• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The object of the present invention is a protective mask comprising an antibacterial and anti-virus filtering element (12) and incorporating at least one UV-C LED source (18) suitable for applying to the filtering element a quantity of UV-C radiation suitable for degrading the genetic material of bacterial cells and viral particles accumulated in the filter element.
    公开号:CH717355A2
    申请号:CH00381/21
    申请日:2021-04-14
    公开日:2021-10-29
    发明作者:Aliverti Stefano；Librandi Gianfranco；Molinaro Lorenzo
    申请人:Lit Led Innovation Tech Sagl；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an individual protection mask equipped with an antibacterial and anti-virus filter and provided with suitable devices for periodically sterilizing the filter while it is being worn by an operator.
    [0002] As is known, healthcare workers are exposed to the risk of contracting diseases and infections due to exposure to viruses to bacteria transmitted by visiting and treated patients.
    [0003] In order to avoid the risk of contracting diseases, suitable individual protection devices are necessary to prevent viruses and bacteria from coming into contact with the operator. One of the devices used is constituted by protective masks equipped with filtering structures capable of passing the air necessary for breathing and at the same time blocking the passage of particles, viruses and bacteria.
    [0004] In a typical configuration, the filter element is made of a material having a structure suitable for blocking the passage of particles having a diameter greater than a predefined limit. The particles are not destroyed, but are retained and accumulate inside the filter.
    [0005] The filtering is never complete, and in fact it is expressed as a percentage of blocked particles having a size greater than a certain diameter. For example, according to current regulations a standard mask classified FFP3 is able to block over 99% of particles having a diameter greater than 0.6um.
    [0006] During use, with the accumulation of viruses and bacteria inside the filter, the viral load that accumulates in the filter gradually increases the risk of transfer to the internal side and therefore to the operator.
    [0007] Most masks can no longer be reused once removed from the face. In fact, they are therefore disposable protective devices.
    [0008] In order to try to obviate such a drawback, masks equipped with a replaceable filter element have been specially developed. These masks have a window that can be opened to replace the filter inserted inside them.
    [0009] However, the filter replacement operation requires time and above all precautions, to avoid the risk of contamination by viruses and / or bacteria accumulated on the external side.
    [0010] In many situations it may be necessary to carry out this maneuver even more times during the working day.
    [0011] The object of the present invention is to propose a protective mask capable of at least partially obviating the drawbacks mentioned above.
    [0012] This object is achieved with a protective mask in accordance with claim 1. The dependent claims describe preferred or advantageous embodiments of the mask.
    [0013] In accordance with claim 1, the protection mask incorporates a LED source capable of emitting UV-C radiation suitable for sterilizing the filtering structure of the mask.
    [0014] The protective mask therefore comprises an antibacterial and anti-virus filter element, and incorporates at least one UV-C LED source suitable for applying to the filter element a quantity of UV-C radiation suitable for degrading the genetic material of bacterial cells and viral particles accumulated in the filter element.
    In one embodiment, the UV-C LED source is positioned to irradiate at least one outer surface of the filter element.
    In one embodiment, the UV-C LED source is positioned to irradiate the side of the filter element facing the operator wearing the mask.
    In one embodiment, the mask integrates two UV-C LED sources, one adapted to irradiate a respective side of two opposite sides of the filter element.
    [0018] In one embodiment, the material of the filter element is chosen in such a way as to allow an at least partial passage of UV-C radiation through this material.
    In one embodiment, the UV-C LED source is powered by a battery.
    In one embodiment, the mask comprises a first shielding element suitable for protecting the operator wearing the mask from UV-C radiation.
    [0021] In one embodiment, the mask comprises a second shielding element suitable for reducing the emission of UV-C radiation towards the outside of the mask.
    In one embodiment, the UV-C LED source is manually operable.
    [0023] In one embodiment, the UV-C LED source can be operated in automatic mode by means of a timer which during use applies sterilizing UV-C radiation pulses at predefined time intervals.
