CN104548182A - Ultraviolet-infrared two-waveband semiconductor laser quick sterilization system used for indoor air sterilization of medical cabin - Google Patents
Ultraviolet-infrared two-waveband semiconductor laser quick sterilization system used for indoor air sterilization of medical cabin Download PDFInfo
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- CN104548182A CN104548182A CN201410834092.3A CN201410834092A CN104548182A CN 104548182 A CN104548182 A CN 104548182A CN 201410834092 A CN201410834092 A CN 201410834092A CN 104548182 A CN104548182 A CN 104548182A
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Abstract
The invention provides an ultraviolet-infrared two-waveband semiconductor laser quick sterilization system used for indoor air sterilization of a medical cabin. The ultraviolet-infrared two-waveband semiconductor laser quick sterilization system comprises an infrared semiconductor laser unit, an ultraviolet semiconductor laser unit, an optical fiber collimator and the like. The sterilization system has the advantages of small size, light weight, high reliability, high all-dimensional scanning speed, high electro-optical conversion efficiency, high bacteria killing efficiency and the like, and has the potential of wide application.
Description
Technical field
The invention belongs to laser sterilization technology, specifically refer to a kind of handheld portable semiconductor laser quick sterilization system for medical chamber disinfection of indoor air based on ultraviolet and infrared double-waveband.
Background technology
Along with the development of modern emergency medicine, the comprehensive diagnoses and treatment of critical patients gets more and more, and treatment success rate is also improving constantly.But the continuous appearance of antibiotic extensive use and Resistant strain, hospital infection has become the major issue that medical circle is paid close attention to.
The medical cabin of relative closure, as hospital intensive care room (intensive care unit, ICU), operating room, medical at sea ship cabin, San Tn, ambulance compartment etc. are undertaken Cavity in Critical Patients and are rescued important medical space, have very high requirement to cabin room air is degerming fast.There is the features such as the state of an illness is heavy, infection rate is high, acceptance has wound emergency measures many in the patient accepted for medical treatment due to these medical cabins, comparatively public ward is high 3 ~ 18 times to make the prevalence of its hospital infection, close to 50%.According to updated statistics, Nei Ge great section office of hospital intensive care unit, the particularly intensive care unit concentrated of the severe crisis patient such as neurosurgical ICU, ICU ward, the serious respiratory tract infection caused due to nosocomial infection's (kainogenesis after being admitted to hospital, contact the infection that pathogen causes in hospital become nosocomial infection) becomes and causes conditions of patients to worsen one of even dead major reason.
The pathogen propagated in air causes the major reason that (as intensive care unit, field medicine cabin etc.) in same relative confined space treats the several wounded simultaneously, patient intersects acquisition respiratory tract infection.And solve the medical chamber room air substance that spreads disease and cause anti-infective problem, the conventional way adopted mainly contains the aggregate measures such as chemical agent sterilization, Ultraluminescence irradiation, air filtration at present.But under contingency condition, the rescue and treatment of the wounded is pressed for time, workload is large, condition is limited, often because sterilizing installation is huge heavy, chemical agent carries limited amount, and the above method all needs the long period could onset, does not reach sterilization requirement.At hospital intensive care unit, add personnel, patient circulates frequently, rely on the aseptic condition that existing method (mainly ultraviolet lighting and air filtration) is difficult to maintain higher level.The wherein irradiation time long (generally more than 30 minutes) of Ultraluminescence sterilizing methods needs, range of exposures diversity is too large, need during irradiation to empty indoor occupant, be applicable to working time section, the medical space that volume of the circular flow is little, be not suitable for patient's holdup times such as ICU long, cannot the idle place for sterilizing for a long time.Airfiltering method cannot reach sterilization effect, and the stability of filter effect is not good.Therefore the equipment of a kind of high efficiency medical treatment cabin quick sterilization becomes the urgent needs in medical practice.
Laser sterilization technology is received attention by medical product research and development field compared with the advantage of ordinary optical sterilization technology, but current laser sterilization technology mainly adopts CO
2laser, iraser efficiency is low, bulky, not easily fiber-optic transfer, operation inconvenience and wavelength is single, and sterilizing efficiency is not high, restricted application.
