Flushing auxiliary instrument for deciduous tooth root canal treatment

Abstract

The utility model relates to the technical field of deciduous tooth root canal treatment, in particular to a flushing auxiliary instrument for deciduous tooth root canal treatment, which comprises an injection needle body, a cylinder is arranged at the mounting end of the injection needle body, external threads are arranged on the outer surface of the cylinder, and a plug is arranged in the cylinder. The interior of the plug is of a hollow structure and is installed on the inner wall of the injection needle body in a communicated mode, the injection end of the injection needle body is arranged to be an oval pointed end, a plurality of flushing holes are evenly formed in the outer side wall of the oval pointed end, and the installation end of the injection needle body is installed on an externally-connected injector body. According to the utility model, the resistance mood of children can be avoided, a threaded retention syringe or a pluggable retention syringe can be selected according to clinical practice, and meanwhile, the bending angle of the syringe needle body can be adjusted according to different orientations of the root canals of the deciduous molar teeth for pre-bending, so that the flushing efficiency of the root canals in different orientations under non-direct vision is improved.

Description

Technical Field

[0001] This utility model relates to the field of primary tooth root canal treatment technology, and in particular to an irrigation auxiliary device for primary tooth root canal treatment. Background Technology

[0002] In current etiology-based root canal treatment, mechanical and chemical preparation methods are often used to effectively remove infected material from the root canal system. The importance of root canal irrigation instruments that can efficiently, safely, non-invasively, and conveniently transport root canal irrigation solution to the intended location is self-evident. Commonly used root canal irrigation instruments include ultrasonic irrigators and irrigation syringes and needles.

[0003] Among them, ultrasound therapy devices use two types of transducers: magnetically extensible and subelectric ceramic. The disadvantage is that both types of transducers generate additional sharp noise when working, which increases the difficulty for children to accept and easily causes resistance in children.

[0004] When using irrigation syringes and needles, syringes with 27-gauge irrigation needles are commonly inserted into mechanically prepared root canals for irrigation. The disadvantages are that both the 27-gauge irrigation needle and the single-sided opening root canal irrigation needle are made of metal. During root canal treatment, especially in pediatric patients, this can easily evoke associations with intravenous or intramuscular injections, leading to dental phobias such as tension, fear, and anxiety, and causing resistance in children. On the other hand, single-sided opening irrigation needles cannot be pre-bent, resulting in inadequate irrigation fluid delivery when irrigating curved root canals. Furthermore, the installation method for irrigation needles is relatively simple, only compatible with a single commonly used syringe. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency to provoke resistance in children and the limited installation methods of the irrigation needles, which can only be used with commonly used single syringes. Therefore, this invention proposes an irrigation auxiliary device for root canal treatment of deciduous teeth.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design an irrigation aid for root canal treatment of deciduous teeth, comprising an injection needle body, characterized in that,

[0008] The mounting end of the injection needle body is set as a cylinder, the outer surface of the cylinder is provided with external threads, and the inside of the cylinder is provided with a plug, the inside of the plug is a hollow structure and is connected to the inner wall of the injection needle body.

[0009] The injection end of the injection needle body is set as an elliptical tip, and a plurality of rinsing holes are evenly arranged on the outer side wall of the elliptical tip.

[0010] The mounting end of the injection needle body is mounted on the external syringe body.

[0011] Preferably, the total length of the injection needle body is 21 mm, and the material is polytetrafluoroethylene.

[0012] Preferably, the external syringe body is a threaded-lock syringe or a plug-in-lock syringe.

[0013] Preferably, the injection needle body is fixedly mounted on an externally connected threaded syringe via an external threaded screw.

[0014] Preferably, the injection needle body can also be installed on an external pluggable fixed syringe via a plug-in connector.

[0015] Preferably, the end diameter of the elliptical tip is 0.27 mm and the taper is 4%.

[0016] Preferably, the sidewall of the injection needle body is engraved with three scale lines, which represent 18 mm, 17 mm and 16 mm from top to bottom respectively.

[0017] The present invention provides an irrigation auxiliary device for root canal treatment of deciduous teeth, which has the following advantages: The present invention is equipped with an injection needle body 10 with a total length of 21 mm, which is made of polytetrafluoroethylene material, making it soft and flexible, effectively avoiding potential punctures from metal irrigation needles and preventing resistance from children. At the same time, it is resistant to high temperature, high pressure and corrosion, and can withstand pre-vacuum high temperature and high pressure sterilization.

[0018] This invention also features an external thread and a plug, which allows for alternating mechanical preparation and irrigation of the root canal once the working length is determined during the root canal preparation procedure. Depending on clinical practice, a threaded retention syringe or a plug-in retention syringe can be selected.

[0019] This invention features a short, smooth transition between the injection end and the mounting end on the injection needle body, which facilitates root canal irrigation of deciduous molars in children with small mouth openings. At the same time, the bending angle of the injection needle body can be adjusted according to the different orientations of the root canals of the deciduous molars to improve the irrigation efficiency of root canals with different orientations under non-direct vision. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an irrigation auxiliary device for root canal treatment of deciduous teeth proposed in this utility model;

[0021] Figure 2This is a partially enlarged structural diagram of a method for root canal treatment of deciduous teeth proposed in this utility model;

[0022] Figure 3 This is a partially enlarged structural diagram of B, a method for root canal treatment of deciduous teeth proposed in this utility model.

