CN220399322U - CGM electrode detection tool - Google Patents

Abstract

The utility model belongs to the technical field of detection of CGM electrodes, and particularly relates to a CGM electrode detection tool, which comprises a liquid supply assembly and a detection plate for driving a test liquid in a reagent bottle to flow through the test assembly; the testing component is used for driving the electrode to be tested to be immersed in flowing testing liquid, and the circuit board is used for collecting the reaction current of the electrode to be tested and transmitting the reaction current to the data processing component; the temperature feedback control assembly comprises a first temperature sensor and a third temperature sensor, and detects the temperature of the test liquid in real time; the third temperature sensor is arranged on the heating substrate and connected with the temperature controller, and the temperature controller controls the heating substrate to heat the test solution in the solution tank to reach the set temperature. According to the CGM electrode detection tool provided by the utility model, the corresponding rotary valve and the solution tank are arranged to form the reflux channel, so that the detection liquid is always in a flowing state in the process of detecting the CGM electrode, and is more attached to the tissue liquid environment of a human body, and the accuracy of the detection result is improved.

Description

CGM electrode detection tool

Technical Field

The utility model belongs to the technical field of detection of CGM electrodes, and particularly relates to a CGM electrode detection tool.

Background

Currently, there are two main ways of self blood glucose monitoring for diabetics, the traditional blood test (Blood Glucose Monitoring, BGM) and continuous blood glucose monitoring (Continuous Glucose Monitoring, CGM). BGM mainly uses traditional glucometer, uses most mature and popular, but has more pain points, and continuous blood sugar monitoring can detect blood sugar level of patients in real time, has the ability of finding hidden hyperglycemia and hypoglycemia which are not easy to detect by traditional detection methods, and becomes a new trend of blood sugar monitoring.

The continuous blood glucose monitor includes sensor, also called CGM electrode, and the CGM electrode is implanted into the skin to monitor blood glucose, and the subcutaneous CGM electrode contains glucose oxidase to react chemically with the glucose in subcutaneous tissue to produce electric signal, which is transmitted to analysis software via emitter and converted into blood glucose value via data processing. Because the CGM electrode needs to be put into a human body, the service period is as long as 7-14 days, the requirements of sensitivity, repetition precision and the like of the CGM electrode are higher, and the performance detection of the CGM electrode is necessary before formal use.

In the prior art, when testing CGM electrodes, test solution in a beaker or other vessels is formed by mixing PBS buffer solution (phosphate buffer salt solution) and glucose solution with a certain concentration, a rotor is required to be placed in the vessel in the test process, the vessel is placed on a stirring table, the solution in the vessel is uniformly stirred for testing through rotation of the rotor, and the rotor cannot stop rotating in the test process because of rotation of the rotor, the depth of the traditional solution vessel is higher, the occupied space is larger, the required test solution amount is more, and the cost is higher.

Meanwhile, the detection solution is stored in a non-flowing vessel, and the fixed volume of the detection solution has certain volatilization loss in the long-time detection process, and particularly the volatilization of the solution is more serious under the heating condition, so that the height of the detection solution can be reduced, the test depth of the electrode to be detected can be changed, and the detection accuracy is reduced. Along with the extension of the test time, the amount of glucose required to react with enzyme is gradually reduced, and the accuracy of the detection data has a certain deviation.

In addition, in the actual working environment of the CGM electrode, the tissue fluid of the human body continuously flows, and at present, most of detection tools of the CGM electrode usually have a static state of the test fluid, and the test fluid is inconsistent with the tissue fluid environment flowing in the human body, so that the detection environment is deviated from the actual working environment, and the detection result of the electrode is distorted.

