A device for sampling and monitoring oral microorganisms of periodontitis patients
The oral microbial sampling and monitoring device for periodontitis patients, which uses pressure and displacement sensors in conjunction with the control motherboard, solves the problems of inaccurate sampling point positioning and diabetes data entry, achieving accurate sampling and data synchronization, and improving the treatment effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 长沙市口腔医院
- Filing Date
- 2026-04-24
- Publication Date
- 2026-06-12
AI Technical Summary
Existing methods for sampling oral microorganisms in patients with periodontitis cannot accurately locate sampling points, and there is a bidirectional correlation between diabetes and periodontitis, so diabetes test data needs to be entered simultaneously for subsequent treatment.
A device for sampling and monitoring oral microorganisms in patients with periodontitis is designed. It uses pressure sensors and displacement sensors in conjunction with a control motherboard to achieve precise positioning of the sampling head, and simultaneously records diabetes test data through buttons and a display screen.
It enables precise positioning of periodontal sampling and simultaneous entry of diabetes examination data, improving the accuracy of the sampling process and the integrity of the data, and reducing patient discomfort.
Smart Images

Figure CN122182105A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sampling and monitoring devices, and in particular to a sampling and monitoring device for oral microorganisms in patients with periodontitis. Background Technology
[0002] Currently, the conventional paper point method is commonly used for oral microbial sampling in patients with periodontitis. The specific procedure involves holding one end of a paper point with sterile forceps and gently inserting it parallel to the space between the periodontal pocket wall and the root surface to a predetermined depth, keeping the paper point in close contact with the periodontal pocket wall, and letting it stand for 10-15 seconds. The capillary action of the paper point is then used to collect gingival crevicular fluid and subgingival plaque. The problem with the existing paper point sampling method is that the accuracy of the sampling site is insufficient, that is, it is impossible to accurately guarantee the location of the sampling point PD ≥ 4mm, which affects subsequent treatment.
[0003] Meanwhile, a problem in the current oral treatment process is that there is a two-way relationship between diabetes and periodontitis. Local inflammatory factors in periodontitis can exacerbate insulin resistance and increase glycated hemoglobin levels, while diabetes can aggravate periodontal tissue damage. Therefore, when sampling periodontitis patients with diabetes, their relevant diabetes test data also need to be entered simultaneously for subsequent reference by doctors.
[0004] Based on this, it is necessary to design a device that can simultaneously input diabetes examination data and ensure accurate positioning during periodontal sampling. Summary of the Invention
[0005] This invention provides an oral microbial sampling and monitoring device for patients with periodontitis. By setting up a pressure sensor, a displacement sensor and a control motherboard, it can achieve precise positioning for assisting periodontal sampling. By setting up buttons, a display screen and the control motherboard in conjunction, it can realize the input of relevant sampling data and the patient's diabetes examination data.
[0006] The technical problem solved by this invention is achieved by the following technical solution: This invention provides a device for sampling and monitoring oral microorganisms in patients with periodontitis, comprising a handheld rod. The head of the handheld rod is a hollow tubular head. An annular plate is integrally formed on the inner wall of the tubular head. A guide rod is slidably connected to the center of the annular plate. A movable plate is integrally formed at the bottom of the guide rod. A pressure sensor is fixedly connected to the bottom of the movable plate. A mounting base for mounting a sampling head is fixedly connected to the bottom of the pressure sensor. A spring is disposed outside the guide rod and between the annular plate and the movable plate. A displacement sensor is also disposed inside the tubular head. A control main board is also disposed inside the handheld rod. Both the pressure sensor and the displacement sensor are connected to the control main board. The annular plate is an electromagnet connected to the control main board, and the movable plate is a permanent magnet.
[0007] Preferably, a warning device is also provided on the outside of the handheld stick, and the output terminal of the control motherboard is connected to the warning device. When the pressure sensor detects that the pressure exceeds a set threshold, the control motherboard controls the warning device to operate.
[0008] Preferably, the handheld lever is further provided with a display screen, which is used to display the pressure data of the sampling head and the current insertion depth data.
[0009] Preferably, the handheld lever is provided with a first button group on its exterior. The first button group is connected to the control motherboard, and the output terminal of the control motherboard is connected to the display screen. The first button group, the control motherboard, and the display screen cooperate with each other to record human body examination data.
[0010] Preferably, the sampling head and the mounting base are connected by a plug-in connection. The mounting base includes a threaded mounting body fixedly connected to the pressure sensor and a cylindrical body that is threadedly engaged with the threaded mounting body. A rubber column with a insertion hole is connected to the center of the cylindrical body.
