CN112717154A - Object surface virus killing system and virus killing machine based on ultrafast laser - Google Patents
Object surface virus killing system and virus killing machine based on ultrafast laser Download PDFInfo
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- CN112717154A CN112717154A CN202011534908.2A CN202011534908A CN112717154A CN 112717154 A CN112717154 A CN 112717154A CN 202011534908 A CN202011534908 A CN 202011534908A CN 112717154 A CN112717154 A CN 112717154A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention provides an object surface antivirus system based on ultrafast laser, comprising: an ultrafast laser module; the sterilizing module is positioned at the downstream of the ultrafast laser module along the propagation direction of the light path and is used for focusing the ultrafast laser beam to the surface of an object so as to sterilize the object; wherein, the disinfection module includes: the dynamic focusing sub-module is used for adjusting the focus of the ultrafast laser beam according to the distance between the surface of the object and the ultrafast laser module; a focuser for focusing a focal point on the object surface. The ultrafast laser-based object surface antivirus system provided by the invention utilizes the attribute of ultrafast laser, and focuses ultrafast laser to the object surface by setting the dynamic focusing sub-module and the focalizer so as to sterilize. The ultrafast laser-based object surface antivirus system provided by the invention can simultaneously carry out human on-line disinfection and killing on viruses and germs on the surfaces of objects with different geometric shapes, and cannot cause adverse effects on human bodies or the environment.
Description
Technical Field
The invention relates to the technical field of object surface disinfection, in particular to an object surface disinfection system based on ultrafast laser and a disinfection machine.
Background
Contact transmission is one of the major pathways for viral pathogen transmission, including direct contact transmission and indirect contact transmission. Direct contact transmission refers to the direct transmission of the virus from the source of infection to a suitable entry portal for the susceptible, such as the transmission of body fluids, such as blood, saliva, etc., between species. Indirect contact transmission refers to transmission caused by contacting with articles polluted by viruses and bacteria, such articles comprise daily articles such as toys, door handles, bed sheets, quilt covers, bathroom appliances and the like; medical instruments in hospitals, etc.; the food in the market is fruit, vegetable, meat and the like. In public and private places such as hospitals, railway stations, airport lounges, large indoor gymnasiums, supermarkets, vegetable yards, hotels, family rooms and the like, personnel frequently move, various bacteria and viruses breed, deposit and breed, and the bacteria and the viruses are combined with media such as secretions of human bodies, so that a large number of various pathogens and bacterial colonies are attached to the surfaces of objects in the places, various diseases and infectious disease infection and even cross infection are caused, and the health of people is influenced. Particularly, in places such as supermarkets, hotels, hospitals and the like, if disinfection is not timely and thorough, a large amount of virus and bacteria exist on the surfaces of articles, and infectious diseases are caused to outbreak.
At present, the following methods for sterilizing and disinfecting the surface of an article are generally available: general spray disinfection, aerosol spray disinfection, wipe disinfection, soak disinfection, smoke fumigation disinfection, powder spray disinfection, ultraviolet disinfection, radioactive irradiation disinfection, plasma disinfection, and the like. The common spray disinfection method and the aerosol disinfection method are mature in technology and suitable for disinfection of the surfaces of most articles, but the medicament spraying method requires that a medicament reaches a certain concentration to achieve disinfection effect, and dead corners are left on the surfaces of the articles to influence the disinfection effect if the medicament is sprayed unevenly, and particularly, the disinfection effect is poor for smooth surface articles, the medicament generally has irritation, corrosivity or toxicity, disinfection personnel need to wear protective equipment, and the spray is prevented from being directly sprayed to a human body or entering a respiratory tract during spraying, so that the common spray disinfection method is generally used for unmanned off-line disinfection. The smoke fumigation method uses the disinfectant smoke generated after ignition for disinfection, and the used disinfectant smoke has irritation or toxicity, so the disinfection method needs to avoid online disinfection by people, and needs to be sealed for disinfection aiming at objects with high disinfection requirements, such as medical masks and the like, the time period is long, and the disinfection effect is poor for the objects with general disinfection requirements. The powder spraying disinfection method uses the disinfection powder for disinfection, and has the advantages of simple disinfection method and low cost, but also has the defect that people cannot disinfect online. In addition, the above methods have residual disinfectants after use, and have certain pollution to the environment. The ultraviolet ray disinfection method uses ultraviolet rays with certain intensity to irradiate the surface of an article, destroys protein structures of bacteria, viruses and the like for disinfection, but the ultraviolet rays can cause harm to human bodies, so if the ultraviolet rays with high intensity are used for disinfection, the ground needs to be disinfected in an unmanned condition; if low-intensity ultraviolet rays are used for sterilization, the sterilization time is long, and the sterilization effect is poor. The radiation disinfection method uses the rays generated by radioactive substances to irradiate the surfaces of articles for disinfection, and has the disadvantages of complex method, high use cost, certain qualification required by users and limited use scenes.
