EP3011998A1 - Masque respiratoire protecteur et procede de verification de l'etancheite d'un masque respiratoire protecteur - Google Patents

Masque respiratoire protecteur et procede de verification de l'etancheite d'un masque respiratoire protecteur Download PDF

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Publication number
EP3011998A1
EP3011998A1 EP15186150.7A EP15186150A EP3011998A1 EP 3011998 A1 EP3011998 A1 EP 3011998A1 EP 15186150 A EP15186150 A EP 15186150A EP 3011998 A1 EP3011998 A1 EP 3011998A1
Authority
EP
European Patent Office
Prior art keywords
mask
filter element
air
respiratory
impermeable layer
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.)
Granted
Application number
EP15186150.7A
Other languages
German (de)
English (en)
Other versions
EP3011998B1 (fr
Inventor
Manfred Schuster
Wolf Wagner
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.)
Uvex Arbeitsschutz GmbH
Original Assignee
Uvex Arbeitsschutz 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
Application filed by Uvex Arbeitsschutz GmbH filed Critical Uvex Arbeitsschutz GmbH
Priority to PL15186150T priority Critical patent/PL3011998T3/pl
Publication of EP3011998A1 publication Critical patent/EP3011998A1/fr
Application granted granted Critical
Publication of EP3011998B1 publication Critical patent/EP3011998B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B27/00—Methods or devices for testing respiratory or breathing apparatus for high altitudes