Disclosure of Invention

In order to solve the technical problems in the prior art, the utility model provides the CGM electrode detection tool which can effectively simulate the tissue fluid environment flowing in a human body and improve the detection accuracy.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

CGM electrode detects frock includes:

the liquid supply assembly drives the test liquid in the reagent bottle to flow through the detection plate of the test mechanism through the conveying pipeline by the first peristaltic pump;

the circuit board is connected with the electrode to be tested, collects the reaction current of the electrode to be tested and transmits the reaction current to the data processing component;

the temperature feedback control assembly comprises a third temperature sensor and first temperature sensors corresponding to the number of the electrodes to be measured, wherein the first temperature sensors are arranged on one side of the electrodes to be measured and move to flowing test liquid along with the electrodes to be measured, the first temperature sensors detect the temperature of the test liquid in real time, the third temperature sensors are arranged on the heating substrate, the signal output ends of the third temperature sensors are connected with a temperature controller, and the temperature controller is connected with and controls the test liquid in the heating substrate heating solution tank to reach a set temperature.

Further, the liquid supply assembly comprises a reagent bottle, a liquid inlet rotary valve and a liquid inlet peristaltic pump, wherein a liquid outlet pipe and a liquid inlet pipe are inserted into the reagent bottle, the liquid outlet pipe is connected with a liquid inlet of the liquid inlet rotary valve, a liquid outlet of the liquid inlet rotary valve is connected with a conveying pipeline, and the conveying pipeline penetrates through the liquid inlet peristaltic pump to be connected with a liquid inlet end of the detection plate.

Further, the liquid supply assembly further comprises a liquid outlet rotary valve and a liquid outlet peristaltic pump, the liquid outlet end of the detection plate penetrates through the liquid outlet peristaltic pump through a conveying pipeline to be connected with a liquid inlet of the liquid outlet rotary valve, and a liquid outlet of the liquid outlet rotary valve is connected with a reagent bottle.

Further, the number of the reagent bottles is not less than two, and the reagent bottles are arranged in the heating device.

Further, the test assembly comprises a detection plate, a driving unit and a mounting unit; the electrode to be measured is fixed on the mounting unit, the driving unit comprises a Y-axis moving part and a Z-axis moving part, the Y-axis moving part drives the circuit board to move towards one side of the electrode to be measured and contact with the electrode to be measured to realize signal conduction, and the Z-axis moving part drives the mounting unit, the electrode to be measured and the Y-axis moving part to move downwards together so that the electrode to be measured is immersed in flowing test liquid.

Further, the Y-axis moving part comprises a transverse plate, and the transverse plate is fixed on the Y-axis base plate; the Y-axis motor is arranged on the transverse plate, vertical plates are arranged on two sides of the transverse plate, guide rails are arranged on the upper surfaces of the vertical plates, the upper parts of the guide rails are connected with an upper supporting plate in a sliding mode through sliding blocks, and the Y-axis motor drives the upper supporting plate to horizontally reciprocate through a screw rod mechanism; the upper supporting plate is connected with the bottom plate through vertical plates arranged at two ends, the bottom plate is fixedly connected with a compressing driving block, and a circuit board is arranged on the side wall of the compressing driving block opposite to the mounting unit. Further, an elastic contact point is arranged on the circuit board, and a contact point which is in contact with and conducted with a signal point of the circuit board is arranged on the electrode to be tested.

Further, the electrode to be measured is the electrode slice that connects gradually through the substrate, the electrode slice includes test portion and substrate, test portion protrusion substrate sets up, the fixed part is cut out at the electrode slice both ends, run through on the fixed part and set up the fixed orifices, the electrode slice passes through the fixed orifices block on the installation cell.

Further, the electrode to be measured is a single electrode cut from the base material, and the electrode is clamped on the mounting unit through the fixing hole which is formed in a penetrating manner.

Further, the mounting unit comprises a fixing plate and a connecting plate, a sliding rail is arranged on the rear end face of the fixing plate, and a fixing groove for clamping an electrode to be tested is formed in the front end face of the fixing plate; the fixed slot is provided with a fixed bulge corresponding to the electrode to be detected, the sliding rail is in sliding connection with the connecting plate through a sliding groove, the side wall of the fixed plate is also provided with a limiting rod in a protruding mode, the connecting plate is provided with a limiting slot corresponding to the limiting rod, the limiting rod horizontally penetrates through the limiting slot of the connecting plate, and the connecting plate is fixed on the Y-axis moving part.

