A disinfection device for root canal preparation after treatment

Abstract

The application discloses a disinfection device for root canal preparation after treatment, which comprises a mobile phone, a side wall of a working end of the mobile phone is provided with a fixed groove group, the fixed groove group comprises two first fixed grooves and one second fixed groove, the two first fixed grooves are vertically arranged on the left side and the right side of the working end, the second fixed groove is transversely arranged at the front end of the working end, and the left and right ends of the second fixed groove are respectively communicated with the two first fixed grooves; the disinfection device further comprises a connecting assembly, the connecting assembly comprises a connecting frame, the connecting frame is arranged in the fixed groove group, and the connecting frame is provided with a locking piece for fixing the connecting assembly in the fixed groove group; a lampshade is arranged at the bottom of the connecting frame, a light source is arranged in the lampshade, and a light guide working tip is detachably arranged at the bottom of the light source and the inside of the lampshade. The device reduces the volume of the irradiation component and can quickly adjust the light of the irradiation component into the root canal.

Description

Technical Field

[0001] This application relates to the field of oral treatment technology, and in particular to a disinfection device after root canal preparation treatment. Background Technology

[0002] Root canal preparation is a step in root canal treatment, which includes opening the pulp chamber, removing the pulp, measuring the working length of the root canal, and root canal enlargement. The purpose of root canal enlargement is to clean out infected tissue from the root canal. Currently, after root canal enlargement, ultrasonic cleaning is generally used.

[0003] After root canal cleaning, disinfection is necessary, and light-based disinfection is a relatively efficient method. Currently, oral red light therapy devices are mainly used for disinfection in clinical practice. This device utilizes the light wavelength and power emitted by specific LEDs, and when used in conjunction with a light guide head, it inhibits oral microorganisms, thereby preventing lesions. However, current oral red light therapy devices have a problem when used for disinfection inside root canals: the irradiation component cannot be quickly adjusted to the inside of the root canal. This is because the irradiation component in existing devices is relatively large, making it difficult to move and position flexibly within the limited operating space of the oral cavity. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a disinfection device after root canal preparation treatment, which reduces the size of the irradiation component and can quickly adjust the light of the irradiation component to the root canal.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] A disinfection device for root canal preparation treatment includes a handpiece. The side wall of the working end of the handpiece is provided with a fixing groove group. The fixing groove group includes two first fixing grooves and one second fixing groove. The two first fixing grooves are vertically arranged on the left and right sides of the working end, and the second fixing groove is horizontally arranged at the front end of the working end, and its left and right ends are respectively connected to the two first fixing grooves.

[0007] It also includes a connecting component, which includes a connecting frame disposed within the fixing slot group. The connecting frame is provided with a locking member for fixing the connecting component within the fixing slot group. A lampshade is provided at the bottom of the connecting frame, and a light source is provided inside the lampshade. A light guide tip is detachably installed at the bottom of the light source and inside the lampshade.

[0008] By setting up a fixed slot assembly and combining it with a connecting component that has a light source, the overall size of the light-emitting component is reduced, and the disinfection light source can be flexibly and stably guided and positioned in complex root canals during intraoral operation.

[0009] To facilitate the installation of the connecting components, in some embodiments, the upper end of the first fixing groove terminates at the upper-middle part of the side of the working end, and the lower end extends to and through the bottom edge of the side of the working end.

[0010] To achieve a stable connection with the working end of the mobile phone, in some embodiments, the connection frame includes two slide rods and two arc-shaped tracks. The two slide rods are respectively engaged in the two first fixing slots; the two arc-shaped tracks are spaced apart in the vertical direction on the front side of the slide rods, and their two ends are respectively fixedly connected to the corresponding sides of the two slide rods.

[0011] Further extending the above scheme, grooves are respectively opened on the opposite end faces of the two arc-shaped tracks.

[0012] Further expanding upon the above scheme, the locking component includes a slider and a screw; the slider is slidably disposed between the grooves of the two arc-shaped tracks, and a screw hole is provided in the middle of the slider, with the screw screwed into the screw hole.

[0013] In some embodiments, the inner wall of the lampshade is provided with a retaining ring to prevent the light source from falling off.

[0014] In some embodiments, the top of the light source is provided with an elastic member, the top surface of which abuts against the top surface inside the lampshade. The elastic force of the elastic member ensures that the bottom surface of the light source remains in contact with the top surface of the retaining ring.

