Wearable microneedle ear tag for animal heat stress management

Abstract

The utility model provides a wearable microneedle ear tag for animal heat stress management, which comprises a female nail and a main body, the female nail comprises a detection disc, and a microneedle electrode is arranged on the detection disc. The microneedle electrodes comprise a first working microneedle electrode, a second working microneedle electrode, a third working microneedle electrode, a reference microneedle electrode and a temperature sensing microneedle electrode. The animal ear interstitial fluid monitoring device can monitor the temperature, pH, K + concentration and Ca < 2 + > concentration level of animal ear interstitial fluid at the same time, and comprehensively assesses the physiological status of animals under the heat stress condition. The microneedle technology enables the sensor to be more flexibly applied to animals of different types and sizes, wider application possibility is provided, the design of the microneedle is relatively small and light, invasive interference to the animals is reduced, stress to the animals is reduced, and the microneedle sensor is suitable for being worn by the animals for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to animal intelligent detection technical field, concretely relates to a wearable microneedle ear tag for animal heat stress management. BACKGROUND

[0002] Animal heat stress refers to a series of physiological and psychological reactions caused by body temperature regulation imbalance in high temperature environment. This stress state has a negative impact on animal health and production performance, especially in the breeding industry. High temperature can lead to decreased appetite, metabolic disorder, and reduced immunity in animals, thereby increasing the risk of disease and mortality. In addition, heat stress also affects the reproductive capacity of animals, leading to decreased reproductive performance, and even affects the quality of meat, milk and other products. Effective management of heat stress is crucial, which not only helps to improve the quality of life of animals, but also significantly improves the breeding efficiency. Therefore, paying attention to the management of animal heat stress is not only the responsibility for animal welfare, but also the necessary means to improve economic efficiency and ensure food safety. Through scientific management and intervention measures, breeders can significantly reduce the occurrence of animal heat stress, improve production efficiency, and promote the development of sustainable breeding. In addition to body temperature, animal body fluid physiological and biochemical parameters are also one of the indicators for precise management of heat stress.

[0003] Animal ear tags play an indispensable role in modern animal husbandry, mainly for identity recognition, data management and health monitoring. With the expansion of breeding scale and the improvement of management requirements, traditional animal identification methods have gradually failed to meet the needs of modern breeding. The introduction of ear tags not only simplifies the management process of animals, but also greatly improves the breeding efficiency. Each ear tag usually contains a unique identification number or barcode, and breeders can quickly obtain the basic information of animals through ear tags, including birth date, health record, vaccination situation and production performance, etc.

[0004] Microneedle technology is a painless and minimally invasive sampling method that can extract body fluid samples such as interstitial fluid without causing significant harm to animals. For most breeding animals, their sweat glands are underdeveloped, so they cannot be analyzed through sweat. Interstitial fluid, as an important physiological body fluid, can reflect the overall health status of animals, including water, electrolyte balance, metabolic products and other indicators.

[0005] There is no wearable microneedle ear tag for animal heat stress precise management in the market. In the existing application of animal ear tag for animal temperature monitoring, the application with publication number CN115428745A discloses a temperature sensing color changing material for supervising the body temperature of livestock, so as to early detect and treat the livestock in the early stage of epidemic. The color of the ear tag will change with the temperature of the animal, so as to realize the temperature monitoring. The ear tag is low in cost, and the temperature monitoring can be realized by using a low-cost camera. However, the sensor has low detection accuracy, and cannot realize real-time analysis of multiple biochemical indexes.

