Ultrasonic oscillation washing work tip and ultrasonic oscillation washing equipment

Abstract

The invention relates to the field of ultrasonic oscillation washing, in particular to an ultrasonic oscillation washing work tip and ultrasonic oscillation washing equipment which are used for oscillation washing of root canals. The ultrasonic oscillation cleaning work tip comprises a main body part. The protruding parts are arranged in the length direction of the main body part at intervals, and a piston flow groove is formed between every two adjacent protruding parts. The main body component can vibrate in the root canal under the ultrasonic effect, so that the protruding component pushes fluid in the root canal and forms piston flow at the piston flow groove. Piston flow is formed through the piston flow groove, so that liquid in the root canal can be stirred, and substances in the root canal can be cleaned. Meanwhile, the formed piston flow can improve the dissolving capacity of cleaning liquid in the root canal, so that the cleaning liquid can better dissolve organic substances in the root canal, and the piston flow also enables the cleaning liquid to flow to some root tip areas in the root canal. By cleaning the root tip area, the interior of the root canal is highly cleaned, and stimulation to the root tip area is reduced.

Description

Technical Field

[0001] This patent relates to the field of ultrasonic washing, and in particular to an ultrasonic washing working tip and an ultrasonic washing device. Background Art

[0002] At present, the washing and cleaning needles use the acoustic streaming effect and cavitation effect generated by ultrasonic vibration to clean the residues and dentin debris in the root canal. This technology uses the high-frequency vibration of ultrasound to form a stable one-way fluid circulation in the root canal, thereby improving the cleaning effect. It is mainly used to remove bacteria, biofilms and smear layers in the root canal. These microorganisms and organic substances are the main causes of root canal treatment failure. The washing and cleaning needles can effectively remove these substances that are difficult to remove by mechanical preparation or chemical drugs. Compared with traditional root canal irrigation methods, ultrasonic washing technology can more effectively remove organic debris and bacterial biofilms in the root canal system, especially in complex root canal anatomical structures. In addition, ultrasonic washing can also enhance the permeability of the washing solution and improve the cleaning effect of the root canal wall.

[0003] Therefore, in order to make the file working tip of the flushing file produce a better flushing effect, a surrounding spiral protrusion is currently set on the outer surface of the working tip to protect the inside of the root canal and cause the flushing liquid to tumble through the vibration of the auger, thereby increasing the cleaning range and effect of the cleaning liquid. However, the flow rate of the cleaning liquid in the root canal remains unchanged, and some important areas in the root canal, especially the area with more impurities accumulated at 3-5mm at the root apex of the root canal, are difficult to be effectively cleaned. Summary of the invention

[0004] In order to solve or at least partially solve the above technical problems, this patent provides an ultrasonic washing working tip and an ultrasonic washing device.

[0005] The present invention provides an ultrasonic flushing tip for flushing a root canal. The ultrasonic flushing tip comprises: a main body. A plurality of raised parts are arranged at intervals along the length direction of the main body, and a piston flow groove is formed between two adjacent raised parts. The main body can vibrate in the root canal under the action of ultrasound, so that the raised parts push the fluid in the root canal and form a piston flow at the piston flow groove.

[0006] Preferably, the intersection line of the two side walls of the piston flow groove and the cross section of the main body component in the radial direction is a straight line.

[0007] Preferably, the angle between the side wall of the piston flow groove and the radial line of the main body component is between 30 degrees and 60 degrees.

[0008] Preferably, the raised part is arranged around the main body part.

[0009] Preferably, the diameter of the cross section of the main body part perpendicular to the length direction gradually increases along the length direction of the main body part from the end extending into the root canal. The diameter of the protruding part surrounding the main body part gradually increases along the length direction of the main body part from the end extending into the root canal.

[0010] Preferably, a diameter of a cross section of the main body component perpendicular to the length direction increases by 0.02 mm for every 1 mm interval along the length direction of the main body component.

[0011] Preferably, the two side walls of the piston flow channel intersect at the bottom of the piston flow channel.