Definitions

  • the invention relates to a respiratory mask with a mask filter element, with an exhalation valve which can be inserted or inserted into the mask filter element and with at least one head attachment band attached to the mask filter element.
  • Such a respirator is for example in the DE 20 2013 011 420 U1 described.
  • the respirator which may be a particulate filtering disposable half-mask in particular, the Dichtsitzstage designed difficult and time consuming and costly.
  • the mask wearer pulls on an additional hood to then check by means fed into the hood flavors or odors, whether the respirator fits properly.
  • a quantitative fit test is even more complex.
  • a test probe for sampling is placed in the patch respirator. The number of particles thus detected within the respirator is compared with a reference value detected outside in the ambient air.
  • Such a complex fit test is often not carried out by the end user of the respirator itself.
  • a test envelope is described by means of which a mask carrier of a filter half mask can itself test whether the mask forms a dense sealing line on the face.
  • the airtight strig envelope is on the one hand provided with adhesive tape to be glued to the sealing edge of the mask can, and on the other provided with a slot which can be closed by squeezing the mask carrier. If the mask wearer applies the closing pressure by hand and inhales at the same time, the desired negative pressure develops in the mask, provided that the sealing line to the face and the test envelope are tight at the sealing edge.
  • An object of the invention is to provide a respirator of the type described, which allows a comparison with the prior art improved fit test.
  • the respirator of the invention is one in which the mask filter element is covered on its outside with an air-impermeable layer, and the air-impermeable layer is connected to the mask filter element so that at least a part of the air-impermeable layer is removable.
  • the mask filter element consists in particular of a possibly also multi-layered filter material or comprises at least one such filter material. The latter causes the desired filtering of the inhaled air.
  • the mask filter element can in particular have at least some inherent stability and / or a shell or cup shape.
  • connection between the mask filter element and the air-impermeable layer which enables at least partial removal of the air-impermeable layer, is advantageously impermeable to air, at least substantially.
  • this air-impermeable compound may be a permanently solid, preferably linear compound, wherein in the air-impermeable layer in addition a predetermined breaking line, such as a perforation or other material weakening, is present.
  • the predetermined breaking line is preferred arranged adjacent to the actual permanently fixed (that is, insoluble) connection.
  • the predetermined breaking line is preferably to be understood as part of this at least partial removal of the air-impermeable layer enabling connection.
  • the air-impermeable connection may in particular also be a solid but detachable and preferably in turn linear connection, for example a releasable cohesive connection line, such as a detachable weld seam, or a releasable clamping connection.
  • a releasable cohesive connection line such as a detachable weld seam
  • a releasable clamping connection may in particular also be combined with each other. It is thus conceivable, for example, for a permanently fixed connection with an additional predetermined breaking line to be present between the mask filter element and the air-impermeable layer in a first region, and a detachable clamping connection in a second region. Other combinations are also possible.
  • the respirator mask according to the invention may in particular be a particle-filtering half mask and / or a disposable mask.
  • the air impermeable layer disposed on the outside of the mask filter element prevents air from escaping through the mask filter element from the mask interior or into the mask interior. If inhalation during which the exhalation valve is blocked detects that air enters the interior of the mask, this is an indication of a poorly seated mask edge. Then the mask seat can be corrected until inhaled no significant amount of air more enters the mask interior and builds there instead a negative pressure. Possibly. In particular, this test may also reveal that the mask wearer should advantageously use another respirator with a different mask size and / or a different mask edge shape.
  • the outer air-impermeable layer is removed and the mask filter element exposed, so that the inhaled air is filtered during the actual mask use as usual through the mask filter element and enters the mask interior.
  • the respirator mask according to the invention can thus be carried out in the respirator mask according to the invention in a simple manner and in particular also by the mask wearer himself.
  • the functionality of the respirator during actual mask use is not affected by any elements needed for the fit test.
  • the inhalation resistance of the respirator according to the invention does not increase despite the possibility of simple automatic fit test.
  • the respirator according to the invention has a comparatively simple construction. In particular, it has only a single valve, namely the usual exhalation valve.
  • a refinement is advantageous in which the air-impermeable layer is connected to the mask filter element at least in an edge region of the mask filter element by means of a detachable weld seam, in particular a detachable weld seam, preferably a detachable ultrasonic weld seam.
  • a detachable weld seam in particular a detachable weld seam, preferably a detachable ultrasonic weld seam.
  • the air-impermeable layer has at least one tearable perforation.
  • the perforation is in particular a predetermined breaking point, along which the air-impermeable layer can be torn open. It allows for a substantial removal of the air-impermeable layer after completing the fit test.
  • the air-impermeable layer is a film, in particular of a plastic, preferably of polypropylene (PP) or polyethylene (PE).
  • PP polypropylene
  • PE polyethylene
  • the respirator comprises a particular separate Dichtsitzprüfread, which instead of the exhalation valve in a VentilausEnglishung having the mask filter element for receiving the exhalation valve, in particular temporarily and / or used as needed and there in particular mountable.
  • the fit test unit allows a more accurate fit test. Since the Dichtsitzprüfread in the anyway for the exhalation valve in the mask filter element existing valve recess is used and / or mounted, so far no Umkonstmtechnisch the respirator is necessary.
  • the Dichtsitzprüfread comprises a scholarticianssockel and an actual measuring component
