A flexible blood glucose electrochemical test probe and its assembly method

Abstract

The present invention provides a flexible blood glucose electrochemical test probe, which is composed of a first electrode assembly and a second electrode assembly, wherein the first electrode assembly includes, from bottom to top: a first flexible circuit substrate, on which a first electrode and at least one first annular external connection pad are provided; a first insulating layer; a first insulating adhesive layer; the second electrode assembly includes, from bottom to top: a second flexible circuit substrate, on which a second electrode and at least one second annular external connection pad are provided; a second insulating layer; a second insulating adhesive layer; the first electrode assembly and the second electrode assembly are adhered together via the second insulating adhesive layer. The flexible blood glucose electrochemical test probe of the present invention improves the stability and reliability of the probe while ensuring the comfort of the test subject, and has low requirements for production and assembly processes, making it more conducive to large-scale production and processing.

Description

Technical Field

[0001] The present invention relates to the technical field of blood sugar detection, and in particular to a flexible blood sugar electrochemical test probe and an assembling method thereof. Background Art

[0002] Diabetes is a disease caused by an abnormality in the pancreas that prevents the patient from producing enough insulin. Severe cases may develop a series of complications in the later stages, such as kidney failure and skin ulcers. Current medical treatments have yet to find a cure for the condition, and blood sugar can only be controlled through diet or insulin.

[0003] Most diabetics monitor blood sugar levels using traditional blood glucose meters and test strips. These measures blood sugar by measuring the current generated by the reaction between glucose in the blood and glucose oxidase in the test strips. Because these blood glucose tests often use fingertip blood, diabetic patients need to measure their glucose levels daily at designated time periods specified by healthcare providers. Besides the pain associated with repeated needle pricks, this testing method is also susceptible to external factors (diet, mood, exercise, etc.) and cannot effectively monitor the changing trends of a patient's blood sugar.

[0004] With the development of blood glucose monitoring technology, products for real-time dynamic blood glucose monitoring have appeared on the market. By implanting a glucose sensor probe into the human subcutaneous tissue, changes in human blood glucose can be monitored in real time. The sensor probe, in conjunction with external equipment, can dynamically monitor changes in blood glucose levels in diabetic patients 24 hours a day, providing reliable data information to professional medical staff, so as to better treat diabetic patients. Currently, dynamic blood glucose monitoring on the market mainly uses metal electrodes. Excessive size or thickness will greatly affect the user experience and interfere with daily life. Therefore, there are high requirements for the size of flexible implantable electrodes. In addition, this type of electrode involves the integration of multiple electrodes, and the production and assembly are relatively complex and difficult to assemble. The production and assembly process will inevitably have a great impact on the reliability and stability of the electrode, so the production and assembly process are relatively high. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the known technology and provide a flexible blood glucose electrochemical test probe, which improves the stability and reliability of the probe while ensuring the comfort of the subject, and has lower requirements on the production and assembly processes, which is more conducive to the realization of large-scale production and processing.

[0006] The present invention is achieved through the following technical solutions. According to the present invention, a flexible blood glucose electrochemical test probe is provided, which consists of a first electrode assembly and a second electrode assembly, wherein:

[0007] The first electrode assembly includes, from bottom to top:

[0008] a first flexible circuit substrate, wherein a first electrode and at least one first annular external bonding pad are provided on the first flexible circuit substrate, and the first electrode and the first annular external bonding pad are connected via a first wire;

[0009] a first insulating layer, wherein a first electrode groove is formed in the first insulating layer;

[0010] a first insulating adhesive layer;

[0011] The second electrode assembly includes, from bottom to top:

[0012] a second flexible circuit substrate, wherein a second electrode and at least one second annular external bonding pad are provided on the second flexible circuit substrate, and the second electrode and the second annular external bonding pad are connected via a second wire;

[0013] a second insulating layer, wherein the second insulating layer is provided with a second electrode groove at a position corresponding to the first electrode groove;

[0014] a second insulating adhesive layer;

[0015] The first insulating layer, the first insulating adhesive layer, the second insulating layer, and the second insulating adhesive layer are provided with pad holes at positions corresponding to the first annular external connection pad and the second annular external connection pad; the first flexible circuit substrate is provided with a pad hole at a position corresponding to the second annular external connection pad; and the second flexible circuit substrate is provided with a pad hole at a position corresponding to the first annular external connection pad;

[0016] The first electrode assembly and the second electrode assembly are adhered together via a second insulating adhesive layer.

