222 nanometer magnetic compatible far ultraviolet sterilizer

Abstract

The 222-nanometer magnetic compatible far ultraviolet sterilizer comprises a sealing cover and a mounting box, the sealing cover is arranged on the mounting box, a cavity is formed in the sealing cover, a placement cavity is formed in the mounting box, and a high-intensity magnetic field shielding box is clamped between the bottom of the cavity and the bottom of the placement cavity; the high-intensity magnetic field shielding box is arranged in the placement cavity of the mounting box to seal the mainboard and the high-voltage inverter, then the whole sterilizer is mounted at the top of the magnetic resonance room for use, and the high-voltage inverter supplies power to the 222nm excimer lamp, so that the 222nm excimer lamp emits 222nm ultraviolet rays for sterilization, and the sterilization efficiency is improved. Main parts are arranged in a shielding cover through a high-intensity magnetic field shielding box, the influence of a high-intensity magnetic field on an internal circuit system is avoided or reduced, a shell of the whole sterilizer is made of a non-magnetic or low-magnetic material, the influence of the high-intensity magnetic field environment on the sterilizer is reduced, meanwhile, low-power design is adopted, the influence on a magnetic resonance power circuit is reduced, and energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical disinfection equipment, and in particular to a 222-nanometer magnetic-compatible far-ultraviolet disinfector. Background Art

[0002] Due to their unique structure, hospital MRI rooms lack effective ventilation and are considered a key vector for the spread of pathogenic microorganisms. Microorganisms or bioaerosol particles, as single cells, can easily spread through ambient air or attach to the human body through direct contact with contaminated surfaces. The average rate of microbial contamination exceeding standards for the air and surfaces within departmental MRI rooms is very high. MRI is a crucial department for patient examinations within hospitals, seeing patients with a variety of illnesses daily, especially those in the incubation period, who are a major source of infection. Furthermore, blood from open wounds and patient fluids, secretions, and excretions can contaminate the room environment. Sometimes, with so many patients being examined, there's not enough time to fully and thoroughly disinfect the room. Severely contaminated rooms can easily lead to cross-infection between patients and medical staff.

[0003] Recent research indicates that 222nm ultraviolet (UV222) cannot penetrate human tissue, making it an effective and safe wavelength for disinfection. This technology utilizes an excimer lamp with a dominant wavelength of 222nm, coupled with a special optical filter to filter out harmful wavelengths, providing antiviral and antibacterial properties. Filtered far-UVC, a monochromatic UV light source with a wavelength of 222nm, has been proposed as an effective disinfection technology for killing most microorganisms in the air or on any type of surface. Compared to other disinfection methods, 222nm UV offers advantages such as rapid effectiveness, no chemical residue, and ease of use. Furthermore, 222nm UV is safer than other common UVC light sources, such as UV-254nm. Direct exposure to conventional UV-254nm sources can be harmful to human skin and eyes, and may even cause carcinogenesis or cataracts. In contrast, 222nm UV cannot penetrate the epidermis or the outer layer of the eye, and therefore does not cause sunburn, skin cancer, or cataracts. It is a safe UV light source for the human body! In this regard, 222nm UV irradiation is considered a suitable disinfection technology for public spaces to limit the spread of pathogenic microorganisms. Used for air and surface disinfection, it enables human-machine coexistence disinfection, enhancing society's ability to respond to infectious diseases.

[0004] In summary, UV222 effectively kills a wide range of bacteria and viruses. Low doses of UV222 can achieve the same disinfection effect as traditional ultraviolet light. Furthermore, due to its limited ability to penetrate biological tissue, it does not harm basal cells of the skin or the eyes. Using UV222 within the currently permitted daily exposure safety threshold can effectively disinfect the surrounding environment while also ensuring human safety. It is a key method for real-time disinfection of air and surfaces in MRI rooms, preventing cross-infection between patients and medical staff.

[0005] However, conventional 222nm ultraviolet sterilizers cannot be used in magnetic resonance imaging rooms. Strong magnetic field environments may cause the sterilizer to malfunction or not work properly, and affect the imaging or normal operation of magnetic resonance imaging.

