CN113842148B - Three-lead patch type L-shaped long-time-path dynamic electrocardiograph and three-lead connection method - Google Patents

Abstract

A three-lead patch type L-shaped long-time dynamic electrocardiograph (20) is provided, which comprises 1 st to 4 th silver chloride sheets (R1, R2, L1, zo) exposed from the bottom surface of a housing (1). During detection, the 1 st to 3 rd silver chloride tablets are used for picking up electrocardiographic detection signals at the 1 st to 3 rd signal pick-up point positions. A chest "-" shaped lead B is formed between the 1 st silver chloride piece (R1) and the 3 rd silver chloride piece (L1) and is used for recording the P wave characteristic voltage of the left atrium. A chest 'I' -shaped lead A is formed between the 1 st silver chloride piece (R1) and the 2 nd silver chloride piece (R2) and is used for recording the P-wave characteristic voltage of the right atrium. A chest "/" shaped lead C is formed between the 2 nd silver chloride piece (R2) and the 3 rd silver chloride piece (L1) and is used for recording the mixed P-wave characteristic voltage of the left atrium and the right atrium. The left and right atrial electrical activity is selectively amplified by aiming at three non-isoelectric parts of the body surface, so that the P wave is displayed more clearly and obviously.

Description

Three-lead patch type L-shaped long-time-path dynamic electrocardiograph and three-lead connection method

Technical Field

The invention relates to a medical instrument for dynamic electrocardiograph acquisition and detection, in particular to a three-lead patch type L-shaped long-time dynamic electrocardiograph recorder and a three-lead connection method.

Background

An electrocardiograph records an electrical change activity curve in which the bioelectrical changes of the heart itself are reflected to the surface by placing a measuring electrode at a certain portion of the skin surface of a subject, thereby obtaining an Electrocardiogram (ECG) which is commonly used in clinic. Dynamic electrocardiographic recording refers to recording and acquiring a large amount of ECG data continuously through multiple channels in a human body for 24-72 hours, and is used for diagnosing transient electrocardiographic abnormal events such as arrhythmia, myocardial ischemia and the like.

Wherein, the circuit connection method for recording the electrocardiogram is called electrocardiogram lead by placing electrodes at different parts of the human body and connecting the electrodes with the positive electrode and the negative electrode of the electrocardiograph ammeter through lead wires.

The international universal lead body widely adopted at present is called a conventional 12-lead system, including a limb lead connected to a limb and a chest lead connected to a chest. The limb leads comprise standard limb leads and pressurized unipolar limb leads which are bipolar leads, the chest leads are unipolar leads, the positive electrode is arranged at a position specified by the chest wall during detection, and 3 electrodes of the limb leads are respectively connected with the negative electrode through resistors to form a central electric terminal.

However, the electrocardiographic and dynamic electrocardiographic recordings of lead systems on the basis of conventional standard 12 leads do not meet the particular need for clinical electrocardiographic detection. In particular, the P-wave signal of the atrial voltage of the heart cannot be detected with high quality.

However, high quality detection of P-waves is of particular interest for a variety of cardiovascular diseases. This is because normal cardiac electrical activation begins at the sinus node and is conducted first to the right atrium, through the bundle of atria to the left atrium, forming a P-wave on the electrocardiogram. The P-wave thus represents atrial activation, the first half represents atrial activation of the right atrium, and the second half represents atrial activation of the left atrium. It is the activation of the left and right atria that sends the blood to the left and right ventricles, and then the left and right ventricles activate the blood to the lungs and the whole body for oxygen exchange, thus completing the metabolism and continuation of the living body.

The analysis of P wave has important significance for diagnosis and differential diagnosis of arrhythmia.

The occurrence of P-wave abnormalities is clinically seen in a variety of diseases. The high-quality P wave detection and accurate judgment of the morphology and rhythm of the P wave are of great significance to clinical electrocardio. Such as pulmonary heart disease, coronary heart disease, hypertension, congenital heart disease, electrolyte and endocrine disorders. Especially various serious arrhythmias such as atrioventricular block, atrial fibrillation, atrial flutter, tachycardia and indoor block.

