Portable dental handpiece sterilizer

Abstract

The invention belongs to the technical field of medical instrument sterilization, and particularly relates to a portable dental handpiece sterilizer which comprises a box body, a cover body arranged above the box body and a dental handpiece body arranged in the box body, and a clamping assembly used for positioning the dental handpiece body is arranged in the box body. The clamping assembly comprises two sets of fixing cylinders fixedly connected to the inner wall of the box body, the inner wall of each fixing cylinder is fixedly connected with a spring, the other end of each spring is fixedly connected with a sliding rod, and the other ends of the sliding rods in each set are jointly and fixedly connected with a U-shaped plate. Through cooperation of the box body, the cover body, the clamping assembly and the sterilization assembly, the dental handpiece body can be stabilized in the box body by utilizing the clamping assembly, and meanwhile, the dental handpiece body can be sterilized by utilizing the sterilization assembly, so that compared with a traditional large table type high-pressure steam sterilizer, the portable high-pressure steam sterilizer is convenient to carry during use, and the practicability is high. The method can be applied to various use scenes.

Description

Technical Field

[0001] This invention relates to the field of medical device sterilization technology, specifically a portable dental handpiece sterilizer. Background Technology

[0002] Dental handpieces are core medical devices used most frequently in dental clinical treatment, coming into direct and prolonged close contact with the patient's oral mucosa, teeth, and periodontal tissues. During various procedures such as fillings, extractions, root canals, scaling, and restoration preparation, they frequently penetrate key areas inside the oral cavity. Due to the complex microecological environment within the oral cavity, handpieces inevitably become contaminated with the patient's saliva, blood, periodontal pocket secretions, tissue debris, and various naturally occurring pathogenic microorganisms in the oral cavity. These contaminants not only adhere to the surface of the handpiece but may also penetrate internal tubing and bearings through the handpiece's airways and water channels. Crevices can form biofilms that are difficult to remove. If not thoroughly sterilized in a timely manner, residual pathogens can infect the next patient through direct contact or aerosol transmission during subsequent treatments, easily leading to serious cross-infection events. Therefore, dental handpieces must be sterilized in a standardized and thorough manner after each use to cut off the transmission path of pathogens at the source. This is not only a key link in ensuring the health and safety of patients, but also a core requirement for medical institutions to implement infection control standards, improve medical quality, and protect the rights and interests of both doctors and patients. Furthermore, it is an important prerequisite for avoiding medical disputes caused by cross-infection and ensuring the orderly conduct of diagnosis and treatment.

[0003] Currently, dental handpiece sterilizers on the market are mainly large benchtop high-pressure steam sterilizers. Although they have good sterilization effects, they are not portable. Large benchtop sterilizers are bulky and heavy, and need to be fixed in a dedicated space. They cannot meet the space and portability requirements of mobile healthcare, home services, or small clinics, thus limiting their use. Therefore, we provide a portable dental handpiece sterilizer. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a portable dental handpiece sterilizer. The clamping component can stabilize the dental handpiece body in the housing, while the sterilization component can sterilize the dental handpiece body. Compared with traditional large benchtop high-pressure steam sterilizers, it is convenient to carry and can be applied to a variety of usage scenarios.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable dental handpiece sterilizer, comprising a housing, a cover disposed on top of the housing, and a dental handpiece body disposed inside the housing. The housing is provided with a clamping assembly for positioning the dental handpiece body. The clamping assembly includes two sets of fixing cylinders fixedly connected to the inner wall of the housing. A spring is fixedly connected to the inner wall of each fixing cylinder. A sliding rod is fixedly connected to the other end of each spring. A U-shaped plate is fixedly connected to the other end of each set of sliding rods. An annular block is fixedly connected to both ends of each U-shaped plate, and the annular block is located outside the dental handpiece body.

[0006] The interior of the box is equipped with a sterilization assembly for disinfecting the dental handpiece. The sterilization assembly includes a water tank fixedly connected to the bottom wall of the box. Multiple heating rods are fixedly connected to the inner wall of the water tank. A set of connecting pipes is connected to the upper surface of the water tank. The ends of the set of connecting pipes that are close to each other are fixedly connected to an annular pipe. The upper surface of the annular pipe is connected to an annularly arranged air jet pipe. The outer surface of the annular pipe is connected to an annularly arranged vertical pipe. Each vertical pipe has an air jet nozzle arranged at equal intervals on its outer surface.

[0007] As a preferred embodiment of the present invention, a positioning plate is fixedly connected to the outer surface of each group of fixed cylinders, a limiting rod is slidably connected to each positioning plate, one end of each limiting rod is connected to one side of the U-shaped plate, and the other end of each limiting rod is fixedly connected to the limiting plate.