  • the measuring component and the beauticianssockel are composable and surrounding the VentilausEnglishung recess edge of the mask filter element together with the air-impermeable layer in the assembled and assembled state of the Dichtsitziser between a mounting adapter of the measuring component and the Test unit socket is clamped.
  • This sealing seat testing unit has a simple structure. It can be mounted without great effort in the mask filter element and also ensures due to the clamping in particular a substantially airtight transition to the air-impermeable layer.
  • the clamping of the mask filter element and the air-impermeable layer between the mounting adapter and the strigticianssockel is in particular an air-impermeable and detachable connection, so that after loosening the mounting adapter from the fürticianssockel the air-impermeable layer in the region of the recess edge can be easily lifted or removed from the mask filter element.
  • the mounting adapter of the measuring component and the vomticianssockel are screwed together. This facilitates the assembly.
  • the force by means of which the measuring component and the test unit socket are held together and, in particular, the mask filter element and the air-impermeable layer can be clamped at the recess edge can thus be adjusted in a targeted and stepless manner.
  • the measuring component comprises a measuring tube with a movably arranged in the interior, in particular spherical display element.
  • the measuring component comprises an at least partially transparent measuring component wall, which in particular provides a view of the display ball.
  • the measuring component is provided with a measuring scale. Both measures facilitate handling, especially the readability of the Dichtsitzprüfö.
  • the measuring component comprises a measuring tube, one end of which tapers in cross-section and opens into an air opening.
  • the taper retains a display element located in the measuring tube.
  • the measuring tube designed in this way has a simple and functional design.
  • Another object of the invention is to provide a comparison with the prior art improved method for sealing fitment of a respirator.
  • a method for the tight fit testing of a respiratory mask according to the invention is specified in accordance with the features of claim 12.
  • the respirator mask is first placed by placing the mask filter element on the face of a mask wearer and by means of of the head band is fixed to the head of the mask wearer. Then, upon inhalation of the mask wearer, it is checked whether a negative pressure is formed in a mask interior formed between the face of the mask wearer and the mask filter element. If during the test a particular sufficient negative pressure in the mask interior has been found, the air-impermeable layer is at least partially removed.
  • the air-impermeable layer attached to the mask filter element of the respiratory mask during the fit test enables the formation of a negative pressure in the mask interior, by means of which it is recognized whether the respirator mask is tight. Removal of the air-impermeable layer at the end of a successful fit test allows for proper use of the respirator for proper filtering of the mask wearer's inhaled air.
  • a refinement is advantageous in which the negative pressure forming in the mask interior is determined with the exhalation valve inserted into the mask filter element and by means of an incidence of the mask filter element. Then the fit test is particularly easy. It can be carried out in particular without the aid of further aids.
  • the negative pressure forming in the mask interior is determined by means of a sealing seat testing unit inserted into the mask filter element and by means of a display readable on the sealing seat inspection unit. This allows the fit test to be carried out very accurately.
  • the sealing seat testing unit is removed again and instead the exhalation valve is inserted into the mask filter element.
  • the respirator is (again) in working order.
  • Fig. 1 is an embodiment of a respirator 1 with a mask filter element 2 and four brackets 3, 4, 5 and 6 for two head attachment bands 7 and 8 for attachment of the respirator 1 shown on the head of a mask wearer.
  • the mask filter element 2 is provided in the center with an exhalation valve 9.
  • a nose clip 11 made of a metal material is provided, which is intended to adapt the nose region 10 to the nose part of the mask wearer.
  • the brackets 3 to 6 are each designed as one-piece plastic components. They consist in the embodiment shown, for example, polypropylene (PP), polyethylene (PE), acrylonitrile-butadiene-styrene (ABS), or other suitable plastic material. They are firmly attached to the filter material of the mask filter element 2, welded in the embodiment shown.
  • the respirator 1 is constructed essentially mirror-symmetrically with respect to a median plane 12.
  • the brackets 3 to 6 are attached to the side facing away from this center plane 12, both lateral edges of the respirator 1. For this purpose, two lateral fastening projections 13 and 14 are provided on the mask filter element 2, to which the brackets 3 to 6 are welded.
  • Each two of the brackets 3 to 6 are used for receiving and fixing clamping one of the two head mounting straps 7 and 8.
  • the brackets 3 and 4 take the head mounting strap 7, the brackets 5 and 6, the head mounting strap 8.
  • the two head mounting straps 7 and 8 are elastic Bands with cut and in particular not further treated band ends 15 formed.
  • the mask filter element 2 has a cup shape and at least substantially consists of an optionally multi-layered filter material.
  • On the side facing away from the face of the mask wearer outside of the mask filter element 2 is an air-impermeable layer in the form of a plastic film 16, which consists in the Ausuningsbeispiel of polypropylene, mounted on the actual mask filter element 2.
  • the plastic film 16 is connected to an outer peripheral edge 17 of the mask filter element 2 and to a recess edge 18 of an existing in the mask filter element 2 central Ventilausnaturalung 19, in which the exhalation valve 9 is inserted with the filter material of the mask filter element 2 airtight and permanently fixed, in particular welded. From the exhalation valve 9 is in the illustration according to Fig.
  • the plastic film 16 is provided with a perforation 23 running adjacent to the weld seam on the outer peripheral edge 17, with a perforation 24 running adjacent to the weld seam on the recess edge 18 and with a perforation 25 surrounding the nose clip 11.
  • the Perforation 23, 24, 25 are particularly so fine that they allow no significant exchange of air or passage.