[0017] Since the metal electrodes are extremely thin, they can be easily mixed up by the naked eye; and since the electrodes are coated with enzymes, the junction of the two electrodes can easily cause mutual contamination of the enzymes; however, by adopting the above structure, the flexible blood glucose electrochemical test probe is divided into two electrode assemblies, which can realize the two electrodes being processed separately, made into components and then assembled together, which can effectively avoid the two electrodes from being mixed up and contaminated with each other; and the multi-layer composite structure of the flexible circuit substrate is adopted, with a total thickness of no more than 1mm, which can ensure the comfort of the person being tested.

[0018] The present invention can also be further implemented by taking the following technical solutions:

[0019] Preferably, in the aforementioned flexible blood glucose electrochemical testing probe, the number of the first annular external connection pads is two; the number of the second annular external connection pads is two.

[0020] Preferably, the aforementioned flexible blood glucose electrochemical test probe is provided with a conductive component in the pad hole corresponding to at least one of the first annular external connection pads and at least one of the second annular external connection pads, so that the first electrode assembly, the second electrode assembly and the pads on the main control PCB are conductively connected.

[0021] Preferably, in the aforementioned flexible blood glucose electrochemical testing probe, the first annular external connection pad and the second annular external connection pad are arranged on different sides of the first flexible circuit substrate and the second flexible circuit substrate.

[0022] Preferably, in the aforementioned flexible blood glucose electrochemical test probe, a third insulating adhesive layer is further provided on the lower end surface of the second flexible circuit substrate for fixing the flexible blood glucose electrochemical test probe on the main control PCB board.

[0023] Preferably, in the aforementioned flexible blood glucose electrochemical test probe, the first insulating adhesive layer, the second insulating adhesive layer and the third insulating adhesive layer are insulating double-sided tapes.

[0024] Furthermore, the aforementioned flexible blood glucose electrochemical testing probe, wherein one end of the first wire is connected to the first annular external connection pad, and the other end is connected to the first electrode pad; one end of the second wire is connected to the second annular external connection pad, and the other end is connected to the second electrode pad; the first insulating layer has a first window opened at a position corresponding to the first electrode pad, and the first window is used to set a conductive component so that the first electrode is conductive with the first electrode pad; the second insulating layer has a second window opened at a position corresponding to the second electrode pad, and the second window is used to set a conductive component so that the second electrode is conductive with the second electrode pad.

[0025] Preferably, in the aforementioned flexible blood glucose electrochemical test probe, one of the first electrode and the second electrode is a working electrode, and the other is a reference electrode.

[0026] Preferably, in the aforementioned flexible blood glucose electrochemical testing probe, the first electrode and the second electrode are metal wire electrodes.

[0027] Preferably, in the aforementioned flexible blood glucose electrochemical test probe, the conductive component is conductive glue, conductive rubber, conductive silver paste or copper nut.

[0028] The present invention also provides a method for assembling the flexible blood glucose electrochemical test probe, comprising the following steps:

[0029] S1: Assemble the first electrode assembly and the second electrode assembly respectively.

[0030] The first electrode assembly process includes:

[0031] S11: adhering the first insulating layer to the first flexible circuit substrate;

[0032] S12: placing a first electrode in the first electrode groove, wherein the first electrode passes through two first windows on the first insulating layer;

[0033] S13: Applying conductive glue in the two first windows on the first insulating layer to connect the first electrode to the two first electrode pads 11 on the first flexible circuit substrate;

[0034] S14: The first insulating adhesive layer is adhered to the first insulating layer, and the first electrode assembly is assembled.

[0035] The second electrode assembly process includes:

[0036] S21: Adhere the second insulating layer to the second flexible circuit substrate;

[0037] S22: placing a second electrode into the second electrode groove, wherein the second electrode passes through two second windows on the second insulating layer;

[0038] S23: Applying conductive glue in the two second windows on the second insulating layer to connect the second electrode to the two second electrode pads on the second flexible circuit substrate;

[0039] S24: Adhere the second insulating adhesive layer to the second insulating layer, and the second electrode assembly is assembled.

[0040] S2: The assembled first electrode assembly and the second electrode assembly are bonded together using a second insulating adhesive layer.

[0041] The above-mentioned method for assembling the flexible blood glucose electrochemical test probe, wherein:

[0042] After step S14, step S15 is also included: after the conductive glue on the first electrode assembly is completely cured, measuring whether the two first annular external connection pads on the first flexible circuit substrate are conductive; if so, the first assembly is qualified and step S2 can be performed; if open, it indicates that there is a problem in the assembly process of the first assembly and the assembly is scrapped.

