Water and air double-pass ultrasonic dental cleaning handle

Abstract

The utility model discloses a kind of water-gas double-pass ultrasonic dental cleaning handles, it is related to medical instrument technical field, the water-gas double-pass ultrasonic dental cleaning handle includes main handle, one end of main handle is fixedly connected with handle upper cover, handle upper cover is equipped with stop piece away from main handle;Fixed upper shell side away from the one end of stop piece of handle upper cover is equipped with side shell, and side shell is fixedly connected with fixed upper shell;It is the space of fixed upper shell and side shell for receiving handle upper cover;First movable shell is movably connected with the one end of fixed upper shell away from handle upper cover, and the side of this first movable shell is fixedly connected with second movable shell, and it is the space for receiving stop piece between first movable shell and second movable shell;Tube hole can fix water-gas mixing pipe, so that water-gas mixing pipe can transport water mist generated by water-gas mixing to working tip, and the formed mist water flow has wide coverage and sufficient impact force, and under the condition of small water flow, mist water flow can also penetrate into narrow dead angle such as tooth gap and gingival groove.

Description

Technical Field

[0001] This utility model specifically relates to the field of medical device technology, and specifically to a water-air dual-channel ultrasonic dental cleaning handle. Background Technology

[0002] Ultrasonic scalers are oral care devices that use ultrasonic vibrations to clean teeth. Their core advantage is that they effectively remove plaque and tartar while being gentle on tooth enamel. Ultrasonic vibrations can break down tartar and plaque, but they also produce tiny debris. To prevent this debris from remaining in the gaps between teeth and the gingival sulcus and causing secondary adhesion, it is necessary to use water or air to wash it away.

[0003] Chinese patent application CN 2740154 Y discloses a novel ultrasonic dental scaler handle comprising: a handle housing, a transducer, a working tip, a front cover, a connector, an annular conductive sheet, a rubber sleeve, a handle tail cable, a water flow control valve, and a power potentiometer. The transducer is installed inside the handle housing, and the stop groove of the transducer tail seat is inserted into the protrusion of the handle housing. A retaining ring is used to position the amplitude transformer between the transducer and the handle housing, and a sealing ring and filler are used to seal the transducer, effectively preventing water from seeping into it. A rubber sleeve is installed at the front of the handle housing, and there are two annular conductive sheets between the handle housing and the rubber sleeve.

[0004] The ultrasonic dental scaler in the aforementioned patent has a working tip in its handle and uses water flow in conjunction with the working tip to clean teeth. However, when cleaning teeth, the water flow is columnar or straight, which has limited penetration into narrow corners such as between teeth, gingival sulcus, and adjacent surfaces of teeth. In order to ensure cleaning power, a certain water flow intensity needs to be maintained. However, the straight water flow can easily enter the throat or nasal cavity, causing choking. In addition, the water flow has poor lubrication effect, which makes the direct friction between the working tip and the teeth and gums stronger, which will make the discomfort more prominent for people with sensitive teeth. Utility Model Content

[0005] The purpose of this invention is to provide a water-air dual-channel ultrasonic dental cleaning handle that uses a water-air mixing tube to transport the mixed water and air to the working tip. The mist-like water flow has a wide coverage and sufficient impact force. While the water flow rate is relatively small, it can penetrate into narrow corners such as between teeth and gingival sulcus. In addition, the water and air can form a buffer layer between the working tip and the teeth to reduce the friction on the teeth. This invention aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A water-air dual-channel ultrasonic dental scaler handle, including

[0008] The main handle is designed for easy gripping by medical staff. One end of the main handle is fixedly connected to a handle cover, and the handle cover has a stopper located away from the main handle.

[0009] The fixed upper shell has a side shell on the side of the fixed upper shell located away from the handle cover of the stop piece, and the side shell is fixedly connected to the fixed upper shell; the space between the fixed upper shell and the side shell is for storing the handle cover.

