WO2020153788A1 - 광 조사 장치 - Google Patents
광 조사 장치 Download PDFInfo
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- WO2020153788A1 WO2020153788A1 PCT/KR2020/001167 KR2020001167W WO2020153788A1 WO 2020153788 A1 WO2020153788 A1 WO 2020153788A1 KR 2020001167 W KR2020001167 W KR 2020001167W WO 2020153788 A1 WO2020153788 A1 WO 2020153788A1
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- light
- irradiated
- light source
- wavelength band
- irradiation device
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- A—HUMAN NECESSITIES
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- A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
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Definitions
- the present invention relates to a light irradiation device, and more particularly, to a light irradiation device used for treatment.
- ultraviolet rays are known to have a sterilizing effect, and a conventional ultraviolet treatment device is used in a manner that irradiates ultraviolet rays to a region requiring treatment by operating it near the skin using a conventional ultraviolet lamp.
- ultraviolet rays have side effects such as skin aging and cancer, as well as antiseptic effects. Accordingly, there is a need for a method capable of obtaining a sterilizing effect in a safe manner that does not affect the human body.
- An object of the present invention is to provide a light irradiation device having a high sterilizing effect while minimizing side effects on the human body.
- the light irradiation apparatus includes a housing, a substrate provided in the housing, and a light source mounted on the substrate, wherein the light source is provided in at least one or more and has a first light in a blue wavelength band.
- control unit may control the first and second light sources such that the second light is emitted after the first light is emitted.
- the second light may correspond to at least one wavelength band of UVA, UVB, and UVC wavelength bands.
- the first light may have a wavelength band of about 400nm to about 500nm.
- the first light may further include light in a wavelength band corresponding to visible light, and the first light may have a wavelength band of about 380 nm to about 780 nm.
- the spectrum of the first light has an area of about 55% or more compared to the area of the normalized solar spectrum, and the peak of the first light may have a deviation of about 0.14 or less compared to the normalized solar spectrum.
- the second light may have a wavelength band of about 240nm to about 280nm.
- the first light may be irradiated for a first time, and the second light may be irradiated for a second time shorter than the first time.
- the second light may be irradiated after irradiation of the first light is completed, and the second light may be irradiated before the irradiation of the first light is completed and the first time And at least a portion of the second time may have a section overlapping each other.
- the first light may be irradiated continuously, and the second light may be irradiated discontinuously.
- the second light may be irradiated periodically.
- the light irradiation device may be used for the treatment of the human body, for example, it may be used for the treatment of acute wounds.
- the second light source when the dose of the harmless range per day is the allowable dose amount when the second light is applied to the human body, the second light source may emit the second light within the allowable dose amount. have. In one embodiment of the present invention, the second light may be irradiated with a dose amount of about 30 J/m 2 to about 1,000,000 J/m 2 .
- a light irradiation device having a high sterilization effect while minimizing side effects to the human body is provided.
- FIG. 1 is a plan view showing a light irradiation device according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing a light irradiation apparatus according to an embodiment of the present invention.
- 3A and 3C show a driving method of a light irradiation apparatus according to an embodiment of the present invention, and show time according to on/off of the first and second light sources.
- 4A and 4B illustrate a method of driving a light irradiation apparatus according to an embodiment of the present invention when sequentially irradiating a first light and a second light, and turn on/off the first and second light sources. It shows the time to follow.
- 5A to 5C show a driving method of a light irradiation apparatus according to an embodiment of the present invention, and show time according to on/off of the first and second light sources.
- FIG. 6 is a spectrum of light emitted from a first light source in a light emitting device according to an embodiment of the present invention.
- FIG. 7A is a plan view of a light irradiation apparatus according to an embodiment of the present invention
- FIG. 7B is a cross-sectional view taken along line I-I' of FIG. 7A.
- FIG 8 and 9 are examples illustrating an example in which a lighting device according to an embodiment of the present invention is implemented as a product.
- FIG. 10 is a graph showing a sterilization effect according to irradiation conditions when light is applied to a sterilization object using a light emitting device according to an embodiment of the present invention and the present invention.
- FIG. 11A is a graph showing the results of testing the sterilizing power of the first light
- FIG. 11B is a graph showing the results of testing the sterilizing power of the second light.
- FIG. 12A shows the number of bacteria when irradiated with the first light alone, when irradiated with the second light alone, and when the first and second light are combined and irradiated
- FIG. 12B is irradiated with the first light alone
- the second light alone was irradiated, and the first and second light were irradiated in combination, it shows the sterilizing power.
- FIG. 13A shows the number of bacteria when the combination order of the first light and the second light is differently set and irradiated
- FIG. 13B shows the sterilizing power when the combination order of the first light and the second light is differently set and irradiated.
- FIG. 14A shows the number of bacteria when irradiated with the first light and the second light sequentially under in vitro conditions, but with different amounts of light from the first light
- FIG. 14B sequentially irradiates the first light and the second light. 1 It shows the sterilizing power when the amount of light is different.
- FIG. 15A shows the number of bacteria when irradiated with the first light and the second light sequentially in an in vivo condition but with different amounts of the first light
- FIG. 15B sequentially shows the first light and the second light under in vivo conditions. It shows the sterilizing power when irradiated with but with different light quantity of the first light.
- Figure 16 shows the change in sterilizing power according to the date in vivo conditions.
- Figure 17 shows the results of measuring the number of bacteria against the date in vivo conditions.
- FIG. 19A and 19B are photographs photographing the shape of the wound area according to the date
- FIG. 19A is photographs of the wounds of the irradiated group
- FIG. 19B is photographs of the wounds of the irradiated group.
- FIG. 20A is a graph showing the content of thymine dimer in tissue as a percentage, and FIG. 20B shows the degree of tissue luminescence stained with DCFH-DA.
- the present invention relates to a light irradiation device that performs sterilization by applying sterilization light to an object in need of sterilization.
- the light irradiation device according to an embodiment of the present invention can be used for wound healing purposes where wound healing is required.
- the object to be sterilized is a human body and the skin is wounded, it is necessary to sterilize the pathogen at the wound site, and the sterilizing device according to an embodiment of the present invention may be used to sterilize the pathogen in the wound.
- the pathogen ( ⁇ , pathogen) refers to microorganisms, such as bacteria, viruses, bacteria, fungi, protozoa, fungi.
- the light irradiation device according to an embodiment of the present invention is used for various wounds such as wounds, ulcers, surgical site infection, laceration, incised wounds, and punctured wounds. Can be.
- FIG. 1 is a plan view showing a light irradiation device according to an embodiment of the present invention.
- the light irradiation apparatus 100 includes a first light source 30 for emitting first light, a second light source 40 for emitting second light, and the first and second light sources It includes a substrate 20 for mounting (30, 40).
- the first light source 30 and the second light source 40 are mounted on the substrate 20, and the substrate 20 is particularly limited as long as the first and second light sources 30 and 40 can be mounted. It is not intended to be provided in various forms.
- the substrate 20 may be provided in a form in which wiring is included to supply power to the first and second light sources 30 and 40.
- the substrate 20 may be formed of, for example, a metal substrate on which wiring is formed, a printed circuit board, or the like.
- the first light source 30 emits the first light in the blue wavelength band among the visible light wavelength bands.