Further, the detection plate is fixed through a bracket, and a heating substrate is arranged between the lower end face of the detection plate and the bracket.

Further, the upper end face of the detection plate is concavely provided with a plurality of solution grooves with circular arc-shaped cross sections, one end of each solution groove is communicated with a liquid inlet end, the other end of each solution groove is communicated with a liquid outlet end, at least two mixing plates are arranged in each solution groove close to the liquid inlet end, a plurality of through holes are horizontally formed in each mixing plate in a penetrating mode, and the through holes between every two adjacent mixing plates are staggered.

Further, a cover plate is arranged above the detection plate, a first opening and a second opening corresponding to the solution tank are formed in the cover plate, and the first opening and the second opening are respectively used for penetrating through the electrode to be detected and the temperature sensor.

Compared with the prior art, the utility model has the following beneficial effects:

according to the CGM electrode detection tool provided by the utility model, the reflux channel is formed through the liquid supply component, so that the test liquid is always in a flowing state in the process of detecting the CGM electrode, the reduction of the volatilization volume of the test liquid in the test process can be avoided, the stable test depth of the electrode to be detected is ensured, meanwhile, the test liquid continuously flows for updating, the glucose content in the test liquid is relatively stable, and the detection accuracy is improved.

According to the CGM electrode detection tool provided by the utility model, the liquid supply assembly and the temperature feedback control assembly are matched, so that the test liquid can simulate the flow of the tissue liquid and approach the temperature of the tissue liquid, the actual working environment of the CGM electrode can be more attached, and the accuracy of the CGM electrode detection can be improved.

According to the utility model, the mixing plate is arranged in the solution tank, so that the concentration of the detection liquid in the liquid is more uniform through the mixing plate, and the detection error is reduced.

According to the utility model, a plurality of solution tanks are arranged on one detection plate, so that detection of a plurality of electrodes can be performed at one time, and the detection efficiency is improved; meanwhile, through the design of the inlet and the outlet of the solution tank, the concentration and the capacity in each solution tank are the same, and the detection error is further reduced.

According to the utility model, the corresponding Y-axis moving part is arranged, so that the PCB circuit board and the electrode can be separated, the electrode can be conveniently replaced, the equipment utilization rate and the detection efficiency are improved, and in addition, the influence of oxidase caused by early electrifying of the electrode is avoided, and the detection result is further influenced.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model, in which a conveying pipe for detecting the flow of liquid is not shown.

Fig. 2 is a partial enlarged view of fig. 1 at a.

Fig. 3 is a schematic view of the mounting structure of the detection plate.

Fig. 4 is a schematic structural view of the detection plate.

FIG. 5 is a schematic view of another angle of the detecting plate.

FIG. 6 is a schematic diagram of the structure of the test assembly.

Fig. 7 is a right side view of the test assembly.

Fig. 8 is a schematic structural view of the Y-axis moving member.

Fig. 9 is a schematic diagram of a relative position structure of the circuit board and the electrode to be tested.

Fig. 10 is a schematic view of the mounting structure of the electrode to be tested.

Fig. 11 is a schematic structural diagram of a plurality of electrodes to be tested.

Fig. 12 is a schematic diagram of the structure of a single electrode under test.