[0006] The application with publication number CN108617533A discloses an ear tag based livestock monitoring method and device and ear tag monitoring system. First, the body temperature information collected by a temperature sensor and the motion information collected by a posture sensor are acquired. The temperature sensor and the posture sensor are arranged in an electronic ear tag. According to the body temperature information and the motion information, the corresponding health analysis result of the livestock individual is obtained. The individual health information includes body temperature information, posture information, exercise amount, and exercise amplitude and frequency. The temperature sensor and the posture sensor in the electronic ear tag detect the state of the livestock individual from the physiological and motion aspects of the livestock individual, and the monitoring result is objective, quantitative, and accurate, but the physiological and biochemical parameters of the livestock individual are not detected. Practical new type content

[0007] To solve the above technical problems in the prior art, the utility model provides a wearable microneedle ear tag for animal heat stress management, which can simultaneously monitor the temperature, pH, K + Concentration and Ca 2+ Concentration level of the interauricular fluid of an animal, and comprehensively evaluate the physiological state of the animal under heat stress conditions.

[0008] The utility model provides a wearable microneedle ear tag for animal heat stress management, which includes a female nail and a main body. The main body includes a label and a mounting hole arranged at the upper end of the label. The female nail includes a support column that passes through the mounting hole during use. One end of the support column is provided with a nail head with a sharp end. The other end of the support column is provided with a detection disc. During use, the support column passes through the ear of an animal, and the detection disc clamps the ear of the animal from one side of the main body in cooperation with the label.

[0009] The detection disc is provided with a microneedle electrode on the side facing the main body. The microneedle electrode includes a first working microneedle electrode, a second working microneedle electrode, a third working microneedle electrode, a reference microneedle electrode, and a temperature sensing microneedle electrode. The first working microneedle electrode is used to detect the pH of the interauricular fluid of the animal. The second working microneedle electrode is used to detect the K +The third working microneedle electrode is used for detecting the Ca2+ concentration of the interauricular fluid of the animal 2+ The reference microneedle electrode is a reference electrode for the first working microneedle electrode, the second working microneedle electrode and the third working microneedle electrode, and is used for maintaining the potential of the first working electrode, the second working electrode and the third working electrode stable during sensing, thereby preventing the interference of other ions.

[0010] The support column is provided with a conductive column leading out from each microneedle electrode, and the mounting hole is internally provided with a positioning conductive groove corresponding to the conductive column. The side wall of the positioning conductive groove is provided with a conductive layer. In use, the positioning conductive groove is connected with the conductive column in a matched mode, so that the label is clamped on the female nail and cannot rotate to cause the interruption of the connection of the circuit between the label and the female nail.

[0011] The label is provided with a circuit board for processing and transmitting detection data. The circuit board is connected with the conductive layer of each positioning conductive groove through a wire. The circuit board includes a front-end analog circuit, a conversion circuit and a micro-control circuit, and can realize real-time data transmission.

[0012] Preferably, each microneedle electrode includes a microneedle array composed of a plurality of microneedles. Each microneedle is in a conical shape and is used for penetrating the skin of the animal ear. The microneedle array works through a plurality of microneedles, can cover a larger area, and can collect signals at multiple points, thereby realizing higher data collection efficiency and accuracy.

[0013] Further preferably, the bottom surface radius of the microneedle is 0.25-1 mm, the height is 1-2 mm, and the interval between adjacent microneedles is 0.5-2 mm.

[0014] Further preferably, the detection disc includes a connecting ring surrounding one end of the support column and a plurality of connecting columns extending from the end of the support column to the connecting ring. Each microneedle electrode is arranged at different positions on the connecting columns and / or the connecting ring.

[0015] Further preferably, the first working microneedle electrode, the second working microneedle electrode, the third working microneedle electrode and the reference microneedle electrode are respectively arranged on one connecting column. The temperature sensing microneedle electrode is arranged on two connecting columns and a part of the connecting ring between the two connecting columns.

[0016] Preferably, the side wall of the mounting hole extends to form a stand column on the side of the label away from the detection disc. The middle of the stand column is provided with the mounting hole. In use, the stand column is used to fix the label.

