Deep ultraviolet dental chair tail end sterilization device

Abstract

The invention relates to the technical field of dental chair sterilization devices, in particular to a deep ultraviolet dental chair tail end sterilization device which comprises a hollow shell, the shell is provided with a water inlet connector, an air inlet connector, a water outlet connector and an air outlet connector, the water inlet connector is connected with a water outlet pipe of a dental chair, and the air inlet connector is connected with an air outlet pipe of the dental chair. A transparent water pipe and a transparent air pipe are arranged in the shell, two ends of the transparent water pipe are connected with the water inlet and the water outlet respectively, and two ends of the transparent air pipe are connected with the air inlet and the air outlet respectively. An ultraviolet light source is arranged on the inner wall of the shell and used for sterilizing water flow and air in the transparent water pipe and the transparent air pipe. By arranging the transparent water pipe and the transparent air pipe, the ultraviolet light source can sterilize water flow and air at the same time, and the energy utilization efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dental chair sterilization, in particular to a deep ultraviolet dental chair terminal sterilization device. Background Art

[0002] The water and air systems of dental chairs are prone to biofilm growth after long-term use, causing excessive bacterial counts in the discharged water and compressed air, potentially leading to cross-infection among patients. Existing solutions include chemical disinfection and mid-stage ultraviolet sterilization, but these solutions have the following drawbacks:

[0003] 1. Chemical disinfection: Regular administration of drugs is required, as residual drugs may corrode the pipeline or cause irritation to the patient;

[0004] 2. Traditional UV sterilizer: Large in size, high in energy consumption, usually installed in the middle of the pipeline, unable to solve the secondary contamination at the end;

[0005] 3. Single medium processing: Existing equipment is only for water or gas circuits and cannot process both water and gas circuits at the same time. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solutions: A deep ultraviolet dental chair end sterilization device, comprising a hollow housing. The housing is provided with a water inlet interface, an air inlet interface, a water outlet interface, and an air outlet interface. A transparent water pipe and a transparent air pipe are provided within the housing, one end of the transparent water pipe is connected to the water inlet interface and the other end is connected to the water outlet interface, and one end of the transparent air pipe is connected to the air inlet interface and the other end is connected to the air outlet interface. An ultraviolet light source is provided on the inner wall of the housing;

[0007] A processing core electrically connected to the ultraviolet light source is arranged in the shell, and flow sensors electrically connected to the processing core are arranged in the transparent water pipe and the transparent air pipe.

[0008] Preferably, the ultraviolet light source is arranged around the transparent water pipe and the transparent air pipe.

[0009] Preferably, the ultraviolet light source is a deep ultraviolet light emitting diode, and the wavelength of the ultraviolet light source is 260-280NM.

[0010] Preferably, the housing is a corrosion-resistant housing.

[0011] Preferably, an aluminum film is provided on the inner wall of the shell.

[0012] Preferably, the transparent water pipe and the transparent air pipe are both spiral pipes.

[0013] Preferably, the transparent water pipe and the transparent air pipe are both quartz tubes with high light transmittance.

[0014] Preferably, a light intensity sensor electrically connected to the processing core is provided in the housing.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The device is connected to the end of the dental chair and is installed directly before the nozzle in front of the patient contact point, eliminating residual contamination of the pipeline. It also uses ultraviolet light for sterilization, further preventing the residue of sterilizing compounds in the pipeline.

[0017] 2. The present invention and its internal pipelines are modularly designed to facilitate subsequent replacement and maintenance;

[0018] 3. The transparent water pipe and the transparent air pipe are sterilized simultaneously by a single ultraviolet light source, which significantly improves energy efficiency compared to the common pipeline series tubular ultraviolet sterilizer solution that only sterilizes one pipeline at a time.

[0019] Other advantages, objects and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional view of the present invention;

[0021] Figure 2 is a cross-sectional view of a stereoscopic view of the present invention;

[0022] Figure 3 It is a sectional view of the main view of the present invention.

