An automated drug dispensing and injection device for oral anesthesia

Abstract

This utility model discloses an automatic drug dispensing and injection device for oral anesthesia, belonging to the field of medical auxiliary equipment technology. It includes a handle, a clamping part, and a functional part. The clamping part and the functional part are respectively located at both ends of the handle, and the interiors of the handle, clamping part, and functional part are hollow and interconnected. The clamping part includes a fixed clamping body and a movable clamping body. The fixed clamping body is fixedly connected to the handle, and the movable clamping body can be fastened to the fixed clamping body. The fixed clamping body and the movable clamping body form a placement groove in the hollow space of their interlocking surfaces for placing the syringe. A moving connecting rod is provided inside the functional part and the handle. The side of the moving connecting rod has a toothed surface. The functional part has a motor, and the output end of the motor has a gear that meshes with the toothed surface. This utility model can accurately control the injection dosage, significantly improve the reliability of the anesthetic effect, and effectively reduce the risks caused by inaccurate dosage. It greatly reduces the workload of doctors and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and more specifically, it relates to an automatic drug dispensing and injection device for oral anesthesia. Background Technology

[0002] Local anesthesia, or simply local anesthesia, refers to the temporary blocking of sensory transmission through nerve endings and fibers in a specific area of ​​the body using local anesthetic drugs, thereby eliminating pain in that area. More accurately, it means localized painlessness, meaning that while pain is absent, other sensations such as touch, pressure, and temperature are still present; the patient remains conscious.

[0003] Anesthesia is a crucial step in dental procedures to reduce patient pain. Traditional oral anesthesia injections primarily rely on manual syringes, which have several drawbacks. First, dosage control during manual injection depends entirely on the dentist's experience, making precision difficult and prone to errors such as insufficient dosage leading to poor anesthetic effect or excessive dosage causing adverse reactions. Second, for prolonged or complex dental surgeries, continuous manual injection can cause hand fatigue, affecting the stability and accuracy of the injection. Therefore, developing an oral anesthesia injection device that can precisely control dosage, automatically dispense medication, and is safe and reliable has significant clinical importance. Utility Model Content

[0004] The present invention aims to provide an automatic drug delivery and injection device for oral anesthesia, so as to solve the problems of inaccurate dosage control and easy fatigue of doctors' hands in traditional manual injection methods, and improve the safety and efficiency of oral anesthesia injection.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic drug dispensing and injection device for oral anesthesia, comprising a handle, a clamping part, and a functional part, wherein the clamping part and the functional part are respectively disposed at both ends of the handle, and the handle, clamping part, and functional part are hollow and interconnected; the clamping part includes a fixed clamping body and a movable clamping body, the fixed clamping body being fixedly connected to the handle, and the movable clamping body being able to be fastened to the fixed clamping body; the fixed clamping body and the movable clamping body form a placement groove in the hollow part of their interlocking surfaces for placing a syringe, and the placement groove is provided with a second slot near the handle; a movable connecting rod is provided in the functional part and the handle, the side of the movable connecting rod is provided with a toothed surface, the functional part is provided with a motor, and the output end of the motor is provided with a gear that meshes with the toothed surface; one end of the movable connecting rod extends out of the functional part, and the other end extends through the handle to the clamping part and is provided with a locking element at the end; the handle is provided with a drug dispensing button and an injection button, and the surface of the functional part is provided with a display and control device.

[0006] The present invention is further configured such that: a distance sensor is provided on the card, and a limiting baffle is provided at the connection between the handle and the functional part.

[0007] The method is further configured to calculate the change in the amount of medicine in the syringe by measuring the change in distance between the distance sensor and the limiting baffle.

[0008] The present invention is further configured such that: the fixed clamping body and the movable clamping body are connected by a rotating shaft on the same side, and the fastening surfaces on the other side are respectively provided with matching clips and slots.

[0009] The present invention is further configured such that: the card includes two plates arranged opposite each other, and the edges of the two plates are provided with a semi-enclosed connecting plate for connection; one of the plates is fixedly connected to the moving connecting rod, and the other plate is provided with a U-shaped notch.

[0010] The present invention is further configured such that the display and control device includes a display screen, several function buttons, a charging port, a battery, and a control circuit board.

[0011] Further configuration: The function keys include increase / decrease keys and function switching keys.

[0012] The present invention is further configured such that: the surface of the handle is provided with an anti-slip component, which is an anti-slip silicone sleeve or an anti-slip texture.