    [0024] Therefore, the mask according to the invention, by neutralizing the bacterial load accumulated inside the filter, reduces the risk of exposure to viruses / bacteria by the operator wearing it, with the double advantage of reducing the periodic replacements of the filter throughout the working day and at the same time reduce the risk of contamination by the personnel using the mask.
    [0025] The characteristics and advantages of the protective mask according to the invention will in any case be evident from the description given below of its preferred embodiment examples, given by way of non-limiting example, with reference to the attached figure 1, which shows a view to separate parts of the mask in a possible embodiment.
    [0026] In said drawings, 1 indicates a protection mask according to the invention as a whole.
    [0027] The mask 1 comprises a mask body 10 that can be worn by an operator, a filter element 12 suitable for blocking the particles of a bacterium or a virus, and a mask cap 14 which can be connected, preferably in a removable way, to the mask body 10, so as to form with the mask body 10 a filter seat 16 suitable for housing the filter element 12.
    [0028] In accordance with the invention, the mask 10 also incorporates at least one UV-C LED source 18 suitable for applying to the filter element 12 a quantity of UV-C radiation suitable for degrading the genetic material of bacterial cells and particles virals accumulated in the filter element 12.
    [0029] By UV-C radiations we mean optical radiations having a wavelength in the range 100nm-280nm, therefore having an energy sufficient to break the DNA of bacteria and viruses, with the result of neutralizing them and rendering them harmless.
    In one embodiment, the UV-C LED source 18 is housed in the filter housing 16.
    [0031] In an embodiment illustrated in Figure 1, the UV-C source 18 is positioned and oriented so as to irradiate the internal side 12 'of the filter element 12, i.e. the one facing the operator wearing the mask, destroying the bacteria and / or viruses that are more likely to be breathed in.
    [0032] In a variant embodiment, two UV-C sources 18 can be used, one facing a respective side 12 ', 12 "of the two opposite sides of the filter element 12.
    [0033] In a variant embodiment, the UV-C LED source could also be positioned and turned so as to irradiate the external side 12 "of the filter element, blocking the charge retained on the external surface.
    [0034] For example, the position and / or number of UV-C LED sources may depend on the type of filter material used.
    [0035] The material of the filter element could also be advantageously chosen so as to allow an at least partial passage of the UV-C radiations through this material. In this way it would be possible to fully sterilize the filter with a single UV-C source applied on a single side.
    [0036] In one embodiment, the UV-C LED source 18 is mounted on an electronic board 19 which further forms the electronic control circuit of the UV-C LED source 18.
    [0037] The UV-C LED source 18 can be easily supplied with a battery, making the system integrable in the structure of the mask. The battery can be housed in a special battery compartment or supported by the electronic board 19.
    [0038] In one embodiment, the mask 1 comprises a first shielding element 20 suitable for protecting the operator wearing the mask from UV-C radiation. Said first shielding element 20 can for example be connected to the mask body 10, as illustrated in Figure 1, so as to be interposed between the mask body and the UV-C LED source.
    [0039] In an embodiment illustrated in Figure 1, the shielding element 20 includes at least two diaphragms 20 ', 20 "which allow the passage of air and at the same time block the passage of UV-C radiation. In fact, these diaphragms are partially overlapping each other in the direction of the optical path of the UV-C radiations, but spaced apart. In this way, the reciprocal positioning of the diaphragms allows to block the UV-C radiations that follow an optical path, while allowing the passage of air that can go around the diaphragms and then pass through the space formed by the spacing between the diaphragms.
    [0040] In some embodiments, porous materials or fabrics permeable to air but opaque to UV-C radiation can also be used.
    [0041] Furthermore, the mask 1 can be equipped with a second shielding or protective element 22, suitable for reducing the emission of UV-C radiations towards the outside of the mask. For example, this second shielding or protective element 22 can be applied to the mask cap 14, as illustrated in Figure 1.
    [0042] The UV-C LED source can be operated manually or in automatic mode by means of a timer which, during use, applies sterilizing UV-C radiation pulses at predefined time intervals.
    In one practical embodiment, the UV-C LED source 18 is controlled by a PIC16F675 micro controller which operates the UV-C LED source for 1 second every 10 minutes.
