Malleable flexible electrocardiogram electrode and manufacturing method thereof

Abstract

The invention discloses a malleable flexible electrocardiogram electrode and a manufacturing method thereof, belonging to the technical field of medical instrument. The electrocardiogram electrode comprises a flexible electrode layer, an upper encapsulation layer above the flexible electrode layer and a lower encapsulation layer below the flexible electrode layer, and is characterized in that theflexible electrode layer comprises two unit structures, and one of the unit structures comprises a straight wire, a serpentine structure connected with the straight wire, and three parts of a spider web structure connected with the serpentine structure; the spider web structure is a central symmetrical pattern, and the flexible electrode layer is an axisymmetrical structure; and the upper encapsulation layer and the lower encapsulation layer cover two parts of a straight wire and a serpentine structure. In the electrocardiogram electrode, the spider web structure contacting human skin is a nearly circular stretchable structure, has stretchability in all directions of the plane, and can adapt to various deformation generated when the human body moves; and the electrocardiogram electrode hasthe advantages of low impedance, good impedance stability and strong anti-motion interference ability, and can be used in the field of electrocardiogram measurement.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an extensible flexible electrocardiogram electrode and a manufacturing method thereof. Background technique [0002] The bioelectrical measurement and recording of different parts of the human body can reflect the excitability changes of the corresponding parts, which is an important basis for clinical diagnosis. The measurement and recording of ECG changes are the main means of modern medicine to diagnose heart diseases. The detection of ECG signals requires conductive electrodes. Currently, the ECG electrodes widely used in the market are silver / silver chloride electrodes. This electrode is a wet electrode, which is adhered to the skin through conductive glue, so better quality ECG electrodes can be obtained. electric signal. However, the adhesion of the conductive adhesive will cause discomfort to the human body. Clinically, the electrodes need to be repl...

AI Technical Summary

Problems solved by technology

However, the current dry electrodes generally have some problems: the electrode conductivity is low, the electrode-skin impedance is high, and the signal quality is not good; the electrode is only flexible but not stretchable, and the electrode is easy to break free during exercise; The interference ability is poor, the interface is not strong enough, and the thickness is not thin enough; the production process of electrodes is complicated, such as graphene electrodes, the materials used need to be prepared by chemical methods, and the production cost is high

These problems greatly limit the large-scale production and popularization of dry electrodes.

[0004] Northwestern University John A.Rogers and academician Huang Yonggang proposed a flexible ECG electrode with a fractal structure, which only has stretchability in the horizontal and vertical directions and cannot meet the complex movement needs of the human body.

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