Microscopic root canal trephine capable of controlling cutting depth

Abstract

The utility model relates to the technical field of microscopic root canal trephine, in particular to a microscopic root canal trephine capable of controlling cutting depth, which comprises a mounting plate, a second connecting pipe fixedly connected to the bottom of the mounting plate, a trephine rod arranged at the bottom of the second connecting pipe, and a measuring cylinder fixedly connected to the outer surface of the trephine rod. The outer surface of the measuring cylinder is provided with a measured value, the top of the annular drill rod extends into the second connecting pipe, the annular drill rod is fixedly connected with an annular drill tool bit, the side face of the annular drill rod is provided with a mounting groove, and the interior of the mounting groove is fixedly connected with a displacement sensor. When the trephine rod and the trephine tool bit work, a worker knows the cutting depth of the tool bit through the measured value of the surface of the measuring cylinder, meanwhile, the displacement sensor is arranged in the mounting groove, the position of the trephine tool bit can be known through the displacement sensor, and therefore the worker can control the cutting depth conveniently, and convenience and working efficiency during work are improved.

Description

Technical Field

[0001] This utility model relates to the field of microscopic root canal trephine technology, specifically a microscopic root canal trephine with controllable cutting depth. Background Technology

[0002] With the improvement of living standards, people's dental and oral health problems have increased dramatically. Among these problems, root canal treatment is the basic method and best choice for pulpitis and periapical periodontitis. The principle of root canal treatment is to enlarge the root canal with cutting instruments, disinfect and irrigate it, and then fill the root canal with special materials or install a crown to prevent periapical lesions or promote the healing of existing periapical lesions. The staff needs to use a root canal trephine during the treatment.

[0003] CN215349591U A dental drill for pulp tissue retrieval, comprising a connecting tube and a drill bit, wherein the top and bottom of the connecting tube are provided with the drill bit and a connecting ring, and a suction tube is provided inside the connecting tube, extending from the end of the connecting tube to the end of the drill bit. The suction tube is fixed by a retaining plate inside the connecting tube and the drill bit, preventing it from bending during operation. The drill bit can be detached from the end of the connecting tube to remove the suction tube, making it convenient and practical.

[0004] However, this trephine still has some shortcomings in its use. It is impossible to know the cutting depth of the trephine during use, which affects the judgment of medical staff and reduces work efficiency. At the same time, it is not convenient to change trephines of different sizes during use. The drill bit can be disassembled from the end of the connecting tube, which reduces its practicality and stability. Utility Model Content

[0005] The purpose of this invention is to provide a microscopic root canal trephine with controllable cutting depth, in order to solve the problems mentioned in the background art, such as the inability to know the cutting depth of the trephine during use, which affects the judgment of medical staff and reduces work efficiency. At the same time, it is inconvenient to change trephines of different sizes during use, and the drill bit can be disassembled from the end of the connecting tube, which reduces practicality and stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A microscopic root canal trephine with controllable cutting depth includes a mounting plate, a second connecting tube fixedly connected to the bottom of the mounting plate, a trephine rod disposed at the bottom of the second connecting tube, a measuring cylinder fixedly connected to the outer surface of the trephine rod, the measuring cylinder having a measuring value on its outer surface, the top of the trephine rod extending into the second connecting tube, a trephine cutter head fixedly connected to the trephine rod, and a mounting groove formed on the side of the trephine rod, a displacement sensor fixedly connected within the mounting groove.

[0008] As a preferred embodiment of this utility model, a first connecting pipe is fixedly connected to the top of the mounting plate, a fixing groove is provided on the top of the mounting plate, a connecting plate is provided on the top of the mounting plate, the connecting plate is threadedly connected to the first connecting pipe, and the bottom of the connecting plate extends into the fixing groove.

[0009] As a preferred embodiment of this utility model, a protective shell is provided on the outer surface of the piercing rod, and the protective shell is threadedly connected to the second connecting pipe.

[0010] As a preferred embodiment of this utility model, the mounting plate is provided with a fixing bolt on its side. The fixing bolt passes through the mounting plate and extends into the trephine head. The fixing bolt is threadedly connected to the mounting plate.

[0011] As a preferred embodiment of this utility model, a connecting rod is fixedly connected to the top of the connecting plate, and a sealing ring is fixedly connected at the connection between the connecting rod and the connecting plate. The sealing ring is made of rubber.

