Multi-angle rotary head periodontal curette

Abstract

The utility model relates to medical instrument technical field especially is a periodontal curettage of multi -angle rotating head, including curettage body, the inner chamber of curettage body one end is provided with thread groove, the surface screw thread connection of thread groove has the threaded tube. The utility model has the advantages of multi -angle rotation and quick disassembly replacement, in the actual use process, through the cooperation of curettage body, thread groove and threaded tube, can realize simple and convenient installation and piecing together function, ensure stable and not easy to fall in the long time use process, through the cooperation of rotating rod, ratchet wheel, first fixed link, ratchet pawl, first connecting rod, first spring, second fixed link, rotating sleeve, second connecting rod, quick release mechanism and curettage head, can rotate rotating sleeve, easily drive curettage head to carry out multi -angle rotation, can accurately adjust the position of curettage head according to actual demand, ensure that every time use can reach the best operation angle and effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a periodontal curettage device with a multi-angle rotating head. Background Technology

[0002] Periodontal scaling is a commonly used tool in dental treatment, mainly used to remove tartar, plaque and other deposits near the gum line. It is commonly used in periodontal treatment and teeth cleaning. With the continuous development of dental technology, traditional manual scaling can no longer meet the growing clinical needs, especially in terms of precise operation and multi-angle cleaning. Therefore, the development of a periodontal scaling instrument that can perform multi-angle rotational operation has become an important breakthrough in the field of dental equipment.

[0003] As disclosed in CN219645927U, a periodontal scaling device includes a main rod with fixed ends on both sides. Both the main rod and the fixed ends have cavities. Each fixed end has a groove. A pair of scrapers are housed within the cavity, as well as a pair of rotating mechanisms. Each rotating mechanism includes a turntable for adjusting the angle of the scrapers at the groove. The main rod has a pair of fixed mechanisms. This invention utilizes the rotation of the turntable to engage a worm gear and a worm wheel, which are coaxially fixed to the turntable. The scraper at the working end is fixedly connected to the worm wheel, allowing the angle of the scraper at the groove of the fixed end to be adjusted. When the dentist rotates the turntable to adjust the scraper to a suitable angle, the output end of an electric telescopic rod engages with a circular hole on the turntable, thus fixing the working end. The structure is simple and convenient.

[0004] While the aforementioned patent can achieve a certain degree of rotation, its electric design results in a higher overall cost, which increases the burden on users in practical applications. The lack of a quick-release structure prevents rapid replacement of the curettage head, limiting its efficiency and convenience in clinical treatment. In particular, when frequent replacement of the curettage head is required to meet different treatment needs, the operation process becomes quite cumbersome. Utility Model Content

[0005] The purpose of this invention is to provide a periodontal scaling device with a multi-angle rotating head, which has the advantages of multi-angle rotation and quick disassembly and replacement, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a periodontal curette with a multi-angle rotating head, comprising a curette body, a threaded groove formed in the inner cavity of one end of the curette body, a threaded tube threadedly connected to the surface of the threaded groove, a rotating rod rotatably connected to the center of the inner cavity of the threaded tube, a ratchet fixedly connected to the surface of one end of the rotating rod, two first fixing rods fixedly connected to the surface of the inner cavity of the threaded tube, pawls rotatably connected to the surface of each of the two first fixing rods, one end of the pawls contacting the ratchet, a first connecting rod fixedly connected to the surface of each of the two pawls, a first spring fixedly connected to the surface of each of the first connecting rods, a second fixing rod fixedly connected to the other end of the first spring, the second fixing rods fixedly connected to the inner cavity of the threaded tube, a rotating sleeve rotatably connected to the surface of the threaded tube, four second connecting rods fixedly connected to the surface of the other end of the rotating rod, the other ends of the four second connecting rods fixedly connected to the inner wall of the rotating sleeve, and a quick-release mechanism fixedly connected to the inner wall of one end of the rotating sleeve.