[0010] The fixed upper shell is movably connected to a first movable shell at one end away from the handle cover. One side of the first movable shell is fixedly connected to a second movable shell, and there is a space between the first and second movable shells for storing the stop piece.

[0011] The first movable shell has a through hole at the end away from the fixed upper shell for the working tip of the ultrasonic transducer to pass through; the first movable shell has a pipe hole at the end away from the fixed upper shell for the water-air mixing pipe to pass through and for fixing the water-air mixing pipe; the second movable shell has a circular through hole at the position corresponding to the stop, and the inner wall of the circular through hole is integrally provided with an elastic clip.

[0012] The stop includes a grooved disc, on one side of which are evenly distributed multiple slots in a ring, and the elastic clip engages with the slots; on the side of the grooved disc away from the slots, a fixing member is integrally and coaxially provided, which is located inside the snap-fit ​​housing.

[0013] As a further technical solution of this utility model, the outer shell is cylindrical, and the fixing parts are coaxially distributed with the outer shell; a central shaft is coaxially fixedly connected inside the outer shell.

[0014] As a further technical solution of this utility model, the cross-section of the central shaft is D-shaped, and the end of the central shaft away from the inner wall of the outer shell is inserted into the fixing member, and the middle of the fixing member is provided with an insertion hole for the central shaft.

[0015] As a further technical solution of this utility model, the snap-fit ​​outer shell is located in the cavity formed after the fixed upper shell and the second movable shell are docked, and the outer side of the snap-fit ​​outer shell is uniformly provided with a plurality of elongated grooves; the inner walls of the fixed upper shell and the second movable shell near the snap-fit ​​outer shell are uniformly provided with a plurality of positioning posts, and the plurality of positioning posts are respectively located in the plurality of grooves of the snap-fit ​​outer shell.

[0016] As a further technical solution of this utility model, the second movable shell is integrally provided with a positioning cylinder at the end away from the stop member. The positioning cylinder is located on the inner side of the end of the first movable shell away from the fixed upper shell and is coaxially arranged with the first movable shell. The positioning cylinder is provided with a through hole in the middle for the working tip of the ultrasonic transducer to pass through.

[0017] As a further technical solution of this utility model, the end of the first movable shell near the fixed upper shell is a large semicircle and is sleeved on the outside of the circular end of the fixed upper shell; the bidirectional movement range of the first movable shell is 0°-45°.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, the tube hole can fix the water-air mixing tube, so that the water-air mixing tube can transfer the water mist generated by the water-air mixture to the working tip. The resulting mist water flow has a wide coverage and sufficient impact force. Even with a small water flow rate, the mist water flow can penetrate into narrow corners such as between teeth and gingival sulcus. At the same time, the water mist forms a buffer layer between the working tip and the teeth, which greatly reduces the direct friction between the working tip and the teeth and gums, avoiding the strong discomfort caused by teeth cleaning for people with sensitive teeth. Moreover, because the impact force of the mist water flow is dispersed, it is not easy to enter the throat or nasal cavity, reducing the occurrence of choking.

[0020] 2. The snap-fit ​​structure of the elastic clip and the slotted disc, as well as the cooperation between the positioning post and the snap-fit ​​outer shell groove, make the connection between the components tight and the positioning accurate, ensuring the stability and reliability of the entire handle during use; the bidirectional movement range of the first and second movable shells is 0°-45°, which can meet the teeth cleaning needs at different angles and improve the flexibility and comprehensiveness of cleaning. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This utility model Figure 1 A breakdown diagram.

[0023] Figure 3 This utility model Figure 2 Another perspective illustration.

[0024] Figure 4 This utility model Figure 2 A partial structural diagram.

[0025] Figure 5 This utility model Figure 3 A partial structural diagram.

[0026] Figure 6 This utility model Figure 1 A magnified view of a portion of the image.

[0027] Figure 7 This is a disassembled schematic diagram of the stop component of this utility model.