[0006] Therefore, it is necessary to provide a 222 nm magnetic-compatible far-ultraviolet sterilizer to solve the above technical problems. Summary of the Invention

[0007] The object of the present invention is to provide a 222 nm magnetically compatible far ultraviolet sterilizer to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a 222-nanometer magnetic-compatible far-ultraviolet sterilizer, comprising a cover and a mounting box, wherein the cover is arranged on the mounting box, a cavity is provided in the cover, a placement cavity is provided in the mounting box, a strong magnetic field shielding box is clamped between the bottom of the cavity and the bottom of the placement cavity, a cover is provided on the opening of the strong magnetic field shielding box, a mounting cavity is provided in the strong magnetic field shielding box, and three groups of mounting column groups are fixedly provided at the bottom of the mounting cavity, each group of the mounting column groups comprises four mounting columns, and the three groups of the mounting column groups are respectively equipped with a main board and a Two high-voltage inverters, the main board is used to control the operating procedures and power on and off of the entire sterilizer, a switch is provided on the main board, a through hole is provided on the side wall of the installation box, a button is provided in the through hole, the end of the button is in contact with the pressing column of the switch, both ends of the installation box are provided with inclined surfaces, a disinfection port is provided in the middle of the inclined surface, the disinfection port is connected to the placement cavity, two 222nm excimer lamps are provided in the placement cavity, the two 222nm excimer lamps are respectively provided opposite the two inclined surfaces, and the two 222nm excimer lamps are respectively electrically connected to the two high-voltage inverters.

[0009] As a preferred technical solution of the present invention, four first card blocks are provided at the bottom of the cavity, and four second card blocks are provided at the bottom of the placement cavity. The four second card blocks are respectively arranged opposite to the four first card blocks, and the edges of the first card blocks and the second card blocks are both chamfered. The strong magnetic field shielding box is clamped between the four first card blocks and the four second card blocks.

[0010] As a preferred technical solution of the present invention, a third threaded hole is provided at the center of the top of the mounting column, and holes are provided on the main board at the positions opposite the third threaded holes of the four mounting columns, and screws are provided in the holes. The screws pass through the main board and are screwed into the third threaded holes to lock and fix it. Holes are provided on the high-voltage inverter at the positions opposite the third threaded holes of the four mounting columns, and screws are provided in the holes. The screws pass through the high-voltage inverter and are screwed into the third threaded holes to lock and fix it.

[0011] As a preferred technical solution of the present invention, a through hole is provided on the front of the strong magnetic field shielding box, the pressing column of the switch passes through the through hole and extends to the outside of the strong magnetic field shielding box, and two card strips are provided on the side wall of the placement cavity, and the two card strips are respectively located on both sides of the through hole, and the button is slidably arranged in the two card strips.

[0012] As a preferred technical solution of the present invention, a plurality of elongated holes are opened on both side walls of the strong magnetic field shielding box, and the elongated holes are communicated with the installation cavity.

[0013] As a preferred technical solution of the present invention, two second threaded holes are provided at a position opposite to the inclined surface in the placement cavity, and the two second threaded holes are diagonally distributed. A hole is provided on the 222nm excimer lamp at a position opposite to the two second threaded holes, and a screw is provided in the hole. The screw passes through the hole and is screwed into the second threaded hole to lock and fix the 222nm excimer lamp. The light-emitting plate of the 222nm excimer lamp is facing the disinfection port.

[0014] As a preferred technical solution of the present invention, a heat dissipation hole is provided at the bottom of the cavity of the cover, and four lugs are provided at the outer edge of the cover, each of which has a locking hole.

[0015] As a preferred technical solution of the present invention, six first fixing blocks are evenly arranged at the bottom of the cavity, the first fixing blocks are semicircular columnar structures, and countersunk holes are arranged on the first fixing blocks. Six second fixing blocks are evenly arranged at the bottom of the placement cavity, the second fixing blocks are semicircular columnar structures, and first threaded holes are arranged on the second fixing blocks. The six first threaded holes are respectively opened opposite to the six countersunk holes. Locking screws are arranged in the countersunk holes, and the threaded part of the locking screw passes through the countersunk holes and is screwed into the first threaded holes. The cover and the mounting box are made of non-magnetic or low-magnetic materials.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention discloses a 222nm magnetically compatible far-ultraviolet sterilizer. The present invention provides a strong magnetic field shielding box in the placement cavity of the installation box to enclose the mainboard and the high-voltage inverter. The strong magnetic field shielding box is clamped and fixed by the first clamping block of the cover and the second clamping block of the installation box. The entire sterilizer is then installed on the top of the magnetic resonance room for use. The 222nm excimer lamp is powered by the high-voltage inverter so that the 222nm excimer lamp emits 222nm ultraviolet rays for disinfection. The main components (control mainboard, high-voltage inverter, etc.) are placed in the shielding cover through the strong magnetic field shielding box to avoid or reduce the influence of the strong magnetic field on the internal circuit system. The entire sterilizer shell and internal components are made of non-magnetic or low-magnetic materials to reduce the influence of the strong magnetic field environment on the sterilizer. At the same time, a low-power design is adopted to reduce the influence on the magnetic resonance power supply circuit and achieve energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] Figure 1 This is a front view of the overall structure of the present invention;

