Composite gutta-percha point trimmer
The composite gutta-percha tip trimmer, which integrates a sliding ruler, a feeler gauge and a cutting knife, solves the problem of cumbersome operation of existing tools, realizes precise trimming of gutta-percha tips and gap measurement, and improves work efficiency and accuracy.
Patent Information
- Application Number
- CN202422329241.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Existing gutta-percha tip trimming tools lack an integrated design, which results in cumbersome clinical operations, increased chairside time, and difficulty in controlling the length and shape accuracy of the gutta-percha tip.
A composite gutta-percha tip trimmer was designed, which integrates a sliding ruler, a feeler gauge, and a cutting knife. The sliding ruler is provided with tooth scales and holes for placing gutta-percha tips of different thicknesses. The cutting knife can rotate 360°. Combined with the measuring file and tooth scale, it can achieve precise trimming of gutta-percha tips and gap measurement.
The invention improves the working efficiency of the trimming of the gutta-percha tip, simplifies the operation process, improves the accuracy of the length and shape of the gutta-percha tip, and reduces the discomfort of the patient.
Smart Images

Figure CN223350350U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a gutta-percha tip trimmer, in particular to a composite gutta-percha tip trimmer. Background Art
[0002] Root canal therapy is the most common and effective treatment for endodontic and periapical diseases in dentistry. Currently, in clinical practice, gutta-percha tips must be trimmed to fit into the root canal. However, existing measuring and trimming tools lack dual-end adaptability, nor do they offer integrated measurement and trimming capabilities. This often requires a gutta-percha measuring ruler, scissors, and a gutta-percha tip trimmer. This complicates the clinician's procedure, increases chairside time, and increases patient discomfort. Furthermore, the accuracy of the gutta-percha tip length and the shape of the trimmed tip end are also challenging.
[0003] A feeler gauge is a measuring tool primarily used to measure interdental spacing. Dental aesthetic gauges are independent instruments, and there are currently no endodontic devices that combine a gutta-percha tip trimmer and a feeler gauge. Utility Model Content
[0004] The utility model aims to solve the above-mentioned defects and provides a composite gutta-percha tip trimmer.
[0005] In order to overcome the defects existing in the background technology, the technical solution adopted by the present invention to solve its technical problems is: this composite gutta-percha tip trimmer includes a sliding ruler, one side of the sliding ruler is connected to a feeler gauge by a hand screw, and the other side is connected to a cutting knife, the other side of the sliding ruler is provided with an upper track, the upper track is provided with holes of various sizes for placing gutta-percha tips of different thicknesses, the cutting knife includes a knife holder and a blade mounted on the knife holder, the knife holder is provided with a rectangular groove for accommodating the upper track, and the blade is located in the rectangular groove.
[0006] According to another embodiment of the present invention, the other side surface of the sliding ruler is further provided with scales for measuring files and teeth.
[0007] According to another embodiment of the present invention, two pins for limiting the cutting knife are further provided on the other side surface of the sliding ruler, respectively located at the two ends of the sliding ruler.
[0008] According to another embodiment of the present invention, the knife holder is further provided with a hook for hanging the cutting knife on the sliding ruler so that the cutting knife can slide on the sliding ruler.
[0009] According to another embodiment of the present invention, the blade is further provided with a first accommodating slot, a second accommodating slot, a third accommodating slot and a fourth accommodating slot located on the tool holder at the rectangular groove, wherein the first accommodating slot and the second accommodating slot are in a cross structure, and the third accommodating slot and the fourth accommodating slot are in a cross structure, and the blade is inserted into the second accommodating slot and the fourth accommodating slot at the same time or into the first accommodating slot and the third accommodating slot at the same time.
[0010] According to another embodiment of the present invention, the number of the blades is 2.
[0011] The beneficial effects of the utility model are as follows: the composite gutta-percha tip trimmer can cut the gutta-percha tip by means of a cutting blade, the feeler gauge can rotate 360 degrees to measure the gap between teeth, and the sliding ruler is also provided with scales for measuring files and teeth, thereby improving working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 It is a structural diagram of the other side of the utility model;
[0015] Figure 3 It is a schematic diagram of the structure of the cutting knife;
[0016] Among them: 1. Thumb screw, 2. Feeler gauge, 3. Sliding ruler, 4. Pin, 5. Tool holder, 6. Blade, 7. Gutta-percha tip, 8. Upper track, 9. Hole, 10. Cutting knife, 11. Receiving slot 1, 12. Receiving slot 2, 13. Hook, 14. Receiving slot 3, 15. Receiving slot 4. DETAILED DESCRIPTION
[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, but not all of them. The embodiments of the basic utility model and all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present utility model.
