A portable non-invasive blood glucose detection device

Abstract

The application relates to the technical field of noninvasive blood glucose detection, and discloses a portable noninvasive blood glucose detection device which comprises a placing unit, a cover pressing unit is arranged at the top end of the placing unit, a fixing unit is movably connected to one end of the placing unit, the cover pressing unit is movably clamped on one side of the top end of the fixing unit, a central shaft is arranged at the top of one end of the placing unit close to the fixing unit, a display screen is arranged at the top of one end of the cover pressing unit close to the fixing unit, a key linkage is arranged at one end of the cover pressing unit away from the fixing unit, a control circuit board is arranged in the placing unit, and a charging hole is arranged in the middle of one end of the placing unit close to the fixing unit. The data detected by the terminal can be monitored in real time, the contact between the detection part of the patient and the detection surface of the device is more complete through the contact plate, the blood glucose is more stably detected, and the detection effect is better.

Description

Technical Field

[0001] This invention relates to, but is not limited to, the technical field of non-invasive blood glucose testing, and particularly to a portable non-invasive blood glucose testing device. Background Technology

[0002] With the development of society and economy, people's quality of life has gradually improved. Diabetes has become one of the major diseases that endanger human health in modern society. Too high or too low blood sugar not only affects the patient's metabolism, but is often accompanied by some complications, such as cardiovascular disease and neuropathy. These pose a great threat to the patient's health. Diabetes occurs more often in the elderly. Diabetes is a chronic disease, and it is difficult to achieve good treatment results through one-time treatment. Therefore, diabetic patients need to understand their blood sugar levels in real time and accurately.

[0003] Currently, all methods for testing blood glucose are invasive, involving direct blood sampling or finger prick at hospitals or home. The blood glucose level is then measured using electrochemical methods. This method can cause physical discomfort for patients during prolonged treatment, and repeated blood draws can increase the risk of infection. Furthermore, the long-term testing process places a significant financial burden on patients. Therefore, non-invasive blood glucose testing is a convenience brought about by technological advancements and a symbol of scientific progress.

[0004] Non-invasive blood glucose meters are a type of blood glucose meter that does not require piercing the skin to collect blood. Instead, they indirectly test the concentration of glucose in the blood using methods such as infrared, electromagnetic, thermal fusion, and ultrasound. This eliminates the pain and skin damage associated with blood glucose testing, making it more acceptable to patients, simple to operate, and convenient for home testing. However, non-invasive blood glucose testing devices still have the following problems:

[0005] 1. However, since non-invasive blood glucose testing devices are still in the development stage, there is a certain degree of error in the accuracy of blood glucose testing. Due to the different finger sizes of different patients, the contact surface of the finger is not complete when using the testing device, which leads to a larger error in the blood glucose testing results.

[0006] 2. Because finger-tip non-invasive blood glucose testing devices require opening the top and bottom covers before testing, the devices are prone to opening automatically when stored while being carried out, which can easily damage the testing area, reduce the accuracy of blood glucose testing, and shorten the device's lifespan. Summary of the Invention

[0007] In view of the problems of poor detection effect and inconvenience of carrying existing technologies, a portable non-invasive blood glucose detection device is proposed.

[0008] One aspect of this application provides a portable non-invasive blood glucose testing device, the purpose of which is to increase the contact integrity of the testing surface during patient testing, improve the blood glucose testing effect, and prevent the blood glucose device from opening during carrying, thereby protecting the testing surface and increasing the service life of the device.

[0009] The technical solution of the present invention is as follows: a portable non-invasive blood glucose testing device, comprising a placement unit, wherein the top of the placement unit is provided with a cover pressing unit, one end of the placement unit is movably connected to a fixing unit, and the cover pressing unit is movably snapped onto one side of the top of the fixing unit, the fixing unit snapping the placement unit and the cover pressing unit together, a central shaft is provided on the top of the placement unit near the fixing unit, the top of the central shaft is movably connected to the cover pressing unit, the central shaft is rotatably connected to the placement unit through the cover pressing unit, a display screen is provided on the top of the cover pressing unit near the fixing unit, a button linkage is provided on the end of the cover pressing unit away from the fixing unit, a control circuit board is provided inside the placement unit, and a charging hole is provided in the middle of the placement unit near the fixing unit.