In addition, the conventional portable dynamic recorder adopts a mode that an electrode plate is separated from a collecting device, and adopts a long lead wire as an electrode wire. However, the snap-fastener mode between the electrode and the electrode wire limits the normal activities of the patient, such as human body, to a certain extent, affects the normal life of the patient, has poor test degree of the tested body, and the swing of the lead also affects the quality of electrocardiosignal acquisition, so that the longer-term recording is not suitable, and the detection rate of the transient electrocardiosignal abnormal event cannot be improved clinically.

Disclosure of Invention

In order to solve the problems, the invention aims to provide an L-shaped lead connection type bipolar chest lead method and a three-lead patch type L-shaped long-term dynamic electrocardiograph.

According to an aspect of the present invention, there is provided a three-lead patch type long-time-distance dynamic electrocardiograph, comprising a housing and an electrocardiograph lead device integrally packaged in the housing, wherein the electrocardiograph lead device comprises: and 1 st to 4 th silver chloride pieces integrated in the case and exposed from a proximal bottom surface of the case, wherein the 1 st silver chloride piece is used for detecting an electrocardiosignal picked up from a 1 st signal pick up point position located between second ribs on a right side of the sternum, the 2 nd silver chloride piece is used for detecting an electrocardiosignal picked up from a 2 nd signal pick up point position located between fourth ribs on a right side of the sternum, the 3 rd silver chloride piece is used for detecting an electrocardiosignal picked up from a 3 rd signal pick up point position located between second ribs on a left side of the sternum, and the 4 th silver chloride piece is a common electrode for grounding and is used for connecting with a 4 th signal pick up point position located between second ribs of the sternum.

According to the three-lead structure and the connecting method, left and right atrial electrical activities can be selectively amplified aiming at three non-isoelectric parts of the chest body surface, so that P waves can be displayed more clearly and obviously.

Preferably, at least one of the following leads a, B and C, which may be composed of two of the 1 st silver chloride sheet, the 2 nd silver chloride sheet and the 3 rd silver chloride sheet, respectively, is used for recording the P-wave characteristic voltage of the atrium at the time of detection: the chest "-" connection between the 1 st signal pick-up point position between the second rib on the right side of the sternum and the 3 rd signal pick-up point position between the second rib on the left side of the sternum, which are formed by the 1 st silver chloride sheet and the 3 rd silver chloride sheet, forms a lead B for recording the P-wave characteristic voltage of the left atrium, the chest "/" connection between the 1 st signal pick-up point position between the second rib on the right side of the sternum and the 2 nd signal pick-up point position between the fourth rib on the right side of the sternum, which are formed by the 1 st silver chloride sheet and the 2 nd silver chloride sheet, forms a lead A for recording the P-wave characteristic voltage of the right atrium, and the chest "/" connection between the 2 nd signal pick-up point position between the fourth rib on the right side of the sternum and the 3 rd signal pick-up point position between the second rib on the left side of the sternum, which is formed by the 2 nd silver chloride sheet and the 3 rd silver sheet, forms a lead C for recording the mixed P-wave characteristic voltage of the left atrium and the right atrium.

Preferably, the electrocardiograph lead device may be configured to further include: the device comprises a memory, an amplifier, a processor, a battery, a USB communication port and a PCB board, wherein the memory, the amplifier, the processor, the battery, the USB communication port and the PCB board are arranged in an intermediate packaging part formed on a shell, the amplifier is used for amplifying electrocardiosignals picked up by 1 st to 4 th silver chloride electrode plates, the memory is used for receiving electrocardiograph data processed by the processor and storing the electrocardiosignals, and the battery is used for supplying power to a recorder.

Preferably, the 1 st to 4 th silver chloride electrode pads may be depolarized disk-shaped silver chloride electrode pads.

Preferably, the USB communication port may be 4 ports formed on the housing formed of 4 silver chloride sheets.

Preferably, the linear distance between the center positions of the 1 st and 2 nd silver chloride sheets can be 6.6+/-0.5 cm; the straight line distance between the center positions of the 1 st silver chloride piece and the 3 rd silver chloride piece can be 3.3+/-0.5 cm; the linear distance between the center positions of the 2 nd and 3 rd silver chloride plates can be 7.4+/-0.5 cm.

Preferably, the 1 st to 4 th silver chloride electrode plates, the memory, the amplifier, the processor, the battery and the PCB board can be integrally packaged in the middle packaging part of the shell by silica gel.

