CN111785414A - Wire for ECG electrode, ECG electrode and ECG monitoring device - Google Patents

Abstract

The invention belongs to the field of electrocardio measuring equipment, and particularly relates to a lead for an electrocardioelectrode plate for sensing body electric signals, the electrocardioelectrode plate and an electrocardio monitoring device, wherein the lead for the electrocardioelectrode plate provided by the scheme has certain bending performance and stretching performance, and can meet the requirement of deformation of the lead during human body movement; furthermore, the arrangement of the nonlinear repeating units in the electrocardioelectrode plate provided by the scheme further provides a space for the stretching of the lead, and finally the electrocardioelectrode plate monitoring device adopting the electrocardioelectrode plate can be in good contact with a human body, so that the human body does not feel uncomfortable due to the electrode plate in the motion process, and the electrode plate is not unsmooth in transmission due to the deformation of the human body.

Description

Wire for ECG electrode, ECG electrode and ECG monitoring device

technical field

The invention belongs to the field of electrocardiogram measurement equipment, in particular to a lead wire for electrocardiogram electrode sheets, an electrocardiogram electrode sheet and an electrocardiogram monitoring device used for inducing body electrical signals.

Background technique

With the development of Chinese society and the improvement of economic level, cardiovascular and cerebrovascular diseases have rapidly become one of the major diseases that threaten the life and health of urban populations. At the beginning of 2018, the National Cardiovascular Disease Center released the "China Cardiovascular Disease Report 2017 (Summary)". It is estimated that the number of cardiovascular disease patients in my country is 290 million, and cardiovascular disease deaths account for more than 40% of residents' disease deaths, ranking first, higher than tumors and other diseases. For cardiovascular and cerebrovascular patients, it is particularly important to detect ECG signals at all times in order to detect abnormalities in time and seek medical treatment in time.

Conventional instant ECG detection equipment includes a host, lead wires and electrode pads, wherein the electrode pads are disposable, and the host and lead wires are reusable.

Typical conventional real-time ECG detection equipment such as CN200720125633.0, the invention patent named "disposable electrode pad type conventional ECG lead wire" disclosed: the disposable electrode pad type conventional ECG lead wire belongs to a kind of For the lead wire for routine ECG monitoring and tracing, the cable (5) is connected to the shielded glued wire (3) through the fixed connection splitter (4), and the end of the shielded glued wire (3) is connected to the connector (1), and the connector (1) works The surface is bonded to the disposable paste electrode (2). The advantages of the present invention lie in that: the clip-type and suction-ball-type metal electrodes in the prior art are changed into disposable stick-type electrode sheets, which can effectively enhance and ensure the stable contact between the electrodes and the skin of the corresponding part, and improve the success of the electrocardiogram examination. At the same time, after the continuous use of the electrode is changed to one-time use, it also meets the requirements of public health, and the invention has a simple and effective structure and is easy to implement. Its structure is shown in Figure 1.

However, ordinary ECG can only record the electrical activity of the heart for a short period of time, and the occurrence of cardiac abnormalities is often paroxysmal, transient, and occasional. That is to say, when a person's heart is abnormal, even if he goes to the hospital for an examination immediately, the static ECG in just ten seconds is often unable to catch the abnormal situation, so it needs to be carried out for 24 consecutive hours. Even 48 hours of monitoring to capture abnormal conditions of the heart.

Therefore, the dynamic electrocardiogram detection equipment came into being, which can detect the ECG signal for 24 or even 48 hours.

Typical Holter monitoring equipment such as CN94213324.2, the invention patent named "Standard 12-Lead Instantaneous Holter" is disclosed: The standard 12-lead Instantaneous Holter consists of a casing and a printer mounted on the casing. , It is composed of a playback machine with an operating keyboard, a display and a playback machine circuit, and an electrocardiogram recording box with a recording box circuit. The playback machine and the recording box are connected through a communication port. The playback machine circuit is a single-chip microcomputer circuit, and the record box circuit is a single-chip microcomputer circuit including acquisition, amplification, analog-to-digital conversion and data storage. The playback machine inputs initialization information to the recording box through the keyboard. The patient carries the recording box with them. After pressing the button, the abnormal 12-lead ECG signal measured by the probe is recorded in the memory, and the signal is displayed or printed by the playback machine. Its circuit structure is shown in Figure 2.

