12-lead electrocardiosignal acquisition electrode and preparation method thereof

Abstract

The invention provides a 12-lead electrocardiosignal acquisition electrode and a preparation method thereof. The electrode comprises a substrate layer for a wire, a silver paste wire layer, a medical adhesive tape layer and a conductive sponge layer. According to the precordial 12-lead electrocardio patch and the preparation method thereof, the electrode patch is convenient to process, manufacture and use due to the integrated design, the simplicity and convenience of the electrode patch are improved, and the feasibility and reliability of 12 leads for long-term dynamic monitoring are remarkably improved. The stretchable electrode wire structure is provided, the limitation of the stature size on the integrated electrocardiograph patch is solved, different requirements of different people for electrocardiograph detection positions can be met, and audiences of the electrocardiograph patch are increased. The invention provides a method for connecting the front electrode and the back collector through the through hole design, and signals collected by the front electrode can be effectively transmitted to the back collector with the help of the front conductive silver paste, the back conductive silver paste and the conductive sponge.

Description

Technical Field

[0001] The present invention relates to the technical field of biomedical sensors and flexible electronic materials, and in particular to a 12-lead electrocardiogram signal acquisition electrode and a preparation method thereof. Background Art

[0002] Cardiovascular disease is one of the leading causes of death worldwide. The incidence of cardiovascular disease is increasing year by year, especially in the context of aging and lifestyle changes. Many cardiovascular diseases (such as arrhythmias and myocardial ischemia) may not have obvious symptoms in the early stages, and timely detection of these abnormal electrical activities is of great significance for prevention and intervention. Traditional electrocardiogram (ECG) equipment usually needs to be completed in a hospital, so a monitoring device that can be used in daily life is needed to achieve early warning. With the development of wearable technology, electronic devices that are lightweight, comfortable and can be worn for a long time have become a reality. Making ECG monitoring equipment wearable allows users to continuously monitor ECG signals in daily life, increasing the length of detection time and the continuity of data, and increasing the possibility of capturing abnormal events. Compared with traditional Holter (dynamic electrocardiogram) monitoring, the comfort and convenience of wearable devices make them more suitable for daily monitoring.

[0003] In the related technologies, such as the Chinese invention patent with application number CN202210315566.8 and invention name "A method for preparing a 12-lead dynamic ECG signal acquisition patch", the base material used is an FPC circuit board. When the FPC circuit board is used for direct contact with the human body, the hardness is relatively high, and it is uncomfortable for the human body to wear for a long time; the electrodes for the limbs need to be separately soldered on the FPC circuit board, and the preparation process is cumbersome.

[0004] Therefore, it is necessary to provide a new method to solve the above technical problems. Summary of the invention

[0005] In order to achieve the above-mentioned purpose and other advantages of the present invention, the first purpose of the present invention is to provide a 12-lead ECG signal acquisition electrode, comprising a base layer for a wire, a silver paste wire layer, a medical tape layer and a conductive sponge layer; wherein,

[0006] The conductor base layer is used for printing conductive silver paste, printing electrode conductors, and connecting upper conductors and lower collectors;

[0007] The silver paste conductor layer is used to form the main circuit of the electrode, apply conductive paste to contact the skin, and form a conductive path to carry the collector;

[0008] The medical tape layer is used to cover the substrate with the wires, adhere the electrodes, and adhere the back of the substrate to the collector host;

[0009] The conductive sponge layer is used to connect the host and the electrode.

[0010] Furthermore, the wire base layer is provided with four protruding parts for printing electrode wires LA, RA, LL, and RL, the lateral extension part of the wire base layer is used for printing V1-V6 electrode wires, and the middle through-hole part of the wire base layer is used to connect the upper wire and the lower collector.

[0011] Furthermore, the front silver paste wire coated on the wire base layer is formed into the main circuit of the electrode through screen printing. The solid circle part of the silver paste wire layer is used to apply conductive paste and contact the skin to form 10 electrodes. The hollow circle part is designed to cover the wire on the upper layer of the through hole, which is used to connect the wire on the lower layer of the through hole, thereby realizing the connection of the collector.

[0012] Furthermore, the back silver paste wire coated on the base layer for the wire is composed of 10 hollow circles, which are used to connect the front hollow circle wires to form a conductive through hole.