Preferably, the housing may be L-shaped.

According to another aspect of the present invention, there is provided an electrocardiographic monitoring and diagnosis system, comprising: the recorder; and an external device for data communication with the USB communication port through a conductor or wire connection.

According to another aspect of the present invention, there is provided a three-lead connection method of a recorder according to the above, comprising the steps of: the 1 st to 4 th silver chloride pieces of the recorder are respectively connected with four detection electrodes to form 1 st to 3 rd leads A to C; or the 1 st to 4 th silver chloride sheets of the recorder are respectively connected with four electrodes arranged on the far side surfaces of the double-sided adhesive electrode sheets to form 1 st to 3 rd leads A to C, wherein the shell is L-shaped and is used for being connected with the double-sided adhesive electrode sheets formed in the L shape.

Therefore, according to the patch type electrocardiograph provided by the invention, the electrocardiograph electrode is placed at three non-isoelectric parts of the chest body surface, and the bipolar lead is adopted, so that the patterns of electrocardiograph changes of 3 channels can be recorded by only arranging four electrode plates R1, R2, L1 and Zo, and the electrocardiograph can be used for continuously recording and monitoring electrocardiographs of human bodies for a long time.

Therefore, the recorder provided by the invention has good portability, can perform continuous electrocardiograph or electroencephalogram detection on a human body for a long time, and can rapidly, simply and accurately acquire and simply judge electrocardiograph signals of injured patients in good time on occasions with limited medical conditions such as the wild, the war time, the household and the like.

Drawings

Fig. 1 schematically illustrates a bottom view of a dynamic electrocardiograph according to an embodiment of the present invention, wherein four electrocardiographic electrodes and USB communication ports are shown.

Fig. 2 schematically shows a side view of the recorder.

Fig. 3 shows schematically a top view of the recorder and a partial sectional view thereof in relation to the signal processing module and a sectional view along the V-V section of fig. 2.

Fig. 4 schematically shows four electrocardiograph electrode placement positions of the dynamic electrocardiograph.

Fig. 5 schematically shows the lead connection relationship of the dynamic electrocardiograph.

Fig. 6 schematically shows a circuit configuration of the electrocardiograph.

Fig. 7 schematically shows a layout of electrode pads adapted to the recorder.

Detailed Description

Exemplary embodiments of the present invention are described in detail below with reference to the attached drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present invention to enable one skilled in the art to make and use the present invention in a number of different environments and for a number of different applications. The scope of the invention is therefore defined by the appended claims, and the exemplary embodiments are not intended, and should not be considered, as limiting the scope of the invention. And the shapes and dimensions of the various elements in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure.

< three-lead Structure and connection method >

In fig. 1 to 3, 5, 6, a three-lead patch type L-shaped long-time dynamic electrocardiograph 20 according to the present invention is schematically shown, hereinafter referred to as a recorder 20.

The recorder 20 includes a housing 1 formed in a substantially L-shape in appearance and an electrocardiograph lead device 2 disposed in the housing 1.

As shown in bottom, side and top views of fig. 1 to 3, the electrocardiograph lead device 2 includes four silver chloride pieces R1, R2, L1, zo that are integrated in the housing 1 and exposed from the proximal bottom surface of the housing 1, and detects electrocardiographic signals picked up by the chest electrode.

That is, the four R1, R2, L1, zo silver chloride sheets are used to directly couple with one side of a hydrogel type conductive gel of the disposable electrode sheet 30 shown in fig. 7, for example, and the other side of the disposable electrode sheet 30 is directly coupled with a living body such as a human body to pick up an electrocardiographic signal of the human body.

The four R1, R2, L1, zo silver chloride sheets are also arranged in an L-shape apart from each other as a whole, and in use will be mounted corresponding to the electrodes R1, R2, L1, zo of the disposable electrode sheet 30 at the following mounting positions in front of the chest, namely, the signal pickup point positions 51, 52, 53, 54, and form A, B, C three leads, wherein:

a lead: r1+, right sternum fourth intercostal; r2-, right sternum second intercostal;

b leads: l1+, left sternum second intercostal; r1-, right sternum second intercostal;

c lead: r2+, right sternum fourth intercostal; l1-, left sternum second intercostal.

