EP3888758A1 - Système portable de désinfection de l'air respiratoire - Google Patents

Système portable de désinfection de l'air respiratoire Download PDF

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Publication number
EP3888758A1
EP3888758A1 EP21165764.8A EP21165764A EP3888758A1 EP 3888758 A1 EP3888758 A1 EP 3888758A1 EP 21165764 A EP21165764 A EP 21165764A EP 3888758 A1 EP3888758 A1 EP 3888758A1
Authority
EP
European Patent Office
Prior art keywords
breathing air
disinfection system
portable
uvc
air disinfection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21165764.8A
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German (de)
English (en)
Inventor
Matthias Krinke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pi4_robotics GmbH
Original Assignee
Pi4_robotics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102020133846.5A external-priority patent/DE102020133846B4/de
Application filed by Pi4_robotics GmbH filed Critical Pi4_robotics GmbH
Publication of EP3888758A1 publication Critical patent/EP3888758A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/10—Respiratory apparatus with filter elements
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus

Definitions

  • the invention relates to a portable breathing air disinfection system, comprising at least one mouth and nose mask or a face or head mask with means for fastening to the cranium of the respective user, a breathing valve arrangement for supplying and removing a breathing air flow and with a breathing air flow-through body according to Claim 1.
  • Face and filter masks are commonly worn over a person's airways with two general goals: (1) to prevent contaminants from entering the wearer's respiratory system and (2) to protect other people or objects from exposure to pathogens and other contaminants that the wearer ejects.
  • the face mask In the first case, the face mask is worn in an environment in which the air contains substances which are harmful to the wearer.
  • the face mask In the second case, the face mask is worn in an environment in which the risk of infection or contamination of another person or another object is high - for example in an operating room or a clean room.
  • Face masks that have been confirmed to conform to certain standards are commonly referred to as “respirators”; whereas masks that are primarily designed in the second sense - namely, are used to protect other people and objects - are generally referred to as “face masks” or simply “masks”.
  • a surgical mask is an example of a face mask that is often unsuitable as a breathing apparatus.
  • Surgical masks are typically loose-fitting face masks that are primarily designed to protect others from contamination exhaled by a doctor or other medical personnel. Substances expelled from a wearer's mouth are often in the form of an aerosol, which is a suspension of fine solids and / or liquid particles in gas. Surgical masks are able to remove these particles even though they sit loosely on the wearer's face.
  • an example of a loosely fitting surgical mask is disclosed.
  • Loosely fitting masks usually do not have an exhalation valve to remove exhaled air from inside the mask.
  • the loose fit allows exhaled air to easily escape along the sides of the mask - known as flowing past - so that the wearer does not feel uncomfortable, especially when breathing heavily.
  • these masks are loose fitting, they cannot fully protect the wearer from inhaling contaminants or from being splashed with liquid.
  • the loosely fitting feature is a disadvantage of such surgical masks.
  • Some close-fitting face masks have a porous mask body that is shaped and adapted to filter inhaled air.
  • the filter material is usually arranged integrated in the mask body and consists of, for. B. Microfibers. These masks are commonly referred to as respirators and often have an exhalation valve that opens when the internal air pressure increases when the wearer exhales.
  • Known close-fitting respirators that have an exhalation valve can prevent the wearer from immediately inhaling harmful particles, but there are limitations on the masks that protect other people or objects from the influence of contaminants emitted by the wearer.
  • the exhalation valve When a wearer exhales, the exhalation valve is open to the ambient air and this temporary opening creates a channel from the wearer's mouth and nose to the outside of the mask.
  • the temporary opening allows aerosol particles generated by the wearer to pass from the interior of the mask to the environment. Aerosol particles such as saliva, mucus, blood and sweat are commonly generated when the wearer sneezes, coughs, laughs or speaks.
  • Saliva particles are full of bacteria. Aerosol particles generated by speaking may be able to lead to infection of a patient or contamination of a precision instrument.
  • Oral generated particles come in a wide variety of sizes, with the smallest being about 3 to 4 micrometers in diameter on average. However, the spurting particles that come out of the mouth and reach a third party nearby are generally about 15 micrometers or larger.
  • Respiratory protective devices have become known which are capable of protecting both the wearer and people or objects in the vicinity from contamination. See for example the U.S. Patent 5,307,706 , the U.S. Patent 4,807,619 and the U.S. Patent 4,536,440 .
  • the WO 00/04957 relates to a face and filter mask that covers at least a wearer's nose and mouth and includes an exhalation valve.
  • the exhalation valve opens in response to a higher pressure when the wearer exhales to allow the exhaled air to be quickly vented from the interior of the mask.
  • An exhalation filter element is located in one of several locations in the exhalation stream to remove contaminants from the exhaled air.
  • a classic surgical disposable mask made of a textile filter material with straps for attaching to the cranium of a test person is in the EP 3 262 961 B1 disclosed.
