Visually identifiable root canal files

Abstract

This invention provides a visually identifiable root canal file, relating to the field of medical device technology. It includes a clamping part and a file. The clamping part is mounted on a handle held by a healthcare professional for oral cavity repair. The file is mounted on the clamping part. To facilitate observation of the file's functionality, a cutting section is provided along its length on the outer surface of the file. One side of the file has a cutting plane along its length, forming a planar observation area. When the file is in operation, under stress, microcracks are generated, creating visible line breaks on the planar observation area. Because the planar observation area has no curved surface reflections or visual obstructions, doctors can quickly detect this abnormality. This achieves a shift from "experience-based judgment" to "visual judgment," allowing healthcare professionals to identify the fracture state of the root canal file in real time with the naked eye, predict fracture risks in advance, and promptly terminate dangerous procedures, ensuring convenience and reliability in clinical use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a visually identifiable root canal file. Background Technology

[0002] Root canal treatment is the core treatment for pulpitis and periapical periodontitis. Root canal files are key instruments used in the root canal preparation process for exploring, clearing, cleaning and shaping root canals. Their safety directly affects the treatment effect and patient prognosis.

[0003] Currently, clinicians mainly rely on operational experience and feel to determine whether a root canal file has broken, which is an "experience-based judgment" model: during the operation, doctors indirectly judge whether there is a risk of breakage by sensing changes in the resistance of the instrument and abnormal rotational feel. Only if the resistance suddenly disappears or the operation feels abnormal will they suspect that the instrument has broken.

[0004] Existing technologies mainly fall into two categories of core improvement directions, neither of which addresses the technical pain points targeted by this invention: One category involves optimizing the overall structure of the root canal file to reduce the probability of breakage. For example, the core improvement of "A Medical Root Canal File" with application publication number CN209032679U is that the working part is designed as a spatial spiral structure, which increases the cutting diameter to improve structural stability and reduce the risk of breakage. However, this technical solution does not involve a visual recognition design for the breakage state, and in clinical use, it still relies on the doctor's operational experience to judge whether a breakage has occurred, failing to break through the limitation of "experience-based judgment." The other category involves optimizing cutting performance by changing the shape of the cross-section of the shaft. For example, the "New Titanium-Nickel Root Canal File" with application publication number CN2655829 sets the cross-section of the shaft as a polygon to improve cutting efficiency and attempt to achieve preliminary breakage warning. However, this polygonal cross-section lacks a clear observation surface design and does not have a matching visual marking layer that can be set up to indicate breakage simultaneously. It cannot achieve visual identification of the breakage state and still requires the aid of touch or additional detection equipment to assist in the judgment, failing to solve the core pain point of "experience-based judgment." Summary of the Invention

[0005] The purpose of this invention is to provide a visually identifiable root canal file to solve the technical problems of existing root canal files that rely on experience to judge fracture and cannot clearly observe fracture traces. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

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

[0007] The present invention provides a visually identifiable root canal file, comprising a clamping part and a file needle, the file needle being mounted on the clamping part, the outer surface of the file needle having a cutting part along the length direction, one side of the file needle having a cutting plane along the length direction forming a planar observation part, the planar observation part extending to both ends of the cutting part, the planar observation part being used for visually identifying cracks.

[0008] Preferably, the peripheral sidewall of the cutting part is provided with a spiral cutting edge, and the planar observation part passes through the cutting edge to isolate the cutting edge.

[0009] Preferably, the cutting part has a frustum structure, and the large-diameter end of the cutting part is used to connect to the clamping part.

[0010] Preferably, one end of the file needle has a smooth portion, and the smooth portion is fixedly connected to the clamping portion.

[0011] Preferably, the smooth portion is provided with a first coating.

[0012] Preferably, a positioning ring is fixed in the middle of the smooth part.

[0013] Preferably, a first annular groove is provided on the circumferential surface of the clamping part at the end away from the file needle.

[0014] Preferably, a second annular groove is provided on the circumferential surface of the clamping part near one end of the file needle, and the second annular groove indicates the file needle model.