Reference numerals illustrate:

1-a base, 2-a heating device, 3-Z axis moving parts, 301-an electrode to be tested, 302-Z axis motors,

4-detecting plate, 401-solution tank, 402-liquid inlet end, 403-liquid outlet end,

5-reagent bottles, 6-liquid inlet rotary valves, 601-first liquid inlets, 602-first liquid outlets, 7-liquid outlet rotary valves, 701-second liquid outlets, 702-second liquid inlets, 8-liquid inlet peristaltic pumps, 9-liquid outlet peristaltic pumps, 10-first mixing plates, 11-second mixing plates, 12-cover plates, 13-brackets, 14-heating substrates,

15-Y axis moving parts, 1501-cross plates, 1502-Y axis motors, 1503-risers, 1504-guideways, 1505-sliders, 1506-upper support plates, 1507-base plates,

the device comprises a 16-Y-axis base plate, a 17-connecting plate, a 18-fixing plate, a 19-compression driving block, a 20-circuit board, a 21-sliding rail, a 22-sliding groove, a 23-first temperature sensor, a 24-second temperature sensor, a 25-data processing assembly and a 26-sensor bracket.

Detailed Description

The technical solutions of the present utility model will be clearly described below with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present utility model, and all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of protection of the present utility model.

It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments should not be construed as limiting the scope of the present utility model unless it is specifically stated otherwise. Furthermore, it should be understood that the dimensions of the various elements shown in the figures are not necessarily drawn to actual scale, e.g., the thickness, width, length, or distance of some elements may be exaggerated relative to other structures for ease of description.

The following description of the exemplary embodiment(s) is merely illustrative, and is in no way intended to limit the utility model, its application, or uses. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail herein, but where applicable, should be considered part of the present specification.

As shown in FIG. 1, the utility model provides a CGM electrode detection tool, which comprises a liquid supply assembly, a testing assembly and a temperature feedback control assembly.

The liquid supply assembly drives the test liquid in the reagent bottle 5 to flow through the detection plate 4 of the test assembly through the conveying pipeline by the liquid inlet peristaltic pump 8.

As shown in fig. 1 and 2, the liquid supply assembly includes a reagent bottle 5, a liquid inlet rotary valve 6 and a liquid inlet peristaltic pump 8, the liquid inlet rotary valve 6 has a first liquid inlet 601 and a first liquid outlet 602, a liquid outlet pipe and a liquid inlet pipe are inserted on the reagent bottle 5, the liquid outlet pipe is connected with the first liquid inlet 601 of the liquid inlet rotary valve 6, the first liquid outlet 602 of the liquid inlet rotary valve 6 is connected with a conveying pipeline, and the conveying pipeline passes through the liquid inlet peristaltic pump 8 and is connected with the liquid inlet end 402 of the detection plate 4.

As shown in fig. 1 and 2, the liquid supply assembly further includes a liquid outlet rotary valve 7 and a liquid outlet peristaltic pump 9, the liquid outlet rotary valve 7 has a second liquid inlet 702 and a second liquid outlet 701, the liquid outlet end 403 of the detection plate 4 passes through the liquid outlet peristaltic pump 9 through a conveying pipeline and is connected with the second liquid inlet 702 of the liquid outlet rotary valve 7, and the second liquid outlet 701 of the liquid outlet rotary valve 7 is connected with a liquid inlet pipe of the reagent bottle 5.

In this embodiment, the number of the reagent bottles 5 is not less than two, and the reagent bottles 5 are all arranged in the heating device 2 for preheating, the heating device 2 can adopt a water bath, and test liquids with different concentrations are contained in different reagent bottles 5 for detecting parameter indexes in different environments, and each time one reagent bottle 5 is detected, the first liquid inlet 601 is corresponding to one reagent bottle 5; during detection, according to the reagent bottle 5, the reagent bottle is switched to the corresponding first liquid inlet 601, the test liquid enters the liquid inlet rotary valve 6 from the first liquid inlet 601, then flows out from the first liquid outlet 602, and the first liquid outlet 602 is a common liquid outlet. The test liquid flowing out from the first liquid outlet 602 flows into the solution tank 401 through a pipeline for detection. The test liquid flows into the second liquid inlet 702 from the solution tank 401, the second liquid inlet 702 is a common liquid inlet, the test liquid enters the liquid outlet rotary valve 7 from the second liquid inlet 702, flows out from the corresponding second liquid outlet 701 and flows back into the reagent bottle 5, so that the test liquid is in a flowing state continuously in the detection process, the test liquid is more close to the tissue liquid environment in the human body, and the accuracy of the detection result is improved.