[0013] Furthermore, the medical tape layer includes a medical tape layer on the skin side and an outer medical tape layer. The medical tape layer on the skin side has 10 holes for applying conductive paste in the holes. The medical tape layer is double-sided adhesive. One side of the adhesive is used to stick to the base with the wires, and the other side of the adhesive is used to stick to the 10 electrodes. The medical tape on the wire part of the electrodes LA, RA, LL, and RL is a single-sided double-sided adhesive, which is only used to stick to the base with the wires, and the other side is in non-adhesive contact with the skin.

[0014] The outer medical tape layer is in the form of a single-sided adhesive and is used to adhere to the back of the substrate, and the middle opening is used to adhere to the collector host.

[0015] Furthermore, the wires connecting the LA, RA, LL, and RL electrodes are designed in two forms, one is a straight wire and the other is a stretchable serpentine wire.

[0016] Furthermore, the wire substrate layer, the silver paste wire layer, and the medical tape layer are an integrated structure and are jointly designed as a stretchable serpentine structure.

[0017] Furthermore, the conductive sponge layer is attached to the corresponding electrode pin position of the double-sided adhesive layer of the host.

[0018] The second object of the present invention is to provide a method for preparing a 12-lead ECG signal acquisition electrode, which is used to prepare the above-mentioned 12-lead ECG signal acquisition electrode, comprising the following steps:

[0019] Conductive silver paste is printed on a waterproof paper substrate, electrode wires LA, RA, LL, and RL are printed on four protruding parts of the wire substrate layer, V1-V6 electrode wires are printed on the lateral extension part, and the upper wire and the lower collector are connected through the middle part with a through hole;

[0020] The front silver paste wire coated on the wire substrate layer is formed into the main circuit of the electrode by screen printing, the solid circle part is coated with conductive paste and contacts the skin to form 10 electrodes, and the hollow circle part is designed as a wire covering the upper layer of the through hole, which is used to connect the lower layer wire of the through hole, thereby realizing the connection with the collector;

[0021] The medical tape layer on the skin side has 10 holes for applying conductive paste in the holes. The medical tape is double-sided, with one side used to stick to the base with wires, and the other side used to stick to the 10 electrodes. The wire part of the electrodes LA, RA, LL, and RL has a single-sided double-sided tape, which is only used to stick to the base with wires, and the other side is in non-adhesive contact with the skin.

[0022] The outer medical tape layer is in the form of single-sided adhesive, which is used to stick to the back of the base, and the middle opening is used to stick to the collector host:

[0023] The host and the electrodes are connected through a conductive sponge layer.

[0024] Furthermore, the back silver paste wire coated on the base layer for the wire is composed of 10 hollow circles, which are used to connect the front hollow circle wires to form a conductive through hole.

[0025] Furthermore, the conductive sponge layer is attached to the corresponding electrode pin position of the double-sided adhesive layer of the host.

[0026] Furthermore, a stretchable structure is designed for the wires where the four electrodes LA, RA, LL, and RL are located, and a stretchable structure is designed for the wire base layer, the silver paste wire layer, and the medical tape layer where the four electrodes LA, RA, LL, and RL are located.

[0027] Furthermore, the serpentine portion of the substrate layer for the conductor is wider than the silver paste conductor, and the serpentine silver paste conductor is printed on the substrate.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides a 12-lead electrocardiogram patch for chest use and a preparation method thereof. The integrated design facilitates the processing, manufacturing and use of the electrode patch, improves the simplicity of the electrode patch, and significantly improves the feasibility and reliability of the 12-lead electrocardiogram patch for long-term dynamic monitoring.

[0030] The present invention proposes a stretchable electrode wire structure, which solves the limitation of body size on the integrated ECG patch, can meet the different needs of different people for ECG detection positions, and increases the audience group of the ECG patch.

[0031] The present invention proposes a method for connecting the front electrode and the back collector by through-hole design. With the help of front and back conductive silver pastes and conductive sponges, the signal collected by the front electrode can be effectively transmitted to the back collector.

[0032] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0034] Figure 1 It is a schematic diagram of the base layer for the conductor;

[0035] Figure 2 This is a schematic diagram of the silver paste conductor layer;

[0036] Figure 3 It is a schematic diagram of the wire shape on the substrate;

[0037] Figure 4 It is a schematic diagram of the medical tape layer;

[0038] Figure 5 Schematic diagram of the conductive sponge layer;

[0039] Figure 6 It is a schematic diagram of the overall form of the electrode sticker;

[0040] Figure 7 Schematic diagram of the overall form of the stretchable electrode patch.