  • the perforations 23, 24, 25 are predetermined breaking points or predetermined breaking lines along which the plastic film 16 can be torn or torn off.
  • the air-impermeable plastic film 16 is used by the mask wearer himself and without further aids in a simple manner feasible fit test.
  • the mask wearer sets the respirator mask 1 (with the exhalation valve 9 fully assembled).
  • the mask wearer checks whether a negative pressure builds up during inhalation inside the mask interior, so that the cup wall of the mask filter element 2 equipped with a certain mechanical flexibility is incident. If this is not the case, the mask wearer can improve the fit of the respiratory mask 1, for example by readjusting the head attachment straps 7, 8, or put on another substantially identical, but a different mask size and / or mask fit respirator to then repeat the fit test ,
  • the air-impermeable plastic film 16 is no longer needed. It is largely removed by tearing along the perforations 23, 24, 25 in order then to use the tightly fitting according to the previously performed test respirator 1 without interference according to their actual intended purpose, namely for filtering the inhaled air by means of the mask filter element 2.
  • the described fit test can be performed either separately for each individual respirator 1 and before its intended use or only occasionally, e.g. once per package, containing a variety of the same respirators 1.
  • FIG. 2 another embodiment of a respirator 26 is shown with a likewise covered on its outer side by an air-impermeable layer in the form of a plastic film 27 made of polyethylene mask filter element 28.
  • the picture according to Fig. 2 corresponds to the cross section II - II according to Fig. 1 , taking into account that the respirator 26 differs from the respirator 1 in some details.
  • the respirator 26 has no nose clip 11.
  • the plastic film 27 is disposed on the outside of the third layer 31.
  • the respirator 26 includes fixed, but detachable connections.
  • a detachable weld seam 32 exists as an air-impermeable connection between the mask filter element 28 and the plastic film 27.
  • Fig. 4 still described in more detail airtight clamp connection available. Since these types of connection are thus each made detachable, the plastic film 27 has no perforations that allow the extensive removal of the plastic film 16 in the respirator 1. The plastic film 27 can be completely removed after successful fit testing of the respirator 26.
  • the respirator 26 At the mask interior facing or at the voltage applied to the face of the mask wearer side of the outer peripheral edge 17, the respirator 26 has a sealing lip 33. Such a sealing lip is low, but still not mandatory. It improves the tight fit of the respirator 26 on the face of the mask wearer.
  • the tight fit test of the respirator 26 can in principle be the same as described in connection with the respirator 1. However, it is also possible to use the further method for sealing fit testing described below.
  • the Dichtsitzprüfread 34 comprises a measuring tube 35 which is screwed by means of a mounting adapter 36 on a scholarechssockel 37.
  • the mounting adapter 36 and the fürikissockel 37 are equipped with corresponding mutually corresponding screw threads.
  • the measuring tube 35 and the mounting adapter 36 are integrally connected to each other and designed as a common component, which represents the actual measuring component. Its measuring component wall is made partially transparent in the region of the measuring tube 35.
  • the measuring tube 35 has in this area a viewing window 38, which releases the view of a located in the interior of the measuring tube 35 and a display element forming ball 39.
  • the ball 39 is movable within the measuring tube 35.
  • the outside of the measuring tube 35 is provided with a measuring scale 40.
  • the end region of the measuring tube 35 facing away from the mounting adapter 36 comprises a cross-sectional tapering 41 and retaining the ball 39 opens into an air opening 42.
  • the components of the sealing seat unit 34 are each made in particular of a plastic.
  • the seal fit testing unit 34 is mounted on the mask filter element 28. Possibly.
  • the exhalation valve 9 is dismantled beforehand.
  • the test unit socket 37 is set from the inside into the valve recess 19 and passed through the valve recess 19 with its thread. This partially assembled state is in Fig. 4 shown.
  • the actual measuring component is screwed onto the test unit socket 37 from outside by means of its mounting adapter 36.
  • the mask filter element 28 and the plastic film 27 are clamped together in the region of the recess edge 18.
  • the clamping force can be adjusted by the degree of screwing the mounting adapter 36 to the scholarticianssockel 37.
  • the already mentioned releasable air-impermeable connection between the mask filter element 28 and the plastic film 27 results.
  • the fit test is carried out similarly as described in connection with the respiratory mask 1.
  • a measure of a proper fit of the respirator 26 is not the collapse of the mask filter element 28.
  • a quantitative measure of the fit of the respirator 26 can be determined. If a negative pressure forms in the interior of the mask during inhalation, the ball 39 in the measuring tube 35 is raised. If the ball 39 reaches a certain predefinable height which can be read on the measuring scale 40, the respiratory mask 26 sits tightly.
  • the sealing seat unit 34 is disassembled again, the air-impermeable plastic film 27 is removed by simply pulling off, and the exhalation valve 9 is mounted in the central valve recess 19 of the mask filter element 28.
  • the respirator 28 may then be used to filter the inhaled air.
  • the respirators 1 and 26 in a simple, yet very reliable manner to be performed by the mask wearer self-examination fit. This increases the safety for the mask wearer.
  • the respirators 1 and 26 have a simple and therefore cost-effective design. Due to the removability of the impermeable plastic films 16 and 27 required for the tightness tests, the respirator masks 1 and 26, that is to say the filtering of the inhaled air, result in no impairment during normal operation. In particular, there is no undesirable increase in the inhalation resistance.
EP15186150.7A 2014-10-21 2015-09-22 Masque respiratoire protecteur et procede de verification de l'etancheite d'un masque respiratoire protecteur Active EP3011998B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15186150T PL3011998T3 (pl) 2014-10-21 2015-09-22 Ochronna maska oddechowa oraz sposób kontroli szczelności osadzenia ochronnej maski oddechowej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014221311.8A DE102014221311B3 (de) 2014-10-21 2014-10-21 Atemschutzmaske und Verfahren zur Dichtsitzprüfung einer Atemschutzmaske