As shown in fig. 1, the test assembly drives the electrode to be tested to move downwards to be immersed in the flowing test liquid, and the circuit board is connected with the electrode to be tested and collects the reaction current of the electrode to be tested and transmits the reaction current to the data processing assembly.

As shown in fig. 6, the test assembly includes a detection plate 4, a driving unit and a mounting unit, the electrode 301 to be tested is fixed on a fixing plate 18 of the mounting unit, the driving unit includes a Y-axis moving part 15 and a Z-axis moving part 3, the Y-axis moving part 15 drives a circuit board 20 to move to the side of the electrode 301 to be tested and contact to realize signal conduction, and the Z-axis moving part 3 drives the mounting unit, the electrode 301 to be tested and the Y-axis moving part 15 to move downward together to immerse the electrode 301 to be tested in the flowing test liquid.

As shown in fig. 11, the electrodes 301 to be tested are electrode plates sequentially connected through a substrate, each electrode on the electrode plate is provided with a contact point contacting with a signal point of the circuit board, a test part of the electrode plate protrudes out of the substrate, two ends of the electrode plate are cut out to form fixing parts (two end structures shown in fig. 11), fixing holes are formed in the fixing parts in a penetrating manner, the electrode plate is clamped with the fixing plate 18 through the fixing holes, and the fixing plate 18 is detachably connected to the mounting unit.

As shown in fig. 12, the electrode 301 to be measured may also be a single electrode cut from a substrate, the electrode is clamped on the fixing plate 18 through a fixing hole formed therethrough, and the fixing plate 18 is detachably connected to the mounting unit.

As shown in fig. 9 and 10, the mounting unit includes a fixing plate 18 and a connecting plate 17, the rear end surface of the fixing plate 18 is provided with a sliding rail 21, the front end surface is provided with a fixing groove for clamping the electrode 301 to be tested, the sliding rail 21 is slidably connected with the connecting plate 17 through a sliding groove 22, and guiding and limiting effects are provided for mounting the fixing plate 18. And the side wall of the fixed plate 18 is also provided with a limiting rod in a protruding way, the limiting rod horizontally penetrates through the limiting slot hole of the connecting plate 17, and the connecting plate 17 is fixed on the Y-axis moving part 15. The fixing groove is provided with a fixing protrusion corresponding to the position of the electrode 301 to be measured, and in the installation process, the fixing hole of the electrode 301 to be measured is aligned with and clamped with the positioning protrusion on the fixing plate 18, so that the electrode 301 to be measured is fixed in the fixing groove on the front end surface of the fixing plate 18. Then, the sliding rail 21 of the fixed plate 18 is opened from one side of the sliding groove 22 of the connecting plate 17 and slides into the sliding groove 22, and the limiting rod on the side wall of the fixed plate 18 firstly passes through the limiting slot hole on one side of the sliding groove 22 to limit the fixed plate 18; until the assembly is completed, the fixing plate 18 is detachably arranged on the connecting plate 17, and the fixing plate 18 is detachably connected with the connecting plate 17, so that replacement of the electrode to be tested is facilitated, and the operation efficiency is improved.

As shown in fig. 6, 7 and 8, the Y-axis moving member 15 includes a cross plate 1501, and the cross plate 1501 is fixed to the Y-axis base 16; the Y-axis motor 1502 is arranged on the transverse plate 1501, the vertical plates 1503 are arranged on two sides of the transverse plate 1501, the guide rails 1504 are arranged on the upper surfaces of the vertical plates 1503, the upper parts of the guide rails 1504 are connected with the upper support plate 1506 in a sliding mode through the sliding blocks 1505, and the Y-axis motor 1502 drives the upper support plate 1506 to horizontally reciprocate through a screw mechanism. The upper support plate 1506 is connected with the bottom plate 1507 through vertical plates arranged at two ends, the fixed connection on the bottom plate 1507 compresses tightly the drive block 19, the side wall opposite to the installation unit of the drive block 19 is provided with the circuit board 20, the drive block 19 drives the circuit board 20 to be close to or far away from the electrode 301 to be tested, and when the circuit board 20 compresses tightly the electrode 301 to be tested, the electrode 301 to be tested is conducted, and signal acquisition and transmission can be achieved.