[0015] Preferably, the end face of the clamping portion away from the file needle is configured as an arc surface.

[0016] The technical solution provided in this application document has the following beneficial effects: This invention provides a visually identifiable root canal file, comprising a clamping part and a file. The clamping part is mounted on a handle held by a healthcare professional for oral cavity repair. The file is mounted on the clamping part. To facilitate observation of whether the file is in a usable state, the cutting part of the file is provided with a planar observation part extending along the length of the cutting part to its end. When the file is in operation, under stress, microcracks are generated, forming visible line breaks on the planar observation part. Because the planar observation part has no curved surface reflection or visual obstruction, the doctor can quickly detect the abnormality. This achieves a shift from "experience-based judgment" to "visual judgment," allowing healthcare professionals to identify the fracture state of the root canal file in real time with the naked eye, predict the risk of fracture in advance, and terminate dangerous operations in time, ensuring the convenience and reliability of clinical use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a visually identifiable root canal file provided in Embodiment 1 of the present invention; Figure 2 This is a side view of a root canal file according to an exemplary embodiment; Figure 3 This is a side view of a file according to an exemplary embodiment.

[0019] In the figure: 1. Clamping part; 11. First annular groove; 12. Second annular groove; 2. File needle; 21. Planar observation part; 22. Cutting part; 3. Smoothing part; 4. Positioning ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] This specific embodiment provides a visually identifiable root canal file to solve the technical problem in the prior art where root canal files rely on experience to judge fracture and cannot clearly observe fracture traces.

[0022] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations represented in the embodiments below are not limited to those necessary for the solution of the invention described in the claims.

[0023] Reference Figures 1-3This invention provides a visually identifiable root canal file, comprising a clamping part 1 and a file 2. The clamping part 1 is mounted on a handle held by a healthcare professional for oral cavity repair. The file 2 is mounted on the clamping part 1. The outer surface of the file 2 has a cutting portion 22 along its length, and one side of the file 2 has a cutting plane along its length. Since the cutting plane is used for visually identifying cracks, it forms a planar observation portion 21 that extends to both ends of the cutting portion 22. For convenience... Observe whether the file 2 is in a normal working condition. When the file 2 is working, under the action of force, micro-cracks are generated, forming lines visible to the naked eye on the planar observation part 21. Since the planar observation part 21 has no curved surface reflection and no field of vision obstruction, the doctor can quickly capture the abnormality. This realizes the transformation from "experience-based judgment" to "visual judgment", which makes it convenient for medical staff to identify the fracture state of the root canal file in real time with the naked eye, predict the risk of cracking in advance, stop dangerous operations in time, and ensure the convenience and reliability of clinical use.

[0024] When medical staff install the file needle 2, they can first observe the flat observation part 21 of the file needle 2 to check for cracks, so as to determine whether the file needle 2 can continue to be used.

[0025] In a further optimized design, a spiral cutting edge is provided on the peripheral sidewall of the cutting part 22. The spiral cutting edge cuts the teeth, and a planar observation part 21 is provided for people to check for cracks. The planar observation part 21 passes through the cutting edge to separate the cutting edge.

[0026] Further optimization of the design: the file 2 is configured as a frustum structure, with the large-diameter end of the file 2 connected to the clamping part 1. To ensure the service life of the file 2, the width of the planar observation part 21 gradually decreases along the axial direction of the file 2, and the width of the planar observation part 21 is the largest at the end closest to the clamping part 1. Since the diameter of the file 2 changes with its length, the end of the file 2 furthest from the clamping part 1 is the smallest. To ensure the service life of the file 2, the width of the planar observation part 21 is the smallest at the tip of the cutting part 22, which can ensure the service life of the end of the file 2 and reduce the probability of breakage.

[0027] To further optimize the design, in order to facilitate the installation of the file needle 2 on the clamping part 1, a smooth part 3 is provided at the end of the file needle 2 that is connected to the clamping part. The smooth part 3 is fixedly connected to the clamping part 1. The smooth part 3 can be fixed in the mounting hole of the clamping part 1 by overpressure pressing technology, thereby realizing the connection between the smooth part 3 and the clamping part 1.

