Flexible wearable electrocardio sensor and preparation method thereof

Abstract

The invention relates to a flexible wearable electrocardio sensor and a preparation method thereof. The preparation method comprises the following steps: providing a flexible substrate; a circuit printing process is adopted on the first surface of the flexible substrate, electrodes are correspondingly formed at the preset positions of the electrodes, conductive connection points are formed at the preset butt joint positions, and conductive circuits used for connecting the electrodes and the conductive connection points are formed, so that electrocardiosignals collected by the electrodes are transmitted to the conductive connection points through the conductive circuits; wherein the conductive connection points are used for connecting a signal acquisition device. Therefore, the lead circuit and the electrode can be integrated, the flexible wearable electrocardio sensor which is simple in structure and obtained through the preparation method can collect electrocardio signals, and therefore the wearable electrocardio sensor can be light and thin and is beneficial to wearing.

Description

Technical Field

[0001] The present application relates to the field of electrocardiogram sensors, and in particular to a flexible wearable electrocardiogram sensor and a preparation method thereof. Background Art

[0002] With the development of medical technology, medical devices are being used more and more widely, and bioelectric (such as EEG, EMG, ECG, etc.) measurement equipment has been widely used in various basic detection and diagnosis. For example, ECG equipment is used to obtain ECG signals of the test object.

[0003] There are two main types of existing ECG signal collection devices: one is composed of two parts, ECG lead wire and disposable electrode sheet, to achieve traditional ECG signal collection; the other integrates the electrode sheet and ECG lead wire into the inner wall of the top to achieve wearable ECG signal collection. At the same time, the existing wearable ECG sensor that is easy to wear can be fitted with the human body through the retractable structure of the ECG electrode for easy wearing.

[0004] However, during the implementation of the prior art, the applicant discovered that the existing wearable ECG sensors still have the problem of being too thick. Summary of the invention

[0005] Based on this, it is necessary to provide a flexible wearable ECG sensor and a preparation method thereof to address the problem of large thickness of wearable ECG sensors in the prior art.

[0006] In order to achieve the above objectives, in a first aspect, the present application provides a method for preparing a flexible wearable electrocardiogram sensor, the method comprising:

[0007] providing a flexible substrate;

[0008] A circuit printing process is used on the first surface of the flexible substrate to form electrodes corresponding to the preset positions of the electrodes, to form conductive connection points at the preset docking positions, and to form conductive circuits for connecting each electrode and the conductive connection points, so as to transmit the electrocardiogram signals collected by the electrodes to the conductive connection points via the conductive circuits;

[0009] Wherein, the conductive connection point is used to connect the signal acquisition device.

[0010] The preparation method of the above-mentioned flexible wearable ECG sensor is to print electrodes at preset electrode positions and conductive connection points at preset docking positions on the first surface of the flexible substrate, and to print conductive lines connecting each electrode and the conductive connection points, and the conductive connection points can be used to connect the signal acquisition device, so that the lead line and the electrode can be an integrated product, and the above-mentioned preparation method can obtain a flexible wearable ECG sensor with a simple structure, which can realize the collection of ECG signals, so that the wearable ECG sensor can be light and thin, which is convenient for wearing.

[0011] In one embodiment, the method further comprises:

[0012] A detachable component is installed at the preset docking position, and the detachable component is used for detachably connecting the signal acquisition device.

[0013] In one embodiment, the method further comprises:

[0014] An insulating protection layer is formed on the conductive circuit.

[0015] In one embodiment, forming an insulating protective layer on the conductive circuit includes:

[0016] Forming an insulating oil protective layer on the conductive circuit;

[0017] A flexible protective film is formed on the insulating oil protective layer.

[0018] In one embodiment, forming an insulating protective layer on the conductive circuit includes:

[0019] The insulating protective layer does not cover the electrodes.

[0020] In one embodiment, forming a conductive line for connecting each electrode and the conductive connection point includes:

[0021] For each electrode, a conductive circuit is formed between the electrode and a conductive connection point corresponding to the electrode;

[0022] Gaps are formed between any two adjacent conductive lines.

[0023] In one embodiment, the method further comprises:

[0024] A conductive hydrogel is formed on the electrode.

[0025] In one embodiment, the method further comprises:

[0026] A non-woven tape is formed at a preset electrode position on the second surface of the flexible substrate.

[0027] In one embodiment, the method further comprises:

[0028] A character label semi-finished product is formed on the non-woven fabric tape, and the character label semi-finished product is used to mark the position of the electrode.

[0029] In one embodiment, the method further comprises:

[0030] According to the preset shapes corresponding to the preset positions of the electrodes, the preset shapes corresponding to the preset docking positions and the preset shapes corresponding to the conductive circuits, the electrodes, the conductive connecting points and the conductive circuits are die-cut and formed respectively by using a die-cutting process.

[0031] In one embodiment, electrodes are formed corresponding to a plurality of preset electrode positions, conductive connection points are formed at preset docking positions, and conductive lines are formed for connecting each electrode and the conductive connection point, including:

[0032] The circuit printing process is adopted to print silver and / or silver chloride at each preset position of the electrode to form the electrode.

[0033] In a second aspect, the present application also provides a flexible wearable electrocardiogram sensor, comprising:

[0034] Flexible substrate;

[0035] A plurality of electrodes, wherein the plurality of electrodes are arranged in a one-to-one correspondence at preset electrode positions on the first surface of the flexible substrate;

[0036] A conductive connection point is disposed at a preset docking position on the first surface of the flexible substrate, and the conductive connection point is used to connect a signal acquisition device;

[0037] The conductive circuits are respectively connected to the electrodes and the conductive connection points, so as to transmit the electrocardiogram signals collected by the electrodes to the signal collection device via the conductive connection points.

[0038] The above-mentioned flexible wearable ECG sensor has multiple electrodes arranged one by one at preset electrode positions on the first surface of the flexible substrate, conductive connection points arranged at preset docking positions of the flexible substrate, and conductive lines connecting each electrode and the conductive connection points. Through the above-mentioned structure, the ECG signals collected by the electrodes can be transmitted to the signal acquisition device via the conductive connection points to realize the ECG signal collection function. In this way, the ECG signals can be collected through the simple and thin flexible wearable ECG sensor, which can effectively reduce the thickness of the wearable ECG sensor and facilitate wearing.

[0039] In one embodiment, it also includes:

[0040] A detachable component is arranged at the preset docking position.

[0041] In one embodiment, it also includes:

[0042] The insulating protective layer is arranged on the conductive circuit.

[0043] In one embodiment, the insulating protective layer comprises:

[0044] An insulating oil protective layer is provided on the conductive circuit;

[0045] The flexible protective film is arranged on the insulating oil protective layer.