The Y-axis moving part 15 realizes signal connection of the electrode 301 to be tested, first, the Y-axis motor 1502 drives the upper support plate 1506 to move towards one side of the electrode 301 to be tested through the screw-nut mechanism, the pressing driving block 19 moves along with the bottom plate 1507, the circuit board 20 on the pressing driving block 19 approaches to the electrode 301 to be tested in the moving process, the elastic contact points on the circuit board 20 are in contact connection with the signal points on the electrode 301 to be tested, each electrode 301 to be tested corresponds to a group of elastic contact points and an independent signal transmission line, and the current signal on the electrode 301 to be tested in the testing process is transmitted to the data processing assembly 25 through the signal transmission line.

The Z-axis motion assembly 3 comprises a Z-axis motor 302, and the Z-axis motor 302 drives the electrode 301 to be tested to be inserted into the solution tank 401; the electrode 301 to be tested realizes up-and-down reciprocating motion through the Z-axis moving part 3, the electrode 301 to be tested can be inserted into the detection liquid for detection when moving downwards, and the electrode 301 to be tested can be far away from the detection liquid when moving upwards. The Z-axis motor 302 drives the Y-axis substrate 16 to reciprocate up and down through a screw mechanism; the Y-axis baseplate 16 is provided with a Y-axis moving part 15 and a connecting plate 17, one side of the connecting plate 17 is provided with a compression driving block 19, and the Y-axis moving part 15 drives the compression driving block 19 to horizontally reciprocate.

As shown in fig. 4 and 5, a plurality of solution tanks 401 with circular arc-shaped cross sections are concavely arranged on the upper end surface of the detection plate 4, a plurality of solution tanks 401 are arranged in an equidistant array, and electrodes 301 to be detected are arranged in one-to-one correspondence with the solution tanks 401. The resistance of the flowing of the detection liquid is reduced by the solution tank with the circular arc structure, so that the flowing of the detection liquid is more stable.

One end of the solution tank 401 is communicated with the liquid inlet conveying pipeline through a liquid inlet end 402, the other end is communicated with the liquid outlet conveying pipeline through a liquid outlet end 403, at least two mixing plates are vertically arranged in the solution tank 401 near the liquid inlet end 402, a plurality of through holes are horizontally formed in the mixing plates, and the through holes between two adjacent mixing plates are staggered. In this embodiment, the detection liquid flows through the first mixing plate 10 first, then flows through the second mixing plate 11, and the concentration in the detection liquid is more uniform under the action of the two mixing plates, and the electrode 301 to be detected is used for detecting the mixed detection liquid, so as to improve the detection accuracy.

In the prior art, the CGM electrode needs to continuously detect for 7-14 days in the actual working process, but in the prior art, substances in the solution are settled along with the test, so that the upper layer concentration and the lower layer concentration of the test solution are inconsistent, and the CGM electrode can only test the concentration of the upper layer solution in the test groove, thereby causing the deviation of the test result. Therefore, in this embodiment, at least two mixing plates are disposed in the solution tank 401, and through holes on the mixing plates are disposed in a staggered manner, so as to avoid sedimentation of substances when the detection solution flows in the solution tank, and realize uniform mixing of substances in the detection solution.

The apron 12 is set up to pick-up plate 4 top, and apron 12 covers all solution grooves 401 to set up the first opening that supplies electrode 301 to be measured to pass and the second opening that supplies temperature sensor to pass on the apron 12, apron 12 can reduce the volatilization of detection liquid effectively, and guarantees the cleanliness factor of detection solution.

