Liftable noninvasive blood glucose collection device

Abstract

The utility model discloses a liftable noninvasive blood glucose collection device, including blood glucose collection device skeleton, top shell, back shell, collection module and lifting module, blood glucose collection device skeleton is connected with back shell and top shell respectively to form the complete shell, collection module includes PPG signal detection port, PPG sensor installation groove and glass sheet installation groove, the glass sheet installation groove is equipped with the PPG signal detection port, PPG sensor installation groove and glass sheet installation groove. The lifting module is arranged on one side of the PPG signal detection port in the blood glucose collection device framework, the lifting module comprises a PPG sensor upper cover, a motor platform, a motor, a first gear, a second gear and a lifting gear, and the motor is meshed with the lifting gear through the second gear to drive the PPG sensor upper cover to move up and down. According to the blood glucose detection device, constant clamping pressure can be applied to fingers of a patient through the lifting module, and the stability and accuracy of blood glucose detection are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a liftable non-invasive blood glucose collection device. Background Technology

[0002] With the rapid development of modern medical technology and the increasing awareness of health management, non-invasive testing technology has become a research hotspot in the field of health data collection. Traditional blood glucose testing methods mostly require blood sampling, which not only brings pain and infection risks but also increases the psychological burden and inconvenience for patients. In contrast, non-invasive blood glucose testing technology has the advantages of being non-invasive, convenient, and highly repeatable, and therefore has attracted much attention. Photoplethysmography (PPG) is a non-invasive detection technology based on optical signals. By illuminating the skin surface with a light source and detecting changes in the reflection or transmission of light in the blood, PPG can record the dynamic characteristics of blood flow in real time and is commonly used for heart rate, blood oxygen saturation, and pulse wave acquisition. In recent years, research has found that PPG signals contain information related to blood glucose levels, and this information can be extracted using specific algorithms, providing technical support for non-invasive blood glucose testing.

[0003] Current finger clip and flip-top devices on the market still have many problems, limiting their widespread application and user experience optimization. The blood flow in the finger is easily affected by external factors such as temperature, pressure, and movement, leading to large signal fluctuations and unstable data. Differences in skin thickness and blood vessel distribution affect the penetration depth and quality of optical signals, potentially causing measurement errors. For elderly users or those with thicker fingers, the device size and clamping force are often not well-suited, resulting in large signal fluctuations and unstable data. Furthermore, their ability to shield against ambient light is limited, leading to significant signal interference in outdoor or complex lighting environments, affecting measurement accuracy. Additionally, the finger clip mechanical structure of finger clip blood glucose monitoring devices can easily cause problems such as loosening of the support structure after prolonged use. Summary of the Invention

[0004] To address the issues of existing blood glucose monitoring devices lacking adaptability in terms of size and clamping force due to variations in user fingers, and having poor shielding capabilities against ambient light, this invention proposes a liftable non-invasive blood glucose monitoring device. This device can shield against external light sources, eliminate environmental interference, and maintain a constant clamping force on the user's fingers, resulting in more accurate and stable blood glucose measurements.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a liftable non-invasive blood glucose monitoring device, comprising a blood glucose monitoring device frame, a top shell, a rear shell, a monitoring module, and a lifting module. The blood glucose monitoring device frame is connected to the rear shell and the top shell to form a complete outer shell. The monitoring module includes a PPG signal detection port, a PPG sensor mounting slot, and a glass slide mounting slot. The PPG signal detection port is located on the blood glucose monitoring device frame opposite to the rear shell and penetrates through the blood glucose monitoring device frame. The PPG sensor mounting slot is located inside the blood glucose monitoring device frame directly below the signal detection port. The glass slide mounting slot is located between the PPG sensor mounting slot and the PPG signal detection port. The lifting module is located inside the blood glucose monitoring device frame on one side of the PPG signal detection port.

[0006] PPG stands for Optical Volumetric Recording, a non-invasive detection technique based on optical signals.

[0007] Furthermore, the lifting module includes a PPG sensor cover, a motor platform, a motor, a first gear, a second gear, and a lifting gear. The lifting gear is fixed on the blood glucose collection device frame. The motor is fixed on the motor platform. The motor platform is fixedly connected to the second gear. The second gear meshes with the lifting gear. The motor is fixedly connected to the first gear. The first gear meshes with both the second gear and the lifting gear. The PPG sensor cover is fixedly connected to the motor.

[0008] Furthermore, the motor is provided with a first fixing rod, and the first gear is fixed on the first fixing rod;

[0009] The PPG sensor cover has a fixing hole at one end that matches the first fixing rod, and the PPG sensor cover is fixed to the first fixing rod through the fixing hole;

[0010] The motor platform is provided with a second fixed rod, and the second gear is sleeved on the second fixed rod and can rotate about the second fixed rod as an axis.