[0010] Furthermore, the placement unit has first heat dissipation holes on both sides of its top, a lower locking groove in the middle of its top, a lower inflation bladder inside the lower locking groove, a lower contact plate inside the top of the lower inflation bladder, a first air pump on the side of the lower inflation bladder near the first heat dissipation holes, second heat dissipation holes on both sides of the bottom of the cover unit, an upper locking groove in the middle of the bottom of the cover unit, an upper inflation bladder inside the upper locking groove, an upper contact plate inside the bottom of the upper inflation bladder, and a second air pump on the side of the upper contact plate near the second heat dissipation holes.

[0011] Using the above technical solution, the device is started via button linkage. User information is displayed on the screen for testing. For patients who have not used the device before, basic information is created before use. The patient's finger is placed on the lower contact plate by opening the pressure unit, and then the pressure unit is closed. Inflation is performed by the first and second air pumps through the contact points between the lower and upper contact plates and the patient's finger. During inflation, the upper and lower air bladders deform, compressing the lower and upper contact plates. Inflation stops when the pressure reaches a preset threshold peak, allowing the patient's finger to contact the lower and upper contact plates. The system is made more stable, and then testing is performed. After the test, the inflation thresholds of the upper and lower air bladders are adjusted to the middle value using the first and second inflation pumps, and the patient's blood glucose is tested again. After the test, the inflation thresholds of the upper and lower air bladders are adjusted to the minimum value using the first and second inflation pumps, and the patient's blood glucose is tested again. After the test, the three values ​​measured by the device are compared, making the patient's blood glucose test more accurate, more stable, and with better test results. Finally, the data is archived through the control circuit board and the test data is sent to the mobile APP, along with the best suggestions.

[0012] Furthermore, during data processing, the control circuit board detects the contact area and squeezing force of the patient's fingers through the upper and lower contact plates, generating detection information. This information is then transmitted to the control circuit board for further processing to generate pressure information X. During data processing, a pressure threshold Y is set. The processed pressure information X is compared with the pressure threshold Y. If the pressure threshold Y is greater than or equal to the pressure information X, inflation stops, and the patient's blood glucose level is measured. After the measurement, blood glucose information is generated and recorded. A certain amount of gas is released from the lower and upper inflatable bladders to bring their pressure to the optimal level of pressure threshold Y. Within the specified range, the patient's blood glucose is tested again. After the test, the blood glucose information is generated and recorded. Then, the gas in the lower and upper inflator bladders is released until it reaches the minimum pressure threshold Y. The gas release is then stopped, and the patient's blood glucose is tested again. After the test, the blood glucose information is generated and recorded. The blood glucose information from the three parts is compared to determine the accuracy of the blood glucose test. The formula for the change trend of the inflation pressure of the lower and upper inflator bladders is: P = Asin(w + ρ) + p0, where A is the amplitude, w is the angular frequency, ρ is the phase angle, and p0 is the static pressure. The formula between the contact area S and the inflation pressure P is: S = aP 2+bP+c, where S is the contact area, P is the inflation pressure, and a, b, c are working coefficients. The relationship between blood glucose reading y and blood glucose concentration x is expressed by the formula: y = kx + b, where y is the blood glucose reading, x is the blood glucose concentration, and k and b are coefficients. Blood glucose readings under different threshold pressures are... The formula for the optimal detection accuracy corresponding to the optimal pressure value P is:

[0013] Using the above technical solution, the Bayesian model allows for continuous online learning with new data, improving detection accuracy and continuously optimizing the device for more precise detection. The device is activated via button linkage, and data is then displayed on the screen, allowing for selection and adjustment. Adjustable parameters include the age, gender, fasting time, and post-meal time of the testing personnel. Basic user information is created and saved, allowing for direct testing upon next access to the user's information. Newly created basic information is synchronously saved on both the device and a mobile app. The control circuit board automatically determines the testing time and environment. Information can be operated on the display screen or via the personal mobile app. The device has a network connection; when network enabled, it can be remotely displayed on the personal and related contact mobile apps. When elderly parents measure their blood sugar at home, their children in other locations can receive the data in real time. They can also set reminders for blood sugar monitoring times and critical values ​​via a mobile app. The app provides alerts for excessively high or low blood sugar levels and sends SMS and background reminders if a test is forgotten. Children can remind their parents to test, ensuring accurate and timely monitoring, which in turn allows for more timely treatment and prevents accidents caused by blood sugar fluctuations. Furthermore, the mobile app allows for the archiving and storage of each test's data for future treatment. The device contains a battery (not shown in the diagram due to its existing technology, but described in words), which can be charged via a 5000mAh charging port. The device can be used while charging or after a full charge.