[0028] To further optimize the design and facilitate observation while preventing visual fatigue for medical staff, the smooth part 3 is equipped with a first coating. This allows the color of the smooth part 3 to be distinguished from that of the cutting part 22, making it easier for people to see and reducing visual fatigue. Specifically, during processing, the first coating is first sprayed onto the cylindrical workpiece. When processing the cutting part 22, the outer side of the cylindrical workpiece is removed to form the cutting part 22. The cutting part 22 is the color of the workpiece itself, and the smooth part 3 and the cutting part 22 then form different colors, making it easier for people to observe.

[0029] To further optimize the solution, in order to easily know the length of the mounting hole in the clamping part 1 where the smooth part 3 is installed, a positioning ring 4 is fixed on the smooth part 3. Specifically, the positioning ring 4 can be fixedly installed on the smooth part 3, or the smooth part 3 and the positioning ring 4 can be integrally formed. By checking the positional relationship between the positioning ring 4 and the clamping part 1, it can be determined whether the file needle 2 is installed in place, thus ensuring the stability of the file needle 2 installation.

[0030] To further optimize the design, in order to facilitate the installation of the clamping part 1 on the handle, a first annular groove 11 is provided on the circumferential surface of the end of the clamping part 1 away from the file needle 2. The first annular groove 11 is used for the claws on the handle to engage, so that the motor on the handle can drive the file needle 2 to rotate.

[0031] To further optimize the design and make it easier for people to identify the model of the file needle 2, a second annular groove 12 is provided on the circumferential surface of the clamping part 1 near the end of the file needle 2. The second annular groove 12 is sprayed with a second coating, which marks the model of the file needle. This way, it can be seen intuitively that different colors represent different models.

[0032] To further optimize the design, in order to facilitate the installation of the clamping part 1 on the handle, the end face of the clamping part 1 away from the file needle 2 is set as an arc surface. The arc surface makes it easier for the clamping part 1 to be placed into the mounting position of the handle, reducing the probability of the circumference of the clamping part colliding with the circumference of the mounting position.

[0033] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., used herein to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description herein, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0036] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the content not described in detail in some embodiments can be referred to the same or similar content in other embodiments. The multiple solutions provided in this application contain their own basic solutions, are independent of each other, and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects.

[0037] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A visually identifiable root canal file, characterized in that, It includes a clamping part (1) and a file (2). The file (2) is mounted on the clamping part (1). The outer surface of the file (2) is provided with a cutting part (22) along the length direction. One side of the file (2) is provided with a cutting plane to form a plane observation part (21) along the length direction. The plane observation part (21) extends to both ends of the cutting part. The plane observation part (21) is used for visual identification of cracks.

2. The visually identifiable root canal file according to claim 1, characterized in that, The cutting part (22) has a spiral cutting edge on its peripheral sidewall, and the planar observation part (21) passes through the cutting edge to separate the cutting edge.

3. The visually identifiable root canal file according to claim 1, characterized in that, The file (2) has a frustum structure, and the large-diameter end of the cutting part (22) is used to connect to the clamping part (1).

4. The visually identifiable root canal file according to claim 1, characterized in that, One end of the file (2) is provided with a smooth part (3), and the smooth part (3) is fixedly connected to the clamping part (1).

5. The visually identifiable root canal file according to claim 4, characterized in that, The smooth part (3) is provided with a first coating.

6. The visually identifiable root canal file according to claim 4, characterized in that, A positioning ring (4) is fixed in the middle of the smooth part.

7. The visually identifiable root canal file according to claim 1, characterized in that, A first annular groove (11) is provided on the circumferential surface of the clamping part (1) away from the file needle (2).

8. The visually identifiable root canal file according to claim 1, characterized in that, The clamping part (1) has a second annular groove (12) on the circumferential surface near one end of the file (2), and the second annular groove (12) indicates the model of the file (2).

9. The visually identifiable root canal file according to claim 1, characterized in that, The end face of the clamping part (1) away from the file needle (2) is set as an arc surface.

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