[0012] Preferably, a plurality of notches are provided on the protruding component to connect two adjacent piston flow grooves.

[0013] Preferably, the notches of adjacent protruding components are staggered.

[0014] Preferably, the main body part comprises: a rod-shaped part and a cylindrical part. The rod-shaped part is connected to the ultrasonic washing device. The cylindrical part is sleeved on the rod-shaped part, and the protruding part is arranged on the outer surface of the cylindrical part.

[0015] Preferably, the cylindrical component can be pushed by an external force to rotate freely on the rod-shaped component.

[0016] Preferably, the tubular component can be pushed by external force and reciprocate along the axial direction of the rod-shaped component. The rod-shaped component is provided with a clamping part, and the tubular component is provided with a limiting part, and the clamping part and the limiting part cooperate with each other to make the rod-shaped component reciprocate within a preset distance.

[0017] An ultrasonic washing device comprises an ultrasonic vibration device and the ultrasonic washing working tip arranged on the ultrasonic vibration device.

[0018] Compared with the prior art, the present invention provides a plurality of raised parts on the outer surface of the main part of the working tip, and piston flow grooves are formed between the plurality of raised parts. When the working tip vibrates inside the root canal, the piston flow grooves can form a piston flow inside the root canal, and the piston flow can make the cleaning liquid in the root canal more evenly distributed and flow inside the root canal, thereby achieving a more comprehensive cleaning of the inside of the root canal and improving the cleaning effect inside the root canal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of this patent, the following is a brief introduction to the relevant drawings. It can be understood that the drawings described below are only used to illustrate some implementations of this patent, and ordinary technicians in this field can also obtain many other technical features and connection relationships not mentioned in this article based on these drawings.

[0020] Figure 1It is a three-dimensional schematic diagram of an ultrasonic washing working tip in an embodiment of the present patent;

[0021] Figure 2 It is a three-dimensional schematic diagram of an ultrasonic washing working tip in an embodiment of the present patent;

[0022] Figure 3 This is a schematic diagram of the structure of an ultrasonic washing working tip in an implementation mode of the present patent;

[0023] Figure 4 It is a three-dimensional schematic diagram of an ultrasonic washing working tip in an embodiment of the present patent;

[0024] Figure 5 It is a three-dimensional schematic diagram of an ultrasonic washing working tip in an embodiment of the present patent;

[0025] Figure 6 A schematic diagram of the structure of the rod-shaped component of the embodiment of the present invention;

[0026] Figure 7 It is a three-dimensional schematic diagram of an ultrasonic washing working tip in an embodiment of the present patent;

[0027] Figure 8 It is a three-dimensional schematic diagram of an ultrasonic washing working tip in another embodiment of the present patent;

[0028] Fig. 9 This is a schematic diagram of an ultrasonic washing tip extending into a root canal to form a piston flow in an implementation mode of the present patent;

[0029] Fig.10 This is a schematic diagram of the internal structure of an ultrasonic washing working tip according to an implementation method of this patent.

[0030] Description of reference numerals:

[0031] 1. Main body; 11. Rod-shaped part; 111. Pointed part; 12. Tubular part; 13. First limiting part; 14. Second limiting part; 2. Protruding part; 21. Notch; 23. Piston flow groove; 25. Limiting part; 3. Root canal. DETAILED DESCRIPTION

[0032] The patent is described in detail below in conjunction with the accompanying drawings.

[0033] At present, during the process of root canal treatment, a cleaning file is required to clean the inside of the root canal. Specifically, before cleaning, a cleaning solution is first injected into the root canal, and then a cleaning file needle connected to an ultrasonic cleaning device is inserted into the root canal, and the ultrasonic cleaning device is started to vibrate the cleaning file needle to stir the cleaning solution in the root canal.

