Bionic flexible dry electrode and manufacturing method thereof

Abstract

The invention discloses a bionic flexible dry electrode which comprises a conductive bionic electrode sheet and an external interface. A bristle structure imitating a gecko is arranged on the surface of the conductive bionic electrode sheet. The bionic flexible dry electrode is of a structure of three levels. The first level and the second level of the electrode sheet are prepared through the micro-reversed mold technology. A mold of a two-level structure is prepared through a PDMS. A mixture CPDMS of the PDMS and a CNT is filled into the mold. After the CPDMS is solidified, a film provided with the two-level structure and prepared by the CPDMS is taken down. Then, the third level is formed on the second level of the film of the two-level structure through the inkin technology. The micro-machining process technology is adopted to manufacture the dry electrode, so that the dry electrode has viscidity and flexibility and can be directly adhered to the skin of a user without harm to the skin of the user. The dry electrode can be better in contact with the skin so that the stability of a signal and the comfort of the user can be improved. After the bionic flexible dry electrode is disinfected and cleaned, the viscidity of the bionic flexible dry electrode is not influenced, so that the bionic flexible dry electrode is reusable and has the advantages of environment friendliness. Compared with an existing dry electrode, the bionic flexible dry electrode is obvious in performance and ingenious in structure.

Description

technical field [0001] The invention relates to an electrode for measuring electrophysiological signals in the medical field, in particular to a bionic flexible dry electrode prepared by a micromachining process. Background technique [0002] With the improvement of living standards, people pay more and more attention to their health status, and the electrophysiological signals of the human body can reflect the health status of the human body, so long-term monitoring of electrophysiological signals is also particularly important. Electrophysiological signals include: EEG signals, ECG signals, myoelectric signals, oculoelectric signals, etc. Wet electrodes are commonly used in medicine to collect electrophysiological signals. Wet electrodes also need to be used with conductive glue during use. Since the conductive glue is easy to dry out, it will cause the attenuation of the collected signal, which is very unfavorable for long-term monitoring of electrophysiological signals....

AI Technical Summary

Problems solved by technology

However, the dry electrode prepared by this method has a large volume, and it does not have good contact with the skin when used, and it needs tools such as adhesive tape to fix it on the skin. Larger motion artifacts are introduced into the signal, and this electrode discomfort is not compatible with long-term monitoring of electrophysiological signals

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