Root canal therapy instrument

By using an internal steel wire treatment head with a central axis-less design and non-metallic connectors, the problem of spread in traditional root canal treatment instruments is solved, the treatment range is increased, patient injury and the risk of entrapment are reduced, and the stability of the connection is improved.

CN223554981UActive Publication Date: 2025-11-18BEIJING RUIHAO MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422979791.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-18
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

Traditional root canal instruments have treatment tips that cannot be expanded and opened, resulting in a small treatment area. They are also prone to getting stuck and folding inside the root canal, and their sharp tips can easily cut patients.

Method used

The treatment head features an internal steel wire without a central axis design. The bottom of the internal steel wire is unrestrained, while the outer steel wire is wound into a spiral shape with a concave design. The circular connector has raised dots around it to increase friction. The connector is made of non-metallic material to allow free rotation and avoid jamming.

Benefits of technology

It improves the flexibility and cleaning area of ​​the treatment head, reduces patient injury, enhances the stability of the connection, and prevents the treatment head from folding inside the root canal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a root canal treatment instrument which comprises an outer steel wire treatment head, the treatment head comprises an inner steel wire and an outer steel wire wound outside the inner steel wire, the bottom end of the inner steel wire is in a scattered shape when in use, a circular plate is fixed at the top end of the treatment head, and a circular connecting piece is fixed at the top of the circular plate and used for being connected with a machine. Compared with the prior art, a middle shaft is removed, the inner steel wires are automatically wound together, the bottom ends of the inner steel wires are in a scattered state when used, the inner steel wires become a small brush when driven at a high speed by a motor, and the inner steel wires are softer and more scattered than the inner steel wires with the middle shaft, so that the inner steel wires are more flexible and more uniform. A patient cannot be cut, cleaning is cleaner, and the area is larger.
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Description

TECHNICAL FIELD

[0001] The utility model relates to dental treatment technical field, especially root canal treatment instrument. BACKGROUND

[0002] Modern endodontic therapy involves removing damaged dental pulp, followed by cleaning and shaping the root canal space, irrigating and filling biocompatible materials such as gutta-percha and root canal sealers.

[0003] Traditional root canal treatment instruments are all made of nickel-titanium material, and the front ends are all ground into blades, which are very sharp and can easily cause injury, and the use effect needs to be improved.

[0004] In addition, the connection between the traditional treatment head and the driver has a buckle inside, and because they are all made of nickel-titanium structure, if there is a jam during the treatment process, the front end and the end will fight, and finally the treatment head will be folded in the root canal, and the end of the traditional treatment head cannot be expanded and opened, and the treatment range is small. UTILITY MODEL CONTENT

[0005] In view of the defects in the prior art, the technical problems solved by the utility model are: first, the end of the treatment head cannot be expanded and opened, the treatment range is small, second, the front end and the end will fight during the treatment process, and finally the treatment head will be folded in the root canal, third, the front end is all ground into a blade, which is very sharp and can easily cause injury to the patient during the treatment process, therefore, a root canal treatment instrument is provided.

[0006] To achieve the above purpose, the utility model provides:

[0007] The root canal treatment instrument comprises an outer steel wire treatment head, the treatment head comprises an inner steel wire and an outer steel wire wound outside the inner steel wire, the bottom end of the inner steel wire is in a non-binding state, and the top end of the treatment head is fixed with a circular plate.

[0008] Preferably, the inner steel wire is provided with 2-10 roots, and the bottom end can be scattered with the rotation of the treatment head.

[0009] Preferably, the inner steel wire is provided with 7 roots.

[0010] Preferably, the outer steel wire is provided with 1 root, one end of the outer steel wire winds and binds the top end of the inner steel wire, and the other end is fixedly connected with the circular plate.

[0011] Preferably, the outer steel wire is in a spiral shape.

[0012] Compared with existing technologies, this application removes the central axis, allowing the inner steel wires to automatically wind together, with the bottom end in a free state. When the motor drives at high speed, it also becomes a small brush. The advantage is that it is softer and spreads more widely than the one with a central axis, so it will not cut the patient, and it will clean more thoroughly and cover a larger area.

[0013] Preferably, the outer side of the inner steel wire is provided with a recess that has been processed by a recessing process.

[0014] Compared with existing technologies, the inner steel wires are indented, which increases friction and makes cleaning more effective.

[0015] Preferably, the outer side of the circular connector is uniformly provided with protrusions, which are made of non-metallic material, to improve the friction between the circular connector and the machine.

[0016] Compared with existing technologies, the circular connector of the connector is made with small raised dots around it to increase the friction between the head connection and the drive handle connection, making it more stable. In addition, the non-metallic material setting can ensure that the circular connector is not rigidly connected to the machine. If the treatment head inside gets stuck, it can still rotate relative to the machine, i.e., idle, so that the treatment head does not break in the root canal.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. Remove the central axis, allowing the inner steel wires to automatically wind together. The bottom end is unrestrained, and when the motor drives at high speed, it becomes a small brush. The advantage is that it is softer and spreads more widely than the one with a central axis, so it will not cut the patient. It will clean more thoroughly and cover a larger area.

