Multifunctional ultrasonic dental elevator for maxillary third molar extraction

Abstract

The application discloses a multifunctional ultrasonic dental elevator special for maxillary third molar root extraction, which comprises a working end, a joint part connected with the working end, and a handle end connected with the joint part; the working end comprises a blade slidingly arranged on the working end, a plurality of elastic members connected with the blade, a plurality of fixing plates connected with the elastic members, and a pulley connected with the bottom of the blade; the blade is connected with the pulley through a plurality of connecting lines; the joint part comprises an upper joint part connected with the working end and a lower joint part; and the handle end comprises a central control system, a blade adjusting button, a water quantity adjusting button, an illumination intensity button, a suction pipe adjusting button and a photographing emergency stop button connected with the central control system. The multifunctional ultrasonic dental elevator integrates multiple functions, avoids the replacement of different instruments during tooth extraction, greatly saves tooth extraction time, and improves the use efficiency and use range of the dental elevator.

Description

Technical Field

[0001] This invention relates to the field of dental elevators, and more particularly to a multifunctional ultrasonic dental elevator specifically designed for the extraction of fractured roots of the maxillary third molar. Background Technology

[0002] Tooth extraction instruments include dental elevators, which are used to loosen teeth. An elevator consists of a handle, shaft, and beak. Various types of dental elevators are available to suit different needs. Commonly used types include straight elevators and apical elevators. Straight elevators have a handle, shaft, and beak that are in a straight line or slightly curved. The beak is concave, grooved, with blades on both sides and a rounded end. Beaks can be wide or narrow. Apical elevators come in both straight and curved types, with a narrow, thin beak and a pointed end. The use of dental elevators is based on three mechanical principles: the wedge principle (using wedge force), the wheel and axle principle (using rotational force), and the lever principle (using prying force).

[0003] Currently, most dental elevators in existing technologies work by providing a specific angle of vision with a mouth mirror under light. However, the mouth mirror surface is often contaminated and interrupts the field of vision during operation, resulting in low efficiency. Furthermore, the working end of existing root elevators is not designed in an ideal shape and has a certain thickness, which is not conducive to the tip entering the gap between the tooth root and the pulp bone.

[0004] Therefore, it is necessary to improve existing technologies to solve the above problems. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a multifunctional ultrasonic dental elevator specifically for the extraction of fractured roots of maxillary third molars.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a multifunctional ultrasonic dental elevator for the extraction of fractured roots of maxillary third molars, comprising: a working end, a joint connected to the working end, and a handle end connected to the joint.

[0007] The working end includes: a blade slidably disposed on the working end, a plurality of elastic elements connected to the blade, a plurality of fixed plates connected to the elastic elements, and a pulley connected to the bottom of the blade; the blade and the pulley are connected by a plurality of connecting lines; an ultrasonic disinfection probe is disposed on the working end;

[0008] The joint includes an upper joint and a lower joint connected to the working end; a first self-locking component is provided between the upper joint and the lower joint, and a second self-locking component is provided between the lower joint and the handle section; the rotation adjustment angle of the upper joint and the lower joint is 45-360 degrees.

[0009] The handle end includes: a central control system, and blade adjustment buttons, water volume adjustment buttons, lighting intensity buttons, suction tube adjustment buttons, and photo emergency stop buttons connected to the central control system; the bottom of the handle end is also provided with a display screen, which is connected to the central control system through a communication unit.

[0010] In a preferred embodiment of the present invention, the blade includes a first blade and a second blade, the connecting line includes a first connecting line and a second connecting line, the first blade is connected to the pulley via the first connecting line, and the second blade is connected to the pulley via the second connecting line in the opposite direction to the first connecting line; the pulley is connected to a micro motor; the micro motor is disposed inside the handle end and is electrically connected to the blade adjustment button.

[0011] In a preferred embodiment of the present invention, the central control system is provided with a Bluetooth unit, the Bluetooth unit is connected to the display screen through a communication unit, and the Bluetooth unit is connected to a control terminal.

[0012] In a preferred embodiment of the present invention, the display screen is connected to a color recognition unit and a prompting unit, and the central control system is connected to a processing unit; the color recognition unit is used to identify the color difference between the fractured root surface and the alveolar bone and generate color image data; the processing unit is used to transmit the color image data to the control terminal via the Bluetooth unit to cooperate with software processing to generate gap data; and the prompting unit is used to display the working gap position on the display screen.

