Aerosol condensation converter

Abstract

The aerosol condensation converter comprises a condensation conversion box, a water inlet and a water outlet are formed in the condensation conversion box, an equipment connector is arranged on the water inlet of the condensation conversion box, and a cross-shaped opening is formed in the equipment connector; and a detachably connected water outlet conversion head is arranged on the water outlet of the condensation conversion box. The aerosol condensation converter can condense and convert aerosol generated in the conventional disinfection, maintenance and sampling process, and actively control pollution space, time and concentration, so that the risk probability of hospital infection of personnel in the diagnosis and treatment area of the stomatology department is reduced to the maximum extent, and the risk of hospital infection of the personnel in the diagnosis and treatment area of the stomatology department is reduced to the maximum extent. The dental comprehensive treatment table and related equipment are safely and effectively disinfected and maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an aerosol condensation converter. Background Art

[0002] The dental unit, abbreviated as the dental chair, is an essential medical device in the dental diagnosis and treatment process. When connected to external devices (such as high- and low-speed turbines, ultrasonic handpieces, sandblasters, etc.), kinetic energy is generated by high-pressure gas. During high-speed operation, the rotation speed is usually above 200,000 revolutions per minute (rotation or vibration). Compressed air is used to connect the device through the connecting pipe of the treatment machine and the external adapter, and the turbine blades are rotated inside the device head to drive the high-speed rotation of the bur for work. At the same time, the water circuit system of the device mixes air and water through small holes in the nozzle to form a high-speed water mist, thereby washing away food residues and bacteria.

[0003] Formation of bioaerosols: During dental diagnosis and treatment, devices such as high-speed turbines, sandblasters, and ultrasonic periodontal treatment devices are all connected to the dental unit (dental chair). The aerosols generated during operation are mixed with bacteria in the oral environment, blood, and saliva, making the bacteria, viruses, and pathogenic microorganisms in the air more complex. When combined with Staphylococcus epidermidis, Micrococcus luteus, Staphylococcus haemolyticus, etc., they are quickly converted into bioaerosols (bioaerosols refer to aerosols containing biological particles, including bacteria, viruses, as well as sensitizing pollen, mold spores, fern spores, and parasite eggs. In addition to the characteristics of general aerosols, they also have infectivity, sensitization, etc.). They have extremely strong penetration and a low sedimentation speed, so they can be suspended in the air for a long time and are more likely to be inhaled into the human respiratory tract. The fine particles that finally settle on the environment and object surfaces can be lifted by wind, cleaning, or vibration, causing secondary pollution of the environment. Research has found that aerosols containing a large number of pathogenic microorganisms pose a threat to immunocompromised patients such as leukemia, aplastic anemia, and psoriasis, and even threaten life and health safety in severe cases.

[0004] Spatio-temporal distribution of aerosols in the dental consulting room: ①Spatial distribution: Research has confirmed that the concentrations of aerosols and droplets are the highest within a diameter range of 0.609 m centered on the patient. The area within a diameter of 150 cm around the patient's mouth is contaminated by aerosols, with the most severe contamination within a diameter of 50 cm around the mouth. ②Temporal distribution: It is generally believed that the content of bacterial aerosols is the highest during dental treatment, and the level of bacterial aerosols decreases 1 - 2 hours after the treatment ends. The air pollution degree in the consulting room gradually worsens 30 - 60 minutes after the start of scaling, and the number of air colonies does not start to decrease until 10 minutes after the end of scaling, but it is still higher than the national requirement level. 2 hours after the start of diagnosis and treatment in a consulting room with multiple dental chairs, the average number of air colonies in the consulting room increases significantly, which is 5 times that before the start of the clinic. 1 hour after the end of treatment in a consulting room with multiple dental chairs, the number of air colonies in the consulting room is significantly lower than that just after the end of treatment, decreasing by 45%, but it is still 2.3 times that before the start of the clinic.