[0008] As a preferred embodiment of the present invention, a pull plate is fixedly connected to one side of the top of each U-shaped plate, and an anti-slip sleeve is provided on the outside of each pull plate.

[0009] As a preferred embodiment of the present invention, a set of equally spaced reinforcing rods are fixedly connected to the outer surface of each riser, and the other end of each reinforcing rod is connected to the inner wall of the box.

[0010] As a preferred embodiment of the present invention, a sealing frame is fixedly connected to the bottom surface of the cover, and the bottom end of the sealing frame extends into the interior of the box.

[0011] As a preferred embodiment of the present invention, a sealing gasket is fixedly connected to the outer surface of the sealing frame, and the outer surface of the sealing gasket is in contact with the inner wall of the box.

[0012] As a preferred embodiment of the present invention, a set of handles is rotatably mounted on the outer surface of the box, and each handle is provided with an anti-wear sleeve on its outer surface.

[0013] As a preferred embodiment of the present invention, the outer surface of the water storage tank is connected to a water injection pipe, the input end of the water injection pipe extends to the outside of the tank, and a sealing plug is provided at the input end of the water injection pipe.

[0014] As a preferred embodiment of the present invention, a set of drainage grooves are provided on the bottom surface of the box, and a sealing block is provided inside each drainage groove.

[0015] As a preferred embodiment of the present invention, each sealing block has a set of anti-slip protrusions arranged at equal intervals fixedly connected to its bottom surface.

[0016] Compared with the prior art, the present invention provides a portable dental handpiece sterilizer, which has the following beneficial effects:

[0017] 1. This portable dental handpiece sterilizer, through the cooperation of its housing, cover, clamping components, and sterilization components, uses the clamping components to stabilize the dental handpiece in the housing, while the sterilization components sterilize the dental handpiece. Compared with traditional large benchtop high-pressure steam sterilizers, it is convenient to carry and can be applied to a variety of usage scenarios.

[0018] 2. This portable dental handpiece sterilizer, through the combination of a sealing frame and a sealing gasket, can seal the connection between the box and the cover, effectively preventing water vapor leakage and ensuring the sterilization effect of the dental handpiece. Through the combination of a drainage groove, a sealing block, and anti-slip ridges, when steam condenses into water inside the box, the sealing block can be removed to drain the water, facilitating subsequent use. At the same time, the anti-slip ridges can enhance the stability of the box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the cover body of the present invention from the bottom view;

[0021] Figure 3 This is a three-dimensional structural schematic diagram of the box body of the present invention from a top view;

[0022] Figure 4 This is a three-dimensional structural schematic diagram of the front sectional view of the box body of the present invention;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the clamping component of the present invention;

[0024] Figure 6 This is a three-dimensional structural schematic diagram of the orthographic section of the fixing cylinder of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the sterilization component of the present invention.

[0026] In the diagram: 1. Box body; 2. Cover body; 3. Clamping assembly; 301. Fixing cylinder; 302. Spring; 303. Slide rod; 304. U-shaped plate; 305. Annular block; 306. Positioning plate; 307. Limiting rod; 308. Limiting plate; 309. Pull plate; 4. Sterilization assembly; 401. Water tank; 402. Heating rod; 403. Connecting pipe; 404. Annular pipe; 405. Air jet pipe; 406. Riser pipe; 407. Air jet nozzle; 408. Reinforcing rod; 5. Sealing frame; 6. Sealing gasket; 7. Handle; 8. Water injection pipe; 9. Sealing plug; 10. Drainage groove; 11. Sealing block; 12. Anti-slip convex strip; 13. Dental handpiece body. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example

[0029] Please see Figure 1-7 In this embodiment, a portable dental handpiece sterilizer includes a housing 1, a cover 2 disposed on top of the housing 1, and a dental handpiece body 13 disposed inside the housing 1. A sealing frame 5 is fixedly connected to the bottom surface of the cover 2, and the bottom end of the sealing frame 5 extends into the interior of the housing 1. The sealing frame 5 can be used to seal the housing 1 and the cover 2. A sealing gasket 6 is fixedly connected to the outer surface of the sealing frame 5, and the outer surface of the sealing gasket 6 contacts the inner wall of the housing 1. The sealing gasket 6 can further improve the sealing effect of the housing 1 and the cover 2, thereby effectively preventing steam leakage.

