High-strength dental pulp cutter

Abstract

The invention discloses a high-strength dental pulp cutter, and relates to the technical field of dental pulp cutting, the high-strength dental pulp cutter comprises a hollow cylinder and a disinfection cylinder, a cutting mechanism is arranged outside the hollow cylinder, the cutting mechanism comprises a first motor arranged outside the hollow cylinder, and the output end of the first motor is provided with a first transmission rod; the side, away from the first motor, of the first transmission rod is fixedly connected with a quadrangular rotor, an inclined block is arranged below the quadrangular rotor, a spring is fixedly connected below the inclined block, the side, away from the inclined block, of the spring is fixedly connected with a connecting rod, the side edge of the connecting rod is slidably connected with a connecting cylinder, and the side, away from the connecting cylinder, of the connecting rod is provided with a scraper. After the first motor is started, the four-corner rotating piece is driven to rotate through the first transmission rod, high precision and low damage of the scraper in the cutting process are achieved, dragging of the scraper to root pith in the crown pith cutting process is effectively avoided, the risk that the root pith is physically damaged is reduced, and therefore the normal physiological function of the root pith is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of dental pulp cutting, in particular to a high-strength dental pulp cutter. Background Art

[0002] The dental pulp is an important component inside the tooth. It is located in the central cavity of the tooth and is surrounded by dentin. The dental pulp is mainly composed of soft tissue, which is rich in blood vessels, nerves and lymphatic tissue. These tissues together constitute the life basis of the dental pulp, providing the teeth with necessary nutrition and sensory functions. When the dental pulp is diseased, such as pulpitis, the teeth often become brittle and easily broken. At this time, the patient may feel severe pain, and even affect their daily diet and sleep. Root canal treatment is usually required for the treatment of dental pulp lesions. During the treatment, the doctor will first perform local anesthesia on the patient, then remove the carious tooth tissue, clean the cavity, measure the length of the tooth, and insert a special nickel-titanium instrument into the root canal to remove the dental pulp. Afterwards, the root canal is disinfected and cleaned, and the root canal is filled with gutta-percha and bioceramics.

[0003] A search revealed Chinese patent number CN209847417U, which discloses a dental pulpotomy device. This device addresses the problem of pulpotomy performed with existing instruments often leaving infected pulp tissue and damaging healthy pulp tissue near the apex. The present invention employs a technical solution: a dental pulpotomy device comprising a needle body, one end of which is connected to a handle and the other end of which is a working end. The working end of the needle body is bent into an angled shape, the distal end of which forms a cutting section with a blade, and the proximal end of which forms a burr section with burrs on the outer side. The working end of the needle body can penetrate into the pulp cavity beyond the reach of a ball drill or a pick, separating and removing deeply infected pulp tissue from healthy pulp, while preserving the healthy pulp in the apical portion of the root canal. The dental pulpotomy device can be used to remove coronal pulp tissue from the root canal of permanent teeth with an open apical foramen, ensuring the integrity of the apical pulp tissue and periapical tissue within the root canal. The smooth separation surface facilitates subsequent pulp capping treatment.