[0034] Specifically, the file needle includes a needle body, most of which is conical and can be inserted into the root canal, and one end of the needle body is a pointed tip, and a flexible auger is often provided outside the circumference of the needle body. The needle body and the flexible auger are connected by bonding, and when the needle body is vibrated by ultrasound, the flexible auger can also vibrate, increasing the tumbling of the cleaning and flushing liquid inside the root canal, making it easier to clean, and when the flexible auger is pulled out, it can also remove larger impurities inside to prevent the impurities from accumulating inside the root canal.

[0035] However, the inventor of this patent found that the flexible auger has limited stirring force on the cleaning liquid during use, which is insufficient to evenly distribute the cleaning liquid in the root canal, and also unable to make the cleaning liquid reach every corner of the root canal to achieve complete cleaning of the root canal.

[0036] In view of this, the first embodiment of this patent proposes an ultrasonic washing working tip to solve the above technical problems.

[0037] First embodiment

[0038] like Figure 1 , Figure 2 , Figure 7 , Fig. 9 The first embodiment of the present invention provides an ultrasonic flushing tip for flushing a root canal 3. The ultrasonic flushing tip comprises: a main body 1. A plurality of raised parts 2 are arranged at intervals along the length direction of the main body 1, and a piston flow groove 23 is formed between two adjacent raised parts 2. The main body 1 can vibrate in the root canal 3 under the action of ultrasound, so that the raised parts 2 push the fluid in the root canal 3 and form a piston flow at the piston flow groove 23.

[0039] This embodiment also provides an ultrasonic washing device, including: an ultrasonic vibration device and the above-mentioned ultrasonic washing working tip arranged on the ultrasonic vibration device.

[0040] In the embodiment of the present invention, when the ultrasonic washing device cleans the root canal 3, the ultrasonic washing tip can vibrate and stir the cleaning liquid in the root canal 3 to form a piston flow. The flow of the piston flow formed by the cleaning liquid can flush the root canal 3, which improves the effect and quality of flushing the root canal 3 compared to the prior art. Under this premise, the output efficiency conversion rate of the ultrasonic washing device is further improved, and the vibration energy output can be more effectively converted into flushing the root canal 3.

[0041] Specifically, when the flushing tip is used, after the flushing tip is inserted into the root canal 3, the main body 1 vibrates under the drive of the ultrasonic flushing device, and the main body 1 will swing left and right within a certain range. However, since the tip section of the main body 1 is far away from the ultrasonic flushing device, the movement trajectory of the tip section of the flushing tip during the actual shaking process will form an elliptical line around an unfixed axis. While the main body 1 is vibrating, the raised part 2 set on the main body 1 also vibrates at the same time. At this time, the piston flow groove 23 formed by the raised part 2 will stir the cleaning liquid in the root canal 3. The cleaning liquid first moves toward the side wall of the root canal 3 under the action of the piston flow groove 23. After the cleaning liquid contacts the side wall of the root canal 3, it rebounds and moves toward the piston flow groove 23, and gradually oscillates back and forth to form a piston flow.

[0042] Since the space in the root canal 3 is very narrow, the cleaning inside the root canal 3 needs to be flushed with a cleaning solution. If a conventional working tip is used directly, the tip section will draw an elliptical line around an unfixed axis in the root canal 3. Although this will also stir the cleaning solution in the root canal 3, it is impossible to flush a specific position in the root canal 3 in a directed manner.

[0043] Compared with such traditional structures, the present patent uses a piston flow groove 23 between the raised parts 2 to form a powerful piston flow, which can make the cleaning liquid injected into the root canal 3 flow in one dimension, that is, maintain a uniform and continuous flow state in the flow direction of the cleaning liquid, and will not cause mixing. Through the piston flow, the cleaning liquid can form a uniform and regular reciprocating flow in the root canal 3, thereby repeatedly flushing the corresponding position in the root canal 3 in a directional and high-intensity manner. Through the doctor's operation, every corner inside the root canal 3 can be taken into account, and all-round effective cleaning of the inside of the root canal 3 can be achieved.

