Gutta-percha taking file

Abstract

The utility model provides a gutta-percha taking file which comprises a handle part and a file body connected to one end of the handle part, the handle part is provided with a positioning structure, the file body comprises a main body section connected to the handle part and a gutta-percha taking section connected to one end, far away from the handle part, of the main body section, and at least two planes which are arranged at intervals at equal angles are arranged on the peripheral side of the gutta-percha taking section. When the gutta-percha taking file is used, the tail end of the file body is aligned with a gutta-percha filling opening of a tooth, then the gutta-percha taking file is driven to rotate, the peripheral side of the gutta-percha taking section is provided with at least two planes which are arranged at equal angles at intervals, and a cavity is formed between the planes and the tooth and can accommodate falling gutta-percha and enable the gutta-percha to move in the cavity; the gutta-percha can be extruded in the extending process of the gutta-percha taking file, and the fallen gutta-percha can be extruded out of a channel formed between the plane and the teeth more easily after being extruded and cannot be adhered to the gutta-percha taking file. Compared with conventional machinery, the gutta-percha taking file can take out gutta-percha efficiently and quickly.

Description

Technical Field

[0001] The utility model belongs to the technical field of dental medical instruments, in particular to a gutta-percha file. Background Art

[0002] After root canal treatment, the root canal is hollow, and gutta-percha needs to be filled into the root canal to seal the apex of the tooth. Gutta-percha is mainly made of rubber, and its main ingredients are gutta-percha, zinc oxide, etc. It has high plasticity and biocompatibility and will not cause damage to the body.

[0003] In the related art, if gutta-percha needs to be removed, mechanical instruments such as dental clamps, nickel-titanium drills, and root canal files are usually used. However, due to the softness and high viscoelasticity of gutta-percha, it is not easy to remove the gutta-percha entirely using conventional dental clamps, while instruments such as nickel-titanium drills and root canal files are prone to adhesion and are not easy to remove. It can be seen that conventional mechanical gutta-percha removal tools are difficult to efficiently remove gutta-percha. Utility Model Content

[0004] The technical purpose of the utility model is to provide a gutta-percha removal file, which can efficiently and quickly remove gutta-percha.

[0005] In order to solve the above technical problems, the utility model is implemented as follows: a gutta-percha file is provided, comprising a handle and a file body connected to one end of the handle, the handle having a positioning structure, the file body comprising a main body section connected to the handle and a gutta-percha section connected to one end of the main body section away from the handle, and at least two planes arranged at equal angles are provided on the circumference of the gutta-percha section.

[0006] Furthermore, the maximum outer diameter of the glue extraction section decreases from the main body section toward the end.

[0007] Furthermore, the end of the glue extracting section is in a cone shape or a polygonal pyramid shape.

[0008] Furthermore, three planes are provided on the circumference of the glue taking section.

[0009] Furthermore, the three planes have equal acute angles with the central axis of the glue extraction section, and the closer to the end, the smaller the distance between the plane and the central axis.

[0010] Furthermore, two adjacent planes intersect to form a scraping edge.

[0011] Furthermore, a transition surface is formed between two adjacent planes, the transition surface is a curved surface, a glue scraping edge is protruded from the transition surface, and the glue scraping edge extends along the length direction of the glue taking section.

[0012] Furthermore, the file body is made of nickel-titanium alloy.