[0018] The sliding ruler is the main component, with several holes of varying sizes. To cut gutta-percha tips of varying thicknesses, the surface removes the size of commercially available files and adds a tooth-measuring scale and a feeler gauge. One or two blades are loaded into a tool holder, and the sliding ruler's upper guide rails are then used to trim the gutta-percha tips in both directions through the holes on the sliding ruler. A feeler gauge is then placed together and installed using a hand screw or riveting method. The feeler gauge can measure the gaps between teeth, facilitating orthodontic procedures. The specific structure includes a sliding ruler 3, one side of which is connected to a feeler gauge 2 via a hand screw 1, and the other side is connected to a cutting blade 10. The other side of the sliding ruler 3 is provided with an upper rail 8, which is provided with holes 9 of various sizes for receiving gutta-percha tips 7 of varying thicknesses. The cutting blade 10 comprises a tool holder 5 and a blade 6 mounted on the tool holder 5. The tool holder 5 is provided with a rectangular slot that accommodates the upper rail 8, and the blade 6 is positioned within the rectangular slot.
[0019] The other side of the sliding ruler 3 is also provided with scales for measuring files and teeth.
[0020] Two pins 4 for limiting the position of the cutting knife are also provided on the other side of the sliding ruler 3, respectively located at the two ends of the sliding ruler 3. The provision of the pins 4 is mainly used to prevent the cutting knife 10 from sliding off the sliding ruler 3 when sliding left and right.
[0021] The tool holder 5 is provided with hooks 13 for hanging the cutting knife 10 on the sliding ruler 3 so that the cutting knife 10 can slide on the sliding ruler 3. The sliding ruler 3 is inserted between the hooks 13, and the cutting knife 10 can slide left and right on the sliding ruler 3.
[0022] On the tool holder 5, there are provided with a receiving groove 11, a receiving groove 2, a receiving groove 3, 14 and a receiving groove 4, 15 at the rectangular groove for accommodating the blade 6. The receiving groove 11 and the receiving groove 2, 12 are in a cross structure, and the receiving groove 3, 14 and the receiving groove 4, 15 are in a cross structure. The blade 6 is inserted into the receiving groove 2, 12 and the receiving groove 4, 15 at the same time, or into the receiving groove 1, 11 and the receiving groove 3, 14 at the same time.
[0023] like Figure 3 As shown, there are two blades 6 for bidirectional trimming of the gutta-percha tip.
[0024] The specific operations are as follows:
[0025] 1. Install the two cutting blades 6 into the tool holder along the slot on the top of the tool holder, use the positioning tool to hold the blades in place, and then glue the blades together;
[0026] 2. Install the cutting knife 10 onto the sliding ruler 3 and insert the gutta-percha tip for cutting;
[0027] 3. Install several dental feeler gauges onto the sliding ruler using the thumb screws;
[0028] 4. When you need to cut a thicker tip of the dental gum, you need to turn the dental feeler gauge 180°.
[0029] 5. The sliding ruler 3 can directly measure the height and width of the teeth. When you need to measure the gap between teeth, just loosen the screws and unfold it for use.
[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A composite gutta-percha tip trimmer, comprising a sliding ruler (3), characterized in that: One side of the sliding ruler (3) is connected to a feeler gauge (2) via a hand screw (1), and the other side is connected to a cutting knife (10). An upper track (8) is provided on the other side of the sliding ruler (3). The upper track (8) is provided with holes (9) of various sizes for accommodating gum tips (7) of different thicknesses. The cutting knife (10) comprises a knife holder (5) and a blade (6) mounted on the knife holder (5). The knife holder (5) is provided with a rectangular groove for accommodating the upper track (8), and the blade (6) is located in the rectangular groove.
2. A composite gutta-percha tip trimmer according to claim 1, characterized in that: The other side of the sliding ruler (3) is also provided with scales for measuring files and teeth.
3. The composite gutta-percha tip trimmer according to claim 1, characterized in that: Two pins (4) for limiting the position of the cutting knife are further provided on the other side of the sliding ruler (3), and are respectively located at the two ends of the sliding ruler (3).
4. The composite gutta-percha tip trimmer according to claim 1, characterized in that: The knife holder (5) is provided with a hook (13) for hanging the cutting knife (10) on the sliding ruler (3) so that the cutting knife (10) slides on the sliding ruler (3).
5. The composite gutta-percha tip trimmer according to claim 1, characterized in that: The blade holder (5) is provided with a receiving groove 1 (11), a receiving groove 2 (12), a receiving groove 3 (14) and a receiving groove 4 (15) at the rectangular groove for receiving the blade (6). The receiving groove 1 (11) and the receiving groove 2 (12) are in a cross structure, and the receiving groove 3 (14) and the receiving groove 4 (15) are in a cross structure. The blade (6) is inserted into the receiving groove 2 (12) and the receiving groove 4 (15) at the same time or inserted into the receiving groove 1 (11) and the receiving groove 3 (14) at the same time.
6. The composite gutta-percha tip trimmer according to claim 1, characterized in that: The number of the blades (6) is 2.