- the first light may correspond to light in a wavelength band of about 400 nm to about 500 nm.
- the first light may be light in a wavelength band of about 400 nm to about 420 nm.
- the first light may be light having a wavelength of 405 nm.
- the first light acts on a photosensitizer present in microorganisms such as bacteria, bacteria, and fungi to damage cells and induce the death of microorganisms.
- the first light corresponds to the absorption wavelength of porphyrin, a photosensitizer present in bacteria.
- the first light shows a high sterilizing power in particular at a wavelength of 400 nm to 420 nm and 455 nm to 470 nm, which corresponds to the absorption wavelength band of the photosensitizer porphyrin.
- Porphyrin is a pigment that is an essential element in the intracellular oxygen delivery process.
- Porphyrin shows a particularly high absorption at a wavelength of about 402 nm to about 420 nm, and also absorbs a wavelength of about 455 nm to 470 nm.
- porphyrin since porphyrin has a difference in content depending on the type of bacteria, it may be used for the purpose of killing specific bacteria by adjusting the wavelength and intensity of the first light.
- the first light When the first light is applied to the bacteria, porphyrin in the bacteria absorbs the first light, and reactive oxygen species are generated in the cells of the bacteria by the energy of the first light. Free radicals accumulate in the cells of bacteria and oxidize the cell walls of bacteria, and as a result, bacteria are killed.
- the second light source 40 emits second light in the ultraviolet wavelength band. That is, the second light may be light in a wavelength range of about 100 nm to about 400 nm, and may be UVA, UVB, or UVC.
- UVA may have a wavelength band of about 315 nm to about 400 nm
- UVB may have a wavelength band of about 280 nm to about 315 nm
- UVC may have a wavelength band of about 100 nm to about 280 nm.
- the second light may correspond to UVC, and may have a wavelength band of about 240 nm to about 280 nm.
- the second light may be light having a wavelength of 275 nm.
- DNA in the bacteria absorbs the second light, and the DNA structure changes due to the energy of the second light.
- the binding of thymine and adenine in DNA is broken by absorption of the light, because the bases constituting DNA, purine or pyrimidine, strongly absorb ultraviolet rays, and thymine dimer is formed as a result of absorption of light.
- DNA is modified, and the modified DNA has no cell proliferation ability, leading to the death of bacteria.
- DNA can absorb light in a wavelength range of about 240 nm to about 280 nm.
- FIG. 2 is a block diagram showing a light irradiation apparatus according to an embodiment of the present invention.
- the light irradiation apparatus includes a first light source 30 for emitting first light, a second light source 40 for emitting second light, and the first light source 30 ) And a control unit 50 for controlling the emission of the second light source 40, a control unit 50 and a power supply unit 60 for supplying power to the first and second light sources 30, 40. have.
- each of the first and second light sources 30 and 40 may emit a first light including a blue wavelength band and a second light including an ultraviolet wavelength band.
- the first and second light sources 30 and 40 may be implemented with various light sources.
- various light emitting diodes, halogen lamps, fluorescent lamps, gas discharge lamps, and lasers may be used as the first and second light sources 30 and 40, respectively, and the type is not limited.
- the control unit 50 may control whether light is emitted from the first and second light sources 30 and 40, the amount of light, the intensity of the light, and the emission time.
- the controller 50 may control whether light is emitted, the amount of light, the intensity of the light, and the emission time in various ways.
- the power supply unit 60 is electrically connected to the first and second light sources 30 and 40 and the control unit 50 to supply power to the first and second light sources 30 and 40 and the control unit 50.
- the power supply unit 60 is illustrated as supplying power to the first and second light sources 30 and 40 through the control unit 50, but is not limited thereto, and the first and second light sources 30 , 40) may be directly connected to the power supply unit 60 to supply power to the first and second light sources 30 and 40.
- the light irradiation apparatus 100 may be further provided with an optical unit that selectively focuses or diverts light emitted from the first and second light sources 30 and 40.
- the optical unit includes first and second light sources 30, The light generated from 40) can be focused to a narrow range or a wide area as needed. Alternatively, the light may be focused or dispersed in a uniform or non-uniform form according to a position to which light is to be irradiated.
- the optical unit may include at least one or more lenses as necessary, and the lenses may perform various functions such as focusing, dispersing, uniformizing, and non-uniformizing light from the first and second light sources 30 and 40.
- lenses for focusing light on the first and second light sources 30 and 40 may be used.
- a lens for dispersing light may be used.
- the control unit 50 drives the first light source 30 and the second light source 40 simultaneously or separately, respectively. That is, the first and second light sources 30 and 40 may be turned on/off at the same time, and the first light source 30 and the second light source 40 may be turned on/off separately.
- the intensity of the light emitted from the first light source 30 and the second light source 40 that is, the intensity of the first and second light may also be controlled simultaneously or separately.
- the control unit 50 may be such that the daily irradiation amount of ultraviolet light is 3 mJ/cm 2 or less.
- the control unit 50 maintains the daily irradiation amount to be 3 mJ/cm 2 or less.
- the daily irradiation time is less than 1000 seconds, the ultraviolet irradiation amount is maintained so as not to exceed 1 J/cm 2 , and when the daily irradiation time is 1000 seconds or more, the ultraviolet irradiation dose is maintained not exceeding 1 mW/cm 2 Can be.
- the distance from the first light source 30 and the second light source 40 to the sterilization target may be variously set.
- the light irradiation time of the first light source 30 and the second light source 40 may also be variously set.
- 3A and 3C show a driving method of a light irradiation apparatus according to an embodiment of the present invention, and show time according to on/off of the first and second light sources.
- the first light source when the first light emitted from the first light source is L1, the second light emitted from the second light source is L2, and the passage of time is represented by T, the first light source Is turned on for the first time t1 to irradiate the first light L1, and the second light source is turned on for the second time t2 to irradiate the second light L2.
- the first time t1 at which the first light L1 is irradiated may be longer than the second time t2 at which the second light L2 is irradiated.
- the second light L2 it can be irradiated for a shorter time than the first light L1 because of the large effect on the human body.
- the first light source may be applied for a time of about 10 minutes
- the second light source may be applied for a time within about 10 seconds.
- the irradiation time t1 and t2 of the first and second light L2 emitted from the first and second light sources and the amount of light upon irradiation may be variously changed, but the total dose to the object to be sterilized is the human body. It is set within a harmless range.
- the dose amount may be different according to the harmfulness of light emitted from the first light source and the second light source, but in one embodiment of the present invention, the dose amount of the second light source may be within 1/10 of the dose amount of the first light source. In another embodiment, it may be 1/20.
- the allowable dose amount of the second light L2 may be about 30 J/m 2 to about 1,000,000 J/m 2 .
- the first light L1 and the second light L2 may start irradiation at the same time, or may start irradiation at different times.
- the first light L1 and the second light L2 start irradiation at different times
- the first light L1 may be irradiated first or the second light L2 may be irradiated first.
- the time at which the first light L1 and the second light L2 are irradiated may or may not overlap each other.
- the interval between the time for which the first light L1 and the second light L2 is applied may be set to be short. For example, the interval between the time when the first light L1 and the second light L2 is applied may be within a few hours, within a few minutes, or within a few seconds.