[0044] In addition, reference Figure 7 We can intuitively see that there are multiple raised parts 2 distributed along the length direction on the outer surface of the main part 1. These raised parts 2 can form multiple piston flow grooves 23. Multiple piston flow grooves 23 can also be distributed on the outer surface of the main part 1 along the length direction of the main part 1. When the main part 1 vibrates, each piston flow groove 23 can generate a large amount of piston flow, and the piston flow will continue to be generated at the same position with the vibration. The multiple piston flow grooves 23 set in this patent ensure the continuity of the piston flow, while increasing the area that can be continuously cleaned in the root canal 3, thereby further improving the cleaning effect in the root canal 3.

[0045] And if Figure 7 As shown, the intersection line of the two side walls of the piston flow groove 23 and the cross section of the main body part 1 in the radial direction is a straight line.

[0046] It is not difficult to see that the two side walls of the piston flow groove 23 can be set to a smooth shape. When the piston flow groove 23 stirs the cleaning liquid in the root canal 3, the cleaning liquid can smoothly flow through the side walls of the piston flow groove 23. And because the side walls of the piston flow groove 23 are very smooth, it is not easy to cause obstruction to the cleaning liquid during the flow of the cleaning liquid, and the cleaning effect of the inside of the root canal 3 can be ensured.

[0047] Further, the angle between the side wall of the piston flow groove 23 and the radial line of the main part 1 should be between 30 degrees and 60 degrees. When the angle between the side wall of the piston flow groove 23 and the radial line of the main part 1 is too large, the cross section of the piston flow groove 23 will gradually approach a plane, and the piston flow effect produced by the piston flow groove 23 will become less obvious. At the same time, when the angle between the side wall of the piston flow groove 23 and the radial line of the main part 1 is too small, the distance between the tops of the two adjacent protrusions will become very close, and the distribution of the protrusions 2 on the surface of the main part 1 will become dense, so that the cleaning liquid in the root canal 3 will be difficult to flow into the piston flow groove 23. Therefore, the piston flow between 30 degrees and 60 degrees can ensure the efficient formation of the piston flow and the cleaning effect of the piston flow. More specifically, different root canals 3 have different shapes. In order to adapt to root canals 3 of different shapes, the angle between the side wall of the piston flow groove 23 and the radial line of the main part 1 can be selected to be different sizes. Different angles can work in different root canal 3 environments and effectively flush the inner wall of the root canal 3 .

[0048] In particular, along the body of the main part 1 toward the direction of the pointed part 111 of the main part 1, the angle between the side wall of the piston flow groove 23 and the radial line of the main part 1 can be gradually increased from 30 degrees, gradually increased to 60 degrees, and then gradually reduced to 30 degrees. At this time, by adjusting the insertion depth of the main part 1, the piston flow grooves 23 with different angles can be adapted to different positions in the root canal 3 to clean different positions in the root canal 3. In addition, the outer surface of the pointed part 111 is also provided with a protruding part 2. The pointed part 111 is conical, and the diameter difference of the cross section of the pointed part 111 at intervals of 1 mm along the length direction is 0.02 mm, and the pointed part 111 is a 0.2 taper. The diameter difference of the cross section of most root canals 3 at intervals of 1 mm along the length direction is 0.04 mm, and the taper of the root canal 3 is 0.4 taper.

[0049] And if Figure 4As shown, the raised part 2 is arranged around the main part 1. When the raised part 2 is arranged around the main part 1, when the main part 1 extends into the root canal 3 for vibration, the piston flow can be formed around the main part 1 through the piston flow groove 23 formed by the raised part 2. At this time, the piston flow can completely surround the main part 1, and multiple piston flows can be formed simultaneously through the vibration of the main part 1. Multiple piston flows act on the cleaning liquid in the root canal 3 at the same time, which can produce periodic strong oscillations. Compared with a single piston flow, the piston flow formed by the surrounding raised part can increase the frequency of the cleaning liquid flushing the inside of the root canal 3 once per unit time. In an embodiment of the present invention, the raised part 2 is an annular part, which is sleeved on the outside of the main part 1. The raised part 2 is a circular ring, and the cross-section of the ring body is a triangle. Compared with the superposition of multiple single protrusions, the annular raised part 2 has a stronger structural rigidity, which ensures the cleaning work in the root canal 3.