Referring to the mounting positions shown in fig. 4, signal pickup point position 51 corresponds to the second intercostal right sternum edge, signal pickup point position 52 corresponds to the fourth intercostal right sternum edge, signal pickup point position 53 corresponds to the second intercostal left sternum edge, and signal pickup point position 54 corresponds to the second intercostal sternum edge.

As shown in fig. 5, it is preferable that the straight line distance between the center positions of the R1, R2, L1 silver chloride sheets constituting each lead is set to the following value but not limited thereto:

a lead: r1+ -R2-distance: 6.6+ -0.5 cm;

b leads: l1+ -R1-distance: 3.3+ -0.5 cm;

c lead: r2+ -L1-distance: 7.4.+ -. 0.5cm.

Further, the recorders 20 of different sizes may be designed according to the detection object so that the straight line distances between the center positions of the R1, R2, and L1 silver chloride pieces constituting the respective leads of the respective recorders 20 are respectively different. For example, ±0.5cm as described above may be changed to appropriate values of ±0.1cm, ±0.2cm, ±0.3cm, ±0.4cm or even therebetween.

< component and functional Module >

As shown in fig. 1, 2, and 3, the electrocardiograph lead device 2 is configured to further include: a memory 21, an amplifier 22, a processor 23, a battery 25, a USB communication port 26, a pcb 27, and other components 24, which are built in an intermediate package 29 formed on the housing 1.

More specifically, the amplifier 22 is used to amplify the electrocardiographic signals picked up by the silver chloride electrode pads R1, R2, L1, zo.

Here, a depolarized disk-shaped silver chloride electrode sheet is preferably used to pick up the human electrocardiographic signals. As illustrated in fig. 5, each of the electrocardiographic silver chloride electrode pads R1, R2, L1, zo is connected by flexible thin film printed cables to an amplifier 22 end, such as an ADS1293 electrocardiographic amplifying harvester, on a PCB board 27.

In the circuit module of the collector, three channels CH1, CH2 and CH3 are respectively formed, namely an A lead is respectively formed by R1+ and R2-; a B lead is formed by L1+ and R1-; the C lead is constituted by R2+ and L1-.

Zo is a standard common electrode, or ground.

The memory 21 is used to receive electrocardiographic data processed by the processor 23 (microprocessor) and store electrocardiographic signals. A mass data storage is preferably used.

The processor 23 is used for controlling and coordinating all operations, such as electrocardiosignal amplification analog-to-digital conversion, data storage and data transmission.

Other parts 24 and components 28 refer to other electronic circuit adapting means.

The battery 25 serves as a power supply for the recorder 20.

The v+, V-, d+, D-ports arranged on the housing 1 shown in fig. 1 are preferably 4 ports of a USB consisting of 4 silver chloride sheets for data communication with a USB port connection of a computer via conductors or wires.

Thus, each of the preferably disk-shaped silver chloride electrode pads R1, R2, L1, zo is connected by a wire to an electrocardiograph signal amplifier 22 (preferably, the amplifier 22 may employ an electrocardiograph signal amplification and data acquisition device AD1293, the AD1293 is a chip integrated with electrocardiograph acquisition, amplification, a/D conversion by the company TI in the united states), the electrocardiograph signal of the human body picked up by the silver chloride electrode pads R1, R2, L1, zo is amplified, and the electrocardiograph signal is digitized by a micro control chip of the processor 23 and stored in the memory 21.

The data transfer interface may then be used to communicate to a computer for analysis via the USB communication port 26.

The processed electrocardiosignals are transmitted in a storage mode, so that portability and operability of monitoring can be improved.

< Integrated Package >

The recorder 21 according to the invention preferably employs an integrated package:

preferably, the electrocardiosignal pickup electrodes R1, R2, L1, zo, electrocardiosignal leads are connected, the electrocardiosignal amplifier 22, the data memory 21, the data transmission interface (USB communication port 26), the equipment power supply (battery 25), the power supply charge and other accessories are all encapsulated in an L-shaped device shell 1 by silica gel, for example, the electrocardiosignal pickup electrodes are formed by material pouring and compression molding, the total weight is about 15-20 g, and the traditional electrocardiosignal electrode plates with long connecting wires and snap fasteners for all leads are omitted, so that the normal activity of a human body is not adversely affected. Because the weight is light, no wire exists, the experience of noninductive monitoring can be achieved, the daily life is not influenced, and the device is easy to be accepted by a testee.

