Electrodermal impedance flexible detection device and electrodermal impedance detection method

Abstract

The invention discloses an electrodermal impedance flexible detection device and an electrodermal impedance detection method. The electrodermal impedance flexible detection device comprises a microprocessor module, an impedance measuring module and at least one microelectrode module contacting with to-be-detected skin and used for collecting electric impedance information, the microprocessor module controls the impedance measuring module to send voltage excitation signals different in frequency to the microelectrode modules and analyzing and transmitting impedance response signals after beingreceived and processed by the impedance measuring module, the microelectrode modules are arranged on the lower surface of a flexible circuit substrate, and a transparent thin film layer is arranged onthe upper surface of the flexible circuit substrate. By utilizing the method, real-time accurate monitoring and analyzing of biological electric impedance on the surface under multiple-frequency conditions can be realized.

Description

technical field [0001] The invention belongs to the field of biomedical engineering, and in particular relates to a skin electrical impedance flexible detection device and a skin electrical impedance detection method. Background technique [0002] There are about 65 million surgical patients in my country every year, and the application of bandage technology for wound treatment is very common. For surgical patients, an important problem faced is wound healing after surgery. The most commonly used method is to wrap the bandage and gauze in a state of compressive stress. This method is simple and easy, but once the wound is wrapped, the doctor cannot monitor the growth of the wound in situ in real time, nor can it treat inflammation in real time. , and wound healing takes a long time. During this long period of time, the wound cannot be accurately observed and diagnosed. Even if it is an operation on the skin surface, the skin will heal in about 10-20 days. If a wound occurs ...

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Problems solved by technology

[0004] The problems existing in the existing small impedance detection devices are: (1) real-time in-situ measurement cannot be realized, and the measurement frequency range is mostly limited to one or several frequencies, and the measurement frequency cannot be adjusted according to the actual situation. It can better reflect the characteristics of skin impedance; (2) There is no overall system integrating measurement electrodes, impedance measurement, pre-processing, data processing, microprocessor and mobile phone graphical interface, and the application depends on other auxiliary equipment And the application scenario is not clear; (3) The measuring device is too large and hard, there is no non-toxic, harmless and non-feeling device to the skin, and the contact with the skin is unstable

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