CN201814574U - Electrocardio dry electrode with an amplifier - Google Patents

Abstract

The utility model relates to an electrocardio dry electrode with an amplifier. The electrocardio dry electrode with the amplifier is provided with an electrode body and an electrical signal output line, wherein the electrode body is formed by a conducting strip made of metal with good electric conductivity, the conducting strip is shaped like a straw hat and provided with a flat edge, a round protrusion is arranged in the middle of the conducting strip, a plurality of convex points are arranged on the round protrusion, and an electroplated coating is arranged on the outer surface of the conducting strip; the electrical signal output line is arranged on the edge of the conducting strip; a groove is formed below the round protrusion, and a minitype amplifying circuit board is arranged in the groove; an epoxy resin sealing layer is also arranged in the groove; the electrical signal output line is electrically connected with the minitype amplifying circuit board; and a plurality of fixing holes are formed on the peripheral flat edge of the conducting strip. The electrocardio dry electrode with the amplifier is applicable to acquire bioelectric signals, so as to obtain an electrocardiogram of a person. The electrocardio dry electrode with the amplifier is firm and durable, is convenient for a patient to carry, can acquire continuous and stable human bioelectric signals, and is less susceptible to interference and low in cost; and the acquired bioelectric signals are strong and accurate.

Description

The dried electrode of electrocardio that has amplifier

Technical field

This utility model belongs to a kind of medical apparatus and instruments, specifically is a kind ofly to be used to obtain the human biological signal, thereby obtains people's Electrocardiographic dried electrode.This electrode volume is very little, can be worn to clothes, belt etc. easily and dress on the medicated clothing.

Background technology

Electrocardiogram is the important evidence of the various diseases that is used to diagnose the people, particularly heart disease.There are many patients to need the observation of long period, obtain successive Electrocardiographic signal.This situation need be provided with the electrode assembly that can obtain the human biological signal continuously on one's body the patient.For a long time, people use a kind of disposable electrode, and kind electrode is simple in structure, though also can obtain the human biological signal, it carries inconvenience, must cling to be attached on the person; The weak output signal that obtains, stable inadequately; Particularly be easy to be disturbed, cause signal inaccurate, bring difficulty even mistaken diagnosis for the diagnosis of disease by the various assorted signal of surrounding; In addition, existing electrode is made and use cost is also higher.Therefore, need to propose a kind of better electrode of performance of new construction.

The utility model content

The purpose of this utility model is in order to solve the problems of the technologies described above, to propose a kind of dried electrode of electrocardio that has amplifier, and kind electrode is durable, the patient is easy to carry, can obtain the human biological signal of continous-stable, is not subject to disturb, signal is strong, and accurately, cost is also low.

The purpose of this utility model is achieved through the following technical solutions: the dried electrode of electrocardio that has amplifier, be provided with electrode body, output line, it is characterized in that: described electrode body is to be made of the conducting strip that the metal that conducts electricity very well is made, this conducting strip shape such as straw hat, be provided with flat edge all around, the centre is provided with dome upwards, and this dome upper surface is provided with several salient points, in the outside of described conducting strip electrodeposited coating is arranged; Be provided with signal of telecommunication output lead at the edge of conducting strip; Be provided with groove below the dome of described conducting strip, be provided with miniature magnification circuit plate in groove, this circuit board is provided with the bioelectrical signals amplifying circuit; Also be provided with the epoxy sealing layer in the groove, described magnification circuit plate is sealed in the groove; Described signal of telecommunication output lead is electrically connected with magnification circuit plate; Be provided with several fixing holes on the flat edge around the conducting strip; Amplifying circuit on the described magnification circuit plate is provided with signal of telecommunication amplifying triode U1, regulatesresistance R 1, R2, input input, outfan output and earth terminal, input is connected with described conducting strip, outfan links to each other with outside post-amplifier input, and power supply links to each other with the ground end with external power source with earth terminal.