[0017] Preferably, one end of the support column is provided with a nail column for preventing the female nail from falling out of the mounting hole during use, and the nail head is arranged on the end face of the nail column, and the diameter of the nail column is the same as the diameter of the nail head base. During use, the female nail head with the nail column passes through one side of the animal's ear, and then the tag is sleeved into the support column on the other side of the animal's ear. The material at the mounting hole of the tag can be slightly deformed to allow the nail head and the nail column to pass through. After the nail head and the nail column pass through the mounting hole, the material at the mounting hole of the tag restores the deformation, and at this time, the diameter of the nail column is larger than the diameter of the mounting hole, so that the tag is clamped between the nail column and the animal's ear, and the female nail is not easy to fall out of the mounting hole of the tag.

[0018] Preferably, the support column is provided with an operation hole extending axially into the support column on the end face of the end provided with the detection disc. The operation hole facilitates the ear tag clamp to clamp the ear tag.

[0019] The microneedle ear tag of the present application can be used for pigs, cattle, sheep and other domestic animals.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] (1) Multi-parameter monitoring: the present application can simultaneously measure the temperature, pH, K + concentration and Ca 2+ concentration level of the interauricular gap fluid of animals, and can comprehensively evaluate the physiological state of animals under heat stress conditions.

[0022] (2) Real-time data collection: the present application can collect detection data in real time, provide dynamic monitoring, help to identify the heat stress state of animals in time and take corresponding intervention measures.

[0023] (3) Improve animal welfare: through timely monitoring and management of animal heat stress, the stress level of animals can be effectively reduced, the welfare and production performance of animals can be improved, and health problems caused by high temperature can be reduced.

[0024] (4) Flexibility and adaptability: the microneedle technology makes the sensor more flexible in application to different types and sizes of animals, providing more extensive application possibilities.

[0025] (5) Reduce invasiveness: the design of the microneedle is relatively small and light, which reduces the invasive disturbance to the animals and reduces the stress on the animals, and is suitable for long-term wearing of the animals. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective structural schematic view of the female nail passing through the main body of the microneedle ear tag of the present application.

[0027] Figure 2 It is an exploded structural schematic view of the microneedle ear tag of the present application.

[0028] Figure 3 It is the three-dimensional structure schematic view of the micro-needle ear tag female nail of the utility model.

[0029] Figure 4 It is the rear view structure schematic view of the micro-needle ear tag female nail of the utility model.

[0030] Figure 5 It is the front view structure schematic view of the micro-needle ear tag female nail of the utility model.

[0031] Figure 6 It is Figure 5 It is the sectional view along the direction of A-A.

[0032] Figure 7 It is the three-dimensional structure schematic view of the micro-needle ear tag main body of the utility model.

[0033] Figure 8 It is the three-dimensional structure schematic view of the micro-needle ear tag main body of the utility model from another perspective.

[0034] Figure 9 It is the structure schematic view of the circuit board in the micro-needle ear tag of the utility model.

[0035] Reference signs:

[0036] Female nail 1, main body 2, nail head 3, nail column 4, support column 5, micro-needle electrode 6, conductive column 7, connecting column 8, operation hole 9, first working micro-needle electrode 10, second working micro-needle electrode 11, third working micro-needle electrode 12, reference micro-needle electrode 13, temperature sensing micro-needle electrode 14, stand column 15, tag 16, positioning conductive groove 17, wire 18, detection disc 19, connecting ring 20, mounting hole 21, circuit board 22. Specific implementation

[0037] As Figures 1-9 shown, the embodiment provides a wearable micro-needle ear tag for animal heat stress management, which comprises a female nail 1 and a main body 2, the main body 2 comprises a tag 16 and a mounting hole 21 arranged at the upper end of the tag 16, the female nail 1 comprises a support column 5 which passes through the mounting hole 21 during use, one end of the support column 5 is provided with a nail head 3 with a pointed end, and the other end of the support column 5 is provided with a detection disc 19. The side wall of the mounting hole 21 extends to the side of the tag 16 away from the detection disc 19 to form a stand column 15, and the middle of the stand column 15 is provided with the mounting hole 21.