[0043] After step S24, step S25 is also included: after the conductive glue on the second electrode assembly is completely cured, measuring whether the two second annular external connection pads on the second flexible circuit substrate are conductive; if so, the second assembly is assembled properly and step S2 can be performed; if open, it indicates that there is a problem in the assembly process of the second assembly and the assembly is scrapped.

[0044] The above-mentioned method for assembling the flexible blood glucose electrochemical test probe, wherein:

[0045] The method further includes step S3 between step S24 and step S2 or after step S2: pasting a third insulating adhesive layer on the lower surface of the second flexible circuit substrate.

[0046] Furthermore, the aforementioned method for assembling the flexible blood glucose electrochemical test probe further includes the following steps after step S3:

[0047] S4: Fixing the flexible blood glucose electrochemical test probe on the main control PCB board using a third insulating adhesive layer.

[0048] S5: injecting conductive glue into the pad holes corresponding to at least one of the first annular external connection pads and at least one of the second annular external connection pads, so that the first electrode assembly, the second electrode assembly and the pads on the main control PCB are electrically connected.

[0049] In summary, compared with the prior art, the flexible blood glucose electrochemical test probe of the present invention improves the stability and reliability of the probe while ensuring the comfort of the subject, and has lower requirements for production and assembly processes, which is more conducive to large-scale production and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the appearance of the flexible blood glucose electrochemical test probe of the present invention;

[0051] Figure 2 Schematic diagram of the assembly of the flexible blood glucose electrochemical test probe of the present invention;

[0052] Figure 3 is a front view of the first insulating layer of the present invention;

[0053] Figure 4 is a front view of the second insulating layer of the present invention;

[0054] Figure 5 is a front view of a first flexible circuit substrate of the present invention;

[0055] Figure 6 This is a front view of the second flexible circuit substrate of the present invention. DETAILED DESCRIPTION

[0056] The structure, features and effects of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments:

[0057] like Figures 1 to 6 As shown, the present invention provides a flexible blood glucose electrochemical test probe, which consists of a first electrode assembly 1 and a second electrode assembly 2, wherein:

[0058] The first electrode assembly 1 includes, from bottom to top, the following:

[0059] A first flexible circuit substrate 11, on which a first electrode 111 and at least one first annular external connection pad 112 are provided, wherein the first electrode and the first annular external connection pad are connected via a first wire 113;

[0060] A first insulating layer 12, wherein a first electrode groove 121 is formed in the first insulating layer;

[0061] A first insulating adhesive layer 13;

[0062] The second electrode assembly 2 includes, from bottom to top, the following:

[0063] A second flexible circuit substrate 21 , on which a second electrode 211 and at least one second annular external bonding pad 212 are provided. The second electrode and the second annular external bonding pad are connected via a second wire 213 ;

[0064] A second insulating layer 22 , wherein the second insulating layer has a second electrode groove 221 formed at a position corresponding to the first electrode groove 121 ;

[0065] A second insulating adhesive layer 23;

[0066] The first insulating layer 12, the first insulating adhesive layer 13, the second insulating layer 22 and the second insulating adhesive layer 23 are provided with pad holes (122, 131, 222, 231) at positions corresponding to the first annular external pad 112 and the second annular external pad 212. The first flexible circuit substrate 11 is provided with a pad hole 114 at a position corresponding to the second annular external pad 212. The second flexible circuit substrate 21 is provided with a pad hole 214 at a position corresponding to the first annular external pad 112.

[0067] The first electrode assembly 1 and the second electrode assembly 2 are bonded together via a second insulating adhesive layer 23 .

[0068] Specifically, the first electrode 111 and the second electrode 211 each include a distal insertion portion and a proximal retention portion. The distal insertion portion is used to penetrate the subject's skin, and the proximal retention portion is used to attach to the electrode assembly. This is a conventional design and will not be described in detail here. The first electrode 111 is the working electrode, and the second electrode 211 is the reference electrode. Alternatively, the first electrode is the reference electrode, and the second electrode is the working electrode. Preferably, the first and second electrodes are wire electrodes.

