A flexible skin electrical impedance detection device and skin electrical impedance detection method

Abstract

The invention discloses a skin electrical impedance flexible detection device and a skin electrical impedance detection method, wherein the skin electrical impedance flexible detection device includes: a microprocessor module, an impedance measurement module and at least one micro-electrode module, the micro-electrode module and The skin contact to be tested is used to collect electrical impedance information, and the microprocessor module controls the impedance measurement module to send voltage excitation signals of different frequencies to the microelectrode module, and analyzes and transmits the impedance response signal received and processed by the impedance measurement module ; The micro-electrode module is arranged on the lower surface of the flexible circuit substrate, and the upper surface of the flexible circuit substrate is provided with a transparent film layer. By using this method, the accurate monitoring and analysis of the bioelectrical impedance of the surface can be realized in real time under the condition of multiple frequencies.

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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