[0030] A set of handles 7 are rotatably installed on the outer surface of the box 1. Each handle 7 has an anti-wear sleeve on its outer surface. The handles 7 make it convenient for staff to carry and transport the box 1 and the cover 2, realizing convenient carrying and flexible transportation of the device. Whether moving between different treatment rooms within the clinic or going out to carry out door-to-door treatment, emergency rescue and other work, the handles 7 can provide staff with an efficient way to carry the device, effectively reducing the burden of carrying it, allowing the device to quickly respond to the sterilization needs of different scenarios, and further improving the convenience and flexibility of use.

[0031] The interior of the housing 1 is equipped with a clamping assembly 3 for positioning the dental handpiece 13. The clamping assembly 3 includes two sets of fixing cylinders 301 fixedly connected to the inner wall of the housing 1. A spring 302 is fixedly connected to the inner wall of each fixing cylinder 301. A slide rod 303 is fixedly connected to the other end of each spring 302. A U-shaped plate 304 is fixedly connected to the other end of each set of slide rods 303. Annular blocks 305 are fixedly connected to both ends of each U-shaped plate 304, and the annular blocks 305 are located outside the dental handpiece 13. Pushing the annular blocks 305 away from each other causes the slide rods 303 to compress the springs 302, thereby opening the dental handpiece 13 to be sterilized from the top of the housing 1. The mouthpiece is slowly inserted into the interior, and the handpiece's posture is adjusted to ensure that the entire handpiece is located in the core sterilization area. When the annular block 305 is released, the spring 302, which has been compressed and stored, will quickly release its elastic potential energy, generating a reverse thrust to push the slide bar 303 back to the center of the chamber 1. The two sets of annular blocks 305 then move closer to each other synchronously, forming a clamping and fixing of the dental handpiece body 13. This not only avoids displacement or collisions caused by steam impact or slight vibration of the equipment during sterilization, but also prevents damage to the dental handpiece body 13 caused by rigid clamping. Finally, the cover 2 is closed downwards to achieve a tight seal at the top of the chamber 1, providing a stable sealed environment for subsequent high-temperature and high-pressure steam sterilization and preventing steam leakage from affecting the sterilization effect.

[0032] In this embodiment, a positioning plate 306 is fixedly connected to the outer surface of each set of fixed cylinders 301. A limiting rod 307 is slidably connected to each positioning plate 306. One end of each limiting rod 307 is connected to one side of the U-shaped plate 304. The other end of each limiting rod 307 is fixedly connected to a limiting plate 308. When the push plate 309 drives the slide rod 303 to slide along the fixed cylinder 301, the U-shaped plate 304 will move synchronously with the slide rod 303 and pull the limiting rods 307 on both sides to slide in the same direction. At this time, the limiting plate 308 slides synchronously. When the slide bar 303 slides to its maximum stroke, the limiting plate 308 will abut tightly against one side of the positioning plate 306 to form a rigid limit. This can effectively limit the movement range of the U-shaped plate 304, prevent it from causing the slide bar 303 to slide excessively and detach from the fixed cylinder 301, ensure the assembly stability of the slide bar 303, spring 302 and fixed cylinder 301, prevent clamping failure or equipment failure due to component detachment during sterilization, and further improve the reliability and safety of the device operation.

[0033] In this embodiment, a pull plate 309 is fixedly connected to one side of the top of each U-shaped plate 304. Each pull plate 309 is provided with an anti-slip sleeve. When operating, the operator does not need to use any additional tools. He can simply hold the pull plate 309 with his hand to easily push the U-shaped plate 304. In turn, the U-shaped plate 304 drives the slide rod 303 and the inner ring block 305 to move synchronously. This makes it easier and more accurate to create space inside the housing 1 for the dental handpiece body 13, greatly improving the convenience and stability of the operation.

[0034] In this embodiment: The interior of the housing 1 is equipped with a sterilization component 4 for disinfecting the dental handpiece 13. The sterilization component 4 includes a water tank 401 fixedly connected to the bottom wall of the housing 1. Multiple heating rods 402 are fixedly connected to the inner wall of the water tank 401. The heating rods 402 heat the water inside the water tank 401, turning it into high-temperature steam. A set of connecting pipes 403 is connected to the upper surface of the water tank 401. The ends of the connecting pipes 403 that are close to each other are fixedly connected to an annular pipe 404. The upper surface of the annular pipe 404 is connected to a ring-shaped arrangement of... High-temperature steam can enter the annular tube 404 from the connecting pipe 403 and be sprayed onto the dental handpiece body 13 from the jet pipe 405, thereby completing the sterilization of the dental handpiece body 13. The outer surface of the annular tube 404 is connected to the annularly arranged risers 406. Each riser 406 has equidistantly arranged jet nozzles 407 on its outer surface. Excess steam inside the annular tube 404 will enter the riser 406. The steam inside the riser 406 can be sprayed onto the dental handpiece body 13 from the jet nozzles 407, thereby completing the comprehensive sterilization of the dental handpiece body 13.

