Novel resin filler

By embedding multiple individually deployable filling heads inside the resin filler handle and securing them with magnets, combined with a sealing component for protection, the problem of cumbersome preparation of various filling head models is solved, enabling convenient and multifunctional use.

CN223987930UActive Publication Date: 2026-03-13广州医科大学附属番禺中心医院(广州市番禺区中心医院 广州市番禺区人民医院)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing resin filling devices require multiple spare tool heads, making preparation cumbersome and inconvenient to use.

Method used

A novel resin filler is designed with a rectangular groove inside the handle. Four individually deployable filling heads are embedded in the rectangular rod and fixed by magnetic attraction. It is also equipped with a sealing component to protect unused filling heads, making it convenient to select and carry.

Benefits of technology

With just one resin filler, various filling head models can be used, simplifying preparation and improving ease of use and portability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel resin filler, which relates to the technical field of resin filler, and comprises a handle, two sides of the handle are respectively provided with a rectangular groove, a rectangular rod is arranged in each rectangular groove, four sides of each rectangular rod are respectively provided with a clamping groove and a storage groove, the inside of each clamping groove is movably connected with a filling head through a damping rotating shaft, and the inside of each storage groove is provided with a clamping groove. An iron sheet is connected to the inner wall of the rectangular groove in an embedded mode, a magnet is connected to the side, close to the iron sheet, of the rectangular rod in an embedded mode, and the magnet is connected with the iron sheet in a magnetic attraction mode. The two rectangular rods are inserted into the handle, the four filling heads which can be independently unfolded for use are embedded into the rectangular rods, and the eight filling heads are different in model, so that only one resin filler needs to be independently prepared when an instrument is prepared, eight models of filling heads are arranged in the resin filler, and the needed filling heads can be unfolded for use according to requirements; the device is convenient to use, simple in preparatory work and convenient to carry and use.
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Description

Technical Field

[0001] This utility model relates to the field of resin filler technology, and in particular to a novel resin filler. Background Technology

[0002] Dental caries is an oral disease, and the treatment of dental caries is called cavity filling, commonly known as tooth filling. The purpose of cavity treatment is to stop the progression of decay, restore the shape of the tooth, such as the reconstruction of cusps and contact points, restore the function of the tooth, and protect the dental pulp. Depending on the different stages of decay, various methods are used, including decay tissue removal, drug therapy, remineralization, filling, and restorative methods. Clinically, filling is the most commonly used method to repair caries defects. Resin filling instruments are frequently used during tooth filling.

[0003] A search revealed Chinese patent number CN202122375099.1, which discloses a resin filling device belonging to the field of medical device technology. This device addresses the technical problems of existing resin filling devices having non-adjustable and non-replaceable tool heads, resulting in inconvenient use. The device includes a handle, one end of which has a first square hole into which a material-picking tool head is detachably inserted. The other end of the handle is fixed with an adjusting rod, the end of which is fixed with a mounting ring. The mounting ring has a second square hole into which a shaping tool head is detachably inserted.

[0004] The aforementioned public document describes a design where the original integrated resin filler is replaced with a shaper tool head. When replacing with other models of resin fillers, only the shaper tool head needs to be replaced. While this offers some convenience, it still has some drawbacks. For example, when preparing resin filler equipment, in addition to preparing a complete resin filler, multiple spare tool heads also need to be prepared, making the preparation work rather cumbersome.

[0005] To address the aforementioned shortcomings, this application proposes a novel resin filler. Utility Model Content

[0006] This invention provides a novel resin filler to solve the aforementioned technical problems.

[0007] To solve the above-mentioned technical problems, this utility model provides a novel resin filler, including a handle. A rectangular groove is formed on each side of the handle, and a rectangular rod is installed inside the rectangular groove. The rectangular rod has a slot and a storage slot on each of its four sides. The slot is located on one side of the storage slot. A filling head is movably connected inside the slot via a damping shaft. The end of the filling head extends into the storage slot. Two first arc-shaped spring pieces and two second arc-shaped spring pieces are fixedly connected to the inner wall of the slot. The first arc-shaped spring pieces are located on one side of the second arc-shaped spring pieces, and the outer side of the second arc-shaped spring pieces contacts the outer end of the filling head. An iron sheet is embedded in the inner wall of the rectangular groove. A magnet is embedded in the side of the rectangular rod near the iron sheet, and the magnet and the iron sheet are magnetically attracted to each other.

[0008] Preferably, arc-shaped grooves are provided on both sides of the card slot.

[0009] Preferably, a sealing component is embedded in each of the four sides of the rectangular rod. The sealing component includes an irregularly shaped cover plate, which is adapted to be embedded in the slot, the storage slot, and the arc-shaped slot. A blocking block is fixedly connected to one side of the bottom of the irregularly shaped cover plate. The blocking block is located inside the slot and on one side of the filling head. The blocking block is located between two first arc-shaped spring pieces. Two matching slots are opened at the outer end of the blocking block. The outer end of the first arc-shaped spring piece contacts the inner wall of the matching slot.