[0004] However, pulp preservation is now advocated for reversible pulpitis and early pulpitis, that is, using a slow handpiece needle or laser to remove the inflamed coronal pulp while preserving the healthy root pulp. In clinical operation, it is easy to pull the root pulp when removing the coronal pulp. During the process of removing the coronal pulp, the scraper is likely to involve the root pulp, which may cause physical damage to the root pulp and affect the normal physiological function of the root pulp. Therefore, a high-strength pulp cutter is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that, during the pulpotomy process, the crown surface of the patient's tooth is generally opened and the coronal pulp is removed to retain the root pulp. During the coronal pulp removal process, the scraper is easily involved in the root pulp, which may cause physical damage to the root pulp and affect the normal physiological function of the root pulp. A high-strength pulpotomy device is proposed to solve the problem in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A high-strength pulp cutter comprises a hollow cylinder and a disinfection cylinder, a cutting mechanism is provided on the outside of the hollow cylinder, the cutting mechanism comprises a first motor arranged outside the hollow cylinder, a first transmission rod is provided at the output end of the first motor, a four-corner rotating piece is fixedly connected to the side of the first transmission rod away from the first motor, an inclined block is provided below the four-corner rotating piece, a spring is fixedly connected to the bottom of the inclined block, a connecting rod is fixedly connected to the side of the spring away from the inclined block, a connecting cylinder is slidably connected to the side of the connecting rod, a scraper is provided on the side of the connecting rod away from the connecting cylinder, after the first motor is started, the four-corner rotating piece is driven to rotate by the first transmission rod, the rotation of the four-corner rotating piece causes it to continuously press the inclined block, and when the inclined block is subjected to pressure, the spring generates elastic potential energy, the spring vibrates at high frequency and drives the scraper to maintain high-frequency vibration through the connecting rod during the cutting process.

[0008] Among them, the scraper is made of tungsten steel, which has a very high hardness, usually higher than most conventional metals and alloys, enabling it to cut tooth tissue more effectively. Wear resistance: Tungsten steel has excellent wear resistance and can maintain its sharpness for a long time. Sharpness: The sharpness of tungsten steel helps improve the doctor's cutting efficiency and deal with various patients in a timely manner.

[0009] The above technical solution further includes:

[0010] The hollow cylinder is rotationally connected to the first transmission rod, the hollow cylinder is fixedly connected to the connecting cylinder, the side of the inclined block is fixedly connected to the limiting plate, a limiting groove is provided inside the hollow cylinder, and the limiting plate is slidingly connected to the limiting groove.

[0011] The side of the hollow cylinder is fixedly connected to the chassis, and the first motor is fixedly installed inside the chassis.

[0012] An anti-slip handle is fixedly connected to the top of the hollow cylinder, and the anti-slip handle is fixedly connected to the chassis.

[0013] A disinfection mechanism is provided inside the disinfection barrel, and the disinfection mechanism includes a second motor provided inside the disinfection barrel, a second transmission rod is provided at the output end of the second motor, a first gear is fixedly connected to the side of the second transmission rod away from the second motor, a second gear is meshedly connected to the side of the first gear, and a cleaning soft barrel is fixedly connected above the second gear.

[0014] The disinfection barrel is fixedly connected to the second motor, the second transmission rod is rotationally connected to the disinfection barrel, and the second gear is rotationally connected to the disinfection barrel.

[0015] A side of the first gear away from the second gear is meshedly connected with a third gear, and an identical group of cleaning cartridges is arranged above the third gear.

[0016] A drainage valve pipe is fixedly installed on the side of the disinfection cylinder.

[0017] Wherein, the drainage valve pipe does not perform drainage operation when the disinfection mechanism is in operation.

[0018] A traction line is fixedly connected above the chassis, and the traction line is fixedly connected to the disinfection cylinder.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, the four-corner rotating plate and the inclined block mechanism driven by the first motor, as well as the high-frequency vibration of the spring and the connecting rod, achieve high precision and low damage of the scraper during the cutting process. This design effectively avoids the scraper from pulling on the root pulp during the removal of the coronary pulp, reduces the risk of physical damage to the root pulp, and thus protects the normal physiological function of the root pulp.

[0021] 2. In the present invention, the gears and cleaning cartridge mechanism driven by the second motor inside the disinfection cartridge achieve rapid and complete disinfection of the cutting mechanism and scraper by stirring the disinfectant and rotating and squeezing each other. This design effectively prevents the occurrence of postoperative bacterial infection and improves the safety and reliability of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a high-strength pulpotomy proposed by the present invention;

[0023] Figure 2 Schematic diagram of the external three-dimensional structure of the cutting mechanism of the present invention;

[0024] Figure 3 Schematic diagram of the internal three-dimensional structure of the cutting mechanism of the present invention;

[0025] Figure 4 Schematic diagram of the external three-dimensional structure of the disinfection mechanism of the present invention;

[0026] Figure 5 Schematic diagram of the internal three-dimensional structure of the disinfection mechanism of the present invention;

[0027] Figure 6 for Figure 2 A schematic diagram of the structure at center A;

[0028] Figure 7 for Figure 3 A magnified schematic diagram of the structure in the middle.

