Tooth pulp aspirator

By designing a combined structure for the dental pulp aspiration device, the problem of frequent equipment switching during dental pulp aspiration surgery was solved, achieving efficient aspiration and cleaning operations and simplifying the doctor's operating procedures.

CN223831208UActive Publication Date: 2026-01-27AFFILIATED STOMATOLOGICAL HOSPITAL OF NANCHANG UNIV (JIANGXI PROVINCIAL STOMATOLOGICAL HOSPITAL)
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520078935.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-27
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

In current dental pulp aspiration surgery, doctors need to frequently switch between pulpotomy tools and cleaning equipment, which increases the difficulty of the operation and prolongs the operation time.

Method used

A dental pulp aspirator was designed, comprising components such as a housing, a sealing cap, an aspirator, an air chamber, a storage chamber, and a conversion disc. Through the cooperation of curved channels and moving blocks, it achieves flexible switching between suction and air blowing cleaning, enhancing sealing performance and operational stability.

Benefits of technology

It simplifies the operation process, improves surgical efficiency, reduces equipment switching time, and provides a convenient operating experience and efficient cleaning effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223831208U_ABST
    Figure CN223831208U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of medical instruments. The tooth pulp aspirator comprises a shell, a sealing cover used for sealing the device is arranged above the shell, an aspirator is fixed on one side of the interior of the shell, an air bin is fixedly arranged on one side of the aspirator, a storage bin is installed on one side of the aspirator and the air bin, and a conversion bin is installed on the face, close to the aspirator and the air bin, of the outer side of the shell. A conversion disc is rotationally installed in the conversion bin, a bent channel is formed in the conversion disc, a communication groove is formed in the face, making contact with the suction device and the air bin, of the side face of the shell, and an installation groove is formed in the face, close to the conversion bin, of the communication groove. And switching between extraction and blowing cleaning can be flexibly adjusted in the working process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a dental pulp aspirator. Background Technology

[0002] Diseases of the hard tissues of the teeth are called dental caries, which in a broader sense also include pulpitis. Dental caries is a progressive lesion of the hard tissues of the teeth caused by a combination of factors in the oral cavity. It manifests as demineralization of inorganic matter and decomposition of organic matter, evolving from a change in color to the formation of substantial lesions as the disease progresses. When treating dental caries and pulpitis, a suction machine is needed for targeted aspiration.

[0003] During a dental pulp aspiration procedure, the dentist first needs to open the pulp chamber of the tooth using a pulpotomy tool to expose the pulp tissue. However, this process leaves behind excess tooth structure, requiring the dentist to remove these residues using a cleaning device before pulp aspiration can proceed. This frequent switching between two devices not only increases the difficulty of the procedure but also significantly prolongs the overall surgery time. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a dental pulp aspirator, comprising a housing, a sealing cover for sealing, an aspirator fixed to one side of the housing, an air chamber fixed to one side of the aspirator, a storage chamber installed on one side of the aspirator and air chamber, a conversion chamber installed on the outer side of the housing near the aspirator and air chamber, a conversion disc rotatably mounted inside the conversion chamber, a curved channel formed inside the conversion disc, a connecting groove formed on the side of the housing in contact with the aspirator and air chamber, an installation groove formed on the side of the connecting groove near the conversion chamber, an arc-shaped moving groove formed on the side of the housing in contact with the conversion chamber, a toothed moving block formed inside the arc-shaped moving groove, the moving block connected to the conversion disc, a gear rotatably mounted on one side of the installation groove, a toothed ring threadedly connected inside the installation groove, a sealing rubber ring at one end of the toothed ring; and a fixing component for controlling the rotation and fixing of the conversion disc on the side of the conversion chamber.