Meanwhile, the recording quality of the electrocardiosignals is improved due to the elimination of the power line interference, and the pickup recording and storage of the electrocardiosignals which are continuously monitored and recorded for more than 24-72 hours are satisfied.

< Signal processing procedure >

After one side of the hydrogel type conductive adhesive such as the disposable electrode sheet 30 is attached to four mounting positions, i.e., signal pickup point positions 51, 52, 53, 54 as shown in fig. 4, the R1, R2, L1, zo silver chloride electrode sheets of the recorder 20 according to the present invention are directly coupled to the electrodes R1, R2, L1, zo of the front side surfaces of the electrode sheets, so that 3 leads A, B, C are constituted by the R1, R2, L1, zo silver chloride electrode sheets as shown in fig. 5, 6.

Thus, the electrocardiosignals are picked up by the R1, R2, L1 and Zo silver chloride electrode plates, and the picked-up electrocardiosignals are amplified by the amplifier 22 and transmitted to the processor 23.

The processor 23 samples the electrocardiographic signal at fixed time, AD-converts the sampled electrocardiographic signal, and stores the sampled electrocardiographic signal in the memory 21.

The electrocardiographic data of the memory 21 can be fetched by the processor 23 when needed and transmitted to an external device terminal such as a computer for analysis by the computer through the USB communication port 26.

In this process, the connection of the power cord of the USB communication port 26 is used to simultaneously charge the battery of the recorder 20. The electrocardiographic data of the memory 21 can be cleared by the processor 23 at appropriate times.

As shown in fig. 5 and 6, the recorder 21 according to the present invention adopts a bipolar lead connection method, and by adopting a three-lead bipolar chest lead consisting of four signal pickup points, the extraction, storage and processing of the electrocardiogram signals of the respective characteristics of the left and right atrial voltages can be accomplished with high quality, and can be used for connection with an external electrocardiogram diagnostic reporting system.

Example 1 ]

The proximal side of the L-shaped electrocardio electrode pad 30 provided with, for example, four conductive hydrogel electrodes R1, R2, L1, zo is applied to the skin surface corresponding to the signal pick-up point positions 51 to 54, and four signal pick-up points are constituted by the four conductive hydrogel electrodes R1, R2, L1, zo exposed after the transparent film is removed distally, one of the common electrodes Zo, the three signal electrodes R1, R2, L1 being connected to the silver chloride pad R1, R2, L1, zo of the recorder 20 via the conductive hydrogel electrodes R1, R2, L1, zo, respectively, for detecting three electrocardio signals for monitoring the electrical heart activity.

Here, the proximal side corresponds to the side contacting the skin surface, and the distal side corresponds to the side facing away from the skin surface when applied.

The three leads consisting of the A lead, the B lead and the C lead are formed, wherein the A lead mainly reflects the right atrium voltage of the heart, the B lead mainly reflects the left atrium voltage of the heart, the C lead mainly comprehensively reflects the left atrium voltage and the right atrium voltage of the heart, and the three-lead bipolar chest lead is formed corresponding to the four signal pick-up point positions 51-54 in the mode of connecting the electrocardiosignals and is used for recording the electrocardiograms of the left atrium and the right atrium.

Thus, when the electrocardio electrode plate 30 is attached to the skin surface of the detection object, the silver chloride electrode plates R1, R2, L1 and Zo can collect electrocardiosignals and transmit the electrocardiosignals to the signal processing module connected with the electrocardiosignals so as to further process the electrocardiosignals, thereby completing the collection and processing of the electrocardiosignals.

The connection mode can finish signal extraction of left and right atrial voltages with high quality, and can also meet the requirement of voltage signal extraction of left and right ventricles of a detection object, such as a patient.

More specifically, as shown in fig. 5,

the chest "-" connection between the signal pick-up point location 51 on the right edge of the sternum (manubrium) and the signal pick-up point location 53 on the left edge of the sternum constitutes lead B, which can be used to record the P-wave characteristic voltage of the left atrium.

(II) chest-shaped connection between the signal pickup point location 52 on the fourth intercostal on the right sternum edge and the signal pickup point location 51 on the second intercostal on the right sternum edge constitutes lead A, which can be used to record the P-wave characteristic voltage of the right atrium.