[0046] In one embodiment,

[0047] The flexible substrate is located in the first layer at the location of the conductive circuit;

[0048] The conductive circuit is located in the second layer of the conductive circuit position;

[0049] At least part of the insulating oil protective layer is located in the third layer at the location of the conductive line;

[0050] At least part of the flexible protective film is located on the fourth layer at the location of the conductive circuit.

[0051] In one embodiment,

[0052] The thickness of the flexible substrate, conductive traces and insulating protective layer ranges from 8 to 15 microns.

[0053] In one embodiment, it also includes:

[0054] The insulating protective layer is arranged in a form that does not cover the electrode;

[0055] In one embodiment, the number of the conductive lines is multiple;

[0056] For each conductive line, the conductive line is respectively connected to an electrode and a conductive connection point corresponding to the electrode;

[0057] There are gaps between any two adjacent conductive lines.

[0058] In one embodiment, it also includes:

[0059] A conductive hydrogel is disposed on the electrodes.

[0060] In one embodiment, it also includes:

[0061] The non-woven adhesive tape is arranged on a preset position of the electrode on the second surface of the flexible substrate.

[0062] In one embodiment, it also includes:

[0063] The character label semi-finished product is arranged on the non-woven fabric tape, and the character label semi-finished product is used to mark the position of the electrode.

[0064] In a third aspect, the present application also provides a wearable device, comprising the flexible wearable electrocardiogram sensor as described above.

[0065] The wearable device includes a flexible wearable electrocardiogram sensor with a simple structure and light weight, thereby making the wearable device lighter and easier to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0067] Figure 1 1 is a schematic diagram of a process for preparing a flexible wearable electrocardiogram sensor in one embodiment;

[0068] Figure 2 A schematic diagram of the structure of electrodes, conductive connection points and conductive circuits obtained by a circuit printing process on a flexible substrate in one embodiment;

[0069] Figure 3 is a schematic structural diagram of an insulating protective layer formed on a conductive circuit in one embodiment;

[0070] Figure 4 A schematic diagram of the structure of a conductive hydrogel and a release film mold formed in one embodiment;

[0071] Figure 5 A schematic diagram of the structure of a non-woven tape formed in one embodiment;

[0072] Figure 6 A schematic diagram of the structure of a character tag formed in one embodiment;

[0073] Figure 7 A schematic diagram of a structure of a flexible wearable electrocardiogram sensor in one embodiment;

[0074] Figure 8 A schematic diagram of the structure of a flexible wearable electrocardiogram sensor with a housing in one embodiment;

[0075] Fig. 9 A schematic diagram of the structure of the layers corresponding to the positions of the conductive lines in one embodiment;

[0076] Fig.10 It is a schematic diagram of the structure of the layers corresponding to the preset positions of electrodes in one embodiment. DETAILED DESCRIPTION

[0077] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0079] It should be understood that when an element or layer is referred to as being "on," "adjacent to," or "connected to" another element or layer, it may be directly on, adjacent to, connected to, or coupled to the other element or layer, or there may be an intervening element or layer. It should be understood that although the terms first, second, etc. may be used to describe various elements, components, regions, layers, doping types, and / or portions, these elements, components, regions, layers, doping types, and / or portions should not be limited by these terms. These terms are merely used to distinguish one element, component, region, layer, doping type, or portion from another element, component, region, layer, doping type, or portion. Therefore, without departing from the teachings of the present application, the first element, component, region, layer, doping type, or portion discussed below may be represented as a second element, component, region, layer, or portion.

[0080] Spatially relative terms such as "on," "above," "over," "above," "sequentially," and the like, may be used herein to describe the relationship of one element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatially relative terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, an element or feature described as "below" or "beneath" or "under" the other elements would be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both the above and below orientations.

[0081] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, in this specification, the term "and / or" includes any and all combinations of the relevant listed items.

[0082] Embodiments of the invention are described herein with reference to schematic diagrams that are ideal embodiments (and intermediate structures) of the present application, such that variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances are anticipated. Accordingly, embodiments of the invention should not be limited to the specific shapes of the regions shown herein, but rather include deviations in shapes due to, for example, manufacturing techniques. For example, an implanted region shown as a rectangle typically has rounded or curved features and / or an implant concentration gradient at its edges, rather than a binary change from an implanted region to a non-implanted region. Similarly, a buried region formed by implantation may result in some implantation in the region between the buried region and the surface through which the implantation is performed. Therefore, the regions shown in the figures are schematic in nature, their shapes do not represent the actual shape of the region of the device, and do not limit the scope of the invention.

[0083] In an exemplary embodiment, see Figure 1 and Figure 2 The present invention provides a method for preparing a flexible wearable electrocardiogram sensor, comprising the following steps: S102 to S104; wherein:

[0084] S102, providing a flexible substrate.

[0085] Among them, the flexible substrate 210 can be a substrate formed of a flexible material, and can be a flexible material with the advantages of being light, transparent, flexible and stretchable. For example, the flexible substrate 210 can be polyvinyl alcohol (PVA), polyester (PET), polyimide (PI), polyethylene naphthalate (PEN), etc.; as an example, using PET film as the flexible substrate 210 of a flexible wearable ECG sensor, 220 layers of electrodes and 240 layers of conductive circuits can be printed.

[0086] Exemplarily, a flexible material capable of printing electrodes 220, conductive lines 240 and conductive connection points 230 can be provided as a flexible substrate 210 of a wearable ECG sensor to reduce the thickness of the flexible wearable ECG sensor, making the flexible wearable ECG sensor thinner and lighter.

[0087] S104, using a circuit printing process on the first surface of the flexible substrate, forming electrodes corresponding to the preset positions of the multiple electrodes, forming conductive connection points at the preset docking positions, and forming a conductive circuit for connecting each electrode and the conductive connection point, so as to transmit the electrocardiogram signals collected by the electrodes to the conductive connection points via the conductive circuit; wherein the conductive connection points are used to connect the signal collection device.

[0088] Among them, the first surface may be one of the two surfaces of the flexible substrate 210; the first surface may be a preset surface for printing electrodes 220, conductive connection points 230, and conductive circuits 240. As an example, the first surface may be the surface of the flexible substrate 210 close to the skin of the ECG acquisition object, and the ECG acquisition object may be an object that needs to collect ECG signals. The preset position of the electrode 220 may be the position of the electrode 220 pre-set on the flexible substrate 210; the preset position of the electrode 220 may be set according to the specific position where the ECG signal needs to be collected, and may be determined according to the preset shape of the flexible wearable ECG sensor. For example, the preset position of the electrode 220 may be set according to the upper limb part, the chest part, the lower limb part, etc. of the ECG acquisition object. The preset docking position may be a position pre-set for connecting the signal acquisition device, and the preset docking position may be determined according to the preset shape of the flexible wearable ECG sensor.