[0010] Preferably, a cylindrical block is fixedly connected to the side of the rectangular rod away from the magnet, and a plug is connected to each side of the handle, with the plug fitting over the cylindrical block.

[0011] Preferably, the rectangular rod has chamfered edges at all four corners, and the rectangular rod and the rectangular groove are compatible. The outer end of the handle has anti-slip texture.

[0012] Compared with related technologies, the novel resin filler provided by this utility model has the following beneficial effects:

[0013] By inserting two rectangular rods into the handle, and embedding four individually deployable filling heads into the rectangular rods, the eight filling heads are of different models. This way, when preparing the instrument, only one resin filling device needs to be prepared. It comes with eight models of filling heads. You can unfold the filling head you need to use as required. It is convenient to use, the preparation work is simpler, and it is more convenient to carry and use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a novel resin filler proposed in this utility model.

[0015] Figure 2This is a schematic diagram of the overall main sectional view of a novel resin filler proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the main sectional view of the handle of a novel resin filler proposed in this utility model.

[0017] Figure 4 A schematic diagram illustrating the structural effect of the sealing assembly of a novel resin filler proposed in this utility model.

[0018] Figure 5 A schematic diagram of the internal structure of the rectangular rod of a novel resin filler proposed in this utility model;

[0019] Figure 6 This is a cross-sectional view of a rectangular rod structure of a novel resin filler proposed in this utility model.

[0020] Figure 7 This is a schematic diagram of the sealing assembly structure of a novel resin filler proposed in this utility model;

[0021] Figure 8 This is a diagram illustrating the use of the filling head of a novel resin filler proposed in this utility model.

[0022] The following are the labels in the diagram: 1. Handle, 2. Rectangular groove, 3. Rectangular rod, 5. Slot, 6. Storage slot, 7. Sealing component, 71. Irregularly shaped cover plate, 72. Block, 73. Adaptor slot, 8. Arc-shaped groove, 9. First arc-shaped spring, 10. Second arc-shaped spring, 11. Filling head, 12. Cylindrical block, 13. Magnet, 14. Iron sheet, 15. Plug cap. Detailed Implementation

[0023] Implementation examples, by Figure 1-8 The present invention includes a handle 1, with a rectangular groove 2 on each side of the handle 1. A rectangular rod 3 is installed inside the rectangular groove 2. The rectangular rod 3 has a slot 5 and a storage slot 6 on each of its four sides. The slot 5 is located on one side of the storage slot 6. A filling head 11 is movably connected inside the slot 5 via a damping pivot. The end of the filling head 11 extends into the storage slot 6. Two first arc-shaped spring pieces 9 and two second arc-shaped spring pieces 10 are fixedly connected to the inner wall of the slot 5. The first arc-shaped spring pieces 9 are located on one side of the second arc-shaped spring pieces 10. The outer side of the second arc-shaped spring pieces 10 is in contact with the outer end of the filling head 11. An iron sheet 14 is embedded in the inner wall of the rectangular groove 2. A magnet 13 is embedded in the side of the rectangular rod 3 near the iron sheet 14. The magnet 13 and the iron sheet 14 are magnetically connected. Four filling heads 11 are installed on each rectangular rod 3, for a total of eight filling heads 11. The eight filling heads 11 are of different models and can be selectively unfolded and taken out for use according to actual needs.

[0024] The card slot 5 has arc-shaped grooves 8 on both sides. By inserting fingers into the arc-shaped grooves 8, it is easier to pinch the filling head 11 in the card slot 5 and to remove the filling head 11 for use.

[0025] The rectangular rod 3 has a sealing component 7 embedded on each of its four sides. The sealing component 7 includes a shaped cover plate 71, which is fitted into the slot 5, the storage slot 6, and the arc-shaped groove 8. A blocking block 72 is fixedly connected to one side of the bottom of the shaped cover plate 71. The blocking block 72 is located inside the slot 5 and on one side of the filling head 11, between two first arc-shaped spring pieces 9. Two fitting grooves 73 are formed at the outer end of the blocking block 72, and the outer ends of the first arc-shaped spring pieces 9 contact the inner walls of the fitting grooves 73. The sealing component 7 is made of transparent plastic material, allowing the selection of the desired filling head 11 to be visible through the transparent sealing component. 7. The shape of the filling head 11 can be directly seen. The irregular cover plate 71 and the plug block 72 are integrally formed. The irregular cover plate 71 and the plug block 72 can cover the slot 5, the storage slot 6 and the arc groove 8 to seal the inside. This allows the unused filling head 11 to be in a closed space and avoid contamination. The adapter groove 73 on the plug block 72 is adapted to the two first arc-shaped spring pieces 9 and is elastically clamped between the two first arc-shaped spring pieces 9. The plug block 72 and the first arc-shaped spring pieces 9 are interference fit, which can play a certain positioning role for the sealing component 7. When removing the sealing component 7, you only need to use your fingers to hold the end of the irregular cover plate 71 near the plug block 72 to quickly remove the sealing component 7.