- the sterilization apparatus is synergistically obtainable by applying the first light and the second light at the same time, if not simultaneously or simultaneously, to the sterilization effect on the first light alone or the second light alone. It shows a remarkably high sterilization effect compared to the antiseptic effect.
- the sterilization apparatus simultaneously adopts the sterilization principle of the first light that induces the generation of free radicals by the photosensitizer and the second light that induces DNA damage by generating thymine dimer.
- the first and second light sources in combination, it is possible to obtain a remarkably high sterilization effect in a relatively short time even with a smaller amount of energy than when each light source is used alone.
- each of the first and second lights corresponding to blue light and ultraviolet light Two different sterilization mechanisms induce different stresses on the bacteria. Accordingly, the synergistic effect of these stresses can kill bacteria with less energy than when two light sources are used alone. According to an embodiment of the present invention, by mixing the first light while irradiating the second light with a harmless energy amount condition to the biological tissue of the object to be sterilized, a synergistic synergy effect by two light sources is obtained, and accordingly, the present invention is sterilized Even if the object is a human body, an effective sterilization effect can be obtained in a short period of time without damaging human tissue.
- the light irradiation device may be used to initially sterilize the infecting bacteria by irradiating sterile light to an acute infection wound, and as a result, an effect of shortening the wound healing period can be obtained.
- acute wounds reducing the number of bacteria in the infection at the beginning of the wound is of paramount importance in the wound healing process. If the initial sterilization is not sufficiently performed in acute wounds, wound healing does not proceed normally, and may develop into chronic wounds that do not heal for more than 3 months, but can infect infected bacteria using a light irradiation device according to an embodiment of the present invention. In the case of initial sterilization, this can be prevented.
- microorganisms such as bacteria, germs, and fungi on animals or various articles can be sterilized
- the treatment target of the sterilization apparatus according to an embodiment of the present invention is not limited to the human body, and also applies to animals and various articles. Can be extended.
- the sterilization effect is significantly increased.
- sterilization efficiency may be maximized through a process of sequentially applying the first light and the second light to a target to be sterilized.
- the first light may be applied to an object to be sterilized for a predetermined time before the second light is irradiated, and then the second light may be irradiated. Accordingly, it is possible to prevent the DNA from being recovered from damage again after irradiation of the first light, and as a result, a significantly high sterilization effect can be obtained with a small dose compared to irradiating the first light alone.
- the sterilizing power of the object to be sterilized is excellent, but when exposed to the human body for a long time, it may have an adverse effect on the human body, for example, skin aging or cancer.
- the present invention in order to sequentially emit the second light in addition to the first light, there is a need to control the amount of light of the second light.
- synergistic effect of sterilization through sequential irradiation of the first light and the second light can be obtained while minimizing the effect on the human body.
- a method of continuously emitting light a method of sequentially reducing or increasing the intensity of light, a flashing method, or a mixed method may be employed. .
- 4A and 4B illustrate a method of driving a light irradiation apparatus according to an embodiment of the present invention when sequentially irradiating a first light and a second light, and turn on/off the first and second light sources. It shows the time to follow.
- irradiation of the first light L1 is preceded and thereafter, irradiation of the second light L2 may be performed.
- the sterilizing power is significantly increased than when the second light L2 is irradiated first and the first light L1 is irradiated later.
- the effect of inhibiting bacterial growth by the second light L2 may be reduced by irradiation of the first light L1.
- the first light L1 when the first light L1 is applied to the object to be sterilized by using the light irradiation device according to an embodiment of the present invention, when the second light L2 is sequentially applied, the light is irradiated first.
- 1 Light (L1) generates free radicals in the bacteria, causing oxidative stress on the bacteria. In this state, additional sterilization occurs due to the second light L2 that has been irradiated, and the degree of bacterial killing is significantly increased even with a small irradiation amount.
- the application time of the second light L2 may be different within a limit of sequentially applying the first light L1 and the second light L2.
- irradiation of the first light L1 after irradiation of the first light L1 is completed, irradiation of the second light L2 may start, and as shown in FIG. 3B, the first light L1 ) Is not completed, but irradiation of the second light L2 may be started.
- the application times of the first light L1 and the second light L2 may partially overlap, at least a portion of the first time and the second time may have a section overlapping each other.
- the light irradiation apparatus may be driven in various forms by a control unit within a limit of sequentially irradiating the first light L1 and the second light L2.
- 5A to 5C show a driving method of a light irradiation apparatus according to an embodiment of the present invention, and show time according to on/off of the first and second light sources.
- the first light L1 and the second light L2 may be periodically irradiated to an object to be sterilized. That is, after the first light L1 is irradiated to the sterilization target for the first time t1 and the second light L2 is irradiated for the second time t2, the first light L1 and the second light are again applied.
- the investigation of (L2) can be repeated.
- the repetition cycle and repetition number may vary depending on the type and total amount of the object to be sterilized.
- the repetition cycle and frequency can be determined.
- the first light L1 is within a limit to which the second light L2 is applied after the first light L1 is applied. It can be continuously applied to the sterilization object without interruption.
- the second light L2 is not continuously provided and is discontinuously provided overlapping with the first light L1.
- the first light L1 may be continuously applied to the sterilization object without interruption for the first time t1, and the second light L2 may have a certain degree of application of the first light L1.
- the application of the first light L1 may be applied to the sterilization target for a second time t2 while the application of the first light L1 is continuously being performed.
- the second light L2 may be periodically and repeatedly applied to the object to be sterilized.
- the first light L1 is within a limit to which the second light L2 is applied after the first light L1 is applied. It may be continuously applied to the sterilization object without interruption, or may be stopped before the second light L2 is applied. As illustrated, when the first light L1 is applied to the sterilization target for a first time t1, the second light L2 is applied for a second time t2 during the application of the first light L1 Can be. Thereafter, after the application of the first light L1 is finished, the second light L2 may be applied for a third time t3.
- the application time of the second light L2 may be applied to the sterilization target for a different time within a value equal to or less than the allowable dose amount permitted to be safe for the human body. That is, the second time t2 and the third time t3 when the second light L2 is applied may have different values.
- the most sterilizing effect when the second light L2 is applied immediately after stopping while applying the first light L1, the most sterilizing effect may be high, and the first light L1 is applied In the second light (L2) can be sequentially applied without interruption.
- the second light L2 instead of applying the second light L2 immediately after stopping after applying the first light L1, the second light L2 may be applied after some time is cured, but the interval is very short. Can.
- the subsequent sequential application of the first light L1 and the second light L2 is sufficient time. It can be performed again after this has elapsed.
- the first light source includes a blue wavelength that can be sterilized among the visible light wavelength bands, but is not limited thereto, and further includes light in other visible light regions, including light in the blue wavelength band. It may include.
- FIG. 6 is a spectrum of light emitted from a first light source in a light emitting device according to an embodiment of the present invention.
- the first light source emits light in a wavelength range of about 380 nm to about 750 nm, and most of them correspond to a wavelength range of visible light. That is, the first light source corresponds to a light source emitting white light.
- the first light source includes light in a blue wavelength band synergistically combined with the second light, so that the sterilizing effect described above can be obtained in the same manner.
- the first light source in the present embodiment has a spectrum similar to that of sunlight as a form in which light in the entire wavelength band is evenly mixed.