[0041] In the figure: 1. Base layer for wires; 11. Protruding part; 12. Lateral extension part; 13. Middle through-hole part; 2. Silver paste wire layer; 21. Front silver paste wire; 22. Solid circle part; 23. Hollow circle part; 3. Medical tape layer; 31. Medical tape layer on the skin side; 32. Outer medical tape layer; 4. Conductive sponge layer; 5. Double-sided tape layer for the host. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like components.

[0044] In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined relative to the structure shown in the drawings. In particular, "height" is equivalent to the dimension from top to bottom, "width" is equivalent to the dimension from left to right, and "depth" is equivalent to the dimension from front to back. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directions should not be interpreted as restrictive terms.

[0045] Terms related to attachment, coupling, and the like (eg, "connected" and "attached") refer to either a fixed or attached relationship between structures, either directly or indirectly, and either movable or rigid attachments or relationships, unless expressly stated otherwise, of the structures to one another through intermediate structures.

[0046] With the development of wearable 12-lead technology, with the support of algorithms, the 4 leads of the limbs can be completely replaced by the 4 leads of the chest, thus forming 12 leads of the chest, and can effectively monitor ECG signals. The present invention designs a 12-lead electrode patch for the chest for long-term monitoring of 12-lead ECG signals, which can be used for early screening and risk prediction of cardiovascular diseases.

[0047] Example 1

[0048] A 12-lead ECG signal acquisition electrode, such as Figure 1-Figure 7 As shown, it includes a base layer 1 for wire, a silver paste wire layer 2, a medical tape layer 3 and a conductive sponge layer 4; wherein,

[0049] The conductor base layer is used for printing conductive silver paste, printing electrode conductors, and connecting upper conductors and lower collectors;

[0050] The silver paste conductor layer is used to form the main circuit of the electrode, apply conductive paste to contact the skin, and form a conductive path to carry the collector;

[0051] The medical tape layer is used to cover the substrate with the wires, adhere the electrodes, and adhere the back of the substrate to the collector host;

[0052] The conductive sponge layer is used to connect the host and the electrode.

[0053] Conductive silver paste is printed on a waterproof paper substrate. The paper substrate has low cost and is suitable for disposable medical devices such as ECG electrodes. The substrate layer is mainly used for printing conductive silver paste. Figure 1 As shown, the conductor substrate 1 is provided with four protruding parts 11 for printing the electrode conductors of LA, RA, LL, and RL, the lateral extension part 12 of the conductor substrate is used for printing the electrode conductors of V1-V6, and the middle through-hole part 13 of the conductor substrate is used for connecting the upper conductor and the lower collector. The connection between the upper electrode and the lower collector is achieved by printing silver paste above and below the through-hole and covering the conductive sponge.

[0054] Furthermore, if Figure 2 As shown, Figure 2 (a) is a schematic diagram of the front wire. Figure 2 (b) is a schematic diagram of the back side wire. The front silver paste wire 21 coated on the wire base layer is formed into the main circuit of the electrode by screen printing. The solid circle part 22 of the silver paste wire layer is used to apply conductive paste and contact the skin to form 10 electrodes. The hollow circle part 23 is designed as a wire covering the upper layer of the through hole, which is used to connect the lower layer of the through hole, so as to achieve the connection of the collector. The back silver paste wire coated on the wire base layer is composed of 10 hollow circles, which are used to connect the front hollow circle wire to form a conductive through hole. Figure 3 (a) shows the shape of the wire on the front side of the substrate. Figure 3 (b) shows the shape of the wire on the back side of the substrate. When the electrode patch is used, the front side is attached to the skin, and the conductive path formed by the through holes on the back side is used to carry the collector to achieve effective signal collection.

[0055] Furthermore, if Figure 4 As shown, the medical tape layer includes a skin-adhering medical tape layer 31 and an outer medical tape layer 32. The skin-adhering medical tape layer is as shown in FIG. Figure 4 As shown in (a), the outer medical tape layer is as follows Figure 4As shown in (b), the medical tape layer on the skin side has 10 holes for applying conductive paste in the holes. The medical tape layer is double-sided adhesive, one side of which is used to stick to the substrate with wires, and the other side of which is used to stick to 10 electrodes. The medical tape on the wire part of the electrodes LA, RA, LL, and RL is a single-sided double-sided adhesive, which is only used to stick to the substrate with wires, and the other side is in non-adhesive contact with the skin. The outer medical tape layer is in the form of single-sided adhesive, which is used to stick to the back of the substrate, and the middle hole is used to stick to the collector host. Therefore, the wire and the substrate are sandwiched between the two medical tape layers, and the medical tape layers play the role of insulation, waterproofing, fixing, and support.