As shown in fig. 1, the temperature feedback control assembly includes first temperature sensors 23 corresponding to the number of the electrodes to be measured, the first temperature sensors 23 are disposed on one side of the electrodes to be measured 301 and move into the flowing test liquid along with the electrodes to be measured, the first temperature sensors 23 detect the temperature of the test liquid in real time, the third temperature sensors are disposed on the heating substrate 14, the signal output ends of the third temperature sensors are connected with a temperature controller, and the temperature controller is connected with and controls the heating substrate to heat the test liquid in the solution tank to reach a set temperature.

As shown in fig. 3, the detection plate 4 is fixed by the bracket 13, and a heating substrate 14 is provided between the lower end surface of the detection plate 4 and the bracket 13, and the detection liquid can be heated by the heating substrate 14, so that the detection liquid environments at different temperatures can be simulated. The temperature feedback control assembly further comprises a data processing assembly 25 and a second temperature sensor 24 arranged in the heating device 2, wherein the data processing assembly 25 is electrically connected with the first temperature sensor 23, the second temperature sensor 24, the third temperature sensor and the circuit board 20.

In the detection process, the water bath temperature in the heating device 2 is detected by the second temperature sensor 24, so that the detection liquid reaches the set preheating temperature, and when the water bath temperature detected by the second temperature sensor 24 is lower than the set preheating temperature, the temperature setting of the heating device is increased, and the water in the heating device 2 is heated until the water bath temperature acquired by the second temperature sensor 24 reaches the set preheating temperature. Along with the flowing of the detection liquid, the detection liquid flows into the solution tank 401, the temperature of the detection liquid is collected through the first temperature sensor 23, the consistency degree of the temperatures in the solution tanks is fed back, and then the temperature of the detection liquid is controlled better. The third temperature sensor detects the temperature of the heating substrate 14 in real time and feeds back the temperature to the temperature controller, and when the temperature of the heating substrate does not reach the set temperature, the temperature controller controls the heating substrate 14 to start heating.

The CGM electrode detection tool further comprises a sensor support 26, a plurality of sensor fixing plates are arranged on the sensor support 26, and a plurality of electrodes to be detected or electrodes which are detected are arranged on the sensor fixing plates.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the scope of the technical solution of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims (13)

1. A CGM electrode detection tool is characterized by comprising,

the liquid supply assembly drives the test liquid in the reagent bottle to flow through the detection plate of the test assembly through the conveying pipeline by the first peristaltic pump;

the testing component is used for driving the electrode to be tested to be immersed in the testing liquid flowing in the detection plate, and the circuit board is connected with the electrode to be tested and used for collecting the reaction current of the electrode to be tested and transmitting the reaction current to the data processing component;

the temperature feedback control assembly comprises a third temperature sensor and first temperature sensors corresponding to the number of the electrodes to be detected, wherein the first temperature sensors move to flowing test liquid along with the electrodes to be detected, the first temperature sensors detect the temperature of the test liquid in real time, the third temperature sensors are arranged on the heating substrate, the signal output ends of the third temperature sensors are connected with a temperature controller, and the temperature controller is connected with and controls the test liquid in the heating substrate heating solution tank to reach a set temperature.

2. The CGM electrode detection tool according to claim 1, wherein the liquid supply assembly comprises a reagent bottle, a liquid inlet rotary valve and a liquid inlet peristaltic pump, wherein a liquid outlet pipe and a liquid inlet pipe are inserted into the reagent bottle, the liquid outlet pipe is connected with a liquid inlet of the liquid inlet rotary valve, a liquid outlet of the liquid inlet rotary valve is connected with a conveying pipeline, and the conveying pipeline penetrates through the liquid inlet peristaltic pump to be connected with a liquid inlet end of the detection plate.

3. The CGM electrode detection tool according to claim 2, wherein the liquid supply assembly further comprises a liquid outlet rotary valve and a liquid outlet peristaltic pump, the liquid outlet end of the detection plate passes through the liquid outlet peristaltic pump through a conveying pipeline and is connected with the liquid inlet of the liquid outlet rotary valve, and the liquid outlet of the liquid outlet rotary valve is connected with the reagent bottle.