However, this kind of Holter monitor is quite bulky, and it is inconvenient for the patient to carry, and it is completely impossible to exercise or take a bath. Therefore, there is a need for a dynamic electrocardiographic instrument structure with a small volume and convenient portability.

Therefore, another person invented a patch-type dynamic electrocardiogram recorder, the structure of which is much smaller than that of ordinary electrocardiograms, and its portability is better. A typical invention patent, for example, No. 201811082281.4, titled "A Patch Holter Electrocardiogram Recorder" discloses: a patch Holter Electrocardiogram Recorder, including a bottom cover assembly and a host, the bottom cover assembly includes a The disassembled bottom cover body installed on the host, and the first circuit board provided on the bottom cover body, the first circuit board includes a first circuit board body and three electrode seats connected to the first circuit board body, A disposable electrode pad is detachably mounted on each electrode holder. In this way, the bottom cover body is detachably installed on the main body, and the circuit board is separately arranged on the bottom surface of the bottom cover body, the circuit board on the main body is separated from the circuit board on the bottom cover body, and the circuit and the disposable electrode sheet are separated at the same time. Separately, after each patient is detected, it is only necessary to replace the disposable electrode pad installed on the bottom cover body, and this disposable electrode pad only costs a few cents, which is greatly reduced compared to the prior art. Cost of disposable pads. Its structure can refer to Figure 3. In Fig. 3, 102 refers to the patch-type Holter monitor, 1021 refers to the main body, and 1033 refers to the aperture on the main body.

However, this kind of ECG chest stickers are all connected to the host and traditional button electrodes, and the distance between several electrode buttons cannot be changed correspondingly with the movement of the human chest, resulting in the skin being attached to the human body. As a result, the pulling feeling is strong and the comfort is greatly reduced.

Therefore, it is necessary to design an electrode pad structure, which can adapt to the changes in the relative positions of the electrodes on the electrode pads when the human body moves, and improve the comfort of the human body on the basis of confirming the performance of the electrode pads.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a lead wire for an ECG electrode pad, an ECG electrode pad and an ECG monitoring device, which can solve the above problems.

The present invention firstly discloses a lead wire for an ECG electrode sheet, which includes an insulating layer and a redox layer, the redox layer is laid on the insulating layer, and the longitudinal cross-sectional width of the redox layer is not greater than the width of the redox layer. An insulating layer, the longitudinal section thickness of the insulating layer is greater than that of the redox layer, the insulating layer is made of a flexible non-conductor material, and the redox layer has electrical conductivity. The redox layer is isolated and protected by arranging an insulating layer. A further technical solution of the present invention is: the insulating layer is one or a combination of polyimide, polyester and polycarbonate. These materials have good flexibility, while allowing the redox layer to adhere firmly to its surface. The printing of the redox layer belongs to a relatively mature prior art, and will not be repeated here.

A further technical solution of the present invention is that: the redox layer includes an intermediate layer and a reaction layer. The purpose of the intermediate layer is mainly to strengthen the combination of the reaction layer and the insulating layer.

On the basis of having the most basic electrical conductivity, the lead wire for the electrocardiographic electrode sheet obtained by this scheme has certain flexibility and can adapt to the needs of being attached to the surface of the human body. When the user is exercising, during the deformation and bending of the body surface muscles, the wires used for the ECG electrode pads are also bent together, so that the electrical signal transmission will not be affected, and the user will not feel uncomfortable.