[0056] In order to meet the application in different scenarios, the wires connecting the LA, RA, LL, and RL electrodes are designed in two forms, one is a straight wire and the other is a stretchable serpentine wire. When used for personalized customization, the straight wire mode can be used. When used for general use by adults, the stretchable serpentine wire can meet the requirements of most people for different sizes. Among them, the wires connecting the four electrodes are integrated with the base layer, silver paste wire layer, and medical tape layer, which are designed as a stretchable serpentine structure.

[0057] Furthermore, if Figure 5 As shown, Figure 5 (a) is a schematic diagram of the conductive sponge layer. Figure 5 (b) is a schematic diagram of a conductive sponge layer attached to a double-sided adhesive layer, wherein the conductive sponge layer 4 is attached to the corresponding electrode pin position of the double-sided adhesive layer 5 for the host. Figure 6 As shown in (a), the overall back side of the electrode sticker is as follows Figure 6 As shown in (b).

[0058] like Figure 7 As shown, a stretchable structure is designed for the wires where the four electrodes LA, RA, LL, and RL are located. Figure 7 (a) shows the overall front view of the stretchable electrode patch. Figure 7(b) is the overall back of the stretchable electrode patch. The stretchable design of this part can better meet the requirements of people of different body sizes for the electrode attachment position. At the same time, the conductive substrate layer, the front wire layer, and the medical tape layer are designed with a stretchable structure for the wires of the four electrodes LA, RA, LL, and RL. A serpentine structure is used as a stretchable design. For the convenience of screen printing, the serpentine part of the conductive substrate is slightly wider than the silver paste wire, and the serpentine silver paste wire is printed on the substrate. For the medical tape layer on the skin side, the whole is in the form of double-sided tape, and the size of the stretchable part is the same as that of the substrate layer. For the medical tape layer on the back of the electrode, a single-sided tape form is used. When in use, first stretch the electrode patch as a whole to a suitable position. At this time, the substrate, wires and medical tape that are stuck together are stretched to a suitable size as a whole, and then tear off LA, RA, the serpentine wires where LA and RA are located, the middle part, the wires where LL and RL are located, and the double-sided adhesive protective film of LL and RL from top to bottom, and stick the electrode patch as a whole to the skin.

[0059] This embodiment provides a 12-lead electrocardiogram patch for chest use. The integrated design facilitates the processing, manufacturing, and use of the electrode patch, improves the simplicity of the electrode patch, and significantly improves the feasibility and reliability of the 12-lead for long-term dynamic monitoring.

[0060] This embodiment proposes a stretchable electrode wire structure, which solves the limitation of body size on the integrated ECG patch, can meet the different needs of different people for ECG detection positions, and expands the audience group of the ECG patch.

[0061] This embodiment proposes a method of connecting the front electrode and the back collector by through-hole design. With the help of front and back conductive silver pastes and conductive sponges, the signal collected by the front electrode can be effectively transmitted to the back collector.

[0062] Example 2

[0063] A method for preparing a 12-lead ECG signal acquisition electrode is used to prepare the above-mentioned 12-lead ECG signal acquisition electrode. For a detailed description of the 12-lead ECG signal acquisition electrode, reference can be made to the corresponding description in the above-mentioned 12-lead ECG signal acquisition electrode embodiment, which will not be repeated here. The preparation method comprises the following steps:

[0064] Conductive silver paste is printed on a waterproof paper substrate. The paper substrate has low cost and is suitable for disposable medical devices such as ECG electrodes. The substrate layer is mainly used for printing conductive silver paste. The electrode wires of LA, RA, LL, and RL are printed on the four protruding parts of the substrate layer for wires, and the electrode wires of V1-V6 are printed on the lateral extension part. The upper wire and the lower collector are connected through the middle part with a through hole; the connection between the upper electrode and the lower collector is achieved by printing silver paste above and below the through hole and covering it with a conductive sponge.

[0065] The front silver paste wire coated on the substrate layer for the wire is formed into the main circuit of the electrode through screen printing. The solid circle part is coated with conductive paste and contacts the skin to form 10 electrodes. The hollow circle part is designed to cover the wire on the upper layer of the through hole, which is used to connect the wire on the lower layer of the through hole, so as to achieve the connection of the collector; the back silver paste wire coated on the substrate layer is composed of 10 hollow circles, which are used to connect the front hollow circle wire to form a conductive through hole. When the electrode patch is used, the front side is attached to the skin, and the conductive path formed by the through hole on the back side is used to carry the collector to achieve effective signal collection.