4. The CGM electrode detection tool according to claim 2 or 3, wherein the number of the reagent bottles is not less than two, and the reagent bottles are provided in the heating device.

5. The CGM electrode detection tool according to claim 1, wherein the test assembly comprises a detection plate, a driving unit and a mounting unit; the electrode to be measured is fixed on the mounting unit, the driving unit comprises a Y-axis moving part and a Z-axis moving part, the Y-axis moving part drives the circuit board to move towards one side of the electrode to be measured and contact with the electrode to be measured to realize signal conduction, and the Z-axis moving part drives the mounting unit, the electrode to be measured and the Y-axis moving part to move downwards together so that the electrode to be measured is immersed in flowing test liquid.

6. The CGM electrode detection tool according to claim 5, wherein the Y-axis moving member comprises a cross plate fixed to a Y-axis substrate; the Y-axis motor is arranged on the transverse plate, vertical plates are arranged on two sides of the transverse plate, guide rails are arranged on the upper surfaces of the vertical plates, the upper parts of the guide rails are connected with an upper supporting plate in a sliding mode through sliding blocks, and the Y-axis motor drives the upper supporting plate to horizontally reciprocate through a screw rod mechanism; the upper supporting plate is connected with the bottom plate through vertical plates arranged at two ends, the bottom plate is fixedly connected with a compressing driving block, and a circuit board is arranged on the side wall of the compressing driving block opposite to the mounting unit.

7. The CGM electrode detection tool according to claim 5, wherein the circuit board is provided with an elastic contact point, and the electrode to be detected is provided with a contact point which is in contact with and conducted with a signal point of the circuit board.

8. The CGM electrode detection tool according to claim 7, wherein the electrode to be detected is an electrode sheet sequentially connected through a base material, the electrode sheet comprises a test portion and a base material, the test portion protrudes out of the base material, fixing portions are cut out at two ends of the electrode sheet, fixing holes are formed in the fixing portions in a penetrating mode, and the electrode sheet is clamped on the mounting unit through the fixing holes.

9. The CGM electrode detection tool according to claim 7, wherein the electrode to be detected is a single electrode cut out from the base material, and the electrode is clamped on the mounting unit through a fixing hole formed therethrough.

10. The CGM electrode detection tool according to claim 8 or 9, wherein the mounting unit comprises a fixing plate and a connecting plate, a slide rail is provided on the rear end surface of the fixing plate, and a fixing groove for engaging an electrode to be detected is provided on the front end surface of the fixing plate; the fixed slot is provided with a fixed bulge corresponding to the electrode to be detected, the sliding rail is in sliding connection with the connecting plate through a sliding groove, the side wall of the fixed plate is also provided with a limiting rod in a protruding mode, the connecting plate is provided with a limiting slot corresponding to the limiting rod, the limiting rod horizontally penetrates through the limiting slot of the connecting plate, and the connecting plate is fixed on the Y-axis moving part.

11. The CGM electrode detection tool according to claim 2, wherein the detection plate is fixed by a bracket, and a heating substrate is provided between a lower end surface of the detection plate and the bracket.

12. The CGM electrode detection tool according to claim 11, wherein a plurality of solution grooves with circular arc-shaped cross sections are concavely formed in the upper end face of the detection plate, one end of each solution groove is communicated with the liquid inlet end, the other end of each solution groove is communicated with the liquid outlet end, at least two mixing plates are arranged in the solution groove close to the liquid inlet end, a plurality of through holes are horizontally formed in the mixing plates, and the through holes between two adjacent mixing plates are staggered.

13. The CGM electrode detection tool according to claim 11, wherein a cover plate is disposed above the detection plate, a first opening and a second opening corresponding to the solution tank are formed in the cover plate, and the first opening and the second opening are respectively used for passing through the electrode to be detected and the first temperature sensor.