- the first light source according to an embodiment of the present invention differs from sunlight in that it emits light except for most of the ultraviolet wavelength band.
- the light source according to an embodiment of the present invention emits light having a wavelength band of about 380 nm to about 780 nm corresponding to substantially the entire wavelength band of visible light.
- the meaning of being similar to sunlight is based on a normalized solar spectrum
- the area overlapped with the existing invention is a predetermined value or more
- the deviation of the peak from the solar spectrum It also means the case where the deviation from the peak of the solar spectrum is below a predetermined value.
- the first light source may emit light having an area of about 55% or more compared to the area of the normalized solar spectrum
- the peak of the first light is normalized sunlight It may have a deviation of about 0.14 or less compared to the spectrum.
- the first light may have an effect similar to the case of being frequently exposed to sunlight by having a spectrum similar to that of sunlight, and thus the synthesis of vitamin D may be facilitated or the prevalence of diseases such as myopia may be lowered. have.
- the light irradiation apparatus may be implemented in various forms.
- 7A is a plan view of a light irradiation apparatus according to an embodiment of the present invention
- FIG. 7B is a cross-sectional view taken along line I-I' of FIG. 7A.
- the first light source 30, the second light source 40, and the first and second light sources 30 and 40 are mounted in the light irradiation device according to an embodiment of the present invention. It may include a substrate 20.
- a plurality of first light sources 30 may be provided, and a plurality of second light sources 40 may also be provided.
- the first light sources 30 and the second light sources 40 may be provided in equal numbers, and as shown, may be alternately arranged in a row form.
- the number of the first and second light sources 30 and 40 is not limited thereto, and the number of the first light sources 30 may be more or less than the number of the second light sources 40.
- the number of the first light source 30 and the second light source 40 it may be arranged regularly or irregularly.
- the light irradiation apparatus may further include a housing accommodating the first and second light sources 30 and 40 and the substrate 20.
- the housing may be provided with a transmission window through which light emitted from the first and second light sources 30 and 40 is transmitted, and light emitted from the first and second light sources 30 and 40 may be provided through the transmission window. Light can be provided to the side.
- control unit 50 is formed in various forms, for example, as separate circuit wirings on the substrate 20, or as a separate chip to form the substrate 20 It may be provided in the form of being mounted on the top.
- the sterilizing device can be applied to various other devices that require sterilization, and in particular to a device using a light source. Further, it may be used as a lighting device that is not used exclusively for a sterilizing device.
- the sterilization device may further include an additional light source for illumination providing light in a predetermined space, and in this case, the additional light source may emit light in a visible light wavelength band.
- the additional light source may emit light corresponding to the entire spectrum of the visible light region, or may emit light corresponding to the spectrum of a specific color.
- the first light source may emit light in the visible light wavelength band including light in the blue wavelength band without a separate additional light source.
- the first light source emits light in a wavelength range of about 380 nm to about 750 nm, and most of them correspond to a wavelength range of visible light.
- the first light source includes light in the blue wavelength band synergistically combined with the second light while providing the light in the visible light wavelength band as a whole, and thus a sterilizing effect as in the above-described embodiments can be obtained. .
- the light when an additional light source that emits light in the visible light wavelength band is provided, or when the first light source emits light in the visible light wavelength band, the light may have a spectrum similar to that of sunlight.
- the light When the light has a spectrum similar to that of sunlight, it may have the same effect as being frequently exposed to sunlight, and thus the synthesis of vitamin D may be facilitated or the prevalence of diseases such as myopia may be lowered.
- FIG. 7A is a plan view of a light emitting device according to an embodiment of the present invention
- FIG. 7B is a cross-sectional view taken along line I-I' of FIG. 7A.
- a light emitting device includes a first light source 30, a second light source 40, and first and second light sources 30 and 40 mounted thereon. It may include a substrate 20.
- a plurality of first light sources 30 may be provided, and a plurality of second light sources 40 may also be provided.
- the first light sources 30 and the second light sources 40 may be provided in equal numbers, and as shown, may be alternately arranged in a row form.
- the number of the first and second light sources 30 and 40 is not limited thereto, and the number of the first light sources 30 may be more or less than the number of the second light sources 40.
- the number of the first light source 30 and the second light source 40 it may be arranged regularly or irregularly.
- the light emitting device may further include a housing accommodating the first and second light sources 30 and 40 and the substrate 20.
- the housing may be provided with a transmission window through which light emitted from the first and second light sources 30 and 40 is transmitted, and light emitted from the first and second light sources 30 and 40 may be provided through the transmission window. Light can be provided to the side.
- control unit 50 is formed in various forms, for example, as separate circuit wirings on the substrate 20, or as a separate chip to form the substrate 20 It may be provided in the form of being mounted on the top.
- the light emitting device may be implemented in various forms and used for various purposes.
- the light emitting device according to an embodiment of the present invention can be variously applied where lighting and sterilization are required, and may be used as a lighting device.
- it can be used in medical facilities such as operating rooms, hospitals, lighting devices for public health or personal hygiene.
- the lighting device according to an embodiment of the present invention can be used for patient treatment purposes.
- the lighting device of the present invention can be used for public treatment purposes by applying to public facilities, public use spaces, and common use products, or can be used for personal treatment purposes by applying to personal facilities, personal use spaces, and personal use products.
- FIG 8 and 9 are examples illustrating an example in which a lighting device according to an embodiment of the present invention is implemented as a product.
- the lighting device includes a light emitting device 100 that emits light, a housing 300 in which the light emitting device 100 is accommodated, and a window 210 provided on an upper part of the light emitting device And a fixing member 220 fixing the window 210 and the housing 300.
- the housing 300 is not limited as long as it accommodates and supports the light emitting device 100 and can supply electrical power to the light emitting device.
- the housing 300 may include a main body 310, a power supply device 320, a power case 330, and a power connection 340.
- the power supply device 320 is accommodated in the power case 330 and electrically connected to the light emitting device 100, and may include at least one IC chip.
- the IC chip can adjust, convert, or control characteristics of power supplied to the light emitting device 100.
- the power case 330 may receive and support the power supply 320, and the power case 330 to which the power supply 320 is fixed may be located inside the main body 310.
- the power connection unit 340 is disposed at the bottom of the power case 330 and can be bound to the power case 330. Accordingly, the power connection unit 340 is electrically connected to the power supply unit 320 inside the power case 330, and may serve as a passage through which external power can be supplied to the power supply unit 320.
- the light emitting device 100 includes a substrate 20 and first and second light sources 30 and 40 disposed on the substrate 20, and may have a shape according to the above-described embodiments.
- the light emitting device 100 is provided on the main body 310 and may be electrically connected to the power supply device 320.
- the substrate 20 may have a shape corresponding to the fixing member 220 above the main body 310 to be stably fixed to the main body 310.
- the window 210 may be disposed on the housing 300 to cover the top of the light emitting device 100.
- the window 210 is disposed on the light emitting device 100, and is fixed to the main body 310 to cover the light emitting device 100.
- the window 210 may be provided with a lens member 211 that facilitates diffusion of light from the light emitting device 100.
- the window 210 may have a light-transmitting material, and control the shape and light transmittance of the window 210 to control the directional characteristics of the lighting device. Therefore, the window 210 may be modified in various forms according to the purpose of use of the lighting device and the aspect of application.