[0066] The medical tape layer on the skin side has 10 holes for applying conductive paste in the holes. This layer of medical tape is double-sided tape. One side of the tape is used to stick to the base with wires, and the other side is used to stick to 10 electrodes. The wire part of the electrodes LA, RA, LL, and RL is a single-sided double-sided tape, which is only used to stick to the base with wires, and the other side is in non-sticky contact with the skin. The outer medical tape layer is in the form of single-sided tape, which is used to stick to the back of the base, and the hole in the middle is used to stick to the collector host. Therefore, the wires and the base are sandwiched between the two medical tape layers, and the medical tape layers play the role of insulation, waterproofing, fixing, and support.

[0067] The host and the electrode are connected through the conductive sponge layer. Specifically, the conductive sponge layer is attached to the corresponding electrode pin position of the double-sided adhesive layer of the host.

[0068] In order to meet the application in different scenarios, the wires connecting the LA, RA, LL, and RL electrodes are designed in two forms, one is a straight wire and the other is a stretchable serpentine wire. When used for personalized customization, the straight wire mode can be used. When used for general use by adults, the stretchable serpentine wire can meet the requirements of most people for different sizes. Among them, the wires connecting the four electrodes are integrated with the base layer, silver paste wire layer, and medical tape layer, which are designed as a stretchable serpentine structure.

[0069] In some embodiments, the wires where the four electrodes LA, RA, LL, and RL are located are designed with a stretchable structure. The stretchable design of this part can better meet the requirements of people of different body sizes for the electrode attachment position. At the same time, the wires where the four electrodes LA, RA, LL, and RL of the conductive substrate layer, the front wire layer, and the medical tape layer are designed with a stretchable structure. A serpentine structure is used as a stretchable design. For the convenience of screen printing, the serpentine part of the conductive substrate is slightly wider than the silver paste wire, and the serpentine silver paste wire is printed on the substrate. For the medical tape layer on the skin side, the whole is in the form of double-sided tape, and the size of the stretchable part is the same as that of the substrate layer. For the medical tape layer on the back of the electrode, a single-sided tape form is used. When in use, the electrode patch is first stretched to a suitable position as a whole. At this time, the substrate, wire and medical tape that are stuck together are stretched to a suitable size as a whole, and then LA, RA, LA and RA are located The serpentine wire, the middle part, the wire where LL and RL are located, and the double-sided adhesive protective film of LL and RL are torn off from top to bottom, and the electrode patch is attached to the skin as a whole.

[0070] This embodiment provides a method for preparing a 12-lead electrocardiogram patch for chest use. The integrated design facilitates the processing, manufacturing, and use of the electrode patch, improves the simplicity of the electrode patch, and significantly improves the feasibility and reliability of the 12-lead for long-term dynamic monitoring.

[0071] This embodiment proposes a stretchable electrode wire structure, which solves the limitation of body size on the integrated ECG patch, can meet the different needs of different people for ECG detection positions, and expands the audience group of the ECG patch.

[0072] This embodiment proposes a method of connecting the front electrode and the back collector by through-hole design. With the help of front and back conductive silver pastes and conductive sponges, the signal collected by the front electrode can be effectively transmitted to the back collector.

[0073] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0074] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

[0075] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0076] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0077] The above description is only an embodiment of this specification and is not intended to limit one or more embodiments of this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of one or more embodiments of this specification.

Claims

1. A 12-lead ECG signal acquisition electrode, characterized in that: It includes a base layer for wire, a silver paste wire layer, a medical tape layer and a conductive sponge layer; wherein, The conductor base layer is used for printing conductive silver paste, printing electrode conductors, and connecting upper conductors and lower collectors; The silver paste conductor layer is used to form the main circuit of the electrode, apply conductive paste to contact the skin, and form a conductive path to carry the collector; The medical tape layer is used to cover the substrate with the wires, adhere the electrodes, and adhere the back of the substrate to the collector host; The conductive sponge layer is used to connect the host and the electrode.

2. A 12-lead ECG signal acquisition electrode as claimed in claim 1, characterized in that: The conductor base layer is provided with four protruding parts for printing electrode conductors LA, RA, LL, and RL. The lateral extension part of the conductor base layer is used for printing V1-V6 electrode conductors. The middle through-hole part of the conductor base layer is used to connect the upper conductor and the lower collector.

