Electrocardiogram cable and manufacturing method thereof

Abstract

The invention discloses an electrocardiogram cable and a manufacturing method thereof. The electrocardiogram cable comprises a strengthening wire on which a plurality of side-by-side copper wires are spirally wound, wherein an acrylic insulating resin is covered on the outer surface of the strengthening wire to form an electrocardiogram inductor. An ethylene carbon resin layer and an insulated vinyl resin layer can be coated on the outer surface of the electrocardiogram conductor in turn, and the side-by-side copper wires are spirally wound on the outer surface of the electrocardiogram conductor; a human body connection terminal can be connected to one end of the electrocardiogram conductor in a pressing mode, the other end of the electrocardiogram conductor is connected with an electric wire tail end of a multi-core electromagnetic shielding wire through a resistor, and the resistor is subjected to shielding treatment; and a plug and an annular magnetic ring for an electrocardiogram machine are connected to the other end of the multi-core electromagnetic shielding wire. A signal amplifier and an analog / digital (A / D) converter are arranged between the electrocardiogram conductor and the multi-core electromagnetic shielding wire in turn. By the electrocardiogram cable, the bending resistance and the tensile strength of the cable are enhanced, and the using cost is reduced; electromagnetic interferences can be well shielded, and the signal stability and the accuracy are improved; lead pollution is avoided, so that the electrocardiogram cable is relatively environment-friendly; and the electrocardiogram cable can be connected with a personal computer (PC) to manufacture electrocardiograms.

Description

technical field [0001] The invention relates to an electrocardiographic lead wire and a manufacturing method thereof, which are applied to the connection between electrocardiographs, electrocardiographic monitors and other instruments and human bodies, and for collecting human body bioelectric signals. Background technique [0002] The lead wire is a wire device that connects electrocardiographs, ECG monitors and other instruments with the human body, so as to realize the transmission of bioelectrical signals such as ECG signals, myoelectric signals, brain waves and nervous system signals to electrocardiographs and other instruments. [0003] Existing lead wires usually contain human body connection terminals, several electrocardiographic induction wires, relay boxes, round multi-core wires, and installation plugs connected to electrocardiographs. There are usually certain shielding measures in the wires to shield external electromagnetic interference . [0004] However, th...

AI Technical Summary

Problems solved by technology

Sometimes it also contains components such as resistors and magnetic rings, but the relay box is ignored as a part of the lead wire and added with a shielding layer, so that the lead wire cannot completely shield the interference of external signals. Frequently used in electronic information products and electromechanical products Today, there are a lot of electromagnetic interference signals in the environment. If these signals are not effectively shielded, the accuracy of the measurement results will be affected when measuring the weak bioelectrical signals of the human body.

[0006] The existing lead wires do not have indicator lights, and whether the lead wires are in good contact with the human body depends on the subjective judgment of the medical staff or through instrument identification. If the lead wires are not in good contact with the human body, some unnecessary troubles and measurement errors will occur, which will give inconvenience to medical staff

[0007] Usually the lead wire only plays the role of connecting and transmitting the signal, without the function of amplifying the signal, and the measurement depends on a special electrocardiograph or similar equipment, which cannot be directly connected to a personal computer for measurement

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