- the fixing member 220 may be provided on the window 210 to fasten the window 210, the light emitting device 100, and the body 310.
- the lighting device having the above-described structure can be mounted on various light treatment devices.
- it may be used as a lighting device mounted on a wall or ceiling forming a predetermined space (for example, a chamber).
- the lighting device according to an embodiment of the present invention may be implemented in a form that can be used in real life.
- the lighting device 1000 ′ surrounds the pedestal 530, the light emitting device 100 emitting light, the support 520 and the light emitting device 100. It may be configured to include a reflector 400.
- the lighting stand according to another embodiment of the present invention may be disposed on various treatment devices.
- An input device 530 for controlling the operation of the lighting stand may be disposed on the surface of the pedestal 510.
- the pedestal 510 is fixed by connecting the substrate 20 on which the light emitting device 100 is disposed and the support 520.
- the base 510 allows power to be supplied to the light emitting device through the power supply unit 600.
- the support 520 may be provided between the pedestal 510 and the substrate 20 on which the light emitting device 100 is disposed, and an electric wire (not shown) for supplying power.
- the support 520 is illustrated as being formed of a single rigid member, the present invention is not limited thereto, and is formed of a bendable member capable of bending at least once or made of a flexible member in various shapes. It may be changed.
- the support 520 is deformed by a certain degree of external force, but in the absence of an external force, the shape may be maintained to a degree of ductility.
- a person may change some shapes of the wiring unit 130 by applying an external force to the wiring unit 130, but when the external force is removed, the wiring unit 130 is the final shape immediately after the external force is applied. This can be maintained.
- the support 520 may be provided in the form of bellows.
- the reflector 400 surrounding the light emitting device 100 may be made of a metal material such as aluminum that can reflect the light source emitted from the light emitting device and increase the illuminance, or may include a material capable of transmitting light.
- a coating layer including a photocatalytic material may be formed on the inner surface of the reflector 400.
- the photocatalytic material may be made of at least one of TiO 2 , ZnO, ZrO 2 and WO 3 .
- FIG. 10 is a graph showing a sterilization effect according to irradiation conditions when light is applied to a sterilization object using a light emitting device according to an embodiment of the present invention and the present invention.
- the bacterium used as the object of sterilization is Staphylococcus aureus, and the Staphylococcus aureus is spread on a bacterial culture medium and cultured at 35-37° C. for one day, and the bacterial colonies formed on the bacterial culture medium are collected. Then, centrifuged, discarded the supernatant, and again added physiological saline, and diluted to prepare a bacterial solution with a concentration suitable for the sterilization experiment.
- the bacterial liquid thus prepared was placed in a separate container, and the light emitting device according to an embodiment of the present invention and the present invention was installed at a specific distance from the container, and then light was sequentially irradiated. Next, after diluting the bacterial solution with light irradiation, evenly apply it onto the bacterial culture medium, incubate at 35-37°C for one day, check the colonies formed on the bacterial culture medium, multiply it by the dilution factor, and count for the sterilization effect. Results were obtained.
- the x-axis represents the dose amount of the first and second light
- the y-axis represents the degree of inactivation of bacteria on a logarithmic scale.
- Comparative Example 1 only the second light was applied to the bacteria, and light in the 275 nm wavelength band was applied to the bacteria.
- Comparative Example 2 only the first light was applied to the bacteria, and light having a wavelength of 405 nm was applied to the bacteria.
- Comparative Example 3 the first light in the 405 nm wavelength band was applied to the bacteria after the second light in the 275 nm wavelength band was applied.
- the second light in the 275 nm wavelength band was applied.
- the second light in the 275 nm wavelength band was applied only with a dose of 3 mJ/cm 2
- Comparative Example 3 and Example the wavelength of 405 nm, respectively.
- the dose amount of the first light in the band that is, 30 J/cm 2 , 60 J/cm 2 , 90 J/cm 2 , 120 mJ/cm 2 , and a dose amount of 150 J/cm 2 were applied, 275 nm
- the second light in the wavelength band was applied with a dose of 3 mJ/cm 2 .
- the dose was lower than the first light in consideration of the allowable dose to the human body.
- the degree of inactivation was about 1.5 (log CFU/ml) when applied with a dose of 3 mJ/cm 2
- Comparative Example 2 In the case of applying only the first light to the bacteria, the degree of inactivation was about 1 (log CFU/ml) when applied with a dose of 30 J/cm 2 .
- the degree of inactivation was about 1.5 (log CFU/ml).
- the degree of inactivation was very high at about 4 (log CFU/ml). It showed a sterilizing effect.
- Comparative Example 3 and Example only the order of the first light and the second light is different, and although the same amount was irradiated to the bacteria, it can be confirmed that the actual sterilization degree showed a significant effect difference.
- the dose amount of the first light was the same as the dose amount of 60 J/cm 2, and the sterilizing effect of the Example was significantly higher than that of Comparative Example 2 or Comparative Example 3 .
- Comparative Example 3 and Example show a stagnant value of about 6 (log CFU/ml), which can be sterilized under laboratory conditions without introduction of new bacteria. It can be judged that there are no more bacteria. Accordingly, it can be predicted that the sterilizing effect of the Examples will be significantly higher than those of Comparative Examples 1 to 3 in the open external conditions in which the introduction of new bacteria continuously occurs.
- Table 2 below shows the minimum dose amount for obtaining the desired degree of sterilization in Comparative Examples 1 to 3 and Examples.
- Comparative Example 1 only the second light was applied to the bacteria, and light in the 275 nm wavelength band was applied to the bacteria.
- Comparative Example 2 only the first light was applied to the bacteria, and light having a wavelength of 405 nm was applied to the bacteria.
- Comparative Example 3 the first light in the 405 nm wavelength band was applied to the bacteria after the second light in the 275 nm wavelength band was applied.
- the second light in the 275 nm wavelength band was applied.
- the light emitting device according to the embodiment of the present invention exhibits a significantly higher sterilizing effect than the existing invention.
- the MRSA strain was used as a pathogen, and after culturing the MRSA strain, a suspension having a constant fungal concentration (7 log) was prepared.
- the first light and the second light were irradiated to the bacterial suspension by light amount, respectively.
- the wavelength of the first light was 405 nm
- the wavelength of the second light was 275 nm.
- the bacteria irradiated with the first light and the second light were each diluted to a certain concentration, inoculated into agar plates, and cultured again. Then, the number of colonies of the cultured bacteria was checked and the values were converted into log values. Each test was conducted under the same conditions over five times.
- Table 2 and Figure 11a shows the results of testing the sterilizing power of the first light
- Table 3 and Figure 11b shows the results of testing the sterilizing power of the second light.
- the MRSA strain was used as a pathogen, and after culturing the MRSA strain, a suspension having a constant fungal concentration (7 log) was prepared.
- the fungal suspension was irradiated by combining the first light alone, the second light alone, and the first light and the second light.
- Comparative Example 1 was irradiated with nothing on the fungal suspension
- Comparative Example 2 was irradiated with the second light alone.
- Comparative example 3 irradiated with the first light alone, and example irradiated with the combination of the first light and the second light are shown as examples.