The invention also discloses an electrocardiographic electrode sheet, comprising a base material layer, at least one lead wire for electrocardiographic electrode sheet as described above laid on the base material layer, an input electrode, an output electrode, and the The number of input electrodes and output electrodes is the same as the lead wire for the ECG electrode sheet, and each lead wire for the ECG electrode sheet corresponds to an input electrode and an output electrode respectively, wherein the input electrode and the ECG electrode sheet have the same numbers. One end of the wire is connected, and the output electrode is connected to the other end of the wire for the ECG electrode sheet.

The substrate layer is in direct contact with the human body, and the human body's ECG signal is sensed by the input electrode on the substrate layer, and is transmitted to the output electrode above the substrate layer through the aforementioned ECG electrode sheet with wires to realize the human body's ECG signal. induction. As for the positions of the input electrodes and the output electrodes; how the wires of the ECG electrode pads are connected to the input electrodes and the output electrodes to achieve conduction, etc., are not the focus of the protection of this patent, and there are already solutions that can be realized in the prior art. Therefore, it is not repeated in this patent.

A further technical solution of the present invention is that: the base material layer is a flexible material and has elasticity. The substrate layer is in direct contact with the human body, and when the human skin is deformed, the substrate layer undergoes the same deformation.

A further technical solution of the present invention is that the wires for the ECG electrode sheet are non-linearly laid on the base material layer. Through the non-linear setting, it is ensured that when the substrate layer is deformed, the wires are deformed together, but the transmission of electrical signals is not affected.

A further technical solution of the present invention is that: the lead wire for the ECG electrode sheet includes at least one extension portion and at least one bending portion, and the extension portion and the bending portion are connected to each other. Although the lead wire for ECG electrode pads is locally nonlinear, it is still directional on a macroscopic scale. The extension part is the part that extends along a straight line in the lead wire for ECG The part of the wire that turns the corner.

A further technical solution of the present invention is that: the extension part has at least two first nonlinear repeating units, and each of the first nonlinear repeating units is connected end to end.

A further technical solution of the present invention is that: the bent portion has one second nonlinear repeating unit or at least two second nonlinear repeating units connected to each other. The production is made as convenient as possible by the arrangement of repeating units. However, due to the different extension directions of the extension part and the bending part, the force during deformation is different, so the structure of the repeating unit is also different. The repeating unit can be in any shape, such as square wave, "M" shape, wave shape, etc., as long as it can achieve repeated production.

A further technical solution of the present invention is that: there is no stress concentration point on the first nonlinear repeating unit, and no stress concentration point on the second nonlinear repeating unit. Due to the different forces at different positions during deformation, if there is a stress concentration point, it is very likely that fracture or poor contact will occur, resulting in interruption of signal transmission.

所述第一非线性重复单元余弦波形的函数表达式为

所述第二非线性重复单元为正弦波形、余弦波形中的一种，所述第二非线性重复单元正弦波形的函数表达式为

所述第一非线性重复单元余弦波形的函数表达式为

其中A₁为所述第一非线性重复单元的波幅，A₂为所述第二非线性重复单元的波幅，ω₁为所述第一非线性重复单元角频率，ω₂为所述第二非线性重复单元角频率，x为所述第一非线性重复单元或所述第二非线性重复单元的横轴量，

为所述第一非线性重复单元或所述第二非线性重复单元的横相偏移，b为所述第一非线性重复单元或所述第二非线性重复单元的竖相偏移。A further technical solution of the present invention is: one of a sine waveform and a cosine waveform of the first nonlinear repeating unit, and the function expression of the first nonlinear repeating unit sine waveform is:

The functional expression of the cosine waveform of the first nonlinear repeating unit is:

The second nonlinear repeating unit is one of a sine waveform and a cosine waveform, and the function expression of the sine waveform of the second nonlinear repeating unit is:

The functional expression of the cosine waveform of the first nonlinear repeating unit is:

where A ₁ is the amplitude of the first nonlinear repeating unit, A ₂ is the amplitude of the second nonlinear repeating unit, ω ₁ is the angular frequency of the first nonlinear repeating unit, and ω ₂ is the second nonlinear repeating unit the angular frequency of the nonlinear repeating unit, x is the horizontal axis quantity of the first nonlinear repeating unit or the second nonlinear repeating unit,

is the transverse phase shift of the first nonlinear repeating unit or the second nonlinear repeating unit, and b is the vertical phase shift of the first nonlinear repeating unit or the second nonlinear repeating unit.

