detection system and its preparation. The detection system is used to realize non-invasive human blood oxygen health monitoring. Background technique [0002] With the continuous development of electronic information technology, emerging electronic fields related to flexible electronics, such as plastic electronics, organic electronics, and printed electronics, have emerged in recent years. Flexible electronics have unique ductility, good wearability and wearability. The advantages of large-scale manufacturing and low cost are widely used in medical, energy, military, education and other fields. The flexible electronic products that have been developed include printed RFID, flexible displays, organic light-emitting diodes (OLEDs), etc., because they are different from traditional hardware. It is widely used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455
CPCA61B5/14551A61B5/14552A61B2562/164A61B2562/12A61B5/6833A61B5/0022
Inventor 吴豪黄鑫杨淦光
Owner HUAZHONG UNIV OF SCI & TECH
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