[0011] Preferably, the sampling head and the mounting base are connected by a clamping connection. The mounting base has an insertion hole at its axial center position and a sliding groove in its radial direction. An electromagnet is fixedly connected to one side of the sliding groove, and a permanent magnet is slidably connected to the other side of the sliding groove. A second button group is provided on the hand handle. The second button group is connected to the control main board. The output terminal of the control main board is used to control the magnetic polarity of the electromagnet according to the pressing of the second button group.
[0012] Preferably, the sampling head and the mounting base are connected by adsorption. The mounting base has an insertion hole at its axial center position. An electromagnet connected to the control motherboard is provided at the top of the insertion hole. The sampling head has an adsorbent that can be magnetically attracted at its top.
[0013] Preferably, the tail of the handheld stick is provided with a data cable port for connecting to a terminal.
[0014] The beneficial effects of this invention are: it is equipped with a handheld lever, a displacement sensor and a pressure sensor at the end of the handheld lever, and a control main board inside the handheld lever, thereby being able to calculate the insertion depth of the sampling head during the sampling process and accurately locate the positioning point with PD≥4mm.
[0015] By configuring buttons, display screen, and control motherboard in coordination, it is possible to synchronously record examination data for diabetic patients.
[0016] By setting up an alarm device in conjunction with the control board, it is possible to issue a timely alarm when the applied pressure reaches a set threshold. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the first embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the second embodiment of the present invention; Figure 4 This is a front view of the second embodiment of the present invention; Figure 5 This is a cross-sectional schematic diagram of the third embodiment of the present invention; Figure 6 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 7 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 8 For the present invention Figure 4 A sectional view pointing in the direction of the middle arrow; Figure 9 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D; Figure 11 This is a circuit diagram of the control motherboard for monitoring insertion displacement according to the present invention; Figure 12 This is a schematic diagram showing the connection between the control motherboard and the sampler of the present invention and the tubular head; Figure 13 This is a schematic diagram of the sampling head and sealing tube of the present invention.
[0019] In the diagram: 1. Handheld lever; 2. First button; 3. Display screen; 4. Warning device; 5. Tubular head; 6. Second button; 7. Sampling head; 8. Wire; 9. Data cable connector; 10. Control main board; 11. Tube cavity; 12. Ring plate; 13. Guide rod; 14. Movable plate; 15. Spring; 16. Pressure sensor; 17. Mounting base; 18. Threaded mounting body; 19. Columnar body; 20. Rubber column; 21. Paper rod; 2101. Mounting part; 2102. Insertion part; 2103. Groove; 22. Insertion hole; 23. Electromagnet; 24. Permanent magnet; 25. Sliding groove; 26. Displacement sensor; 27. Adsorption body; 28. Sealing tube; 29. Cap body; 30. Tube body. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.
[0021] This invention provides a device for sampling and monitoring oral microorganisms in patients with periodontitis, with reference to... Figure 1The microbial sampling and monitoring device generally includes a handheld rod 1. The head of the handheld rod 1 is a hollow tubular head 5, and the hollow interior forms a cavity 11. The cavity 11 is used to install other components and detachably connect to the sampling head 7. Specifically, an annular plate 12 (an electromagnet connected to the control main board 10, which repels the movable plate 14 described below when energized; the movable plate 14 is a magnetic object) is integrally formed on the inner wall of the cavity 11 inside the tubular head 5. A guide rod 13 is slidably connected at the center of the annular plate 12. The bottom of the guide rod 13 is integrally formed with the movable plate 14. A pressure sensor 16 is fixedly connected to the bottom of the movable plate 14. A mounting base 17 for mounting the sampling head 7 is connected. A spring 15 is installed outside the guide rod 13 between the ring plate 12 and the movable plate 14. The two ends of the spring 15 are connected to the ring plate 12 and the movable plate 14 respectively. A displacement sensor 26 is also installed inside the tubular head 5. A control main board 10 is also installed inside the handheld rod 1. Both the pressure sensor 16 and the displacement sensor 26 are connected to the control main board 10. In use, the sampling head 7 is mounted on the mounting base 17 and inserted into the periodontal pocket. The insertion depth is monitored in real time by the pressure sensor 16 and the displacement sensor 26. When in use, the sampling head 7 is first placed at the opening of the periodontal pocket (the junction of the gingival margin and the tooth surface) to trigger zero-position calibration. Keep the handheld lever still, then energize the ring plate 12 (controlled by a button connected to the control main board 10), causing it to repel the movable plate 14. The movable plate 14 then moves away from the ring plate 12, stretching the spring 15 and driving the sampling head 7 into the periodontal pocket. The displacement sensor 26 records the relative movement distance between the ring plate 12 and the movable plate 14. During insertion, the data from the pressure sensor 16 will never exceed the threshold; the monitored data represents the resistance during insertion. When the data from the pressure sensor 16 reaches the threshold, the displacement is the insertion depth. Maintain the current of the ring plate 12 at its current value for 20-30 seconds (the sampling head 7 uses paper tip sampling, utilizing capillary action). (Using adsorption) to keep the sampling head stationary. After sampling, the current in the ring plate 12 is removed, and the spring 15 resets, thus driving the sampling head 7 to be pulled out of the periodontal pocket. The specific principle can be referred to the principle of existing electronic periodontal probes, which are used to measure the depth of the probe inserted into the periodontal pocket. In order to enable those skilled in the art to understand the principle, it is briefly described here. When the sampling head 7 is not inserted, the displacement sensor 26 returns to zero, and the pressure sensor 16 records the initial environmental pressure. When the medical staff places the sampling head 7 against the opening of the periodontal pocket, the displacement sensor 26 is triggered to start counting and outputs L1 in real time as the displacement output. When the tip of the sampling head 7 touches the bottom of the periodontal pocket, the data of the pressure sensor 16 rises rapidly to 0.5-1.At the calibrated threshold of 0 N, the system triggers a "bottoming-out determination." At this point, the L1 measured by displacement sensor 26 is not the final depth and needs to be corrected based on the pressure stabilization time. If the pressure remains stable for 0.2-0.5 seconds, it is considered a valid bottoming-out, and the insertion depth at this time is L1. If the pressure momentarily exceeds the threshold and then falls back, it is considered a false bottoming-out, and the system automatically deducts the rebound displacement, typically 0.2-0.5 mm, before outputting the displacement.