  • a bag made of an airtight material is present, which is provided with at least one opening with a closure mechanism for the introduction of limbs of the organism to be treated.
  • the bag has an access with which ozone from an ozone generator can be introduced into the bag with the aid of a flexible hose in order to carry out the corresponding treatment.
  • the actual filtering takes place on the user's back, through side hose connections that lead to the filter, which can be fixed on the user's back.
  • the prior art also includes UV emitting devices for air disinfection, for example according to DE 20 2013 000 808 U1 .
  • a UV radiation area is combined with a radiation area that emits radiation in the range of visible light.
  • the known device is suitable for use in agricultural facilities or for use in medical objects, in particular hospitals or operating theaters.
  • a further developed portable breathing air disinfection system comprising at least one mouth and nose mask or at least one face or head mask with means for fastening to the cranium of the respective user, which is capable of both the To clean the inhaled and exhaled air of the user, in particular to disinfect.
  • the system should be reusable and serve to replace previous disposable surgical or face masks made of fabric or non-woven material.
  • the disinfection of the breathing air should be free of chemical agents, namely primarily physically, i.e. by UVC radiation, see above that no chemical consumables are necessary and no waste materials or harmful by-products are created.
  • a portable breathing air disinfection system which has at least one mouth and nose mask or at least one face or head mask with means for fastening to the cranium of the respective user.
  • the breathing air system can be designed in such a way that several users can be connected to a common system.
  • the breathing air disinfection system can be dimensioned and configured in such a way that it is specially designed for a user or a specific user group.
  • users or user groups can be understood to mean people of different ages or different genders, but also people who move or stay in special danger areas.
  • the inhaled and / or exhaled air passing through the breathing air flow body is directly or indirectly exposed to intensive UVC radiation.
  • the arrangement of UVC radiation emitting means is provided in or on the breathing air throughflow body.
  • the breathing air throughflow body can have a flow labyrinth in order to ensure that the microbes, viruses, bacteria, fungi or the like in the breathing air are irradiated as intensively as possible.
  • the flow labyrinth can be designed as a tube system, the tubes being made of a material that is permeable to UVC radiation.
  • the UVC radiation-generating means are then formed outside the tubes.
  • the irradiation intensity for the treatment of inhaled and exhaled air can be selected and set.
  • a power supply is provided for the UVC emitters in order to enable the breathing air disinfection system to operate independently at least at times.
  • the power supply is equipped with secondary elements which can be electrically charged using conventional technology.
  • the charging time can be used to self-disinfect the system by activating the UVC radiation-emitting agents it contains.
  • a microfilter device can be formed in or on the breathing air throughflow body, which can be introduced into the breathing air flow in addition or as an alternative to UVC irradiation.
  • the breathing air throughflow body can be designed as a hose arrangement, it being possible for the UVC radiation-emitting means to be arranged within this hose arrangement.
  • the breathing air flows around the radiation-emitting means, the breathing air coming into contact with the radiation-emitting means or the emitted radiation as extensively as possible.
  • the breathing air throughflow body is formed on the basis of a nonwoven material, in particular a pile fiber nonwoven, or a knitted spacer fabric.
  • the electrically conductive elements can already be introduced as conductive tracks when laying the fleece or when creating the knitted fabric. If silver materials are used in this regard, there is an additional bactericidal effect.
  • the nonwoven or knitted spacer material can, in addition to its function as a carrier for the UVC radiation-generating means, fulfill a filter function for retaining microparticles.
  • a device is designed for switching between an operating mode “breathing air disinfection” and an operating mode “self-disinfection”.
  • the UVC radiation-generating agents contained in the system are activated over a predetermined period of time in order to inactivate or destroy any microbes, viruses, bacteria, yeast, fungi or the like that may have remained in the system.
  • separate channels for inhaled and exhaled air are formed in the breathing air throughflow body.
  • Means for retaining particles, in particular particles suspended in air in solid or liquid form, are arranged in particular in the exhalation air duct.
  • the system according to the invention thus enables effective disinfection through the use of UVC radiation-emitting agents.
  • This radiation is absorbed by the DNA of viruses or bacteria and destroys their structure.
  • living cells are inactivated and microorganisms are rendered harmless.
  • UV disinfection as an environmentally friendly method, there is no need to add chemicals. The risk of microorganisms developing resistance to UV rays is also reduced.
  • the inactivation or destruction of cells happens extremely quickly due to the high-energy radiation.
  • the disinfection process takes place without any adverse effects on taste or smell.
  • the formation of harmful by-products is excluded.
  • the system In contrast to textile mouth masks or surgical masks, the system also ensures disinfection of the exhaled air as well as holding back any particles or particles that may be in the exhaled air.