[0023] In the diagram: 10. Injection needle body; 21. Cylinder; 22. External thread; 23. Plug; 31. Elliptical tip; 32. Flushing hole; 41. Threaded retention syringe; 42. Insertion and removal retention syringe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-3 An irrigation aid for root canal treatment of deciduous teeth, comprising an injection needle body 10, characterized in that,

[0026] The mounting end of the injection needle body 10 is configured as a cylinder 21. The outer surface of the cylinder 21 is provided with an external thread 22. The inside of the cylinder 21 is provided with a plug 23. The inside of the plug 23 is a hollow structure and is connected to the inner wall of the injection needle body 10.

[0027] The injection end of the injection needle body 10 is configured as an elliptical tip 31, and a plurality of rinsing holes 32 are uniformly arranged on the outer side wall of the elliptical tip 31.

[0028] The mounting end of the injection needle body 10 is mounted on the external syringe body.

[0029] As an optimized solution in this embodiment, the total length of the injection needle body 10 is 21 mm, and the material is polytetrafluoroethylene, which is soft and easy to bend.

[0030] As an optimized solution in this embodiment, the external syringe body is a threaded fixed syringe 41 or a plug-in fixed syringe 42.

[0031] As an optimized solution of this embodiment, the injection needle body 10 is screw-fixed on the externally connected threaded syringe 41 by the external thread 22.

[0032] As an optimized solution of this embodiment, the injection needle body 10 can also be installed on an external pluggable fixed syringe 42 by plugging in the plug 23.

[0033] As an optimized solution in this embodiment, the end diameter of the elliptical tip 31 is 0.27 mm and the taper is 4%.

[0034] As an optimization of this embodiment, three scale lines are engraved on the side wall of the injection needle body 10, representing 18 mm, 17 mm and 16 mm respectively from top to bottom.

[0035] The overall workflow of this utility model is as follows:

[0036] The injection needle body is 21 mm in total length and is made of polytetrafluoroethylene (PTFE). It is soft and flexible, effectively avoiding potential punctures from metal flushing needles. It is also resistant to high temperature, high pressure and corrosion, and can withstand pre-vacuum high temperature and high pressure sterilization.

[0037] During the root canal preparation procedure, once the working length of the root canal is determined, mechanical preparation and root canal irrigation will be performed alternately. Depending on the clinical situation, if a threaded retention syringe 41 is selected, the injection needle body 10 will be screwed in for retention. If a pull-out retention syringe 42 is selected, it will be inserted and tightened.

[0038] Based on the clinically measured working length of the root canal, the insertion depth of the irrigation needle is determined. Based on the statistical results of the root length of primary anterior teeth, primary canines, and primary molars in oral anatomy, depth scales are marked, from top to bottom, representing depths of 18 mm, 17 mm, and 16 mm, respectively. If the measured working length is not within the scale range, a rubber stopper can be added to the machine-made nickel-titanium root canal preparation instrument (the irrigation needle is designed with a 4% taper at the end, the same as the taper at the end of the nickel-titanium root canal preparation instrument) to determine the irrigation depth.

[0039] The short, smooth transition between the injection end and the mounting end on the injection needle body 10 facilitates root canal irrigation of deciduous molars in children with small mouth openings. At the same time, the bending angle of the injection needle body 10 can be adjusted according to the different orientations of the root canals of deciduous molars to improve the irrigation efficiency of root canals in different orientations under non-direct vision.

[0040] Throughout the root canal irrigation process, the design of irrigation holes 32 evenly distributed at the end of the injection needle body 10 without an opening at the injection end facilitates the backflow of irrigation fluid in the root canal and effectively avoids the possibility of irrigation fluid being pumped out of the apical foramen, thus causing chemical burns.

[0041] 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. An auxiliary instrument for flushing of root canal treatment of deciduous teeth, comprising a syringe needle body, characterized in that, the mounting end of the syringe needle body is provided as a cylinder, the outer surface of the cylinder is provided with external threads, and the inside of the cylinder is provided with a plug head, the inside of the plug head is a hollow structure and is communicated with the inner wall of the syringe needle body; the injection end of the syringe needle body is provided as an elliptical sharp head, and a plurality of flushing holes are uniformly arranged on the outer side wall of the elliptical sharp head; the mounting end of the syringe needle body is mounted on an externally connected syringe body.

2. The irrigation aid for root canal treatment of primary teeth according to claim 1, characterized in that, The total length of the syringe needle body is 21 mm, and the material is polytetrafluoroethylene material.

3. The irrigation aid for root canal treatment of primary teeth according to claim 1, characterized in that, The externally connected syringe body is a threaded fixed syringe or a plug-in fixed syringe.

4. The irrigation aid for root canal treatment of primary teeth according to claim 3, characterized in that, The syringe needle body is screw-fixedly mounted on the externally connected threaded fixed syringe through external threads.

5. The irrigation aid for root canal treatment of primary teeth according to claim 3, characterized in that, The syringe needle body can also be plug-connectedly mounted on the externally connected plug-in fixed syringe through the plug head.

6. The irrigation aid for root canal treatment of primary teeth according to claim 1, characterized in that, The diameter of the tip of the elliptical sharp head is 0.27 mm, and the taper is 4%.

7. The irrigation aid for root canal treatment of primary teeth according to claim 1, characterized in that, Three scale lines are engraved on the side wall of the syringe needle body, and from top to bottom, they represent 18 mm, 17 mm and 16 mm respectively.

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