[0022] Furthermore, such as Figure 11 To prevent personnel from continuing to apply pressure after the sampling head 7 has reached the bottom, which could cause pain to the patient, a warning device 4 is also provided on the outside of the handheld rod 1. The output terminal of the control motherboard 10 is connected to the warning device 4. When the pressure sensor 16 detects that the pressure exceeds the set threshold, the control motherboard 10 controls the warning device 4 to operate. Specifically, the warning device 4 can be a warning light or a buzzer. That is, after the control motherboard 10 determines that the bottom has been reached, it controls the corresponding warning light to light up or controls the corresponding buzzer to sound to provide a reminder.
[0023] Furthermore, a display screen 3 is also provided on the outside of the handheld lever 1. The display screen 3 is used to display the pressure data of the sampling head 7 and the current insertion depth data, so that the personnel can intuitively view the sampling pressure data and insertion depth data during sampling.
[0024] Furthermore, the handheld lever 1 is equipped with a first set of buttons 2 on its exterior. The first set of buttons 2 is connected to the control motherboard 10, and the output of the control motherboard 10 is connected to the display screen 3. The first set of buttons 2, the control motherboard 10, and the display screen 3 work together to record human examination data. That is, this oral microbial sampling and monitoring device can not only record data of the sampling process through sensors, but also, if the periodontitis patient also has diabetes, the examination data of the diabetic patient can be entered through the cooperation of the first set of buttons 2 and the display screen 3, which is convenient for doctors to carry out targeted treatment later. There is a data cable plug at the end of the handheld lever 1, which can be connected to an external terminal through the wire 8 to realize data transmission and entry.
[0025] To enable those skilled in the art to understand the detachable connection between the sampling head 7 and the mounting base 17, various embodiments of the detachable connection are given below, such as... Figure 2 and Figure 6As shown, the sampling head 7 and the mounting base 17 are connected by a plug-in connection. The mounting base 17 includes a threaded mounting body 18 fixedly connected to the pressure sensor 16 and a cylindrical body 19 threadedly engaged with the threaded mounting body 18. A rubber column 20 with an insertion hole 22 is connected to the center of the cylindrical body 19. In use, the cylindrical body 19 is first threadedly mounted on the threaded mounting body 18. When in use, the mounting part 2101 of the sampling head 7 is inserted into the insertion hole 22. The mounting part 2101 is stabilized in the insertion hole 22 by the clamping force of the deformation of the rubber column 20, thus realizing the plug-in connection.
[0026] Specifically, such as Figure 3 , Figure 7 and Figure 8 and Figure 12 As shown, the sampling head 7 and the mounting base 17 are connected by a clamping connection. The mounting base 17 has an insertion hole 22 at its axial center and a sliding groove 25 in its radial direction. An electromagnet 23 is fixedly connected to one side of the sliding groove 25, and a permanent magnet 24 is slidably connected to the other side. A second set of buttons 6 is provided on the handle 1, which is connected to the control main board 10. The output of the control main board 10 is used to control the magnetic polarity of the electromagnet 23 according to the pressing of the second set of buttons 6. In use, first... The mounting part 2101 of the sampling head 7 is inserted into the socket 22. Then, by operating the second set of buttons 6, the electromagnet 23 is made to generate magnetism. At this time, the magnetism can attract the permanent magnet 24, thereby clamping the sampling head 7 between the electromagnet 23 and the permanent magnet 24 to ensure its firmness. When it is necessary to remove the sampling head 7, by operating the second set of buttons 6, the electromagnet 23 generates a polarity that repels the permanent magnet 24. At this time, the permanent magnet 24 slides to the other end of the sliding groove 25, that is, away from the permanent magnet 24, thereby detaching from the clamping of the sampling head.
