Root canal therapeutic apparatus

Abstract

A root canal therapeutic apparatus disclosed by the present invention comprises a bent handpiece and a handheld host, the bent handpiece comprises a first shell, a handpiece, a root canal file and a driving mechanism, one end of the first shell is connected with the handpiece, the root canal file rotates in the handpiece, one end of the root canal file extends out of the handpiece, and the driving mechanism is arranged in the first shell close to the handpiece. The driving mechanism drives the root canal file to rotate in the machine head, the other end of the first shell is connected with a rotating sleeve and a sealing ring plate, the section of the rotating sleeve is smaller than that of the first shell at the joint, and the sealing ring plate is arranged on the outer side of the rotating sleeve; the handheld host comprises a second shell, a rotating motor is arranged in the second shell, the output end of the rotating motor is connected with a gear, an annular groove matched with the sealing ring plate is formed in the side wall of the second shell, the rotating sleeve is arranged in one end of the second shell, and the sealing ring plate is inserted into the annular groove. Adjustment of various angles during operation of a doctor is facilitated, and the first shell and the second shell can be connected and fastened when not adjusted through the arranged limiting bolts.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a root canal therapy instrument. Background Art

[0002] Root canal therapy is currently an ideal and proven treatment for various conditions such as pulpitis and pulp necrosis. The main process involves using a root canal therapy instrument to thoroughly clean the inside and walls of the diseased root canal, remove diseased tissue, and create a complete, smooth root canal lumen. The prepared root canal is then filled with other materials, such as gutta-percha points, to achieve the purpose of root canal repair and treatment. The root canal therapy instrument, also known as a root canal motor, is a precision electronic device used to reduce the doctor's workload by replacing manual root canal enlargement and creating a more standardized root canal. It significantly reduces the doctor's workload, saves time, and improves efficiency, and is widely used in clinical practice.

[0003] An endodontic device typically consists of a handheld unit and a matching contra-angle handpiece. The contra-angle handpiece is equipped with a root canal file. Because the tooth to be treated can be located in the upper or lower jaw, or at the front or back end, the contra-angle handpiece needs to be adjusted to different angles to facilitate the doctor's root canal treatment. In existing endodontic devices, the contra-angle handpiece is detachably connected to the handheld unit. When the doctor needs to adjust the angle of the contra-angle handpiece, the contra-angle handpiece must be constantly plugged in and out, which is cumbersome. Furthermore, the connection between the bending mechanism and the handheld unit can become loose and shaky, rendering the contra-angle handpiece unstable and seriously affecting the doctor's operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a root canal therapy instrument to solve the problems existing in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a root canal therapy instrument, comprising a curved handpiece and a handheld host, the curved handpiece comprising a first shell, a handpiece, a root canal file and a driving mechanism, one end of the first shell is connected to the handpiece, the root canal file rotates in the handpiece and one end extends out of the handpiece, a driving mechanism is arranged near the handpiece in the first shell, the driving mechanism drives the root canal file to rotate in the handpiece, the other end of the first shell is connected to a rotating sleeve and a sealing ring plate, the cross-section of the rotating sleeve is smaller than the cross-section of the first shell at the connection, and the sealing ring plate is arranged on the outside of the rotating sleeve; the handheld host comprises a second shell, a rotating motor is arranged in the second shell, a gear is connected to the output end of the rotating motor, an annular groove adapted to the sealing ring plate is arranged on the side wall of the second shell, the rotating sleeve is arranged inside one end of the second shell, the sealing ring plate is inserted into the annular groove, a rotating bearing is arranged between the rotating sleeve and the inner wall of the second shell, and the rotating sleeve is provided with a gear ring meshing with the gear.

[0006] As a preferred embodiment of the present technical solution, the driving mechanism includes a driving motor, a driving gear and a driven gear. A root canal file, a root canal file sleeve and a bearing are arranged in the handpiece. The root canal file is detachably connected to the root canal file sleeve. The root canal file sleeve rotates on the handpiece through the bearing. A driven gear is arranged on the root canal file sleeve. The output end of the driving motor is connected to the driving gear, and the driving gear and the driven gear are meshed.

[0007] As a preferred embodiment of the present technical solution, the rotating sleeve and the sealing ring plate are detachably connected to the first shell.

[0008] As a preferred embodiment of the present technical solution, a limiting screw hole is provided on the second shell, the limiting screw hole passes through to the annular groove, and a limiting bolt is provided in the limiting screw hole.

[0009] As a preferred embodiment of the present technical solution, the gear ring is arranged on the inner wall of the rotating sleeve.

[0010] As a preferred embodiment of the present technical solution, a start button for rotating the motor and driving the motor is provided on the second shell.

[0011] Compared with the prior art, the first shell and the second shell of the present invention are rotatably connected through a rotating bearing. The rotating motor drives the rotating sleeve of the second shell to rotate through the gear, and then drives the rotation of the contralateral head, which is convenient for the doctor to adjust various angles during operation. The limiting bolts can make the first shell and the second shell connected and tightened when not adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 This is a detailed diagram of the connection between the first shell and the second shell of the present invention.

[0014] Figure 3 It is a schematic exploded view of the first shell and the second shell of the present invention.