[0038] The detection disc 19 is provided with a micro-needle electrode 6 on the side facing the main body 2. The micro-needle electrode 6 comprises a first working micro-needle electrode 10, a second working micro-needle electrode 11, a third working micro-needle electrode 12, a reference micro-needle electrode 13, and a temperature sensing micro-needle electrode 14; the first working micro-needle electrode 10 is used for detecting the pH of the animal ear gap liquid, the second working micro-needle electrode 11 is used for detecting the K+ The third working microneedle electrode 12 is used to detect the Ca 2+ The reference microneedle electrode 13 is used as a reference electrode for the first working microneedle electrode 10, the second working microneedle electrode 11 and the third working microneedle electrode 12, and is used to maintain the potential of the first working microneedle electrode 10, the second working microneedle electrode 11 and the third working microneedle electrode 12 stable during sensing, thereby preventing interference from other ions; the temperature sensing microneedle electrode 14 is used to detect temperature.

[0039] Each microneedle electrode 6 comprises a microneedle array comprising a plurality of microneedles, each microneedle being conical in shape and configured to penetrate the skin of the ear of the animal. The base radius of each microneedle is 0.25-1mm, the height is 1-2mm, and the spacing between adjacent microneedles is 0.5-2mm. The microneedle array is configured to work through a plurality of microneedles, and is configured to cover a larger area and to collect signals at multiple points, thereby achieving higher data collection efficiency and accuracy.

[0040] The detection disc 19 further comprises a connecting ring 20 surrounding one end of the support column 5, and a plurality of connecting columns 8 extending from the end of the support column 5 to the connecting ring 20. Each microneedle electrode 6 is arranged at a different position on the connecting columns 8 and / or the connecting ring 20. The first working microneedle electrode 10, the second working microneedle electrode 11, the third working microneedle electrode 12 and the reference microneedle electrode 13 are arranged on one connecting column 8 respectively; the temperature sensing microneedle electrode 14 is arranged on two connecting columns 8 and the part of the connecting ring 20 between the two connecting columns 8.

[0041] The support column 5 is provided with a conductive column 7 leading out from each microneedle electrode 6, and the mounting hole 21 is provided with a positioning conductive groove 17 corresponding to each conductive column 7. The sidewall of the positioning conductive groove 17 is provided with a conductive layer.

[0042] The support column 5 is provided with an operating hole 9 extending axially into the interior of the support column 5 on the end face of one end provided with the detection disc 19. The operating hole 9 is configured to facilitate the ear tag pliers to clamp the ear tag.

[0043] The support column 5 is provided with a nail column 4 at the end opposite to the detection disc 19, which is used to prevent the female nail 1 from falling out of the mounting hole 21 during use. The end face of the nail column 4 is provided with a nail head 3, and the diameter of the nail column 4 is the same as the diameter of the base of the nail head 3.

[0044] The label 16 is provided with a circuit board 22 for processing and transmitting detection data, and the circuit board 22 is connected to the conductive layer of each positioning conductive groove 17 through a wire 18. The circuit board 22 comprises a front-end analog circuit, a conversion circuit and a micro-control circuit, and can realize real-time data transmission.

[0045] In use, the nail head of the female nail is passed through one side of the animal's ear along with the nail column, the support column is passed over the animal's ear, and then the tag is sleeved into the support column on the other side of the animal's ear. The material at the mounting hole of the tag can be slightly deformed to allow the nail head and the nail column to pass through. After the nail head and the nail column pass through the mounting hole, the material at the mounting hole of the tag returns to its original shape. At this time, the diameter of the nail column is greater than the diameter of the mounting hole, so that the tag is clamped between the nail column and the animal's ear, and the female nail is not easy to fall out of the mounting hole of the tag. At this time, the side of the detection disc facing the tag clamps the animal's ear together with the tag. The positioning conductive groove and the conductive column in the mounting hole are connected one by one, so that the tag is clamped on the female nail and does not rotate to cause the circuit between the tag and the female nail to be disconnected. The detection disc is attached to the animal's ear, the microneedle electrode on the detection disc pierces the skin of the animal's ear, and the temperature of the animal's ear and the pH, K + concentration and Ca 2+ concentration of the interstitial fluid of the animal's ear are detected, and the detection data are transmitted into the circuit board in real time for processing and output.