[0027] Specifically, such as Figure 5 , Figure 9 and Figure 10 As shown, the sampling head 7 and the mounting base 17 are connected by adsorption. The mounting base 17 has an insertion hole 22 at its axial center. An electromagnet 23 connected to the control motherboard 10 is provided on the top of the insertion hole 22. The top of the sampling head 7 is provided with an adsorbent 27 that can be magnetically attracted. In use, by operating the second button group 6, the electromagnet 23 becomes magnetic and can attract the adsorbent 27 on the top of the sampling head 7, thereby stabilizing the sampling head 7 in the insertion hole 22. When it is necessary to remove the sampling head 7, the electromagnet 23 loses its magnetism by operating the second button group 6, and the sampling head 7 can be removed.
[0028] It should be further explained that, such as Figure 13As shown, the sampling head 7 of the present invention uses the traditional paper tip sampling method for sampling. The main body of the sampling head 7 is a paper rod 21, including a thicker mounting part 2101 and a thinner insertion part 2102. The insertion part 2102 also has a break groove 2103 to facilitate the breakage of the insertion part 2102. After sampling, the insertion part 2102 can be placed inside the sealing tube 28. The sealing tube 28 has a built-in heat insulation layer, which is suitable for low-temperature storage. The sealing tube 28 includes a tube body 30 and a cap body 2, and the tube body 30 and the cap body 2 are connected by threads.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A device for sampling and monitoring oral microorganisms in patients with periodontitis, comprising a handheld rod (1) body, wherein the head of the handheld rod (1) body is a hollow tubular head (5), characterized in that, An annular plate (12) is integrally formed on the inner wall of the tubular head (5). A guide rod (13) is slidably connected to the center of the annular plate (12). A movable plate (14) is integrally formed at the bottom of the guide rod (13). A pressure sensor (16) is fixedly connected to the bottom of the movable plate (14). A mounting base (17) for installing the sampling head (7) is fixedly connected to the bottom of the pressure sensor (16). A spring (15) is provided outside the guide rod (13) and between the annular plate (12) and the movable plate (14). A displacement sensor (26) is also provided inside the tubular head (5). A control main board (10) is also provided inside the handheld rod (1). The pressure sensor (16) and the displacement sensor (26) are both connected to the control main board (10). The annular plate (12) is an electromagnet connected to the control main board (10). The movable plate (14) is a permanent magnet.
2. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The handheld lever (1) is also equipped with a warning device (4) on its exterior. The output end of the control motherboard (10) is connected to the warning device (4). When the pressure sensor (16) detects that the pressure exceeds the set threshold, the control motherboard (10) controls the warning device (4) to run.
3. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The handheld lever (1) is also equipped with a display screen (3) on its exterior, which is used to display the pressure data of the sampling head (7) and the current insertion depth data.
4. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The handheld lever (1) is provided with a first button (2) group on the outside. The first button (2) group is connected to the control motherboard (10). The output end of the control motherboard (10) is connected to the display screen (3). The first button (2) group, the control motherboard (10) and the display screen (3) cooperate with each other to record human body examination data.
5. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The sampling head (7) and the mounting base (17) are connected by a plug-in connection. The mounting base (17) includes a threaded mounting body (18) fixedly connected to the pressure sensor (16) and a columnar body (19) threadedly engaged with the threaded mounting body (18). A rubber column (20) with a socket (22) is connected to the center of the columnar body (19).
6. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The sampling head (7) and the mounting base (17) are connected by a clamping connection. The mounting base (17) has an insertion hole (22) at its axial center position and a sliding groove (25) in the radial direction. An electromagnet (23) is fixedly connected to one side of the sliding groove (25) and a permanent magnet (24) is slidably connected to the other side of the sliding groove (25). A second set of buttons (6) is provided on the hand lever (1). The second set of buttons (6) is connected to the control motherboard (10). The output end of the control motherboard (10) is used to control the magnetic polarity of the electromagnet (23) according to the pressing of the second set of buttons (6).
7. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The sampling head (7) and the mounting base (17) are connected by adsorption. The mounting base (17) has an insertion hole (22) at its axial center position. An electromagnet (23) connected to the control motherboard (10) is provided on the top of the insertion hole (22). An adsorbent (27) that can be magnetically attracted is provided on the top of the sampling head (7).
8. The oral microbial sampling and monitoring device for patients with periodontitis according to claim 1, characterized in that, The tail of the handheld stick (1) is provided with a data cable port (9) for connecting to a terminal.