[0069] Since the metal wire electrodes are extremely thin, they can be easily mixed up by the naked eye; and since the electrodes are coated with enzymes, the junction of the two electrodes can easily cause mutual contamination of the enzymes; however, by adopting the above structure, the flexible blood glucose electrochemical test probe is divided into two electrode assemblies, which can realize the two electrodes being processed separately, and then assembled together after being processed into independent components, which can effectively avoid the two electrodes from being mixed up and contaminated with each other; by setting the first electrode groove and the second electrode groove to limit the first electrode and the second electrode, it can be ensured that the two electrodes are parallel at the closest distance; and the multi-layer composite structure of the flexible circuit substrate is adopted, and the total thickness does not exceed 1mm, which ensures the comfort of the person being tested.

[0070] This embodiment can be further implemented through the following structure:

[0071] In the flexible blood glucose electrochemical test probe, the number of the first annular external connection pads 112 is two; the number of the second annular external connection pads 212 is two.

[0072] Specifically, one end of the first wire 113 is connected to the first annular external connection pad 112, and the other end is connected to the first electrode pad 115. One end of the second wire 213 is connected to the second annular external connection pad 212, and the other end is connected to the second electrode pad 215. The first insulating layer 12 has a first window 123 at a position corresponding to the first electrode pad 115, and the second insulating layer 22 has a second window 223 at a position corresponding to the second electrode pad 215. Conductive components (not shown) can be disposed in the first and second windows to ensure electrical continuity between the first electrode 111 and the first electrode pad 115, and between the second electrode 211 and the second electrode pad 215. The conductive components can be conductive glue, conductive rubber, conductive silver paste, or a copper nut; preferably, a two-component conductive glue can be used.

[0073] After the first electrode assembly 1 is assembled, the first electrode 111 is respectively connected to the two first electrode pads 115 on the first flexible circuit substrate 11, and the two first electrode pads 115 are respectively connected to their corresponding first annular external pads 112. Therefore, it is only necessary to detect whether the two first annular external pads are connected to determine whether the first electrode is connected to the first flexible circuit substrate.

[0074] Similarly, after the second electrode assembly 2 is assembled, the second electrode 211 is respectively connected to the two second electrode pads 215 on the second flexible circuit substrate 21, and the two second electrode pads 215 are respectively connected to their corresponding second annular external pads 212. Therefore, it is only necessary to detect whether the two second annular external pads are connected to determine whether the second electrode is connected to the second flexible circuit substrate.

[0075] Therefore, by adopting the above structure, the first electrode assembly and the second electrode assembly can be tested for conductivity separately after assembly, avoiding electrode disconnection and poor contact, improving the yield, thereby improving the stability and reliability of the probe and effectively reducing production costs.

[0076] Preferably, the first annular external connection pad 112 and the second annular external connection pad 212 are disposed on different sides of the first flexible circuit substrate 11 and the second flexible circuit substrate 21, so as to avoid short circuits caused by close distances between conductor areas.

[0077] In the aforementioned flexible blood glucose electrochemical test probe, conductive components (not shown) are disposed in the pad holes corresponding to at least one first annular external connection pad 112 and at least one second annular external connection pad 212, ensuring electrical continuity between the first electrode assembly 1 and the second electrode assembly 2 and pads (not shown) on the main control PCB (not shown). Preferably, conductive components are disposed in the pad holes corresponding to both first annular external connection pads and both second annular external connection pads, ensuring electrical continuity between the two first annular external connection pads and the two second annular external connection pads, respectively, and ensuring electrical continuity between the two first annular external connection pads and the two second annular external connection pads and their corresponding pads on the main control PCB. This prevents disconnection due to poor contact or vibration. The conductive components may be conductive glue, conductive rubber, conductive silver paste, or copper nuts; preferably, a two-component conductive glue is used.

[0078] Preferably, the flexible electrochemical blood glucose test probe further comprises a third insulating adhesive layer 24 disposed on the lower surface of the second flexible circuit substrate 21 for securing the flexible electrochemical blood glucose test probe to the main control PCB. The third insulating adhesive layer 23 includes solder pad holes 241 at locations corresponding to the first and second annular external solder pads 112 and 212.

[0079] Preferably, in the flexible blood glucose electrochemical test probe, the first insulating adhesive layer 13 , the second insulating adhesive layer 23 and the third insulating adhesive layer 24 are insulating double-sided tapes.

[0080] Taking the example of providing two first annular external connection pads 112 and two second annular external connection pads 212, the assembly process of the flexible blood glucose electrochemical test probe of the present invention includes the following steps:

[0081] S1: Assemble the first electrode assembly 1 and the first electrode assembly 2 respectively.