[0013] The present invention is further configured such that: an antibacterial pad is provided in the placement groove formed in the hollow part of the interlocking surface of the fixed clamping body and the movable clamping body.

[0014] The present invention is further configured such that: the motor is a high-precision stepper motor, which can accurately control the moving distance of the moving link.

[0015] In summary, this utility model has the following beneficial effects:

[0016] Precise dosage control: With the help of a high-precision stepper motor driving the moving link and a distance sensor for real-time monitoring of the drug dosage, the injection dosage can be precisely controlled, which significantly improves the reliability of the anesthetic effect and effectively reduces the risks caused by inaccurate dosage.

[0017] Automatic medication dispensing and injection: Doctors only need to press the medication dispensing button and the injection button, and the device can automatically complete the medication dispensing and injection process, which greatly reduces the workload of doctors and improves work efficiency, especially suitable for long or complex oral surgeries.

[0018] Safe and reliable: The anti-slip design effectively prevents the device from slipping; the antibacterial pad reduces the risk of infection; the limit baffle and distance sensor work together to ensure that the moving link moves within a safe range, avoiding injury to the patient due to operational errors.

[0019] Easy to operate: The display and control device allows doctors to intuitively understand the working status of the device, making it easy to adjust parameters and switch functions, reducing the difficulty of operation and improving the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the automatic drug dispensing and injection device in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the automatic drug dispensing and injection device in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the automatic drug injection device (after drug administration) in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the functional parts in an embodiment of this utility model.

[0024] In the diagram: 1. Display and control device; 2. Functional unit; 3. Handle; 4. Fixed clamping body; 5. Movable clamping cover; 6. Syringe; 7. Display screen; 8. Function buttons; 9. Dosing button; 10. Injection button; 11. Slot 1; 12. Clamping body; 13. Slot 2; 14. Piston rod; 15. Moving linkage; 16. Limiting baffle; 17. Distance sensor; 18. Clamping element; 19. Gear; 20. Motor. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0026] Example: An automated drug dispensing and injection device for oral anesthesia, such as... Figures 1-4 As shown, it includes a handle part 3, a clamping part and a functional part 2. The clamping part and the functional part 2 are respectively located at both ends of the handle part 3, and the handle part 3, the clamping part and the functional part 2 are hollow and interconnected to form a whole, which facilitates the coordinated work of each component.

[0027] The clamping part includes a fixed clamping body 4 and a movable clamping body. The fixed clamping body 4 is fixedly connected to the handle part 3, and the movable clamping body can be fastened onto the fixed clamping body 4. The fixed clamping body 4 and the movable clamping body form a placement groove in the hollow part of their interlocking surfaces for placing the syringe 6. The placement groove is provided with a second slot 13 near the handle part 3. The functional part 2 and the handle part 3 are provided with a moving connecting rod 15. The side of the moving connecting rod 15 is provided with a toothed surface. The functional part 2 is provided with a motor 20, and the output end of the motor 20 is provided with a gear 19 that meshes with the toothed surface. One end of the moving connecting rod 15 passes through the functional part 2, and the other end passes through the handle part 3 and extends to the clamping part, and is provided with a locking piece 18 at the end. The handle part 3 is provided with a drug dispensing button 9 and an injection button 10. The surface of the functional part 2 is provided with a display and control device 1. The fixed clamping body 4 and the movable clamping body are provided with a rotating shaft on the same side for movable connection, and are respectively provided with a matching locking piece 18 and a first slot 11 on the interlocking surface on the other side. Motor 20 is a high-precision stepper motor, capable of precisely controlling the movement distance of the moving link 15. The movable clamping cover 5 can be made of transparent plastic, glass, or other materials, facilitating observation of the actual amount of liquid in the syringe 6.

[0028] The clip 18 includes two plates arranged opposite each other, with a semi-enclosed connecting plate at the edge of the two plates for connection; one plate is fixedly connected to the moving link 15, and the other plate has a U-shaped notch.

[0029] The display and control device 1 includes a display screen 7, several function buttons 8, a charging port, a battery, and a control circuit board. The function buttons 8 include increase / decrease buttons and function switching buttons.

[0030] The surface of the handle 3 is provided with anti-slip parts, which are anti-slip silicone sleeves or anti-slip textures.

