Gutta-percha cutter

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a gutta-percha cutter used for implanting dental pulp in the oral cavity treatment process. The utility model provides an instrument which is simple in structure, convenient to use and capable of precisely controlling the cutting length of the tip end of gutta-percha. The gutta-percha cutting-off device comprises a base and is characterized in that a guide rail is arranged on the base, and a gutta-percha fixing end sliding block and a gutta-percha cutting-off end sliding block are arranged on the guide rail; a gutta-percha supporting table is arranged on the upper surface of the guide rail, and scale marks are arranged on the side of the gutta-percha supporting table; a clamping mechanism corresponding to the gutta-percha supporting table is arranged on the gutta-percha fixing end sliding block; a thread adjusting mechanism is arranged between the gutta-percha cutting-off end sliding block and the guide rail, and a cutter assembly is arranged at the end, corresponding to the gutta-percha fixing end sliding block, of the gutta-percha cutting-off end sliding block.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical instruments, and particularly relates to a dental adhesive cutting device for implanting dental pulp in the process of oral treatment. BACKGROUND

[0002] In the process of oral treatment, root canal treatment is a key step for ensuring that dental pulp infection is effectively removed and root canal filling is realized, and the accurate length of dental adhesive (also known as root canal filling material or dental adhesive tip) as an important component of filling material is directly related to the sealing effect of root canal filling and the success rate of the final treatment. At present, the tip of the dental adhesive needs to be cut after implantation to meet the requirement of matching the length of the root canal and prevent the phenomenon of excessive length or insufficient length from causing excessive filling or insufficient filling of the root tip. The tip of the dental adhesive with excessive length can cause root tip irritation, resulting in obvious discomfort or pain of the patient; and the tip with insufficient length can cause incomplete sealing of the root canal, increase the risk of root canal re-infection, and affect the treatment effect.

[0003] At present, the cutting of the tip of the dental adhesive mainly depends on manual operation by the doctor according to his own experience, and a dental scissors or a small cutting tool is usually used for cutting. This method has obvious limitations: firstly, the manual operation is difficult to achieve accurate control, and the error of the cutting length is large; secondly, the uneven cutting of the dental adhesive material is easily caused in the operation process, affecting the sealing of the subsequent root canal filling; in addition, the doctor needs to repeatedly try in the operation, which prolongs the operation time and increases the discomfort of the patient, thereby reducing the treatment efficiency and success rate. UTILIZABLE CONTENT

[0004] The utility model is just in view of the above problems, provide a kind of simple structure, it is easy to use, can precisely control the length of the instrument of dental adhesive tip cutting.

[0005] In order to realize the above-mentioned purposes of the utility model, the utility model adopts the following technical solutions, the utility model includes base, and its characterized in that: the guide rail is arranged on the base, the dental adhesive fixed end sliding block and the dental adhesive cutting end sliding block are arranged on the guide rail;The guide rail upper surface is provided with dental adhesive support table, and the dental adhesive support table side is provided with scale line;The dental adhesive fixed end sliding block is provided with the clamping mechanism corresponding to the dental adhesive support table;The screw adjusting mechanism is arranged between the dental adhesive cutting end sliding block and the guide rail, and the cutting knife assembly is arranged on the end corresponding to the dental adhesive fixed end sliding block of the dental adhesive cutting end sliding block.

[0006] As a preferred scheme of the utility model, the clamping mechanism comprises a clamping support arranged on the side of the gutta percha fixing end sliding block, a clamping rod is arranged in the clamping support, one end of the clamping rod passes through the gutta percha fixing end sliding block and corresponds to the gutta percha support table, the other end of the clamping rod passes through the clamping support and is provided with a handle, a first thrust spring is arranged between the clamping rod and the clamping support, and the first thrust spring makes the clamping rod receive a thrust in the direction of the gutta percha support table.

[0007] Further, the gutta percha support table is provided with a fixed baffle corresponding to the clamping rod.

[0008] As another preferred scheme of the utility model, the screw adjusting structure comprises an adjusting nut fixed with the gutta percha cutting end sliding block, the adjusting nut is matched with an adjusting screw, the end of the adjusting screw is provided with a stop block, and the guide rail is provided with a limiting groove matched with the adjusting screw and the stop block.