[0050] In addition, the design of the annular raised part 2 not only improves the cleaning efficiency, but also reduces the amount of cleaning fluid, thereby reducing operating costs and environmental impact. By optimizing the shape and material of the raised part 2, its durability and performance can be further improved.

[0051] refer to Figure 3 As shown, the diameter of the cross section of the main part 1 perpendicular to the length direction gradually increases from the end extending into the root canal along the length direction of the main part 1. The diameter of the protruding part 2 arranged around the outside of the main part 1 gradually increases from the end extending into the root canal 3 along the length direction of the main part 1. The diameter of the cross section of the main part 1 perpendicular to the length direction increases by 0.02 mm for every 1 mm interval along the length direction of the main part 1.

[0052] The diameter of the root canal 3 gradually decreases as it extends from the opening to the inside. When the flushing tip is inserted into the root canal 3, the distance between the inner wall of the root canal near the opening and the flushing tip is far, which affects the formation of the piston flow. Therefore, the diameter of the cross section of the main part 1 gradually increases from the insertion end. When the flushing tip is completely inserted into the root canal 3, in the cross section perpendicular to the length direction of the main part 1, the distance between the inner wall of the root canal 3 and the main part 1 is within the distance for generating the piston flow, so as to ensure that the cleaning liquid can oscillate between the main part 1 and the root canal 3. Since the diameter of the cross section of the main part 1 perpendicular to the length direction increases by 0.02 mm for every 1 mm interval along the length direction of the main part 1, the taper of the main part 1 is 0.2, which can correspond to the 0.4 taper of the conventional root canal 3 to meet the flushing requirements.

[0053] Further, if Figure 7As shown, the two side walls of the piston flow groove 23 intersect at the bottom of the piston flow groove 23. Since the two side walls of the piston flow groove 23 intersect at the bottom of the groove, the cross section of the piston flow groove 23 is V-shaped. Therefore, when the piston flow groove 23 stirs the cleaning liquid in the root canal 3, the two side walls of the piston flow groove 23 can jointly squeeze the cleaning liquid passing through. The V-shaped cross section further reduces the distance between the two side walls, which can apply greater pressure to the cleaning liquid passing through, thereby making the piston flow generated in the cleaning liquid flow faster, thereby improving the cleaning effect of the cleaning liquid in the root canal 3.

[0054] At the same time, the design of the V-shaped piston flow groove 23 not only improves the cleaning efficiency, but also reduces the amount of cleaning liquid used, thereby reducing operating costs and environmental impact.

[0055] In addition, a plurality of notches 21 are provided on the protruding part 2 to connect two adjacent piston flow grooves 23 .

[0056] When the main part 1 forms a piston flow, the main part 1 may vibrate in its radial or axial direction. At this time, the protrusion will also generate a piston flow in the radial or axial direction of the main part 1, and the generated piston flows may merge. There is an angle between the flow direction of the piston flow and the axial direction of the main part 1, which can effectively flush the inner wall of the root canal 3 from multiple angles. The cleaning liquid in the root canal 3 is squeezed and shaken. When the protrusion acts on the cleaning liquid, it may generate a large resistance. At this time, the notch 21 provided can reduce the resistance between the protrusion and the cleaning liquid during vibration. Specifically, if Figure 3 As shown, the raised part 2 is an annular structure, and a plurality of raised parts 2 are sequentially sleeved on the main part 1 along the length direction of the main part 1. A notch 21 is provided on the annular raised part 2, and the resistance of the main part 1 from the cleaning liquid during vibration is reduced by providing a plurality of notches 21. In this way, the kinetic energy received by the main part 1 can be more effectively converted into piston flow, thereby improving the conversion rate between cleaning and energy of the working tip.

[0057] Furthermore, if Figure 2 The notches 21 of adjacent protrusion components 2 are shown to be staggered.