[0026] A cylindrical block 12 is fixedly connected to the side of the rectangular rod 3 away from the magnet 13. A cap 15 is connected to each side of the handle 1. The cap 15 is interference-fitted onto the cylindrical block 12. The cylindrical block 12 makes it easy to pinch with fingers to pull the rectangular rod 3 out of the rectangular groove 2, and also makes it easy to install the cap 15.

[0027] The rectangular rod 3 has chamfered edges at all four corners, and the rectangular rod 3 and the rectangular groove 2 are compatible inside. The handle 1 has anti-slip texture on its outer end. The chamfered edges of the rectangular rod 3 and the rectangular groove 2 are more rounded, making them more comfortable to use. The anti-slip texture can improve the stability of holding the handle 1.

[0028] Working principle:

[0029] Each rectangular rod 3 is equipped with four different types of filling heads 11. In use, first remove the cap 15, then pinch the cylindrical block 12 to pull the rectangular rod 3 out of the rectangular groove 2. Next, select the desired filling head 11. After determining the required filling head 11, lift the sealing component 7 corresponding to that filling head 11. At this point, the required filling head 11 is exposed. Then, insert your fingers into the arc-shaped groove 8, pinch the filling head 11, and pull it out forcefully. During the pulling process, the filling head 11 will compress the two second arc-shaped spring pieces 10, causing them to undergo elastic deformation. Once the filling head 11 is pulled out from the two second arc-shaped spring pieces 10... After the second arc-shaped spring 10 is released from the second arc-shaped spring 10, the second arc-shaped spring 10 will return to its original shape. Then the filling head 11 will rotate 180 degrees. During this time, the filling head 11 will squeeze the two first arc-shaped springs 9 and cause them to undergo elastic deformation. The two first arc-shaped springs 9 will continue to clamp the filling head 11 so that it will not easily rotate. Push the rectangular rod 3 back into the rectangular groove 2. The magnet 13 on the rectangular rod 3 will magnetically attract the iron piece 14 in the rectangular groove 2 so that the rectangular rod 3 will not easily detach from the rectangular groove 2. Then, you can use the extended filling head 11 by holding the handle 1.

Claims

1. A new type of resin filling instrument comprising a handle (1), characterized in that: The handle (1) is provided with a rectangular slot (2) on both sides, a rectangular rod (3) is installed in the rectangular slot (2), the four sides of the rectangular rod (3) are provided with a clamping groove (5) and a storage groove (6), the clamping groove (5) is located on one side of the storage groove (6), a filling head (11) is movably connected to the clamping groove (5) through a damping rotating shaft, the filling head (11) extends into the storage groove (6), two first arc-shaped elastic sheets (9) and two second arc-shaped elastic sheets (10) are fixedly connected to the inner wall of the clamping groove (5), the first arc-shaped elastic sheet (9) is located on one side of the second arc-shaped elastic sheet (10), the outer side of the second arc-shaped elastic sheet (10) is in contact with the outer end of the filling head (11), an iron sheet (14) is embeddedly connected to the inner wall of the rectangular slot (2), a magnet (13) is embeddedly connected to the side of the rectangular rod (3) close to the iron sheet (14), and the magnet (13) and the iron sheet (14) are magnetically attracted.

2. A novel resin filling device according to claim 1, characterized in that, Arc-shaped grooves (8) are arranged on the two side walls of the clamping groove (5).

3. A novel resin filling device according to claim 2, characterized in that, A sealing assembly (7) is embeddedly connected to each of the four sides of the rectangular rod (3), the sealing assembly (7) comprises a special-shaped cover plate (71), the special-shaped cover plate (71) is embeddedly fitted in the clamping groove (5), the storage groove (6) and the arc-shaped groove (8), a plug (72) is fixedly connected to one side of the bottom of the special-shaped cover plate (71), the plug (72) is located in the clamping groove (5), the plug (72) is located on one side of the filling head (11), the plug (72) is located between the two first arc-shaped elastic sheets (9), two adaptive grooves (73) are formed in the outer end of the plug (72), and the outer end of the first arc-shaped elastic sheet (9) is in contact with the inner wall of the adaptive groove (73).

4. The resin filler according to claim 1, wherein A cylindrical block (12) is fixedly connected to the side of the rectangular rod (3) away from the magnet (13), a plug cap (15) is connected to each of the two sides of the handle (1), and the plug cap (15) is sleeved on the cylindrical block (12) in an interference fit.

5. The resin filler according to claim 1, wherein Chamfers are formed at the four corners of the rectangular rod (3), the rectangular rod (3) and the rectangular slot (2) are matched with each other, and anti-skid lines are formed on the outer end of the handle (1). Chamfers are formed at the four corners of the rectangular rod (3), the rectangular rod (3) and the rectangular slot (2) are matched with each other, and anti-skid lines are formed on the outer end of the handle (1).

Citation Information

Patent Citations

  • Resin filler

    CN215960370U