  • the irradiation intensity of the inhaled or exhaled air is adjustable and, if necessary, can also be specified differently.
  • UV LEDs light-emitting diodes
  • the breathing air throughflow body is designed in such a way that safe and sufficient irradiation and the desired germicidal effect can be achieved.
  • the breathing air disinfection system with breathing air through-flow body and the UVC radiation-emitting means can preferably be attached to the subject's body by means of a carrying system away from the head of the test person.
  • a carrying system away from the head of the test person.
  • Variants as a backpack, handbag or belt bag are conceivable here.
  • the system can be mounted on castors or designed for robot transport.
  • the individual components of the system can be disinfected in the classic way and are also designed in terms of their mechanical design and the choice of materials.
  • the mask can be placed in a room that is exposed to intense UVC radiation.
  • the housing arrangement for accommodating the radiation-generating means (s) and for the power supply can have an opening mechanism which is used to accommodate the hose and mask. After sufficient self-disinfection, for example via a time control, the mask and hose can then be removed and used for the intended purpose.
  • the housing arrangement For storage purposes, there is also the possibility of designing the housing arrangement in such a way that there is sufficient installation space to accommodate the mask and hose connection. This means that the mask and the air inlet and outlet hose are only removed from the housing arrangement when in use.
  • valve arrangement and connecting hoses are made from a UVC-permeable material in order to make the self-disinfection process more effective and faster.
  • the mouth and nose mask can also consist of a translucent, UVC-permeable material in order to improve disinfection with the system-internal UVC radiation-emitting unit.
  • the system has power supply and battery management.
  • Optical and / or acoustic signals indicate to the user how long the system can be used for. This is to ensure that a system failure due to insufficient power supply does not lead to risks for the user.
  • the possibility of controlling the radiation output of the radiation-generating means can be used to adapt to the necessary disinfection services that can be tailored to the application.
  • sensors can be formed at the inlet and outlet of the breathing air throughflow body, which determine the load on the respective fluid in order to initiate the desired intensity regulation.
  • the radiation power of the radiation-generating means is determined continuously or cyclically. On the basis of known aging parameters, the course of the performance curve is then estimated in the sense of a prediction. It is possible not only to estimate the remaining useful life, but to make readjustments in order to ensure that the generated radiation output is as constant as possible with a correspondingly optimal disinfection result.
  • CO2 and / or O2 sensors are integrated in order to determine the respective saturation content in the inlet or outlet. Determine exhaled air.
  • the ambient air quality can also be determined along with fine dust analysis using the system presented.
  • the disinfection system explained in the following exemplary embodiment consists of a mask 1 which can be fixed to the cranium of a test person 3 with the aid of a loop-like or bow-like fastening device 2.
  • a housing arrangement 4 accommodates a breathing air throughflow body in the form of a pipe system 5.
  • the pipe system 5 has an inlet 6 and an outlet 7.
  • the inputs and outputs can be provided, for example, on the upper side or on the opposite side surfaces of the housing arrangement 4.
  • the pipe system 5 can be implemented as a flow labyrinth and consist of a material that is permeable to UVC radiation.
  • a means 8 generating UVC radiation is located inside the housing arrangement 4 and is supplied with electrical energy by a primary or secondary element 10.
  • connection between the breathing air throughflow body 5 and the mask 1 is realized via a hose arrangement 11.
  • the secondary element 10 can be fixed on the test subject 3 via a belt 12.
  • the attachment of the housing arrangement 4 can take place, for example, with the aid of a chest-shoulder strap 13.
  • the housing body 4 is formed like a sandwich, that is, divided into at least two chambers.
  • the separation between the upper chamber 400 and the lower chamber 401 is effected by an intermediate or separating plate 402 that can be fastened in the housing arrangement 4.
  • the open top of the housing assembly 4 (see Figure 3b ) can be closed with the aid of a snap-in or clampable cover 403.
  • the power supply 10 now finds its place in the free space above the plate 402. At the same time, a plug-in charger 14 can be accommodated.
  • the tube 8 which generates UVC radiation is located in the lower region of the housing arrangement 4, protected by the cover 402. This effectively reduces the risk of undesirable and critical radiation exposure to the eyes.
  • the Figure 4 shows two different variants of the fastening of the cover 403 to the housing arrangement 4.
  • the cover can be pushed on via a corresponding groove guide and finally locked in place when the desired end position is reached.
  • the aim is to create compatibility in such a way that the arrangement of conventional handbags, rucksacks, school satchels and similar structures can be accommodated.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP21165764.8A 2020-04-01 2021-03-30 Système portable de désinfection de l'air respiratoire Withdrawn EP3888758A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020109077 2020-04-01
DE102020124726 2020-09-23
DE102020133846.5A DE102020133846B4 (de) 2020-04-01 2020-12-16 Tragbares Atemluft-Desinfektionssystem