[0005] Prevention and control strategies for aerosols in the consulting room: Currently, in addressing the problem of aerosol pollution in the consulting room, we mainly start from the following four aspects: ①Controlling the source of aerosol generation; ②Removing aerosol pollutants; ③Strengthening personnel protection measures; ④Reducing the indoor aerosol concentration. In a sense, it is basically in a passive defensive state. The original idea of this design invention is completely different from the previous concept. Since it is impossible to guard against them all, we take the initiative to find ways to control their existence.

[0006] Inevitable aerosols: To reduce the risk of nosocomial infections in dental treatment, the "Technical Specification for Cleaning and Disinfection of the Water Routes of Dental Comprehensive Treatment Tables" clearly stipulates the disinfection of the water routes of dental chairs. The specification states (T / WSJD40—2023) that after the end of daily diagnostic and treatment work, the water routes should be disinfected; when the dental comprehensive treatment table is out of use for ≥72 hours, the water routes should be disinfected, and it is advisable to use it after passing the monitoring. Before the start of the clinic every day, the outlet water pipe of the diagnostic and treatment water should be flushed for at least 3 minutes, the drain pipe of the spittoon should be flushed, and the suction pipe should be aspirated and flushed for no less than 30 seconds. After each diagnostic and treatment, the connecting hoses of oral instruments such as the handpiece should be flushed for at least 30 seconds, and after the end of daily diagnostic and treatment, the water routes should be flushed for at least 3 minutes. These processes of flushing, disinfection, and maintenance will inevitably generate a large amount of aerosols, increasing the probability of environmental pollution in the consulting room; on the other hand, for the maintenance of the most commonly used turbine in dental treatment, the "Technical Specification for Disinfection and Sterilization of Oral Instruments" WS506 - 2016 clearly states that after the use of the dental turbine, the water and gas systems of the dental comprehensive treatment table should be flushed for 30S with the bur attached. Currently, the rotational speed of the dental chair turbine is mostly between 30,000 - 40,000 rpm. When rotating, it uses a point spray type of water output. Inevitably, a large amount of aerosols are generated.

[0007] Due to the particularity in the oral diagnosis and treatment process, tiny droplets and aerosols are extremely likely to be generated in the air. Patients and medical staff are long-term exposed to the environment containing pathogenic microorganism aerosols, which is extremely likely to cause nosocomial infections. Therefore, effectively reducing and sedimenting the generation of aerosols is also a key issue in reducing the risk of nosocomial infections. Summary of the Invention

[0008] The purpose of the present invention is to overcome the deficiencies of the above-mentioned background technology and provide an aerosol condensation converter. This condensation converter can condense and transform the aerosols generated during routine disinfection, maintenance, and sampling, and actively control from the aspects of polluted space, time, and concentration. Ultimately, while maximizing the reduction of the risk probability of nosocomial infections among the personnel in the dental treatment area, it can safely and effectively disinfect and maintain the dental unit and related equipment.

[0009] To achieve the above purpose, an aerosol condensation converter designed by the present invention includes a condensation conversion box. An inlet and an outlet are provided on the condensation conversion box. A device connector is provided on the inlet of the condensation conversion box, and a cross-shaped opening is provided on the device connector; a detachable connection outlet adapter is provided on the outlet of the condensation conversion box.

[0010] Furthermore, the condensation conversion box is in the shape of a cuboid or a cube, and the condensation conversion box is a transparent structure made of a rigid material; the inlet and the outlet are circular.

[0011] Furthermore, the inlet and the outlet are provided on two opposite sides of the condensation conversion box, and the surface where the inlet is located and the surface where the outlet is located are arranged in parallel.

[0012] Furthermore, the inlet and the outlet are provided on two adjacent sides of the condensation conversion box, and the surface where the inlet is located and the surface where the outlet is located are arranged at a right angle.

[0013] Furthermore, the device connector includes a cover body and a connecting head. A cross-shaped opening is provided on the cover body, and the connecting head of the device connector can be embedded into the inlet and sealed and fixedly connected thereto.

[0014] Furthermore, the device connector is a flexible member made of silicone material, and the diameter of the cover body is larger than the diameter of the connecting head.

[0015] Furthermore, the outlet adapter includes an adapter body. An outlet pipe is provided at one end of the outlet adapter, and a connecting column is provided at the other end of the adapter body.