- the wavelength of the first light was 405 nm
- the dose amount was 120 J/cm 2
- the wavelength of the second light was 275 nm
- the dose amount was 3 mJ/cm 2
- the second light was irradiated with a dose of 3 mJ/cm 2 and then the first light was irradiated with a dose of 120 J/cm 2 .
- the bacteria of Comparative Examples 1 to 3 and Examples were diluted to a certain concentration, and inoculated into agar plates, and then cultured again. Then, the number of colonies of the cultured bacteria was checked and the values were converted into log values.
- FIGS. 12A and 4 show the number of bacteria when irradiated with the first light and the second light alone, respectively, and when the first and second light are irradiated in combination
- FIGS. 12B and 5 show the first light and It shows the sterilizing power when irradiated with the second light alone and irradiated with the first and second light combined respectively.
- the second light alone showed about 90% sterilization power
- the first light alone showed about 99% sterilization power.
- it showed a sterilizing power of 99.99% or more.
- the MRSA strain was used as a pathogen, and after culturing the MRSA strain, a suspension having a constant fungal concentration (7 log) was prepared.
- the fungal suspension was irradiated with a first light after second light irradiation, and irradiated with a second light after first light irradiation. Comparative Example 1 in which nothing was irradiated to the bacterial suspension, Example 1 in which the first light was irradiated after the second light irradiation, and Example 2 in which the second light was irradiated after the first light irradiation was shown.
- Example 2 the second light of 275 nm was irradiated with a dose amount of 3 mJ/cm 2 , and the first light of 405 nm was irradiated with a dose amount of 120 J/cm 2 , and in Example 2, the second light of 405 nm was produced. After irradiating 1 light with a dose of 120 J/cm 2 , a second light of 275 nm was irradiated with a dose of 3 mJ/cm 2 .
- FIG. 13A and Table 6 show the number of bacteria when the combination order of the first light and the second light is differently set and irradiated
- FIG. 13B and Table 7 show the combination order of the first light and the second light is differently set and irradiated It shows the sterilizing power in the case.
- Example 2 Number of bacteria (log) 7.00 2.83 0.00 error 0.00 0.37 0.00
- Example 2 Sterilization power 0.00 4.17 7.00 error 0.00 0.37 0.00
- Example 1 shows a sterilizing power of 99.99%, whereas in Example 2, no bacteria were observed and substantially complete sterilization was confirmed. , When irradiating the second light after irradiating the first light, it showed a significantly higher sterilizing power at the same irradiated light amount than vice versa. It means that sterilizing power can be obtained. Since the application of a smaller amount of light means that the light irradiation time is shortened, in the case of Example 2, the light irradiation time may be shorter than that of Example 1.
- the number of bacteria and the sterilizing power of bacteria are changed by changing the amount of light during the sequential irradiation of the first and second lights to find the optimum light amount of each light source. It was measured under in vitro conditions.
- the MRSA strain was used as a pathogen, and after culturing the MRSA strain, a suspension having a constant fungal concentration (7 log) was prepared.
- the first light and the second light were sequentially irradiated by changing the dose amount of the first light to 30 J/cm 2 , 60 J/cm 2 , 90 J/cm 2 , and 120 J/cm 2 .
- the light of 275 nm was limited to a dose of 3 mJ/cm 2 in consideration of the human body allowance level.
- the bacteria were diluted to a certain concentration, inoculated into agar plates, and cultured again. Then, the number of colonies of the cultured bacteria was checked and the values were converted into log values.
- FIGS. 14A and 8 show the number of bacteria when the first light and the second light are sequentially irradiated, but the amount of the first light is different, and FIGS. 14B and 9 sequentially irradiate the first light and the second light However, it shows the sterilizing power when the light amount of the first light is different.
- Example 4 when the dose amount of the second light (405 nm) is 3 mJ/cm 2 and the dose amount of the first light (275 nm) is 120 J/cm 2 , it was confirmed that sterilization is completely performed. It was tested for sterilization effect.
- mice were a BALB/c mouse (6-8 weeks old), and after shaving the back of the mouse, a wound having a diameter of 10 mm was created on the back. After inoculating (5 log inoculation) the pathogenic bacteria on the wound, the dose of the first light was changed to 30 J/cm 2 , 60 J/cm 2 , 90 J/cm 2 , 120 J/cm 2 and the first light The second light was sequentially irradiated.
- the light of 275 nm was limited to a dose of 3 mJ/cm 2 in consideration of the human body allowance level.
- the tissues were harvested, the harvested tissues were crushed, diluted to a certain concentration, inoculated into agar plates, and cultured again. Then, the number of colonies of the cultured bacteria was checked, and the value was converted into a logarithmic value.
- FIGS. 15A and Table 10 show the number of bacteria when the first light and the second light are sequentially irradiated but the amount of the first light is different, and FIGS. 15B and 11 sequentially irradiate the first light and the second light However, it shows the sterilizing power when the amount of light of the first light is different.
- Example 5 the dose of light for sterilization under in vivo conditions was confirmed. Based on this, the change in sterilization power and number of bacteria over time in in vivo conditions was tested.
- mice This test was conducted using mice.
- the mouse was a BALB/c mouse (6-8 weeks old), and after shaving the back of the mouse, a wound having a diameter of 10 mm was created on the back.
- the dose of the first light (405 nm) is 120 J/cm 2
- the first light and the second light are sequentially irradiated 6 times at the same time every day.
- the light of 275 nm was limited to a dose of 3 mJ/cm 2 in consideration of the human body allowance level.
- the tissues were collected, the tissues were crushed, diluted to a certain concentration, inoculated into agar plates, and cultured again. Then, the number of colonies of the cultured bacteria was checked and the values were converted into log values. In the case of the number of bacteria, the amount was detected up to 3 times for light irradiation to confirm the initial sterilization power.
- FIGS. 17 and 13 show the result of measuring the number of bacteria against the date in the in vivo condition.
- the comparative example is a group irradiated with no light, and the example corresponds to a group irradiated with light.
- Example 5 the dose of light for sterilization under in vivo conditions was confirmed. Based on this, the effect of wound healing by light irradiation under in vivo conditions was tested.
- mice This test was conducted using mice.
- the mouse was a BALB/c mouse (6-8 weeks old), and after shaving the back of the mouse, a wound having a diameter of 10 mm was created on the back.
- the dose of the first light (405 nm) is 120 J/cm 2
- the first light and the second light are sequentially irradiated 6 times at the same time every day.
- the light of 275 nm was limited to a dose of 3 mJ/cm 2 in consideration of the human body allowance level.
- FIG. 18 and Table 14 show the change in wound area according to the date in in vivo conditions.
- the comparative example is a group irradiated with no light, and the example corresponds to a group irradiated with light.
- 19A and 19B are photographs photographing the shape of the wound area according to the date, FIG. 19A is photographs of the wounds of the irradiated group, and FIG. 19B is photographs of the wounds of the irradiated group.
- FIGS. 19A and 19B the healing of the wound was not visually observed until day 2 after the wound, and the number of bacteria in the wound was significantly reduced, which could be seen as a step in which sterilization proceeds.
- the scab was formed from the 2nd day after the wound, and thereafter, the area of the wound gradually decreased, so that the wound healing progressed from the 2nd day after the wound.
