Flexible non-contact electrocardiogram sensor and making method thereof

Abstract

The invention relates to a flexible non-contact electrocardiogram sensor and a making method thereof. The flexible non-contact electrocardiogram sensor comprises a flexible non-contact electrode; electrocardiogram signals are coupled to the flexible non-contact electrode on the basis of a capacitor coupling principle, and human body skin serves as a polar plate of a capacitor while the electrode functions as an other polar plate; the electrocardiogram signals on the human body skin can be coupled to the electrode; the electrocardiogram signals, which are coupled, are weak and can be easily affected by external interference, therefore a shielding layer is arranged to shield the external interference; and since the human body, the electrode and the shielding layer cannot make into direct contact with each other, insulating layers are arranged between the human body and the electrode as well as between the electrode and the shielding layer. The flexible non-contact electrocardiogram sensor provided by the invention, which is free from the use of a conductive paste, can avoid skin allergy, the electrocardiogram sensor is suitable for long-term monitoring and can be repeatedly used. Theelectrode, which is designed as a round structure, can avoid discomfort in wearing caused by a square structure. The electrocardiogram sensor is simple in making method and low in cost. The flexiblenon-contact electrode is relatively thin and has certain flexibility; therefore, the electrode is firm in welding, and a lead cannot get fallen easily. Therefore, the electrocardiogram sensor has a shielding function and is low in interference by external signals.

Description

technical field [0001] The utility model relates to the technology of measuring electric signals of a human body, specifically a flexible non-contact electrocardiogram sensor and a preparation method thereof. Background technique [0002] The incidence rate of cardiovascular disease is high in our country. In order to prevent and monitor its condition, it is necessary to measure the electrical signals of the human body, among which the central electricity and myoelectricity are particularly important. In order to allow the ECG electrode sensor to better collect the human ECG signal, scientists continue to improve it. [0003] The ECG electrode widely used at present is the contact gel Ag / AgCl wet electrode. When using this kind of electrode, you need to apply conductive paste. Prolonged use will cause allergic contact dermatitis, and it is not suitable for long-term wear. And this wet electrode is all disposable and cannot be reused. [0004] In view of this, this design ...

AI Technical Summary

Problems solved by technology

When using this electrode, it is necessary to apply conductive paste. Long-term use will cause allergic contact dermatitis, and it is not suitable for long-term wear

And this wet electrode is disposable and cannot be reused

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