[0082] The assembly process of the first electrode assembly 1 includes:

[0083] S11: Adhere the first insulating layer 12 to the first flexible circuit substrate 11;

[0084] S12: placing the first electrode 111 into the first electrode groove 121 , wherein the first electrode passes through the two first windows 123 on the first insulating layer 12 ;

[0085] S13: Apply conductive glue in the two first windows on the first insulating layer to connect the first electrode 111 to the two first electrode pads 115 on the first flexible circuit substrate 11;

[0086] S14: The first insulating adhesive layer 13 is adhered to the first insulating layer 12, and the first electrode assembly is assembled.

[0087] In this embodiment, S15 is also included: after the conductive glue on the first electrode assembly is completely cured, the two first annular external connection pads 112 on the first flexible circuit substrate are measured to see whether they are conductive. If so, the first assembly is assembled properly and step S2 can be performed. If it is open, it means that there is a problem in the assembly process of the first assembly and the assembly is scrapped.

[0088] The second electrode assembly process includes:

[0089] S21: Adhere the second insulating layer 22 to the second flexible circuit substrate 21;

[0090] S22: placing the second electrode 211 into the second electrode groove 221 , wherein the second electrode passes through the two second windows 223 on the second insulating layer 22 ;

[0091] S23: Apply conductive glue in the two second windows on the second insulating layer to connect the second electrode 211 to the two second electrode pads 215 on the second flexible circuit substrate 21;

[0092] S24: The second insulating adhesive layer 23 is adhered to the second insulating layer 22, and the second electrode assembly is assembled.

[0093] In this embodiment, S25 is also included: after the conductive glue on the second electrode assembly is completely cured, the two second annular external connection pads 212 on the second flexible circuit substrate are measured to see whether they are conductive. If they are conductive, the second assembly is qualified and step S2 can be performed. If they are open, it means that there is a problem in the assembly process of the second assembly and the assembly is scrapped.

[0094] S2: The assembled first electrode assembly 1 and the second electrode assembly 2 are bonded together using a second insulating adhesive layer 23 .

[0095] In this embodiment, step S3 is provided between step S24 and step S2 or after step S2 : attaching a third insulating adhesive layer 24 to the lower surface of the second flexible circuit substrate 21 .

[0096] Furthermore, the method further includes the following steps:

[0097] S4: Fix the flexible blood glucose electrochemical test probe on a main control PCB (not shown) using a third insulating adhesive layer 24 .

[0098] S5: injecting conductive glue into the pad holes corresponding to at least one first annular external connection pad 112 and at least one second annular external connection pad 212, so that the first electrode assembly, the second electrode assembly and the pads (not shown) on the main control PCB are electrically connected.

[0099] In summary, compared with the prior art, the flexible blood glucose electrochemical test probe of the present invention improves the stability and reliability of the probe while ensuring the comfort of the subject, and has lower requirements for production and assembly processes, which is more conducive to large-scale production and processing.

[0100] The above are only preferred embodiments of the present invention. Any simple modifications and equivalent transformations of the above embodiments based on the technical solutions of the present invention fall within the scope of protection of the present invention.

Claims

1. A flexible blood glucose electrochemical test probe, characterized in that: It consists of a first electrode assembly and a second electrode assembly, The first electrode assembly includes, from bottom to top: a first flexible circuit substrate, wherein a first electrode and at least one first annular external bonding pad are provided on the first flexible circuit substrate, and the first electrode and the first annular external bonding pad are connected via a first wire; a first insulating layer, wherein a first electrode groove is formed in the first insulating layer; a first insulating adhesive layer; The second electrode assembly includes, from bottom to top: a second flexible circuit substrate, wherein a second electrode and at least one second annular external bonding pad are provided on the second flexible circuit substrate, and the second electrode and the second annular external bonding pad are connected via a second wire; a second insulating layer, wherein the second insulating layer is provided with a second electrode groove at a position corresponding to the first electrode groove; a second insulating adhesive layer; The first insulating layer, the first insulating adhesive layer, the second insulating layer, and the second insulating adhesive layer are provided with pad holes at positions corresponding to the first annular external connection pad and the second annular external connection pad; the first flexible circuit substrate is provided with a pad hole at a position corresponding to the second annular external connection pad; and the second flexible circuit substrate is provided with a pad hole at a position corresponding to the first annular external connection pad; The first electrode assembly and the second electrode assembly are assembled together by pasting them together through the second insulating adhesive layer; wherein, the first electrode assembly and the second electrode assembly are separate components before being pasted together by the second insulating adhesive layer; wherein The number of the first annular external connection pads is two; the number of the second annular external connection pads is two; the first annular external connection pad and the second annular external connection pad are arranged on different sides of the first flexible circuit substrate and the second flexible circuit substrate.