Summary of the invention
The object of the present invention is to provide a kind of Portable ultraviolet for medical chamber disinfection of indoor air-infrared double-waveband semiconductor laser quick sterilization system, overcome that existing conventional physical chemistry sterilizing and disinfection technology sterilizing are killed thoroughly sex pheromone in air, speed is slow, efficiency is low, the huge problem such as heavy of equipment, realize adopting multiband (infrared and ultraviolet) laser synchronization, fast, carrying out automatic high-efficiency sterilizing to cabin room air easily.
Object of the present invention is achieved through the following technical solutions:
For a ultraviolet-infrared dual band semiconductor laser quick sterilization system for medical chamber disinfection of indoor air, it is characterized in that: comprise infrared semiconductor laser, UV laser diode, optical fiber collimator; Wherein
Infrared semiconductor laser: for generation of infrared band laser;
UV laser diode: produce ultraviolet band laser;
Optical fiber collimator: the laser for infrared semiconductor laser or UV laser diode being produced passes through coupling fiber, and the less parallel Gaussian beam making coupled light beam formation have certain spot diameter size exports.
Infrared semiconductor laser is as infrared laser light source, its output is that 0 ~ 50W is adjustable, output wavelength is 808nm ~ 980nm, power swing < 2%p-p, centre wavelength deviation < ± 3nm, spectral width < 3nm, iraser is coupled into optical fiber after collimation, is exported by optical fiber.
UV laser diode is as Ultra-Violet Laser light source, its output is that 0 ~ 150mW is adjustable, output wavelength is 375nm, power swing < 1%p-p, centre wavelength deviation < ± 3nm, spectral width < 3nm, Ultra-Violet Laser is coupled into optical fiber after collimation, is exported by optical fiber.
Optical fiber collimator becomes cylindrical, comprise tail optical fiber, cylindrical shell, spherical lens, with infrared semiconductor laser or the welding of ultraviolet semiconductor lasers output optical fibre phase, laser for infrared semiconductor laser or UV laser diode being produced forms the less parallel Gaussian beam with certain spot diameter size (5mm ~ 10mm) and exports, beam divergence angle < 18mrad.UV laser diode and infrared semiconductor laser are furnished with optical fiber collimator respectively, realize dispersing of laser and regulate with direction, make region of ultra-red and ultraviolet region overlap.And, because optical fiber is flexible, by optical fiber collimator laser output, can by the infrared any corner being irradiated to medical chamber indoor with UV laser beam according to arbitrarily angled scanning.
Described optical fiber collimator comprises a cylindrical shell, one end of cylindrical shell is provided with spherical lens by end cap, the other end is provided with mouthpiece, a grade washer is installed between mouthpiece and cylindrical shell, mouthpiece inside is provided with the metal ferrules of an inner hollow, the outer cover of mouthpiece is equipped with a trocar sheath by a reducer pipe fixed fiber, and the end of optical fiber is coaxially fixedly connected with metal ferrules by coaxial connector.The end of optical fiber is fixed and increases its diameter by reducer pipe, be convenient to the operation of hands and the installation of other parts, reducer pipe is fixed on outside mouthpiece by trocar sheath, the inside of reducer pipe is reducing cavity, a metal ferrules is installed in mouthpiece, the inner hollow of metal ferrules is as the passage of light path, by the end of optical fiber being fixed with the coaxial connector of this channel coaxial, the output axis of optical fiber and the axis of metal ferrules is made to be positioned at same straight line, thus the output light path of optical fiber is sent to cylindrical shell, adopt the mode of installing grade washer between mouthpiece and cylindrical shell, make to form angle between the axis of cylindrical shell and the axis of metal ferrules, certain angle is there is between the incident angle of laser and the photocentre of spherical lens, laser can be made to disperse, form large-area scanning area, thus expand the radius of scanning.
Described coaxial connector and the end face of Fiber connection are along tapered of its axis concave shaped.By the end face of coaxial connector being arranged to the taper surface structure of indent, when installation, guiding function can being played to optical fiber, making optical fiber and metal ferrules automatic centering, improve the speed to the heart, reduce installation difficulty.
Native system also comprises: zoom coupled lens group: expand the light beam exported through optical fiber collimator collimation and export;
Infrared beam flying tilting mirror: rotate according to certain angle, reflect the infrared laser beam after zoom coupled lens group expands in cabin; Ultraviolet light beam scanning mirror: rotate according to certain angle, transmission infrared laser beam, and the UV laser beam of reflection after zoom coupled lens group expands is in cabin.