[0007] Furthermore, as a preferred embodiment of this utility model, the quick-release mechanism includes a fixed seat fixedly connected to the inner wall of the rotating sleeve. The inner cavity of the fixed seat has three guide grooves arranged in a ring array. A connector is movably connected to the inner cavity of the fixed seat, and the surface of the connector is in contact with the guide grooves. Three pull rods are arranged in a ring array on the surface of the fixed seat. One end of the pull rod is fixedly connected to a mounting block. A second spring is sleeved between the pull rod and the mounting block. The surface of the connector has three mounting grooves arranged in a ring array. The mounting block is movably connected to the inner cavity of the mounting groove.

[0008] Furthermore, as a preferred embodiment of this invention, a scraping head is fixedly connected to the surface of the connector.

[0009] Furthermore, as a preferred embodiment of this utility model, a limiting groove is formed on the surface of the threaded tube, and the inner wall of one end of the rotating sleeve is rotatably connected to the inner cavity of the limiting groove.

[0010] Furthermore, as a preferred embodiment of this invention, the surface of the rotating sleeve is provided with anti-slip texture.

[0011] Beneficial Effects: The technical solution of this application has the following advantages: This utility model has the advantages of multi-angle rotation and quick disassembly and replacement. In actual use, through the cooperation of the scraper body, threaded groove and threaded tube, it can achieve simple installation and assembly, ensuring stability and preventing it from falling off during long-term use. Through the cooperation of the rotating rod, ratchet, first fixed rod, pawl, first connecting rod, first spring, second fixed rod, rotating sleeve, second connecting rod, quick-release mechanism and scraper head, the scraper head can be easily rotated in multiple angles by rotating the rotating sleeve. The position of the scraper head can be precisely adjusted according to actual needs, ensuring optimal operation every time it is used. The ratchet and pawl mechanism effectively prevents reverse movement, ensuring operational safety and precision. The quick-release mechanism enables simple and efficient disassembly; pulling the three levers allows for easy separation of the connector and scraper head, enhancing operational convenience. Furthermore, to ensure safety during use, three levers are provided; disassembly can only be performed after all three levers are unlocked simultaneously. This effectively prevents the scraper head from falling due to misoperation or unlocking a single lever, further improving safety and stability. This not only enhances the product's ease of use but also strengthens its durability and safety during high-frequency use.

[0012] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the explosion of the device of this utility model; Figure 3 This is a schematic cross-sectional view of the threaded pipe of this utility model; Figure 4 This is a plan view of the ratchet and pawl structure of this utility model; Figure 5 This is an exploded view of the quick-release mechanism of this utility model; Figure 6 This is a cross-sectional schematic diagram of the fixing base of this utility model.

[0014] In the figure, the meanings of the various reference numerals are as follows: 1. Scraper body; 2. Threaded groove; 3. Threaded tube; 4. Rotating rod; 5. Ratchet; 6. First fixed rod; 7. Pawl; 8. First connecting rod; 9. First spring; 10. Second fixed rod; 11. Rotating sleeve; 12. Second connecting rod; 13. Quick release mechanism; 131. Fixed seat; 132. Guide groove; 133. Connector; 134. Pull rod; 135. Mounting block; 136. Second spring; 137. Mounting groove; 14. Scraper head; 15. Limiting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. To better understand the technical content of the present utility model, specific embodiments are provided and described in conjunction with the accompanying drawings. Various aspects of the present utility model are described in this disclosure with reference to the accompanying drawings, which show many illustrative embodiments. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] As attached Figure 1 To be continued Figure 6 As shown: This embodiment provides a periodontal curette with a multi-angle rotating head, including a curette body 1. A threaded groove 2 is formed in the inner cavity of one end of the curette body 1. A threaded tube 3 is threadedly connected to the surface of the threaded groove 2. A rotating rod 4 is rotatably connected to the center of the inner cavity of the threaded tube 3. A ratchet 5 is fixedly connected to the surface of one end of the rotating rod 4. Two first fixing rods 6 are fixedly connected to the surface of the inner cavity of the threaded tube 3. A pawl 7 is rotatably connected to the surface of each of the two first fixing rods 6. One end of the pawl 7 is in contact with the ratchet 5. A first connecting rod 8 is fixedly connected to the surface of each of the two pawls 7. A first spring 9 is fixedly connected to the surface of the first connecting rod 8. A second fixing rod 10 is fixedly connected to the other end of the first spring 9. The second fixing rod 10 is fixedly connected to the inner cavity of the threaded tube 3. A rotating sleeve 11 is rotatably connected to the surface of the threaded tube 3. Four second connecting rods 12 are fixedly connected to the surface of the other end of the rotating rod 4. The other ends of the four second connecting rods 12 are fixedly connected to the inner wall of the rotating sleeve 11. A quick-release mechanism 13 is fixedly connected to the inner wall of one end of the rotating sleeve 11.