[0009] As a third preferred scheme of the utility model, the cutter assembly comprises a pressing handle, a guide rod matched with the gutta percha cutting end sliding block is arranged below the pressing handle, a clamping block preventing the guide rod from being separated from the gutta percha cutting end sliding block is arranged at the lower end of the guide rod, a second thrust spring is arranged between the pressing handle and the gutta percha cutting end sliding block, the second thrust spring makes the pressing handle receive an upward thrust, the end of the pressing handle is provided with a cutter body with a blade downward, and the cutter body corresponds to the gutta percha support table, the guide rail and the scale line.

[0010] Further, the cutter is provided with a vertical guide block, and the gutta percha cutting end sliding block is provided with a vertical sliding groove matched with the vertical guide block.

[0011] As a fourth preferred scheme of the utility model, the gutta percha fixing end sliding block is provided with a locking screw matched with the guide rail.

[0012] As a fifth preferred scheme of the utility model, the gutta percha fixing end sliding block is provided with a feeding hole corresponding to the gutta percha support table.

[0013] Further, a push rod is arranged corresponding to the feeding hole.

[0014] The utility model has the advantages of compact structure, simple operation, fast positioning of gutta percha, stable clamping and high-precision cutting. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the utility model.

[0016] Figure 2 is a top view of the utility model.

[0017] Figure 3 is an exploded view of the utility model.

[0018] In the drawing, 1 is a push rod, 2 is a gutta-percha fixed end sliding block, 3 is a locking screw, 4 is a scale line, 5 is a pressing handle, 6 is a second thrust spring, 7 is a gutta-percha cutting end sliding block, 8 is a stop block, 9 is a limiting groove, 10 is an adjusting nut, 11 is an adjusting screw, 12 is a base, 13 is a guide rod, 14 is a vertical sliding groove, 15 is a vertical guide block, 16 is a cutter body, 17 is a guide rail, 18 is a clamping rod, 19 is a handle, 20 is a clamping support, 21 is a first thrust spring, 22 is a gutta-percha body, 23 is a fixed stop bar, 24 is a material discharging hole, and 25 is a 0 point mark. DETAILED DESCRIPTION

[0019] The utility model discloses a base 12 is provided with guide rail 17, and guide rail 17 is provided with gutta-percha fixed end sliding block 2 and gutta-percha cutting end sliding block 7, and the gutta-percha can realize accurate positioning and adjustable cutting between two sliding blocks, and the flexibility and precision of cutting length control are improved, the upper surface of guide rail 17 is provided with gutta-percha support platform, and the side of gutta-percha support platform is provided with scale line 4, which provides stable gutta-percha support base surface and cooperates with scale line 4 to carry out visual length positioning, and the operator can accurately set the cutting length, the gutta-percha fixed end sliding block 2 is provided with the clamping mechanism corresponding with gutta-percha support platform, and after the length of gutta-percha body 22 is set, it can be reliably clamped to avoid sliding or deviation and guarantee cutting precision, the screw adjusting mechanism is arranged between gutta-percha cutting end sliding block 7 and guide rail 17, one end of gutta-percha cutting end sliding block 7 corresponding with gutta-percha fixed end sliding block 2 is provided with cutter assembly, the position of the cutting end of gutta-percha body 22 is fine-tuned and controlled, the cutting position is accurately adjustable, and thus the processing demand of different length gutta-percha bodies 22 is met.

[0020] The clamping mechanism comprises a clamping support 20 arranged on the side of the gutta-percha fixing end sliding block 2, a clamping rod 18 is arranged in the clamping support 20, one end of the clamping rod 18 penetrates the gutta-percha fixing end sliding block 2 and corresponds to the gutta-percha support table; the clamping structure is compact in layout, can effectively control the position of the clamping point, and improve the clamping stability; the other end of the clamping rod 18 penetrates the clamping support 20 and is provided with a handle 19; a first thrust spring 21 is arranged between the clamping rod 18 and the clamping support 20; the first thrust spring 21 causes the clamping rod 18 to be subjected to a thrust force in the direction of the gutta-percha support table; the clamping rod 18 always applies a pressing force when the handle 19 is not operated, realizes automatic clamping and has a certain buffering property, and improves the operation convenience and reliability.