[0058] When the piston flow is formed, the flow velocity on the cross section perpendicular to the flow direction is the same. Therefore, the cleaning fluid in each piston flow groove 23 needs to maintain a relatively independent flow velocity. The notches 21 of adjacent raised parts 2 are staggered, and at this time, the notches 21 of each raised part 2 will not be located on the same straight line along the length direction of the main part 1. When the main part 1 vibrates, the cleaning fluid in each piston flow groove 23 will not flow directly through the notch 21 to the adjacent piston flow groove 23, thereby avoiding the decrease in the pressure of the piston flow generated by a single piston flow groove 23 due to the outflow of the cleaning fluid along the notch 21. Therefore, the staggered notches 21 can ensure that the flushing pressure of the piston flow is increased, thereby improving the flushing effect of the root canal 3.

[0059] Second embodiment

[0060] In the first embodiment, the notches 21 of adjacent protruding parts 2 are staggered. This arrangement can make the piston flow effect generated by each piston flow groove 23 better, so as to improve the uniformity of the flow velocity on the cross section perpendicular to the flow direction of the piston flow.

[0061] However, in actual use, even if this setting is not made, the technical purpose of this patent can still be basically met.

[0062] In view of this, refer to Figure 8 As shown, in the second embodiment of the present invention, an ultrasonic washing working tip is proposed, which is substantially the same as the above-mentioned embodiment, except that the notches 21 of the adjacent protruding parts 2 of the ultrasonic washing working tip are evenly located on the same straight line along the length direction of the main part 1. The protruding parts 2 using this method are more convenient to process. For example, when the protruding parts 2 are as shown in FIG. Figure 8 When the shape is annular, after the plurality of protruding parts 2 are installed, the notches 21 on the plurality of protruding parts 2 can be opened at the same time. Although the fluidity of the cleaning liquid between each piston flow groove 23 is enhanced in the ultrasonic washing working tip made in this way, the manufacturing difficulty is greatly reduced and the cost is lower. In addition, compared with the first embodiment, although the pressure of the generated piston flow is reduced, the efficiency of the piston flow in removing the dirt in the root canal 3 is in turn improved, which also has its value.

[0063] Third embodiment

[0064] In the first embodiment and the second embodiment, an ultrasonic washing tip is disclosed. It is not difficult to deduce from the working principle of the ultrasonic washing tip that the ultrasonic washing tip connected thereto is vibrated by the ultrasonic washing device. When the ultrasonic washing tip vibrates, the piston flow grooves 23 formed by the raised parts 2 distributed on the main part 1 can form a piston flow under vibration.

[0065] However, since the working tip of the ultrasonic cleaning tip inserted into the root canal 3 is far away from the main body of the ultrasonic cleaning device providing vibration, the movement trajectory of the working tip cannot be effectively fixed, thereby affecting the formation of the piston flow and the cleaning effect.

[0066] In view of this, if Figure 2 , Figure 5 In the third embodiment of the present invention, an ultrasonic washing tip is proposed. As an improvement over the above-mentioned embodiment, the main body 1 of the ultrasonic washing tip includes: a rod-shaped part 11 and a cylindrical part 12. The rod-shaped part 11 is connected to the ultrasonic washing device. The cylindrical part 12 is sleeved on the rod-shaped part 11, and the protruding part 2 is arranged on the outer surface of the cylindrical part 12.

[0067] Since the cylindrical component 12 is sleeved on the outside of the rod-shaped component 11, the axis of the cylindrical component 12 coincides with that of the rod-shaped component 11. At this time, the cylindrical component 12 can rotate coaxially relative to the rod-shaped component 11, and the raised component 2 on the cylindrical component 12 can also rotate therewith. Similarly, since the cylindrical component 12 is sleeved on the rod-shaped component 11, it can also slide along the length direction of the rod-shaped component 11. At this time, the raised component 2 arranged on the surface of the cylindrical component 12 can also slide along the length direction of the rod-shaped component 11 with the cylindrical component 12, and generate a piston flow in the root canal 3 to achieve cleaning of the root canal 3. Through the cooperation between the cylindrical component 12 and the rod-shaped component 11, the main component 1 entering the root canal 3 can obtain a relatively fixed movement mode, and the piston flow formed by the piston flow groove 23 will be more stable, thereby achieving a better cleaning effect in the root canal 3.