[0017] Specifically, the quick-release mechanism 13 includes a fixed seat 131 fixedly connected to the inner wall of the rotating sleeve 11. The inner cavity of the fixed seat 131 is provided with three guide grooves 132 arranged in a ring. The inner cavity of the fixed seat 131 is movably connected to a connector 133, and the surface of the connector 133 is in contact with the guide grooves 132. The surface of the fixed seat 131 is provided with three pull rods 134 arranged in a ring. One end of the pull rod 134 is fixedly connected to a mounting block 135. A second spring 136 is sleeved between the pull rod 134 and the mounting block 135. The surface of the connector 133 is provided with three mounting grooves 137 arranged in a ring. The mounting block 135 is movably connected to the inner cavity of the mounting groove 137.

[0018] In this embodiment, the quick-release mechanism 13 allows for easy disassembly when replacement or cleaning is required, eliminating the need for complex tools or excessive time. This not only improves ease of use but also effectively saves maintenance time, reduces operational difficulty, and enhances the overall user experience and work efficiency.

[0019] Specifically, a scraping head 14 is fixedly connected to the surface of connector 133.

[0020] In this embodiment, the main function of the scaling head 14 is to perform professional scaling treatment on the patient's periodontal tissues. The scaling head 14 is made of, but is not limited to, medical-grade stainless steel, which has excellent corrosion resistance, antibacterial properties and high strength, ensuring safety and reliability during the treatment process.

[0021] Specifically, a limiting groove 15 is formed on the surface of the threaded tube 3, and the inner wall of one end of the rotating sleeve 11 is rotatably connected to the inner cavity of the limiting groove 15.

[0022] In this embodiment, the limiting groove 15 makes it less likely for the rotating sleeve 11 to deviate from the predetermined trajectory during rotation, avoiding damage or inconvenience caused by unstable rotation, improving the stability of the overall structure, ensuring smooth and efficient operation, and extending service life and reducing maintenance costs.

[0023] Specifically, the surface of the rotating sleeve 11 is provided with anti-slip texture.

[0024] In this embodiment, the anti-slip texture effectively prevents instability caused by the user's slipping hand during operation, increases the friction between the user and the surface in contact with the hand, makes the sleeve feel more secure when rotating, makes the operation more precise, and reduces the safety hazards caused by slipping.