[0014] Furthermore, a recycling groove is provided on both sides of the top of the cover pressure unit. A compression spring is fixedly connected to the bottom of the recycling groove. A snap-fit ​​block is fixedly connected to the side of the compression spring away from the recycling groove. The snap-fit ​​block has a triangular cross-section.

[0015] Furthermore, the fixing unit has rotating shafts on both sides of its bottom end. The bottom ends of the rotating shafts are located inside the placement unit and are movably connected. The fixing unit is rotatably connected to the placement unit via the rotating shafts. The fixing unit has compression holes on both sides of its top end. The bottom end of the compression hole has a through-hole with a fixing slot. The fixing slot is located on both sides inside the fixing unit. A protective ring is movably engaged in the middle of the compression hole. A pressing post is movably engaged in the middle of the protective ring. The pressing post is movably engaged on the fixing unit. The bottom end of the pressing post has a locking block. The pressing post and the locking block are movably connected. The bottom end of the pressing post and the top end of the fixing slot are on the same plane and are movably connected. The locking block is engaged in the fixing slot and contacts the pressing post.

[0016] By adopting the above technical solution, the device will not separate during transport, and the internal detection elements will be protected and buffered, making the device more stable, with better detection results and higher stability.

[0017] Furthermore, the recycling tanks, compression springs, and locking blocks on both sides are mirror images of each other, and the compression holes, protective rings, pressing posts, and fixing slots on both sides are mirror images of each other, and are respectively centered with the recycling tanks, compression springs, and locking blocks. The pressing posts are limited by the protective rings.

[0018] By adopting the above technical solution, when using the device, the fixing unit and the cover pressure unit are separated by the compression spring, thereby making the detection effect more excellent, the stability better, the protection performance of the device more enhanced, the subsequent detection effect more accurate, and the service life of the device longer.

[0019] Furthermore, the central shaft is provided with a connecting tube inside, the central shaft is rotatably connected to the connecting tube, the central shaft rotates around the connecting tube as the axis, a cover pressing unit is rotatably connected to the top of the central shaft, and a placement unit is provided at the bottom of the central shaft. The cover pressing unit is separated from the placement unit through the central shaft.

[0020] Furthermore, the control circuit board includes a signal acquisition unit and a processing module. The signal acquisition unit includes an infrared sensor, a photoelectric sensor, a humidity sensor, and a near-end thermistor and a far-end thermistor for detecting blood flow parameters. The processing module includes a microprocessor, a signal conditioning unit, and a storage unit. The signal conditioning unit includes an amplification and filtering circuit, an A / D conversion circuit, and an integration circuit. The signal acquired by the multi-parameter integrated signal acquisition unit is processed by the signal conditioning unit and then sent to the microprocessor. The microprocessor performs calculations on the signal and stores the calculation results in the storage unit. The processing module is network-connected to a personal terminal and electrically connected to a display screen.

[0021] Furthermore, the signal acquisition unit within the control circuit board collects information, including but not limited to ambient temperature, humidity, body surface temperature, body surface humidity, blood oxygen saturation, blood flow velocity, hemoglobin concentration, and blood glucose concentration. This information is then transmitted to the processing module, which processes it and transmits the data in real time to the personal terminal and display screen. The display screen operates as follows: the device is activated via a button, the program starts, and the main interface for testing is displayed. The main interface includes user guide, new user, user testing, help options, and settings. When a user uses the device for the first time, they need to create a new user, enter the user's basic information, and then click on user testing to perform a test on the patient. During the test, the user's testing status (fasting or postprandial) needs to be selected. The control circuit board is interconnected with the mobile APP via the network. When a patient who has not been tested uses the device, the basic information of the new user is created and saved. The next time the user information is accessed, testing can be performed directly. The newly created basic information is saved synchronously on the device and the mobile APP.

[0022] The beneficial effects of this invention are:

[0023] 1. By using the first inflation pump, lower inflation bag, and lower contact plate, along with the second inflation pump, upper inflation bag, and upper contact plate, the device ensures full contact between the patient's fingers and the device when used on different patients. This prevents discomfort and ensures proper blood flow to the patient's fingers. It also makes the contact between the patient's testing site and the device's testing surface more complete, resulting in more stable and effective blood glucose testing.

[0024] 2. The data can be monitored in real time through a personal terminal, allowing patients and their children to know their parents' health status even when they are away from home. Blood glucose monitoring time reminders and critical values ​​can be set, and alerts can be given when blood glucose levels are too high or too low, so that the patient's blood glucose status can be understood in a timely manner, making subsequent treatment more timely and avoiding accidents caused by blood glucose fluctuations.

