Drying disposable flexible electrocardio-electrode and preparation method thereof

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a drying disposable flexible electrocardio-electrode and a preparation method thereof. The electrocardio-electrode comprises a carbonized sponge layer, an electret gel layer, an isolation bottom layer and a conductive buckle; the electret gel layer surrounds the carbonized sponge layer and serves as a protection layer of the sponge layer; the isolation bottom layer is arranged between the carbonized sponge layer and the conductive buckle and used for isolation and protection; the carbonized sponge layer is connected with the conductive buckle through a metal wire. The preparation method comprises the steps of carbonized sponge preparation and electrocardio-electrode assembling. The flexible electrocardio-electrode is good in flexibility and elasticity and is more closely attached to the body surface skin, and the motion artifact resistant capacity is higher; the electrode-skin impedance is low, the electric conductivity is excellent, polarization is not likely to be generated, and interference and noise are resisted. In addition, the carbonized sponge generation cost is extremely low, andthe use cost can be greatly lowered. The electrocardio-electrode is easy to operate, short in manufacturing cycle and easy to produce in a large scale.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an electrocardiographic electrode and a preparation method thereof. Background technique [0002] In each cardiac cycle, the heart is accompanied by changes in bioelectricity during the successive excitations of the pacemaker, atrium, and ventricle. These bioelectrical changes are called ECG. Since the tissues and body fluids around the heart can conduct electricity, the heart can be used as a power source, and the human body can be used as a volume conductor to conduct the sum of changes in the action potential of cardiomyocytes to the body surface. Therefore, there are potential differences or equipotentials between different body surface locations, and these changes in electrical activity are collected to form a graph, which is the electrocardiogram. By analyzing the electrocardiogram, we can understand the state of the human heart. [0003] The electroca...

AI Technical Summary

Problems solved by technology

At present, the electrocardiogram electrodes used clinically are Ag / AgCl electrodes with conductive paste. Long-term use will bring the following problems: (1) Since the electrode material does not have air and moisture permeability, long-term use will cause skin discomfort; (2) ) The conductive paste will gradually dry up under long-term use conditions, which will cause a significant change in the contact resistance between the electrode and the skin, affecting the stability of the ECG signal; (3) The existence of the conductive paste is also a factor for discomfort reactions such as skin allergies

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