[0015] In order to quickly install or replace the light guide tip, in some embodiments, an opening is symmetrically opened on the left and right sides of the bottom surface of the lampshade, and a slot is provided on the side wall of each opening.

[0016] Further expanding upon the above scheme, the top left and right sides of the light guide tip are respectively provided with snap-fit ​​blocks, and the two snap-fit ​​blocks are respectively snapped into the slots on the corresponding opening sides.

[0017] In some embodiments, the light guide tip has a structure that gradually tapers from top to bottom. The tip is narrow at the end, allowing it to penetrate deeply into narrow root canals and conduct light to the deeper parts of the root canal.

[0018] Compared to existing technologies, this application achieves at least the following beneficial effects: This disinfection device is significantly smaller in size compared to traditional oral red light therapy devices. It can be quickly installed on the working end of the handpiece after root canal cleaning, allowing the light-guiding tip to penetrate deep into the root canal for disinfection. Because the overall size of the connecting components and the handpiece working end is small, it can be flexibly moved and positioned within the limited operating space of the oral cavity. Attached Figure Description

[0019] One or more embodiments of this application will now be described by way of example only with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a perspective view of a disinfection device after root canal preparation treatment according to one embodiment of this application;

[0021] Figure 2 for Figure 1 Side view of the disinfection device in the embodiment;

[0022] Figure 3 for Figure 2 A partial schematic diagram at point A in the embodiment;

[0023] Figure 4 for Figure 2 A partial schematic diagram at point B in the embodiment;

[0024] Figure 5 This is a three-dimensional schematic diagram of a mobile phone in the disinfection device of this application;

[0025] Figure 6 An exploded view of the connecting components in the disinfection device of this application;

[0026] Figure 7 for Figure 6 A partial schematic diagram at point C in the embodiment;

[0027] Figure 8 for Figure 6 A partial schematic diagram at point D in the embodiment.

[0028] The numbers on the map are:

[0029] 1. Mobile phone; 11. Working end; 12. Second fixing slot; 13. First fixing slot;

[0030] 2. Connecting frame; 21. Slide rod; 22. Arc track; 221. Slide groove; 23. Slider; 24. Screw;

[0031] 3. Lampshade; 31. Opening; 32. Slot;

[0032] 4. Light guide tip; 41. Connecting block;

[0033] 5. Electrical wires;

[0034] 6. Magnetic blocks;

[0035] 7. Elastic components;

[0036] 8. Light source. Detailed Implementation

[0037] The present application will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0038] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limiting the scope of protection of this application.

[0039] The inventors addressed the shortcomings of existing technologies, such as the inability to quickly adjust the light from the irradiation component into the root canal. After careful analysis, they discovered that the main reason for this problem is that the LED light source module of common oral red light therapy devices is relatively large. When the large irradiation component enters the posterior tooth region, especially the molar root canal, it is prone to collision with adjacent teeth, opposing teeth, or soft tissues, making it difficult for dentists to freely adjust the angle and depth, thus failing to accurately guide the light into curved or narrow root canals.

[0040] Based on the above analysis, the inventors designed a disinfection device for root canal preparation treatment.

[0041] like Figure 1-8 As shown, in at least one embodiment of a disinfection device for root canal preparation treatment according to this application, a dental handpiece 1 for root canal enlargement is included. The working end 11 of the handpiece 1 (i.e., the end where the drill bit is installed) has a set of fixing grooves on its side wall. The fixing groove set includes two first fixing grooves 13 and one second fixing groove 12. The inner walls of the two first fixing grooves 13 are semi-circular arc-shaped and are vertically arranged on the left and right sides of the working end 11. The inner wall of the second fixing groove 12 is also semi-circular arc-shaped and is arranged in a transverse arc shape at the front end of the working end 11. The left and right ends of the second fixing groove 12 are respectively connected to the upper middle side walls of the two first fixing grooves 13.

[0042] This disinfection device also includes a connecting assembly, which comprises a connecting frame 2 installed within the first fixing slot 13 of the fixing assembly. A locking element is installed within the connecting frame 2 to secure the connecting assembly within the fixing assembly, preventing it from falling downwards. A cover-shaped lampshade 3 is fixedly connected to the bottom of the connecting frame 2, and a light source 8 is installed within the lampshade 3. The light source 8 is a red-blue variable light source (e.g., a 3535RGB LED bead, equipped with a control chip to control the operation of this model of LED bead), where the wavelength range of the red light is 810nm-980nm, with intermediate values ​​of 940nm and 974nm, and the effective power for root canal disinfection is 0.5-2W; the wavelength range of the blue light is 440nm-450nm, with an intermediate value of 445nm, and the effective power for root canal disinfection is 0.5-0.6W. A light guide tip 4 is detachably installed at the bottom of the light source 8 and inside the lamp cover 3. The light guide tip 4 is used to focus the light source and can be made of materials such as bisphenol A carbonate (also known as PC) or epoxy resin.