[0016] Furthermore, several circular corrugated protrusions are provided on the outer wall of the outlet end of the outlet pipe.

[0017] Furthermore, an external thread is provided on the outer wall of the connecting column, and an internal thread matching the external thread is provided at the water outlet of the condensation conversion box.

[0018] Still further, the outlet pipe is a straight pipe or a bent pipe.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] Firstly, the aerosol condensation converter of the present invention condenses and converts the aerosol generated during the routine disinfection, maintenance and sampling of the dental unit and related external devices (including high-speed turbines, sandblasting guns, ultrasonic handpieces, etc.); actively controls from the aspects of polluted space, time and concentration, and finally maximizes the reduction of the risk probability of nosocomial infection of the personnel in the dental treatment area, while safely and effectively disinfecting and maintaining the dental unit and related devices.

[0021] Secondly, the water outlet conversion head of the aerosol condensation converter of the present invention can effectively fix the equipment head without wearing it, making the use process more convenient and labor-saving; the overall design direction focuses on the combination of hand and eye, which is not only convenient to use, but also can observe the water supply situation and changes, facilitating the correct preliminary judgment on the disinfection and maintenance of the instrument and equipment.

[0022] Thirdly, the aerosol condensation converter of the present invention restricts the space of the water outlet of the dental unit waterway (working end of the external connection device) after use, so that under the condition of installing the original working tip and operating instrument, it can move at high speed in the condensation box, and the generated water mist flushes out the bacteria-carrying residues remaining or aspirated back in the equipment during the treatment process; the biological aerosol and spray generated under high-speed movement collide and gather repeatedly in the combination box, condense and liquefy; and are output in the form of water flow from the water outlet conversion head through the action of gravity. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the aerosol condensation converter according to the first embodiment of the present invention;

[0024] Figure 2 is Figure 1 the front view structural diagram of the aerosol condensation converter shown in ;

[0025] Figure 3 is Figure 1 the structural diagram of the condensation conversion box in ;

[0026] Figure 4 is Figure 1 the structural diagram of the water outlet conversion head in ;

[0027] Figure 5 is Figure 4 the front view structural diagram of the water outlet conversion head shown in ;

[0028] Figure 6 Schematic structural diagram of the aerosol condensation converter according to the second embodiment of the present invention;

[0029] Figure 7 is Figure 6 Front view structural diagram of the aerosol condensation converter shown;

[0030] Figure 8 is Figure 6 Schematic structural diagram of the condensation conversion box in;

[0031] Figure 9 is Figure 6 Schematic structural diagram of the water outlet conversion head in;

[0032] Figure 10 is Figure 9 Front view structural diagram of the water outlet conversion head shown;

[0033] Figure 11 Schematic structural diagram of the equipment joint;

[0034] Figure 12 is Figure 11 Front view structural diagram of the equipment joint shown;

[0035] In the figure: condensation conversion box 1, water inlet 1.1, water outlet 1.2, equipment joint 2, opening 2.1, cover body 2.2, connecting head 2.3, water outlet conversion head 3, conversion head body 3.1, outlet pipe 3.2, connecting column 3.3, corrugated protrusion 3.4, external thread 3.5. Specific embodiments

[0036] The following will describe the implementation of the present invention in detail in combination with implementation cases, but they do not constitute a limitation to the present invention, and are only for example. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0037] The designed finished products of the aerosol condensation converter of the present invention are positioned in a series, and are divided into two categories: dental chair waterway disinfection sampling type and external equipment maintenance type. The aerosol condensation converter of the present invention is composed of three parts: a condensation conversion box, an equipment joint, and a water outlet conversion head. The specific performance characteristics of each component are shown in Table 1. The selected materials of the present invention are economical and durable, the production cost is not high, the practicability is strong and the utilization rate is high. At present, there are no identical and related design products in the industry field, and it has strong promotion in the market orientation, and has high value in both professional application and use benefits, and has been well verified from the finished product test. The model has been adjusted in terms of design layout and size according to the shape, size and action direction of the connected equipment.