In the groove below the dome of described conducting strip, also be provided with miniature alarm signal controller, this controller is provided with alarm condition discrimination module, alarm signal output module, described alarm condition discrimination module is connected with described amplification circuit of electrical signal, no signal that the described signal of telecommunication is crossed is strong or weak excessively, frequency is too fast or slow excessively, electrode comes off is judged to answers alarm condition, then produce alarm signal, the alarm signal output module is connected with outside post-amplifier input.

Dried electrode of the present utility model is fixed in during use on usefulness person's medicated clothing and gets final product, and uses very convenient; The overall structure of electrode is circular straw hat shape metal electrode, and size is between the diameter 2-5cm, and 3 to 6 fixing holes of electrode perimeter design are fixed on elastic cord or the clothes with screw or line, directly contact with human body skin.The dome that is provided with can outstandingly from fabric contact with human body, on the dome surface salient point is set, and with human body better the relatively moving between electrode slice and human body that contact and prevent is arranged.The main body of electrode is become by conducting metal silver or casting in bronze, and outermost layer is for electroplating silver-silver chloride, and straw hat shape inside grooves encapsulates the bio electricity magnification circuit plate, and this circuit board is provided with amplifying circuit, and amplification is about 2 to 10 times.Encapsulated layer is with the solid gum of epoxy resin, so that waterproof and the corrosion and the destruction that prevent human body perspiration counter electrode and circuit can stably not extracted the required human biological signal of human body electrocardio figure under the situation of pasting electrode on the person.This electrode is installed on the belt can measure human body electrocardio figure, is installed on the clothes and can measures the upper limb electrocardiogram, also can be installed in the electroencephalogram and the Electromyographic bioelectrical signals that are used to measure head on the medicated cap.The alarm signal controller is set, has more guaranteed to use safely and effectively.

Electrode of the present utility model compared with prior art has the following advantages:

1, structure is perfect, can improve the input impedance＞30M of integrated circuit;

2, contact area is big, can reduce polarization potential, and it is stable to obtain the human biological signal;

3, be easy to wear, easy to use;

4, it is low to be repeatedly used cost;

5, can prevent the surrounding signals interference, the bioelectrical signals that obtains is accurate.

Description of drawings

Fig. 1 is a bottom surface of the present utility model perspective view;

Fig. 2 is a top perspective view of the present utility model;

Fig. 3 faces structural representation above of the present utility model;

Fig. 4 is the A-A cutaway view of Fig. 3 of the present utility model;

Fig. 5 is an amplification circuit diagram of the present utility model;

The electrocardiogram example that Fig. 6, Fig. 7 are to use conventional electrodes to record;

The electrocardiogram example that Fig. 8, Fig. 9 are to use electrode of the present utility model to record.

The specific embodiment

Below in conjunction with drawings and Examples this utility model is described further: embodiment:

The dried electrode of electrocardio that has amplifier, the dried electrode of electrocardio that has amplifier, be provided with electrode body, output line, described electrode body is that the 0.8mm that is made by the argent that conducts electricity very well is thick, and the conductingstrip 1 of diameter 2.5mm constitutes this conducting strip shape such as straw hat, be provided with flat edge all around, the centre upwards is provided withdome 5, and this dome upper surface is provided with 6salient points 3, in the outside of described conducting strip electrodeposited coating is arranged; Be provided with signal oftelecommunication output lead 4 at the edge of conducting strip.Be provided with groove below the dome of described conducting strip, be provided with miniaturemagnification circuit plate 7 in groove, this circuit board is provided with the bioelectrical signals amplifying circuit; Also be provided withepoxy sealing layer 6 in the groove, described magnification circuit plate is sealed in the groove; Described signal oftelecommunication output lead 4 is electrically connected with magnification circuit plate; Be provided with 4fixing holes 2 on the flat edge around the conducting strip.Amplifying circuit on the described magnification circuit plate is provided with signal of telecommunication amplifying triode U1, regulatesresistance R 1, R2, input input, outfan output and earth terminal, input is connected with described conducting strip, outfan links to each other with outside post-amplifier input, and power supply links to each other with the ground end with external power source with earth terminal.In the groove below the dome of described conducting strip, also be provided with miniature alarm signal controller, this controller is provided with alarm condition discrimination module, alarm signal output module, described alarm condition discrimination module is connected with described amplification circuit of electrical signal, no signal that the described signal of telecommunication is crossed is strong or weak excessively, frequency is too fast or slow excessively, electrode comes off is judged to answers alarm condition, then produce the alarm signal of high frequency whistling, the alarm signal output module is connected with outside post-amplifier input.