[0020] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 3 This is a three-dimensional exploded schematic diagram of the overall structure of the present invention;

[0022] Figure 4 It is a three-dimensional exploded axonometric view of the overall structure of the present invention;

[0023] Figure 5 is a three-dimensional schematic diagram of the sealing structure of the present invention;

[0024] Figure 6 It is a three-dimensional schematic diagram of the installation box structure of the present invention;

[0025] Figure 7 It is a three-dimensional schematic diagram of the strong magnetic field shielding box structure of the present invention.

[0026] In the figure: 1. Cover; 101. Cavity; 102. First fixing block; 103. Countersunk hole; 104. First clamping block; 105. Chamfer; 106. Lug; 107. Locking hole; 108. Heat dissipation hole; 2. Mounting box; 201. Placement cavity; 202. Inclined surface; 203. Disinfection port; 204. Second fixing block; 205. First threaded hole; 206. Second clamping block; 207. Clamping strip; 208. Through hole; 209. Second threaded hole; 3. Strong magnetic field shielding box; 301. Mounting cavity; 302. Mounting column; 303. Third threaded hole; 304. Long hole; 305. Through hole; 4. Cover plate; 5. Main board; 6. High-voltage inverter; 7. 222nm excimer lamp; 8. Switch; 9. Button. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described below with reference to the accompanying drawings. In the process, to ensure clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0028] In addition, the following terms are defined based on the functions of the present invention and may vary depending on the intentions or practices of the user or operator. Therefore, these terms are defined based on the entire content of this specification.

[0029] like Figures 1 to 7 As shown, a 222 nanometer magnetic-compatible far-ultraviolet sterilizer includes a cover 1 and an installation box 2, a cavity 101 is provided in the cover 1, six first fixing blocks 102 are evenly provided at the bottom of the cavity 101, the first fixing block 102 is a semicircular columnar structure, and a countersunk hole 103 is provided on the first fixing block 102, a placement cavity 201 is provided in the installation box 2, six second fixing blocks 204 are evenly provided at the bottom of the placement cavity 201, the second fixing block 204 is a semicircular columnar structure, and a first threaded hole 205 is provided on the second fixing block 204, the six first threaded holes 205 are respectively opened opposite to the six countersunk holes 103, and a locking screw is provided in the countersunk hole 103, the threaded portion of the locking screw passes through the countersunk hole 103 and is screwed into the first threaded hole 205, and the cover 1 and the installation box 2 are locked together by the six locking screws, and the cover 1 and the installation box 2 are made of non-magnetic or low-magnetic material.

[0030] like Figures 3 to 6As shown, four first clamping blocks 104 are provided at the bottom of the cavity 101, and four second clamping blocks 206 are provided at the bottom of the placement cavity 201. The four second clamping blocks 206 are respectively arranged opposite to the four first clamping blocks 104. The edges of the first clamping blocks 104 and the second clamping blocks 206 are provided with chamfers 105 to facilitate the clamping of components. A strong magnetic field shielding box 3 is clamped between the four first clamping blocks 104 and the four second clamping blocks 206. A cover plate 4 is provided on the opening of the strong magnetic field shielding box 3. An installation cavity 301 is provided in the strong magnetic field shielding box 3. Three groups of installation column groups are fixedly provided at the bottom of the installation cavity 301. Each group of the installation column groups includes four installation columns 302. A third threaded hole 303 is provided at the top center of the installation column 302. A main board 5 and two high-voltage inverters 6 are respectively installed on the three groups of the installation column groups. The main board 5 is used to control the operation program and power on and off of the entire sterilizer. The main board 5 is opposite to the four installation columns. Holes are provided at the third threaded holes 303 of 302, and screws are passed through the mainboard 5 to be screwed into the third threaded holes 303 to lock and fix them. Holes are provided at the third threaded holes 303 of the four mounting columns 302 on the high-voltage inverter 6, and screws are passed through the high-voltage inverter 6 to be screwed into the third threaded holes 303 to lock and fix them. A switch 8 is provided on the mainboard 5, and a through hole 305 is provided on the front of the strong magnetic field shielding box 3. The pressing column of the switch 8 passes through the through hole 305 and extends to the outside of the strong magnetic field shielding box 3. A through hole 208 is provided on the side wall of the installation box 2, and two clips 207 are provided on the side wall of the placement cavity 201. The two clips 207 are respectively located on both sides of the through hole 208. A button 9 is provided in the through hole 208, and the button 9 is slidably set in the two clips 207. The end of the button 9 abuts against the pressing column of the switch 8. The switch 8 is turned on and off by pressing the button 9 to realize the opening and closing of the sterilizer.

