A file holder for machine use

CN224820900UActive Publication Date: 2026-10-09CHANGZHOU UNITED DENTAL MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202522049055.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-10-09
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

在根管预备出台阶后,需要手动调整机用根管锉的位置,使其越过根管台阶,由于机用根管锉非常小,徒手使用往往会带来操作不便,尤其是对于口腔内部偏里的牙齿,缺少可以夹持机用根管锉的装置

Benefits of technology

[0011]本实用新型的有益效果是:这种机用根管锉夹持器的结构为模块化设计,其拉线卡片等易损件可以自由替换,结构上操作简单,降低口腔医生的学习成本,降低操作失误,具有效率高的效果。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of root canal file clamp, especially a kind of machine root canal file holder.This machine root canal file holder includes handle, the head component for clamping and disassembling machine root canal file is equipped in the front end of handle, sliding button is equipped on handle, and sliding button is connected with head component by the mechanism of clamping and disassembling machine root canal file of control head component.This machine root canal file holder is modular design, and its pull line card and other perishable parts can be freely replaced, and it is simple in structure, reduces the learning cost of dentist, reduces operation failure, and has the effect of high efficiency.
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Description

Technical Field

[0001] This utility model relates to a root canal file holder, and more particularly to a machine-operated root canal file holder. Background Technology

[0002] With the development of basic medical technology research, root canal treatment has gradually become a modern clinical treatment technique with a complete theoretical system, standardized operating procedures, standardized instruments, and an efficacy rate of over 90%. As root canal treatment has improved, root canal files are now divided into hand-operated and machine-operated types. After creating a step in the root canal preparation, the position of the machine-operated file needs to be manually adjusted to overcome the step. Because machine-operated files are very small, manual use often leads to inconvenience, especially for teeth located deep inside the mouth, where there is a lack of a device to hold the file. Currently, most root canal file holders on the market are designed for hand-operated files and only offer one-way tightening, failing to provide bidirectional tightening. This poses a risk of the file falling into the patient's mouth due to inadequate tightening, potentially causing medical accidents. Therefore, there is an urgent need to design a machine-operated root canal file holder. Utility Model Content

[0003] The present invention aims to solve the above-mentioned defects and provide a machine-made root canal file holder.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by this utility model to solve its technical problem is: this machine root canal file holder includes a handle, the front end of the handle is provided with a head assembly for clamping and disassembling the machine root canal file, the handle is provided with a sliding button, the sliding button is connected to the head assembly, and the clamping and disassembling of the machine root canal file is realized by controlling the head assembly.

[0005] According to another embodiment of the present invention, the sliding button is further provided with a waist-shaped hole, which is connected to the handle through a handle pin, and the bottom side of the sliding button is welded to the traction hook.

[0006] According to another embodiment of the present invention, the head assembly is further connected to the front end of the handle via a tightening cap. The head assembly includes an adapter bend, a head clamping block, a pull cable, a return spring, a card, and a card guide pin. The front end of the adapter bend is connected to the head clamping block. The interior of the adapter bend has a through hole for inserting the pull cable. One end of the pull cable is connected to the traction hook on the sliding button, and the other end is connected to the card. The head clamping block is L-shaped, with a D-shaped hole for inserting a machine root canal file in the vertical direction, and an internal threaded hole for connecting the adapter bend at one end in the horizontal direction, and a long groove for placing the card at the other end. The card has a semi-circular through hole for locking the groove on the handle of the machine root canal file. The card also has an oblong hole, and a card guide pin is connected inside the oblong hole. The card guide pin is connected to the head clamping block. The return spring is mounted on the pull cable, with one end abutting against the card and the other end abutting against the threaded end of the adapter bend.

[0007] According to another embodiment of the present invention, one end of the adapter bend is threaded and threadedly connected to the head clamping block, and the other end is a tubular feature with protrusions and a step. After being inserted into the corresponding hole and groove of the handle, it is screwed into the external thread of the front end of the handle with a tightening cap and pressed on the step of the adapter bend for connection.

[0008] According to another embodiment of the present invention, the pull wire is further welded to the card.

[0009] According to another embodiment of the present invention, the card is further provided with a circular through hole for locking the handle groove of the machine root canal file.

[0010] According to another embodiment of the present invention, the length of the waist-shaped hole is consistent with the travel length of the sliding button.

[0011] The beneficial effects of this utility model are: the structure of this machine-operated root canal file holder is modular, and its easily damaged parts such as the pull wire card can be freely replaced. The structure is simple to operate, reducing the learning cost for dentists, reducing operational errors, and achieving high efficiency. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Schematic diagram of the structure in the AA direction; Figure 3 yes Figure 2 A magnified structural diagram of section I; Figure 4This is a structural schematic diagram of the cross-sectional view of the head clamping block; Figure 5 This is a schematic diagram of the structure of the pull-wire connecting card; Figure 6 This is a schematic diagram of the transition bend; The components include: 1. Handle, 2. Head assembly, 3. Sliding button, 4. Traction hook, 5. Pull cable, 6. Handle pin, 7. Tightening cap, 8. Adapter bend, 9. Head clamping block, 10. Return spring, 11. Card, 12. Card guide pin, 13. Machine root canal file, 14. Semi-circular through hole, 15. Waist-shaped hole. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the protection scope of this utility model.