[0068] More specifically, the cylindrical component 12 can be pushed by an external force to rotate freely on the rod-shaped component 11. A locking member is provided on the rod-shaped component 11, and a limiting portion 25 is provided on the inner side wall of the cylindrical component 12. When the cylindrical component 12 is sleeved on the rod-shaped component 11, the locking member will abut against the limiting portion 25 to limit the sliding of the cylindrical component 12 along the length direction of the rod-shaped component 11. When the ultrasonic washing device is working, the rod-shaped component 11 will be driven and vibrate. At this time, driven by the vibration of the rod-shaped component 11, the cylindrical component 12 sleeved on the rod-shaped component 11 will also rotate together. The piston flow groove 23 formed by the raised component 2 on the cylindrical component 12 can generate a piston flow while rotating, and the generated piston flow drives the cleaning fluid in the root canal 3 to flow to achieve a cleaning effect. In addition, in other embodiments, the cylindrical component 12 can be pushed by an external force and reciprocate along the axial direction of the rod-shaped component 11. As Figure 4 As shown, a locking portion is provided on the rod-shaped component 11, and a limiting portion 25 is provided on the tubular component 12. The locking portion and the limiting portion 25 cooperate with each other to enable the rod-shaped component 11 to reciprocate within a preset distance.

[0069] Specifically, refer to Figure 6 , Fig.10 The clamping part includes a first stopper 13 and a second stopper 14. The first stopper 13 and the second stopper 14 are arranged at intervals along the length direction of the rod-shaped part 11, and the projections of the first stopper 13 and the second stopper 14 on the cross section perpendicular to the length direction of the rod-shaped body overlap. A stopper 25 is arranged on the inner wall of the cylindrical part 12, and when the cylindrical part 12 reciprocates along the length direction of the rod-shaped body, the stopper 25 reciprocates between the first stopper 13 and the second stopper 14. The first stopper 13 and the second stopper 14 limit the movement of the stopper 25 to limit the reciprocating distance of the cylindrical part 12. Specifically, the first stopper 13 and the second stopper 14 are both a sheet structure, and the stopper 25 is also a block structure. The block structure will move with the cylindrical part 12, and when the block structure abuts against the sheet structure, the block structure is stopped by the stopper of the sheet structure, thereby limiting the movement of the cylindrical part 12. The distance of the block structure reciprocating in the two sheet structures is the range of the reciprocating movement of the cylindrical component 12 along the rod-shaped component 11. In addition, the distance between the first limiter 13 and the second limiter 14 can be made and adjusted according to actual use requirements, so as to change the reciprocating amplitude of the cylindrical component 12 and apply it to different root canal 3 environments.

[0070] When the ultrasonic vibration device starts to work, the rod-shaped component 11 will be driven and vibrate, and under the vibration of the rod-shaped component 11, the cylindrical component 12 will also vibrate. At this time, the vibrating cylindrical component 12 will stir the cleaning liquid in the root canal 3 and form a piston flow. The piston flow formed at this time will push the cylindrical component 12 to reciprocate along the rod-shaped component 11, and then the limiting part 25 of the cylindrical component 12 will move between the first limiting part 13 and the second limiting part 14. By limiting the movement range of the limiting part 25, the movement of the cylindrical component 12 is limited, so as to avoid the cylindrical component 12 slipping out of the root canal 3 due to the excessive movement range of the cylindrical component 12, thereby affecting the cleaning inside the root canal 3.