[0031] like Figure 7 As shown, a plurality of elongated holes 304 are provided on both side walls of the strong magnetic field shielding box 3 , and the elongated holes 304 are interconnected with the mounting cavity 301 , playing a heat dissipation role, effectively protecting various components in the mounting cavity 301 and preventing the components from being damaged by overheating.

[0032] like Figure 3 and Figure 6As shown, both ends of the installation box 2 are provided with inclined surfaces 202, and a disinfection port 203 is provided in the middle of the inclined surface 202. The disinfection port 203 is communicated with the placement cavity 201. Two second threaded holes 209 are provided at positions opposite to the inclined surface 202 in the placement cavity 201. The two second threaded holes 209 are diagonally distributed. Two 222nm excimer lamps 7 are provided in the placement cavity 201. The two 222nm excimer lamps 7 are respectively provided opposite to the two inclined surfaces 202. Holes are opened at the positions of the two second threaded holes 209, and screws are passed through the holes and screwed into the second threaded holes 209 to lock and fix the 222nm excimer lamp 7 so that the light-emitting plate of the 222nm excimer lamp 7 is facing the disinfection port 203. The two 222nm excimer lamps 7 are electrically connected to the two high-voltage inverters 6 respectively, and the 222nm excimer lamps 7 are powered by the high-voltage inverter 6 to work. The 222nm excimer lamp 7 emits 222nm ultraviolet rays through the disinfection port 203 to disinfect and sterilize the outside.

[0033] like Figure 5 As shown, a heat dissipation hole 108 is provided at the bottom of the cavity 101 of the cover 1, and four lugs 106 are provided on the outer edge of the cover 1. A locking hole 107 is provided on the lug 106. The screw is passed through the locking hole 107 and screwed into the top of the magnetic resonance chamber to lock and fix the sterilizer.

[0034] The specific implementation method is as follows: a strong magnetic field shielding box 3 is set in the placement cavity 201 of the installation box 2 to enclose the main board 5 and the high-voltage inverter 6, and the strong magnetic field shielding box 3 is clamped and fixed by the first clamping block 104 of the cover 1 and the second clamping block 206 of the installation box 2. Then the entire sterilizer is installed on the top of the magnetic resonance room for use, and the 222nm excimer lamp 7 is powered by the high-voltage inverter 6, so that the 222nm excimer lamp 7 emits 222nm ultraviolet rays for disinfection. UV222 can effectively kill a variety of bacteria and viruses. A low dose of UV222 can achieve the same disinfection effect as traditional ultraviolet rays. At the same time, due to its limited ability to penetrate biological tissues, it will not It causes damage to the basal cells of the skin and the eyes. Using UV222 within the currently allowed daily exposure safety threshold can effectively disinfect the surrounding environment while taking into account human safety. It is an important method for the magnetic resonance room to solve the real-time disinfection of air and surfaces, and effectively prevent cross-infection between patients and medical staff. The main components (mainboard 5, high-voltage inverter 6, etc.) are placed in the shielding cover through the strong magnetic field shielding box 3 to avoid or reduce the impact of strong magnetic fields on the internal circuit system. The entire sterilizer shell and internal components use non-magnetic or low-magnetic materials to reduce the impact of strong magnetic field environment on the sterilizer. At the same time, a low-power design is adopted to reduce the impact on the magnetic resonance power supply circuit and achieve energy saving and emission reduction.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A 222 nm magnetically compatible far ultraviolet sterilizer, comprising a cover (1) and a mounting box (2), wherein the cover (1) is arranged on the mounting box (2), and is characterized in that: The sealing cover (1) is provided with a cavity (101), the installation box (2) is provided with a placement cavity (201), a strong magnetic field shielding box (3) is clamped between the bottom of the cavity (101) and the bottom of the placement cavity (201), a cover plate (4) is provided on the opening of the strong magnetic field shielding box (3), an installation cavity (301) is provided in the strong magnetic field shielding box (3), three groups of installation column groups are fixedly provided at the bottom of the installation cavity (301), each group of the installation column groups includes four installation columns (302), and a main board (5) and two high-voltage inverters (6) are respectively installed on the three groups of the installation column groups, the main board (5) is used to control the operation program and power on and off of the entire sterilizer, and the main board (5) A switch (8) is provided on the top, a through hole (208) is provided on the side wall of the installation box (2), a button (9) is provided in the through hole (208), the end of the button (9) is in contact with the pressing column of the switch (8), both ends of the installation box (2) are provided with inclined surfaces (202), a disinfection port (203) is provided in the middle of the inclined surface (202), the disinfection port (203) is communicated with the placement cavity (201), two 222nm excimer lamps (7) are provided in the placement cavity (201), the two 222nm excimer lamps (7) are respectively provided opposite to the two inclined surfaces (202), and the two 222nm excimer lamps (7) are respectively electrically connected to two high-voltage inverters (6).