[0012] As a preferred embodiment of this utility model, a protective plate is snapped into the opening of the mounting groove, and the protective plate is located on the side of the displacement sensor.

[0013] As a preferred embodiment of this utility model, the first connecting pipe and the second connecting pipe are positioned opposite each other, and both the first connecting pipe and the second connecting pipe are made of stainless steel.

[0014] As a preferred embodiment of this utility model, both the trephine rod and the trephine cutter head are made of alloy steel, and the connecting rod is located at the top center of the connecting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, by setting up an installation plate, a second connecting pipe, a measuring cylinder, and a displacement sensor, the operator can understand the cutting depth of the trephine rod and trephine head by measuring the value on the surface of the measuring cylinder during operation. At the same time, a displacement sensor is set in the installation groove, which can be used to understand the movement position of the trephine head, thereby facilitating the operator to control the cutting depth. The simultaneous use of the measuring cylinder and the displacement sensor improves the convenience and efficiency of the operation.

[0017] 2. In this utility model, by setting up a protective shell, a connecting plate, a first connecting pipe and a connecting rod for cooperative use, the protective shell is threadedly connected to the second connecting pipe. At the same time, the protective shell is located on the outer surface of the treble drill rod, which improves the stability of the treble drill rod and the treble drill bit during operation. The connecting rod is threadedly connected to the first connecting pipe through the connecting plate. The bottom of the connecting plate extends into the fixing groove, which facilitates the stability between the connecting plate and the mounting plate, and also facilitates disassembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the top structure of the mounting plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the mounting plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer surface structure of the pierced drill rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the mounting slot of this utility model.

[0023] In the diagram: 1. Mounting plate; 2. Connecting plate; 3. Connecting rod; 4. Sealing ring; 5. Fixing bolt; 6. Protective shell; 7. Pipe drill rod; 8. Measuring cylinder; 9. Pipe drill bit; 10. First connecting pipe; 11. Fixing groove; 12. Second connecting pipe; 13. Measured value; 14. Mounting groove; 15. Displacement sensor; 16. Protective plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] For examples, please refer to Figures 1-5 This utility model provides a technical solution:

[0026] A microscopic root canal trephine with controllable cutting depth includes a mounting plate 1. A second connecting tube 12 is fixedly connected to the bottom of the mounting plate 1. A trephine rod 7 is provided at the bottom of the second connecting tube 12. A measuring cylinder 8 is fixedly connected to the outer surface of the trephine rod 7. The measuring cylinder 8 has a measuring value 13 on its outer surface. The top of the trephine rod 7 extends into the second connecting tube 12. A trephine cutter head 9 is fixedly connected to the trephine rod 7. A mounting groove 14 is provided on the side of the trephine rod 7. A displacement sensor 15 is fixedly connected in the mounting groove 14. A protective plate 16 is snapped into the opening of the mounting groove 14. The protective plate 16 is located on the side of the displacement sensor 15.

[0027] According to this embodiment Figure 1 , Figure 3 , Figure 2 , Figure 4 and Figure 5 As shown, a first connecting pipe 10 is fixedly connected to the top of the mounting plate 1. A fixing groove 11 is opened on the top of the mounting plate 1. A connecting plate 2 is provided on the top of the mounting plate 1. The connecting plate 2 is threadedly connected to the first connecting pipe 10. The bottom of the connecting plate 2 extends into the fixing groove 11. A protective shell 6 is provided on the outer surface of the treble drill rod 7. The protective shell 6 is threadedly connected to the second connecting pipe 12. A fixing bolt 5 is provided on the side of the mounting plate 1. The fixing bolt 5 passes through the mounting plate 1 and extends into the treble drill bit 9. The fixing bolt 5 is threadedly connected to the mounting plate 1. A connecting rod 3 is fixedly connected to the top of the connecting plate 2. A sealing ring 4 is fixedly connected at the connection between the connecting rod 3 and the connecting plate 2. The sealing ring 4 is made of rubber. The first connecting pipe 10 and the second connecting pipe 12 are positioned opposite each other. The first connecting pipe 10 and the second connecting pipe 12 are both made of stainless steel. The treble drill rod 7 and the treble drill bit 9 are both made of alloy steel. The connecting rod 3 is located at the center of the top of the connecting plate 2.