[0025] 3. The device is secured by a fixing unit, preventing it from opening due to external shaking when carried outside, thus avoiding damage to the internal detection parts and improving the device's protective performance, thereby extending its service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall placement cross-sectional structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the overall opening and closing end cross-sectional structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the overall opening structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixed unit of the present invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0032] Figure 7 This is a schematic diagram of the card interface connection of the present invention;

[0033] Figure 8 This is a schematic diagram of the control flow structure of the present invention;

[0034] In the picture:

[0035] 1. Placement unit; 11. First heat dissipation hole; 12. Lower locking slot; 13. Lower airbag; 14. Lower contact plate; 15. First air pump; 2. Cover pressing unit; 21. Second heat dissipation hole; 22. Upper locking slot; 23. Upper airbag; 24. Upper contact plate; 25. Second air pump; 26. Recycling slot; 27. Compression spring; 28. Locking block; 3. Fixing unit; 31. Rotating shaft; 32. Compression hole; 33. Protective ring; 34. Pressing post; 35. Fixing slot; 4. Central shaft; 41. Connecting pipe; 5. Display screen; 6. Button linkage; 7. Control circuit board; 8. Charging hole. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Example 1, referring to Figure 1-8 This is the first embodiment of the present invention, which provides a portable non-invasive blood glucose testing device, including a placement unit 1, a cover pressing unit 2 at the top of the placement unit 1, a fixing unit 3 movably connected to one end of the placement unit 1, a cover pressing unit 2 movably snapped onto one side of the top of the fixing unit 3, the fixing unit 3 snapping the placement unit 1 and the cover pressing unit 2 together, a central shaft 4 at the top of the placement unit 1 near the fixing unit 3, the top of the central shaft 4 movably connected to the cover pressing unit 2, the central shaft 4 being rotatably connected to the placement unit 1 through the cover pressing unit 2, a display screen 5 at the top of the cover pressing unit 2 near the fixing unit 3, a button linkage 6 at the end of the cover pressing unit 2 away from the fixing unit 3, a control circuit board 7 inside the placement unit 1, and a charging hole 8 in the middle of the placement unit 1 near the fixing unit 3.

[0038] Reference Figure 1-4The top of the placement unit 1 has first heat dissipation holes 11 on both sides. The top of the placement unit 1 has a lower locking groove 12 in the middle. The lower locking groove 12 has a lower inflation bag 13 inside. The top of the lower inflation bag 13 has a lower contact plate 14 inside. The lower inflation bag 13 has a first air pump 15 on the side near the first heat dissipation hole 11. The bottom of the cover unit 2 has second heat dissipation holes 21 on both sides. The bottom of the cover unit 2 has an upper locking groove 22 in the middle. The upper locking groove 22 has an upper inflation bag 23 inside. The bottom of the upper inflation bag 23 has an upper contact plate 24 inside. The upper contact plate 24 has a second air pump 25 on the side near the second heat dissipation hole 21.