The minute surface of described infrared beam flying tilting mirror is coated with 808nm ~ 980nm broadband and is all-trans film, its reflectance > 99.9%.The minute surface of described ultraviolet light beam scanning mirror plates 808nm ~ 980nm broadband infrared anti-reflection film, 266nm ~ 380nm broadband ultraviolet is all-trans film, its UV light reflectivity > 99.9%.
Infrared band laser bundle and ultraviolet band laser bundle are exported by optical fiber collimator collimation by the present invention, then carry out being coupled through zoom coupled lens group and adjust diameter and the power density of hot spot, finally by the reflection of infrared beam flying tilting mirror and ultraviolet light beam scanning mirror, forming sterilization face irradiates in medical chamber body, through the radiation of certain hour, the antibacterial in medical chamber room air can be eliminated completely, system of the present invention in terms of existing technologies, one is the synchronous laser irradiation of employing two kinds of sensitive bacteria wave bands, make the laser of different-waveband with different sterilization mechanism simultaneously for target bacteria, the efficiency of kill bacteria can be increased, two is adopt LASER Light Source, and power and the more traditional fluorescence germicidal light source of power density achieve larger lifting, and sterilization speed is faster, three is that electro-optical efficiency is high, and volume is little, lightweight, is easy to carry and performs various emergency medical service task, four is that fibre system can bend and deviation, and reliability is strong, flexible and convenient to use and the life-span is long, five is that zoom coupled lens group can regulate spot size and power density, can meet the sterilizing needs of different occasion, six is use rotating mirror system to carry out wide-angle scanning to medical cabin or irregular sterilized space, and its killing bacteria efficiency is high, seven is can carry out sterilization treatment in conjunction with air circulation device in cabin (as air suction and escaper or air filter) to the air of suction apparatus inside, not affecting while medical related personnel stops and work in cabin, endlessly cabin internal contamination air suction device being treated to filtrated air and being discharged into again in cabin.Being applied under various modes and occasion, in the preventing and curing infection field of airborne disease, significant contribution can being made for reducing lethal disability rate.
Described quick sterilization system can also for the preparation of sterile air, and described medical chamber indoor are provided with air suction and escaper.
Beneficial effect
1. the invention provides a kind of two waveband semiconductor laser air quick sterilization technology, intend coupling iraser and Ultra-Violet Laser, both there is penetrance and heat effect carries out heat kill wound to pathogen, there is again high photon energy carry out ionization to pathogen and kill and wound, the advantages such as sterilizing speed is fast, efficiency is high, use cost is low, portability is strong, can meet the infection demand in medical cabin.
2. the present invention's multiband semiconductor laser of adopting coupling fiber to export, laser module heat radiation is simple, can be directly air-cooled; Power and electro-optical efficiency high, energy-conservation, volume is little, lightweight, and optical fiber can bend and deviation, and reliability is strong, can carry out sterilization treatment while not interrupting curative activity to workplace air, improves medical efficiency, reduces infection rate.
3. the present invention is convenient for carrying, and simple placement can use, and reusable, does not contact human body, does not also produce significantly direct or indirect impact to human body, is convenient to realize.The demand of the multiple application places such as the car and boat medical chamber of hospital intensive care room and emergency rescue mission at ordinary times can be met, contain vast customer group.
Accompanying drawing explanation
Fig. 1 is embodiment 1 theory diagram: 21-infrared semiconductor laser, 22-ultraviolet semiconductor lasers body, 23-optical collimator, 31-tail optical fiber, 32-cylindrical shell, 9-spherical lens, 28-suction and escaper, 29-gas storage space;
Fig. 2 is the structural representation partly cutd open of optical fiber collimator of the present invention: 1-end cap, 2-grade washer, 3-mouthpiece, 4-metal ferrules, 5-coaxial connector, 6-trocar sheath, 7-reducer pipe, 8-optical fiber, 9-spherical lens, 10-infrared semiconductor laser, 11-UV laser diode, 12-optical fiber collimator.
Fig. 3 is the theory diagram of embodiment 2: 21-infrared semiconductor laser, 22-ultraviolet semiconductor lasers body, 23-optical collimator, 24-zoom coupled lens group, 25-beam flying tilting mirror, 30-medical treatment cabin.