[0023] Explanation of the accompanying reference numerals: 1. Shell; 101. Water inlet interface; 102. Water outlet interface; 103. Air inlet interface; 104. Air outlet interface; 2. Transparent water pipe; 3. Transparent air pipe; 4. Ultraviolet light source. DETAILED DESCRIPTION

[0024] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 3The present invention provides a deep ultraviolet dental chair terminal sterilization device, which is connected to the end of the water outlet pipe and the air outlet pipe of the dental chair. It includes an internal hollow shell 1, and the shell 1 is provided with a water inlet interface 101, an air inlet interface 103, a water outlet interface 102 and an air outlet interface 104, so that the entire sterilization device becomes a modular device that can be independent of the dental chair. The air inlet interface 103 and the water inlet interface 101 adopt conventional existing technologies such as snap-on interfaces and threaded interfaces according to actual conditions to correspond to dental chairs of different models, brands and specifications, thereby enhancing the versatility of the present invention. The water outlet interface 102 and the air outlet interface 104 are used to connect to the corresponding nozzles, and the nozzles directly spray water and air into the patient's mouth. Therefore, the water outlet interface 102 and the air outlet interface 104 can also adopt conventional existing technologies such as snap-on interfaces and threaded interfaces to correspond to the nozzles to be used, so as to further improve the versatility of the present invention and adapt to nozzle equipment of different specifications, models and brands.

[0026] A transparent water pipe 2 and a transparent air pipe 3 are provided in the shell 1, one end of the transparent water pipe 2 is connected to the water inlet interface 101 and the other end is connected to the water outlet interface 102, one end of the transparent air pipe 3 is connected to the air inlet interface 103 and the other end is connected to the air outlet interface 104, and an ultraviolet light source 4 is provided on the inner wall of the shell 1; through the transparent water pipe 2 and the transparent air pipe 3, the ultraviolet light source 4 can be irradiated into the transparent water pipe 2 and the transparent air pipe 3, and the two ends of the transparent water pipe 2 are respectively connected to the water inlet interface 101 and the water outlet interface 102, and the two ends of the transparent air pipe 3 are respectively connected to the air inlet interface 103 and the air outlet interface 104, so that the transparent water pipe 2 and the transparent air pipe 3 inside the shell 1 are independent of the pipeline of the dental chair outside the shell 1, further improving the modular independence of the entire sterilization device, and making the pipeline inside the shell 1 also modular, which is convenient for replacement and maintenance of the pipeline inside the shell 1.

[0027] Housing 1 houses a processing core (not shown) electrically connected to UV light source 4. Both transparent water pipe 2 and transparent air pipe 3 are equipped with flow sensors (not shown) electrically connected to the processing core. The flow sensors enable the processing core to automatically control UV light source 4 based on the flow rate within transparent air pipe 3 or transparent water pipe 2. This maintains the sterilization effectiveness of UV light source 4 while conserving energy. For example, when the flow sensor detects low gas or water flow, the power of UV light source 4 is reduced.

[0028] Furthermore, in order to improve the sterilization efficiency of the ultraviolet light source 4, the ultraviolet light source 4 is arranged around the transparent water pipe 2 and the transparent air pipe 3, so that the transparent water pipe 2 and the transparent air pipe 3 are sterilized by the ultraviolet light source 4 without dead angles. According to actual conditions, the ultraviolet light source 4 can also be arranged in an array along the extension direction of the transparent water pipe 2 or the transparent air pipe 3 on the basis of the surrounding arrangement, so as to further improve the irradiation continuity of the ultraviolet light source 4. The ultraviolet light source 4 can adopt various conventional existing technologies that can emit ultraviolet rays. In this embodiment, the ultraviolet light source 4 is a deep ultraviolet light emitting diode. Specifically, the wavelength of the ultraviolet light source 4 is 260-280NM, which is used to ensure that the ultraviolet dose can reach 30mJ / cm 2 above.

[0029] Furthermore, the housing 1 is a corrosion-resistant housing for enhanced durability. Specifically, the corrosion-resistant housing comprises medical-grade 316L stainless steel, UV-stable polymer, or equivalent prior art materials.

[0030] Furthermore, in order to enhance the energy efficiency of the ultraviolet light source 4 , the inner wall of the housing 1 is plated with an aluminum film to enhance the reflectivity of ultraviolet rays, so that the light energy generated by the ultraviolet light source 4 can be fully utilized.

[0031] Furthermore, in order to keep the water or air in the housing 1 as long as possible while maintaining the same size, so that the ultraviolet light source 4 can fully sterilize, the transparent water pipe 2 and the transparent air pipe 3 are both spiral pipes for increasing the residence time of the water and air in the housing 1.

[0032] Furthermore, the transparent water pipe 2 and the transparent air pipe 3 can be made of conventional prior art such as transparent glass. In this embodiment, the transparent water pipe 2 and the transparent air pipe 3 are both quartz tubes with high light transmittance that are conducive to ultraviolet penetration, so that the ultraviolet rays can fully irradiate the water and gas in the quartz tubes.