Publications (2)

Publication Number Publication Date
EP3011998A1 true EP3011998A1 (fr) 2016-04-27
EP3011998B1 EP3011998B1 (fr) 2017-03-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15186150.7A Active EP3011998B1 (fr) 2014-10-21 2015-09-22 Masque respiratoire protecteur et procede de verification de l'etancheite d'un masque respiratoire protecteur

Country Status (4)

Country Link
EP (1) EP3011998B1 (fr)
DE (1) DE102014221311B3 (fr)
ES (1) ES2622862T3 (fr)
PL (1) PL3011998T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020002516B3 (de) * 2020-04-25 2021-05-12 Serv-O-Tec Druck- Und Papierverarbeitungsmaschinen Gmbh Einwegschutzmaske mit Vorbenutzungsanzeige

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230158344A1 (en) 2020-04-24 2023-05-25 Loewenstein Medical Technology S.A. Breathing mask with particle filter
DE102023112402A1 (de) 2022-05-17 2023-11-23 Löwenstein Medical Technology S.A. Atemmaske mit Partikelfilter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651217B1 (de) * 1976-11-10 1978-04-06 Draegerwerk Ag, 2400 Luebeck Prüfeinrichtung für den dichten Sitz von Atemschutzmasken
DE8814803U1 (fr) 1988-11-28 1990-03-29 Moldex-Metric Ag & Co. Kg, 7401 Walddorf, De
US5529056A (en) 1994-08-12 1996-06-25 Tecnol Medical Products, Inc. Apparatus and method for testing respirator fit and seal
US6098624A (en) * 1996-12-16 2000-08-08 Utamaru; Masanobu Simple mask for protection of respiratory system
US20100132714A1 (en) * 2005-04-29 2010-06-03 North Safety Products Inc. Face Piece Seal Check Device
US20130010288A1 (en) * 2010-04-02 2013-01-10 Dwyer Gary E Filter Systems Including Optical Analyte Sensors and Optical Readers
DE202013011420U1 (de) 2013-12-20 2014-03-05 Uvex Arbeitsschutz Gmbh Halterung für ein Befestigungsband sowie Atemschutzmaske mit einer solchen Halterung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE613672C (de) * 1930-11-02 1935-05-23 Draegerwerk Heinr U Bernh Drae Vorrichtung zum Pruefen der Dichtigkeit von Gasschutzmasken

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651217B1 (de) * 1976-11-10 1978-04-06 Draegerwerk Ag, 2400 Luebeck Prüfeinrichtung für den dichten Sitz von Atemschutzmasken
DE8814803U1 (fr) 1988-11-28 1990-03-29 Moldex-Metric Ag & Co. Kg, 7401 Walddorf, De
US5529056A (en) 1994-08-12 1996-06-25 Tecnol Medical Products, Inc. Apparatus and method for testing respirator fit and seal
US6098624A (en) * 1996-12-16 2000-08-08 Utamaru; Masanobu Simple mask for protection of respiratory system
US20100132714A1 (en) * 2005-04-29 2010-06-03 North Safety Products Inc. Face Piece Seal Check Device
US20130010288A1 (en) * 2010-04-02 2013-01-10 Dwyer Gary E Filter Systems Including Optical Analyte Sensors and Optical Readers
DE202013011420U1 (de) 2013-12-20 2014-03-05 Uvex Arbeitsschutz Gmbh Halterung für ein Befestigungsband sowie Atemschutzmaske mit einer solchen Halterung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020002516B3 (de) * 2020-04-25 2021-05-12 Serv-O-Tec Druck- Und Papierverarbeitungsmaschinen Gmbh Einwegschutzmaske mit Vorbenutzungsanzeige
WO2021213576A1 (fr) 2020-04-25 2021-10-28 Serv-O-Tec Druck- Und Papierverarbeitungsmaschinen Gmbh Masque de protection jetable avec indicateur d'utilisation précédente

Also Published As

Publication number Publication date
PL3011998T3 (pl) 2017-08-31
EP3011998B1 (fr) 2017-03-01
DE102014221311B3 (de) 2016-01-28
ES2622862T3 (es) 2017-07-07

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