2. The flexible blood glucose electrochemical test probe according to claim 1, characterized in that: Conductive components are provided in the pad holes corresponding to at least one of the first annular external pads and at least one of the second annular external pads, so that the first electrode assembly, the second electrode assembly and the pads on the main control PCB are electrically connected.

3. The flexible blood glucose electrochemical test probe according to claim 1, characterized in that: A third insulating adhesive layer is further provided on the lower end surface of the second flexible circuit substrate, which is used to fix the flexible blood glucose electrochemical test probe on the main control PCB board.

4. The flexible blood glucose electrochemical test probe according to claim 3, characterized in that: The first insulating adhesive layer, the second insulating adhesive layer and the third insulating adhesive layer are insulating double-sided tapes.

5. The flexible blood glucose electrochemical test probe according to claim 1, characterized in that: One end of the first wire is connected to the first annular external connection pad, and the other end is connected to the first electrode pad; one end of the second wire is connected to the second annular external connection pad, and the other end is connected to the second electrode pad; the first insulating layer has a first window at a position corresponding to the first electrode pad, and the first window is used to set a conductive component so that the first electrode is conductive with the first electrode pad; the second insulating layer has a second window at a position corresponding to the second electrode pad, and the second window is used to set a conductive component so that the second electrode is conductive with the second electrode pad.

6. The flexible blood glucose electrochemical test probe according to claim 1, characterized in that: One of the first electrode and the second electrode is a working electrode, and the other is a reference electrode.

7. The flexible blood glucose electrochemical test probe according to claim 1, characterized in that: The first electrode and the second electrode are metal wire electrodes.

8. The flexible blood glucose electrochemical test probe according to claim 2 or 5, characterized in that: The conductive component is conductive glue, conductive rubber, conductive silver paste or copper nut.

9. A method for assembling a flexible electrochemical blood glucose test probe, for assembling the flexible electrochemical blood glucose test probe according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Assembling the first electrode assembly and the second electrode assembly respectively; The first electrode assembly process includes: S11: adhering the first insulating layer to the first flexible circuit substrate; S12: placing the first electrode in the first electrode groove, wherein the first electrode passes through the two first windows on the first insulating layer; S13: applying conductive glue in the two first windows on the first insulating layer to connect the first electrode to the two first electrode pads on the first flexible circuit substrate; S14: Adhere the first insulating adhesive layer to the first insulating layer, and the first electrode assembly is assembled; The second electrode assembly process includes: S21: Adhere the second insulating layer to the second flexible circuit substrate; S22: placing the second electrode into the second electrode groove, wherein the second electrode passes through the two second windows on the second insulating layer; S23: applying conductive glue in the two second windows on the second insulating layer to connect the second electrode to the two second electrode pads on the second flexible circuit substrate; S24: Adhere the second insulating adhesive layer to the second insulating layer, and the second electrode assembly is assembled; S2: The assembled first electrode assembly and the second electrode assembly are bonded together using the second insulating adhesive layer.

10. The assembly method of the flexible blood glucose electrochemical test probe according to claim 9, characterized in that: After step S14, the method further includes step S15: after the conductive adhesive on the first electrode assembly is completely cured, measuring whether the two first annular external connection pads on the first flexible circuit substrate are conductive; if so, the first electrode assembly is assembled properly and step S2 can be performed; if not, it indicates that there is a problem in the assembly process of the first electrode assembly and the assembly is scrapped; After step S24, step S25 is also included: after the conductive glue on the second electrode assembly is completely cured, measure whether the two second annular external connection pads on the second flexible circuit substrate are conductive. If they are conductive, the second electrode assembly is qualified and step S2 can be performed. If they are open, it means that there is a problem in the assembly process of the second electrode assembly and the assembly is scrapped.

11. The method for assembling the flexible blood glucose electrochemical test probe according to claim 10, characterized in that: Between step S24 and step S2 or after step S2, there is further step S3: pasting a third insulating adhesive layer on the lower surface of the second flexible circuit substrate.

12. The method for assembling a flexible electrochemical blood glucose test probe according to claim 11, characterized in that: After step S3, the following steps are also included: S4: fixing the flexible blood glucose electrochemical test probe on the main control PCB board using the third insulating adhesive layer; S5: injecting conductive glue into the pad holes corresponding to at least one of the first annular external connection pads and at least one of the second annular external connection pads, so that the first electrode assembly, the second electrode assembly and the pads on the main control PCB are electrically connected.

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