[0089] Among them, the electrode 220 can be used to collect the ECG signal of the ECG acquisition object, and the number of electrodes 220 can be multiple. For example, the number of electrodes 220 and the preset position of electrodes 220 can be set according to the acquisition requirements of twelve-lead ECG signals. The conductive connection point 230 can be a connection point for connecting an external signal acquisition device. For example, the conductive connection point 230 can be an end point of a gold finger for connecting an external element. The conductive line 240 can be a line for connecting the electrode 220 and the conductive connection point 230. The number of conductive lines 240 can be multiple. For example, the number of conductive lines 240 can be determined according to the number of electrodes 220.

[0090] Exemplarily, a circuit printing process may be used to form electrodes 220 at preset positions of a preset number of electrodes 220 on the first surface of the flexible substrate 210. For example, silver / silver chloride may be printed at preset positions of each electrode 220 on the first surface of the flexible substrate 210 to form electrodes 220. A circuit printing process may be used to form conductive connection points 230 at preset docking positions on the first surface of the flexible substrate 210. For example, a gold finger for connecting a signal acquisition device may be formed at a preset docking position on the first surface of the flexible substrate 210 to obtain an end point of the gold finger for connecting the signal acquisition device as a conductive connection point 230. A circuit printing process may be used to form conductive circuits 240 for correspondingly connecting electrodes 220 and conductive connection points 230 on the first surface of the flexible substrate 210. For example, conductive silver paste may be printed on the first surface of the flexible substrate 210 to form conductive circuits 240. Printing pastes of composite pastes such as conductive silver paste, conductive carbon paste, conductive copper paste, and silver-coated copper paste may also be used to realize integrated conductive circuits 240 through a printing process. As an example, electrode A1 corresponds to conductive connection point B1, and a conductive line C1 connecting electrode A1 and conductive connection point B1 can be formed; electrode A2 corresponds to conductive connection point B2, and a conductive line C2 connecting electrode A2 and conductive connection point B2 can be formed. Among them, each conductive line 240 may not be connected, and there is a gap between two adjacent conductive lines 240, so that the collected ECG signal is not affected and the ECG signal is stable and reliable.

[0091] Optionally, the connection between the electrode 220 and the conductive circuit 240 can be achieved by overlapping or stacking. The printing order of the electrode 220 and the conductive circuit 240 may not be fixed.

[0092] Exemplarily, the multiple electrodes 220 formed at the preset positions of the electrodes 220 can be used to collect ECG signals from a predetermined part of the ECG collection object, and the ECG signals are transmitted to the conductive connection points 230 corresponding to the respective electrodes 220 through the conductive lines 240 connected to the respective electrodes 220. Through the connection between the conductive connection points 230 and the signal collection device, the signal collection device can collect the ECG signals from the predetermined part of the ECG collection object.

[0093] In some specific embodiments, electrodes are printed at preset electrode positions and conductive connection points are printed at preset docking positions on the first surface of a flexible substrate, and conductive circuits are printed to connect each electrode and the conductive connection points. The conductive connection points can be used to connect a signal acquisition device, so that the lead circuit and the electrode are an integrated product. A flexible wearable ECG sensor with a simple structure is obtained through the above-mentioned preparation method, which can realize the collection of ECG signals, thereby making the wearable ECG sensor thin and light, which is convenient for wearing.

[0094] In an exemplary embodiment, the method further comprises:

[0095] A detachable component is installed at the preset docking position, and the detachable component is used for detachably connecting the signal acquisition device.

[0096] The detachable component may be a component used for detachably connecting a signal acquisition device.

[0097] Exemplarily, the detachable component may be detachably connected to the signal collection device on the second surface of the flexible substrate.

[0098] Optionally, a perforation may be formed on the detachable component, and the conductive connection point and part of the conductive circuit connected thereto may be folded from the first surface of the flexible substrate to the second surface of the flexible substrate through the perforation, and connected to the pins of the signal acquisition device on the second surface. The second surface may be a surface opposite or opposite to the first surface, and the second surface and the first surface are two surfaces of the flexible substrate respectively. For example, if the first surface is taken as the front side of the flexible substrate, the first surface is the back side of the flexible substrate. In this way, through the preparation method of the above-mentioned flexible wearable ECG sensor, the first surface can be brought close to the skin of the ECG acquisition subject to collect ECG signals, and the second surface forms a detachable component to connect the signal acquisition device, so as to avoid the detachable component and the signal acquisition device being close to the skin of the ECG acquisition subject, thereby facilitating the ECG acquisition subject to wear the flexible wearable ECG sensor.

[0099] In some specific embodiments, a detachable component is installed at a preset docking position, and the detachable component is used to detachably connect a signal acquisition device, which is conducive to the setting of a flexible wearable ECG sensor that integrates the entire monitoring system, thereby facilitating the flexible wearable ECG sensor to collect ECG signals, reducing the thickness and weight of the flexible wearable ECG sensor, and having high wearability.

[0100] In an exemplary embodiment, Figure 3 As shown, the method also includes:

[0101] An insulating protection layer 310 is formed on the conductive circuit.

[0102] The insulating protective layer 310 may have multiple layers, and the number of layers of the insulating protective layer 310 may be set according to the strength of the collected ECG signal.

[0103] Exemplarily, an insulating protective layer 310 may be formed on the conductive line, for example, one or more insulating protective layers 310 of insulating resin, insulating oil, etc. may be formed on the conductive line. This is helpful to isolate external noise signal interference and improve the collection quality of ECG signals.

[0104] In some specific embodiments, by forming an insulating protective layer 310 on the conductive circuit, interference from external noise signals can be isolated, thereby improving the accuracy of the collected ECG signal.

[0105] In an exemplary embodiment, forming an insulating protection layer on a conductive line includes:

[0106] Forming an insulating oil protective layer on the conductive circuit;

[0107] A flexible protective film is formed on the insulating oil protective layer.

[0108] The insulating oil protective layer may be a protective layer made of insulating oil. The flexible protective film may be a protective film used for insulation and having flexible properties, and may be made of polymer materials, such as polyethylene, polypropylene, and the like.

[0109] For example, a printing process can be used to form a layer of insulating oil on the conductive circuit as an insulating protective layer. A flexible protective film can be formed on the insulating oil protective layer as another insulating protective layer. As an example, the finished flexible protective film can be directly covered on the insulating oil protective layer as an insulating protective layer. As another example, liquid insulating glue is covered on the surface of the insulating oil protective layer by dispensing with a glue dispenser, and the liquid insulating glue is cured by a UV curing process, a heat curing process, or an infrared curing process, and fixed to the surface of the conductive circuit.

[0110] Optionally, a die-cutting process can be further used to die-cut the flexible substrate, electrodes, conductive circuits, conductive connection points, insulating oil protective layer, flexible protective film, etc. according to a preset pattern to obtain a printed die-cut finished product.