(III) chest "/" shaped connections between the signal pickup point locations 52 and 53 between the fourth and the left and the second sternum edges constitute leads C which can be used to record the mixed P-wave characteristic voltages of the left and right atria.

Thus, an LS lead system for recording the P-wave characteristic voltages of the left and right atria is formed by leads A, B, C.

< technical Effect >

As described above, according to the recorder of the present invention, it is possible to realize:

1. chest A, B, C leads, effectively recording P-waves reflecting left and right atrial features;

2. realizing long-time electrocardiographic recording so as to effectively capture a transient electrocardiographic abnormal signal;

3. the relatively arranged electrocardio electrodes simplify the electrical scheme, reduce the operation difficulty of placement, improve the comfort level of users and reduce the recording noise.

The three-lead electrocardiographic patch provided by the embodiment of the invention is suitable for long-time forced observation of a patient, and can meet the requirements of clinical ordinary monitoring or scientific research by using three electrocardiographic leads to monitor or record heart rhythms.

Moreover, the L-shaped electrocardio-electrode plate 30 matched with the recorder of the invention reduces the contact area between the electrocardio-electrode plate and the skin to the greatest extent, and can avoid or reduce the contact area between the electrocardio-electrode plate and the breast in the occasion of females, thereby saving the base material required by the processing of the electrocardio-electrode plate.

Compared with the three-lead electrocardio-electrode plates of C, N, T, U, X, Z, I-shaped and the like in the prior art, the three-lead electrocardio-electrode plate matched with the embodiment of the invention can effectively record and distinguish the form and rhythm of P waves.

< method for acquiring three-lead electrocardiosignals >

By adopting the three-lead patch type L-shaped long-time dynamic electrocardiograph recorder, the invention can advantageously provide a three-lead electrocardiograph signal acquisition method, which can conveniently finish three-lead electrocardiograph signal acquisition by self-service operation of a general user, and can finish signal extraction of left and right atrial voltages with high quality by the lead connection mode.

As a specific implementation method, the method may include the following steps:

s1: adhering one side of the double-sided adhesive disposable electrode sheet 30 to the mounting position so that the electrodes r1, r2, l1, zo of the electrode sheet 30 correspond to the signal pickup point positions 51, 52, 53, 54, respectively;

s2: silver chloride sheets R1, R2, L1, zo of the recorder 20 are connected to the electrode sheet 30 in such a manner as to correspond to the electrodes R1, R2, L1, zo of the electrode sheet 30, respectively;

s3: starting detection;

s4: ending detection at a proper time according to a preset time period;

s5: data is transmitted from the recorder 20 to an external device such as a computer through the USB communication port 26.

Alternatively or in addition, as a specific implementation method, the method may include the following steps:

s1': the distal surface of the double-sided adhesive electrode sheet 30 is connected to the recorder 20 in such a manner that the four electrodes R1, R2, L1, zo of the electrode sheet 30 correspond to the 1 st to 4 th silver chloride sheets R1, R2, L1, zo of the recorder 20, respectively;

s2': attaching the proximal surfaces of the electrode pads 30 to the mounting positions corresponding to the 1 st to 4 th signal pickup point positions 51, 52, 53, 54, respectively;

s3': starting detection;

s4': and ending the detection according to the preset time period.

The double-sided tape of the electrode sheet 30 used in steps S2, S1', etc. is preferably of hollow design so that one side (distal side) of the sheet-shaped hydrogel-type conductive paste can be directly coupled with the silver chloride sheet of the recorder and the other side (proximal side) can be directly coupled with the human body, whereby the connection of the tangible leads can be advantageously canceled.

The conductive hydrogel adopts the disposable electrocardio electrode flaky hydrogel type conductive colloid with excellent performance at present, so that the operability and the monitoring result are superior to those of the disposable electrocardio electrode flaky conductive colloid which needs Ultraviolet (UV) curing.

The term "contact" may refer herein to direct contact of an electrode with bare skin, or indirect contact of an electrode with bare skin with a conductive material (e.g., a conductive patch or conductive garment).