[0013] In a preferred embodiment of the present invention, a water outlet is provided on the working end, and a water storage tank is connected to the water outlet. The water storage tank is located inside the handle end. An electric water pump is provided inside the water storage tank, and the electric water pump is electrically connected to the water volume adjustment button.

[0014] In a preferred embodiment of the present invention, a camera is provided inside the working end, a light is provided inside the camera, the camera and the light are connected to the central control system, the camera is electrically connected to the photo-taking emergency stop button, and the light is electrically connected to the lighting intensity button.

[0015] In a preferred embodiment of the present invention, a suction tube is provided on the working end, the suction tube is connected to a negative pressure suction device, the negative pressure suction device is disposed inside the handle end, and a length adjustment unit is connected to the bottom of the suction tube, the length adjustment unit being electrically connected to the suction tube adjustment button.

[0016] In a preferred embodiment of the present invention, a sensing unit is provided inside the blade for sensing contact with soft tissue; a buzzer is provided inside the handle end, the buzzer is connected to the working end, and an alarm unit and an emergency stop unit are provided inside the buzzer. The alarm unit is used to sound an alarm after contact with soft tissue, and the emergency stop unit is used to stop the working end in an emergency to protect the soft tissue.

[0017] In a preferred embodiment of the present invention, a weak suction unit is provided between the upper joint and the lower joint to reduce aerosol infection during operation.

[0018] In a preferred embodiment of the present invention, the handle end is configured in an ergonomic design and the working end is provided with a skin-friendly surface material.

[0019] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0020] (1) This invention provides a multifunctional ultrasonic dental elevator for the extraction of fractured roots of maxillary third molars. It is equipped with a working end, a joint and a handle end, integrating multiple functions into one, avoiding the need to change different instruments during tooth extraction, greatly saving extraction time, and also improving the efficiency and scope of use of the dental elevator.

[0021] (2) The present invention is provided with a working end, and the width of the wedge head is adjusted by the set pulley and elastic element, so that the working end can be wedged into the working gap between the tooth root section and the alveolar bone. It can adapt to different working gap widths and at the same time prevent lateral energy from damaging the alveolar bone. It solves the problem that the working end is not conducive to entering the gap between the tooth root and the pulp bone due to a certain thickness in the prior art, expands the application range of the dental elevator, and improves the tooth extraction efficiency of the dental elevator.

[0022] (3) The present invention is provided with a joint, which can be rotated and adjusted to the required angle according to different needs through the first self-locking component and the second self-locking component, so as to ensure that the dental elevator can be used for different working needs; and a weak suction unit is provided between the upper joint and the lower joint, which can reduce the risk of aerosol infection during operation and improve the safety and hygiene of the dental elevator during use.

[0023] (4) The present invention is equipped with a handle end. Through the central control system and the blade adjustment button, water volume adjustment button, lighting intensity button, suction tube adjustment button and photo emergency stop button connected to the central control system, the working end width, water output, lighting intensity, suction force and length of the suction tube can be easily adjusted, and real-time video and photo can be taken. The superposition of multiple functions greatly increases the efficiency of dental elevator use. The bottom of the handle end is also equipped with a display screen, which can automatically transmit data to a mobile phone or computer storage path in real time via Bluetooth, and can also capture photos of the field of vision in time, so as to communicate with patients and conduct relevant education.

[0024] (5) The display screen of the present invention is connected to a color recognition unit and a prompting unit, and the central control system is connected to a processing unit. By combining software to identify the color difference between the fractured root surface and the alveolar bone in real time, the working gap position is displayed at the junction of the color difference, which makes it convenient for the operator to accurately place the working end in the working gap, thus improving the operation accuracy and safety when using the dental elevator.

[0025] (6) The present invention is equipped with a sensing unit and a buzzer. The buzzer is equipped with an alarm unit and an emergency stop unit. When it senses contact with soft tissue, it can promptly alarm and stop the operation, avoiding the problem of patient injury due to improper operation, improving the effectiveness of the dental elevator, and ensuring the safety of the dental elevator.