[0111] In some specific embodiments, by forming an insulating oil protective layer on the conductive circuit; and forming a flexible protective film on the insulating oil protective layer, the pressure resistance of the protective layer can be achieved, and interference with the collection of ECG signals can be prevented, so that effective collection of ECG signals can be achieved through a thin and flexible wearable ECG sensor, reducing the thickness of the device for collecting ECG signals.

[0112] In an exemplary embodiment, forming an insulating protection layer on a conductive line includes:

[0113] The insulating protective layer does not cover the electrodes.

[0114] For example, the insulating protective layer may not cover the electrodes, the conductive connection points and part of the wire lines connected to the conductive connection points, so as to obtain the ECG signal of the ECG acquisition object through the electrodes and transmit the ECG signal through the conductive connection points. As an example, the insulating protective layer may not cover the gold finger on the second surface of the flexible substrate.

[0115] In some specific embodiments, by making the insulating protective layer not cover the electrodes, it is possible to prevent external signals from interfering with the collection of ECG signals, and to enable the collection of ECG signals, thereby enabling the collection of ECG signals through a thin, flexible, wearable ECG sensor.

[0116] In an exemplary embodiment, forming a conductive line for connecting each electrode and a conductive connection point includes:

[0117] For each electrode, a conductive circuit is formed between the electrode and a conductive connection point corresponding to the electrode;

[0118] Gaps are formed between any two adjacent conductive lines.

[0119] Exemplarily, for each electrode, there may be a conductive connection point corresponding thereto, and a conductive line may be formed between the electrode and its corresponding conductive connection point. A gap may be formed between two adjacent conductive lines. For example, a conductive line C1 may be formed between the electrode A1 and its corresponding conductive connection point B1; and a conductive line C2 may be formed between the electrode A2 and its corresponding conductive connection point B2. If the conductive line C1 and the conductive line C2 are adjacent conductive lines, a gap of a certain distance may be formed between the conductive line C1 and the conductive line C2.

[0120] In some specific embodiments, for each electrode, a conductive circuit is formed between the electrode and the conductive connection point corresponding to the electrode; and a gap is formed between two adjacent conductive circuits, which can ensure that the ECG signals collected by each motor are not affected by each other, thereby improving the quality of the ECG signals.

[0121] In an exemplary embodiment, the method further comprises:

[0122] A conductive hydrogel is formed on the electrode.

[0123] Exemplarily, a conductive hydrogel may be formed on the electrode on the first surface of the flexible substrate. The conductive hydrogel may be used to transmit the ECG signal of the ECG acquisition object, by attaching the conductive hydrogel to the ECG acquisition part of the ECG acquisition object, the conductive hydrogel contacts the ECG acquisition object, and the ECG signal is transmitted to the electrode through the conductive hydrogel.

[0124] In some specific embodiments, the transmission quality of ECG signals can be improved by forming a conductive hydrogel on the electrode.

[0125] In an exemplary embodiment, see Figure 4 , the method further comprises:

[0126] forming a release film 420 on the conductive hydrogel 410;

[0127] For example, a die-cutting process may be used to die-cut the conductive hydrogel 410 and the release film 420 into a preset pattern, and the die-cut conductive hydrogel 410 and the release film 420 are covered on the electrode.

[0128] Optionally, the liquid hydrogel glue can be covered on the surface of the electrode by dispensing with a glue dispenser, and the hydrogel can be cured by a UV curing process, a heat curing process, or an infrared curing process, and fixed on the surface of the electrode; the liquid hydrogel glue can also be printed on the surface of the electrode, and the hydrogel can be cured by a UV curing process, a heat curing process, or an infrared curing process, and fixed on the surface of the electrode.

[0129] In some specific embodiments, by forming a release film 420 on the conductive hydrogel 410, the conductive hydrogel 410 can be protected, thereby improving the quality of the flexible wearable ECG sensor.

[0130] In an exemplary embodiment, Figure 5 As shown, the method also includes:

[0131] A non-woven tape 510 is formed at the predetermined electrode position on the second surface of the flexible substrate.

[0132] The second surface may be a surface opposite to or opposite to the first surface.

[0133] Exemplarily, a non-woven tape 510 may be formed at a position on the second surface of the flexible substrate corresponding to the preset position of the electrode, so that the flexible wearable ECG sensor can be easily attached to the ECG collection object.

[0134] Optionally, a die-cutting process may be used to die-cut the non-woven tape 510 into shape.

[0135] In some specific embodiments, by forming a non-woven tape 510 at the preset electrode position on the second surface of the flexible substrate, the flexible wearable ECG sensor is facilitated to be close to the ECG collection object, so that the flexible wearable ECG sensor can collect ECG signals, thereby ensuring that the flexible wearable ECG sensor is light and thin.

[0136] In an exemplary embodiment, the method further comprises:

[0137] A character label semi-finished product is formed on the non-woven fabric tape, and the character label semi-finished product is used to mark the position of the electrode.

[0138] The character label may be a label used to identify the position of an electrode, or a label used to identify the collection site of an ECG collection object.

[0139] Exemplarily, a printing process may be used to print a character label on the non-adhesive surface of the flexible tape, and to form a character label with the flexible tape on the non-woven tape.

[0140] Alternatively, if Figure 6 As shown, a character label can be printed on the non-adhesive surface of the flexible tape, and the flexible tape printed with the character label can be die-cut into a preset pattern using a die-cutting process to obtain a character label semi-finished product 610, and the character label semi-finished product 610 can be covered on the non-woven tape. Among them, C1-C6, R, L, N, and F can be used as electrode identification.

[0141] In some specific embodiments, a character label semi-finished product is formed on a non-woven fabric tape so that the ECG acquisition subject can wear the flexible wearable ECG sensor in the correct position, thereby improving the quality of the ECG signal.

[0142] In an exemplary embodiment, the method further comprises:

[0143] According to the preset shapes corresponding to the preset positions of the electrodes, the preset shapes corresponding to the preset docking positions and the preset shapes corresponding to the conductive circuits, the electrodes, the conductive connecting points and the conductive circuits are die-cut and formed respectively by using a die-cutting process.

[0144] Exemplarily, a die-cutting process may be used to die-cut the flexible substrate and the electrode at the preset position of the electrode into a preset shape corresponding to the preset position of the electrode. A die-cutting process may be used to die-cut the flexible substrate and the conductive connection point at the preset docking position into a preset shape corresponding to the preset docking position. A die-cutting process may be used to die-cut the flexible substrate and the conductive circuit at the location of the conductive circuit into a preset shape corresponding to the conductive circuit.

[0145] Optionally, a die-cutting process may be used to die-cut the insulating protective layer at the location of the conductive circuit into a preset shape corresponding to the conductive circuit.

