Handheld tooth and pulp aspirator

Abstract

The utility model relates to the technical field of dentistry, in particular to a handheld tooth and dental pulp aspirator which comprises a handheld part, a shell is arranged on the right side of the handheld part, an adjusting assembly is arranged between the handheld part and the shell, a needle is arranged on the right side of the shell, a threaded sleeve is fixedly connected to the left side of the needle, and the threaded sleeve is fixedly connected to the right side of the shell. A threaded groove matched with the threaded sleeve is formed in the right side of the shell. The dental pulp extracting device has the advantages of being adjustable in extracting angle and convenient to operate, in the actual using process, an electric telescopic rod driving mode is adopted, compared with a traditional manual pushing mode, the electric telescopic rod effectively avoids fatigue or shaking possibly generated when a doctor extracts dental pulp manually, and therefore the stability and accuracy of operation are improved, and the operating efficiency is improved. The workload of doctors can be relieved, and the risk of misoperation is reduced; secondly, under the action of the adjusting assembly, the doctor can easily adjust the angle of the needle head according to the specific conditions of the patient and the operation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of dentistry, in particular to a handheld dental pulp aspirator. Background Art

[0002] Dentistry is one of the medical disciplines, mainly treating diseases related to teeth and periodontium. In large hospitals, dentistry is usually incorporated into the oral department. Dentistry involves a wide range of diseases and treatments.

[0003] For example, the dental pulp aspirator with the publication number CN116549146A, after the patient's mouth is opened, the upper and lower clamps on the tooth fixing mechanism move through the connecting axis, the upper and lower clamps close, and the fixed teeth on the upper and lower clamps fix the patient's teeth. The suction needle is aimed at the damaged caries, and the medical staff then pulls the handle, which in turn pulls the connecting bracket, which then moves inside the syringe. Using the negative pressure principle, the first and second return suction tubes generate adsorption force, and the dental pulp is extracted by suction through the suction needle. 2. In this invention, the medical staff holds the aspirator body, determines the position of the tooth damaged by caries, and pulls the expansion rod on the expansion mechanism. The expansion rod deflects with the movable axis as the base point, and the two sets of relative expansion rods then expand outward to support the patient's mouth, preventing the patient from involuntary cavity closure after opening the mouth for a long time, which affects the treatment process. However, the angle of the suction needle in the above patent is fixed. Specifically, the doctor cannot adjust the inclination or angle of the needle without changing the syringe, but needs to rely on the flexibility of his or her wrist to indirectly adjust the angle. This reliance on manual adjustment not only increases the complexity and difficulty of the operation, but may also lead to inconsistency in the operation results due to differences in personal skill levels, thereby affecting the treatment effect and patient comfort. In addition, the patent adopts a method of manually pushing or pulling the connecting bracket during the process of aspirating the dental pulp. Although this manual operation mode reflects the intuitiveness and controllability of the operation to a certain extent, it also exposes some significant disadvantages. Manual pushing requires a large force output, and long-term operation can easily cause doctor's hand fatigue, affecting work efficiency and operation stability. Utility Model Content

[0004] The purpose of the present utility model is to provide a handheld dental pulp aspirator, which has the advantages of adjustable extraction angle and easy operation, and solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a handheld dental pulp aspirator, comprising: a handheld part, a shell is provided on the right side of the handheld part, an adjustment component is provided between the handheld part and the shell, a needle is provided on the right side of the shell, a threaded sleeve is fixedly connected to the left side of the needle, and a threaded groove adapted to the threaded sleeve is provided on the right side of the shell.

[0006] An electric telescopic rod is fixedly connected to the left side of the inner cavity of the shell, and a rubber plug is fixedly connected to the output end of the electric telescopic rod. The rubber plug is slidably connected to the inner wall of the shell and the needle. A positioning block is fixedly connected to the surface of the electric telescopic rod, and the surface of the positioning block is fixedly connected to the shell.

[0007] The adjustment assembly includes two guide frames fixedly connected to the right side of the handheld part, and the opposite sides of the two guide frames are commonly fixedly connected to a loading block, the surface of the loading block is fixedly connected to a worm gear, the left side of the shell is fixedly connected to a load-bearing plate, the left side of the load-bearing plate is fixedly connected to an outer shell, the inner cavity of the outer shell is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a worm, and the worm is meshed with the worm gear, a guide hole is opened on one side of the guide frame, the inner cavity of the guide hole is slidably connected to a guide block, and one side of the guide block is fixedly connected to the load-bearing plate.

[0008] Furthermore, as a preferred embodiment of the present invention, anti-slip grooves are provided on the left side of the surface of the handle.

[0009] Furthermore, as a preferred embodiment of the present invention, the surface of the shell is provided with through holes, and the number of the through holes is several.

[0010] Furthermore, as a preferred embodiment of the present invention, a placement groove is provided on one side of the housing and the needle, and a rubber ring is provided in the inner cavity of the placement groove.