[0026] (7) A weak suction unit is provided between the upper joint and the lower joint to reduce aerosol infection during operation; the handle end is designed in an ergonomic shape and the working end is provided with a skin-friendly surface material to reduce the risk of soft tissue damage during operation and improve the safety of the dental elevator. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is an overall three-dimensional structural diagram of a preferred embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional perspective view of the handle end of the present invention;

[0030] Figure 3 yes Figure 1 Overall three-dimensional structural diagram at point A;

[0031] Figure 4 yes Figure 3 Cross-sectional three-dimensional structural diagram;

[0032] Figure 5 This is a schematic diagram of a preferred embodiment of the present invention;

[0033] In the diagram: 1. Working end; 11. Blade; 111. First blade; 112. Second blade; 12. Elastic element; 13. Fixing plate; 14. Pulley; 15. Connecting line; 151. First connecting line; 152. Second connecting line; 16. Ultrasonic disinfection probe; 17. Water outlet; 171. Water storage tank; 18. Camera; 181. Lighting lamp; 19. Suction tube; 2. Joint; 21. Upper joint; 22. Lower joint; 23. First self-locking component; 24. Second self-locking component; 3. Handle end; 301. Central control system; 31. Blade adjustment button; 32. Water volume adjustment button; 33. Lighting intensity button; 34. Suction tube adjustment button; 35. Photo emergency stop button; 36. Display screen; 37. Buzzer. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention. The technical solution adopted by the present invention is: a multifunctional ultrasonic dental elevator for the extraction of maxillary third molar root fracture, comprising: a working end 1, a joint 2 connected to the working end 1, and a handle end 3 connected to the joint 2. The present invention integrates multiple functions into one, avoiding the need to change different instruments during tooth extraction, greatly saving tooth extraction time, and also improving the efficiency and scope of use of the dental elevator.

[0039] Figure 2 This is a cross-sectional perspective view of the handle end 3 of the present invention; the handle end 3 includes a central control system 301, and a blade adjustment button 31, a water volume adjustment button 32, a lighting intensity button 33, a suction tube adjustment button 34 and a photo emergency stop button 35 connected to the central control system 301; a display screen 36 is also provided at the bottom of the handle end 3, and the display screen 36 is connected to the central control system 301 through a communication unit.

[0040] This invention features a handle end 3. Through a central control system 301 and connected to it are buttons 31 (blade adjustment), 32 (water volume adjustment), 33 (light intensity), 34 (suction tube adjustment), and 35 (photo-taking emergency stop). These controls allow for convenient adjustment of the working end 1's width, water flow, lighting intensity, suction force and length of the suction tube 19, as well as real-time video recording. The combined functionality significantly increases the efficiency of the dental elevator. A display screen 36 at the bottom of the handle end 3 automatically transmits data via Bluetooth to a mobile phone or computer, and can also capture photos of the patient's field of vision for communication and patient education. Furthermore, the handle end 3 is ergonomically designed, with a skin-friendly surface material on the exterior of the working end 1 to reduce the risk of soft tissue injury during operation and improve the safety of the dental elevator. A test button on the side of the handle end 3 controls the electrical vitality testing function.

[0041] Figure 3 yes Figure 1 Overall three-dimensional structural diagram at point A; Figure 4 yes Figure 3A cross-sectional three-dimensional structural diagram is provided. The working end 1 includes a blade 11 slidably mounted on the working end 1, several elastic elements 12 connected to the blade 11, several fixed plates 13 connected to the elastic elements 12, and a pulley 14 connected to the bottom of the blade 11. The blade 11 and the pulley 14 are connected by several connecting lines 15. An ultrasonic disinfection probe 16 is provided on the working end 1. The blade 11 includes a first blade 111 and a second blade 112. The connecting lines 15 include a first connecting line 151 and a second connecting line 152. The first blade 111 is connected to the pulley 14 through the first connecting line 151, and the second blade 112 is connected to the pulley 14 through the second connecting line 152 in the opposite direction to the first connecting line 151. A micro motor is connected to the pulley 14. The micro motor is located inside the handle end 3 and is electrically connected to the blade adjustment button 31.

[0042] A short press of the blade adjustment button 31 allows switching between the working mode and the ultrasonic disinfection mode. In the working mode, the energy is concentrated in the vertical direction of the tip, which facilitates the insertion of the working end 1 into the working gap between the tooth root section and the alveolar bone, while preventing lateral energy from damaging the alveolar bone. In the ultrasonic disinfection mode, the power and effect of ultrasonic disinfection of the alveolar socket after the operation are achieved. A long press of the blade adjustment button 31 allows adjustment of the width of the wedge-shaped blade 11 at the working end 1 by adjusting the micro motor.

[0043] The present invention adjusts the width of the wedge head by setting pulley 14 and elastic element 12, so that the working end 1 can be wedged into the working gap between the tooth root cross section and the alveolar bone. It can adapt to different working gap widths and at the same time prevent lateral energy from damaging the alveolar bone. It solves the problem in the prior art that the working end 1 is not conducive to entering the gap between the tooth root and the pulp bone due to a certain thickness, expands the application range of the dental elevator, and improves the extraction efficiency of the dental elevator.