[0043] The fixing slot assembly is used to install the connecting frame 2 and prevent it from detaching from the working end 11 of the mobile phone 1. The upper end of the first fixing slot 13 of the fixing slot assembly terminates at the upper-middle part of the side of the working end 11, and the lower end extends to and passes through the bottom edge of the side of the working end 11. This vertical through structure ensures that the connecting assembly can be smoothly installed and slidably snapped into place from the bottom of the working end 11 of the mobile phone 1.

[0044] The connecting frame 2 is used to quickly connect the light source 8 and the light guide tip 4 to the working end 11. The connecting frame 2 is made of conventional medical alloy material and includes two slide rods 21 and two arc-shaped tracks 22. The two slide rods 21 are cylindrical and vertically engaged within two first fixing slots 13; the two arc-shaped tracks 22 are rectangular and pressed into an arc shape. The two arc-shaped tracks 22 are spaced apart along the vertical direction on the front side of the slide rods 21, and both ends of the arc-shaped tracks 22 are fixedly connected to the corresponding sides of the two slide rods 21 (e.g., by spot welding).

[0045] When installing the connecting frame 2, first remove the drill bit from the working end 11 of the mobile phone 1. Then, holding the lower middle part of the two sliding rods 21, insert them from bottom to top into the two first fixing grooves 13 until the top surface of the sliding rod 21 contacts the top surface inside the first fixing groove 13, thus completing the connection between the connecting frame 2 and the working end 11. At this time, the second fixing groove 12 is located between the two arc-shaped tracks 22 and exposed.

[0046] In order to fix the connecting frame 2, grooves 221 are respectively provided on the top surface of the arc track 22 located below the second fixing groove 12 and on the bottom surface of the arc track 22 located above the second fixing groove 12 along the length direction of the arc track 22.

[0047] The locking element can move within the slide groove 221. The locking element includes a slider 23 and a screw 24. The slider 23 is a rectangular metal block with an arc shape in its top view. The top and bottom surfaces of the slider 23 are respectively fitted with clearance within the slide groove 221 of the arc-shaped track 22, allowing the slider 23 to slide along the slide groove 221. A screw hole is provided at the center of the front end of the slider 23, and the screw 24 is screwed into the screw hole.

[0048] The first fixing groove 13 is deeper than the second fixing groove 12 to increase the contact area between the slide rod 21 and the first fixing groove 13. After the connecting frame 2 is installed on the working end 11, the sliding block 23 is slid to the middle position of the arc-shaped track 22, and then the screw 24 is tightened. The threaded end of the screw 24 presses against the second fixing groove 12, and the tightening action of the threaded end prevents the connecting frame 2 from falling off the working end 11. At the same time, the contact between the slide rod 21 and the first fixing groove 13 also restricts the forward movement of the connecting frame 2.

[0049] In addition, such as Figure 3 As shown, a metal ball that matches the second fixing groove 12 can be welded to the end face of the threaded end of the screw 24 to prevent the threads of the screw 24 from scratching the inner surface of the second fixing groove 12 when the screw 24 is rotated.

[0050] The lampshade 3 is used to mount the light source 8. The lampshade 3 body is a circular cap-shaped structure made of conventional medical alloy, and its top is fixedly connected to the bottom of two sliding rods 21 (e.g., by spot welding). A retaining ring is fixedly welded to the inner wall of the lampshade 3 to prevent the light source 8 from falling off. Specifically, the light source 8 uses 3535 RGB LEDs, with the LED portion passing downwards through the retaining ring, and the bottom surface of the LED base contacting the top surface of the retaining ring, thereby preventing the light source 8 from falling out of the lampshade 3.

[0051] like Figure 2 and Figure 4 As shown, the light source 8 is connected to an external power supply wire 5. A rectangular magnetic block 6 is fitted onto the wire 5. The side of the magnetic block 6 has a through hole through which the power supply wire 5 passes. The magnetic block 6 can move along the wire 5. After the connecting frame 2 is installed, the magnetic block 6 can be attached to the bottom of the handle of the mobile phone 1 near the working end 11 to fix the wire 5 and prevent the wire 5 from contacting the patient's mouth.