[0011] Furthermore, as a preferred embodiment of the present invention, two receiving slots are provided on the right side of the handle.

[0012] Furthermore, as a preferred embodiment of the present invention, the rear end of the worm is rotatably connected to a support plate, and one side of the support plate is fixedly connected to a bearing plate.

[0013] Beneficial effects: The technical solution of this application has the following technical effects: the utility model has the advantages of adjustable extraction angle and easy operation. In actual use, an electric telescopic rod drive method is adopted. Compared with the traditional manual push method, the electric telescopic rod effectively avoids the fatigue or shaking that may be caused by the doctor manually extracting the pulp, thereby improving the stability and accuracy of the operation, which can reduce the doctor's workload and reduce the risk of operational errors; secondly, under the action of the adjustment component, the doctor can easily adjust the angle of the needle according to the patient's specific situation and surgical needs. This flexibility makes the pulp extraction process more convenient, can better adapt to the requirements of different cases, and improves the efficiency and effect of treatment; finally, under the action of the threaded sleeve and the threaded groove, the shell and the needle can be easily disassembled, which is not only convenient for daily maintenance and cleaning, but also ensures the hygiene and safety of the shell and needle, providing patients with more reliable medical protection.

[0014] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered to be part of the inventive subject matter of this disclosure, provided such concepts are not mutually inconsistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the shell and the local structure of the needle of the utility model in the disassembled state;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the handheld part and the adjustment component of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the adjustment component of the utility model in the disassembled state.

[0020] In the figure, the meanings of the various reference numerals are as follows: 1. Hand-held part; 2. Shell; 3. Adjustment assembly; 31. Guide frame; 32. Loading block; 33. Worm gear; 34. Loading plate; 35. Housing; 36. Motor; 37. Worm; 38. Guide hole; 39. Guide block; 310. Support plate; 4. Needle; 5. Threaded sleeve; 6. Threaded groove; 7. Electric telescopic rod; 8. Rubber plug; 9. Positioning block; 10. Anti-slip groove; 11. Through hole; 12. Placement groove; 13. Rubber ring; 14. Accommodation groove. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0022] As attached Figure 1 To the attached Figure 4 As shown: This embodiment provides a handheld dental pulp aspirator, comprising: a handheld part 1, a shell 2 is provided on the right side of the handheld part 1, an adjustment component 3 is provided between the handheld part 1 and the shell 2, a needle 4 is provided on the right side of the shell 2, a threaded sleeve 5 is fixedly connected to the left side of the needle 4, and a threaded groove 6 adapted to the threaded sleeve 5 is provided on the right side of the shell 2.

[0023] An electric telescopic rod 7 is fixedly connected to the left side of the inner cavity of the shell 2, and a rubber plug 8 is fixedly connected to the output end of the electric telescopic rod 7. The rubber plug 8 is slidably connected to the inner wall of the shell 2 and the needle 4. A positioning block 9 is fixedly connected to the surface of the electric telescopic rod 7, and the surface of the positioning block 9 is fixedly connected to the shell 2.

[0024] The adjustment assembly 3 includes two guide frames 31 fixedly connected to the right side of the handheld part 1, and the opposite sides of the two guide frames 31 are commonly fixedly connected to a loading block 32, and the surface of the loading block 32 is fixedly connected to a worm gear 33. The left side of the shell 2 is fixedly connected to a supporting plate 34, and the left side of the supporting plate 34 is fixedly connected to an outer shell 35. The inner cavity of the outer shell 35 is fixedly connected to a motor 36, and the output shaft of the motor 36 is fixedly connected to a worm 37. The worm 37 is meshed with the worm gear 33. A guide hole 38 is opened on one side of the guide frame 31, and the inner cavity of the guide hole 38 is slidably connected to a guide block 39, and one side of the guide block 39 is fixedly connected to the loading plate 34.

[0025] Specifically, an anti-slip pattern 10 is provided on the left side of the surface of the handle portion 1 .

[0026] In this embodiment, the anti-slip grooves 10 are provided to increase the friction between the doctor's palm and the handheld part 1, thereby improving the convenience of operation.

[0027] Specifically, the surface of the housing 2 is provided with a plurality of through holes 11 .

[0028] In this embodiment, the provision of the through hole 11 provides conditions for the movement of the rubber stopper 8, thereby avoiding difficulties in the movement of the rubber stopper 8.

[0029] Specifically, a placement groove 12 is provided on one side of the housing 2 and the opposite side of the needle 4 , and a rubber ring 13 is provided in the inner cavity of the placement groove 12 .

[0030] In this embodiment, the placement groove 12 and the rubber ring 13 are used in conjunction to increase the sealing between the housing 2 and the needle 4, thereby preventing liquid from passing through the gap between the housing 2 and the needle 4.