[0005] As an improvement to the above technical solution, the fixing component includes a connecting column, an arc-shaped displacement groove is provided on the side of the conversion chamber, and fixing grooves are provided at both ends of the arc-shaped displacement groove. The connecting column is installed inside the fixing groove and is rotatably connected to the conversion chamber. A fixing plate is installed on the upper end of the connecting column, and a cylindrical part in the middle of the fixing plate is installed inside the connecting column. A rotating shaft is provided inside the connecting column, and the bottom end of the rotating shaft is threadedly connected to the inside of the connecting column. A knob is connected to one end of the rotating shaft.

[0006] As an improvement to the above technical solution, one end of the curved channel is connected to a suction head, and a storage ring is provided on the side of the housing.

[0007] As an improvement to the above technical solution, the movable block is arc-shaped and is movably installed inside the arc-shaped movable groove.

[0008] As an improvement to the above technical solution, the teeth on the moving block mesh with a gear, and the gear meshes with a toothed ring.

[0009] The beneficial effects of this utility model are as follows: A sealing cover on the top of the housing ensures a tight seal inside the device. A suction device is fixed to one side of the housing, adjacent to which is an air chamber. These two work together to achieve effective extraction and air-blowing cleaning. A storage chamber is installed on one side of the suction device and air chamber for storing the extracted pulp sample. A conversion chamber is located on the outer side of the housing, inside which a conversion disc is rotatably mounted. The disc has curved channels inside, allowing for flexible adjustment of the extraction and air-blowing cleaning processes. To effectively cooperate with the conversion disc, a connecting groove is provided on the side of the housing, near the rotating disc. One side of the conversion chamber has an installation groove, and the side of the housing that contacts the conversion chamber also has an arc-shaped moving groove with a toothed moving block inside. This moving block is tightly connected to the conversion disc. A gear is rotatably installed on one side of the installation groove, and a toothed ring is threaded into the inside of the installation groove. One end of the ring is equipped with a sealing rubber ring, which enhances the sealing performance of the connection port when the device switches working functions and makes the rotation and fixing of the conversion disc easy. In addition, the side of the conversion chamber is also equipped with fixing components. These components together ensure the stability and accuracy of the conversion disc during rotation, and also provide users with a convenient operating experience. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a three-dimensional sectional view of the present invention;

[0012] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0013] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0014] Figure 5 This is a three-dimensional structural diagram of the connection between the fixing plate, connecting column, and rotating shaft in this utility model.

[0015] Reference numerals: 10. Housing; 11. Sealing cap; 12. Suction device; 13. Air chamber; 14. Storage chamber; 15. Conversion chamber; 16. Suction head; 17. Receiving ring; 18. Connecting groove; 20. Conversion disc; 21. Curved channel; 22. Mounting groove; 23. Arc-shaped moving groove; 24. Moving block; 25. Gear; 26. Toothed ring; 27. Sealing rubber ring; 30. Arc-shaped displacement groove; 31. Fixing groove; 32. Fixing plate; 33. Connecting column; 34. Rotating shaft; 35. Knob. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0017] Please see Figure 1-5 This utility model provides a technical solution: a dental pulp aspirator, including a housing 10, a sealing cover 11 for sealing the housing 10, a suction device 12 fixed to one side inside the housing 10, an air chamber 13 fixed to one side of the suction device 12, a storage chamber 14 installed on one side of the suction device 12 and the air chamber 13, a conversion chamber 15 installed on the outer side of the housing 10 near the suction device 12 and the air chamber 13, a conversion disc 20 rotatably mounted inside the conversion chamber 15, and a curved channel 21 opened inside the conversion disc 20. The side of the housing 10 and the suction device 12... A connecting groove 18 is provided on the contact side of the air chamber 13. An installation groove 22 is provided on the side of the connecting groove 18 near the conversion chamber 15. An arc-shaped moving groove 23 is provided on the contact side of the shell 10 and the conversion chamber 15. A toothed moving block 24 is provided inside the arc-shaped moving groove 23. The moving block 24 is connected to the conversion disc 20. A gear 25 is rotatably installed on one side of the installation groove 22. A toothed ring 26 is threadedly connected inside the installation groove 22. A sealing rubber ring 27 is provided at one end of the toothed ring 26. A fixing component for controlling the rotation and fixing of the conversion disc 20 is provided on the side of the conversion chamber 15.