[0013] Further, the handle comprises a handle fixedly connected to the end of the file body away from the glue taking section and a fixing ring interference fit with the end of the file body away from the glue taking section, a notch is provided on the outer side of the fixing ring, a filling block is embedded in the notch, an annular groove is provided on the handle near the fixing ring, a second annular groove extending circumferentially is provided on the handle away from the fixing ring, and an axially extending limiting groove is provided near the edge of the end of the handle away from the fixing ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the present solution, the handle of the gutta-percha file can be installed on the clamping mechanism of a hand-held preparation machine or a machine-used preparation machine, and then driven to rotate. When in use, first align the end of the file body with the gutta-percha filling opening of the tooth, and then drive the gutta-percha file to rotate. Since the periphery of the gutta-percha section is provided with at least two planes arranged at equal angles, a cavity is formed between the plane and the tooth to accommodate the fallen gutta-percha and allow it to move in the cavity. Since the gutta-percha itself is elastic, the gutta-percha file will be squeezed during the insertion of the gutta-percha file. After being squeezed, the fallen gutta-percha is more easily squeezed out from the channel formed between the plane and the tooth, and will not adhere to the gutta-percha file. Compared with conventional machines, the gutta-percha file of the present solution can remove the gutta-percha efficiently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the gutta-percha file in an embodiment of the utility model.

[0017] In the accompanying drawings, the reference numerals represent: 1, handle; 11, handle; 12, fixing ring; 13, annular groove; 14, second annular groove; 15, limiting groove; 2, file body; 21, main body section; 22, glue removal section. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In this embodiment, combined with Figure 1 A gutta-percha removing file is provided, comprising a handle 1 and a file body 2 connected to one end of the handle 1, wherein the handle 1 has a positioning structure, and the file body 2 comprises a main body section 21 connected to the handle 1 and a gutta-percha removing section 22 connected to one end of the main body section 21 away from the handle 1, and at least two planes arranged at equal angles are provided on the periphery of the gutta-percha removing section 22.

[0022] In this solution, the handle 1 of the gutta-percha file can be installed on the clamping mechanism of a hand-held preparation machine or a machine-used preparation machine, and then driven to rotate. When in use, first align the end of the file body 2 with the gutta-percha filling opening of the tooth, and then drive the gutta-percha file to rotate. Since the periphery of the gutta-percha section 22 is provided with at least two planes arranged at equal angles, a cavity is formed between the plane and the tooth to accommodate the fallen gutta-percha and allow it to move in the cavity. Since the gutta-percha itself has elasticity, the gutta-percha will be squeezed during the insertion of the gutta-percha file. After being squeezed, the fallen gutta-percha is more easily squeezed out from the channel formed between the plane and the tooth, and will not adhere to the gutta-percha file. Compared with conventional machines, the gutta-percha file of this solution can efficiently and quickly remove the gutta-percha.

[0023] Further, the maximum outer diameter of the glue-taking segment 22 decreases from the main body segment 21 to the end. Specifically, the maximum outer diameter of the glue-taking segment 22 decreases from the main body segment 21 to the end to the same extent, that is, the maximum edge of the glue-taking segment 22 is a straight line, and the whole is similar to a cone. In this way, the end of the glue-taking segment 22 is small and the tail end is large, which facilitates the glue-taking segment 22 to extend into the gutta-percha filling, thereby facilitating the removal of the gutta-percha. In some embodiments, the maximum outer diameter of the glue-taking segment 22 decreases from the main body segment 21 to the end to the same extent and can be gradually increased or decreased. In this way, the maximum edge of the glue-taking segment 22 is a protruding or concave curve, which can be adaptively set according to actual conditions.

[0024] Furthermore, the end of the glue section 22 is conical or multi-faceted, which is equivalent to the end of the glue section 22 being a pointed tip. For a soft elastic material such as gutta-percha, the pointed tip shape can make it easier for the end of the glue section 22 to be inserted into the gutta-percha, thereby extending into the tooth root.

[0025] Further, in this embodiment, three planes are provided on the circumference of the gum removal section 22. The three planes can make the space between the planes and the teeth larger, so that the fallen gutta-percha can be squeezed out more easily. In addition, such a structure is more convenient for the automated processing of the gutta-percha file. It should be understood that in some embodiments, two, four, five, six, etc. planes can be provided on the circumference of the gum removal section 22, which can be adaptively set according to actual conditions.