[0146] In some specific embodiments, according to the preset shapes corresponding to the preset positions of the electrodes, the preset shapes corresponding to the preset docking positions, and the preset shapes corresponding to the conductive circuits, a die-cutting process is adopted to respectively die-cut and shape the electrodes, the conductive connection points, and the conductive circuits, thereby reducing the mass of the flexible wearable ECG sensor and improving the usability of the flexible wearable ECG sensor.

[0147] In an exemplary embodiment, a die-cutting process can be used to die-cut the flexible substrate into a preset shape corresponding to the preset position of the electrode, the preset shape corresponding to the preset docking position, and the preset shape corresponding to the conductive circuit. Then, the circuit can be printed on the die-cut flexible substrate according to step S104.

[0148] In an exemplary embodiment, electrodes are formed corresponding to a plurality of preset electrode positions, conductive connection points are formed at preset docking positions, and conductive lines are formed for connecting each electrode and the conductive connection point, including:

[0149] The circuit printing process is adopted to print silver and / or silver chloride at each preset position of the electrode to form the electrode.

[0150] Exemplarily, a circuit printing process may be used to print silver and / or silver chloride at each preset electrode position on the first surface of the flexible substrate to form an electrode, which can improve the transmission quality of the ECG signal.

[0151] In an exemplary embodiment, Figure 7 As shown, circuit printing is performed on the flexible substrate 210 according to step S104 to form a printed die-cut semi-finished product 710 including electrodes 220, conductive connection points 230, and conductive circuits 240. The release film 420, the conductive hydrogel 410, the printed die-cut semi-finished product 710, the non-woven tape 510, and the character label semi-finished product 610 can be assembled in sequence to obtain a flexible wearable ECG sensor.

[0152] For example, based on the printed die-cut semi-finished product 710, a conductive hydrogel 410 can be formed on the electrode on the first surface of the printed die-cut semi-finished product 710, a release film 420 can be formed on the conductive hydrogel 410, a non-woven tape 510 can be formed on the position of the electrode corresponding to the second surface of the printed die-cut semi-finished product 710, and a character label semi-finished product 610 can be formed on the non-woven tape 510 to obtain a flexible wearable ECG sensor.

[0153] Furthermore, if Figure 8 As shown, the flexible wearable ECG sensor 810 and the semi-finished plastic shell 820 can also be assembled by double-sided adhesive to obtain a flexible wearable ECG sensor with a shell.

[0154] In some specific embodiments, the lead cable (conductive circuit) and the electrode are integrated into an integrated production process so that the flexible wearable ECG sensor can be worn quickly and accurately. The flexible wearable ECG sensor can be connected to the signal acquisition device by crimping, and the crimping method can be achieved by the shell of the signal acquisition device and the shell structure of the flexible wearable ECG sensor; the signal acquisition device can be embedded in the injection molded shell of the wearable ECG sensor to form an integrated monitoring system, which is convenient and simple to use. The guide point circuit adopts the printed wire process, and the production process is simple; the preparation method of the flexible wearable ECG sensor can be applied to the twelve-lead dynamic ECG sensor, so that the twelve-lead dynamic ECG sensor is thin and light, has good adhesion to the ECG acquisition object, and collects ECG signals stably and reliably. The flexible wearable ECG sensor can be fixed on the skin surface of the ECG acquisition object by non-woven tape, which is comfortable to wear, breathable, and has no foreign body sensation, and basically does not affect sleep. And the flexible wearable ECG sensor can be disposable and more hygienic to use. The conductive connection points in the flexible wearable ECG sensor can be adjusted, thereby improving the adaptability and diversity of the flexible wearable ECG sensor in connecting the ECG collection device.

[0155] It should be understood that although Figure 1 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0156] In an exemplary embodiment, please refer to Figure 2 , and also provides a flexible wearable electrocardiogram sensor, including:

[0157] Flexible substrate 210;

[0158] Among them, the flexible substrate 210 can be a substrate formed of a flexible material, and can be a flexible material with the advantages of being light, transparent, flexible and stretchable. For example, the flexible substrate 210 can be polyvinyl alcohol (PVA), polyester (PET), polyimide (PI), polyethylene naphthalate (PEN), etc.; as an example, using PET film as the flexible substrate 210 of a flexible wearable ECG sensor, 220 layers of electrodes and 240 layers of conductive circuits can be set.

[0159] A plurality of electrodes 220 , wherein the plurality of electrodes 220 are disposed in a one-to-one correspondence at preset positions of the electrodes 220 on the first surface of the flexible substrate 210 ;

[0160] A conductive connection point 230 is disposed at a preset docking position on the first surface of the flexible substrate 210, and the conductive connection point 230 is used to connect to a signal collection device;

[0161] The conductive circuits 240 are respectively connected to the electrodes 220 and the conductive connection points 230 to transmit the electrocardiographic signals collected by the electrodes 220 to the signal collection device via the conductive connection points 230 .

[0162] Among them, the first surface may be one of the two surfaces of the flexible substrate 210; the first surface may be a preset surface for setting the electrode 220, the conductive connection point 230, and the conductive line 240. As an example, the first surface may be the surface of the flexible substrate 210 close to the skin of the ECG acquisition object, and the ECG acquisition object may be an object whose ECG signal needs to be collected. The preset position of the electrode 220 may be the position of the electrode 220 pre-set on the flexible substrate 210; the preset position of the electrode 220 may be set according to the specific position where the ECG signal needs to be collected, and may be determined according to the preset shape of the flexible wearable ECG sensor. The preset docking position may be a position pre-set for connecting the signal acquisition device, and the preset docking position may be determined according to the preset shape of the flexible wearable ECG sensor.

[0163] Among them, the electrode 220 can be used to collect the ECG signal of the ECG acquisition object, and the number of electrodes 220 can be multiple. For example, the number of electrodes 220 and the preset position of electrodes 220 can be set according to the acquisition requirements of twelve-lead ECG signals. The conductive connection point 230 can be a connection point for connecting an external signal acquisition device. For example, the conductive connection point 230 can be an end point of a gold finger for connecting an external element. The conductive line 240 can be a line for connecting the electrode 220 and the conductive connection point 230. The number of conductive lines 240 can be multiple. For example, the number of conductive lines 240 can be determined according to the number of electrodes 220.

[0164] Exemplarily, a flexible material capable of printing electrodes 220, conductive lines 240 and conductive connection points 230 can be provided as a flexible substrate 210 of a wearable ECG sensor to reduce the thickness of the flexible wearable ECG sensor, making the flexible wearable ECG sensor thinner and lighter.

[0165] Exemplarily, the electrodes 220 may be arranged at a preset number of electrode 220 preset positions 220 on the first surface of the flexible substrate 210. For example, silver / silver chloride may be arranged as the electrodes 220 at each electrode 220 preset position 220 on the first surface of the flexible substrate 210. The electrode 220 preset positions at which the electrodes 220 are arranged may be determined according to a predetermined position for collecting ECG signals from an ECG collection object. For example, the electrode 220 preset positions of the electrodes 220 may be arranged corresponding to an upper limb, a chest cavity, or a lower limb.