[0029] In the figure: 1. Hollow cylinder; 2. First motor; 3. First transmission rod; 4. Four-corner rotating plate; 5. Bevel block; 6. Spring; 7. Connecting rod; 8. Scraper; 9. Connecting cylinder; 10. Limit plate; 11. Limit groove; 12. Chassis; 13. Anti-slip handle; 14. Chassis; 15. Disinfection cylinder; 16. Second motor; 17. Second transmission rod; 18. First gear; 19. Second gear; 20. Cleaning soft cylinder; 21. Third gear; 22. Drain valve pipe; 23. Pull line. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1

[0032] like Figure 1-Figure 7 As shown, a high-strength pulp cutter proposed by the present invention includes a hollow cylinder 1 and a disinfection cylinder 15. A cutting mechanism is provided on the outside of the hollow cylinder 1. The cutting mechanism includes a first motor 2 provided on the outside of the hollow cylinder 1. A first transmission rod 3 is provided at the output end of the first motor 2. A four-corner rotating piece 4 is fixedly connected to the side of the first transmission rod 3 away from the first motor 2. An inclined block 5 is provided below the four-corner rotating piece 4. A spring 6 is fixedly connected below the inclined block 5. A connecting rod 7 is fixedly connected to the side of the spring 6 away from the inclined block 5. A connecting cylinder 9 is slidably connected to the side of the connecting rod 7. A scraper 8 is provided on the side of the connecting rod 7 away from the connecting cylinder 9. After the first motor 2 is started, the four-corner rotating piece 4 is driven to rotate through the first transmission rod 3. The rotation of the four-corner rotating piece 4 causes it to continuously press the inclined block 5. When the inclined block 5 is subjected to pressure, the spring 6 generates elastic potential energy. The spring 6 vibrates at high frequency and drives the scraper 8 to maintain high-frequency vibration through the connecting rod 7 during the cutting process.

[0033] The hollow cylinder 1 is rotationally connected to the first transmission rod 3, and is fixedly connected to the connecting cylinder 9. The side of the inclined block 5 is fixedly connected to the limit plate 10. A limit groove 11 is opened inside the hollow cylinder 1, and the limit plate 10 and the limit groove 11 are slidingly connected.

[0034] The side of the hollow cylinder 1 is fixedly connected to the chassis 12 , and the first motor 2 is fixedly installed inside the chassis 12 .

[0035] A disinfection mechanism is provided inside the disinfection cylinder 15, and the disinfection mechanism includes a second motor 16 provided inside the disinfection cylinder 15. A second transmission rod 17 is provided at the output end of the second motor 16. A first gear 18 is fixedly connected to the side of the second transmission rod 17 away from the second motor 16. The side of the first gear 18 is meshed with a second gear 19, and a cleaning soft cylinder 20 is fixedly connected above the second gear 19.

[0036] The disinfection barrel 15 is fixedly connected to the second motor 16 , the second transmission rod 17 is rotationally connected to the disinfection barrel 15 , and the second gear 19 is rotationally connected to the disinfection barrel 15 .

[0037] A third gear 21 is meshedly connected to the first gear 18 at a side away from the second gear 19 . A set of identical cleaning cartridges 20 is disposed above the third gear 21 .