[0019] 2. The inner steel wires are reinforced with a recessed design, which increases friction and makes cleaning more effective.

[0020] 3. The circular connector of the joint is made with small raised dots around it to increase the friction between the head connection and the drive handle connection, making it more stable. In addition, the non-metallic material ensures that the circular connector is not rigidly connected to the machine. If the treatment head gets stuck inside, it can still rotate relative to the machine, i.e., spin freely, so that the treatment head does not break in the root canal. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of this design;

[0022] Figure 2 For this design Figure 1 A cross-sectional structural diagram.

[0023] Fig. 1, outer steel wire; 11, inner steel wire; 2, recess; 3, round plate; 31, round connecting piece. DETAILED DESCRIPTION

[0024] The embodiments of the utility model will be further explained in detail below with reference to the drawings.

[0025] Referring to Figures 1-2 As shown, the root canal treatment instrument comprises an outer steel wire treatment head, the treatment head comprises an inner steel wire 11 and an outer steel wire 1 wound outside the inner steel wire 11, the bottom end of the inner steel wire 11 is in a scattered state due to rotational inertia when in use, the top end of the treatment head is fixed with a round plate 3, and the top of the round plate 3 is fixed with a round connecting piece 31 for connection with a machine;

[0026] Compared with the prior art, the inner steel wire 11 is automatically wound together without a middle shaft, the bottom end is not restricted, is in a scattered state when in use, the rotational speed of the treatment head controlled by the machine is 4000-10000 / s, the inner steel wire 11 becomes a small brush, and the advantage is that the inner steel wire 11 is softer and more scattered than the inner steel wire 11 with a middle shaft, the patient is not cut, the cleaning is cleaner, and the area is larger.

[0027] The inner steel wire 11 is provided with 2-10 inner steel wires. According to actual treatment conditions, the inner steel wire 11 can be made into 2, 3, 4, 5, 6, 7, 8, 9, 10 or 9 types. The outer steel wire 1 is provided with one outer steel wire, one end of the outer steel wire winds and restricts the top end of the inner steel wire 11, and the other end is fixedly connected with the round plate 3. The outer steel wire 1 is in a spiral shape.

[0028] The outer steel wire 1 can be fixed with the round plate 3 by an adhesive method.

[0029] In the embodiment, the outer side of the inner steel wire 11 is provided with a recess 2 treated by a recess process.

[0030] Compared with the prior art, the recess process is added to the wound inner steel wire 11, so that the inner steel wire 11 has recesses to increase the friction, and the cleaning is cleaner.

[0031] In the embodiment, the outer side of the round connecting piece 31 is uniformly provided with a convex point 32, the convex point 32 is a non-metallic material, and the friction between the round connecting piece 31 and the machine is improved.

[0032] Compared with the prior art, the small dot protrusion treatment is made around the part of the circular connector 31 of the joint, the friction between the head connector and the driving handle connector is increased, it is more stable, and the non-metal material is arranged, the circular connector is non-rigidly connected with the machine, once the treatment head in the machine is stuck, the relative rotation between the treatment head and the machine can be realized, that is, the treatment head is not folded in the root canal.

[0033] The utility model is not only limited to the above-mentioned best implementation, and anyone can draw other various forms of products under the enlightenment of the utility model, but no matter make any change in its shape or structure, any technical scheme with the same or similar utility model is within the protection scope.

Claims

1. A root canal treatment instrument, including an external wire treatment head, characterized in that: The treatment head consists of an inner steel wire (11) and an outer steel wire (1) wrapped around the inner steel wire (11). The bottom end of the inner steel wire (11) is in a non-restrained state. A circular plate (3) is fixed to the top of the treatment head. A circular connector (31) is fixed to the top of the circular plate (3) for connecting to the machine.

2. The root canal treatment instrument according to claim 1, characterized in that: The inner steel wire (11) is provided with 2-10 wires, the bottom of which can spread out as the treatment head rotates.

3. The root canal treatment instrument according to claim 2, characterized in that: The inner steel wire (11) is provided with 7 strands.

4. The root canal treatment instrument according to claim 1, characterized in that: One outer steel wire (1) is provided, one end of which wraps around and binds the top end of the inner steel wire (11), and the other end is fixedly connected to the circular plate (3).

5. The root canal treatment instrument according to claim 1, characterized in that: The outer steel wire (1) is spiral-shaped.

6. The root canal treatment instrument according to claim 1, characterized in that: The outer side of the inner steel wire (11) is provided with a recess (2) that has been processed by a recessing process.

7. The root canal treatment instrument according to claim 1, characterized in that: The outer side of the circular connector (31) is uniformly provided with protrusions (32), which are made of non-metallic material.