Detailed description of the invention
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, a kind of ultraviolet-infrared dual band semiconductor laser quick sterilization system for medical chamber disinfection of indoor air of the present invention, comprises infrared semiconductor laser, UV laser diode, optical fiber collimator, scanning mirror and medical chamber room air and absorbs exhaust system; Wherein infrared semiconductor laser comprises: infrared semiconductor laser 1 selects infrared semiconductor laser as LASER Light Source, its output is that 0 ~ 50W is adjustable, output wavelength is that 808nm ~ 980nm is optional, power swing < 2%p-p, centre wavelength deviation < ± 3nm, spectral width < 3nm, iraser is coupled into optical fiber after collimation, exported by optical fiber, fiber numerical aperture NA=0.22, core diameter=200 μm, length is 1.0m; UV laser diode 2 selects UV laser diode as LASER Light Source, its output is that 0 ~ 150mW is adjustable, output wavelength is 375nm, power swing < 1%p-p, centre wavelength deviation < ± 3nm, spectral width < 3nm, Ultra-Violet Laser is coupled into optical fiber after collimation, is exported, fiber numerical aperture NA=0.22 by optical fiber, core diameter=200 μm, length is 1.0m; Optical fiber collimator 3 one-tenth is cylindrical, disc external diameter size is 20mm, length is 30mm, with tail optical fiber, with infrared semiconductor laser or the welding of ultraviolet semiconductor lasers output optical fibre phase, laser for infrared semiconductor laser or UV laser diode being produced forms the less parallel Gaussian beam with certain spot diameter size (5mm ~ 10mm) and exports, beam divergence angle < 18mrad; By optical fiber collimator 3 laser output, because optical fiber is flexible, synchronous scanning irradiation can be carried out with UV laser beam according to arbitrarily angled by infrared.
Optical fiber 8 is input to optical fiber collimator 12, optical fiber collimator 12 structural representation as shown in Figure 2, spherical lens 9 is fixed on one end of cylindrical shell 14 by end cap 1, the other end of cylindrical shell 14 is provided with mouthpiece 3, a grade washer 2 is installed between mouthpiece 3 and cylindrical shell 14, mouthpiece 3 inside is provided with the metal ferrules 4 of an inner hollow, tapered of the end face concave shaped of metal ferrules 4, the outer cover of mouthpiece 3 is equipped with a trocar sheath 6 by reducer pipe 7 fixed fiber 8, and the end of optical fiber 8 is coaxially fixedly connected with metal ferrules 4 by coaxial connector 5, the end of optical fiber 8 is fixed and increases its diameter by reducer pipe 7, be convenient to the operation of hands and the installation of other parts, reducer pipe 7 is fixed on outside mouthpiece 3 by trocar sheath 6, the inside of reducer pipe 7 is reducing cavity, a metal ferrules 4 is installed in mouthpiece 7, the inner hollow of metal ferrules 4 is as the passage of light path, by the end of optical fiber 8 being fixed with the coaxial connector 5 of this channel coaxial, the output axis of optical fiber 8 and the axis of metal ferrules 4 is made to be positioned at same straight line, thus the output light path of optical fiber 8 is sent to cylindrical shell 14, adopt the mode of installing grade washer 2 between mouthpiece 3 and cylindrical shell 14, make to form angle between the axis of the axis of cylindrical shell 14 and metal ferrules 4, certain angle is there is between the incident angle of laser and the photocentre of spherical lens, laser can be made to disperse, synchronous scanning irradiation can be carried out with UV laser beam according to arbitrarily angled by infrared.Native system is with air suction and escaper 28, not affecting while medical related personnel stops and work in cabin, endlessly cabin internal contamination air suction device (29-gas storage space) being treated to filtrated air and being discharged into again in cabin.
This device has that volume is little, lightweight, reliability is strong, comprehensive scanning speed is fast, electro-optical efficiency and killing bacteria efficiency high, do not interrupt the advantages such as curative activity, there are the potentiality of extensive use.