[0038] In this embodiment, the cutting mechanism arranged outside the hollow cylinder 1 is started, and the first motor 2 in the cutting mechanism starts to run. When the first motor 2 is running, it will control the first transmission rod 3 arranged at its output end to rotate, so that the first transmission rod 3 passes through the interior of the hollow cylinder 1 and rotates. The first transmission rod 3 is fixedly connected to a four-corner rotating piece 4 at one end inside the hollow cylinder 1. When the first transmission rod 3 rotates, it drives the four-corner rotating piece 4 to rotate. Four groups of pressing pieces are arranged on the side of the four-corner rotating piece 4. When the four-corner rotating piece 4 rotates, the four groups of pressing pieces continuously press the inclined block 5 arranged below the four-corner rotating piece 4, so that the inclined block 5 continuously moves downward. A spring 6 is fixedly connected to the bottom of the inclined block 5. The continuous downward movement of the inclined block 5 will cause the spring 6 to repeatedly accumulate and release elastic potential energy. A connecting rod 7 is fixedly connected to the other end of the spring 6. 7 is slidably connected to the connecting tube 9, and the connecting rod 7 is fixed at the bottom of the hollow tube 1, so that the connecting rod 7 will not separate from the inside of the connecting tube 9. The force of the spring 6 accumulating and releasing the elastic potential energy will cause the connecting rod 7 to move up and down and form high-frequency vibration. Since the limiting plate 10 is fixedly connected to the side of the inclined block 5, the other side of the limiting plate 10 is slidably connected to the limiting groove 11 opened inside the hollow tube 1. The limiting groove 11 is relatively small and limits the movement of the inclined block 5 through the limiting plate 10, so that the distance of the connecting rod 7 vibrating up and down will not be very large. The other end of the connecting rod 7 is fixedly connected to the scraper 8, so that when the staff uses the scraper 8 to cut the pulp, when the scraper 8 touches the pulp, the pulp is gradually cut off by high-frequency vibration, and will not be involved with the root pulp, ensuring that the health of the root pulp is not affected after the coronal pulp is separated.

[0039] After using the device to treat the patient, disinfection needs to be carried out immediately. The staff can pour disinfectant into the disinfection cylinder 15, and then start the disinfection mechanism. The second motor 16 fixedly installed at the bottom of the disinfection cylinder 15 starts to run. When the second motor 16 runs, it starts to control the second transmission rod 17 set at its output end to rotate. The second transmission rod 17 passes through the partition set inside the second motor 16 to drive the first gear 18 to rotate, so that when the first gear 18 rotates, it can drive the second gear 19 meshing with its side to start rotating. When the second gear 19 rotates, it will drive the gear set above it The cleaning cylinder 20 starts to rotate, and the third gear 21 is meshed with the other side of the first gear 18 away from the second gear 19. The rotation of the first gear 18 will drive the third gear 21 to rotate at the same time. There are multiple groups of components similar to the third gear 21, and each group of third gears 21 is provided with the same group of cleaning cylinders 20, so that the second gear 19 and the multiple groups of third gears 21 can drive the multiple groups of cleaning cylinders 20 to rotate. The multiple groups of cleaning cylinders 20 stir the disinfectant and rotate and squeeze each other, so as to quickly and thoroughly disinfect the connecting rod 7 and the scraper 8, thereby preventing bacterial infection in the later stage.

[0040] Example 2

[0041] like Figure 1-Figure 7 As shown, based on the first embodiment, a non-slip handle 13 is fixedly connected to the top of the hollow tube 1 , and the non-slip handle 13 is fixedly connected to the chassis 14 .

[0042] A drainage valve pipe 22 is fixedly installed on the side of the disinfection cylinder 15.

[0043] A traction line 23 is fixedly connected above the chassis 14 , and the traction line 23 is fixedly connected to the disinfection cylinder 15 .