[0011] Furthermore, the lifting module also includes a limiting rod. The PPG sensor cover has a first limiting hole, and the motor platform has a second limiting hole. One end of the limiting rod is inserted into the first limiting hole and connected to the PPG sensor cover, and the other end is inserted into the second limiting hole and connected to the motor platform.

[0012] The installation sequence of the lifting module is as follows: First, install the first gear on the first fixed rod and the second gear on the second fixed rod. Then, insert the first fixed rod into the fixing hole of the PPG sensor cover to fix the PPG sensor cover. After that, mesh the first gear and the second gear with the lifting gear. Then, insert the two ends of the limiting rod into the first limiting hole and the second limiting hole respectively to tightly mesh the lifting gear, the first gear, and the second gear together, restricting the motor platform and the PPG sensor cover to move only up and down along the lifting gear and not left and right.

[0013] The lifting gear can be integrally formed with the blood glucose collection device frame, or it can be fixedly connected to the blood glucose collection device frame by welding, bolting, snap-fitting, etc. Space is left between the lifting gear and the side wall of the blood glucose collection device frame for the installation of the limit rod and for vertical movement.

[0014] The lifting gear can be connected to the side wall of the blood glucose sampling device frame via a connecting device, or it can be directly fixed to the bottom of the blood glucose sampling device frame.

[0015] Furthermore, a pressure sensor mounting slot is provided on the lower side of the other end of the PPG sensor cover. The pressure sensor mounting slot corresponds to the PPG sensor mounting slot and is used to install the pressure sensor.

[0016] Furthermore, the acquisition module also includes a baffle groove and a baffle. The baffle groove is located directly below the PPG sensor mounting slot, and the baffle is installed in the baffle groove. When the baffle is installed in the baffle groove, its height is not lower than the glass plate mounting slot.

[0017] Furthermore, the upper end of the blood glucose collection device frame is provided with a slide rail groove, and the top cover is provided with flanges on both sides. The flanges can be installed in the slide rail groove and move along the slide rail groove.

[0018] Furthermore, the top cover is also equipped with a display screen, which is fixedly connected to the top cover.

[0019] Furthermore, the rear shell is provided with multiple screw holes, and the blood glucose collection device frame is provided with a first mounting hole corresponding to the screw holes. The rear cover is fixed to the blood glucose collection device frame through the screw holes and the first mounting hole.

[0020] Furthermore, a power supply notch is provided on the rear shell for the power cord to supply power to the non-invasive blood glucose collection device.

[0021] Furthermore, the base plate inside the skeleton of the blood glucose collection device has multiple second mounting holes for fixing the motherboard, which is connected to the display screen, PPG sensor module and motor respectively.

[0022] Furthermore, the blood glucose collection device also has an LED light inside its frame to provide a stable light source for blood glucose collection.

[0023] The beneficial effects of this utility model are:

[0024] 1. By setting up a lifting module inside the non-invasive blood glucose collection device, the PPG sensor cover can be moved up and down to adapt to the finger conditions of all users. A pressure sensor is set at the contact position between the PPG sensor cover and the finger to accurately sense the contact pressure with the finger, so that fingers of different thicknesses can maintain the same clamping force, ensuring the stability and accuracy of blood glucose detection.

[0025] 2. The blood glucose acquisition module is located in a relatively enclosed space and uses an internal light source to reduce interference from the external environment, reduce signal fluctuations, and make the acquired data more stable. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0027] Figure 1 This is a structural diagram of the non-invasive blood glucose collection device of this utility model;

[0028] Figure 2 This is a structural diagram of the lifting module of this utility model;

[0029] Figure 3 This is another reverse structural diagram of the lifting module of this utility model;

[0030] Figure 4 This is a structural diagram of the internal data acquisition module of this utility model;

[0031] Figure 5 This is a top view of the internal structure of the blood glucose collection device of this utility model;

[0032] Figure 6 This is a structural diagram of the rear shell of this utility model.

[0033] The components include: 1. Blood glucose collection device frame; 11. Top shell; 111. Display screen; 112. Flange; 12. Rear shell; 121. Power supply notch; 122. Screw hole; 13. Top slide rail groove; 14. First mounting hole; 15. Second mounting hole; 2. Collection module; 21. PPG signal detection port; 22. PPG sensor mounting slot; 23. Glass plate mounting slot; 24. Baffle groove; 25. Baffle; 3. Lifting module; 31. PPG sensor top cover; 311. Pressure sensor mounting slot; 312. Fixing hole; 313. First limiting hole; 32. Motor platform; 321. Second fixing post; 322. Second limiting hole; 33. Motor; 331. First fixing post; 34. First gear; 35. Second gear; 36. Lifting gear column; 37. Limiting rod. Detailed Implementation

[0034] The following will refer to the appendix in the embodiments of this utility model. Figures 1 to 5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Reference Figure 1 and Figure 2 As shown, the present invention provides a liftable non-invasive blood glucose collection device, including a blood glucose collection device frame 1, a top shell 11, a rear shell 12 and a lifting module 3. The blood glucose collection device frame 1 is used to support the internal components, and the blood glucose collection device frame 1, the top shell 11 and the rear shell 12 are adapted to form a complete outer shell.