Publications (1)

Publication Number Publication Date
EP3888758A1 true EP3888758A1 (fr) 2021-10-06

Family

ID=75302230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21165764.8A Withdrawn EP3888758A1 (fr) 2020-04-01 2021-03-30 Système portable de désinfection de l'air respiratoire

Country Status (1)

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EP (1) EP3888758A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022179702A1 (fr) * 2021-02-26 2022-09-01 Kolbenschmidt Pierburg Innovations Gmbh Masque de protection avec guide d'air dirigé vers l'arrière

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613678A (en) 1970-02-24 1971-10-19 Minnesota Mining & Mfg Filtration mask
US4536440A (en) 1984-03-27 1985-08-20 Minnesota Mining And Manufacturing Company Molded fibrous filtration products
US4807619A (en) 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
US5307706A (en) 1991-04-04 1994-05-03 Shimano Inc. Speed control apparatus for bicycle having a sound producing device
DE29605180U1 (de) 1996-03-20 1996-06-20 Winkler Klaus G Mundschutzmaske zur wahlweisen Filterung sowohl der Einatemluft als auch der Ausatemluft
WO2000004957A1 (fr) 1998-07-24 2000-02-03 Minnesota Mining And Manufacturing Company Masque facial equipe d'une soupape d'expiration a filtre
US20090004047A1 (en) * 2005-11-08 2009-01-01 Hunter Eric C Air Supply Apparatus
US20090205664A1 (en) * 2005-11-03 2009-08-20 Uv Light Sciences Group, Inc. Ultra-violet germicidal personal protection apparatus
DE202013000808U1 (de) 2013-01-28 2013-03-07 PURION GmbH Ultraviolett-Abstrahlvorrichtung
US20160001108A1 (en) * 2014-07-03 2016-01-07 Ling Zhou Breathing apparatus with ultraviolet light emitting diode
DE202019106684U1 (de) 2018-12-10 2019-12-09 BIOOZON s.r.o. Tragbares Therapie- und Desinfektionsgerät
EP3262961B1 (fr) 2016-06-21 2020-01-29 Euronda SpA Masque chirurgical jetable

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613678A (en) 1970-02-24 1971-10-19 Minnesota Mining & Mfg Filtration mask
US4536440A (en) 1984-03-27 1985-08-20 Minnesota Mining And Manufacturing Company Molded fibrous filtration products
US4807619A (en) 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
US5307706A (en) 1991-04-04 1994-05-03 Shimano Inc. Speed control apparatus for bicycle having a sound producing device
DE29605180U1 (de) 1996-03-20 1996-06-20 Winkler Klaus G Mundschutzmaske zur wahlweisen Filterung sowohl der Einatemluft als auch der Ausatemluft
WO2000004957A1 (fr) 1998-07-24 2000-02-03 Minnesota Mining And Manufacturing Company Masque facial equipe d'une soupape d'expiration a filtre
US20090205664A1 (en) * 2005-11-03 2009-08-20 Uv Light Sciences Group, Inc. Ultra-violet germicidal personal protection apparatus
US20090004047A1 (en) * 2005-11-08 2009-01-01 Hunter Eric C Air Supply Apparatus
DE202013000808U1 (de) 2013-01-28 2013-03-07 PURION GmbH Ultraviolett-Abstrahlvorrichtung
US20160001108A1 (en) * 2014-07-03 2016-01-07 Ling Zhou Breathing apparatus with ultraviolet light emitting diode
EP3262961B1 (fr) 2016-06-21 2020-01-29 Euronda SpA Masque chirurgical jetable
DE202019106684U1 (de) 2018-12-10 2019-12-09 BIOOZON s.r.o. Tragbares Therapie- und Desinfektionsgerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022179702A1 (fr) * 2021-02-26 2022-09-01 Kolbenschmidt Pierburg Innovations Gmbh Masque de protection avec guide d'air dirigé vers l'arrière

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