[0028] In the diagram: 1-Main handle, 2-End cap, 3-Handle top cover, 4-Fixed upper shell, 5-Side shell, 6-First movable shell, 7-Second movable shell, 8-Stop, 9-Positioning cylinder, 10-Elastic clip, 11-Positioning post, 12-Pipe hole;

[0029] 81-Snap-fit ​​housing, 82-Central shaft, 83-Fixing component, 84-Slotted disc. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-7 In this embodiment of the utility model, a water-air dual-channel ultrasonic dental cleaning handle includes...

[0032] The main handle 1 is convenient for medical staff to hold. One end of the main handle 1 is fixedly connected to the handle cover 3. The handle cover 3 is provided with a stop 8 away from the main handle 1.

[0033] The fixed upper shell 4 has a side shell 5 located on the side of the fixed upper shell 4 away from the stop member 8 and the side shell 5 is fixedly connected to the fixed upper shell 4; the space between the fixed upper shell 4 and the side shell 5 is for storing the handle cover 3.

[0034] The upper shell 4 is fixedly connected to a first movable shell 6 at one end away from the handle cover 3. One side of the first movable shell 6 is fixedly connected to a second movable shell 7, and there is a space between the first movable shell 6 and the second movable shell 7 for storing the stop 8.

[0035] The first movable shell 6 has a through hole at the end away from the fixed upper shell 4 for the working tip of the ultrasonic transducer to pass through; the first movable shell 6 has a pipe hole 12 at the end away from the fixed upper shell 4 for the water-air mixing pipe to pass through and for fixing the water-air mixing pipe; the second movable shell 7 has a circular through hole at the position corresponding to the stop member 8, and the inner wall of the circular through hole is integrally provided with an elastic clip 10.

[0036] The stop member 8 includes a grooved disc 84, on one side of which a plurality of slots are evenly distributed in a ring, and the elastic locking member 10 engages with the slots; a fixing member 83 is integrally and coaxially provided on the side of the grooved disc 84 away from the slots, and the fixing member 83 is located inside the locking housing 81.

[0037] The outer shell 81 is cylindrical, and the fixing member 83 is coaxially distributed with the outer shell 81; a central shaft 82 is coaxially fixedly connected inside the outer shell 81; the cross-section of the central shaft 82 is D-shaped, and the end of the central shaft 82 away from the inner wall of the outer shell 81 is inserted into the fixing member 83, and the middle of the fixing member 83 is provided with an insertion hole for the central shaft 82.

[0038] By adopting the above technical solution, the tube hole 12 can fix the water-air mixing tube, so that the water-air mixing tube can transport the water mist generated by the water-air mixing to the working tip. The resulting mist water flow has a wide coverage and sufficient impact force. Even with a small water flow rate, the mist water flow can penetrate into narrow dead corners such as tooth gaps and gingival sulci. At the same time, the water mist forms a buffer layer between the working tip and the teeth, which greatly reduces the direct friction between the working tip and the teeth and gums, avoiding the strong discomfort caused by teeth cleaning for people with sensitive teeth. Moreover, because the impact force of the mist water flow is dispersed, it is not easy to enter the throat or nasal cavity, reducing the occurrence of choking.

[0039] It should be noted that, based on the design of the handle shell of the ultrasonic dental scaler in this application, its internal structure is not part of the structure in this application, nor is it an improvement made by this application. Therefore, its principle and specific installation method will not be described in detail.