[0033] Furthermore, a light intensity sensor electrically connected to the processing core is provided in the housing 1 for monitoring the ultraviolet light source 4 , so as to judge the damage of the ultraviolet light source 4 by monitoring the insufficient ultraviolet light intensity.

[0034] Furthermore, an independent power supply can be provided within the housing 1 to power the UV light source 4, processing core, flow sensor, and light intensity sensor, or a power cord can be provided to connect to an external power source. A master switch can be provided on the outer surface of the housing 1 to connect and control all devices within the housing 1. A communication module can also be provided to control the processing core via a remote control terminal to turn devices on and off. The external shape and internal space of the housing 1 can be freely selected without affecting the operation of the device. For example, the internal space of the housing 1 can be cylindrical, which makes it easier for the UV light source 4 to surround the transparent air tube 3 and transparent water tube 2.

[0035] Working principle: Install the transparent water pipe 2 and the transparent air pipe 3 in the housing 1, connect the water inlet interface 101 of the housing 1 to the water outlet pipe of the dental chair, and then connect the water outlet pipe of the dental chair to the water inlet of the transparent water pipe 2; connect the air inlet interface 103 of the housing 1 to the air outlet pipe of the dental chair, and then connect the air outlet pipe of the dental chair to the air inlet of the transparent air pipe 3. Depending on the actual situation, conventional technical means such as gaskets and adapters can be set between the water outlet pipe of the dental chair and the transparent water pipe 2 to improve the sealing between the water outlet pipe and the transparent water pipe 2. Auxiliary structures that enhance the sealing can also be set between the air outlet pipe and the transparent air pipe 3. Install appropriate nozzles at the water outlet interface 102 and the air outlet interface 104 of the housing 1, turn on the ultraviolet light source 4, and turn on the air supply switch or water supply switch of the dental chair. The processing core determines the water and gas flow rates based on the flow sensors and controls the irradiation intensity of the ultraviolet light source 4 according to a preset built-in program. This ensures that the water and gas, after being sterilized by ultraviolet light, are directly sprayed into the mouth of the patient using the dental chair through the nozzle device connected to the water outlet port 102 and the nozzle device connected to the gas outlet port 104. The processing core can also automatically activate the ultraviolet light source 4 based on monitoring by the flow sensors, achieving automated control.

[0036] On the basis of the above implementation scheme, the processors, modules, corresponding control programs, algorithm programs and other supporting technologies mentioned in the present invention can be implemented in combination with existing electrical technology, information technology, software technology and general protocols. They are not within the scope of protection required by the present invention and will not be described in detail in this application.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

Claims

1. A deep ultraviolet dental chair end sterilization device, characterized in that: The invention comprises a shell (1) with a hollow interior, wherein the shell (1) is provided with a water inlet interface (101), an air inlet interface (103), a water outlet interface (102) and an air outlet interface (104); a transparent water pipe (2) and a transparent air pipe (3) are provided inside the shell (1); one end of the transparent water pipe (2) is connected to the water inlet interface (101) and the other end is connected to the water outlet interface (102); one end of the transparent air pipe (3) is connected to the air inlet interface (103) and the other end is connected to the air outlet interface (104); an ultraviolet light source (4) is provided on the inner wall of the shell (1); A processing core electrically connected to the ultraviolet light source (4) is provided in the housing (1), and flow sensors electrically connected to the processing core are provided in both the transparent water pipe (2) and the transparent air pipe (3).

2. The deep ultraviolet dental chair terminal sterilization device according to claim 1, characterized in that: The ultraviolet light source (4) is arranged around the transparent water pipe (2) and the transparent air pipe (3).

3. The deep ultraviolet dental chair terminal sterilization device according to claim 2, characterized in that: The ultraviolet light source (4) is a deep ultraviolet light emitting diode, and the wavelength of the ultraviolet light source (4) is 260-280 nm.

4. The deep ultraviolet dental chair terminal sterilization device according to claim 1, characterized in that: The housing (1) is a corrosion-resistant housing.

5. The deep ultraviolet dental chair terminal sterilization device according to claim 1, characterized in that: The inner wall of the shell (1) is provided with an aluminum film.

6. The deep ultraviolet dental chair terminal sterilization device according to claim 1, characterized in that: The transparent water pipe (2) and the transparent air pipe (3) are both spiral pipes.

7. The deep ultraviolet dental chair terminal sterilization device according to claim 1, characterized in that: The transparent water pipe (2) and the transparent air pipe (3) are both quartz tubes with high light transmittance.

8. The deep ultraviolet dental chair terminal sterilization device according to claim 1, characterized in that: A light intensity sensor electrically connected to the processing core is provided in the housing (1).

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