[0036] The upgraded structure 3 includes a PPG sensor cover 31, a pressure sensor mounting slot 311, a fixing hole 312, a motor platform 32, a second fixing column 321, a motor 33, a first fixing column 331, a first gear 34, a second gear 35, and a lifting gear 36.

[0037] The lifting gear 36 is fixed inside the blood sample collection device frame 1, and the motor 33 is fixed on the motor platform 32;

[0038] The motor platform is provided with a second fixed column 321, and a second gear 35 is mounted on the second fixed column 321. The second gear 35 meshes with the lifting gear 36.

[0039] The motor is provided with a first fixed post 331, and a first gear 34 is fixedly connected to the first fixed post 331. The first gear 34 meshes with a second gear 35 and a lifting gear 36 respectively.

[0040] A fixing hole 312 is provided at one end of the sensor cover 31. The first fixing post 331 of the motor 33 is inserted into the fixing hole 312 and fixedly connected to the sensor cover 31. A pressure sensor mounting groove 311 is provided on the lower side of the other end of the sensor cover 31. The pressure sensor plate is installed in the pressure sensor mounting groove 311.

[0041] Reference Figure 3 As shown, a limiting rod 37 is also provided. The PPG sensor cover 31 has a first limiting hole 313, and the motor platform 32 has a second limiting hole 322. One end of the limiting rod 37 is inserted into the first limiting hole 313 and connected to the PPG sensor cover 31, and the other end is inserted into the second limiting hole 322 and connected to the motor platform 32, so that the lifting gear 36 is tightly meshed with the first gear 34 and the second gear 35 respectively.

[0042] In this embodiment, the lifting gear 36 is fixedly connected to the bottom of the blood sample collection device frame 1, and a space is left between the lifting gear 36 and the side wall of the blood sample collection device frame 1 for the installation and vertical movement of the limiting rod 37.

[0043] The upper end of the blood glucose collection device frame 1 has slide rail grooves 13 on both sides, and the top shell 11 has flanges 112 on both sides. The top cover 11 is inserted into the slide rail grooves 13 through the flanges 112 and fixed to the blood glucose collection device frame 1.

[0044] The display screen 111 is fixed on the top shell 11 and is used to display the blood glucose data of the collector.

[0045] Reference Figure 4 As shown, a PPG signal detection port 21 is provided on the side of the blood glucose collection device frame 1 away from the rear shell 12. The PPG signal detection port 21 passes through the blood glucose collection device frame 1. A PPG sensor mounting slot 22 is provided on one side of the inner wall of the blood glucose collection device frame 1. The PPG sensor mounting slot 22 is located directly below the signal detection port 21. A glass plate mounting slot 23 is provided between the PPG sensor mounting slot 22 and the signal detection port 21.

[0046] PPG sensor mounting slot 22 is used to insert the PPG sensor module, and glass plate mounting slot 23 is used to insert a 1mm glass plate. The purpose of inserting the glass plate is to prevent the user's fingers from touching the PPG sensor module circuit and affecting the accuracy of the data.

[0047] A baffle groove 24 is provided directly below the PPG sensor mounting slot 22. The baffle 25 can be inserted into the baffle groove 24, and when the baffle 25 is inserted into the baffle groove 24, its height is higher than the glass plate, which can fix the glass plate and the PPG sensor module. The purpose is to prevent the glass plate and the PPG sensor from moving, and to prevent the collector from moving the glass plate when inserting their finger during blood glucose testing.

[0048] The acquisition module 2 consists of the PPG signal detection port 21, the PPG sensor mounting slot 22, the glass plate mounting slot 23, and the baffle 25.

[0049] Reference Figure 5 As shown, the main control board of the non-invasive blood glucose collection device is fixed to the bottom of the blood glucose collection device frame 1 through the second mounting hole 15. The main control board is connected to the display screen 111, the PPG sensor module, and the motor 33 respectively.

[0050] Reference Figure 6 As shown, a power supply notch 121 is provided on the rear shell 12, and the power cord is connected to the main control board through the power supply notch 121 to supply power to the non-invasive blood glucose collection device.

[0051] The rear cover 12 has four screw holes 122, and the blood glucose collection device frame 1 has a first mounting hole 14 corresponding to the screw holes 122. The rear cover 12 is fixed to the blood glucose collection device frame 1 through the screw holes 122 and the first mounting hole 15.

[0052] The blood glucose collection device frame 1 is also equipped with an LED light inside to provide a stable light source for blood glucose collection.