- the scab eliminates exposure to the outside of the wound, so additional infections are less weekly.
- the time when the area of the wound was reduced to 50% was only 6 days in the light irradiation group, but it took 10 days in the irradiated group.
- the light irradiated group had epithelialization on the 15th day, but the irradiated group still did not have epithelialization on the 15th.
- mice This test was conducted using mice.
- the mouse was a BALB/c mouse (6-8 weeks of age), and after shaving the back of the mouse, a punch having a diameter of 10 mm was created on the back using a punch. After irradiating the wound with light, the tissue was collected, the tissue collected with formalin and paraffin was fixed, and a section was taken.
- the control group was an irradiated group without light treatment
- Experimental Group 1 was an irradiated group treated with excess UVC
- Experimental Group 2 had a dose of first light (405 nm) of 120 J/cm 2
- 16A and Table 15 show the content of thymine dimer in tissue as a percentage. 20A and Table 15, thymine dimer was found in experimental group 1, but thymine dimer was not found in experimental group 2. As a result, it was confirmed that the DNA conditions did not occur even when irradiated to uninfected tissues under the optical conditions applied in one embodiment of the present invention.
- ROS free radicals
- mice This test was conducted using mice.
- the mouse was a BALB/c mouse (6-8 weeks of age), and after shaving the back of the mouse, a punch having a diameter of 10 mm was created on the back using a punch.
- DCFH-DA Dichlorofluorescin diacetate
- DCFH-DA was treated on the light irradiation site, and then the amount of emission of the portion stained with DCFH-DA was measured to confirm whether ROS.
- DCFH-DA is oxidized by ROS in cells and fluoresces.
- the absorption wavelength during excitation of DCFH-DA is 445 to 490 nm, and the fluorescence emission wavelength is 515 to 575 nm.
- control group is a group without any additional treatment
- the experimental group 1 is a hydrogen peroxide treatment group
- the experimental group 2 has a dose of the first light (405 nm) of 120 J/cm 2
- a dose of the second light (275 nm). It was a treatment group which was investigated sequentially by limiting to 3 mJ/cm 2 .
- 20B and Table 16 show the luminous intensity of the portion stained with DCFH-DA. 20B and Table 16, in Experimental Group 2, fluorescence occurred in Experimental Group 1 to confirm the presence of ROS, but in Experimental Group 2, it was determined that there was no ROS because fluorescence did not appear. Thus, it was confirmed that ROS did not occur even when irradiated to uninfected tissues in the light condition applied in one embodiment of the present invention.
- Control Experiment group 1 Experiment group 2 RLU (relative light units) 0 1.5 0 error 0 0.3 0
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Abstract
Description
살균성능 | 실시예 | 비교예 1 | 비교예 2 | 비교예 3 |
1 log 살균(90% 살균) | 7 J/cm2±10% | 2mJ/cm2±10% | 30J/cm2±10% | 20J/cm2±10% |
2 log 살균(99% 살균) | 15J/cm2±10% | 4mJ/cm2±10% | 65J/cm2±10% | 40J/cm2±10% |
3 log 살균(99.9% 살균) | 25J/cm2±10% | 8mJ/cm2±10% | 110J/cm2±10% | 60J/cm2±10% |
광량 (J/cm2) | 0 | 30 | 60 | 90 | 120 |
균 수 (log) | 7.00 | 5.97 | 5.78 | 5.15 | 4.17 |
오차 | 0.00 | 0.32 | 0.35 | 0.43 | 0.29 |
광량 (mJ/cm2) | 0 | 1 | 2 | 3 |
균 수 (log) | 7.00 | 6.23 | 5.88 | 5.45 |
오차 | 0.00 | 0.23 | 0.27 | 0.18 |
광 조건 | 비교예 1 | 비교예 2 | 비교예 3 | 실시예 |
균 수 (log) | 7.00 | 5.45 | 4.17 | 2.83 |
오차 | 0.00 | 0.18 | 0.29 | 0.37 |
광 조건 | 비교예 1 | 비교예 2 | 비교예 3 | 실시예 |
살균력 | 0.00 | 1.55 | 2.83 | 4.17 |
오차 | 0.00 | 0.18 | 0.29 | 0.37 |
광 조건 | 비교예 | 실시예 1 | 실시예 2 |
균 수 (log) | 7.00 | 2.83 | 0.00 |
오차 | 0.00 | 0.37 | 0.00 |
광 조건 | 비교예 | 실시예 1 | 실시예 2 |
살균력 | 0.00 | 4.17 | 7.00 |
오차 | 0.00 | 0.37 | 0.00 |
광량 (J/cm2) | 0 | 30 | 60 | 90 | 120 |
균 수 (log) | 7.00 | 3.47 | 2.13 | 1.70 | 0.00 |
오차 | 0.00 | 0.13 | 0.27 | 0.22 | 0.00 |
광량 (J/cm2) | 0 | 30 | 60 | 90 | 120 |
살균력 | 0.00 | 3.53 | 4.87 | 5.03 | 7.00 |
오차 | 0.00 | 0.13 | 0.27 | 0.22 | 0.00 |
광량 (J/cm2) | 0 | 30 | 60 | 90 | 120 |
균 수 (log) | 5.00 | 3.17 | 3.32 | 1.48 | 0.00 |
오차 | 0.00 | 0.36 | 0.38 | 0.31 | 0.00 |
광량 (J/cm2) | 0 | 30 | 60 | 90 | 120 |
살균력 | 0.00 | 1.83 | 1.68 | 3.52 | 5.00 |
오차 | 0.00 | 0.36 | 0.38 | 0.31 | 0.00 |
Day | 접종 | 0 | 1 | 2 |
살균력 | 0.00 | 5.00 | 4.09 | 5.29 |
오차 | 0.00 | 0.00 | 0.13 | 0.09 |
균 수 (%) | 균 수 (log) | |||||||
Day | 접종 | 0 | 1 | 2 | 접종 | 0 | 1 | 2 |
무조사군 | 100 | 100 | 4,466 | 173,780 | 5.00 | 5.00 | 6.65 | 8.24 |
광조사군 | 100 | 0 | 0.36 | 0.89 | 5.00 | 0.00 | 2.56 | 2.95 |
Day | 접종 | 0 | 2 | 3 | 6 | 10 | 15 |
무조사군 | 100.0 | 100.0 | 108.8 | 93.8 | 83.3 | 55.9 | 22.4 |
오차 | 7.8 | 7.8 | 7.0 | 5.0 | 3.8 | 2.7 | 4.2 |
광조사군 | 100.0 | 100.0 | 101.0 | 82.1 | 50.3 | 28.8 | 0.0 |
오차 | 7.8 | 7.8 | 4.1 | 3.6 | 1.9 | 3.2 | 0.0 |
대조군 | 실험군1 | 실험군2 | |
함량(%) | 2 | 58 | 3 |
오차 | 1 | 8 | 1 |
대조군 | 실험군1 | 실험군2 | |
발광정도(RLU; relative light units) | 0 | 1.5 | 0 |
오차 | 0 | 0.3 | 0 |
Claims (20)
- 하우징;상기 하우징 내에 제공된 기판; 및상기 기판 상에 실장된 광원을 포함하고,상기 광원은,적어도 1개 이상으로 제공되며 블루 파장 대역의 제1 광을 출사하는 제1 광원;적어도 1개 이상으로 제공되며 자외선 파장 대역의 제2 광을 출사하는 제2 광원; 및상기 제1 광과 상기 제2 광이 순차적으로, 또는, 중첩하여, 또는 중첩하지는 않더라도 근접한 시기에 출사되도록 상기 제1 광원 및 제2 광원의 발광 여부를 제어하는 제어부를 포함하며,상기 제2 광원의 도즈량은 상기 제1 광원의 도즈량의 1/10 보다 작은 광 조사 장치.