[0040] The mixing of air and water in medical ultrasonic dental scalers is not achieved through a mixing valve. Instead, it is primarily accomplished using a dedicated structure built into the device, such as a built-in air-water mixing seat / pipe. Some special models also incorporate auxiliary components to optimize the mixing effect. The specific mixing method and structural principles are as follows:

[0041] Core mixing structure: Water-air mixing seat and mixing pipe working together

[0042] This is the most common gas-liquid mixing structure in medical ultrasonic scalers, designed to ensure thorough mixing of gas and water. A water-air mixing base is installed inside the handle casing. The rear of this base connects to the air inlet and water inlet pipes, while the front connects to the water-air mixing tube, with the front end of the mixing tube directly connected to the scaler's working head. For example, some models insert the front end of the water inlet pipe into the rear end of the water-air mixing tube, creating an annular gap between the outer surface of the water pipe and the inner surface of the mixing tube. Gas enters this annular air passage through the holes inside the mixing base. When water flows out of the water inlet pipe and gas is ejected from the annular air passage, their flow directions are aligned, preventing gas from compressing the water flow. Ultimately, they mix thoroughly at the outlet to form a uniform water mist, which is then precisely delivered to the cleaning area.

[0043] Special Model: Ozone Water Generator with Auxiliary Gas-Liquid Fusion

[0044] Some medical dental scalers with sterilization functions use ozone water generators to achieve the fusion of gas and water. These devices connect to a clean water source and use their own technology to generate ozone water, where gaseous ozone has already dissolved into the water. The controller then regulates parameters such as water pressure and flow rate of the ozone-containing mixture before delivering it to the scaler pen. While this method doesn't involve real-time synchronous mixing of gas and water, it essentially achieves gas-liquid combination through specialized components, meeting the dual needs of sterilization and cleaning during dental cleaning.

[0045] Operational coordination logic

[0046] In terms of operation, doctors can adjust the air pressure and water flow rate separately by turning the knob on the main unit, and then step on the foot switch to trigger the simultaneous opening of the air and water circuits. The air and water flow will be delivered to the mixing structure along their respective independent pipelines, and after mixing, they will be sprayed out from the working head in the form of water mist. The whole process does not require manual control of the mixing valve. By simply adjusting the parameters, it can adapt to the water mist concentration requirements of different scenarios such as subgingival curettage and implant cleaning.

[0047] In this embodiment, the snap-fit ​​outer shell 81 is located in the cavity formed after the fixed upper shell 4 and the second movable shell 7 are docked, and the outer side of the snap-fit ​​outer shell 81 is uniformly provided with a plurality of elongated grooves; the inner walls of the fixed upper shell 4 and the second movable shell 7 near the snap-fit ​​outer shell 81 are uniformly provided with a plurality of positioning posts 11, and the plurality of positioning posts 11 are respectively located in a plurality of grooves of the snap-fit ​​outer shell 81.

[0048] As a further explanation of the above embodiments, the fixed upper shell 4, together with the second movable shell 7, can wrap around the snap-fit ​​outer shell 81 and fix the snap-fit ​​outer shell 81, thereby fixing the fastener 83, thus ensuring the stability of the grooved disk 84 and preventing the grooved disk 84 from shaking or rotating.

[0049] Both the first movable shell 6 and the second movable shell 7 are integrally provided with a threaded cylinder for threaded connection with screws, and the first movable shell 6 and the second movable shell 7 are fixedly connected by screws. The side of the first movable shell 6 away from the second movable shell 7 is provided with a through hole for the screw to pass through. The end of the second movable shell 7 away from the stop member 8 is integrally provided with a positioning cylinder 9. The positioning cylinder 9 is located inside the end of the first movable shell 6 away from the fixed upper shell 4 and is coaxially arranged with the first movable shell 6. The middle of the positioning cylinder 9 is provided with a through hole for the working tip of the ultrasonic transducer to pass through.

[0050] The first movable shell 6 and the second movable shell 7 are fixedly connected. Therefore, when the first movable shell 6 rotates, it can drive the second movable shell 7 to rotate synchronously. The elastic locking member 10, which is integrally set with the second movable shell 7, will also be displaced. The elastic locking member 10 is located in the slot of the grooved disk 84, so that the elastic locking member 10 can move to the next slot and engage with the slot during displacement. This allows the first movable shell 6 and the second movable shell 7 to rotate while maintaining stability.

