CN108236462A - Phono sensor integral type applies - Google Patents

Abstract

One-piece application of ECG and heart sound sensors, including a patch with an adhesive layer. The patch has a heart sound probe and multiple ECG electrodes. Both the ECG probe and the heart sound probe are exposed on the adhesive layer. Three of the ECG electrodes Arranged in a triangular structure, the three ECG electrodes form limb leads in pairs. The present invention integrates an electrocardiogram electrode and a heart sound probe at the same time on one applicator, and can simultaneously obtain an electrocardiogram and a phonocardiogram.

Description

ECG heart sound sensor integrated application

technical field

The invention relates to the field of wearable heart health monitoring medical devices, in particular to an integrated electrode applicator for simultaneously monitoring ECG and heart sounds.

Background technique

In the human heart, the sinoatrial node automatically and rhythmically generates current, and the current is transmitted to various parts of the heart in the order of conduction tissue, thereby causing the contraction and relaxation of cardiomyocytes. The excitement from the sinoatrial node is transmitted to the atria and ventricles in a certain way and process, causing the excitement of the whole heart. Therefore, the direction, route, sequence and time of the electrical changes occurring during the excitation of each part of the heart are regular. This bioelectrical change is reflected to the body surface through the conduction resistance value and body fluid around the heart, so that all parts of the body undergo regular electrical changes in each cardiac cycle. The electrical change curve of the heart recorded by placing the guide electrode on a designated part of the limb or body becomes an electrocardiogram.

An ECG is usually recorded with ECG leads. The ECG lead refers to the connection mode in which the input wire and the electrode are placed on the specific test site (positive input terminal), reference site (negative input terminal) and grounding site of the substrate when recording the ECG signal. Among them, if one or two electrodes are connected to the heart, it is called direct lead; if the electrode is far away from the heart (more than 2 times the diameter of the heart), it is called indirect lead; when one or two electrodes are close to the heart, but not Leads that are not directly connected to the heart are called semi-direct leads. At present, the standard 12-lead system is most used clinically, in which the standard I, II, and III leads are indirect bipolar leads, and V1-V6 unipolar chest leads are semi-direct unipolar leads; aVR, aVL, aVF unipolar pressurized limb leads are indirect unipolar leads.

The phonocardiogram displays heart sounds and extra cardiac sounds and murmurs. The phonocardiogram is very useful in determining the shape and frequency composition of heart murmurs. It can better determine the time of heart sounds and murmurs, clearly distinguish the order in which certain heart sounds occur, and identify continuous continuous murmurs in the cardiac cycle. Phonocardiogram has 4 waveforms, atrial systolic wave A, ventricular systolic wave SW, fast filling wave RFW and slow filling wave SFW. The first heart sound S1 usually has four waveforms of A, SW, RFW, and SFW, and the second heart sound S2 has two waveforms of A and P. The tricuspid valve is between the right atrium and right ventricle, the mitral valve is between the left atrium and left ventricle, the pulmonary valve is between the right ventricle and the pulmonary artery, and the aortic valve is between the left ventricle and the aorta. The right atrium is excited, the tricuspid valve opens, blood flows into the right ventricle, the tricuspid valve closes, the right ventricle is excited, and blood flows into the pulmonary artery. After the pulmonary circulation, the blood enters the left atrium, the mitral valve opens, the blood enters the left ventricle, the mitral valve closes, the left ventricle is excited, and the blood flow enters the aorta. The generation of S1 is related to the closure of mitral valve (T1) and tricuspid valve (M1), and the generation of S2 is caused by the closure of aortic valve (A2) and pulmonary valve (P2).

The initiating factors of heart changes when the cardiac potential changes are first manifested. The first heart sound S1 lags behind the R wave of the electrocardiogram, and the second heart sound S2 follows the repolarization wave (T wave) of the ECG.

