Heating pipe structure and gutta-percha filling machine

Abstract

The utility model belongs to the technical field of oral treatment instruments, and relates to a heating tube structure which comprises a first heating tube and a second heating tube which are arranged in a split mode, and the first heating tube and the second heating tube are sequentially arranged in the direction away from the gutta-percha extrusion direction. The heat conductivity of the second heating pipe is smaller than that of the first heating pipe; the utility model further relates to a gutta-percha filling machine. According to the technical scheme, the first heating pipe can be used for being connected with a needle head assembly, the second heating pipe is used for being connected with a part with the rear end not needing to be heated, and compared with the technical scheme that a heating pipe of an integrated structure is adopted in the prior art, and the heat conductivity of the whole heating pipe is consistent, the split type heating pipe is adopted, and the heating efficiency is improved. According to the heating pipe structure, heat can be prevented from being conducted to parts which do not need to be heated at the rear end in the using process, energy waste is prevented, the heating efficiency of the heating pipe structure on gutta-percha is improved, and meanwhile the parts which do not need to be heated at the rear end can be prevented from being damaged.

Description

Technical Field

[0001] The present application relates to the technical field of oral treatment instruments, and more specifically, to a heating tube structure and a gutta-percha filling machine. Background Art

[0002] Root canal treatment is a type of dental treatment that aims to remove infected pulp tissue, disinfect the root canal, and fill the root canal with appropriate materials to restore the structure and function of the tooth. A gutta-percha filling machine is a dental medical device used to fill the enlarged root canal with drug materials during root canal treatment so that the filled drug materials fit the root canal wall. However, the heating tube in the existing gutta-percha filling machine is generally made of high thermal conductivity metal. During use, the heat will be conducted to the parts at the back end that do not need to be heated, resulting in energy waste, reducing heating efficiency, and also damaging the parts at the back end that do not need to be heated. Utility Model Content

[0003] The technical problem to be solved by the technical solution of the present application is that the heating tube in the existing gutta-percha filling machine is generally made of metal with high thermal conductivity. During use, the heat will be conducted to the parts at the rear end that do not need to be heated, resulting in energy waste, reducing the heating efficiency, and also damaging the parts at the rear end that do not need to be heated.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a heating pipe structure, which adopts the following technical solution:

[0005] The heating tube structure includes a first heating tube and a second heating tube which are separately arranged. The first heating tube and the second heating tube are arranged in sequence in a direction away from the gutta-percha extrusion direction. The thermal conductivity of the second heating tube is smaller than the thermal conductivity of the first heating tube.

[0006] Furthermore, a heating cavity is provided in the first heating tube, and the second heating tube is provided with a main body and a plug-in portion for being inserted in the heating cavity, and the plug-in portion and the main body are arranged in sequence on the second heating tube toward a direction away from the gutta-percha extrusion direction.

[0007] Furthermore, the first heating tube and the second heating tube are plugged together to form a gutta-percha channel for placing a gutta-percha stick, and the inner diameters of the gutta-percha channel are set to be of equal width.

[0008] Furthermore, a connecting cavity is also provided in the first heating tube, and the heating cavity and the connecting cavity are arranged sequentially in the first heating tube in the direction away from the extrusion direction of the gutta-percha, and the aperture of the connecting cavity is larger than the aperture of the heating cavity, so that a first step is formed between the heating cavity and the connecting cavity, and the outer diameter of the main body is larger than the outer diameter of the plug-in part, so that a second step is formed between the main body and the plug-in part to abut against the first step.

[0009] Furthermore, the heating cavity and the connecting cavity are integrally formed, and the main body and the plug-in portion are integrally formed.

[0010] Furthermore, the first heating tube and the second heating tube are fixed together by interference fit or welding.

[0011] Furthermore, the first heating tube and the second heating tube are fixed together by an interference fit between the plug-in portion and the heating cavity or an interference fit between the main body and the connecting cavity.

[0012] Furthermore, a plurality of solder receiving grooves are provided on the outer peripheral wall of the main body portion located in the connecting cavity, and the first heating tube and the second heating tube are fixed together by welding the main body portion and the inner wall of the connecting cavity.

[0013] Furthermore, the connecting cavity is provided with a notch for fixing the temperature sampling line.