[0021] A fixed stop bar 23 corresponding to the clamping rod 18 is arranged on the gutta-percha support table; the position of the gutta-percha is further fixed in cooperation with the clamping rod 18, so as to prevent the gutta-percha from rotating or deviating during clamping, and improve the overall positioning stability.

[0022] The screw adjusting structure comprises an adjusting nut 10 fixed with the gutta-percha cutting end sliding block 7, the adjusting nut 10 cooperates with an adjusting screw 11, the end of the adjusting screw 11 is provided with a stop block 8, and the guide rail 17 is provided with a limiting groove 9 cooperating with the adjusting screw 11 and the stop block 8; the fine adjustment of the gutta-percha cutting end sliding block 7 is realized through the screw transmission structure, and the limiting groove 9 and the stop block 8 ensure that the adjusting screw 11 cannot move axially.

[0023] The cutter assembly comprises a pressing handle 5, a guide rod 13 cooperating with the gutta-percha cutting end sliding block 7 is arranged below the pressing handle 5, a clamping block preventing the guide rod 13 from being pulled out of the gutta-percha cutting end sliding block 7 is arranged at the lower end of the guide rod 13, and a second thrust spring 6 is arranged between the pressing handle 5 and the gutta-percha cutting end sliding block 7; the second thrust spring 6 causes the pressing handle 5 to be subjected to an upward thrust force; the pressing handle 5 can be manually pressed to control the cutter to move downward, and the spring action can realize automatic reset, thereby improving the use convenience and operation efficiency; the end of the pressing handle 5 is provided with a cutter body 16 with a downward blade, the cutter body 16 corresponds to the gutta-percha support table, the guide rail 17 and the scale line 4; the cutting action accurately corresponds to the gutta-percha positioning structure, so as to ensure the consistency of the cutting position and the operation intuitiveness.

[0024] A vertical guide block 15 is arranged on the side of the cutter, and a vertical sliding groove 14 cooperating with the vertical guide block 15 is arranged on the gutta-percha cutting end sliding block 7; the vertical guide block 15 ensures the stable guiding movement of the cutter in the vertical direction, prevents deviation, and improves the cutting precision and safety.

[0025] A locking screw 3 cooperating with the guide rail 17 is arranged on the gutta-percha fixing end sliding block 2; the position of the gutta-percha fixing end sliding block 2 can be locked through the locking screw 3, so as to prevent the gutta-percha fixing end sliding block 2 from being displaced due to vibration or misoperation, and ensure the structural stability during operation.

[0026] The gum fixing end slider 2 is provided with a feeding hole 24 corresponding to the gum supporting table; a push rod 1 is also provided corresponding to the feeding hole 24; the gum body 22 is conveniently inserted, and the lifting device is smooth and convenient to operate.

[0027] The scale line 4 is provided with corresponding digital identification on the side, which is convenient for the operator to calculate the length of the gum body 22.

[0028] The following describes the one-time action process of cutting the gum body 22 in combination with the drawings: 1, root canal measurement: the doctor first measures the length of the patient's tooth root canal by the oral measurement tool, and records the length as the shearing length reference of the gum body 22, and at the same time, the 0 point mark 25 is made on the corresponding one end of the thick head of the gum body 22.

[0029] 2, insert the gum body 22: the operator pulls the handle 19 of the clamping mechanism, the clamping rod 18 is separated from the fixed baffle 23, the gum body 22 is inserted through the feeding hole 24 on the gum fixing end slider 2, the thick head of the gum body 22 is located on the gum supporting table, and the sharp end of the gum body 22 extends out of the gum supporting table.

[0030] 3, positioning and clamping: the operator releases the handle 19 of the clamping mechanism, and the clamping rod 18 is pushed to the gum supporting table under the action of the first push spring 21, so that the gum body 22 is firmly pressed on the supporting table, the gum body 22 is fixed, and the sliding of the gum body 22 is prevented.

[0031] 4, adjust the cutting position: the screw rod 11 is rotated to adjust the screw thread adjusting mechanism, the 0 point mark 25 of the gum body 22 and the scale line 4 are matched, the cutting position of the gum body 22 is determined, and the gum cutting end slider 7 is accurately moved to the required cutting position along the guide rail 17.