Based on the method, a brand-new object surface disinfection method is provided to realize online disinfection by people without causing harm to human bodies.
Disclosure of Invention
The invention provides an ultrafast laser-based object surface antivirus system and an antivirus machine, which are used for solving the problem that an antivirus method in the prior art is harmful to a human body and achieving online antivirus of a human body.
The invention provides an object surface antivirus system based on ultrafast laser, comprising: an ultrafast laser module; the sterilizing module is positioned at the downstream of the ultrafast laser module along the propagation direction of the light path and is used for focusing the ultrafast laser beam on the surface of an object to sterilize the object; wherein the disinfection module comprises: the dynamic focusing sub-module is used for adjusting the focus of the ultrafast laser beam according to the distance between the surface of the object and the ultrafast laser module; a focuser for focusing the focal point on the object surface.
According to the ultrafast laser-based object surface disinfection system provided by the invention, the disinfection module further comprises a reflector for changing the propagation path of the ultrafast laser beam so as to propagate the ultrafast laser beam to the object surface.
According to the ultrafast laser-based object surface disinfection system provided by the invention, the disinfection module further comprises a collimator for collimating the ultrafast laser beam.
According to the ultrafast laser-based object surface sterilization system provided by the invention, the sterilization module further comprises a beam expander for reducing the divergence angle of the ultrafast laser beam.
According to the invention, the object surface sterilization system based on the ultrafast laser is provided, and the sterilization module further comprises a scanner and a shaper.
The ultrafast laser-based object surface antivirus system provided by the invention further comprises a safety module, wherein the safety module comprises an isolator, and the isolator is used for blocking reflected light rays from entering the ultrafast laser module.
According to the ultrafast laser-based object surface sterilization system provided by the invention, the safety module further comprises an attenuator.
According to the object surface antivirus system based on ultrafast laser provided by the invention, the ultrafast laser module comprises: the device comprises a seed source sub-module, a shaping sub-module, an amplifying sub-module, a compressing sub-module and an electric control sub-module, wherein the seed source sub-module, the shaping sub-module, the amplifying sub-module and the compressing sub-module are all electrically connected with the electric control sub-module.
The invention also provides a sterilizing machine which comprises the ultrafast laser-based object surface sterilizing system.
The ultrafast laser-based object surface antivirus system provided by the invention utilizes the attribute of ultrafast laser, and focuses ultrafast laser to the object surface by setting the dynamic focusing sub-module and the focalizer so as to sterilize. The ultrafast laser-based object surface virus killing system provided by the invention can be used for simultaneously killing viruses and germs on the surface of an object on line by people, has the advantages of short virus killing time, wide virus killing objects, low cost, no residue and environmental friendliness, can be used for killing viruses on line by people because the ultrafast laser-based object surface virus killing system is harmless to human bodies, and cannot cause adverse effects on the human bodies or the environment.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the ultra-fast laser based object surface disinfection system provided by the present invention;
FIG. 2 is a schematic structural diagram of an ultrafast laser-based object surface disinfection system provided by the present invention;
FIG. 3 is an overall structure view of the sterilizer provided in the present invention;
reference numerals:
1: an ultrafast laser module; 2: a three-dimensional ground; 3: a reflector;
4: a disinfection module; 5: a laser scanning area; 6: a security module;
11: a seed source submodule; 12: a shaping submodule; 13: an amplification submodule;
14: compressing the sub-modules; 15: an electric control sub-module; 41: a collimator;
42: a shaper; 43: a beam expander; 44: a scanner;
45: a dynamic focus sub-module; 46: a focuser; 47: a mirror;
61: an isolator; 62: an attenuator; 100: an optical fiber;
101: holding the head by hand; 102: a scanning area; 103: an ultrafast laser module cabin;
104: a housing; 105: an emergency stop button; 106: a display screen;
107: a switch; 108: heat dissipation holes; 109: a universal wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The ultrafast laser based object surface sterilization system and the sterilization machine according to the present invention will be described with reference to fig. 1 to 3.
As shown in fig. 2, in one embodiment of the present invention, an ultrafast laser-based object surface sterilizing system includes: an ultrafast laser module 1 and a disinfection module 4. Ultrafast laser module 1 is used for sending ultrafast laser beam, and disinfection module 4 lies in this ultrafast laser module 1's low reaches along ultrafast laser beam's direction of propagation, and this disinfection module 4 can focus the ultrafast laser beam who jets into wherein to the object surface to disinfect.