A further technical solution of the present invention is: the ω ₂ is greater than the ω ₁ , and the A ₂ is greater than the A ₁ . Since the bending part is bent, if it has the same angular frequency and amplitude as the extension part, the stress per unit length of the bending part may be higher than that of the extension part, resulting in uneven stress.

A further technical solution of the present invention is: the A ₂ is less than or equal to the value of 2π/ω ₂ . 2π/ω ₂ is the specific value of the period of the wave function, in other words, the height of the bent portion is not greater than the length of each period. This ensures that the bend is smooth enough to ensure less stress.

A further technical solution of the present invention is: the width of the lead wire for the ECG electrode sheet is not greater _than half of A1. The wider the wire width is, the lower the resistivity is, which is more conducive to signal transmission, but the larger the wire width, the worse the portability of the electrode sheet.

A further technical solution of the present invention is that each of the wires for the ECG electrode pads is placed in parallel, and the distance between the wires for the ECG electrode pads is greater _than half of A1. The distance between the wires for each of the ECG electrode sheets is too close, which may cause the wires to contact each other when the human body moves, but the farther the distance is, the worse the portability is.

The present invention also discloses an ECG monitoring device, comprising a host, an ECG electrode sheet according to claims 4-15, the host and the ECG electrode sheet are detachably connected, and the host is provided with There is at least one sensing electrode, and the sensing electrode is in a one-to-one correspondence with the output electrodes on the ECG electrode sheet and can be detachably connected.

The ECG monitoring device in this solution includes the host and the ECG electrode pads, which greatly reduces the volume of the traditional ECG instrument. At the same time, because the electrode pads have stretching and flexibility properties, they can deform together with the human body, and the human body is moving. During the process, there will be no discomfort due to the electrode pads, and the electrode pads will not be transmitted poorly due to the deformation of the human body.

A further technical solution of the present invention is: the induction electrode has magnetism. By setting the magnetism, the sensing electrode is better positioned and connected with the output electrode.

The beneficial effect of the present invention is that the lead wire for the electrocardiographic electrode sheet provided by the solution has certain bending performance and tensile performance, and can meet the requirements of the deformation of the lead wire when the human body moves. Further, the arrangement of the nonlinear repeating units in the ECG electrode pads provided by this solution provides further space for the stretching of the wires, and finally enables the ECG monitoring device using the ECG electrode pads of this solution to better contact the human body. , the human body will not feel uncomfortable because of the electrode pads during the movement, and the electrode pads will not be transmitted poorly due to the deformation of the human body.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of an electrocardiogram detection device provided by the prior art 1 .

FIG. 2 is a schematic diagram of an ECG detection device provided by the prior art 2 .

FIG. 3 is a schematic diagram of an electrocardiogram detection device provided by the prior art 3 .

FIG. 4 is a schematic diagram of stacking of wires for ECG electrode pads provided in Embodiment 1 of the present invention.

FIG. 5 is a schematic diagram of an ECG electrode sheet substrate provided in Example 1 of the present invention.

6 is a structural diagram of a lead wire for an ECG electrode sheet provided in Embodiment 1 of the present invention.

FIG. 7 is a schematic diagram of the ECG electrode sheet provided in Embodiment 1 of the present invention.