[0031] Specifically, two receiving slots 14 are provided on the right side of the handle 1 .

[0032] In this embodiment, through the provision of the accommodating groove 14 , when the supporting plate 34 rotates, the motor 36 and the support plate 310 will move into the inner cavity of the accommodating groove 14 , thereby providing space for the supporting plate 34 to move.

[0033] Specifically, the rear end of the worm 37 is rotatably connected to the support plate 310 , and one side of the support plate 310 is fixedly connected to the bearing plate 34 .

[0034] In this embodiment, by providing the support plate 310 , the worm 37 rotates on one side of the support plate 310 , thereby supporting the worm 37 and improving the stability of the worm 37 during rotation.

[0035] The working principle and use process of this utility model:

[0036] When in use, the motor 36 is started, and the output shaft of the motor 36 drives the worm 37 to rotate on one side of the support plate 310. Since the worm 37 and the worm wheel 33 are meshed, and the worm wheel 33 and the object carrier block 32 are fixedly connected, the worm 37 will rotate around the worm wheel 33 when it rotates. As the worm 37 rotates around the worm wheel 33, this power is transmitted to the supporting plate 310 to the supporting plate 34. Under the transmission of the supporting plate 310, the supporting plate 34 starts to move in the same direction. At the same time, the guide block 39 installed on the supporting plate 34 slides smoothly under the guidance of the guide hole 38, ensuring the stability and directionality of the supporting plate 34 and the shell 2 and the needle 4 it carries during the rotation process. Further, the supporting plate 34 drives the shell The body 2 and the needle 4 rotate to achieve the purpose of adjusting the angle of the needle 4, so that the doctor can easily adjust the direction of the needle 4 according to the patient's specific situation and surgical requirements, greatly improving the accuracy and efficiency of extracting the dental pulp; then, after one end of the needle 4 is inserted into the position of the patient's tooth damaged by caries, the electric telescopic rod 7 is started, and the output end of the electric telescopic rod 7 drives the rubber plug 8 to move to the left. This action forms a negative pressure environment inside the needle 4, thereby achieving effective extraction of the patient's dental pulp; finally, by rotating the needle 4, the needle 4 drives the threaded sleeve 5 to gradually disengage from the inner cavity of the threaded groove 6, thereby achieving rapid separation of the needle 4 and the shell 2, which facilitates cleaning of the shell 2 and the inner cavity of the needle 4.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A handheld dental pulp aspirator, comprising: A handheld portion (1) is characterized in that: a housing (2) is provided on the right side of the handheld portion (1); an adjustment assembly (3) is provided between the handheld portion (1) and the housing (2); a needle (4) is provided on the right side of the housing (2); a threaded sleeve (5) is fixedly connected to the left side of the needle (4); and a threaded groove (6) adapted to the threaded sleeve (5) is provided on the right side of the housing (2); An electric telescopic rod (7) is fixedly connected to the left side of the inner cavity of the housing (2); a rubber plug (8) is fixedly connected to the output end of the electric telescopic rod (7); the rubber plug (8) is in sliding connection with the housing (2) and the inner wall of the needle (4); a positioning block (9) is fixedly connected to the surface of the electric telescopic rod (7); and the surface of the positioning block (9) is fixedly connected to the housing (2); The adjustment assembly (3) comprises two guide frames (31) fixedly connected to the right side of the handheld part (1); a loading block (32) is fixedly connected to the opposite side of the two guide frames (31); a worm gear (33) is fixedly connected to the surface of the loading block (32); a bearing plate (34) is fixedly connected to the left side of the housing (2); a housing (35) is fixedly connected to the left side of the bearing plate (34); a motor (36) is fixedly connected to the inner cavity of the housing (35); an output shaft of the motor (36) is fixedly connected to a worm (37); the worm (37) is meshed with the worm gear (33); a guide hole (38) is opened on one side of the guide frame (31); a guide block (39) is slidably connected to the inner cavity of the guide hole (38); and one side of the guide block (39) is fixedly connected to the bearing plate (34).

2. The handheld dental pulp aspirator according to claim 1, characterized in that: The left side of the surface of the handheld portion (1) is provided with an anti-slip pattern (10).

3. The handheld dental pulp aspirator according to claim 1, characterized in that: The surface of the shell (2) is provided with through holes (11), and the number of the through holes (11) is several.

4. The handheld dental pulp aspirator according to claim 1, characterized in that: A placement groove (12) is provided on one side of the housing (2) and the needle (4) opposite to each other, and a rubber ring (13) is provided in the inner cavity of the placement groove (12).

5. The handheld dental pulp aspirator according to claim 1, characterized in that: Two receiving slots (14) are provided on the right side of the handheld portion (1).

6. The handheld dental pulp aspirator according to claim 1, characterized in that: The rear end of the worm (37) is rotatably connected to a support plate (310), and one side of the support plate (310) is fixedly connected to a bearing plate (34).

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