Specifically, after the ultrafast laser beam is injected into the disinfection module 4, the disinfection module 4 adjusts the propagation path of the ultrafast laser beam according to the distance between the object surface and the disinfection module 4, and then the disinfection module 4 rapidly focuses the ultrafast laser beam on the object surface to disinfect.
Further, as shown in fig. 1, the operating principle of the ultrafast laser based object surface disinfection system is as follows: the ultrafast laser beam changes a light path transmission path through the reflector 3 to be guided into the disinfection module 4, the ultrafast laser beam is focused on the surface of an object after passing through the disinfection module 4 and moves at a high speed, so that an irradiation area with high pulse energy is formed on the surface of an article, and after harmful bacteria or viruses in the irradiation area are irradiated by the ultrafast laser, proteins of the harmful bacteria or viruses are denatured or solidified and even gasified to die, so that the aim of disinfection and sterilization is fulfilled.
In practical use, the ultrafast laser beam is focused on the surface of the object while the laser scanning area 5 scans the surface of the object, so as to kill viruses on the surface of the object.
As shown in fig. 2, in one embodiment of the present invention, the disinfection module 4 includes: a dynamic focus sub-module 45 and a focuser 46. Specifically, for a planar object surface, the ultrafast laser beam may be focused on the planar object surface through the focusing device 46 for disinfection. Further, according to the distance between the ultrafast laser module 1 and the object surface, the reflector 3 may be disposed upstream of the focuser 46 along the propagation direction of the optical path to change the propagation direction of the ultrafast laser beam, so that the ultrafast laser beam passes through the focuser 46 and is focused on the surface of the planar object, and moves at a certain rule and speed to form an ultrafast laser distribution area with high pulse energy on the object surface for disinfection.
Further, for the surface of the three-dimensional object, as shown in fig. 1, the dynamic focusing sub-module 45 adjusts the focal point of the ultrafast laser according to the distance between the three-dimensional ground 2 and the ultrafast laser module 1, so that the ultrafast laser can be focused on the surface of the three-dimensional ground 2 after passing through the focalizer 46 and can move at a certain rule and speed to form an ultrafast laser light distribution area with high pulse energy on the surface of the object for disinfection. In particular, the dynamic focus sub-module 45 includes a distance sensor for monitoring the distance between the three-dimensional ground 2 and the ultrafast laser module 1.
Further, in one embodiment of the present invention, optionally, the ultrafast laser module 1 is a fiber ultrafast laser module. The ultrafast laser beam is: the central wavelength of the ultrafast laser is less than or equal to 1030nm, the pulse width is less than 800fs, the average power is greater than 1W, the single pulse energy is greater than 10 microjoules, the repetition frequency range is 0-100 MHz, and the pulse peak power is greater than 1 MW.
It can be understood that: the performance of the ultrafast laser beam as listed above is merely an illustrative example, and other settings may be made for the performance of the ultrafast laser beam according to the actual sterilization site.
The ultrafast laser-based object surface antivirus system provided by the invention utilizes the attribute of ultrafast laser, and focuses ultrafast laser to the object surface by setting the dynamic focusing sub-module and the focalizer so as to sterilize. The ultrafast laser-based object surface virus killing system provided by the invention can be used for simultaneously killing viruses and germs on the surface of an object on line by people, has the advantages of short virus killing time, wide virus killing objects, low cost, no residue and environmental friendliness, can be used for killing viruses on line by people because the ultrafast laser-based object surface virus killing system is harmless to human bodies, and cannot cause adverse effects on the human bodies or the environment.
As shown in fig. 2, in an embodiment of the present invention, the disinfection module 4 further includes: collimator 41, shaper 42, beam expander 43, scanner 44, and mirror 47. Specifically, the collimator 41 is used to collimate the diverging ultrafast laser beam entering the disinfection module 4 into a parallel beam. The shaper 42 is used to shape the ultrafast laser beam into a suitable shape. The beam expander 43 is used for enlarging the diameter of the ultrafast laser beam and simultaneously reducing the divergence angle of the ultrafast laser beam, so as to facilitate the ultrafast laser beam to be focused on the surface of the object. The scanner 44 is used to scan the surface of the object while the ultrafast laser sterilizes the surface of the object. The mirror 47 is used to change the propagation path of the ultrafast laser beam so that it can be focused onto the object surface. It can be understood that: according to the selected ultrafast laser module 1, when the disinfection module 4 is set, the above components can be selected to be combined and set, and the component is not limited to include all the components.
In one embodiment of the present invention, the ultrafast laser module 1 includes: a seed source sub-module 11, a shaping sub-module 12, an amplifying sub-module 13, a compressing sub-module 14 and an electric control sub-module 15. Specifically, the seed source sub-module 11 emits a first beam of seed light, and the seed light is adjusted in spatial distribution, pulse shape and pulse width under the action of the shaping sub-module 12. The amplification sub-module 13 is used for increasing the pulse energy of the seed light, and the compression sub-module 14 is used for compressing the seed light to an ultra-fast level. The electronic control sub-module 15 is used for power control during the conversion of the seed light beam.