[0166] The conductive connection point 230 may be provided at a preset docking position on the first surface of the flexible substrate 210. For example, a gold finger for connecting a signal acquisition device may be provided at the preset docking position on the first surface of the flexible substrate 210, and an end point of the gold finger for connecting the signal acquisition device may be used as the conductive connection point 230. The preset docking position of the conductive connection point 230 may be provided at a corresponding chest cavity portion.

[0167] A conductive circuit 240 for correspondingly connecting the electrode 220 and the conductive connection point 230 can be set on the first surface of the flexible substrate 210. For example, a conductive silver paste can be set on the first surface of the flexible substrate 210 as the conductive circuit 240. The conductive circuit 240 can also be a printing paste of a composite paste such as a conductive silver paste, a conductive carbon paste, a conductive copper paste, and a silver-coated copper paste. As an example, if the electrode A1 corresponds to the conductive connection point 230B1, a conductive circuit C1 connecting the electrode A1 and the conductive connection point B1 can be set; if the electrode A2 corresponds to the conductive connection point B2, a conductive circuit C2 connecting the electrode A2 and the conductive connection point B2 can be set. Among them, each conductive circuit 240 may not be connected, and there is a gap between two adjacent conductive circuits 240, so that the collected ECG signal is not affected and the ECG signal is stable and reliable. The conductive circuit 240 can collect the ECG signal collected by each electrode 220 to the conductive connection point 230 at the preset docking position, and transmit the ECG signal to the signal acquisition device through the connection between the conductive connection point 230 and the signal acquisition device.

[0168] Optionally, the electrode 220 and the conductive line 240 may be connected by overlapping or stacking. A conductive connection point 230 and a conductive line 240 of a preset length connected to the conductive connection point 230 may be provided as a gold finger.

[0169] Exemplarily, multiple electrodes 220 set at preset positions of the electrodes 220 can be used to collect ECG signals from predetermined parts of the ECG collection object, and the ECG signals are transmitted to the conductive connection points 230 corresponding to each electrode 220 through the conductive lines 240 connected to each electrode 220. Through the connection between the conductive connection points 230 and the signal collection device, the signal collection device can collect the ECG signals of the predetermined parts of the ECG collection object.

[0170] In some specific embodiments, multiple electrodes are arranged one by one at preset electrode positions on the first surface of the flexible substrate, conductive connection points are arranged at preset docking positions of the flexible substrate, and conductive lines connecting each electrode and the conductive connection points are arranged. Through the above structure, the ECG signals collected by the electrodes can be transmitted to the signal acquisition device via the conductive connection points to realize the ECG signal collection function. In this way, the ECG signals can be collected through a simple and thin flexible wearable ECG sensor, which can effectively reduce the thickness of the wearable ECG sensor and facilitate wearability.

[0171] In an exemplary embodiment, it also includes:

[0172] A detachable component is arranged at the preset docking position.

[0173] The detachable component may be a component used for detachably connecting a signal acquisition device.

[0174] Exemplarily, the detachable component may be disposed at a position on the second surface of the flexible substrate corresponding to a preset docking position, and the detachable component may be detachably connected to the signal collection device on the second surface of the flexible substrate.

[0175] Optionally, the detachable component may be provided with perforations, and the conductive connection points and the partially conductive circuits connected thereto may be folded from the first surface of the flexible substrate to the second surface of the flexible substrate through the perforations, and connected to the pins of the signal acquisition device on the second surface. The second surface may be a surface opposite or opposite to the first surface, and the second surface and the first surface are two surfaces of the flexible substrate respectively. For example, if the first surface is taken as the front side of the flexible substrate, the first surface is the back side of the flexible substrate. In this way, through the structure of the above-mentioned flexible wearable ECG sensor, the first surface can be brought close to the skin of the ECG acquisition subject to collect ECG signals, and the second surface forms a detachable component to connect the signal acquisition device, so as to avoid the detachable component and the signal acquisition device being close to the skin of the ECG acquisition subject, thereby facilitating the ECG acquisition subject to wear the flexible wearable ECG sensor.

[0176] In some specific embodiments, a detachable component is provided at a preset docking position, and the detachable component is used for detachably connecting a signal acquisition device, which is conducive to the setting of a flexible wearable ECG sensor that integrates a whole monitoring system, thereby facilitating the flexible wearable ECG sensor to collect ECG signals, reducing the thickness and weight of the flexible wearable ECG sensor, and achieving high wearability.

[0177] In an exemplary embodiment, Figure 7 As shown, it also includes:

[0178] The insulating protection layer 310 is disposed on the conductive circuit 240 .

[0179] The insulating protective layer may have multiple layers, and the number of insulating protective layers may be set according to the strength of the collected ECG signal.

[0180] For example, an insulating protective layer may be provided on the conductive line, for example, one or more insulating protective layers of insulating resin, insulating oil, etc. may be provided on the conductive line, so as to isolate external noise signal interference and improve the acquisition quality of ECG signals.

[0181] In some specific embodiments, by providing an insulating protective layer on the conductive line, interference from external noise signals can be isolated, thereby improving the accuracy of the collected ECG signals.

[0182] In an exemplary embodiment, the insulating protective layer comprises:

[0183] An insulating oil protective layer is provided on the conductive circuit;

[0184] The flexible protective film is arranged on the insulating oil protective layer.

[0185] The insulating oil protective layer may be a protective layer made of insulating oil. The flexible protective film may be a protective film used for insulation and having flexible properties, and may be made of polymer materials, such as polyethylene, polypropylene, and the like.

[0186] For example, a layer of insulating oil can be provided on the conductive line as an insulating protective layer. A flexible protective film can be provided on the insulating oil protective layer as another insulating protective layer. As an example, the finished flexible protective film can be directly covered on the insulating oil protective layer as an insulating protective layer.

[0187] Optionally, the flexible substrate, electrodes, conductive lines, conductive connection points, insulating oil protective layer, flexible protective film, etc. may be arranged according to a preset pattern.

[0188] In some specific embodiments, by providing an insulating oil protective layer on the conductive circuit, and providing a flexible protective film on the insulating oil protective layer, the pressure resistance of the protective layer can be achieved, and interference with the collection of ECG signals can be prevented. Thus, effective collection of ECG signals can be achieved through a thin and flexible wearable ECG sensor, and the thickness of the device for collecting ECG signals can be reduced.

[0189] In an exemplary embodiment, Fig. 9 As shown, the flexible substrate corresponding to the conductive line position is located at the first layer 910 at the conductive line position; the conductive line is located at the second layer 920 at the conductive line position; at least part of the insulating oil protection layer is located at the third layer 930 at the conductive line position; at least part of the flexible protection film is located at the fourth layer 940 at the conductive line position. The conductive line position may be a position corresponding to the conductive line arranged on the flexible substrate, and may include the position of the conductive line and its corresponding interval.