[0026] Furthermore, the three planes have equal acute angles with the central axis of the rubber section 22, and the closer to the end, the smaller the distance between the plane and the central axis. In this way, the force in all directions of the gutta-percha file is balanced, and the chip removal space is the same. The tip of the end is easier to drill and the chip removal is smoother. When the end of the rubber section 22 is a cone, the connection between the plane and its end is an arc shape. When the end of the rubber section 22 is a pyramid, the plane and the bottom edge of the pyramid at the end are connected. In this way, the end of the rubber section 22 is used for drilling, and the edges of the three planes are used for cutting.

[0027] Furthermore, the two adjacent planes intersect to form a scraping edge, and at this time, the cross section of the plane of the glue-taking section 22 is an equilateral triangle, which is convenient for cutting and scraping the gutta-percha. In some embodiments, a transition surface can be formed between the two adjacent planes, and the transition surface is an arc surface, and a scraping edge is protruded on the transition surface. The scraping edge extends along the length direction of the glue-taking section 22, and the transition surface can prevent the gutta-percha from sticking. The scraping edge can be used to cut and scrape the gutta-percha, and the scraping edge can be arranged in multiple sections at intervals in the length direction, so that the gutta-percha can pass through the interval to prevent excessive resistance.

[0028] Furthermore, the file body 2 is made of nickel-titanium alloy. Specifically, the file body 2 can be made of imported CM Wire nickel-titanium alloy, which has good toughness and cutting ability and is not easy to be damaged.

[0029] The handle 1 includes a handle 11 fixedly connected to the end of the file body 2 away from the glue removal section and a fixing ring 12 interference-fitted with the end of the file body 2 away from the glue removal section. A notch is provided on the outer side of the fixing ring 12, and a filling block is embedded in the notch. An annular groove 13 is provided near the fixing ring 12 of the handle 11, and a second annular groove 14 extending circumferentially is provided at the part of the handle 11 away from the fixing ring 12. An axially extending limiting groove 15 is provided near the edge of the end of the handle 11 away from the fixing ring 12. The gutta-percha file can be detachably assembled on the head of the root canal preparation machine through the handle 1, and the handle 1 and the file body 2 are tightly combined, which can improve the reliability of the root canal file and ensure the smooth use of the automatic root canal preparation machine. It should be understood that the gutta-percha file can also be used as a manual root canal file in conjunction with a manual root canal preparation machine.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gutta-percha file, characterized in that: The invention comprises a handle and a file body connected to one end of the handle, wherein the handle has a positioning structure, and the file body comprises a main body section connected to the handle and a glue taking section connected to one end of the main body section away from the handle, wherein at least two planes arranged at equal angles are arranged on the periphery of the glue taking section; the maximum outer diameter of the glue taking section decreases from the main body section toward the end; three planes are arranged on the periphery of the glue taking section; the three planes have equal acute angles with the central axis of the glue taking section, and the closer to the end, the smaller the distance between the plane and the central axis.

2. The gutta-percha file according to claim 1, characterized in that: The end of the glue taking section is in a cone shape or a polygonal pyramid shape.

3. The gutta-percha file according to claim 1, characterized in that: Two adjacent planes intersect to form a scraping edge.

4. The gutta-percha file according to claim 3, characterized in that: A transition surface is formed between two adjacent planes, and the transition surface is a curved surface. A glue scraping edge is protruded from the transition surface, and the glue scraping edge extends along the length direction of the glue taking section.

5. The gutta-percha file according to any one of claims 1 to 4, characterized in that: The file body is made of nickel-titanium alloy.

6. The gutta-percha file according to any one of claims 1 to 4, characterized in that: The handle comprises a handle fixedly connected to the end of the file body away from the glue taking section and a fixing ring interference fit with the end of the file body away from the glue taking section, a notch is arranged on the outer side of the fixing ring, a filling block is embedded in the notch, an annular groove is arranged on the handle near the fixing ring, a second annular groove extending circumferentially is arranged on the handle away from the fixing ring, and an axially extending limiting groove is arranged near the edge of the end of the handle away from the fixing ring.

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