- 제1 항에 있어서,상기 제어부는 상기 제1 광의 출사 시작 후 상기 제2 광이 출사되도록 상기 제1 및 제2 광원을 제어하는 광 조사 장치.
- 제1 항에 있어서,상기 제2 광은 UVA, UVB, 및 UVC 파장 대역 중 적어도 하나의 파장 대역에 해당하는 광 조사 장치.
- 제2 항에 있어서,상기 제1 광은 약 400nm 내지 약 500nm의 파장 대역을 갖는 광 조사 장치.
- 제1 항에 있어서,상기 제1 광은 가시광선에 대응하는 파장 대역의 광을 더 포함하는 광 조사 장치.
- 제5 항에 있어서,상기 제1 광은 약 380nm 내지 약 780nm 파장 대역을 갖는 광 조사 장치.
- 제1 항에 있어서,상기 제2 광은 약 240nm 내지 약 280nm의 파장 대역을 갖는 광 조사 장치.
- 제7 항에 있어서,상기 제1 광은 제1 시간 동안 조사되고, 상기 제2 광은 상기 제1 시간보다 짧은 제2 시간 동안 조사되는 광 조사 장치.
- 제8 항에 있어서,상기 제2 광은 상기 제1 광의 조사가 완료된 후 조사가 시작되는 광 조사 장치.
- 제8 항에 있어서,상기 제2 광은 상기 제1 광의 조사가 완료되기 전 조사가 시작되며 상기 제1 시간과 상기 제2 시간의 적어도 일부는 서로 중첩하는 구간을 갖는 광 조사 장치.
- 제8 항에 있어서,상기 제1 광은 연속적으로 조사되는 광 조사 장치.
- 제8 항에 있어서,상기 제2 광은 불연속적으로 조사되는 광 조사 장치.
- 제8 항에 있어서,상기 제2 광은 주기적으로 조사되는 광 조사 장치.
- 제1 항에 있어서,상기 광 조사 장치는 인체 치료용인 광 조사 장치.
- 제14 항에 있어서,상기 광 조사 장치는 급성 창상 치료용인 광 조사 장치.
- 제1 항에 있어서,상기 제2 광이 인체에 인가될 때 하루당 무해한 범위의 도즈량을 허용 도즈량이라고 하면, 상기 제2 광원은 허용 도즈량 내에서 상기 제2 광을 출사하는 광 조사 장치.
- 제16 항에 있어서,상기 제2 광은 약 30 J/m2 내지 약 1,000,000 J/m2의 도즈량으로 조사되는 광 조사 장치.
- 적어도 1개 이상으로 제공되며 블루 파장 대역의 제1 광을 출사하는 제1 광원;적어도 1개 이상으로 제공되며 자외선 파장 대역의 제2 광을 출사하는 제2 광원; 및상기 제1 광원의 출사 후 상기 제2 광원이 순차적으로 출사되도록 상기 제1 및 제2 광원을 제어하는 제어부를 포함하며, 상기 제2 광원의 도즈량은 상기 제1 광원의 도즈량 대비 1/10 이내인 치료용 광 조사 장치.
- 제18 항에 있어서,상기 제1 광은 약 약 400nm 내지 약 500nm의 파장 대역을 가지며, 상기 제2 광은 약 240nm 내지 약 280nm의 파장 대역을 가지는 치료용 광 조사 장치.
- 제19 항에 있어서,상기 제1 광은 제1 시간 동안 조사되고, 상기 제2 광은 상기 제1 시간보다 짧은 제2 시간 동안 조사되는 치료용 광 조사 장치.
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CN202080004267.1A CN112512629A (zh) | 2019-01-23 | 2020-01-23 | 光照射装置 |
EP20744759.0A EP3915635A4 (en) | 2019-01-23 | 2020-01-23 | LIGHT IRRADIATION DEVICE |
JP2021543131A JP2022519820A (ja) | 2019-01-23 | 2020-01-23 | 光照射装置 |
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US62/825,993 | 2019-03-29 | ||
US16/747,688 | 2020-01-21 | ||
US16/747,688 US20200230435A1 (en) | 2019-01-23 | 2020-01-21 | Light radiation device for medical treatment |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030153962A1 (en) * | 2002-02-11 | 2003-08-14 | Cumbie William Emmett | Method for the prevention and treatment of skin and nail infections |
KR101515992B1 (ko) * | 2015-02-09 | 2015-05-06 | (주)씨엘라이트 | 휴대용 피부 치료기기 |
US20160015962A1 (en) * | 2014-07-16 | 2016-01-21 | Mehdi Shokoueinejad Maragheh | Smart Patch For Wound Management |
US20180093107A1 (en) * | 2016-09-30 | 2018-04-05 | Gliese 623B, LLC | System and Method For Healing and/or Disinfecting Wounds and Burns |
KR20180067499A (ko) * | 2015-07-14 | 2018-06-20 | 비타빔 엘티디. | 위생, 소독 및 멸균을 위한 방법 및 장치 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8128672B2 (en) * | 2006-05-09 | 2012-03-06 | Thermotek, Inc. | Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation |
US8109981B2 (en) * | 2005-01-25 | 2012-02-07 | Valam Corporation | Optical therapies and devices |
CN101687099B (zh) * | 2007-07-05 | 2013-10-30 | 皇家飞利浦电子股份有限公司 | 皮肤处理设备和灯 |
US20100179469A1 (en) * | 2009-01-05 | 2010-07-15 | Plextronics, Inc. | Organic Light Emitting Diode Phototherapy Lighting System |
JP5534331B2 (ja) * | 2010-07-30 | 2014-06-25 | カシオ計算機株式会社 | 光源ユニット及びプロジェクタ |
-
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030153962A1 (en) * | 2002-02-11 | 2003-08-14 | Cumbie William Emmett | Method for the prevention and treatment of skin and nail infections |
US20160015962A1 (en) * | 2014-07-16 | 2016-01-21 | Mehdi Shokoueinejad Maragheh | Smart Patch For Wound Management |
KR101515992B1 (ko) * | 2015-02-09 | 2015-05-06 | (주)씨엘라이트 | 휴대용 피부 치료기기 |
KR20180067499A (ko) * | 2015-07-14 | 2018-06-20 | 비타빔 엘티디. | 위생, 소독 및 멸균을 위한 방법 및 장치 |
US20180093107A1 (en) * | 2016-09-30 | 2018-04-05 | Gliese 623B, LLC | System and Method For Healing and/or Disinfecting Wounds and Burns |
Non-Patent Citations (1)
Title |
---|
See also references of EP3915635A4 * |
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EP3915635A4 (en) | 2022-12-07 |
CA3127589A1 (en) | 2020-07-30 |
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