[0190] Exemplarily, at the conductive circuit position of the flexible wearable ECG sensor where the conductive circuit is set, the flexible substrate is set as the first layer 910 at the conductive circuit position, the conductive circuit is set on the flexible substrate as the second layer 920 at the conductive circuit position, at least a portion of the insulating oil protective layer is set on the conductive circuit as the third layer 930 at the conductive circuit position, and at least a portion of the flexible protective film is set on the insulating oil protective layer as the fourth layer 940 at the conductive circuit position; wherein, the insulating oil protective layer may partially overflow at a position outside the conductive circuit, for example, the conductive circuit may not be completely covered on the flexible substrate, then the insulating oil protective layer may completely cover the conductive circuit and the flexible substrate without the conductive circuit, and the flexible substrate without the conductive circuit may be the above-mentioned part overflowing at a position outside the conductive circuit. The flexible protective film may also have a partially overflowed portion at a position outside the flexible protective film. As an example, both the insulating oil protective layer and the flexible protective film must at least cover the conductive circuit.

[0191] In some specific embodiments, by setting the first layer in which the flexible substrate is located at the conductive circuit position; the second layer in which the conductive circuit is located at the conductive circuit position; the third layer in which at least a portion of the insulating oil protective layer is located at the conductive circuit position; and the fourth layer in which at least a portion of the flexible protective film is located at the conductive circuit position, the flexible wearable ECG sensor can collect ECG signals. In this way, the ECG signals can be collected through a simpler 4-layer structure, thereby ensuring the thinness of the flexible wearable ECG sensor, reducing the thickness of the flexible wearable ECG sensor, and improving wearability.

[0192] In an exemplary embodiment, the thickness of the flexible substrate, the conductive traces, and the insulating protective layer ranges from 8 to 15 microns.

[0193] Exemplarily, the thickness of the flexible substrate, the conductive line and the insulating protective layer ranges from 3 to 50 um. As an example, the thickness of the flexible substrate, the conductive line and the insulating protective layer can be set in the range of 8 to 15 um.

[0194] In some specific embodiments, by setting the thickness of the flexible substrate, the conductive circuit and the insulating protective layer to be in the range of 8 to 15 microns, it is possible to ensure that the flexible wearable ECG sensor is thin enough, reduce the thickness of the flexible wearable ECG sensor, and improve wearability.

[0195] In an exemplary embodiment, it also includes:

[0196] The insulating protective layer is arranged in a form that does not cover the electrode;

[0197] Exemplarily, the insulating protective layer may be configured not to cover the electrodes, and may be configured not to cover the conductive connection points and part of the wire lines connected to the conductive connection points, so as to obtain the ECG signal of the ECG acquisition object through the electrodes, and transmit the ECG signal through the conductive connection points. As an example, the insulating protective layer may be configured not to cover the gold finger on the second surface of the flexible substrate.

[0198] In some specific embodiments, by setting the insulating protective layer in a form that does not cover the electrodes, it is possible to prevent external signals from interfering with the collection of ECG signals, and to enable the collection of ECG signals, thereby enabling the collection of ECG signals through a thin and flexible wearable ECG sensor.

[0199] In an exemplary embodiment, the number of the conductive lines is multiple;

[0200] For each conductive line, the conductive line is respectively connected to an electrode and a conductive connection point corresponding to the electrode;

[0201] There are gaps between any two adjacent conductive lines.

[0202] Exemplarily, for each electrode, there may be a conductive connection point corresponding thereto, and a conductive line may be provided between the electrode and its corresponding conductive connection point. A gap is provided between two adjacent conductive lines. For example, a conductive line C1 may be provided between the electrode A1 and its corresponding conductive connection point B1; and a conductive line C2 may be provided between the electrode A2 and its corresponding conductive connection point B2. If the conductive line C1 and the conductive line C2 are adjacent conductive lines, a gap of a certain distance is provided between the conductive line C1 and the conductive line C2.

[0203] In some specific embodiments, for each electrode, a conductive circuit is set between the electrode and the conductive connection point corresponding to the electrode; and a gap is set between two adjacent conductive circuits, which can ensure that the ECG signals collected by each motor are not affected by each other, thereby improving the quality of the ECG signals.

[0204] In an exemplary embodiment, Figure 7 As shown, it also includes:

[0205] The conductive hydrogel 410 is disposed on the electrode 220 .

[0206] Exemplarily, a conductive hydrogel 410 may be provided on the electrode 220 on the first surface of the flexible substrate 210. The conductive hydrogel 410 may be used to transmit the ECG signal of the ECG acquisition object, and the conductive hydrogel 410 is attached to the ECG acquisition part of the ECG acquisition object, and the conductive hydrogel 410 contacts the ECG acquisition object, and the ECG signal is transmitted to the electrode 220 through the conductive hydrogel.

[0207] In some specific embodiments, by providing a conductive hydrogel on the electrode, the transmission quality of the ECG signal can be improved.

[0208] In an exemplary embodiment,

[0209] The release film 420 is disposed on the conductive hydrogel 410 .

[0210] Exemplarily, the conductive hydrogel 410 and the release film 420 may be arranged in a preset pattern, and the conductive hydrogel 410 and the release film 420 in the preset pattern are covered on the electrode 220 .

[0211] In some specific embodiments, by providing a release film on the conductive hydrogel, the conductive hydrogel can be protected, thereby improving the quality of the flexible wearable ECG sensor.

[0212] In an exemplary embodiment, it also includes:

[0213] The non-woven tape 510 is disposed on the preset electrode position on the second surface of the flexible substrate 210 .

[0214] The second surface may be a surface opposite to or opposite to the first surface.

[0215] Exemplarily, a non-woven tape 510 may be provided at a position on the second surface of the flexible substrate 210 corresponding to a preset position of the electrode, so that the flexible wearable ECG sensor can be attached closely to the ECG collection object.

[0216] In some specific embodiments, by setting a non-woven tape at the preset position of the electrode on the second surface of the flexible substrate, the flexible wearable ECG sensor is facilitated to stick closely to the ECG collection object, so that the flexible wearable ECG sensor can collect ECG signals, thereby ensuring the thinness of the ECG signal flexible wearable ECG sensor.

[0217] In an exemplary embodiment, it also includes:

[0218] The semi-finished character label 610 is disposed on the non-woven fabric tape 510 , and the semi-finished character label 610 is used to mark the position of the electrode.

[0219] The semi-finished character label 610 may be a label for identifying the position of an electrode, or a label for identifying the collection site of an ECG collection object.