    [0044] In one practical embodiment, the UV-C LED source 18 consists of four KL265-50T-SM-WD LEDs; given the reduced power supply time, no heat sinks have been foreseen.
    [0045] In one embodiment, the electronic control circuit comprises a Bluetooth connection module that can be integrated with an application suitable for managing the battery charge, for example also by intervening on the clock to increase and / or decrease the frequency ignition of the UV-C LED source.
    In one embodiment, a signaling LED can be placed on the outside of the mask in an easily visible position to indicate when the UV-C LED source is about to turn on.
    [0047] The mask 1 has an ergonomic mechanism that is easy to adapt to all faces and can be anchored to the person's face with comfortable rubber bands.
    [0048] The battery compartment, if provided, will be easy to access, so as to make it possible to change the battery quickly and easily.
    [0049] To the embodiments of the mask according to the invention, a person skilled in the art, in order to meet contingent needs, will be able to make changes, adaptations and replacements of elements with other functionally equivalent ones, without departing from the scope of the following claims. Each of the features described as belonging to a possible embodiment can be realized independently of the other described embodiments.
    权利要求:
    Claims (12)
    [1]
    1. Protective mask comprising an antibacterial and anti-virus filtering element (12), characterized by the fact of incorporating at least one UV-C LED source (18) suitable for applying to the filtering element a quantity of UV-C radiation suitable for degrading the genetic material of bacterial cells and viral particles accumulated in the filter element.
    [2]
    Mask according to claim 1, wherein the UV-C LED source (18) is positioned to irradiate an external surface of the filter element (12).
    [3]
    Mask according to claim 1 or 2, wherein the UV-C LED source (18) is positioned so as to irradiate the inner side (12 ') of the filter element, facing the operator wearing the mask.
    [4]
    Mask according to any one of the preceding claims, comprising two UV-C LED sources, one adapted to irradiate a respective side of two opposite sides (12 ', 12 ") of the filter element.
    [5]
    Mask according to any one of the preceding claims, in which the material of the filter element is chosen in such a way as to allow at least a partial passage of the UV-C radiations through said material.
    [6]
    Mask according to any one of the preceding claims, wherein the UV-C LED source is powered by a battery.
    [7]
    Mask according to any one of the preceding claims, comprising a first shielding element (20) suitable for protecting the operator wearing the mask from UV-C radiation.
    [8]
    8. Mask according to claim 7, wherein the first shielding element (20) includes at least two diaphragms (20 ', 20 ") opaque to UV-C radiation, said diaphragms being spaced so as to allow the passage of air between them , but partially overlapping each other in the direction of the optical path of UV-C radiation.
    [9]
    Mask according to any one of the preceding claims, comprising a second shielding or protective element (22) suitable for reducing the emission of UV-C radiations towards the outside of the mask.
    [10]
    Mask according to any one of the preceding claims, in which the UV-C LED source is manually operable.
    [11]
    Mask according to any one of the preceding claims, in which the UV-C LED source can be activated in automatic mode by means of a timer which, during use, applies sterilizing UV-C radiation pulses at predefined time intervals.
    [12]
    Mask according to any one of the preceding claims, comprising a mask body (10) wearable by an operator and a mask cap (14) connectable or connected to the mask body (10), so as to form with the mask body (10) a filter seat (16) which houses the filter element (12) and at least one UV-C LED source (18).
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3895566A4|2021-10-20|
    EP3895566A1|2021-10-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US8397715B2|2008-11-28|2013-03-19|Jeffrey C. Litz|Chemical and biological protection mask|
    WO2014059675A1|2012-10-19|2014-04-24|南京科智来机电有限公司|Protective mask with sterilizing lamps|
    US10335618B2|2014-07-03|2019-07-02|Ling Zhou|Breathing apparatus with ultraviolet light emitting diode|
    KR102125773B1|2018-06-04|2020-07-08|최재완|Wearable photocatalyst sterilization mask|
    KR20200020747A|2020-02-06|2020-02-26|박행배|Personal sanitary mask with light filter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT202000008227|2020-04-17|
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