Embodiment 2
As shown in Figure 3, the present invention is used for the rotating mirror scanning formula two waveband semiconductor laser quick sterilization system of medical chamber room air, comprises infrared semiconductor laser 21, UV laser diode 22, optical fiber collimator 23, zoom coupled lens group 24, ultraviolet light beam scanning mirror 25 and infrared beam flying tilting mirror 26, wherein infrared semiconductor laser 21 is as infrared laser light source, its output is that 0 ~ 50W is adjustable, output wavelength is that 808nm ~ 980nm is optional, power swing < 2%p-p, centre wavelength deviation < ± 3nm, spectral width < 3nm, the seed light beam that infrared semiconductor laser 21 produces is coupled into optical fiber after collimation, then optical fiber collimator 23 is transported to, zoom coupled lens group 24 is exported to by optical fiber collimator, fiber numerical aperture NA=0.22, core diameter=200 μm, length is 1.0m, UV laser diode 22 is as Ultra-Violet Laser light source, its output is that 0 ~ 150mW is adjustable, output wavelength is 375nm, power swing < 1%p-p, centre wavelength deviation < ± 3nm, spectral width < 3nm, the seed light beam that UV laser diode 22 produces is coupled into optical fiber after collimation, then optical fiber collimator 23 is transported to, zoom coupled lens group 24 is exported to by optical fiber collimator, fiber numerical aperture NA=0.22, core diameter=200 μm, length is 1.0m, optical fiber collimator 23 is with tail optical fiber 31, with the output optical fibre phase welding of infrared semiconductor laser 21, UV laser diode 22, laser beam for infrared semiconductor laser 21, UV laser diode 22 being produced forms the less parallel Gaussian beam output having spot diameter size and be about 4mm, the angle of divergence < 18mrad of light beam, zoom coupled lens group 24, its amplification is 2 to 5 times, Output of laser through optical fiber collimator 23 is expanded, by changing focal length and the amplification of zoom coupled lens group 24, light beam being enlarged into the less parallel Gaussian beam with certain spot diameter size and 8mm ~ 20mm and exporting to free space, the ultraviolet light beam that UV laser diode 2 exports is irradiated to ultraviolet light beam scanning mirror 25, its minute surface plating 808nm ~ 980nm broadband infrared anti-reflection film, for through iraser, also be coated with 266nm ~ 380nm broadband ultraviolet to be all-trans film, UV light reflectivity > 99.9%, the base of ultraviolet light beam scanning mirror 25 is driven by electric rotating machine, can carry out the deflection of 0 ~ 180 ° of wide-angle, infrared semiconductor laser 21 exports infrared beam and is irradiated to infrared beam flying tilting mirror 26, be all-trans film in minute surface plating 808nm ~ 980nm broadband, reflectance > 99.9%, the base of infrared beam flying tilting mirror 26 is driven by electric rotating machine, can carry out the deflection of 0 ~ 180 ° of wide-angle, infrared laser beam and UV laser beam scan according to certain angle and are irradiated to cabin 30, native system can according to the killing effect of different bacterium type, Zoom lens group and power knob is utilized to regulate laser facula size and output, and use ultraviolet light beam scanning mirror 25, infrared beam flying tilting mirror 26 pairs of cabins 30 carry out wide-angle high-velocity scanning, sterilization, native system has that volume is little, lightweight, reliability is strong, wide-angle scanning speed is fast, electro-optical efficiency and killing bacteria efficiency advantages of higher, has the potentiality of extensive use.
Compliance test result is carried out to disinfection system of the present invention, use escherichia coli (ATCC 25922) as instruction pathogen, use iraser (808nm, 50W) combine Ultra-Violet Laser (375nm, 150mW), 12 microbiological contamination slides are lain against in sterilizing vessel, level is put in distance light source 1m place and irradiates, in 30s, 60s, 90s, 120s, 150s, 180s totally 6 different intervals respectively takes out 2 microbiological contamination slides, drop into 2 respectively and fill 5mL eluent (1% Tween 80, 1% peptone physiological saline) in test tube, after rapping dilution, get 0.5mL eluent, pour into as flat board, each microbiological contamination slide inoculates two, put 37 DEG C of cultivation 48h and make count plate, calculate killing rate.Test confirms, adopt 60s irradiation of the present invention namely to reach more than 90% killing rate, 120s irradiation can arrive indicator bacteria killing rate >=99.9% killing effect.Required time is only 1/10th of current the most frequently used Ultraluminescence sterilization.