Legend: 1-connector; 2-disposable paste electric; 3-shielded glue line; 4-split; 5-cable; 102-patch Holter; 1021-body; 1033-hole on the host; 123-reaction layer; 124-intermediate layer; 125-insulation layer; 11-substrate layer; 12-lead wire for ECG electrode sheet; 121-extension part; 122-bending part; 13-output electrode; .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the wooden invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Furthermore, the following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. Directional terms mentioned in the present invention, such as "up", "down", "front", "rear", "left", "right", "inside", "outside", "side", etc., only Reference is made to the directions of the accompanying drawings, therefore, the directional terms used are for better and clearer description and understanding of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, in a specific orientation construction and operation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected", "connected" and the like should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a Removably connected, or integrally connected; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Also, in the description of the present invention, unless otherwise specified, "plurality" means two or more. If the term "process" appears in this specification, it not only refers to an independent process, but also includes in this term as long as the intended function of the process can be achieved when it cannot be clearly distinguished from other processes. In addition, the numerical range represented by "-" in this specification means the range which includes the numerical value described before and after "-" as a minimum value and a maximum value, respectively. In the drawings, structures that are similar or identical are denoted by the same reference numerals.

The invention provides an electrode sheet device. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

The present invention firstly discloses a lead wire for an ECG electrode sheet, with reference to FIG. 4 .

The wire for ECG electrode sheet includes an insulating layer 125 and a redox layer, the redox layer is laid on the insulating layer, the longitudinal cross-sectional width of the redox layer is not greater than the insulating layer, and the insulating layer The thickness of the longitudinal section is greater than that of the redox layer, the insulating layer is made of a flexible non-conductor material, and the redox layer has electrical conductivity. The redox layer is isolated and protected by arranging an insulating layer.

It can be seen from FIG. 4 that the redox layer includes an intermediate layer 124 and a reaction layer 123 . In this embodiment, the intermediate layer is an Ag layer, which can make the Ag\AgCl as the reaction layer better adhere to the insulating layer, so as to have a better reaction.

Wherein, the insulating layer is one or a combination of polyimide, polyester and polycarbonate. These materials have good flexibility, while allowing the redox layer to adhere firmly to its surface. The printing of the redox layer belongs to a relatively mature prior art, and will not be repeated here.

In this embodiment, we choose PET as the base material of the insulating layer. PET has good flexibility and mechanical properties, and at the same time, the cost is low.

On the basis of having the most basic electrical conductivity, the lead wire for the electrocardiographic electrode sheet obtained by this scheme has certain flexibility and can adapt to the needs of being attached to the surface of the human body. When the user is exercising, during the deformation and bending of the body surface muscles, the wires used for the ECG electrode pads are also bent together, so that the electrical signal transmission will not be affected, and the user will not feel uncomfortable.

This specific embodiment also discloses an ECG electrode sheet, the structure of which can be referred to FIGS. 5-7 .

The ECG electrode sheet includes a base material layer 11, at least one lead wire 12 for the ECG electrode sheet laid on the base material layer, an input electrode 14, an output electrode 13, and the number of the input electrode and the output electrode. The same as the lead wire for the ECG electrode pad, each lead wire for the ECG electrode pad corresponds to an input electrode and an output electrode, wherein the input electrode is connected to one end of the lead wire for the ECG electrode pad, so The output electrode is connected to the other end of the lead wire for the ECG electrode sheet.

ECG monitoring can be divided into multi-lead and single-lead. The information collected by polyconductive ECG is more abundant, and it can monitor myocardial ischemia, myocardial infarction and so on. Single lead has practical significance for the screening of arrhythmia, a large category of heart diseases, especially for atrial fibrillation.

The electrode sheet in this specific embodiment is a single-conductive electrode sheet, which has three pairs of electrodes independent of each other, and therefore also has three wires. It is foreseeable that the number of wires in the multi-conductor electrode sheet will be more, but the principle is the same as that of the single lead.