[0038] Table 1 Characteristics table of each component

[0039]

[0040] Example 1:

[0041] As Figure 1 and Figure 2 shown in and , the aerosol condensation converter of the waterway disinfection sampling type of the first embodiment of the present invention includes a condensation conversion box 1. An inlet 1.1 and an outlet 1.2 are provided on the condensation conversion box 1. A device connector 2 is provided on the inlet 1.1 of the condensation conversion box 1, and a cross-shaped opening 2.1 is provided on the device connector 2; A detachable water outlet adapter 3 is provided on the outlet 1.2 of the condensation conversion box 1.

[0042] As Figure 3 shown, the condensation conversion box 1 is in the shape of a cuboid or a cube, and the condensation conversion box 1 is a transparent structure made of a hard material; both the inlet 1.1 and the outlet 1.2 are circular. The inlet 1.1 and the outlet 1.2 are arranged on two opposite sides of the condensation conversion box 1, and the surface where the inlet 1.1 is located is arranged parallel to the surface where the outlet 1.2 is located. In this embodiment, the condensation conversion box is made of acrylic material, the whole condensation conversion box is transparent, and both ends of the inlet 1.1 and the outlet 1.2 are circular openings for connection with other components. The size of the condensation conversion box is 45 mm in length, 35 mm in width, and 35 mm in height.

[0043] The device connector 2 includes a cover body 2.2 and a connector 2.3. A cross-shaped opening 2.1 is provided on the cover body 2.2. The connector 2.3 of the device connector 2 can be embedded into the inlet 1.1 for sealed and fixed connection therewith. In this embodiment, the inner diameter of the connector 2.3 is 20 mm. The device connector 2 is a flexible member made of silica gel material, and the diameter of the cover body 2.2 is larger than the diameter of the connector 2.3. In this embodiment, the device connector is made of white silica gel material, and the cross-section is designed to be circular, fixed to the condensation box, and non-detachable between the two. The middle of the device connector is designed with a cross-shaped opening, which can have greater tension. Coupled with the silica gel material used, it can better exert the elastic performance and can be better fixed at the device water outlet when rebounding, making it more stable.

[0044] As Figure 4 and Figure 5As shown, the water outlet adapter 3 includes an adapter body 3.1. One end of the water outlet adapter 3 is provided with an outlet pipe 3.2, and the outlet pipe 3.2 is a bent pipe. The other end of the adapter body 3.1 is provided with a connecting post 3.3. In this embodiment, the inner diameter of the outlet pipe 3.2 is 13.8 mm, and the inner diameter of the connecting post 3.3 is 14.6 mm. The outer wall of the outlet end of the outlet pipe 3.2 is provided with several circles of corrugated protrusions 3.4. In this way, through the design of the corrugated protrusions, the number of collisions of aerosol molecules can be increased compared with the straight tube design, and the liquefaction speed can be accelerated. The outer wall of the connecting post 3.3 is provided with an external thread 3.5, and the water outlet 1.2 of the condensation conversion box 1 is provided with an internal thread matching the external thread 3.5. In this embodiment, the water outlet adapter is made of PP polypropylene material, and two types of straight-through and elbow-through are selected according to the shape of the connecting device and the water outlet direction. The water outlet adapter is detachably connected through the cooperation of the external thread and the internal thread of the condensation conversion box 1.

[0045] Embodiment 2:

[0046] As Figure 6 and 7 As shown, the aerosol condensation converter of the external device maintenance type according to the second embodiment of the present invention includes a condensation conversion box 1. The condensation conversion box 1 is provided with a water inlet 1.1 and a water outlet 1.2. A device connector 2 is provided on the water inlet 1.1 of the condensation conversion box 1, and a cross-shaped opening 2.1 is opened on the device connector 2; a detachably connected water outlet adapter 3 is provided on the water outlet 1.2 of the condensation conversion box 1.