[0039] Specifically, when using the device, the pressure unit 2 is first opened, and the patient places their finger on the lower contact plate 14. Then, the pressure unit 2 is closed. The lower air bladder 13 and upper air bladder 23 are then inflated by the first air pump 15 and the second air pump 25, causing the lower contact plate 14 and upper contact plate 24 to press against the patient's finger. The contact area and pressure force of the patient's finger are detected by the upper contact plate 24 and lower contact plate 14, generating detection information. This detection information is then transmitted to the control circuit board 7 for data processing, generating pressure information X. During data processing on the control circuit board 7, a pressure threshold Y is set. The processed pressure information X is compared with the pressure threshold Y. When the pressure threshold Y is greater than or equal to the pressure information X, inflation stops, and the patient's blood glucose is detected. After the detection is completed, blood glucose information is generated. Record the results. A certain amount of gas is released from the lower inflator 13 and upper inflator 23 to bring their pressure within the optimal pressure threshold Y range. The patient's blood glucose is then tested again, and the blood glucose information is generated and recorded. Next, the gas in the lower inflator 13 and upper inflator 23 is released until it reaches the minimum pressure threshold Y, at which point the gas release is stopped. The patient's blood glucose is tested again, and the blood glucose information is generated and recorded. The three sets of blood glucose information are compared to determine the accuracy of the blood glucose test. The formula for the pressure change trend of the lower inflator 13 and upper inflator 23 is: P = Asin(w + ρ) + p0, where A is the amplitude, w is the angular frequency, ρ is the phase angle, and p0 is the static pressure. The formula between the contact area S and the inflation pressure P is: S = aP 2 +bP+c, where S is the contact area, P is the inflation pressure, and a, b, c are working coefficients. The relationship between blood glucose reading y and blood glucose concentration x is expressed by the formula: y = kx + b, where y is the blood glucose reading, x is the blood glucose concentration, and k and b are coefficients. Blood glucose readings under different threshold pressures are... The formula for the optimal detection accuracy corresponding to the optimal pressure value P is: Historical detection data is collected and transmitted to control circuit board 7. The detected data is numbered and formed into a sample set, which is divided into a training set and a test set. The detected data can include spectral signals, body temperature, heart rate, patient vitamin intake, and exercise time. These variables serve as evidence, and a learning model is built. The learning model is trained using the training set to obtain an initial machine learning model. The learning model is tested using the test set, and the model outputs a learning model that meets the preset accuracy value. Using a Bayesian model allows for continuous online learning with new data, improving detection accuracy and continuously optimizing the device to make detection more precise. The device is started via button 6, and the data is then displayed on screen 5, allowing selection and adjustment of parameters such as the age, gender, fasting time, and post-meal time of the person being tested. Basic user information is created and saved, allowing for direct testing upon next access to the user information. Newly created basic information is saved synchronously on the device and the mobile app. The control circuit board 7 automatically determines the detection parameters. The device allows for operation of information on display screen 5 and a personal mobile app, including time and usage environment. With network connectivity, the data can be remotely displayed on the user's and related contacts' mobile apps. When elderly parents measure their blood sugar at home, their children in other locations can receive the data in real time and set reminders for monitoring blood sugar and critical values ​​on the app. The device also provides alerts for excessively high or low blood sugar levels, and sends SMS and background reminders if a test is forgotten. Children can remind their parents to test, ensuring accurate and timely monitoring for patients and preventing accidents caused by blood sugar fluctuations. Furthermore, the mobile app allows for the archiving and storage of data from each test for future reference. The battery, which is not shown in detail in the diagram due to its existing technology, is described in words. It can be charged via charging port 8. The battery has a capacity of 5000 mAh and can be used while charging or after a full charge.

[0040] During use, the device is started via button 6, and user information is displayed on screen 5 for testing. For patients who have not previously used the device, basic information is created before use. The patient's finger is placed on the lower contact plate 14 by opening the pressure unit 2, and then the pressure unit 2 is closed. Inflation is achieved through the contact points between the lower and upper contact plates 14 and 24, using the first and second air pumps 15 and 25. During inflation, the upper and lower air bladders 23 deform, compressing the lower and upper contact plates 14 and 24. Inflation stops when the pressure reaches a preset threshold peak, allowing the patient's finger to contact the lower and upper contact plates 14. After the contact of plate 24 is more stable, a test is performed. After the test, the inflation thresholds of the upper airbag 23 and the lower airbag 13 are adjusted to the middle value of the threshold by the first inflation pump 15 and the second inflation pump 25, and the patient's blood glucose is tested again. After the test, the inflation thresholds of the upper airbag 23 and the lower airbag 13 are adjusted to the minimum value of the threshold by the first inflation pump 15 and the second inflation pump 25, and the patient's blood glucose is tested again. After the test, the three values ​​detected by the device are compared to make the patient's blood glucose test more accurate, more stable, and better. Finally, the data is archived by the control circuit board 7 and the test data is sent to the mobile APP, and the best suggestions are given.

[0041] Example 2, refer to Figure 1-7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a recycling groove 26 is provided on both sides of the top of the cover pressing unit 2, a compression spring 27 is fixedly connected to the bottom of the recycling groove 26, and a snap-fit ​​block 28 is fixedly connected to the side of the compression spring 27 away from the recycling groove 26. The cross-section of the snap-fit ​​block 28 is triangular.

[0042] Reference Figure 1-7 The fixed unit 3 has rotating shafts 31 on both sides of its bottom end. The bottom end of the rotating shafts 31 is located inside the placement unit 1 and is movably connected. The fixed unit 3 is rotatably connected to the placement unit 1 through the rotating shafts 31. The fixed unit 3 has compression holes 32 on both sides of its top end. The bottom end of the compression holes 32 has a fixed slot 35. The fixed slot 35 is located on both sides inside the fixed unit 3. A protective ring 33 is movably engaged in the middle of the compression holes 32. A pressing post 34 is movably engaged in the middle of the protective ring 33. The pressing post 34 is movably engaged in the fixed unit 3. The bottom end of the pressing post 34 has a locking block 28. The pressing post 34 and the locking block 28 are movably connected. The bottom end of the pressing post 34 and the top end of the fixed slot 35 are on the same plane and are movably connected. The locking block 28 is engaged in the fixed slot 35 and is in contact with the pressing post 34.