[0025] The working principle and usage process of this utility model are as follows: During use, the doctor can pinch the rotating sleeve 11 with their index finger and thumb and rotate it, thereby causing the rotating sleeve 11 to drive the four second connecting rods 12 to rotate. These four scraping heads 14 are fixedly connected to the surface of the rotating rod 4, which in turn drives the rotating rod 4 to rotate inside the threaded tube 3. A ratchet 5 is fixedly connected to the surface of the rotating rod 4, and the ratchet 5 is in contact with two pawls 7. When rotating, the ratchet 5 drives the pawls 7 to rotate on the surface of the first fixed rod 6. The pawls 7 are fixedly connected to the first connecting rod 8, and the first connecting rod 8 is fixedly connected to the first spring 9. At this time, under the elastic recovery of the first spring 9, the pawls 7 are continuously engaged with the teeth of the ratchet 5, thereby ensuring that the ratchet 5 can only rotate in one direction, avoiding back rotation and increasing the safety of use. The ratchet 5 has 24 teeth and adopts a geared design. This design allows for precise adjustments in 15° increments, enhancing stability. Doctors can clearly perceive each setting during operation, enabling more accurate control of the scaling head's angle and optimizing the periodontal scaling effect. When cleaning or replacing the scaling head 14, the user simply pulls all three levers 134 simultaneously, causing the mounting block 135 to slide within the fixed base 131. The mounting block 135 then detaches from the mounting slot 137, easily removing the scaling head 14. For installation, the user pulls the three levers 134 again, aligning the protrusion on the connector 133 with the guide groove 132 and pushing it in. Releasing the levers 134 allows the mounting block 135 to automatically engage with the mounting slot 137 under the elastic recovery of the second spring 136, completing the installation of the scaling head 14. This simplifies the disassembly and installation process and improves operational convenience and safety.

[0026] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0027] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A periodontal scaling device with a multi-angle rotating head, comprising a scaling device body (1), characterized in that: The inner cavity of one end of the scraper body (1) is provided with a threaded groove (2), and a threaded tube (3) is threadedly connected to the surface of the threaded groove (2). A rotating rod (4) is rotatably connected to the center of the inner cavity of the threaded tube (3). A ratchet (5) is fixedly connected to the surface of one end of the rotating rod (4). Two first fixing rods (6) are fixedly connected to the surface of the inner cavity of the threaded tube (3). A pawl (7) is rotatably connected to the surface of each of the two first fixing rods (6). One end of the pawl (7) is in contact with the ratchet (5). A first connecting rod (8) is fixedly connected to the surface of each of the two pawls (7). A first spring (9) is fixedly connected to the surface of the first connecting rod (8), and a second fixing rod (10) is fixedly connected to the other end of the first spring (9). The second fixing rod (10) is fixedly connected to the inner cavity of the threaded tube (3). A rotating sleeve (11) is rotatably connected to the surface of the threaded tube (3). Four second connecting rods (12) are fixedly connected to the surface of the other end of the rotating rod (4). The other ends of the four second connecting rods (12) are all fixedly connected to the inner wall of the rotating sleeve (11). A quick-release mechanism (13) is fixedly connected to the inner wall of one end of the rotating sleeve (11).

2. The periodontal scaling device with a multi-angle rotating head according to claim 1, characterized in that: The quick-release mechanism (13) includes a fixed seat (131) fixedly connected to the inner wall of the rotating sleeve (11). The inner cavity of the fixed seat (131) is provided with three guide grooves (132) arranged in an annular array. The inner cavity of the fixed seat (131) is movably connected to a connector (133), and the surface of the connector (133) is in contact with the guide grooves (132). The surface of the fixed seat (131) is provided with three pull rods (134) arranged in an annular array. One end of the pull rod (134) is fixedly connected to a mounting block (135). A second spring (136) is sleeved between the pull rod (134) and the mounting block (135). The surface of the connector (133) is provided with three mounting grooves (137) arranged in an annular array. The mounting block (135) is movably connected to the inner cavity of the mounting groove (137).

3. The periodontal scaling device with a multi-angle rotating head according to claim 2, characterized in that: A scraping head (14) is fixedly connected to the surface of the connector (133).

4. The periodontal scaling device with a multi-angle rotating head according to claim 1, characterized in that: The threaded tube (3) has a limiting groove (15) on its surface, and the inner wall of one end of the rotating sleeve (11) is rotatably connected to the inner cavity of the limiting groove (15).

5. A periodontal scaling device with a multi-angle rotating head according to claim 1, characterized in that: The surface of the rotating sleeve (11) is provided with anti-slip texture.

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