[0052] The top of the light source 8 is equipped with an elastic element 7 for loosening the light source 8. Specifically, the elastic element 7 can be a rubber washer or a spring. If it is a rubber washer, its outer diameter matches the inner diameter of the lampshade 3, and its thickness ensures that its top and bottom surfaces contact the inner top surface of the lampshade 3 and the top surface of the base of the light source 8, respectively. If it is a spring, its diameter is smaller than the diameter of the base of the light source 8, the spring wire diameter can be 0.8mm, the number of turns is 2, and the pitch matches the gap between the lampshade 3 and the base of the light source 8. Through the elastic compression of the elastic element 7, the bottom surface of the base of the light source 8 is kept in close contact with the top surface of the inner retaining ring of the lampshade 3, thereby preventing loosening.

[0053] The lampshade 3 has two symmetrical openings 31 on its bottom left and right sides. The sidewalls of the two openings 31 have grooves 32 circumferentially (clockwise or counterclockwise). The bottom surface of the LED in the light source 8 is lower than the top surface of the opening 31. The top of the light guide tip 4 can extend into the lampshade 3. A rectangular plastic retaining block 41 is fused to the left and right sides of its top, and the two retaining blocks 41 respectively engage with the grooves 32 on the sides of the corresponding openings 31. During installation, the light guide tip 4 is pushed upwards. Because the bottom surface of the LED in the light source 8 is lower than the top surface of the opening 31, force needs to be applied to push the light source 8 upwards, causing the elastic element 7 to deform and the light source 8 to move upwards. After the retaining blocks 41 are aligned with the entrance of the grooves 32, the light guide tip 4 is rotated to engage the two retaining blocks 41 with their respective grooves 32, and then released. At this time, the reaction force of the elastic element 7 will press down on the light source 8, causing the lamp bead part to press against the light guide tip 4, thereby restricting the rotation of the light guide tip 4 and preventing the locking block 41 from coming out of the slot 32.

[0054] The structure of the light guide tip 4 gradually tapers from top to bottom, forming a needle shape, so as to concentrate and conduct light to the bottom of the light guide tip 4 through the principle of reflection. The degree of taper in the middle and lower part of the light guide tip 4 is such that it can reach the bottom of the root canal.

[0055] In addition, the light-guiding tip 4 can be replaced with an existing transparent optical fiber. The diameter of this optical fiber should be such that it can reach deep into the bottom of the root canal. In use, the light source 8 is aimed at the end of the optical fiber to illuminate it.

[0056] This device achieves initial positioning and connection by vertically sliding the two cylindrical slide rods 21 on the connecting frame 2 into the first fixing groove 13 of the working end 11 of the dental handpiece 1. The locking component slides within the slide groove 221 of the arc track 22 to the corresponding position of the second fixing groove 12. After tightening the screw 24, its threaded end (or welded metal ball) presses against the inner wall of the second fixing groove 12, using friction and structural limitation to prevent the connecting frame 2 from falling downward. At the same time, the contact surface between the slide rods 21 and the first fixing groove 13 restricts back-and-forth movement, thereby completing the stable installation of the entire device on the dental handpiece 1.

[0057] The device uses a variable red and blue LED light source to adjust different light modes. For example, the near-red light mode is used for deep tissues and has anti-inflammatory and healing-promoting effects; the near-blue light mode mainly targets superficial flora and has a strong bactericidal effect.

[0058] The method of using this device is as follows:

[0059] First, align the top of the light guide tip 4 with the bottom opening 31 of the lampshade 3 and push it upwards, while simultaneously pressing down on the light source 8 to slightly move it upwards. When the locking block 41 of the light guide tip 4 aligns with the entrance of the slot 32 on the side of the opening 31 of the lampshade 3, rotate the light guide tip 4 (clockwise or counterclockwise, depending on the direction of the slot 32) to make the locking block 41 engage with the slot 32. Release the pushing force, and the elastic element 7 will spring back and push the light source 8 downwards, making the lamp bead part tightly adhere to the top of the light guide tip 4, locking its position.