Claims (8)
1., for a ultraviolet-infrared dual band semiconductor laser quick sterilization system for medical chamber disinfection of indoor air, it is characterized in that: comprise infrared semiconductor laser, UV laser diode, optical fiber collimator; Wherein:
Infrared semiconductor laser: for generation of infrared band laser;
UV laser diode: produce ultraviolet band laser;
Optical fiber collimator: the laser for infrared semiconductor laser or UV laser diode being produced passes through coupling fiber, and the less parallel Gaussian beam making coupled light beam formation have certain spot diameter size exports;
Infrared semiconductor laser is as infrared laser light source, its output is 0 ~ 50W, and output wavelength is 808nm ~ 980nm, power swing <2%p-p, centre wavelength deviation < ± 3nm, spectral width <3nm; UV laser diode is as Ultra-Violet Laser light source, and its output is 0 ~ 150mW, and output wavelength is 375nm, power swing <1%p-p, centre wavelength deviation < ± 3nm, spectral width <3nm.
2. as claimed in claim 1 for the ultraviolet-infrared dual band semiconductor laser quick sterilization system of medical chamber disinfection of indoor air, also comprise: zoom coupled lens group: the light beam exported through optical fiber collimator collimation is expanded and exported; Beam flying tilting mirror: rotate according to certain angle, reflect the laser beam after zoom coupled lens group expands to sterile field.
3., as claimed in claim 1 or 2 for the ultraviolet-infrared dual band semiconductor laser quick sterilization system of medical chamber disinfection of indoor air, described optical fiber collimator becomes cylindrical, comprises tail optical fiber, cylindrical shell, spherical lens.
4. as claimed in claim 1 or 2 for the ultraviolet-infrared dual band semiconductor laser quick sterilization system of medical chamber disinfection of indoor air, described optical fiber collimator comprises a cylindrical shell, one end of cylindrical shell is provided with spherical lens by end cap, the other end is provided with mouthpiece, a grade washer is installed between mouthpiece and cylindrical shell, mouthpiece inside is provided with the metal ferrules of an inner hollow, the outer cover of mouthpiece is equipped with a trocar sheath by a reducer pipe fixed fiber, and the end of optical fiber is coaxially fixedly connected with metal ferrules by coaxial connector.
5., as claimed in claim 4 for the ultraviolet-infrared dual band semiconductor laser quick sterilization system of medical chamber disinfection of indoor air, described coaxial connector and the end face of Fiber connection are along tapered of its axis concave shaped.
6. the ultraviolet-infrared dual band semiconductor laser quick sterilization system for medical chamber disinfection of indoor air as described in as arbitrary in claim 1-5, the angle of divergence <18mrad of described optical fiber collimator output beam.
7. the ultraviolet-infrared dual band semiconductor laser quick sterilization system for medical chamber disinfection of indoor air as described in as arbitrary in claim 2-6, described laser beam scanning mirror comprises infrared beam flying tilting mirror and ultraviolet light beam scanning mirror, the minute surface of described infrared beam flying tilting mirror is coated with 808nm ~ 980nm broadband and is all-trans film, its reflectance >99.9%.
8. the ultraviolet-infrared dual band semiconductor laser quick sterilization system for medical chamber disinfection of indoor air as described in as arbitrary in claim 2-6, described laser beam scanning mirror comprises infrared beam flying tilting mirror and ultraviolet light beam scanning mirror, the minute surface plating 808nm ~ 980nm broadband infrared anti-reflection film of described ultraviolet light beam scanning mirror, be also coated with 266nm ~ 380nm broadband ultraviolet and be all-trans film, its UV light reflectivity >99.9%.
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| CN110486840A (en) * | 2019-08-16 | 2019-11-22 | 武汉虹拓新技术有限责任公司 | It is a kind of based on femtosecond laser air sterilization antivirus go haze device and air-conditioning system |
| CN111481694A (en) * | 2020-05-27 | 2020-08-04 | 梁旭东 | Movable ultraviolet L ED sterilization and disinfection device |
| CN112998187A (en) * | 2021-03-29 | 2021-06-22 | 苏州光线跃动工业智能科技有限公司 | Laser sterilization equipment for fluid |
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| CN110486840A (en) * | 2019-08-16 | 2019-11-22 | 武汉虹拓新技术有限责任公司 | It is a kind of based on femtosecond laser air sterilization antivirus go haze device and air-conditioning system |
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