There are usually five areas in the heart valve auscultation area, ① mitral valve area M: located at the strongest point of the apical pulse, also known as the apical area; ② pulmonary valve area P: in the second intercostal space on the left border of the sternum; ③ aortic valve area A : On the right side of the bottom of the heart, located in the second intercostal space on the right border of the sternum; ④The second auscultation area of the aortic valve E: On the left side of the bottom of the heart, on the third intercostal space on the left border of the sternum, also known as the Erb area, which is conducive to the diagnosis of the aortic valve Insufficiency; ⑤ Tricuspid valve area T: at the left edge of the lower end of the sternum, that is, the 4th and 5th intercostal spaces on the left edge of the sternum. The order of auscultation of heart sounds is: ①The start of mitral valve area M—②Pulmonary valve area P—③Aortic valve area A—④Aortic valve second auscultation area E—⑤Tricusular valve area T. Or: ⑤Beginning of the tricuspid valve area-④Second auscultation area of the aortic valve-③Aortic valve area-②Pulmonary valve area-①Mitral valve area. In a normal heart, the first heart sound is clearest at the apex and the second heart sound is clearest at the bottom of the heart.

Existing ECG or heart sound monitoring instruments need to paste a plurality of ECG electrodes on the surface of the human skin respectively. After the ECG electrodes are in contact with the human body, the heart sound probe is placed in the heart auscultation area, which is easy to cause the gap between the ECG electrodes. If the fit does not match, and the position of the heart electrode pad is deviated, it will affect the correct positioning of the heart sound probe, which is troublesome to use and inefficient.

Contents of the invention

The object of the present invention is to provide an integrated application of ECG and heart sound sensors integrated with ECG electrodes and heart sound probes on one application.

The ECG heart sound sensor integrated application includes a patch with an adhesive layer, which is characterized in that: the patch has a heart sound probe and a plurality of ECG electrodes, and the ECG electrodes and heart sound probes are exposed on the adhesive layer, three of which are The three ECG electrodes are arranged in a triangular structure, and the three ECG electrodes form limb leads in pairs.

The ECG electrode and the heart sound probe are not covered by the adhesive layer, so the heart sound probe and the ECG electrode can be in direct contact with the human skin, so the heart sound probe can measure the bioelectrical changes on the surface of the human body, and the heart sound probe can measure the sound waves generated by the heart movement. Areas other than the ECG electrodes and heart sound probes on the application are covered by the adhesive layer, so that the application can be reliably attached to the human skin.

The scheme of forming six ECG leads: the heart sound probe is a membrane-type auscultation probe, the membrane of the heart sound probe has a central electrode, the central electrode is located in the center of the triangular structure, and the three ECG electrodes form leads with the central electrode respectively. In this way, four ECG electrodes form six leads.

A preferred solution: the central electrode is fixed to the center of the membrane, and the central electrode protrudes from the membrane.

The scheme of forming additional leads: there are additional ECG electrodes on the applicator, and each additional ECG electrode forms a lead with the central electrode. Therefore, N additional ECG electrodes form N leads out of the six leads.

About the scheme of ECG electrodes and heart sound probe wires: all the wires of ECG electrodes and heart sound probes are collected to form a wire bundle with the heart sound probe, and the wire bundle is connected to the signal connector through the connecting wire harness. The signal connector has a one-to-one correspondence with the wires. signal terminal. The signal connector connects the applicator and the ECG electrodes and the heart sound probe on it with the host computer.

The scheme of setting the detector to judge whether the applied ECG electrode is in contact with the skin: ECG application detector, including the shell, weak power supply, probe, detection terminal and signal lamp, and the series indication between the probe and each detection terminal The lamp forms a detection path, all the detection paths are connected in parallel, and the weak power supply supplies power to the detection path. The detection terminals correspond to the signal terminals of the signal connector one by one, and the probe is a conductor capable of contacting the skin.