[0044] In this embodiment, a non-slip handle 13 is fixedly connected to the top of the hollow cylinder 1, and raised non-slip grooves are distributed around the non-slip handle 13 to prevent medical staff from slipping when using the device. A chassis 14 is fixedly connected to the top of the non-slip handle 13, and the chassis 14 plays a limiting role. A traction line 23 is fixedly connected above the chassis 14, and the chassis 14 is connected to the disinfection cylinder 15 through the traction line 23. A drain valve pipe 22 is fixedly installed on the side of the disinfection cylinder 15. After the disinfection mechanism is completed, the sewage is discharged through the drain valve pipe 22.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength pulpotomy device, comprising a hollow cylinder (1) and a sterilizing cylinder (15), characterized in that: A cutting mechanism is provided on the outside of the hollow cylinder (1), and the cutting mechanism comprises a first motor (2) provided on the outside of the hollow cylinder (1); a first transmission rod (3) is provided at the output end of the first motor (2); a four-corner rotating piece (4) is fixedly connected to the side of the first transmission rod (3) away from the first motor (2); an inclined block (5) is provided below the four-corner rotating piece (4); a spring (6) is fixedly connected below the inclined block (5); a connecting rod (7) is fixedly connected to the side of the spring (6) away from the inclined block (5); and the connecting rod (7) is fixedly connected to the side of the spring (6) away from the inclined block (5). The rod (7) is slidably connected to a connecting tube (9) on the side, and a scraper (8) is provided on the side of the connecting rod (7) away from the connecting tube (9). After the first motor (2) is started, the four-corner rotating plate (4) is driven to rotate through the first transmission rod (3). The four-corner rotating plate (4) rotates so that it continuously presses the inclined block (5). When the inclined block (5) is subjected to pressure, the spring (6) generates elastic potential energy. The spring (6) vibrates at a high frequency and drives the scraper (8) to maintain high-frequency vibration during the cutting process through the connecting rod (7).

2. A high-strength pulpotomy according to claim 1, characterized in that: The hollow cylinder (1) is rotatably connected to the first transmission rod (3), the hollow cylinder (1) is fixedly connected to the connecting cylinder (9), the side of the inclined block (5) is fixedly connected to the limiting plate (10), a limiting groove (11) is provided inside the hollow cylinder (1), and the limiting plate (10) is slidably connected to the limiting groove (11).

3. The high-strength pulpotomy device according to claim 1, characterized in that: The side of the hollow cylinder (1) is fixedly connected to the chassis (12), and the first motor (2) is fixedly installed inside the chassis (12).

4. The high-strength pulpotomy device according to claim 1, characterized in that: An anti-slip handle (13) is fixedly connected to the top of the hollow cylinder (1), and the anti-slip handle (13) is fixedly connected to the chassis (14).

5. The high-strength pulpotomy device according to claim 1, characterized in that: A disinfection mechanism is provided inside the disinfection cylinder (15), and the disinfection mechanism includes a second motor (16) provided inside the disinfection cylinder (15), a second transmission rod (17) is provided at the output end of the second motor (16), a first gear (18) is fixedly connected to the side of the second transmission rod (17) away from the second motor (16), a second gear (19) is meshedly connected to the side of the first gear (18), and a cleaning soft cylinder (20) is fixedly connected above the second gear (19).

6. The high-strength pulpotomy device according to claim 5, characterized in that: The disinfection barrel (15) is fixedly connected to the second motor (16), the second transmission rod (17) is rotationally connected to the disinfection barrel (15), and the second gear (19) is rotationally connected to the disinfection barrel (15).

7. The high-strength pulpotomy device according to claim 5, characterized in that: The first gear (18) is meshedly connected to a third gear (21) on a side away from the second gear (19), and a group of identical cleaning cartridges (20) are arranged above the third gear (21).

8. The high-strength pulpotomy device according to claim 1, characterized in that: A drainage valve pipe (22) is fixedly mounted on the side of the disinfection cylinder (15).

9. The high-strength pulpotomy device according to claim 4, characterized in that: A traction line (23) is fixedly connected above the chassis (14), and the traction line (23) is fixedly connected to the disinfection cylinder (15).

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