Unless specifically stated to the contrary, numerical parameters in this specification and the attached claims may be approximations that may vary depending upon the desired properties of dimensions, such as body shapes, etc., of the subject matter passing through the present disclosure or of particular applicability. In general, the meaning of the expression is intended to include a variation of + -0.5-10% from a particular amount in some embodiments, and any numerical range recited herein is intended to include all sub-ranges subsumed therein.

As shown in fig. 2, the bottom surface of the case 1 is substantially horizontal to facilitate connection with the disposable electrode, and a film with four openings may be further coated on the bottom surface of the case 1 to expose the 1 st to 4 th silver chloride sheets R1, R2, L1, zo substantially flush and visually from the openings.

Thus, according to the present invention, there is provided a three-lead patch type L-shaped long-time dynamic electrocardiograph 20, in which 1 st to 3 rd silver chloride patches are used to pick up electrocardiographic detection signals at 1 st to 3 rd signal pick-up point positions during detection. A chest "-" shaped lead B is formed between the 1 st silver chloride sheet R1 and the 3 rd silver chloride sheet L1 for recording the P-wave characteristic voltage of the left atrium. The chest-shaped lead A is formed between the 1 st silver chloride piece R1 and the 2 nd silver chloride piece R2 and is used for recording the P-wave characteristic voltage of the right atrium. And a chest "/" shaped lead C is formed between the 2 nd silver chloride piece R2 and the 3 rd silver chloride piece L1 and is used for recording the mixed P-wave characteristic voltage of the left atrium and the right atrium. The left and right atrial electrical activity is selectively amplified by aiming at three non-isoelectric parts of the body surface, so that the P wave is displayed more clearly and obviously.

Further, the 1 st silver chloride sheet R1 and the 3 rd silver chloride sheet L1 may be disposed substantially symmetrically with respect to the 4 th silver chloride sheet Zo, but are not limited thereto. The outer shape of the case 1 is not limited to the shape other than the L-shape, and the silver chloride sheets R1, R2, L1, zo may be arranged in the L-shape. The intermediate sealing portion 29 is formed at a case distal intermediate position opposed to the 4 th silver chloride sheet Zo, but is not limited thereto, and may be appropriately arranged according to the specific specifications of each member. In the embodiment, the silver chloride electrode sheet is described as an example, but the present invention is not limited thereto. In the embodiment, the double-sided tape type detection electrode sheet 30 formed in an L shape is described as the acquisition electrode attached to the chest, but the present invention is not limited thereto, and the 1 st to 3 rd leads a to C may be formed by connecting the four detection electrodes R1, R2, L1, zo provided separately to the silver chloride sheets R1, R2, L1, zo of the recorder 20, respectively, as the acquisition electrodes.

In addition, as an electrocardiograph monitoring and diagnosis system according to the present embodiment, not only the above-described recorder and an external device for data communication through connection of a conductor or a wire with the USB communication port 26 may be included; the server system can be also considered to adopt a communication module for wireless connection, and the server system can be respectively linked with a user APP terminal and a doctor APP terminal, and can also comprise a database for storing electrocardio data, a self-diagnosis system, a manual diagnosis system, a charging system and the like.

While the invention has been described with reference to various specific embodiments, it should be understood that numerous changes could be made within the spirit and scope of the inventive concepts described. Accordingly, it is intended that the invention not be limited to the described embodiments, but that it have the full scope defined by the language of the following claims.

Claims (9)

1. A three-lead patch type long-time-distance dynamic electrocardiograph recorder (20), which comprises a shell (1) and an electrocardiograph lead device (2) integrally packaged in the shell (1), and is characterized in that,

the electrocardiograph lead device (2) comprises:

1 st to 4 th silver chloride sheets (R1, R2, L1, zo) integrated in the housing (1) and exposed from the proximal bottom surface of the housing (1),

wherein the 1 st silver chloride sheet (R1) is used for detecting electrocardiosignals picked up from a 1 st signal pick-up point position (51) positioned between the second ribs of the right edge of the sternum,

the 2 nd silver chloride sheet (R2) is used for detecting electrocardiosignals picked up from a 2 nd signal pick-up point position (52) positioned between fourth ribs of the right edge of the sternum,

the 3 rd silver chloride sheet (L1) is used for detecting electrocardiosignals picked up from the 3 rd signal pick-up point position (53) positioned between the second rib at the left edge of the sternum,