[0018] In this embodiment, a sealing cover 11 is provided on the top of the housing 10 to ensure a tight seal inside the device. A suction device 12 is fixed to one side of the inside of the housing 10, adjacent to an air chamber 13. The two work together to achieve effective extraction and air cleaning. A storage chamber 14 is installed on one side of the suction device 12 and air chamber 13 to facilitate the storage of extracted pulp samples. A conversion chamber 15 is provided on the outer side of the housing 10, inside which a conversion disc 20 is rotatably mounted. The disc has a curved channel 21, allowing for flexible adjustment of the extraction and air cleaning process. To effectively cooperate with the conversion disc 20, a connecting groove 18 is provided on the side of the housing 10, near the conversion chamber 15. One side of the housing 10 is provided with a mounting groove 22. At the same time, the side of the housing 10 that contacts the conversion chamber 15 is also provided with an arc-shaped moving groove 23, which is equipped with a toothed moving block 24. The moving block 24 is tightly connected to the conversion disc 20. A gear 25 is rotatably installed on one side of the mounting groove 22, and a toothed ring 26 is threadedly connected inside the mounting groove 22. One end of the ring is equipped with a sealing rubber ring 27, which enhances the sealing performance of the connection port when the device switches working functions, and also makes the rotation and fixing of the conversion disc 20 easier. In addition, the side of the conversion chamber 15 is also equipped with fixing components. These components together ensure the stability and accuracy of the conversion disc 20 when rotating, and also provide users with a convenient operating experience.

[0019] Specifically, the fixing component includes a connecting column 33, an arc-shaped displacement groove 30 is provided on the side of the conversion chamber 15, and fixing grooves 31 are provided at both ends of the arc-shaped displacement groove 30. The connecting column 33 is installed inside the fixing groove 31 and is rotatably connected to the conversion chamber 15. A fixing plate 32 is installed on the upper end of the connecting column 33, and a cylindrical part in the middle of the fixing plate 32 is installed inside the connecting column 33. A rotating shaft 34 is provided inside the connecting column 33, and the bottom end of the rotating shaft 34 is threadedly connected to the inside of the connecting column 33. A knob 35 is connected to one end of the rotating shaft 34.

[0020] In this embodiment, an arc-shaped displacement groove 30 is designed on the side of the conversion chamber 15 to facilitate the movement of the connecting column 33. Fixing grooves 31 are formed at both ends of the arc-shaped displacement groove 30 for installing and fixing the connecting column 33. The connecting column 33 is not only installed inside the fixing groove 31 but also forms a rotatable connection with the conversion chamber 15, allowing the connecting column 33 to move flexibly and be positioned within the arc-shaped displacement groove 30. A fixing plate 32 is installed at the upper end of the connecting column 33, with the central cylinder of the fixing plate 32 embedded inside the connecting column 33, enhancing the structural stability. Inside the connecting column 33, a rotating shaft 34 is also provided. The bottom end of the rotating shaft 34 is tightly connected to the inside of the connecting column 33 via threads, ensuring the stable installation of the rotating shaft 34. One end of the rotating shaft 34 is connected to a knob 35, allowing the user to easily control the connecting column 33 and the fixing plate 32 by rotating the knob 35, thereby achieving the fixing and release of the conversion disc 20. This fixing component design not only enhances the stability and accuracy of the suction device but also provides users with a more convenient and efficient operating experience.

[0021] Specifically, one end of the curved channel 21 is connected to a suction head 16, and a storage ring 17 is provided on the side of the housing 10.