The detection terminals and signal terminals of the detector are both conductors. After the detection terminals are in good contact with the signal terminals, the probe is in contact with the user's skin. Only when the ECG electrodes are in contact with the user's skin, the indicator light of the corresponding detection channel will light up. . If the indicator lights of one or several detection channels are not on, it means that the corresponding ECG electrodes are not in contact with the skin. After the test is completed, the detector is removed, and the applied signal connector is connected to the host to monitor and obtain the user's electrocardiogram and phonocardiogram.

As a preferred solution, when the signal connector is a raised male connector, the detector is a female connector with a slot or a hole; or when the signal connector is a female connector with a slot or a hole, the detector is a raised male connector. connector.

As an optimal solution, the weak power supply is a detachable battery, or a lithium battery built into the detector, and the detector has a charging port for the lithium battery.

The advantages of the present invention are:

1. Integrate ECG electrodes and heart sound probes on the disposable application at the same time, and use one application to obtain the user's ECG and phonocardiogram at the same time.

2. Integrating multiple leads with more than six leads on one patch to monitor the user's ECG synchronously.

3. The wires required for all leads are led out uniformly, which is conducive to the use of standard signal connectors to connect with the host.

4. The application is one-time, one for each person, clean and hygienic.

5. After the detector is connected to the signal connector, it can detect whether each ECG electrode is in good contact with the skin, and give a status indication, that is, when the ECG electrode is in contact with the skin, the indicator light is on; when the ECG electrode is not in contact with the skin , the indicator light is off.

Description of drawings

Figure 1 is a schematic diagram of the first application.

Fig. 2 is a schematic diagram of the second application with ECG electrodes integrated on the heart sound probe.

Figure 3 is a schematic diagram of a third application with additional ECG electrodes.

Fig. 4 is a schematic diagram of a heart sound probe integrated with ECG electrodes.

Figure 5 is a schematic diagram of a detector.

Detailed ways

In some embodiments, as shown in FIG. 1 , the integrated application of the ECG and heart sound sensor includes a patch 2 with an adhesive layer, and the patch 2 has a heart sound probe 1 and a plurality of ECG electrodes, and the ECG electrodes and The heart sound probes 1 are all exposed on the adhesive layer, and the three ECG electrodes D1, D2, D3 are arranged in a triangular structure, and the three ECG electrodes D1, D2, D3 form limb leads in pairs.

The ECG electrode and the heart sound probe 1 are not covered by the adhesive layer, so the heart sound probe 1 and the ECG electrode can directly contact the human skin, so the heart sound probe 1 measures the bioelectrical changes on the surface of the human body, and the heart sound probe 1 measures the generation of cardiac motion. sound waves. Areas other than the ECG electrodes and the heart sound probe 1 on the application are covered by the adhesive layer, so that the application can be reliably attached to the human skin. The disposable patch integrates the electrocardiographic electrode and the heart sound probe 1 at the same time, and can obtain the user's electrocardiogram and phonocardiogram simultaneously by using one patch.

In some embodiments, the application structure of six ECG leads is formed: as shown in Figure 2, the heart sound probe 1 is a membrane-type auscultation probe, the membrane 11 of the heart sound probe 1 has a central electrode DC, and the central electrode DC is located in the triangular structure. In the center, the three electrocardiographic electrodes D1, D2, and D3 respectively form leads with the central electrode DC. In this way, the three ECG electrodes D1, D2, D3 form three leads in pairs, and the central electrode DC and the three ECG electrodes D1, D2, D3 respectively form three leads, and a total of six leads are applied.

A preferred solution: as shown in FIG. 4 , the central electrode DC is fixed to the center of the membrane 11 , and the central electrode DC protrudes from the membrane 11 . Put the heart sound probe 1 close to the skin, the central electrode DC makes the membrane 11 tense, the tiny gap between the membrane 11 and the skin forms a first-level harmonic cavity, the original cavity of the heart sound probe 1 forms a second-level harmonic cavity, and the two-level harmonic cavity is twice Amplify heart sounds.