It can be understood that: the ultrafast laser module 1 may also adjust its constituent sub-modules according to actual requirements, select different powers, etc., without being limited to the range listed in one embodiment of the present invention.
As shown in FIG. 2, in one embodiment of the present invention, the ultrafast laser-based object surface sterilization system further includes a security module 6, the security module 6 including an isolator 61 and an attenuator 62. Specifically, the isolator 61 serves to block reflected light from entering the ultrafast laser module 1. When the object with the surface made of the high-reflection material is sterilized, the isolator 61 can be arranged in the sterilizing system to prevent the ultrafast laser beam from entering the ultrafast laser module 1 after being reflected by the high-reflection material, so that the ultrafast laser module 1 is damaged. Attenuator 62 is used to attenuate the ultrafast laser with a large damage threshold to prevent the ultrafast laser from damaging the object during the sterilization process, and attenuator 62 is also used to sterilize the surface of the object with different materials.
The embodiment of the invention also provides a virus killing machine which comprises the ultrafast laser-based object surface virus killing system.
As shown in fig. 3, in one embodiment of the present invention, a sterilizer includes: optical fiber 100, handheld head 101, scanning area 102, ultrafast laser module 103, housing 104, emergency stop button 105, display screen 106, switch 107, heat dissipation vent 108, and universal wheel 109.
Specifically, a hand-held head 101 is connected to the upper part of the housing 104 via an optical fiber 100, and a scanning area 102 is attached to the lower part of the hand-held head 101. The housing 104 is also provided with a display screen 106, an emergency stop button 105 and a switch 107. The housing 104 is formed with heat dissipating holes 108, the bottom of which is mounted with universal wheels 109, and the housing of the housing 104 is mounted with the ultrafast laser module cabin 103. In the process of disinfection, the switch 107 is pressed, the disinfection device is started, the scanning area 102 scans the surface of the object, and the ultrafast laser is emitted from the ultrafast laser module cabin 103 and is focused on the surface of the object, so that disinfection on the surface of the object is realized.
According to the virus killing machine provided by the embodiment of the invention, the ultrafast laser is focused on the surface of an object by utilizing the attribute of the ultrafast laser so as to kill viruses. The online disinfection method can be used for simultaneously carrying out online disinfection and sterilization on viruses and germs on the surface of an object, has short disinfection time, wide disinfection objects, low cost, no residue and environmental friendliness, can carry out online disinfection on people due to no harm to the human body, and does not cause adverse effect on the human body or the environment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An ultrafast laser-based object surface disinfection system, comprising:
an ultrafast laser module;
the sterilizing module is positioned at the downstream of the ultrafast laser module along the propagation direction of the light path and is used for focusing the ultrafast laser beam on the surface of an object to sterilize the object;
wherein the disinfection module comprises:
the dynamic focusing sub-module is used for adjusting the focus of the ultrafast laser beam according to the distance between the surface of the object and the ultrafast laser module;
a focuser for focusing the focal point on the object surface.
2. The ultrafast laser based object surface sterilization system of claim 1, wherein the sterilization module further comprises a mirror for changing a propagation path of the ultrafast laser beam to propagate the ultrafast laser beam to the object surface.
3. The ultrafast laser based object surface disinfection system of claim 1, wherein the disinfection module further comprises a collimator for collimating the ultrafast laser beam.
4. The ultrafast laser based object surface sterilization system of claim 1, wherein the sterilization module further comprises a beam expander for reducing a divergence angle of the ultrafast laser beam.
5. The ultrafast laser based object surface disinfection system of claim 1, wherein the disinfection module further comprises a scanner and a shaper.
6. The ultrafast laser based object surface disinfection system of claim 1, further comprising a security module comprising an isolator for blocking reflected light from entering the ultrafast laser module.
7. The ultrafast laser based object surface disinfection system of claim 6, wherein the security module further comprises an attenuator.
8. The ultrafast laser based object surface disinfection system of claim 1, wherein the ultrafast laser module comprises: the device comprises a seed source sub-module, a shaping sub-module, an amplifying sub-module, a compressing sub-module and an electric control sub-module, wherein the seed source sub-module, the shaping sub-module, the amplifying sub-module and the compressing sub-module are all electrically connected with the electric control sub-module.
9. A disinfection machine comprising an ultrafast laser based object surface disinfection system as claimed in any one of claims 1 to 8.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114573068A (en) * | 2022-03-03 | 2022-06-03 | 广东国志激光技术有限公司 | Periscope type laser disinfection and sterilization device in pipe |
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