[0035] In this embodiment, a set of equally spaced reinforcing rods 408 are fixedly connected to the outer surface of each riser 406. The other end of each reinforcing rod 408 is connected to the inner wall of the housing 1. The reinforcing rods 408 connect the riser 406 to the housing 1, thereby ensuring the stability of the riser 406. This effectively counteracts the reaction force generated during high-pressure steam injection, preventing the riser 406 from shaking or shifting due to force, and ensuring that the riser 406 always maintains a vertical and precise installation posture. At the same time, the supporting function of the reinforcing rods 408... It can also enhance the overall structural strength of the riser 406, preventing it from deforming under long-term high temperature and high pressure conditions. This ensures that the air jet vent 407 on the side wall of the riser 406 is always aligned with the dental handpiece body 13 inside the chamber 1. Whether it is the steam introduced by the annular pipe 404 or the steam ejected by the riser 406 itself, it can be accurately and stably blown to all parts of the dental handpiece body 13, achieving all-round sterilization coverage and avoiding deviation of the steam jet direction due to the offset of the riser 406, thus ensuring the uniformity and thoroughness of the sterilization effect.

[0036] The outer surface of the water storage tank 401 is connected to a water injection pipe 8. The input end of the water injection pipe 8 extends to the outside of the tank body 1. A sealing plug 9 is provided at the input end of the water injection pipe 8. The staff can quickly and conveniently replenish the purified water required for sterilization into the water storage tank 401 through the water injection pipe 8 without disassembling the device, which effectively improves the efficiency of water replenishment. At the same time, the water injection pipe 8 is equipped with a suitable sealing plug 9. When the water storage tank 401 is full of water, the sealing plug 9 is tightly inserted into the opening of the water injection pipe 8 to achieve a reliable seal of the water injection pipe 8. This can effectively prevent dust, hair, bacteria and other impurities in the air from entering the water storage tank 401, avoid contaminating the sterilization water, ensure the cleanliness of the steam, and thus ensure that the sterilization effect of the dental handpiece body 13 is not affected by impurities. At the same time, it can also prevent the water in the water storage tank 401 from overflowing due to evaporation or shaking, thus improving the hygiene and reliability of the device.

[0037] The bottom surface of the box 1 is provided with a set of drainage grooves 10. Each drainage groove 10 is equipped with a sealing block 11. When steam condenses into water inside the box 1, the sealing block 11 can be opened, and the water will flow out of the drainage groove 10 for the convenience of the staff for subsequent use. The sealing block 11 can seal the drainage groove 10 to prevent steam leakage. Each sealing block 11 is fixedly connected to a set of anti-slip ridges 12 arranged at equal intervals on the bottom surface. When the box 1 is in a standing position, the anti-slip ridges 12 will contact the ground, further increasing the friction between the box 1 and the ground, thereby ensuring the stability of the box 1.

[0038] The working principle and usage process of this invention are as follows: First, remove the cover 2 from the top of the housing 1. Then, grasp the symmetrically arranged pull plates 309 and push them to both sides, causing the pull plates 309 to slide the U-shaped plate 304 and the slide rod 303 away from the center of the housing 1. At this time, the annular blocks 305 on the U-shaped plate 304 will move away from each other simultaneously, and the slide rod 303 will compress the spring 302 to generate contraction and storage force. Then, insert the dental handpiece body 13 to be sterilized into the housing 1 through the top opening, positioning it between the two sets of annular blocks 305. Ensure that the key parts of the handpiece, such as the head, handle, and tubing, are within the clamping range of the annular blocks 305. When the pull plates 309 are released, the contracted spring 302 will quickly extend and generate a reverse thrust, pushing the slide rod 303 back to the center of the housing 1. The two sets of annular blocks 305 will then move closer to each other, forming a stable clamping and fixing from both sides of the dental handpiece body 13, effectively preventing displacement due to steam impact or vibration during sterilization. Finally, close the cover 2.