[0015] like Figure 1 , 2The figure shows a mechanical root canal file holder, including a handle 1, which is a gripping mechanism with knurled details for easy handling. The front end of the handle 1 has a head assembly 2 for clamping and removing the mechanical root canal file 13. A sliding button 3 is also provided on the handle 1, connected to the head assembly 2. The head assembly 2 controls the clamping and removal of the mechanical root canal file 13. The head assembly is used for clamping and removing the mechanical root canal file. This mechanism mainly includes clamping the mechanical root canal file 13 and releasing it. Specifically, the head assembly 2 is connected to the front end of the handle 1 via a clamping cap 7. The head assembly 2 includes an adapter bend 8, a head clamping block 9, a pull cable 5, a return spring 10, a clip 11, and a clip guide pin 12. The front end of the adapter bend 8 is connected to... The head clamping block 9 and the adapter bend 8 have through holes for inserting the pull wire 5. One end of the pull wire 5 is connected to the traction hook 4 on the sliding button 3 and the other end is connected to the card 11. The head clamping block 9 is L-shaped in appearance. It has a D-shaped hole for inserting a machine root canal file in the vertical direction. One end of the horizontal direction has an internal threaded hole for connecting the adapter bend 8 and the other end has a long groove for placing the card 11. The card 11 has a semi-circular through hole 14 for locking the groove of the handle on the machine root canal file 13. The card 11 also has a waist-shaped hole 15. The waist-shaped hole 15 is connected to the card guide pin 12 and is connected to the head clamping block 9 through the card guide pin 12. The return spring 10 is assembled on the pull wire 5. One end of the spring abuts against the card 11 and the other end abuts against the threaded end of the adapter bend 8. The function of the reset spring 10 is to hold the card in place of the machine root canal file when it is not in operation. When the sliding button is pulled back, the pull cable moves the card backward against the force of the self-resetting spring, and the machine root canal file can be disengaged from the holder.

[0016] The sliding button is used to control the clamping and unclamping of the machine root canal file. The sliding button 3 has a waist-shaped hole and is connected to the handle 1 through the handle pin 6. The bottom side of the sliding button 3 is welded to the traction hook 4.

[0017] One end of the adapter bend 8 is threaded and threadedly connected to the head clamping block 9. The other end is a tubular feature with protrusions and a step. After being inserted into the corresponding hole and groove of the handle, it is screwed into the external thread of the front end of the handle 1 using a tightening cap 7, and pressed onto the step of the adapter bend 8 for connection. The advantage of this structural design is that it reduces the molding difficulty, decomposing the one-piece design into a modular design, which is easy to manufacture and assemble in terms of process.

[0018] A pull wire is used to connect the card and the sliding button; pull wire 5 is soldered to card 11.

[0019] Card 11 has a circular through hole on its exterior, which is used to hold the handle groove of the machine root canal file, thereby clamping the machine root canal file and preventing it from falling off. In addition, it also has a waist-shaped hole, which is connected to the head clamping block through the card guide pin. The length of the waist-shaped hole depends on the travel of the sliding button.

[0020] In practical use: First, prepare a sterilized mechanical root canal file holder and root canal file; Second, manually press the sliding button 3, and the traction hook 4 will pull the pull line 5 and the card 11; Third, insert the machine-made root canal file into the head clamping block 9 in the direction of the notch, release the sliding button 3, and check whether the machine-made root canal file 13 has fallen off. Fourth, hold the handle 1 of the clamp and insert the machine-made root canal file 13 into the patient's root canal for positioning; Fifth, after completing the above operations, manually press the sliding button 3 to lift the clamping block 9 at the head of the clamp and remove the clamp.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mechanical root canal file holder, comprising a handle (1), characterized in that: The front end of the handle (1) is provided with a head assembly (2) for clamping and removing the machine root canal file (13). The handle (1) is provided with a sliding button (3), which is connected to the head assembly (2). The machine root canal file (13) can be clamped and removed by controlling the head assembly (2).

2. The machine-operated root canal file holder as described in claim 1, characterized in that: The sliding button (3) has a waist-shaped hole, which is connected to the handle (1) through the handle pin (6). The bottom side of the sliding button (3) is welded to the traction hook (4).

3. The machine-operated root canal file holder as described in claim 1, characterized in that: The head assembly (2) is connected to the front end of the handle (1) via a clamping cap (7). The head assembly (2) includes an adapter bend (8), a head clamping block (9), a pull wire (5), a return spring (10), a card (11), and a card guide pin (12). The front end of the adapter bend (8) is connected to the head clamping block (9). The interior of the adapter bend (8) is provided with a through hole for inserting the pull wire (5). One end of the pull wire (5) is connected to the traction hook (4) on the sliding button (3), and the other end is connected to the card (11). The head clamping block (9) is L-shaped and has a vertically arranged part for inserting a root for the machine. The D-shaped hole of the tube file has an internal threaded hole at one end in the horizontal direction for connecting the adapter bend (8) and a long groove at the other end for placing the card (11). The card (11) has a semi-circular through hole (14) for locking the handle groove on the machine root canal file (13). The card (11) also has a waist-shaped hole (15). The waist-shaped hole (15) is connected to the card guide pin (12). The card guide pin (12) is connected to the head clamping block (9). The reset spring (10) is mounted on the pull wire (5). One end of the spring abuts against the card (11) and the other end abuts against the threaded end of the adapter bend (8).

4. The machine-operated root canal file holder as described in claim 3, characterized in that: One end of the adapter bend (8) is threaded and threaded to the head clamping block (9). The other end is a tubular feature with protrusions and a step. After it is inserted into the corresponding hole and groove of the handle, it is screwed into the external thread of the front end of the handle (1) with a tightening cap (7) and pressed on the step of the adapter bend (8) for connection.

5. The machine-operated root canal file holder as described in claim 3, characterized in that: The pull wire (5) is welded to the card (11).

6. The machine-operated root canal file holder as described in claim 3, characterized in that: The card (11) has a circular through hole on its exterior for locking the handle groove of the machine root canal file.

7. The machine-operated root canal file holder as described in claim 3, characterized in that: The length of the waist-shaped hole (15) is consistent with the stroke length of the sliding button (3).