3. A 12-lead ECG signal acquisition electrode as claimed in claim 2, characterized in that: The front silver paste wire coated on the base layer for the wire forms the main circuit of the electrode through screen printing. The solid circle part of the silver paste wire layer is used for applying conductive paste and contacts the skin to form 10 electrodes. The hollow circle part is designed to cover the wire on the upper layer of the through hole and is used to connect the wire on the lower layer of the through hole, thereby realizing the connection of the collector.

4. A 12-lead ECG signal acquisition electrode as claimed in claim 3, characterized in that: The back silver paste wire coated on the base layer for the wire is composed of 10 hollow circles and is used to connect the front hollow circle wires to form a conductive through hole.

5. A 12-lead ECG signal acquisition electrode as claimed in claim 4, characterized in that: The medical tape layer includes a medical tape layer for skin contact and an outer medical tape layer. The medical tape layer for skin contact has 10 holes for applying conductive paste in the holes. The medical tape is double-sided adhesive. One side of the adhesive is used to stick to the substrate with the wires, and the other side of the adhesive is used to stick to the 10 electrodes. The medical tape for the wire part of the electrodes LA, RA, LL, and RL is a single-sided double-sided adhesive, which is only used to stick to the substrate with the wires, and the other side is in non-adhesive contact with the skin. The outer medical tape layer is in the form of a single-sided adhesive and is used to adhere to the back of the substrate, and the middle opening is used to adhere to the collector host.

6. A 12-lead ECG signal acquisition electrode as claimed in claim 2, characterized in that: The wires connecting the LA, RA, LL, and RL electrodes are designed in two forms, one is a straight wire and the other is a stretchable serpentine wire.

7. A 12-lead ECG signal acquisition electrode as claimed in claim 6, characterized in that: The conductor base layer, the silver paste conductor layer, and the medical tape layer are an integrated structure and are jointly designed as a stretchable serpentine structure.

8. The 12-lead ECG signal acquisition electrode according to claim 5, characterized in that: The conductive sponge layer is attached to the corresponding electrode pin position of the double-sided adhesive layer of the host.

9. A method for preparing a 12-lead electrocardiogram signal acquisition electrode, used for preparing a 12-lead electrocardiogram signal acquisition electrode as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Conductive silver paste is printed on a waterproof paper substrate, electrode wires LA, RA, LL, and RL are printed on four protruding parts of the wire substrate layer, V1-V6 electrode wires are printed on the lateral extension part, and the upper wire and the lower collector are connected through the middle part with a through hole; The front silver paste wire coated on the wire substrate layer is formed into the main circuit of the electrode by screen printing, the solid circle part is coated with conductive paste and contacts the skin to form 10 electrodes, and the hollow circle part is designed as a wire covering the upper layer of the through hole, which is used to connect the lower layer wire of the through hole, thereby realizing the connection with the collector; The medical tape layer on the skin side has 10 holes for applying conductive paste in the holes. The medical tape is double-sided, with one side used to stick to the base with wires, and the other side used to stick to the 10 electrodes. The wire part of the electrodes LA, RA, LL, and RL has a single-sided double-sided tape, which is only used to stick to the base with wires, and the other side is in non-adhesive contact with the skin. The outer medical tape layer is in the form of single-sided adhesive, which is used to stick to the back of the base, and the middle opening is used to stick to the collector host: The host and the electrodes are connected through a conductive sponge layer.

10. The method for preparing a 12-lead ECG signal acquisition electrode according to claim 9, characterized in that: The back silver paste wire coated on the base layer for the wire is composed of 10 hollow circles and is used to connect the front hollow circle wires to form a conductive through hole.

11. The method for preparing a 12-lead ECG signal acquisition electrode according to claim 9, characterized in that: The conductive sponge layer is attached to the corresponding electrode pin position of the double-sided adhesive layer of the host.

12. The method for preparing a 12-lead ECG signal acquisition electrode according to claim 9, characterized in that: The conductive wires where the four electrodes LA, RA, LL and RL are located are designed with a stretchable structure, and the conductive wire base layer, the silver paste conductive wire layer and the medical tape layer where the four electrodes LA, RA, LL and RL are located are designed with a stretchable structure.

13. The method for preparing a 12-lead ECG signal acquisition electrode according to claim 12, characterized in that: The serpentine portion of the substrate layer for the conductor is wider than the silver paste conductor, and the serpentine silver paste conductor is printed on the substrate.

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