The substrate layer is in direct contact with the human body, and the ECG signal of the human body is sensed by the input electrode on the substrate layer, and is transmitted to the output electrode above the substrate layer through the ECG electrode sheet in this patent with wires, so as to realize the human heart. Induction of electrical signals. As for the positions of the input electrodes and the output electrodes; how the wires of the ECG electrode pads are connected to the input electrodes and the output electrodes to achieve conduction, etc., are not the focus of the protection of this patent, and there are already solutions that can be realized in the prior art. Therefore, it is not repeated in this patent.

A further solution of this specific embodiment is: the base material layer is a flexible material and has elasticity. The substrate layer is in direct contact with the human body, and when the human skin is deformed, the substrate layer undergoes the same deformation.

In this embodiment, the choice of the substrate layer is PU, but those skilled in the art know that any material with certain mechanical properties and good biocompatibility, such as PCL, etc., can be used as the substrate layer. raw material.

In this embodiment, the conductive wires for the ECG electrode sheet are non-linearly laid on the base material layer, referring to FIG. 6 . Through the non-linear setting, it is ensured that when the substrate layer is deformed, the wires are deformed together, but the transmission of electrical signals is not affected.

A further solution of this specific embodiment is: the lead wire for the ECG electrode sheet includes at least one extension portion 121 and at least one bending portion 122, and the extension portion and the bending portion are connected to each other. Although the lead wire for ECG electrode pads is locally nonlinear, it is still directional on a macroscopic scale. The extension part is the part that extends along a straight line in the lead wire for ECG The part of the wire that turns the corner.

A further solution of this specific embodiment is: the extension part has at least two first nonlinear repeating units, and each of the first nonlinear repeating units is connected end to end.

A further solution of this specific embodiment is: the bending portion has one second nonlinear repeating unit or at least two second nonlinear repeating units connected to each other. The production is made as convenient as possible by the arrangement of repeating units. However, due to the different extension directions of the extension part and the bending part, the force during deformation is different, so the structure of the repeating unit is also different. The repeating unit can be in any shape, such as square wave, "M" shape, wave shape, etc., as long as it can achieve repeated production.

In this embodiment, the first repeating unit and the second repeating unit are both sine waves, but this patent does not limit the first repeating unit and the second repeating unit must be the same, a feasible way is: the first repeating unit A square wave is used, a sine wave is used for the second repeating unit, and even the first repeating unit can include a variety of different waveforms, such as a combination of a sine wave and a square wave.

A further solution of this specific embodiment is: there is no stress concentration point on the first nonlinear repeating unit, and no stress concentration point on the second nonlinear repeating unit. Due to the different forces at different positions during deformation, if there is a stress concentration point, it is very likely that fracture or poor contact will occur, resulting in interruption of signal transmission.

所述第一非线性重复单元余弦波形的函数表达式为

所述第二非线性重复单元为正弦波形、余弦波形中的一种，所述第二非线性重复单元正弦波形的函数表达式为

所述第一非线性重复单元余弦波形的函数表达式为

其中A₁为所述第一非线性重复单元的波幅，A₂为所述第二非线性重复单元的波幅，ω₁为所述第一非线性重复单元角频率，ω₂为所述第二非线性重复单元角频率，x为所述第一非线性重复单元或所述第二非线性重复单元的横轴量，

为所述第一非线性重复单元或所述第二非线性重复单元的横相偏移，b为所述第一非线性重复单元或所述第二非线性重复单元的竖相偏移。A further solution of this specific embodiment is: one of a sine waveform and a cosine waveform of the first nonlinear repeating unit, and the function expression of the first nonlinear repeating unit sine waveform is:

The functional expression of the cosine waveform of the first nonlinear repeating unit is:

The second nonlinear repeating unit is one of a sine waveform and a cosine waveform, and the function expression of the sine waveform of the second nonlinear repeating unit is:

The functional expression of the cosine waveform of the first nonlinear repeating unit is:

where A ₁ is the amplitude of the first nonlinear repeating unit, A ₂ is the amplitude of the second nonlinear repeating unit, ω ₁ is the angular frequency of the first nonlinear repeating unit, and ω ₂ is the second nonlinear repeating unit the angular frequency of the nonlinear repeating unit, x is the horizontal axis quantity of the first nonlinear repeating unit or the second nonlinear repeating unit,

is the transverse phase shift of the first nonlinear repeating unit or the second nonlinear repeating unit, and b is the vertical phase shift of the first nonlinear repeating unit or the second nonlinear repeating unit.