[0051] The fixed upper shell 4 and the second movable shell 7 are both circular with the same diameter at the end near the stop member 8. The inner diameter of the circular end of the fixed upper shell 4 is larger than the outer diameter of the snap-fit ​​outer shell 81. The circular ends of the fixed upper shell 4 and the second movable shell 7 are provided with semi-circular grooves for the handle cover 3 to pass through at the positions corresponding to the handle cover 3.

[0052] The first movable shell 6 is a large semi-circle at one end near the fixed upper shell 4 and is fitted onto the outer side of the circular end of the fixed upper shell 4; the bidirectional range of motion of the first movable shell 6 is 0°-45°.

[0053] The end of the main handle 1 away from the handle cover 3 is coaxially fixedly connected to the end cover 2.

[0054] By adopting the above technical solution, the snap-fit ​​structure between the elastic clip 10 and the slot of the grooved disc 84, and the cooperation between the positioning post 11 and the groove of the snap-fit ​​outer shell 81, make the connection between the components tight and the positioning accurate, ensuring the stability and reliability of the entire handle during use; the bidirectional movement range of the first movable shell 6 and the second movable shell 7 is 0°-45°, which can meet the teeth cleaning needs at different angles and improve the flexibility and comprehensiveness of cleaning.

[0055] The working principle of this utility model is as follows: the tube hole 12 can fix the water-air mixing tube, so that the water-air mixing tube can transfer the water mist generated by the water-air mixing to the working tip. The resulting mist water flow has a wide coverage and sufficient impact force. Even with a small water flow, the mist water flow can penetrate into narrow dead corners such as tooth gaps and gingival sulci. At the same time, the water mist forms a buffer layer between the working tip and the teeth, which greatly reduces the direct friction between the working tip and the teeth and gums, avoiding the strong discomfort caused by teeth cleaning for people with sensitive teeth. Moreover, because the impact force of the mist water flow is dispersed, it is not easy to enter the throat or nasal cavity, reducing the occurrence of choking.

[0056] The fixed upper shell 4, together with the second movable shell 7, can wrap around the snap-fit ​​outer shell 81 and fix the snap-fit ​​outer shell 81, thereby fixing the fastener 83, thus ensuring the stability of the slotted disk 84 and preventing the slotted disk 84 from shaking or rotating.

[0057] The first movable shell 6 and the second movable shell 7 are fixedly connected. Therefore, when the first movable shell 6 rotates, it can drive the second movable shell 7 to rotate synchronously. The elastic locking member 10, which is integrally set with the second movable shell 7, will also be displaced. The elastic locking member 10 is located in the slot of the grooved disk 84, so that the elastic locking member 10 can move to the next slot and engage with the slot during the displacement, so that the first movable shell 6 and the second movable shell 7 can rotate while maintaining stability.

[0058] The snap-fit ​​structure between the elastic clip 10 and the slot of the grooved disc 84, and the cooperation between the positioning post 11 and the groove of the snap-fit ​​outer shell 81, ensure that the connection between the components is tight and the positioning is accurate, thus ensuring the stability and reliability of the entire handle during use. The bidirectional range of motion of the first movable shell 6 and the second movable shell 7 is 0°-45°, which can meet the teeth cleaning needs at different angles and improve the flexibility and comprehensiveness of cleaning.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-air dual-channel ultrasonic dental scaler handle, characterized in that: include The main handle (1) is convenient for medical staff to hold. One end of the main handle (1) is fixedly connected to the handle cover (3). The handle cover (3) is provided with a stop (8) away from the main handle (1). The fixed upper shell (4) is provided with a side shell (5) on the side of the fixed upper shell (4) located away from the handle cover (3) of the stop (8), and the side shell (5) is fixedly connected to the fixed upper shell (4); the space between the fixed upper shell (4) and the side shell (5) is for storing the handle cover (3); The fixed upper shell (4) is movably connected to a first movable shell (6) at one end away from the handle cover (3). One side of the first movable shell (6) is fixedly connected to a second movable shell (7), and there is a space between the first movable shell (6) and the second movable shell (7) for storing the stop (8). The first movable shell (6) has a through hole at one end away from the fixed upper shell (4) for the working tip of the ultrasonic transducer to pass through; the first movable shell (6) has a pipe hole (12) at one side away from the fixed upper shell (4) for the water-air mixing pipe to pass through and for fixing the water-air mixing pipe; the second movable shell (7) has a circular through hole at the position corresponding to the stop (8), and the inner wall of the circular through hole is integrally provided with an elastic clip (10). The stop (8) includes a grooved disc (84), on one side of which a plurality of uniformly distributed annular slots are provided, and the elastic clip (10) engages with the slots; the side of the grooved disc (84) away from the slots is provided with a fixed member (83) in an integral coaxial manner, which is located inside the snap-fit ​​housing (81).