[0053] The usage process of the liftable non-invasive blood glucose monitoring device in this embodiment is as follows:

[0054] When it is necessary to collect the patient's blood glucose data, the motor 33 controls the PPG sensor cover 31 to rise, the patient's finger is placed into the PPG signal detection port 21 and pressed on the glass plate, the motor 33 controls the PPG sensor cover 31 to fall and press on the patient's finger, the pressure sensor on the PPG sensor cover 31 monitors the contact pressure between the cover and the finger, when the contact pressure reaches the set value, the PPG sensor cover 31 stops falling, the PPG sensor module starts to collect the patient's blood glucose and displays the collected data on the display screen 111.

[0055] After blood glucose collection is completed, motor 33 drives the PPG sensor cover 31 to rise, allowing the patient's finger to leave the PPG signal detection port 21.

[0056] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not limiting. Those skilled in the art can make many specific modifications under the guidance of the present invention without departing from the spirit of the invention and the scope of protection of the claims, and these modifications all fall within the protection scope of the present invention.

Claims

1. A non-invasive blood glucose collection device that is portable, characterized in that: The blood glucose collection device skeleton, the top shell, the rear shell, the collection module and the lifting module, the blood glucose collection device skeleton is connected with the rear shell and the top shell respectively to form a complete shell, the collection module includes a PPG signal detection port, a PPG sensor mounting groove and a glass sheet mounting groove, the PPG signal detection port is located on the opposite side of the rear shell of the blood glucose collection device skeleton and penetrates the blood glucose collection device skeleton, the PPG sensor mounting groove is opened in the inside of the blood glucose collection device skeleton below the PPG signal detection port, the glass sheet mounting groove is opened between the PPG sensor mounting groove and the PPG signal detection port, and the lifting module is arranged on one side of the PPG signal detection port inside the blood glucose collection device skeleton.

2. The blood glucose collection device according to claim 1, wherein: The lifting module includes a PPG sensor upper cover, a motor platform, a motor, a first gear, a second gear and a lifting gear, the lifting gear is fixed on the blood glucose collection device skeleton, the motor is fixed on the motor platform, the motor platform is fixedly connected with the second gear, the second gear is engaged with the lifting gear, the motor is fixedly connected with the first gear, the first gear is engaged with the second gear and the lifting gear respectively, and the PPG sensor upper cover is fixedly connected with the motor.

3. The blood glucose collection device according to claim 2, wherein: The motor is provided with a first fixed rod, and the first gear is fixed on the first fixed rod; One end of the PPG sensor upper cover is provided with a fixed hole matched with the first fixed rod, and the PPG sensor upper cover is fixed on the first fixed rod through the fixed hole; The motor platform is provided with a second fixed rod, and the second gear is sleeved on the second fixed rod and can rotate with the second fixed rod as the shaft.

4. The blood glucose collection device according to claim 3, wherein: The lifting module further includes a limiting rod, the PPG sensor upper cover is provided with a first limiting hole, the motor platform is provided with a second limiting hole, one end of the limiting rod is inserted into the first limiting hole and connected with the PPG sensor upper cover, and the other end of the limiting rod is inserted into the second limiting hole and connected with the motor platform.

5. The blood glucose collection device according to claim 4, wherein: The other end of the PPG sensor upper cover is provided with a pressure sensor mounting groove on the lower side, the pressure sensor mounting groove corresponds to the PPG sensor mounting groove and is used for installing a pressure sensor.

6. The blood glucose collection device according to claim 5, wherein: The collection module further includes a baffle groove and a baffle, the baffle groove is arranged below the PPG sensor mounting groove, the baffle is installed in the baffle groove, and when the baffle is installed in the baffle groove, the height of the baffle is not lower than the glass sheet mounting groove.

7. The blood glucose collection device of claim 6, wherein: The upper end of the blood glucose collection device skeleton is provided with a sliding rail groove, the top shell is provided with a flange on both sides, and the flange can be installed in the sliding rail groove and move along the direction of the sliding rail groove.

8. The blood glucose collection device of claim 7, wherein: The top shell is further provided with a display screen, and the display screen is fixedly connected with the top shell.

9. The blood glucose collection device of claim 8, wherein: The rear shell is provided with a plurality of screw holes and a power supply gap, the blood glucose collection device skeleton is provided with a first mounting hole corresponding to the screw hole, the rear shell is fixed with the blood glucose collection device skeleton through the screw hole and the first mounting hole, and the power supply gap is used for the power supply line of the non-invasive blood glucose collection device.

10. The blood glucose collection device of claim 9, wherein: A plurality of second mounting holes are opened on the inner bottom plate of the blood glucose collection device skeleton, the second mounting holes are used for fixing a mainboard, and the mainboard is connected with a display screen, a PPG sensor module and a motor respectively.

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