[0043] Specifically, the recycling slots 26, compression springs 27, and locking blocks 28 on both sides are mirror images of each other. The compression holes 32, protective rings 33, pressing posts 34, and fixing slots 35 on both sides are mirror images of each other and are centered on the recycling slots 26, compression springs 27, and locking blocks 28, respectively. The pressing posts 34 are limited by the protective rings 33. When the pressing posts 34 do not press the locking blocks 28, they are in a stable state and will not accidentally press the locking blocks 28, thereby preventing the fixing unit 3 from falling off from the placement unit 1 and the cover unit 2. This improves the protection of the device and makes it more stable during carrying. It will not cause the placement unit 1 and the cover unit 2 to separate due to shaking, thus preventing damage to the lower contact plate 14 and the upper contact plate 24. This makes the detection effect more stable and increases the service life.

[0044] During use, pressing the pressing column 34 causes the locking block 28 to retract backward. As the locking block 28 retracts, the fixing unit 3 rotates downward around the rotating shaft 31, bringing its interior into contact with the bottom end of the covering unit 2. This allows the placement unit 1 to separate from the covering unit 2, enabling blood glucose testing of the patient. After the patient's test is completed, rotating the fixing unit 3 causes the locking block 28 to engage with the fixing slot 35, thus forming a unified device that is easy to carry, has better overall integrity, provides superior protection, and ensures the device's testing performance. The remaining structure is the same as in Embodiment 1.

[0045] Example 3, referring to Figure 1-8 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: a connecting pipe 41 is provided inside the central shaft 4, the central shaft 4 is rotatably connected to the connecting pipe 41, the central shaft 4 rotates around the connecting pipe 41 as the axis, a cover unit 2 is rotatably connected to the top of the central shaft 4, a placement unit 1 is provided at the bottom of the central shaft 4, and the cover unit 2 is separated from the placement unit 1 through the central shaft 4.

[0046] The control circuit board 7 includes a signal acquisition unit and a processing module. The signal acquisition unit includes an infrared sensor, a photoelectric sensor, a humidity sensor, and a near-end thermistor and a far-end thermistor for detecting blood flow parameters. The processing module includes a microprocessor, a signal conditioning unit, and a storage unit. The signal conditioning unit includes an amplification and filtering circuit, an A / D conversion circuit, and an integration circuit. The signal acquired by the multi-parameter integrated signal acquisition unit is processed by the signal conditioning unit and then sent to the microprocessor. The microprocessor performs calculations on the signal and sends the calculation results to the storage unit for storage. The infrared light emitting array is connected to the output line of the microprocessor. The processing module is network-connected to a personal terminal and electrically connected to a display screen 5.

[0047] Specifically, during use, information is collected via a signal acquisition device, including but not limited to ambient temperature, humidity, body surface temperature, body surface humidity, blood oxygen saturation, blood flow velocity, hemoglobin concentration, and blood glucose concentration. This data is then transmitted to the processing module, which processes it and transmits the data in real time to the personal terminal and display screen 5. The workflow of display screen 5 is as follows: the device is started via button linkage 6, the program is started, and the main detection interface is displayed. The main interface includes user guide, new user, user detection, help options, and settings. When using the device for the first time, a new user needs to be created, and the user's basic information is entered. Then, the user clicks on user detection to perform a test on the patient. During the test, the user's test status needs to be selected, such as fasting or postprandial time, and then the test begins, making the device's detection effect more stable and the detection effect better. The remaining structure is the same as that of Embodiment 2.