[0032] 5, execute cutting: the pressure handle 5 on the cutter assembly is pressed, the pressure handle 5 drives the blade to vertically cut into the gum body 22, and the cutting of the gum body 22 is realized. Under the action of the second push spring 6, the pressure handle 5 automatically rebounds after cutting is completed, and the blade is reset.

[0033] 6, release the clamping: the operator pulls the handle 19 of the clamping mechanism, releases the clamping rod 18, and releases the fixing of the gum body 22.

[0034] 7, take out the gum: the gum with the sheared length is taken out from the supporting table, and can be directly used for root canal filling operation.

[0035] It can be understood that the above specific description of the utility model is only used for illustrating the utility model and is not limited to the technical scheme described in the utility model embodiment, and the person skilled in the art should understand that the utility model can still be modified or equivalently replaced to achieve the same technical effect, as long as the use needs are met, it is within the protection scope of the utility model.

Claims

1. A dental cord cutter comprising a base (12) characterised in that: The base (12) is provided with a guide rail (17), the guide rail (17) is provided with a gutta-percha fixing end sliding block (2) and a gutta-percha cutting end sliding block (7); the upper surface of the guide rail (17) is provided with a gutta-percha support table, the lateral side of the gutta-percha support table is provided with a scale line (4); the gutta-percha fixing end sliding block (2) is provided with a clamping mechanism corresponding to the gutta-percha support table; the gutta-percha cutting end sliding block (7) and the guide rail (17) are provided with a screw adjusting mechanism, and one end of the gutta-percha cutting end sliding block (7) corresponding to the gutta-percha fixing end sliding block (2) is provided with a cutter assembly.

2. The gutta-percha cutter of claim 1, wherein: The clamping mechanism comprises a clamping support (20) arranged on the lateral side of the gutta-percha fixing end sliding block (2), the clamping support (20) is provided with a clamping rod (18) therein, one end of the clamping rod (18) penetrates through the gutta-percha fixing end sliding block (2) and corresponds to the gutta-percha support table; the other end of the clamping rod (18) penetrates through the clamping support (20) and is provided with a handle (19); the first thrust spring (21) is arranged between the clamping rod (18) and the clamping support (20); the first thrust spring (21) causes the clamping rod (18) to be subjected to a thrust force in the direction of the gutta-percha support table.

3. The gutta-percha cutter of claim 2, wherein: The gutta-percha support table is provided with a fixed baffle (23) corresponding to the clamping rod (18).

4. The gutta-percha cutter of claim 1, wherein: The screw adjusting mechanism comprises an adjusting nut (10) fixed with the gutta-percha cutting end sliding block (7), the adjusting nut (10) cooperates with an adjusting screw (11), the end of the adjusting screw (11) is provided with a stop block (8), and the guide rail (17) is provided with a limiting groove (9) cooperating with the adjusting screw (11) and the stop block (8).

5. The gutta-percha cutter of claim 1, wherein: The cutter assembly comprises a pressing handle (5), the lower portion of the pressing handle (5) is provided with a guide rod (13) cooperating with the gutta-percha cutting end sliding block (7), the lower end of the guide rod (13) is provided with a clamping block preventing the guide rod (13) from being separated from the gutta-percha cutting end sliding block (7), and the second thrust spring (6) is arranged between the pressing handle (5) and the gutta-percha cutting end sliding block (7); the second thrust spring (6) causes the pressing handle (5) to be subjected to an upward thrust force; the end of the pressing handle (5) is provided with a cutter body (16) with a downward blade, and the cutter body (16) corresponds to the gutta-percha support table, the guide rail (17) and the scale line (4).

6. The gutta-percha cutter of claim 5, wherein: The cutter is provided with a vertical guide block (15) on the lateral side, and the gutta-percha cutting end sliding block (7) is provided with a vertical sliding groove (14) cooperating with the vertical guide block (15).

7. The gutta-percha cutter of claim 1, wherein: The gutta-percha fixing end sliding block (2) is provided with a locking screw (3) cooperating with the guide rail (17).

8. The gutta-percha cutter of claim 1, wherein: The gutta-percha fixing end sliding block (2) is provided with a feeding hole (24) corresponding to the gutta-percha support table.

9. The gutta-percha cutter of claim 8, wherein: A push rod (1) is further arranged corresponding to the feeding hole (24).

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