[0015] In the figure: 1. First housing; 2. Handpiece; 3. Root canal file; 4. Rotating sleeve; 4.1. Ring gear; 5. Sealing ring plate; 6. Second housing; 6.1. Annular groove; 7. Rotating motor; 8. Gear; 9. Rotating bearing; 10. Driving motor; 11. Driving gear; 12. Bearing; 13. Driven gear; 14. Root canal file sleeve; 15. Limit bolt. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3 The present invention provides an endodontic treatment instrument, comprising an angled handpiece and a handheld host, the angled handpiece comprising a first shell 1, a handpiece 2, a root canal file 3 and a driving mechanism, one end of the first shell 1 is connected to the handpiece 2, the root canal file 3 rotates in the handpiece 2 and one end extends out of the handpiece 2, a driving mechanism is provided near the handpiece 2 in the first shell 1, the driving mechanism drives the root canal file 3 to rotate in the handpiece 2, that is, the handpiece 2 is provided with a root canal file 3, a root canal file sleeve 14 and a bearing 12, the root canal file 3 is detachably connected to the root canal file sleeve 14, the root canal file sleeve 14 rotates on the handpiece 2 through the bearing 12, and the other end of the first shell 1 is connected A rotating sleeve 4 and a sealing ring plate 5 are connected. The cross-section of the rotating sleeve 4 is smaller than the cross-section of the first shell 1 at the connection point. The sealing ring plate 5 is arranged on the outside of the rotating sleeve 4; the handheld host includes a second shell 6, a rotating motor 7 is arranged in the second shell 6, and a gear 8 is connected to the output end of the rotating motor 7. An annular groove 6.1 adapted to the sealing ring plate is provided on the side wall of the second shell 6. The rotating sleeve 4 is arranged inside one end of the second shell 6, and the sealing ring plate 5 is inserted into the annular groove 6.1. A rotating bearing 9 is provided between the rotating sleeve 4 and the inner wall of the second shell 6, and a gear ring 4.1 meshing with the gear 8 is provided on the rotating sleeve 4.

[0018] In a specific embodiment of the present invention, the drive mechanism includes a drive motor 10, a driving gear 11, and a driven gear 13. The output end of the drive motor 10 is connected to the driving gear 11, and the driving gear 11 and the driven gear 13 are meshed. The driven gear 13 is disposed on the root canal file sleeve 14. The rotating sleeve 4 and the sealing ring plate 5 are detachably connected to the first housing 1. This can be achieved by providing an internal thread on the inner wall of the first housing 1 and a corresponding external thread on the outer wall of the rotating sleeve 4, with the two being threadedly connected. Alternatively, an annular groove can be provided in the first housing 1 and an annular protrusion can be provided on the outer wall of the rotating sleeve 4, with the two being cooperatively connected. The sealing ring plate is disposed on the side wall of the first housing 1 and can be integrally formed, or an annular groove can be provided on the side wall of the first housing 1, with the two being connected by an interference fit.

[0019] In a specific implementation of the present invention, the second housing 6 is provided with a retaining screw hole extending through an annular groove 6.1 on the side wall. A retaining bolt 15 is installed within the retaining screw hole. The sealing ring plate 5 can be made of a relatively soft material. The retaining bolt 15 presses the sealing ring plate 5 into the annular groove 6.1, thereby securing the first housing 1 and the second housing 6. The gear ring 4.1 of the rotating sleeve 4 is located on the inner wall of the rotating sleeve 4. The second housing 6 is provided with a start button for the rotating motor 7 and the drive motor 10.

[0020] When the present invention is working, the staff holds the handheld host and starts the driving motor. The driving motor drives the active gear to rotate, and then the driven gear rotates to drive the root canal file sleeve and the root canal file to rotate. When the angle of the bending handpiece needs to be adjusted, the limit bolt is loosened and the rotating motor is started. The rotating motor drives the gear to rotate, and then drives the gear ring and the rotating sleeve to rotate. The rotating sleeve drives the first shell and the handpiece to rotate. After completion, the limit bolt is tightened. The limit bolt presses the sealing ring plate into the annular groove, so that the first shell and the second shell are connected and tightened.

[0021] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An endodontic treatment instrument, comprising a contra-angle handpiece and a handheld main unit, characterized in that: The curved handpiece includes a first shell, a handpiece, a root canal file and a driving mechanism. One end of the first shell is connected to the handpiece, the root canal file rotates in the handpiece and one end extends out of the handpiece. A driving mechanism is arranged near the handpiece in the first shell, and the driving mechanism drives the root canal file to rotate in the handpiece. The other end of the first shell is connected to a rotating sleeve and a sealing ring plate. The cross-section of the rotating sleeve is smaller than the cross-section of the first shell at the connection, and the sealing ring plate is arranged on the outside of the rotating sleeve; the handheld host includes a second shell, a rotating motor is arranged in the second shell, and a gear is connected to the output end of the rotating motor. An annular groove that is compatible with the sealing ring plate is arranged on the side wall of the second shell, and the rotating sleeve is arranged inside one end of the second shell. The sealing ring plate is inserted into the annular groove. A rotating bearing is provided between the rotating sleeve and the inner wall of the second shell, and the rotating sleeve is provided with a gear ring that meshes with the gear.

2. The root canal therapy device according to claim 1, characterized in that: The driving mechanism includes a driving motor, a driving gear and a driven gear. A root canal file, a root canal file sleeve and a bearing are arranged in the handpiece. The root canal file is detachably connected to the root canal file sleeve. The root canal file sleeve rotates on the handpiece through the bearing. A driven gear is arranged on the root canal file sleeve. The output end of the driving motor is connected to the driving gear, and the driving gear and the driven gear are meshed.

3. The root canal therapy device according to claim 2, characterized in that: The rotating sleeve and the sealing ring plate are detachably connected to the first shell.

4. The root canal therapy device according to claim 1, wherein: The second shell is provided with a limiting screw hole, which passes through the annular groove, and a limiting bolt is arranged in the limiting screw hole.

5. The root canal therapy device according to claim 1, characterized in that: The gear ring is arranged on the inner wall of the rotating sleeve.

6. The root canal therapy device according to claim 1, characterized in that: The second shell is provided with a start button for rotating the motor and driving the motor.

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