[0014] In order to solve the above-mentioned technical problems, the technical solution of the present application also provides a gutta-percha filling machine, which adopts the technical solution described below: the gutta-percha filling machine includes a needle assembly, an extrusion mechanism and the heating tube structure, the end of the first heating tube away from the second heating tube is connected to the needle assembly, and the extrusion mechanism is arranged on the end of the second heating tube away from the first heating tube.

[0015] Compared with the prior art, the technical solution of the present application mainly has the following beneficial effects: the first heating tube and the second heating tube of the present application are arranged in sequence in the direction away from the extrusion direction of the gutta-percha, so the first heating tube is used to connect the needle assembly, and the second heating tube is used to connect the parts that do not need to be heated at the rear end, such as: the extrusion mechanism for extruding the gutta-percha. Compared with the prior art which uses an integrated heating tube and the thermal conductivity of the entire heating tube is consistent, the present application uses a split heating tube, that is, the first heating tube and the second heating tube are arranged, and the thermal conductivity of the second heating tube is smaller than the thermal conductivity of the first heating tube. Therefore, during use, heat is avoided from being conducted to the parts that do not need to be heated at the rear end, thereby preventing energy waste, improving the heating efficiency of the heating tube structure for the gutta-percha, and at the same time preventing damage to the parts that do not need to be heated at the rear end. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the scheme of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1is a structural schematic diagram of a heating tube structure in an embodiment of the present application;

[0018] Figure 2 is an exploded view of the heating tube structure in the embodiment of the present application;

[0019] Figure 3 This is one of the cross-sectional views of the heating tube structure in the embodiment of the present application;

[0020] Figure 4 This is the second cross-sectional view of the heating tube structure in the embodiment of the present application;

[0021] Figure 5 is a schematic structural diagram of the first heating tube in an embodiment of the present application;

[0022] Figure 6 is a schematic diagram of the structure of the second heating tube in the embodiment of the present application;

[0023] Figure 7 It is a cross-sectional view of the gutta-percha filling machine in the embodiment of the present application.

[0024] Figure numerals: 1. first heating tube; 11. heating chamber; 12. connecting chamber; 13. first step; 14. notch; 2. second heating tube; 21. main body; 22. plug-in portion; 23. second step; 24. solder receiving groove; 3. needle assembly; 4. extrusion mechanism. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] Please see attached Figure 1-Figure 7 , the embodiment of the present application provides a heating tube structure, the heating tube structure includes a first heating tube 1 and a second heating tube 2 which are separately arranged, the first heating tube 1 and the second heating tube 2 are sequentially arranged in a direction away from the extrusion direction of the gutta-percha, and the thermal conductivity of the second heating tube 2 is less than the thermal conductivity of the first heating tube 1. The first heating tube 1 and the second heating tube 2 are sequentially arranged in a direction away from the extrusion direction of the gutta-percha, so the first heating tube 1 is used to connect the needle assembly, and the second heating tube 2 is used to connect the parts that do not need to be heated at the rear end, such as: the extrusion mechanism for extruding the gutta-percha, compared with the prior art using a heating tube with an integrated structure, and the thermal conductivity of the entire heating tube is consistent, the present application uses a split heating tube, that is, the first heating tube 1 and the second heating tube 2 are arranged, and the thermal conductivity of the second heating tube 2 is less than the thermal conductivity of the first heating tube 1, so that during use, heat is prevented from being transferred to the parts that do not need to be heated at the rear end, energy waste is prevented, and the heating efficiency of the heating tube structure for the gutta-percha is improved, and at the same time, the parts that do not need to be heated at the rear end can be prevented from being damaged.

[0029] Furthermore, the first heating tube 1 is made of copper material. Copper has a high thermal conductivity, which facilitates the first heating tube 1 to transfer the heat of the heating device to the gutta-percha located in the first heating tube 1, so that the gutta-percha melts and improves the heat transfer efficiency.

[0030] Furthermore, the second heating tube 2 is made of titanium, stainless steel, polyetheretherketone or polytetrafluoroethylene. Compared with the high thermal conductivity of copper, the thermal conductivity of titanium, stainless steel, polyetheretherketone (PEEK) or polytetrafluoroethylene (PTFE) is much lower than that of copper, which effectively prevents heat from being transferred to the parts that do not need to be heated at the rear end during use, thereby preventing energy waste, improving the heating efficiency of the heating tube structure for the gutta-percha, and preventing damage to the parts that do not need to be heated at the rear end. In addition, titanium, stainless steel, polyetheretherketone or polytetrafluoroethylene has high heat resistance. Although the second heating tube 2 is connected to the first heating tube 1 and is used when the first heating tube 1 is in a high temperature state, the second heating tube 2 can still have good stability and will not melt, burn or degrade.