Claims

1. A wearable microneedle ear tag for animal heat stress management, comprising a female pin and a main body, the main body including a tag and a mounting hole at the upper end of the tag, the female pin including a support post that passes through the mounting hole during use, one end of the support post having a pin head with a pointed tip, characterized in that, The other end of the support column is equipped with a detection plate. In use, the support column passes through the animal's ear, and the side of the detection plate facing the main body cooperates with the label to hold the animal's ear. The detection disk has microneedle electrodes on the side facing the main body; The microneedle electrode includes a first working microneedle electrode, a second working microneedle electrode, a third working microneedle electrode, a reference microneedle electrode, and a temperature-sensing microneedle electrode; the first working microneedle electrode is used to detect the pH of the animal ear space fluid, and the second working microneedle electrode is used to detect the K+ of the animal ear space fluid. + Concentration, the third working microneedle electrode is used to detect the Ca concentration in the interstitial fluid of an animal's ear. 2+ Concentration, wherein the reference microneedle electrode is a reference electrode used for the first working microneedle electrode, the second working microneedle electrode, and the third working microneedle electrode; the temperature sensing microneedle electrode is used to detect temperature; The support column is provided with conductive columns leading out from each of the microneedle electrodes. The mounting hole is provided with positioning conductive grooves that correspond one-to-one with the conductive columns. The sidewall of the positioning conductive groove is provided with a conductive layer. In use, the positioning conductive groove is connected to the conductive column. The sign is equipped with a circuit board for processing and transmitting detection data, and the circuit board is connected to the conductive layer of each of the positioning conductive grooves by wires.

2. The wearable microneedle ear tag for animal heat stress management according to claim 1, characterized in that, Each of the microneedle electrodes comprises a microneedle array consisting of several microneedles, each of which is conical in shape.

3. The wearable microneedle ear tag for animal heat stress management according to claim 2, characterized in that, The microneedles have a bottom radius of 0.25-1 mm, a height of 1-2 mm, and a spacing of 0.5-2 mm between adjacent microneedles.

4. The wearable microneedle ear tag for animal heat stress management according to claim 2, characterized in that, The detection disk includes a connecting ring surrounding one end of the support column, and a plurality of connecting posts extending from the end of the support column to the connecting ring; Each of the microneedle electrodes is located at a different position on the connecting post and / or connecting ring.

5. The wearable microneedle ear tag for animal heat stress management according to claim 4, characterized in that, The first working microneedle electrode, the second working microneedle electrode, the third working microneedle electrode, and the reference microneedle electrode are each located on a connecting post; The temperature-sensing microneedle electrode is located between the two connecting posts and the connecting ring.

6. The wearable microneedle ear tag for animal heat stress management according to claim 1, characterized in that, The sidewall of the mounting hole extends toward the side of the sign facing away from the detection plate to form a column, and the mounting hole is provided in the middle of the column.

7. The wearable microneedle ear tag for animal heat stress management according to claim 1, characterized in that, One end of the support column is provided with a nail post to prevent the female nail from falling out of the mounting hole during use. The nail head is provided on the end face of the nail post, and the diameter of the nail post is the same as the diameter of the base of the nail head.

8. The wearable microneedle ear tag for animal heat stress management according to claim 1, characterized in that, The support column has an operating hole on the end face where the detection disk is located, extending axially inward into the support column.

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