[0047] As Figure 8 As shown, the condensation conversion box 1 is in the shape of a cuboid or a cube, and the condensation conversion box 1 is a transparent structure made of a hard material; both the water inlet 1.1 and the water outlet 1.2 are circular. The water inlet 1.1 and the water outlet 1.2 are arranged on two adjacent sides of the condensation conversion box 1, and the surface where the water inlet 1.1 is located and the surface where the water outlet 1.2 is located are arranged at a right angle. In this embodiment, the condensation conversion box is made of acrylic material, the condensation conversion box is integrally transparent, and both ends of the water inlet 1.1 and the water outlet 1.2 are circular openings for connection with other components.

[0048] As Figure 11 and Figure 12As shown, the device connector 2 includes a cover body 2.2 and a connector 2.3. A cross-shaped opening 2.1 is provided on the cover body 2.2. The connector 2.3 of the device connector 2 can be embedded into the water inlet 1.1 and sealed and fixedly connected thereto. The device connector 2 is a flexible member made of silica gel material, and the diameter of the cover body 2.2 is larger than that of the connector 2.3. In this embodiment, the device connector is made of white silica gel material, has a circular cross-section design, and is fixed to the condensation box, and the two are non-detachable. The middle of the device connector has a cross-shaped opening design, which can have greater tension. Coupled with the silica gel material used, it can better exert the elastic performance and can be better fixed at the device water outlet when rebounding, making it more stable.

[0049] As Figure 9 and Figure 10 shown, the water outlet adapter 3 includes an adapter body 3.1. One end of the water outlet adapter 3 is provided with an outlet pipe 3.2, and the outlet pipe 3.2 is a straight pipe. The other end of the adapter body 3.1 is provided with a connecting column 3.3. In this embodiment, the inner diameter of the outlet pipe 3.2 is 6.5 mm, and the inner diameter of the connecting column 3.3 is 18.5 mm. The outer wall of the outlet end of the outlet pipe 3.2 is provided with several circles of corrugated protrusions 3.4. In this way, the design of the corrugated protrusions can increase the number of collisions of aerosol molecules compared with the straight tube design and accelerate the liquefaction speed. The outer wall of the connecting column 3.3 is provided with an external thread 3.5, and the water outlet 1.2 of the condensation conversion box 1 is provided with an internal thread matching the external thread 3.5. In this embodiment, the water outlet adapter is made of PP polypropylene material, and two types of straight-through and elbow-through are selected according to the shape of the connected device and the water outlet direction. The water outlet adapter realizes detachable connection through the cooperation of the external thread and the internal thread of the condensation conversion box 1.

[0050] The aerosol condensation converter of the external device maintenance type is designed and differentiated into two models, device maintenance type S and device maintenance type L, according to the size of the working head of the connected device. The size of the condensation conversion box of device maintenance type S is 41 mm in length, 31 mm in width, and 35 mm in height. The size of the condensation conversion box of device maintenance type L is 45 mm in length, 35 mm in width, and 35 mm in height. The purpose is to effectively fix the device head without wearing it during the process of insertion and removal, making the use process more convenient and labor-saving. The overall design direction focuses on the combination of hand and eye, which is not only convenient to use, but also can observe the water supply situation and changes, facilitating the correct preliminary judgment on the disinfection and maintenance of the instrument and equipment.

[0051] The working method of the aerosol condensation converter of the present invention includes the following processes:

[0052] (1) Dental unit waterway disinfection and maintenance: Before opening the clinic and after use, insert the water outlet sleeve of the dental unit equipment into the aerosol condensation converter, and step on the foot pedal for 30S for waterway maintenance. After use, unplug the aerosol condensation converter and rotate the condensation conversion box to separate it from the water outlet adapter.

[0053] (2) Dental unit water sample collection: Wipe the water outlet of the dental chair connection with 75% alcohol, connect the waterway disinfection sampling converter of the dental chair, and step on the foot pedal for 30S for water treatment, then water sample collection can be carried out.

[0054] (3) External equipment of the comprehensive treatment unit: After use of the high-speed and low-speed turbines (sandblasting guns, built-in ultrasonic therapy instruments), with the bur in the state, insert the sleeve into the aerosol condensation converter, and step on the foot pedal for 30S for waterway maintenance. After use, unplug the aerosol condensation converter and rotate the condensation conversion box to separate it from the water outlet adapter.