the 4 th silver chloride sheet (Zo) is a common electrode for grounding for connection to a 4 th signal pick-up point location (54) located between the second ribs of the sternum,

at least one of the following leads a, B and C, each consisting of two of the 1 st silver chloride sheet (R1), the 2 nd silver chloride sheet (R2) and the 3 rd silver chloride sheet (L1), for recording the P-wave characteristic voltage of the atrium upon detection:

the 1 st silver chloride sheet (R1) and the 3 rd silver chloride sheet (L1) are connected in a chest-shaped manner between a 1 st signal pick-up point position (51) between the second ribs on the right side of the sternum and a 3 rd signal pick-up point position (53) between the second ribs on the left side of the sternum to form a lead B for recording P-wave characteristic voltage of the left atrium,

the 1 st silver chloride sheet (R1) and the 2 nd silver chloride sheet (R2) are connected in a chest 'I' -shaped manner between a 1 st signal pick-up point position (51) between the second rib on the right side of the sternum and a 2 nd signal pick-up point position (52) between the fourth rib on the right side of the sternum to form a lead A for recording the P-wave characteristic voltage of the right atrium,

and a lead C is formed by the chest "/" shaped connection between the 2 nd silver chloride sheet (R2) and the 3 rd silver chloride sheet (L1) and the 2 nd signal pick-up point position (52) between the fourth rib of the right sternum edge and the 3 rd signal pick-up point position (53) between the second rib of the left sternum edge, and is used for recording the mixed P-wave characteristic voltage of the left atrium and the right atrium.

2. The recorder according to claim 1, wherein,

the electrocardiograph lead device (2) is configured to further include: a memory (21), an amplifier (22), a processor (23), a battery (25), a USB communication port (26) and a PCB (27) which are arranged in an intermediate packaging part (29) formed on the shell (1),

the amplifier (22) is used for amplifying electrocardiosignals picked up by the 1 st to 4 th silver chloride plates (R1, R2, L1, zo),

the memory (21) is used for receiving the electrocardiogram data processed by the processor (23) and storing electrocardiosignals,

the battery (25) serves as a power supply for the recorder (20).

3. The recorder according to claim 1, wherein,

the 1 st to 4 th silver chloride plates (R1, R2, L1, zo) are depolarized disk-shaped silver chloride electrode plates.

4. The recorder according to claim 2, wherein,

the USB communication ports (26) are 4 ports formed on the shell (1) and formed by 4 silver chloride sheets.

5. The recorder according to claim 1, wherein,

the straight line distance between the central positions of the 1 st silver chloride piece and the 2 nd silver chloride piece (R1, R2) is 6.6+/-0.5 cm;

the straight line distance between the central positions of the 1 st silver chloride piece and the 3 rd silver chloride piece (R1, L1) is 3.3+/-0.5 cm;

the linear distance between the center positions of the 2 nd and 3 rd silver chloride plates (R2, L1) is 7.4+/-0.5 cm.

6. The recorder according to claim 2, wherein,

the 1 st to 4 th silver chloride sheets (R1, R2, L1, zo), the memory (21), the amplifier (22), the processor (23), the battery (25) and the PCB (27) are integrally packaged in a middle packaging part (29) of the shell (1) by silica gel.

7. The recorder according to any one of claims 1 to 6, wherein,

the housing (1) is L-shaped.

8. An electrocardiographic monitoring and diagnostic system, comprising:

the recorder according to any one of claims 1 to 7; and

an external device for data communication via a conductor connection to a USB communication port (26).

9. A method of three-lead connection of a recorder, characterized in that the recorder is a recorder according to any one of claims 1 to 6, the method comprising the steps of:

the 1 st to 4 th silver chloride plates (R1, R2, L1, zo) of the recorder (20) are respectively connected with four detection electrodes (R1, R2, L1, zo) to form 1 st to 3 rd leads A to C; or alternatively

The 1 st to 4 th silver chloride sheets (R1, R2, L1, zo) of the recorder (20) are respectively connected to four electrodes (R1, R2, L1, zo) arranged on the far side surfaces of the double-sided adhesive electrode sheets (30) to form 1 st to 3 rd leads A to C, wherein the shell (1) is L-shaped and is used for being connected with the double-sided adhesive electrode sheets (30) formed in the L shape.