[0060] Next, remove the drill bit from the working end 11 of the dental handpiece 1; holding the lower middle part of the two sliding rods 21 of the connecting frame 2 (or the lampshade 3), insert them upwards from the bottom of the working end 11 of the dental handpiece 1, so that the sliding rods 21 slide into the two first fixing grooves 13 until the top surface of the sliding rods 21 contacts the top of the fixing groove. Confirm that the connecting frame 2 is installed in place, at which point the second fixing groove 12 is exposed between the two arc-shaped tracks 22. Push the slider 23 of the locking member along the sliding groove 221 of the arc-shaped track 22 to the middle of the arc-shaped track 22 (corresponding to the position of the second fixing groove 12). Use your thumb and forefinger to tighten the screw 24 on the slider 23, using enough force to make the threaded end of the screw 24 (or the welded metal ball) tightly press against the inner wall of the second fixing groove 12 to prevent the connecting frame 2 from loosening and falling off.

[0061] Subsequently, the light source 8 and its power cord 5 are pre-connected to the external controller and power supply. The magnetic block 6 on the sliding wire 5 is used to attach it to the bottom of the dental handpiece 1 handle, preventing the wire 5 from dangling. The controller allows selection of red light mode, blue light mode, or a combination mode, and setting parameters (such as power and irradiation time).

[0062] Finally, insert the working end 11 of the dental handpiece 1 into the patient's mouth, and slowly insert the tip of the light guide tip 4 into the root canal to the target depth. Turn on the light source and keep the light guide tip 4 stably irradiating within the root canal. The irradiation time is set according to clinical needs. After irradiation, the light guide tip 4 can be moved to adjust the irradiation site to ensure full coverage of the root canal.

[0063] In addition, photosensitizers commonly used in dentistry can be used for disinfection during the irradiation process.

[0064] After disinfection, press down and rotate the light guide tip 4 in the opposite direction to disengage the locking block 41 from the slot 32, and remove the light guide tip 4 (which can be replaced or disinfected).

[0065] When disassembling the connecting frame 2, first loosen the locking screw 24, slide the slider 23 away from the second fixing groove 12, and then slide it down to remove the entire connecting frame 2.

[0066] If a transparent optical fiber is used instead of the light guide tip 4, the top end of the optical fiber (which has the same structure as the light guide tip 4) is aligned with the opening 31 of the lampshade 3 and fixed, and the other end is inserted into the root canal. The light source can then shine from the end of the optical fiber.

[0067] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the protection scope of this application.

Claims

1. A disinfection device for root canal preparation treatment, characterized in that, The device includes a mobile phone, and the side wall of the working end of the mobile phone is provided with a fixing groove group. The fixing groove group includes two first fixing grooves and one second fixing groove. The two first fixing grooves are arranged vertically on the left and right sides of the working end, and the second fixing groove is arranged horizontally at the front end of the working end, and its left and right ends are respectively connected to the two first fixing grooves. It also includes a connecting component, which includes a connecting frame disposed within the fixing slot group. The connecting frame is provided with a locking member for fixing the connecting component within the fixing slot group. A lampshade is provided at the bottom of the connecting frame, and a light source is provided inside the lampshade. A light guide tip is detachably installed at the bottom of the light source and inside the lampshade.

2. The apparatus according to claim 1, characterized in that, The upper end of the first fixing groove terminates at the upper middle part of the side of the working end, and the lower end extends to and penetrates the bottom edge of the side of the working end.

3. The apparatus according to claim 2, characterized in that, The connecting frame includes two sliding rods and two arc-shaped tracks. The two sliding rods are respectively engaged in the two first fixing slots. The two arc-shaped tracks are spaced apart in the vertical direction on the front side of the sliding rods, and their two ends are respectively fixedly connected to the corresponding sides of the two sliding rods.

4. The apparatus according to claim 3, characterized in that, The two arc-shaped tracks have grooves on their opposite end faces.

5. The apparatus according to claim 4, characterized in that, The locking component includes a slider and a screw; the slider is slidably disposed between the grooves of the two arc-shaped tracks, and a screw hole is provided in the middle of the slider, and the screw is screwed into the screw hole.

6. The apparatus according to claim 1, characterized in that, The inner wall of the lampshade is provided with a retaining ring to prevent the light source from falling off.

7. The apparatus according to claim 1, characterized in that, The top of the light source is provided with an elastic element, and the top surface of the elastic element abuts against the top surface inside the lampshade.

8. The apparatus according to claim 1, characterized in that, The lampshade has an opening symmetrically opened on the left and right sides of its bottom surface, and a slot is provided on the side wall of each opening.

9. The apparatus according to claim 8, characterized in that, The top left and right sides of the light guide tip are respectively provided with locking blocks, and the two locking blocks are respectively locked into the corresponding slots on the opening side.

10. The apparatus according to claim 1, characterized in that, The structure of the light guide tip gradually tapers from top to bottom.

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