[0031] Furthermore, the first heating tube 1 is provided with a heating chamber 11, and the second heating tube 2 is provided with a main body 21 and a plug-in portion 22 for being inserted into the heating chamber 11. ， The plug-in portion 22 and the main body 21 are sequentially arranged on the second heating tube 2 in a direction away from the gutta-percha extrusion direction. The first heating tube 1 and the second heating tube 2 are fixed together by plug-in matching, with a stable structure and quick assembly, without the need for fixing by other fasteners.

[0032] Furthermore, the first heating tube 1 and the second heating tube 2 are plugged together to form a gutta-percha channel for placing a gutta-percha stick. The inner diameters of the gutta-percha channel are set to be of equal width to facilitate squeezing out the gutta-percha.

[0033] Furthermore, the heating chamber 11 and the connecting chamber 12 are integrally formed, and the main body 21 and the plug-in portion 22 are also integrally formed, which is convenient for processing.

[0034] Furthermore, a connecting cavity 12 is also provided in the first heating tube 1. The heating cavity 11 and the connecting cavity 12 are sequentially arranged in the first heating tube 1 in the direction away from the gutta-percha extrusion direction. The aperture of the connecting cavity 12 is larger than the aperture of the heating cavity 11, so that a first step 13 is formed between the heating cavity 11 and the connecting cavity 12. The outer diameter of the main body 21 is larger than the outer diameter of the plug-in portion 22, so that a second step 23 is formed between the main body 21 and the plug-in portion 22 to abut against the first step 13. The limiting effect of the first step 13 and the second step 23 can prevent the second heating tube 2 from moving during the movement of the extrusion mechanism for extruding the gutta-percha when in use, causing the second heating tube 2 to fall off from the first heating tube 1, and other accidents.

[0035] Furthermore, the first heating tube 1 and the second heating tube 2 are fixed together by interference fit or welding, which has high connection strength and good sealing performance, and does not require additional connection parts, thus simplifying the assembly process.

[0036] Furthermore, the first heating tube 1 and the second heating tube 2 are fixed together by the interference fit between the plug-in portion 22 and the heating cavity 11 or the interference fit between the main body 21 and the connecting cavity 12. The interference fit is achieved by forcibly pressing the first heating tube 1 into the second heating tube 2, which has high connection strength and is not easy to loosen. At the same time, the sealing performance is good, and no additional connection parts are required.

[0037] Furthermore, a plurality of solder receiving grooves 24 are provided on the outer peripheral wall of the main body 21 located in the connecting cavity 12, and the first heating tube 1 and the second heating tube 2 are fixed together by welding the main body 21 and the inner wall of the connecting cavity 12. Welding provides a permanent connection method, and the solder receiving grooves 24 increase the amount of solder, increase the contact area between the solder and the second heating tube 2, and provide an anchor point for the solder, thereby improving the adhesion and fixation of the solder, which helps to ensure the durability and reliability of welding. After welding, the connection is very firm and can withstand a high load, and a good sealing effect can be achieved.

[0038] Furthermore, the connection cavity 12 is provided with a notch 14 for fixing a temperature sampling line. The temperature sampling line is used to connect with the temperature sensor, and the temperature sampling line has good insulation performance and anti-interference ability to ensure accurate transmission of temperature data and improve the accuracy of temperature detection of the first heating tube 1 and the second heating tube 2.