[0039] Subsequently, by energizing the heating rod 402, the heating rod 402 quickly heats the purified water stored inside the water tank 401, causing the water to rapidly vaporize and generate saturated steam. The steam is precisely introduced into the annular pipe 404 through the connecting pipe 403, and then sprayed onto the head of the dental handpiece 13 through multiple evenly distributed jet nozzles 405 on the annular pipe 404, achieving deep sterilization of the handpiece. At the same time, excess steam that is not completely sprayed inside the annular pipe 404 enters the riser 406 and is sprayed through multiple inclined jet nozzles 405 on the side wall of the riser 406. 7. Spray steam onto the outer surface, crevices, and clamping parts of the dental handpiece 13 to form an all-round steam coverage, thoroughly killing bacteria, viruses, spores, and other pathogenic microorganisms remaining on and inside the dental handpiece 13, thereby completing the comprehensive and thorough sterilization of the dental handpiece 13. Compared with the shortcomings of traditional large benchtop high-pressure steam sterilizers, which are bulky, heavy, require fixed placement in a dedicated space, and rely on an external power source, this method is easy to carry and transport, and can be used in various scenarios, greatly improving the flexibility and convenience of dental handpiece sterilization.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable dental handpiece sterilizer, comprising a housing (1), a cover (2) disposed above the housing (1), and a dental handpiece body (13) disposed inside the housing (1), characterized in that: The housing (1) is provided with a clamping assembly (3) for positioning the dental handpiece body (13). The clamping assembly (3) includes two sets of fixing cylinders (301) fixedly connected to the inner wall of the housing (1). A spring (302) is fixedly connected to the inner wall of each fixing cylinder (301). A slide rod (303) is fixedly connected to the other end of each spring (302). A U-shaped plate (304) is fixedly connected to the other end of each set of slide rods (303). A ring block (305) is fixedly connected to both ends of each U-shaped plate (304). The ring block (305) is located outside the dental handpiece body (13). The interior of the housing (1) is provided with a sterilization component (4) for disinfecting the dental handpiece body (13). The sterilization component (4) includes a water tank (401) fixedly connected to the bottom wall of the housing (1). Multiple heating rods (402) are fixedly connected to the inner wall of the water tank (401). A set of connecting pipes (403) is connected to the upper surface of the water tank (401). The ends of the set of connecting pipes (403) that are close to each other are fixedly connected to an annular pipe (404). An annularly arranged air jet pipe (405) is connected to the upper surface of the annular pipe (404). An annularly arranged vertical pipe (406) is connected to the outer surface of the annular pipe (404). Each vertical pipe (406) has an air jet port (407) arranged at equal intervals on its outer surface.

2. The portable dental handpiece sterilizer according to claim 1, characterized in that: Each set of fixed cylinders (301) has a positioning plate (306) fixedly connected to its outer surface. Each positioning plate (306) has a limiting rod (307) slidably connected to it. One end of each limiting rod (307) is connected to one side of the U-shaped plate (304), and the other end of each limiting rod (307) is fixedly connected to a limiting plate (308).

3. The portable dental handpiece sterilizer according to claim 1, characterized in that: Each of the U-shaped plates (304) has a pull plate (309) fixedly connected to one side of its top end, and each pull plate (309) has an anti-slip sleeve on its exterior.

4. The portable dental handpiece sterilizer according to claim 1, characterized in that: Each of the risers (406) has a set of equidistant reinforcing rods (408) fixedly connected to its outer surface, and the other end of each reinforcing rod (408) is connected to the inner wall of the box (1).

5. The portable dental handpiece sterilizer according to claim 1, characterized in that: A sealing frame (5) is fixedly connected to the bottom surface of the cover (2), and the bottom end of the sealing frame (5) extends into the interior of the box (1).

6. The portable dental handpiece sterilizer according to claim 5, characterized in that: A sealing gasket (6) is fixedly connected to the outer surface of the sealing frame (5), and the outer surface of the sealing gasket (6) is in contact with the inner wall of the box (1).

7. The portable dental handpiece sterilizer according to claim 1, characterized in that: A set of handles (7) are rotatably mounted on the outer surface of the box (1), and each handle (7) is provided with an anti-wear sleeve on its outer surface.

8. The portable dental handpiece sterilizer according to claim 1, characterized in that: The outer surface of the water storage tank (401) is connected to a water injection pipe (8), the input end of the water injection pipe (8) extends to the outside of the tank body (1), and a sealing plug (9) is provided at the input end of the water injection pipe (8).

9. The portable dental handpiece sterilizer according to claim 1, characterized in that: The bottom surface of the box (1) is provided with a set of drainage grooves (10), and each drainage groove (10) is provided with a sealing block (11).

10. The portable dental handpiece sterilizer according to claim 9, characterized in that: Each of the sealing blocks (11) has a set of anti-slip ridges (12) fixedly connected to its bottom surface.

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