The bioelectrical signals of present embodiment output amplifies through difference and back level amplifying circuit has obtained stable ECG signal.The electrode of present embodiment is through on probation and test, and effect is very good, and is on probation as follows with test result:

1, the performance of design circuit is good: its input impedance is 100M Ω; Traditional electrode design circuit to multipotency arrives 30M Ω.Polarization potential is less than 30mv; The traditional electrode polarization potential is generally at 100mv;

2, convenient to use: the electrode of present embodiment need not to smear electrode cream when using, and is worn on the medicated clothing at each position of human body to get final product;

3, cost is low, can give patient's cost saving: each 1 yuan of traditional disposable electrode, use 3000 every year on average, and expense needs 3000 yuan; 20 yuan of the costs that the electrode of present embodiment is can use 3 years, can save about 8980 yuan, for patient has significantly reduced the treatment expense;

4, capacity of resisting disturbance is strong: the actual test of this electrode 400 routine experimenters, and wherein there are 18 people in the stronger environment of electric field, to use, there is not an example abnormal signal to occur because of environmental disturbances.Information gathering is stable, assert through several experienced doctors, can make the clinical diagnosis electrocardiogram and detect usefulness, and effect is better than traditional electrode.

Accompanying drawing 6,7 is to use traditional electrode to two simultaneously-measured electrocardiograms of experimenter, is interfered easily as can be seen.

Accompanying drawing the 8, the 9th utilizes two simultaneously-measured electrocardiograms of experimenter of electrode pair of present embodiment, can obviously find out, and the electrocardiogram of this electrode measurement, baseline is steady, and signal stabilization disturbs little.

Claims (2)

1. dried electrode of electrocardio that has amplifier, be provided with electrode body, output line, it is characterized in that: described electrode body is to be made of the conducting strip (1) that the metal that conducts electricity very well is made, this conducting strip shape such as straw hat, be provided with flat edge all around, the centre is provided with dome (5) upwards, and this dome upper surface is provided with several salient points (3), in the outside of described conducting strip electrodeposited coating is arranged; Be provided with signal of telecommunication output lead (4) at the edge of conducting strip; Be provided with groove below the dome of described conducting strip, be provided with miniature magnification circuit plate (7) in groove, this circuit board is provided with the bioelectrical signals amplifying circuit; Also be provided with epoxy sealing layer (6) in the groove, described magnification circuit plate is sealed in the groove; Described signal of telecommunication output lead (4) is electrically connected with magnification circuit plate; Be provided with several fixing holes (2) on the flat edge around the conducting strip; Amplifying circuit on the described magnification circuit plate is provided with signal of telecommunication amplifying triode U1, regulates resistance R 1, R2, input input, outfan output and earth terminal, input is connected with described conducting strip, outfan links to each other with outside post-amplifier input, and power supply links to each other with the ground end with external power source with earth terminal.

2. the dried electrode of electrocardio that has amplifier according to claim 1, it is characterized in that: in the groove below the dome of described conducting strip, also be provided with miniature alarm signal controller, this controller is provided with alarm condition discrimination module, alarm signal output module, described alarm condition discrimination module is connected with described amplification circuit of electrical signal, no signal that the described signal of telecommunication is crossed is strong or weak excessively, frequency is too fast or slow excessively, electrode comes off is judged to answers alarm condition, then produce alarm signal, the alarm signal output module is connected with outside post-amplifier input.

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