[0048] Working principle: When the device is in use, pressing the pressing column 34 causes the locking block 28 to retract backward. As the locking block 28 retracts, the fixing unit 3 rotates downward around the rotating shaft 31, bringing its interior into contact with the bottom end of the covering unit 2. This allows the placement unit 1 to separate from the covering unit 2, enabling blood glucose testing of the patient. The device is then activated via button 6, and user information is displayed on the screen 5 for testing. For patients who have not previously used the device, a new baseline can be established. This information is used afterward. The patient's finger is placed on the lower contact plate 14 by opening the pressure unit 2, and then the pressure unit 2 is closed. Inflation is then performed via the first air pump 15 and the second air pump 25 through the contact points between the lower contact plate 14 and the upper contact plate 24 and the patient's finger. During inflation, the upper and lower air bladders 23 deform, compressing the lower and upper contact plates 14 and 24. Inflation stops when the pressure reaches a preset threshold peak, allowing the patient's finger to... The contact between the lower contact plate 14 and the upper contact plate 24 is made more stable before testing. After testing, the inflation thresholds of the upper airbag 23 and the lower airbag 13 are adjusted to the middle value of the threshold by the first inflation pump 15 and the second inflation pump 25, and the patient's blood glucose is tested again. After testing, the inflation thresholds of the upper airbag 23 and the lower airbag 13 are adjusted to the minimum value of the threshold by the first inflation pump 15 and the second inflation pump 25, and the patient's blood glucose is tested again. After testing, the three values ​​detected by the device are compared to make the patient's blood glucose test more accurate, more stable, and better. Then, the data is archived by the control circuit board 7 and the test data is sent to the mobile APP, and the best suggestions are given. After the patient's test is completed, the fixing unit 3 is lifted upward so that the locking block 28 and the fixing slot 35 lock together, thereby fixing the device to form a stable whole, which is convenient to carry, has better integrity, and provides better protection for the device, thus ensuring the detection performance of the device.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A portable non-invasive blood glucose testing device, comprising a placement unit (1), characterized in that: The device includes a placement unit (1), a cover pressing unit (2) at the top of the placement unit (1), a fixing unit (3) movably connected to one end of the placement unit (1), a cover pressing unit (2) movably snapped onto one side of the top of the fixing unit (3), the fixing unit (3) snapping the placement unit (1) and the cover pressing unit (2) together, a central shaft (4) is provided at the top of the placement unit (1) near the fixing unit (3), the cover pressing unit (2) is movably connected to the top of the central shaft (4), the central shaft (4) is rotatably connected to the placement unit (1) through the cover pressing unit (2), a display screen (5) is provided at the top of the cover pressing unit (2) near the fixing unit (3), a button linkage (6) is provided at the end of the cover pressing unit (2) away from the fixing unit (3), a control circuit board (7) is provided inside the placement unit (1), and a charging hole (8) is opened in the middle of the placement unit (1) near the fixing unit (3). When the control circuit board (7) processes data, it detects the contact area and squeezing force of the patient's finger through the upper contact plate (24) and the lower contact plate (14), and generates detection information. This detection information is then transmitted to the control circuit board (7) for data processing to generate pressure information X. During data processing, the control circuit board (7) sets a pressure threshold Y. The processed pressure information X is compared with the pressure threshold Y. When the pressure threshold Y is greater than or equal to the pressure information X, inflation stops, and the patient's blood glucose is detected. After the detection is completed, blood glucose information is generated and recorded. The lower inflator (14) is then... 3) A certain amount of gas is released from the upper inflator (23) to bring its pressure to the optimal range of pressure threshold Y. The patient's blood glucose is then tested again. After the test is completed, the blood glucose information is generated and recorded. Then, the gas in the lower inflator (13) and the upper inflator (23) is released to bring it to the minimum value of pressure threshold Y. After releasing the gas, the patient's blood glucose is tested again. After the test is completed, the blood glucose information is generated and recorded. The blood glucose information of the three parts is compared to determine the accuracy of the blood glucose test. The formula for the trend of the inflation pressure change of the lower inflator (13) and the upper inflator (23) is: Where A is the amplitude and w is the angular frequency. Let p0 be the phase angle, p0 be the static pressure, and the formula between the contact area S and the inflation pressure P is: Where S is the contact area, P is the inflation pressure, and a, b, c are the working coefficients. The relationship between blood glucose reading y and blood glucose concentration x is expressed by the formula: Where y is the blood glucose reading, x is the blood glucose concentration, and k and b are coefficients. The blood glucose readings at different threshold pressures are... The formula for the optimal detection accuracy corresponding to the optimal pressure value P is: .

2. The portable non-invasive blood glucose testing device according to claim 1, characterized in that: The placement unit (1) has first heat dissipation holes (11) on both sides of the top. The placement unit (1) has a lower locking groove (12) in the middle of the top. The lower locking groove (12) has a lower airbag (13) inside. The lower airbag (13) has a lower contact plate (14) inside the top. The lower airbag (13) has a first air pump (15) on the side near the first heat dissipation hole (11). The cover unit (2) has second heat dissipation holes (21) on both sides of the bottom. The cover unit (2) has an upper locking groove (22) in the middle of the bottom. The upper locking groove (22) has an upper airbag (23) inside. The upper airbag (23) has an upper contact plate (24) inside the bottom. The upper contact plate (24) has a second air pump (25) on the side near the second heat dissipation hole (21).