[0220] Exemplarily, a character label may be provided on the non-adhesive surface of the flexible tape, and a character label semi-finished product 610 with the flexible tape may be provided on the non-woven tape 510 .

[0221] In some specific embodiments, a character label semi-finished product is formed on a non-woven fabric tape so that the ECG acquisition subject can wear the flexible wearable ECG sensor in the correct position, thereby improving the quality of the ECG signal.

[0222] In an exemplary embodiment, see Fig.10 as well as Figure 7 At the preset electrode position, with the direction from the skin close to the ECG acquisition object to the skin far away from the ECG acquisition object as the sequential direction, the first layer 11 at the preset electrode position is set as a release film 420, the second layer 12 at the preset electrode position is set as a conductive hydrogel 410, the third layer 13 at the preset electrode position is set as an insulating protective layer 310, the fourth layer 14 at the preset electrode position is set as an electrode 220, the fifth layer 15 at the preset electrode position is set as a flexible substrate 210, the sixth layer 16 at the preset electrode position is set as a non-woven tape 510, and the seventh layer 17 at the preset electrode position is set as a character label semi-finished product 610.

[0223] In an exemplary embodiment, a wearable device is provided, comprising the flexible wearable electrocardiogram sensor as described above.

[0224] The wearable device includes a flexible wearable electrocardiogram sensor with a simple structure and light weight, thereby making the wearable device lighter and easier to wear.

[0225] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0226] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features of the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0227] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A method for preparing a flexible wearable electrocardiogram sensor, characterized in that: The method comprises: providing a flexible substrate; A circuit printing process is used on the first surface of the flexible substrate to form electrodes corresponding to the preset positions of the electrodes, to form conductive connection points at the preset docking positions, and to form a conductive circuit for connecting each of the electrodes and the conductive connection points, so as to transmit the electrocardiogram signals collected by the electrodes to the conductive connection points via the conductive circuit; Wherein, the conductive connection point is used to connect a signal acquisition device.

2. The preparation method according to claim 1, characterized in that: The method further comprises: A detachable component is installed at the preset docking position, and the detachable component is used for detachably connecting to the signal acquisition device.

3. The preparation method according to claim 1, characterized in that: The method further comprises: An insulating protection layer is formed on the conductive circuit.

4. The preparation method according to claim 3, characterized in that: The step of forming an insulating protective layer on the conductive circuit comprises: forming an insulating oil protective layer on the conductive circuit; A flexible protective film is formed on the insulating oil protective layer.

5. The preparation method according to claim 3, characterized in that: The step of forming an insulating protective layer on the conductive circuit comprises: The insulating protection layer does not cover the electrode.

6. The preparation method according to claim 1, characterized in that: The forming of a conductive line for connecting each of the electrodes and the conductive connection point comprises: For each electrode, forming a conductive circuit between the electrode and a conductive connection point corresponding to the electrode; Gaps are formed between any two adjacent conductive lines.

7. The preparation method according to claim 1, characterized in that: The method further comprises: A conductive hydrogel is formed on the electrode.

8. The preparation method according to any one of claims 1 to 6, characterized in that: The method further comprises: A non-woven tape is formed at a preset electrode position on the second surface of the flexible substrate.

9. The preparation method according to claim 8, characterized in that: The method further comprises: A character label semi-finished product is formed on the non-woven fabric tape, and the character label semi-finished product is used to mark the electrode position.

10. The preparation method according to claim 1, characterized in that: The method further comprises: According to the preset shape corresponding to the preset position of the electrode, the preset shape corresponding to the preset docking position and the preset shape corresponding to the conductive circuit, the electrode, the conductive connection point and the conductive circuit are die-cut and formed respectively by using a die-cutting process.

11. The preparation method according to claim 1, characterized in that: The method of forming electrodes at the preset positions of the electrodes, forming conductive connection points at the preset docking positions, and forming conductive lines for connecting each of the electrodes and the conductive connection points comprises: The electrodes are formed by printing silver and / or silver chloride at each preset position of the electrodes using a circuit printing process.

12. A flexible wearable electrocardiogram sensor, characterized in that: include: A flexible substrate (210); A plurality of electrodes (220), wherein the plurality of electrodes (220) are arranged in a one-to-one correspondence at preset electrode positions on the first surface of the flexible substrate (210); A conductive connection point (230) is arranged at a preset docking position on the first surface of the flexible substrate (210), and the conductive connection point (230) is used to connect a signal collection device; The conductive circuit (240) is respectively connected to each of the electrodes (220) and the conductive connection point (230) so as to transmit the electrocardiographic signal collected by the electrode (220) to the signal collection device via the conductive connection point (230).

13. The flexible wearable ECG sensor according to claim 12, characterized in that: Also includes: The preset docking position is provided with a detachable component.

14. The flexible wearable ECG sensor according to claim 12, characterized in that: Also includes: An insulating protective layer (310), wherein the insulating protective layer (310) is disposed on the conductive circuit (240).

15. The flexible wearable ECG sensor according to claim 14, characterized in that: The insulating protective layer (310) comprises: An insulating oil protective layer is arranged on the conductive circuit (240); The flexible protective film is arranged on the insulating oil protective layer.

16. The flexible wearable ECG sensor according to claim 15, characterized in that: The flexible substrate (210) is located at the first layer (910) of the conductive circuit position; The conductive circuit (240) is located in the second layer (920) of the conductive circuit position; At least part of the insulating oil protective layer is located in the third layer (930) at the location of the conductive line; At least part of the flexible protective film is located on the fourth layer (940) at the location of the conductive circuit.

17. The flexible wearable ECG sensor according to claim 15, characterized in that: The thickness of the flexible substrate (210), the conductive line (240) and the insulating protection layer (310) ranges from 8 to 15 micrometers.

18. The flexible wearable ECG sensor according to claim 14, characterized in that: Also includes: The insulating protective layer (310) is provided in a form not to cover the electrode (220).

19. The flexible wearable ECG sensor according to claim 12, characterized in that: The number of the conductive lines (240) is multiple; For each conductive line (240), the conductive line (240) is respectively connected to one of the electrodes (220) and a conductive connection point (230) corresponding to the electrode (220); There is a gap between two adjacent conductive lines (240).

20. The flexible wearable ECG sensor according to claim 12, characterized in that: Also includes: The conductive hydrogel (410) is disposed on the electrode (220).

21. The flexible wearable ECG sensor according to any one of claims 12 to 20, characterized in that: Also includes: The non-woven fabric tape (510) is arranged on a preset electrode position on the second surface of the flexible substrate (210).

22. The flexible wearable ECG sensor according to claim 21, characterized in that: Also includes: A semi-finished character label (610) is disposed on the non-woven fabric tape (510), and the semi-finished character label is used to mark the position of the electrode (220).

23. A wearable device, characterized in that: Comprising a flexible wearable electrocardiogram sensor as described in any one of claims 12-22.

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