[0044] The joint 2 includes an upper joint 21 and a lower joint 22 connected to the working end 1; a first self-locking component 23 is provided between the upper joint 21 and the lower joint 22, and a second self-locking component 24 is provided between the lower joint 22 and the handle section; the upper joint 21 and the lower joint 22 can be rotated and adjusted at an angle of 45-360 degrees; the present invention can be rotated and adjusted to the required angle according to different needs through the first self-locking component 23 and the second self-locking component 24, ensuring that the dental elevator can be used for working needs at different angles; and a weak suction unit is provided between the upper joint 21 and the lower joint 22, which can reduce the risk of aerosol infection during operation and improve the safety and hygiene of the dental elevator during use.

[0045] In this invention, a camera 18 is installed inside the working end 1, and an illumination lamp 181 is installed inside the camera 18. The camera 18 and the illumination lamp 181 are connected to the central control system 301. The camera 18 is electrically connected to the photo-taking emergency stop button 35, and the illumination lamp 181 is electrically connected to the illumination intensity button 33. Pressing the illumination intensity button 33 adjusts the illumination intensity, which is divided into low, medium, and high levels. The outer surfaces of the camera 18 and the illumination lamp 181 are hydrophobic. A short press of the photo-taking emergency stop button 35 captures and displays an instant photo. A short press followed by a double press activates the emergency stop unit, stopping the entire machine immediately. A long press of the photo-taking emergency stop button 35, combined with software, identifies the color difference between the fractured root surface and the alveolar bone in real time, displaying the working gap position at the boundary of the color difference, facilitating the operator to accurately place the working end 1 in the working gap.

[0046] In this invention, the central control system 301 is equipped with a Bluetooth unit, which is connected to the display screen 36 via a communication unit. The Bluetooth unit is also connected to a control terminal. The display screen 36 is connected to a color recognition unit and a prompting unit, and the central control system 301 is connected to a processing unit. The color recognition unit is used to identify the color difference between the fractured root surface and the alveolar bone, generating color image data. The processing unit is used to transmit the color image data to the control terminal via the Bluetooth unit for software processing to generate gap data. The prompting unit is used to display the working gap position on the display screen 36. This invention, by combining software to identify the color difference between the fractured root surface and the alveolar bone in real time and displaying the working gap position at the boundary of the color difference, facilitates the operator to accurately place the working end 1 in the working gap, improving the operational accuracy and safety when using a dental elevator.

[0047] In this invention, a water outlet 17 is provided on the working end 1, and a water storage tank is connected to the water outlet 17. The water storage tank is located inside the handle end 3. An electric water pump is installed inside the water storage tank, and the electric water pump is electrically connected to the water volume adjustment button 32. When the water volume adjustment button 32 is pressed, the water volume can be adjusted by activating the electric water pump. When the electric water pump is not activated, the water volume is slightly smaller, and the water outlet direction is directly facing the working end 1. When the electric water pump is activated, it is in rinsing mode, the water volume is slightly larger, and the water outlet direction is parallel to the working end 1, which facilitates vertical rinsing of the alveolar socket.

[0048] In this invention, a suction tube 19 is provided on the working end 1, and a negative pressure suction device is connected to the suction tube 19. The negative pressure suction device is located inside the handle end 3. A length adjustment unit is connected to the bottom of the suction tube 19, and the length adjustment unit is electrically connected to the suction tube adjustment button 34. When the suction tube adjustment button 34 is pressed briefly, the length of the suction tube 19 can be adjusted. The length of the suction tube 19 is divided into a storage length, a working end 1 1 / 2 length, and a working end 1 length. When the suction tube adjustment button 34 is pressed for a long time, the intensity of the negative pressure suction device can be adjusted. The intensity of the negative pressure suction device is divided into two levels: weak suction and strong suction.

[0049] In this invention, the blade 11 is equipped with a sensing unit for detecting contact with soft tissue; a buzzer 37 is installed inside the handle end 3, connected to the working end 1. The buzzer 37 contains an alarm unit and an emergency stop unit. The alarm unit provides an audible alarm upon contact with soft tissue, and the emergency stop unit stops the working end 1 immediately to protect the soft tissue. This invention can promptly alarm and stop operation upon sensing contact with soft tissue, avoiding patient injury due to improper operation, improving the effectiveness of the dental elevator, and ensuring its safety.