[0031] The clip 18 is equipped with a distance sensor 17, and a limiting baffle 16 is provided at the connection between the handle 3 and the functional part 2. The change in the amount of medicine in the syringe 6 is calculated by measuring the change in distance between the distance sensor 17 and the limiting baffle 16.

[0032] The display and control device 1 includes a display screen 7, several function buttons 8, a charging port, a battery, and a control circuit board. The function buttons 8 include increase / decrease buttons and function switching buttons.

[0033] The prior art shows that the syringe 6 includes a needle, a syringe barrel, a piston that is slidably connected to the inside of the syringe barrel, and a piston rod 14 connected to the piston and acting as a pusher. In use, the end of the piston rod 14 is engaged with the retainer 18, and the ear plates on both sides of the syringe barrel are engaged in the retainer grooves 13 to fix the syringe 6.

[0034] The clamping part includes a fixed clamping body 4 and a movable clamping body. The fixed clamping body 4 is firmly connected to the handle part 3, providing stable support for the syringe 6; the movable clamping body can be fastened to the fixed clamping body 4, facilitating the installation and removal of the syringe 6. A placement groove is formed in the hollow space of the interlocking surfaces of the fixed clamping body 4 and the movable clamping body for placing the syringe 6. A second locking groove 13 is provided near the handle part 3 in the placement groove, which matches the ear plates on both sides of the syringe barrel, effectively fixing the syringe 6 and preventing it from shaking or shifting during use. Simultaneously, the fixed clamping body 4 and the movable clamping body are movably connected on the same side via a pivot, and the interlocking surfaces on the other side are respectively provided with matching clips 18 and locking grooves 11. This design ensures both the flexibility of opening and closing the movable clamping body and enhances the stability of the clamping.

[0035] A movable link 15 is provided within the functional section 2 and the handle section 3, and the movable link 15 has a toothed surface on its side. The functional section 2 is equipped with a motor 20, and the gear 19 at the output end of the motor 20 meshes with the toothed surface of the movable link 15. After the motor 20 is started, the gear 19 rotates, driving the movable link 15 to move within the handle section 3 and the functional section 2. One end of the movable link 15 extends out of the functional section 2, and the other end extends through the handle section 3 to the clamping section. The end clamp 18 is used to cooperate with the syringe 6. The clamp 18 consists of two opposing plates, the edges of which are connected by a semi-enclosed connecting plate, resulting in a stable structure. One plate is fixedly connected to the movable link 15, and the other plate has a U-shaped notch for locking the end of the piston rod 14 of the syringe 6, thus converting the movement of the movable link 15 into pushing the piston rod 14 of the syringe 6, completing the automatic drug dispensing and injection operation. A high-precision stepper motor 20 is used to precisely control the movement distance of the movable link 15, thereby accurately controlling the injection dosage.

[0036] The handle 3 is equipped with a medication dispensing button 9 and an injection button 10, which doctors use to control the medication dispensing and injection process. The display and control device 1 on the surface of the functional unit 2 is a key part of operation, comprising a display screen 7, several function buttons 8, a charging port, a battery, and a control circuit board. The display screen 7 displays the device's operating status in real time, such as current medication dosage, injected medication dosage, remaining medication dosage, and injection speed, allowing doctors to monitor the injection progress. The function buttons 8 include increase / decrease buttons and a function switching button. Doctors can adjust parameters such as injection dosage and speed using the increase / decrease buttons, and switch between different operating modes such as medication dispensing mode, injection mode, and dosage calibration mode using the function switching button. The charging port charges the battery, ensuring a stable power supply to the device; the battery provides power to the entire device; the control circuit board coordinates the operation of various components, receives and processes various signals, and achieves precise control of components such as the motor 20 and the display screen 7.

[0037] A distance sensor 17 is installed on the clamp 18, and a limiting baffle 16 is provided at the connection between the handle 3 and the functional part 2. The distance sensor 17 accurately calculates the change in the amount of medicine in the syringe 6 by measuring the change in distance between itself and the limiting baffle 16, realizing real-time monitoring of the medicine dosage and providing strong support for precise dosage control. The surface of the handle 3 is provided with anti-slip parts, which are made of anti-slip silicone sleeves or anti-slip textures, to increase the friction when the doctor holds the device and prevent the device from slipping due to sweaty hands or other reasons, ensuring operational safety. An antibacterial pad is provided in the placement groove formed by the fixed clamp 4 and the movable clamp 4 to inhibit bacterial growth, reduce the risk of contamination of the syringe 6, and protect the patient's health.