[0071] Furthermore, when using ultrasonic cleaning working tip, the working tip extends into the root canal 3 along the length direction of the rod-shaped part 11 and along the root canal 3. When the raised part 2 on the surface of the cylindrical part 12 vibrates along the length direction of the rod-shaped part 11, the cleaning liquid in the root canal 3 will generate a piston flow along the radial or axial direction of the rod-shaped part 11, and the generated piston flow will merge. At this time, there is an angle between the flow direction of the piston flow and the axial direction of the main part 1, which can perform multi-angle and powerful flushing on the inner wall of the root canal 3. In addition, the extension direction of the cylindrical part 12 is highly consistent with the length direction of the root canal 3, and the raised section of the raised part 2 can also face the side wall of the root canal 3, so as to remove impurities in the root canal 3 from the root canal 3 while cleaning the root canal 3, thereby improving the cleaning effect of the root canal 3. Compared with directly setting the protruding part 2 outside the main part 1, it is necessary to manually control the up and down movement of the main part 1 to produce the merged piston flow. In this embodiment, since the cylindrical part 12 can reciprocate along the rod-shaped part 11, the operator's work efficiency can be improved.

[0072] Finally, it should be noted that ordinary technicians in this field can understand that in order to make readers better understand this patent, the implementation methods of this patent propose many technical details. However, even without these technical details and various changes and modifications based on the above-mentioned implementation methods, the technical solutions claimed for protection by the claims of this patent can be basically realized. Therefore, in practical applications, various changes can be made to the above-mentioned implementation methods in form and details without departing from the spirit and scope of this patent.

Claims

1. An ultrasonic cleaning tip for cleaning a root canal; characterized in that: The ultrasonic cleaning working tip comprises: Main body parts; A plurality of raised parts are arranged at intervals along the length direction of the main body part, and a piston flow groove is formed between two adjacent raised parts; The main body component can vibrate in the root canal under the action of ultrasound, so that the protruding component pushes the fluid in the root canal and forms a piston flow at the piston flow groove.

2. The ultrasonic washing tip according to claim 1, characterized in that: The intersection line of the two side walls of the piston flow groove and the cross section of the main body component in the radial direction is a straight line.

3. The ultrasonic washing tip according to claim 2, characterized in that: The angle between the side wall of the piston flow groove and the radial line of the main body component is between 30 degrees and 60 degrees.

4. The ultrasonic washing tip according to claim 2, characterized in that: The protruding part is arranged around the main body part.

5. The ultrasonic washing tip according to claim 4, characterized in that: The diameter of the cross section of the main body component perpendicular to the length direction gradually increases along the length direction of the main body component from the end extending into the root canal; The diameter of the protruding part arranged around the outside of the main part gradually increases along the length direction of the main part starting from the end extending into the root canal.

6. The ultrasonic washing tip according to claim 5, characterized in that: The diameter of the cross section of the main body component perpendicular to the length direction increases by 0.02 mm for every 1 mm interval along the length direction of the main body component.

7. The ultrasonic washing tip according to claim 2, characterized in that: The two side walls of the piston flow channel intersect at the bottom of the piston flow channel.

8. The ultrasonic washing tip according to claim 1, characterized in that: The protruding part is provided with a plurality of notches to connect two adjacent piston flow grooves.

9. The ultrasonic washing tip according to claim 8, characterized in that: The notches of adjacent protruding parts are staggered.

10. The ultrasonic washing tip according to any one of claims 1 to 9, characterized in that: The main body component comprises: A rod-shaped component connected to the ultrasonic washing device; A cylindrical component, sleeved on the rod-shaped component; The protruding member is provided on the outer surface of the cylindrical member.

11. The ultrasonic washing tip according to claim 10, characterized in that: The cylindrical member can be pushed by an external force to freely rotate on the rod-shaped member.

12. The ultrasonic washing tip according to claim 10, characterized in that: The cylindrical component can be pushed by an external force and reciprocate along the axial direction of the rod-shaped component; The rod-shaped component is provided with a locking portion, and the tubular component is provided with a limiting portion. The locking portion and the limiting portion cooperate with each other to enable the rod-shaped component to perform the reciprocating motion within a preset distance.

13. An ultrasonic washing device, characterized in that: include: An ultrasonic vibration device and an ultrasonic washing tip according to any one of claims 1 to 12 arranged on the ultrasonic vibration device.

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