[0050] Figure 5 This is a schematic diagram of a preferred embodiment of the present invention. When using the present invention, firstly, the width of the wedge-shaped blade 11 is adjusted by pressing and holding the blade adjustment button 31 to adapt to different working gaps. Then, the joint 2 is adjusted to ensure an appropriate operating angle. Next, the water outlet button is adjusted: State 1 is a slightly smaller water flow with the water outlet direction directly facing the working end 1; State 2 is a rinsing state with a slightly larger water flow with the water outlet direction parallel to the working end 1, facilitating vertical rinsing of the alveolar socket. Then, the lighting intensity button 33 is adjusted to adjust the lighting intensity, which is divided into low, medium, and high levels. Next, the suction tube adjustment button 34 is pressed briefly to adjust the length of the suction tube 19, and the suction tube adjustment button 34 is pressed and held to adjust the negative pressure suction intensity to extract the dislocated root fragment. Then, the photo emergency stop button 35 is pressed briefly to capture an instant photo and display the real-time image from the camera 18. The photo emergency stop button 35 is pressed and held and held in conjunction with the software to identify the color difference between the root fragment surface and the alveolar bone in real time, displaying the working gap position at the boundary of the color difference. Finally, the blade adjustment button 31 is pressed briefly to adjust to the ultrasonic disinfection mode, achieving the ultrasonic disinfection power and effect of the alveolar socket after the procedure.

[0051] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multifunctional ultrasonic dental elevator specifically designed for the extraction of fractured maxillary third molars, characterized in that, include: The working end, the joint connected to the working end, and the handle end connected to the joint; The working end includes: a blade slidably disposed on the working end, a plurality of elastic elements connected to the blade, a plurality of fixed plates connected to the elastic elements, and a pulley connected to the bottom of the blade; the blade and the pulley are connected by a plurality of connecting lines; an ultrasonic disinfection probe is disposed on the working end; The joint includes an upper joint and a lower joint connected to the working end; a first self-locking component is provided between the upper joint and the lower joint, and a second self-locking component is provided between the lower joint and the handle section; the rotation adjustment angle of the upper joint and the lower joint is 45-360 degrees. The handle end includes: a central control system, and blade adjustment buttons, water volume adjustment buttons, lighting intensity buttons, suction tube adjustment buttons, and photo emergency stop buttons connected to the central control system; the bottom of the handle end is also provided with a display screen, which is connected to the central control system through a communication unit.

2. The multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The blade includes a first blade and a second blade, and the connecting line includes a first connecting line and a second connecting line. The first blade is connected to the pulley via the first connecting line, and the second blade is connected to the pulley via the second connecting line in the opposite direction to the first connecting line. The pulley is connected to a micro motor. The micro motor is located inside the handle end and is electrically connected to the blade adjustment button.

3. The multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The central control system is equipped with a Bluetooth unit, which is connected to the display screen via a communication unit and is connected to a control terminal.

4. The multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 3, characterized in that: The display screen is connected to a color recognition unit and a prompting unit, and the central control system is connected to a processing unit. The color recognition unit is used to identify the color difference between the fractured root surface and the alveolar bone and generate color image data. The processing unit is used to transmit the color image data to the control terminal via the Bluetooth unit to cooperate with the software to generate gap data. The prompting unit is used to display the working gap position on the display screen.

5. A multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The working end is provided with a water outlet, which is connected to a water storage tank, which is located inside the handle end; an electric water pump is installed inside the water storage tank, and the electric water pump is electrically connected to the water volume adjustment button.

6. The multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The working end is equipped with a camera, and the camera is equipped with a light. The camera and the light are connected to the central control system. The camera is electrically connected to the photo-taking emergency stop button, and the light is electrically connected to the lighting intensity button.

7. A multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The working end is provided with a suction tube, which is connected to a negative pressure suction device. The negative pressure suction device is located inside the handle end. The bottom of the suction tube is connected to a length adjustment unit, which is electrically connected to the suction tube adjustment button.

8. The multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The blade is equipped with a sensing unit for sensing contact with soft tissue; the handle end is equipped with a buzzer connected to the working end, and the buzzer is equipped with an alarm unit and an emergency stop unit. The alarm unit is used to sound an alarm when contact with soft tissue, and the emergency stop unit is used to stop the working end in an emergency to protect the soft tissue.

9. A multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: A weak suction unit is provided between the upper joint and the lower joint to reduce aerosol infection during operation.

10. A multifunctional ultrasonic dental elevator for extracting fractured maxillary third molars according to claim 1, characterized in that: The handle end is designed in an ergonomic shape, and the working end is covered with a skin-friendly surface material.

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