2. The water-air dual-channel ultrasonic dental cleaning handle according to claim 1, characterized in that: The outer shell (81) is cylindrical, and the fixing member (83) is coaxially distributed with the outer shell (81); the inner part of the outer shell (81) is coaxially fixedly connected to the central shaft (82).

3. The water-air dual-channel ultrasonic dental cleaning handle according to claim 2, characterized in that: The central shaft (82) has a D-shaped cross-section, and one end of the central shaft (82) away from the inner wall of the outer shell (81) is inserted into the fixing member (83). The fixing member (83) has a hole in the middle for insertion with the central shaft (82).

4. The water-air dual-channel ultrasonic dental cleaning handle according to claim 1, characterized in that: The snap-fit ​​outer shell (81) is located in the cavity formed after the fixed upper shell (4) and the second movable shell (7) are docked, and multiple long strip grooves are uniformly provided on the outer side of the snap-fit ​​outer shell (81); multiple positioning posts (11) are uniformly provided on the inner wall of the fixed upper shell (4) and the second movable shell (7) near the snap-fit ​​outer shell (81), and the multiple positioning posts (11) are respectively located in multiple grooves of the snap-fit ​​outer shell (81).

5. The water-air dual-channel ultrasonic dental scaler handle according to claim 1, characterized in that: The first movable shell (6) and the second movable shell (7) are both integrally provided with a threaded cylinder for threaded connection with screws, and the first movable shell (6) and the second movable shell (7) are fixedly connected by screws. The first movable shell (6) has a through hole for screws to pass through on the side away from the second movable shell (7).

6. The water-air dual-channel ultrasonic dental cleaning handle according to claim 1, characterized in that: The second movable shell (7) is integrally provided with a positioning cylinder (9) at one end away from the stop (8). The positioning cylinder (9) is located on the inner side of the end of the first movable shell (6) away from the fixed upper shell (4) and is coaxially arranged with the first movable shell (6). The positioning cylinder (9) is provided with a through hole in the middle for the ultrasonic transducer working tip to pass through.

7. The water-air dual-channel ultrasonic dental scaler handle according to claim 1, characterized in that: The fixed upper shell (4) and the second movable shell (7) are both circular with the same diameter at the end near the stop (8), and the inner diameter of the circular end of the fixed upper shell (4) is greater than the outer diameter of the snap-fit ​​outer shell (81).

8. The water-air dual-channel ultrasonic dental cleaning handle according to claim 7, characterized in that: The fixed upper shell (4) and the second movable shell (7) are provided with semi-circular grooves at the positions corresponding to the handle upper cover (3) for the handle upper cover (3) to pass through.

9. The water-air dual-channel ultrasonic dental cleaning handle according to claim 7, characterized in that: The first movable shell (6) is a large semicircle at one end near the fixed upper shell (4) and is sleeved on the outside of the circular end of the fixed upper shell (4); the first movable shell (6) has a bidirectional range of movement of 0°-45°.

10. The water-air dual-channel ultrasonic dental cleaning handle according to claim 7, characterized in that: The main handle (1) is coaxially fixedly connected to an end cap (2) at the end away from the handle cover (3).

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