和b都为0。另需要说明的是，本函数的零点设置在导线的起点。Under normal circumstances, there is no need for a horizontal phase offset or a vertical phase offset, i.e.

and b are both 0. It should be noted that the zero point of this function is set at the starting point of the wire.

A further solution of this specific embodiment is: the ω ₂ is greater than the ω ₁ , and the A ₂ is greater than the A ₁ . Since the bending part is bent, if the angular frequency and amplitude of the extension part are the same, the stress per unit length of the bending part may be higher than that of the extension part, resulting in uneven stress.

A further solution of this specific embodiment is: the A ₂ is less than or equal to the value of 2π/ω ₂ . 2π/ω ₂ is the specific value of the period of the wave function, in other words, the height of the bent portion is not greater than the length of each period. This ensures that the bend is smooth enough to ensure less stress.

A further solution of this specific embodiment is: the width of the lead wire for the ECG electrode sheet is not greater than half of A ₁ . The wider the wire width is, the lower the resistivity is, which is more conducive to signal transmission, but the larger the wire width, the worse the portability of the electrode sheet.

In this embodiment, each lead wire for the ECG electrode sheet is placed in parallel, and the distance between the lead wires for the ECG electrode sheet is greater _than half of A1. Refer to Figure 7. The distance between the wires for each of the ECG electrode sheets is too close, which may cause the wires to contact each other when the human body moves, but the farther the distance is, the worse the portability is.

The present invention also discloses an ECG monitoring device (not shown in the figure), which includes a host, such as the ECG electrode sheet described in this specific embodiment, the host is detachably connected to the ECG electrode sheet , the host is provided with at least one sensing electrode, and the sensing electrode is in a one-to-one correspondence with the output electrodes on the ECG electrode sheet and can be connected separately.

The ECG monitoring device in this solution includes the host and the ECG electrode pads, which greatly reduces the volume of the traditional ECG instrument. At the same time, because the electrode pads have stretching and flexibility properties, they can deform together with the human body, and the human body is moving. During the process, there will be no discomfort due to the electrode pads, and the electrode pads will not be transmitted poorly due to the deformation of the human body.

A further solution of this specific embodiment is: the sensing electrode has magnetism. By setting the magnetism, the sensing electrode is better positioned and connected with the output electrode.

The beneficial effect of the present invention is that the lead wire for the electrocardiographic electrode sheet provided by the solution has certain bending performance and tensile performance, and can meet the requirements of the deformation of the lead wire when the human body moves. Further, the arrangement of the nonlinear repeating units in the ECG electrode pads provided by this solution provides further space for the stretching of the wires, and finally enables the ECG monitoring device using the ECG electrode pads of this solution to better contact the human body. , the human body will not feel uncomfortable because of the electrode pads during the movement, and the electrode pads will not be transmitted poorly due to the deformation of the human body.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (17)