[0039] See also Figure 6 Based on the above-mentioned heating tube structure, the embodiment of the present application also provides a gutta-percha filling machine, including a needle assembly 3, an extrusion mechanism 4 and the heating tube structure, wherein the end of the first heating tube 1 away from the second heating tube 2 is connected to the needle assembly 3, and the extrusion mechanism 4 is arranged on the end of the second heating tube 2 away from the first heating tube 1. The first heating tube 1 and the second heating tube 2 are arranged in sequence in the direction away from the gutta-percha extrusion direction. Compared with the prior art that adopts a heating tube with an integrated structure and the thermal conductivity of the entire heating tube is consistent, the present application adopts a split heating tube, that is, the first heating tube 1 and the second heating tube 2 are arranged, and the thermal conductivity of the second heating tube 2 is less than the thermal conductivity of the first heating tube 1. Therefore, during use, heat is prevented from being conducted to the parts that do not need to be heated at the rear end, such as: the extrusion mechanism 4, to prevent energy waste, improve the heating efficiency of the heating tube structure for the gutta-percha, and at the same time, prevent the parts that do not need to be heated at the rear end from being damaged.

[0040] Furthermore, the first heating tube 1 and the second heating tube 2 are plugged together to form a gutta-percha channel for placing a gutta-percha stick. The inner diameter of the gutta-percha channel is set to have an equal width, and the connecting end of the first heating tube 1 and the needle assembly 3 is provided with a taper in the direction of the needle assembly 3 to facilitate connection with the needle assembly 3.

[0041] During use, a gutta-percha stick is placed in the gutta-percha channel of the heating tube structure, and then the heating device heats the first heating tube 1 to increase the temperature, and the gutta-percha in the heating tube structure softens accordingly. The extrusion mechanism 4 squeezes the softened gutta-percha into the heating tube structure, so that the softened gutta-percha can be squeezed out of the needle assembly 3 and filled into the patient's root canal, thereby achieving root canal filling.

[0042] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A heating tube structure, characterized in that: The heating tube structure comprises a first heating tube (1) and a second heating tube (2) which are separately arranged, the first heating tube (1) and the second heating tube (2) being arranged in sequence in a direction away from the gutta-percha extrusion direction, and the thermal conductivity of the second heating tube (2) being smaller than the thermal conductivity of the first heating tube (1); The first heating tube (1) is provided with a heating chamber (11), and the second heating tube (2) is provided with a main body (21) and an inserting portion (22) for inserting into the heating chamber (11). ， The plug-in portion (22) and the main body portion (21) are arranged on the second heating tube (2) in sequence in a direction away from the gutta-percha extrusion direction; The first heating tube (1) and the second heating tube (2) are plugged together to form a gutta-percha channel for placing a gutta-percha stick, and the inner diameters of the gutta-percha channels are arranged to have equal widths.

2. The heating tube structure according to claim 1, characterized in that: A connecting cavity (12) is also provided in the first heating tube (1); the heating cavity (11) and the connecting cavity (12) are arranged in sequence in the first heating tube (1) in a direction away from the extrusion direction of the gutta-percha; the aperture of the connecting cavity (12) is larger than the aperture of the heating cavity (11), so that a first step (13) is formed between the heating cavity (11) and the connecting cavity (12); the outer diameter of the main body (21) is larger than the outer diameter of the plug-in portion (22), so that a second step (23) is formed between the main body (21) and the plug-in portion (22) and abuts against the first step (13).

3. The heating tube structure according to claim 2, characterized in that: The heating chamber (11) and the connecting chamber (12) are integrally formed, and the main body (21) and the plug-in portion (22) are integrally formed.

4. The heating tube structure according to claim 2, characterized in that: The first heating tube (1) and the second heating tube (2) are fixed together by means of interference fit or welding.

5. The heating tube structure according to claim 4, characterized in that: The first heating tube (1) and the second heating tube (2) are fixed together by an interference fit between the plug-in portion (22) and the heating chamber (11) or an interference fit between the main body (21) and the connecting chamber (12).

6. The heating tube structure according to claim 4, characterized in that: A plurality of solder receiving grooves (24) are provided on the outer peripheral wall of the main body (21) located in the connecting cavity (12), and the first heating tube (1) and the second heating tube (2) are fixed together by welding the main body (21) and the inner wall of the connecting cavity (12).

7. The heating tube structure according to any one of claims 2 to 6, characterized in that: The connecting cavity (12) is also provided with a notch (14) for fixing the temperature sampling line.

8. A gutta-percha filling machine, characterized in that: It comprises a needle assembly (3), an extrusion mechanism (4) and a heating tube structure as described in any one of claims 1 to 7, wherein one end of the first heating tube (1) away from the second heating tube (2) is connected to the needle assembly (3), and the extrusion mechanism (4) is arranged on one end of the second heating tube (2) away from the first heating tube (1).

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