2. A 222 nm magnetically compatible far ultraviolet sterilizer according to claim 1, characterized in that: Four first clamping blocks (104) are provided at the bottom of the cavity (101), and four second clamping blocks (206) are provided at the bottom of the placement cavity (201). The four second clamping blocks (206) are respectively arranged opposite to the four first clamping blocks (104). The edges of the first clamping blocks (104) and the second clamping blocks (206) are both provided with chamfers (105). The strong magnetic field shielding box (3) is clamped between the four first clamping blocks (104) and the four second clamping blocks (206).

3. A 222 nm magnetically compatible far ultraviolet sterilizer according to claim 1, characterized in that: A third threaded hole (303) is provided at the center of the top of the mounting column (302), and holes are provided on the main board (5) at the third threaded holes (303) of the four mounting columns (302), wherein screws are provided in the holes, and the screws pass through the main board (5) and are screwed into the third threaded holes (303) to lock and fix the main board (5), and holes are provided on the high-voltage inverter (6) at the third threaded holes (303) of the four mounting columns (302), wherein screws are provided in the holes, and the screws pass through the high-voltage inverter (6) and are screwed into the third threaded holes (303) to lock and fix the main board (5).

4. The 222 nm magnetically compatible far-ultraviolet sterilizer according to claim 1, characterized in that: The front of the strong magnetic field shielding box (3) is provided with a through hole (305), the pressing column of the switch (8) passes through the through hole (305) and extends to the outside of the strong magnetic field shielding box (3), two clamping strips (207) are provided on the side wall of the placement cavity (201), the two clamping strips (207) are respectively located on both sides of the through hole (208), and the button (9) is slidably arranged in the two clamping strips (207).

5. The 222 nm magnetically compatible far-ultraviolet sterilizer according to claim 1, characterized in that: A plurality of elongated holes (304) are provided on both side walls of the strong magnetic field shielding box (3), and the elongated holes (304) are communicated with the installation cavity (301).

6. The 222 nm magnetically compatible far-ultraviolet sterilizer according to claim 1, characterized in that: Two second threaded holes (209) are provided in the placement cavity (201) at positions facing the inclined surface (202), and the two second threaded holes (209) are diagonally distributed. A hole is provided on the 222nm excimer lamp (7) at a position facing the two second threaded holes (209), and a screw is provided in the hole. The screw passes through the hole and is screwed into the second threaded hole (209) to lock and fix the 222nm excimer lamp (7), and the light-emitting plate of the 222nm excimer lamp (7) faces the disinfection port (203).

7. The 222 nm magnetically compatible far-ultraviolet sterilizer according to claim 1, characterized in that: The bottom of the cavity (101) of the cover (1) is provided with a heat dissipation hole (108), and the outer edge of the cover (1) is provided with four lugs (106), and the lugs (106) are provided with locking holes (107).

8. The 222 nm magnetically compatible far-ultraviolet sterilizer according to claim 1, characterized in that: Six first fixing blocks (102) are evenly arranged at the bottom of the cavity (101), the first fixing blocks (102) are semicircular columnar structures, and the first fixing blocks (102) are provided with countersunk holes (103). Six second fixing blocks (204) are evenly arranged at the bottom of the placement cavity (201), the second fixing blocks (204) are semicircular columnar structures, and the second fixing blocks (204) are provided with first threaded holes (205). The six first threaded holes (205) are respectively opened opposite to the six countersunk holes (103). Locking screws are arranged in the countersunk holes (103), and the threaded portion of the locking screw passes through the countersunk holes (103) and is screwed into the first threaded holes (205). The cover (1) and the installation box (2) are made of non-magnetic or low-magnetic materials.

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