[0028] The simultaneous use of the measuring cylinder 8 and the displacement sensor 15 improves the convenience and efficiency of the work. The protective shell 6 is threadedly connected to the second connecting pipe 12, and the protective shell 6 is located on the outer surface of the treble rod 7, which improves the stability of the treble rod 7 and the treble drill head 9 during operation.

[0029] The workflow of this utility model is as follows: When using the microscopic root canal trephine with controllable cutting depth designed in this scheme, first check if the entire device is functioning properly. Then, connect the device to suitable working equipment via the connecting rod 3. During patient treatment, the trephine head 9 cuts the relevant area. Simultaneously, the operator can determine the position of the trephine head 9 and the cutting depth by measuring the values ​​13 on the surface of the measuring cylinder 8. A displacement sensor 15 is installed in the mounting groove 14, allowing the position of the trephine head 9 to be determined via external equipment, thereby controlling the cutting depth. The simultaneous use of cylinder 8 and displacement sensor 15 improves the convenience and efficiency of operation. The protective shell 6 is threadedly connected to the second connecting pipe 12, and the protective shell 6 is located on the outer surface of the treble rod 7, which improves the stability of the treble rod 7 and treble drill head 9 during operation. The connecting rod 3 is threadedly connected to the first connecting pipe 10 through the connecting plate 2. The bottom of the connecting plate 2 extends into the fixing groove 11, which facilitates the stability between the connecting plate 2 and the mounting plate 1 and also facilitates disassembly. The fixing bolt 5 can fix the position of the treble rod 7. The sealing ring 4 improves the sealing between the connecting rod 3 and the connecting plate 2.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microscopic root canal tunneling drill with controllable cutting depth, comprising a mounting plate (1), characterized in that: The bottom of the mounting plate (1) is fixedly connected to a second connecting pipe (12), and a piercing rod (7) is provided at the bottom of the second connecting pipe (12). A measuring cylinder (8) is fixedly connected to the outer surface of the piercing rod (7). The measuring cylinder (8) has a measuring value (13) on its outer surface. The top of the piercing rod (7) extends into the second connecting pipe (12). A piercing drill bit (9) is fixedly connected to the piercing rod (7). An installation groove (14) is provided on the side of the piercing rod (7). A displacement sensor (15) is fixedly connected in the installation groove (14).

2. The microscopic root canal tunneling drill with controllable cutting depth according to claim 1, characterized in that: The top of the mounting plate (1) is fixedly connected to a first connecting pipe (10), and a fixing groove (11) is provided on the top of the mounting plate (1). A connecting plate (2) is provided on the top of the mounting plate (1), and the connecting plate (2) is threadedly connected to the first connecting pipe (10). The bottom of the connecting plate (2) extends into the fixing groove (11).

3. The microscopic root canal tunneling drill with controllable cutting depth according to claim 1, characterized in that: The outer surface of the piercing rod (7) is provided with a protective shell (6), which is threadedly connected to the second connecting pipe (12).

4. A microscopic root canal tunnel drill with controllable cutting depth according to claim 1, characterized in that: The mounting plate (1) is provided with a fixing bolt (5) on its side. The fixing bolt (5) passes through the mounting plate (1) and extends into the trephine head (9). The fixing bolt (5) is threadedly connected to the mounting plate (1).

5. A microscopic root canal tunneling drill with controllable cutting depth according to claim 2, characterized in that: A connecting rod (3) is fixedly connected to the top of the connecting plate (2), and a sealing ring (4) is fixedly connected at the connection between the connecting rod (3) and the connecting plate (2). The sealing ring (4) is made of rubber.

6. A microscopic root canal tunnel drill with controllable cutting depth according to claim 1, characterized in that: A protective plate (16) is snapped into the opening of the mounting groove (14), and the protective plate (16) is located on the side of the displacement sensor (15).

7. A microscopic root canal tunnel drill with controllable cutting depth according to claim 2, characterized in that: The first connecting pipe (10) and the second connecting pipe (12) are positioned opposite each other, and both the first connecting pipe (10) and the second connecting pipe (12) are made of stainless steel.

8. A microscopic root canal tunnel drill with controllable cutting depth according to claim 5, characterized in that: The trephine rod (7) and trephine cutter head (9) are both made of alloy steel, and the connecting rod (3) is located at the top center of the connecting plate (2).

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