In some embodiments, the scheme of forming additional leads: as shown in FIG. 3 , there are additional electrocardiographic electrodes DF on the applicator, and each additional electrocardiographic electrode DF forms a lead with the central electrode DC. Therefore, the N additional ECG electrodes DF form N leads other than the six leads. On one applicator, more than six leads are integrated to monitor the user's ECG synchronously.

In some embodiments, regarding the solution of the ECG electrodes and the wires of the heart sound probe 1: the wires of all the ECG electrodes and the wires of the heart sound probe 1 are collected in the heart sound probe 1 to form a wire bundle, and the wire bundle is connected to the signal connector, and the signal connector has The signal terminals correspond to the wires one by one. The signal connector connects the applicator and the ECG electrodes on it, and the heart sound probe 1 with the host computer. The wires required for all leads are led out uniformly, which is beneficial to use standard signal connectors to connect with the host.

In some embodiments, a detector is set to determine whether the applied ECG electrode is in contact with the skin: as shown in Figure 5, the ECG application detector includes a housing, a weak power supply, a probe 3, a detection terminal and The signal lamp 4, the indicator light connected in series between the probe 3 and each detection terminal forms a detection path, all the detection paths are connected in parallel, and a weak power supply supplies power to the detection path. The detection terminals correspond to the signal terminals of the signal connector one by one, and the probe 3 is a conductor capable of contacting the skin.

The detection terminals and signal terminals of the detector are both conductors. After the detection terminals are in good contact with the signal terminals, the probe 3 is in contact with the user's skin. Only when the ECG electrode is in contact with the user's skin, the indicator light of the corresponding detection channel will light up. rise. If the indicator lights of one or several detection channels are not on, it means that the corresponding ECG electrodes are not in contact with the skin. After the test is completed, the detector is removed, and the applied signal connector is connected to the host to monitor and obtain the user's electrocardiogram and phonocardiogram.

As a preferred solution, when the signal connector is a raised male connector, the detector is a female connector with a slot or a hole; or when the signal connector is a female connector with a slot or a hole, the detector is a raised male connector. connector.

As an optimal solution, the weak power supply is a detachable battery, or a lithium battery built into the detector, and the detector has a charging port for the lithium battery.

After the detector is connected to the signal connector, it can detect whether each ECG electrode is in good contact with the skin, and give a status indication, that is, when the ECG electrode is in contact with the skin, the indicator light is on; when the ECG electrode is not in contact with the skin, the indicator light is on. Lights off.

In some embodiments, using the method of the heart monitoring unit, the heart sound probe for one-time application is attached to the heart sound auscultation area. The triangular structure formed by the three ECG electrodes has the apex on the bottom and the bottom edge on the top, and the adhesive layer is close to the heart sound. Human skin; connect the detector to the signal connector of the one-time application, and the probe of the detector is close to the skin. When all the indicator lights on the detector are on, remove the detector and connect the signal connector to the ECG Cardiogram, open the ECG and ECG, and obtain the user's ECG and phonocardiogram. The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be considered Within the protection scope of the present invention.

Claims (4)

1. Integrated application of ECG and heart sound sensors, including a patch with an adhesive layer, characterized in that: the patch has a heart sound probe and a plurality of ECG electrodes, and both the ECG probe and the heart sound probe are exposed on the adhesive layer. The three electrocardiographic electrodes are arranged in a triangular structure, and two of the three electrocardiographic electrodes respectively form limb leads. 2. The all-in-one application of ECG and heart sound sensors as claimed in claim 1, characterized in that: the heart sound probe is a film-type auscultation probe, the film of the heart sound probe has a central electrode, and the central electrode is located at the center of the triangular structure. The electrodes respectively form leads with the central electrode. 3. The integrated application of ECG and heart sound sensor according to claim 2, characterized in that: the central electrode is fixed to the center of the membrane, and the central electrode protrudes from the membrane. 4. The integrated application of ECG and heart sound sensor according to any one of claims 1-3, characterized in that: the application has additional ECG electrodes, and each additional ECG electrode forms a lead with the central electrode.