1. A lead wire for an ECG electrode sheet, characterized in that: comprising an insulating layer and a redox layer, the redox layer is laid on the insulating layer, and the longitudinal cross-sectional width of the redox layer is not greater than the described redox layer An insulating layer, the longitudinal section thickness of the insulating layer is greater than that of the redox layer, the insulating layer is made of a flexible non-conductor material, and the redox layer has electrical conductivity. 2 . The lead wire for an ECG electrode sheet according to claim 1 , wherein the insulating layer is one or a combination of polyimide, polyester and polycarbonate. 3 . 3 . The lead wire for an ECG electrode sheet according to claim 1 , wherein the redox layer comprises an intermediate layer and a reaction layer. 4 . 4. An ECG electrode sheet, characterized in that it comprises a base material layer, at least one lead wire for ECG electrode sheet according to claims 1-3 laid on the base material layer, an input electrode, an output electrode ; The number of the input electrode and the output electrode is the same as the lead wire for the ECG electrode sheet, and each lead wire for the ECG electrode sheet corresponds to an input electrode and an output electrode respectively, wherein the input electrode and the heart The electric electrode sheet is connected with one end of the wire, and the output electrode is connected with the other end of the wire for the ECG electrode sheet. 5 . The electrocardiographic electrode sheet according to claim 4 , wherein the base material layer is a flexible material and has elasticity. 6 . 6 . The ECG electrode sheet according to claim 5 , wherein the conductive wires for the ECG electrode sheet are non-linearly laid on the base material layer. 7 . 7 . The ECG electrode sheet according to claim 6 , wherein the lead wire for the ECG electrode sheet comprises at least one extension portion and at least one bending portion, and the extension portion and the bending portion are connected to each other. 8 . . 8 . The electrocardiographic electrode sheet according to claim 7 , wherein the extension part has at least two first nonlinear repeating units, and each of the first nonlinear repeating units is connected end to end. 9 . 9 . The electrocardiographic electrode sheet according to claim 8 , wherein the bent portion has one second nonlinear repeating unit or at least two second nonlinear repeating units connected to each other. 10 . 10 . The electrocardiographic electrode sheet according to claim 9 , wherein the first nonlinear repeating unit has no stress concentration point, and the second nonlinear repeating unit has no stress concentration point. 11 . 11. The electrocardiographic electrode sheet according to claim 10, wherein the first nonlinear repeating unit is one of a sine waveform and a cosine waveform, and a functional expression of the first nonlinear repeating unit sine waveform for

The functional expression of the cosine waveform of the first nonlinear repeating unit is:

The second nonlinear repeating unit is one of a sine waveform and a cosine waveform, and the function expression of the sine waveform of the second nonlinear repeating unit is:

The functional expression of the cosine waveform of the first nonlinear repeating unit is:

where A ₁ is the amplitude of the first nonlinear repeating unit, A ₂ is the amplitude of the second nonlinear repeating unit, ω ₁ is the angular frequency of the first nonlinear repeating unit, and ω ₂ is the second nonlinear repeating unit the angular frequency of the nonlinear repeating unit, x is the horizontal axis quantity of the first nonlinear repeating unit or the second nonlinear repeating unit,

is the lateral phase shift of the first nonlinear repeating unit or the second nonlinear repeating unit, and b is the vertical phase shift of the first nonlinear repeating unit or the second nonlinear repeating unit. 12 . The ECG electrode sheet according to claim 11 , wherein the ω ₂ is greater than the ω ₁ , and the A ₂ is greater than the A ₁ . 12 . 13 . The electrocardiographic electrode sheet according to claim 11 , wherein the A ₂ is less than or equal to a value of 2π/ω ₂ . 14 . 14. The electrocardiographic electrode sheet according to claim 11, wherein the width of the lead wire for the electrocardiographic electrode sheet is not greater _than half of A1. 15 . The ECG electrode sheet according to claim 11 , wherein each of the ECG electrode sheet wires is placed in parallel, and the distance between the ECG electrode sheet wires is greater than half of A ₁ . 16 . . 16. An ECG monitoring device, characterized in that it comprises a host, the ECG electrode sheet according to claims 4-15, the host is detachably connected to the ECG electrode sheet, and the host is provided with an ECG electrode. There is at least one sensing electrode, and the sensing electrode is in a one-to-one correspondence with the output electrodes on the ECG electrode sheet and can be detachably connected. 17 . The ECG monitoring device according to claim 16 , wherein the sensing electrodes are magnetic. 18 .

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