[0038] Working principle: When the doctor presses the medication dispensing button 9, the control circuit board receives a signal and starts the motor 20. The motor 20 drives the gear 19 to rotate, and the gear 19 meshes with the toothed surface of the moving link 15, causing the moving link 15 to move away from the functional part 2. The latch 18 at the end of the moving link 15 pulls the piston rod 14, thereby drawing the medication into the syringe 6. During the medication dispensing process, the distance sensor 17 measures the change in distance between itself and the limit baffle 16 in real time and transmits the data to the control circuit board. The control circuit board calculates the amount of medication drawn based on the distance change and displays it on the display screen 7. For example, when the moving link moves 1 cm, the amount of medication in the syringe changes to 0.1 ml, 0.2 ml, 0.3 ml, 0.5 ml, 1 ml, 2 ml, or 5 ml, etc. When the preset dosage is reached, the doctor releases the medication dispensing button 9, the motor 20 stops rotating, and the medication dispensing process ends.

[0039] During injection, the doctor presses the injection button 10, causing the motor 20 to reverse and move the connecting rod 15 towards the functional unit 2. The locking mechanism 18 pushes the piston rod 14, slowly injecting the medication from the syringe 6 into the patient's mouth. Similarly, the distance sensor 17 monitors the medication volume in real time and displays the injected and remaining medication amounts on the display screen 7. After the injection is complete, the doctor releases the injection button 10, and the motor 20 stops operating.

[0040] Throughout the operation, the doctor can adjust parameters such as injection dosage and speed using the function buttons 8 on the display and control device 1. If it is necessary to switch working modes, this can be done using the function switch button. After the device has been used for a period of time and the battery is low, it can be charged through the charging port.

[0041] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automated drug dispensing and injection device for oral anesthesia, characterized in that: The device includes a handle (3), a clamping part, and a functional part (2). The clamping part and the functional part (2) are respectively located at both ends of the handle (3), and the handle (3), the clamping part, and the functional part (2) are hollow and interconnected. The clamping part includes a fixed clamping body (4) and a movable clamping body. The fixed clamping body (4) is fixedly connected to the handle (3), and the movable clamping body can be fastened to the fixed clamping body (4). The fixed clamping body (4) and the movable clamping body form a placement groove in the hollow part of their interlocking surfaces for placing a syringe (6). The placement groove is close to the handle (3). The device is provided with a slot 2 (13); a moving link (15) is provided in the functional part (2) and the handle part (3), the side of the moving link (15) is provided with a toothed surface, the functional part (2) is provided with a motor (20) and the output end of the motor (20) is provided with a gear (19) that meshes with the toothed surface; one end of the moving link (15) passes through the functional part (2) and the other end passes through the handle part (3) and extends to the clamping part and is provided with a clip (18) at the end; the handle part (3) is provided with a drug addition button (9) and an injection button (10), and the surface of the functional part (2) is provided with a display and control device (1).

2. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The card (18) is provided with a distance sensor (17), and a limiting baffle (16) is provided at the connection between the handle (3) and the functional part (2).

3. An automatic drug dispensing and injection device for oral anesthesia according to claim 2, characterized in that: The change in the amount of medicine in the syringe (6) is calculated by measuring the change in distance between the distance sensor (17) and the limiting baffle (16).

4. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The fixed clamping body (4) and the movable clamping body are connected by a rotating shaft on the same side, and are respectively provided with matching clips (18) and slots (11) on the other side of the fastening surface.

5. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The card (18) includes two plates arranged opposite each other, and the edges of the two plates are connected by a semi-enclosed connecting plate; one of the plates is fixedly connected to the moving connecting rod (15), and the other plate is provided with a U-shaped notch.

6. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The display and control device (1) includes a display screen (7), several function buttons (8), a charging port, a battery, and a control circuit board.

7. An automatic drug dispensing and injection device for oral anesthesia according to claim 6, characterized in that: The function keys (8) include increase / decrease keys and function switching keys.

8. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The surface of the handle (3) is provided with anti-slip material, which is an anti-slip silicone sleeve or anti-slip texture.

9. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The fixed clamping body (4) and the movable clamping body have antibacterial pads in the placement grooves formed in the hollow parts of their interlocking surfaces.

10. An automatic drug dispensing and injection device for oral anesthesia according to claim 1, characterized in that: The motor (20) is a high-precision stepper motor (20), which can accurately control the moving distance of the moving link (15).

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