[0022] In this embodiment, the suction head 16 is connected through one end of the curved channel 21. In order to facilitate the storage and organization of the suction head 16 when not in use, a storage ring 17 is provided on the side of the housing 10. The design of the storage ring 17 not only allows the suction head 16 to be placed in an orderly manner when idle, avoiding chaos and loss, but also makes it convenient for users to quickly retrieve it when needed, greatly improving work efficiency and ease of use.

[0023] Specifically, the movable block 24 is arc-shaped and is movably installed inside the arc-shaped movable groove 23.

[0024] In this embodiment, the movable block 24 is arc-shaped and is movably installed inside the arc-shaped movable groove 23, so that the movable block 24 can move smoothly within the arc-shaped movable groove 23 as the conversion disk 20 rotates, ensuring the stability and smoothness of the conversion disk 20 during rotation. The cooperation between the arc-shaped movable groove 23 and the arc-shaped movable block 24 not only reduces friction and resistance, but also improves the compactness and durability of the entire structure.

[0025] Specifically, the teeth on the moving block 24 mesh with the gear 25, and the gear 25 meshes with the toothed ring 26.

[0026] In this embodiment, the teeth on the moving block 24 mesh with the gear 25, and the gear 25 forms a tight meshing relationship with the toothed ring 26. This allows the moving block 24 to drive the gear 25 to rotate when it moves in the arc-shaped moving groove 23, thereby causing the toothed ring 26 to rotate in the mounting groove 22, which in turn causes the sealing rubber ring 27 to move and seal the device.

[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A dental pulp aspirator, comprising a housing (10), wherein a sealing cap (11) for a sealing device is disposed on the upper part of the housing (10), characterized in that: A suction device (12) is fixed inside one side of the housing (10). An air chamber (13) is fixedly installed on one side of the suction device (12). A storage chamber (14) is installed on one side of the suction device (12) and the air chamber (13). A conversion chamber (15) is installed on the outer side of the housing (10) near the suction device (12) and the air chamber (13). A conversion disc (20) is rotatably installed inside the conversion chamber (15). A curved channel (21) is opened inside the conversion disc (20). A side of the housing (10) in contact with the suction device (12) and the air chamber (13) is provided with a conversion disc (21). There is a connecting groove (18), and the side of the connecting groove (18) near the conversion chamber (15) is provided with an installation groove (22). The side of the housing (10) that contacts the conversion chamber (15) is provided with an arc-shaped moving groove (23). A toothed moving block (24) is provided inside the arc-shaped moving groove (23). The moving block (24) is connected to the conversion disc (20). A gear (25) is rotatably installed on one side of the installation groove (22). A toothed ring (26) is threaded inside the installation groove (22). A sealing rubber ring (27) is provided at one end of the toothed ring (26). The side of the conversion chamber (15) is provided with a fixing component for controlling the rotation and fixing of the conversion disc (20).

2. The dental pulp aspiration device according to claim 1, characterized in that: The fixing component includes a connecting column (33), an arc-shaped displacement groove (30) is provided on the side of the conversion chamber (15), and fixing grooves (31) are provided at both ends of the arc-shaped displacement groove (30). The connecting column (33) is installed inside the fixing groove (31) and is rotatably connected to the conversion chamber (15). A fixing plate (32) is installed on the upper end of the connecting column (33). The middle cylinder of the fixing plate (32) is installed inside the connecting column (33). A rotating shaft (34) is provided inside the connecting column (33). The bottom end of the rotating shaft (34) is threadedly connected to the inside of the connecting column (33). A knob (35) is connected to one end of the rotating shaft (34).

3. The dental pulp aspiration device according to claim 1, characterized in that: One end of the curved channel (21) is connected to a suction head (16), and a storage ring (17) is provided on the side of the housing (10).

4. The dental pulp aspirator according to claim 1, characterized in that: The movable block (24) is arc-shaped and is movably installed inside the arc-shaped movable groove (23).

5. A dental pulp aspiration device according to claim 1, characterized in that: The teeth on the movable block (24) mesh with the gear (25), and the gear (25) meshes with the toothed ring (26).