3. The portable non-invasive blood glucose testing device according to claim 2, characterized in that: The top of the cover unit (2) has recycling grooves (26) on both sides. A compression spring (27) is fixedly connected to the bottom of the recycling groove (26). A snap-fit ​​block (28) is fixedly connected to the side of the compression spring (27) away from the recycling groove (26). The cross-section of the snap-fit ​​block (28) is triangular.

4. A portable non-invasive blood glucose testing device according to claim 3, characterized in that: The fixing unit (3) has rotating shafts (31) on both sides of its bottom end. The bottom end of the rotating shaft (31) is located inside the placement unit (1) and is movably connected. The fixing unit (3) is rotatably connected to the placement unit (1) through the rotating shafts (31). The fixing unit (3) has compression holes (32) on both sides of its top end. The bottom end of the compression hole (32) has a fixing slot (35) that extends through it. The fixing slot (35) is located on both sides inside the fixing unit (3). The middle part of the compression hole (32) A protective ring (33) is attached to the movable locking mechanism. A pressing post (34) is movably locked to the middle of the protective ring (33). The pressing post (34) is movably locked to the fixed unit (3). A locking block (28) is provided at the bottom end of the pressing post (34). The pressing post (34) and the locking block (28) are movably connected. The bottom end of the pressing post (34) and the top end of the fixed slot (35) are on the same plane and movably connected. The locking block (28) is locked in the fixed slot (35) and in contact with the pressing post (34).

5. A portable non-invasive blood glucose testing device according to claim 4, characterized in that: The recycling groove (26), compression spring (27) and snap-fit ​​block (28) on both sides are mirror images of each other. The compression hole (32), protective ring (33), pressing post (34) and fixing slot (35) on both sides are mirror images of each other, and are respectively centered with the recycling groove (26), compression spring (27) and snap-fit ​​block (28). The pressing post (34) is limited by the protective ring (33).

6. A portable non-invasive blood glucose testing device according to claim 5, characterized in that: The central shaft (4) is provided with a connecting pipe (41) inside. The central shaft (4) is rotatably connected to the connecting pipe (41). The central shaft (4) rotates around the connecting pipe (41) as the axis. The top of the central shaft (4) is rotatably connected to a cover unit (2). The bottom of the central shaft (4) is provided with a placement unit (1). The cover unit (2) is separated from the placement unit (1) through the central shaft (4).

7. A portable non-invasive blood glucose testing device according to claim 6, characterized in that: The control circuit board (7) includes a signal acquisition unit and a processing module. The signal acquisition unit includes an infrared sensor, a photoelectric sensor, a humidity sensor, a near-end thermistor and a far-end thermistor for detecting blood flow parameters. The processing module includes a microprocessor, a signal conditioning unit and a storage unit. The signal conditioning unit includes an amplification and filtering circuit, an A / D conversion circuit and an integration circuit. The signal acquired by the multi-parameter integrated signal acquisition unit is processed by the signal conditioning unit and then sent to the microprocessor. The microprocessor performs calculations on the signal and sends the calculation results to the storage unit for storage. The infrared light emitting array is connected to the output line of the microprocessor. The processing module is network-connected to a personal terminal and electrically connected to a display screen (5).

8. A portable non-invasive blood glucose testing device according to claim 7, characterized in that: The signal acquisition unit in the control circuit board (7) collects information, including but not limited to ambient temperature, humidity, body surface temperature, body surface humidity, blood oxygen saturation, blood flow velocity, hemoglobin concentration and blood glucose concentration, and sends it to the processing module. After processing by the processing module, the data is transmitted to the personal terminal and the display screen (5) in real time. The working process of the display screen (5) is as follows: the device is started by pressing the button (6), the program is started, and the main interface of the detection is displayed. The main interface has user guide, new user, user detection, help options and settings. When the user uses it for the first time, a new user needs to be created, the user's basic information is entered, and then the user detection is clicked to detect the patient. When the detection is performed, the user's test status, fasting or post-meal time needs to be selected. The control circuit board (7) is connected to the mobile APP through the network. When the patient who has not been tested uses it, the basic information of the new user is created and saved. The user information can be directly detected the next time. The newly created basic information is saved synchronously in the device and the mobile APP.

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