[0055] The working process of the aerosol condensation converter designed in the present invention is to limit the space of the water outlet of the dental unit waterway (the working end of the external connection equipment) after use, so that under the condition of installing the original working tip and operating instrument, it can move at high speed in the condensation box, and the combined water mist can wash out the bacteria residues remaining or aspirated in the equipment during the diagnosis and treatment process. The biological aerosol and spray generated under high-speed movement collide and gather multiple times in the combination box, condense and liquefy; and are output in the form of water flow from the movable water outlet through the action of gravity.

[0056] According to the classification of the risk levels of dental instruments, this design belongs to low-risk instruments (low-risk dental instruments refer to dental instruments that do not contact the patient's oral cavity or indirectly contact the patient's oral cavity, participate in oral diagnosis and treatment services, although there is microbial contamination, but are generally harmless, and only cause harm when contaminated by a certain amount of pathogenic microorganisms). The characteristics of each component meet the requirements for disinfection treatment of low-risk dental instruments after use. After use, rotate and disassemble it from the water outlet adapter interface, and promptly carry out running water flushing, soak it in chlorine-containing disinfectant for 30 min (soak it in multi-enzyme cleaning agent), and after drying and other treatments, clean it and place it for standby.

[0057] The above is only the specific implementation manner of the present invention. It should be noted that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. The rest not detailedly described is the prior art.

Claims

1. An aerosol condensation converter, characterized in that: It includes a condensation conversion box (1), on which there are a water inlet (1.1) and a water outlet (1.2). A device connector (2) is provided on the water inlet (1.1) of the condensation conversion box (1), and a cross-shaped opening (2.1) is formed on the device connector (2); a detachable water outlet adapter (3) is provided on the water outlet (1.2) of the condensation conversion box (1).

2. The aerosol condensation converter according to claim 1, characterized in that: The condensation conversion box (1) is in the shape of a cuboid or a cube, and the condensation conversion box (1) is a transparent structure made of a rigid material; both the water inlet (1.1) and the water outlet (1.2) are circular.

3. The aerosol condensation converter according to claim 2, wherein: The water inlet (1.1) and the water outlet (1.2) are arranged on two opposite sides of the condensation conversion box (1), and the surface where the water inlet (1.1) is located is arranged parallel to the surface where the water outlet (1.2) is located.

4. The aerosol condensation converter according to claim 2, characterized in that: The water inlet (1.1) and the water outlet (1.2) are arranged on two adjacent sides of the condensation conversion box (1), and the surface where the water inlet (1.1) is located is arranged at a right angle to the surface where the water outlet (1.2) is located.

5. The aerosol condensation converter according to claim 3 or 4, characterized in that: The device connector (2) includes a cover body (2.2) and a connecting head (2.3). A cross-shaped opening (2.1) is formed on the cover body (2.2), and the connecting head (2.3) of the device connector (2) can be embedded into the water inlet (1.1) and sealed and fixedly connected thereto.

6. The aerosol condensation converter according to claim 5, characterized in that: The device connector (2) is a flexible member made of silica gel material, and the diameter of the cover body (2.2) is larger than the diameter of the connecting head (2.3).

7. The aerosol condensation converter according to claim 3 or 4, characterized in that: The water outlet adapter (3) includes an adapter body (3.1). One end of the water outlet adapter (3) is provided with an outlet pipe (3.2), and the other end of the adapter body (3.1) is provided with a connecting column (3.3).

8. The aerosol condensation converter according to claim 7, characterized in that: Several circles of corrugated protrusions (3.4) are provided on the outer wall of the outlet end of the outlet pipe (3.2).

9. The aerosol condensation converter according to claim 8, characterized in that: External threads (3.5) are provided on the outer wall of the connecting column (3.3), and internal threads matching the external threads (3.5) are provided on the water outlet (1.2) of the condensation conversion box (1).

10. The aerosol condensation converter according to claim 7, characterized in that: The outlet pipe (3.2) is a straight pipe or a bent pipe.

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