WO2015047745A1 - Respiratory mask having a nose support extension - Google Patents

Respiratory mask having a nose support extension Download PDF

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Publication number
WO2015047745A1
WO2015047745A1 PCT/US2014/055334 US2014055334W WO2015047745A1 WO 2015047745 A1 WO2015047745 A1 WO 2015047745A1 US 2014055334 W US2014055334 W US 2014055334W WO 2015047745 A1 WO2015047745 A1 WO 2015047745A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
support extension
mask
respiratory mask
user
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.)
Ceased
Application number
PCT/US2014/055334
Other languages
English (en)
French (fr)
Inventor
William A. Mittelstadt
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to CA2924645A priority Critical patent/CA2924645A1/en
Priority to AU2014328022A priority patent/AU2014328022B2/en
Priority to BR112016006503A priority patent/BR112016006503A2/pt
Priority to RU2016111707A priority patent/RU2640984C2/ru
Priority to JP2016516564A priority patent/JP6541649B2/ja
Priority to CN201480050836.0A priority patent/CN105530826B/zh
Priority to EP14846919.0A priority patent/EP3048914A4/en
Priority to KR1020167010519A priority patent/KR102386181B1/ko
Publication of WO2015047745A1 publication Critical patent/WO2015047745A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0616—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
    • 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
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor

Definitions

  • This disclosure relates to a respiratory protection device, in particular a mask body of a respiratory protection device having a nose region including a seal and a support extension.
  • Respiratory protection devices commonly include a mask body and one or more filter cartridges that are attached to the mask body.
  • the mask body is worn on a person's face, over the nose and mouth, and may include portions that cover the head, neck, or other body parts in some cases. Clean air is made available to a wearer after passing through filter media disposed in the filter cartridge.
  • a respiratory mask including a mask body defining a breathable zone of air for a user comprising a nose region, a chin region, and first and second cheek regions, a seal configured to contact the face of a user, the seal defining an opening configured to receive a nose and mouth of a user, and a support extension in the nose region.
  • the support extension extends in a direction away from the seal, and is configured to contact a user's nose at a position beyond the seal.
  • the inwardly rolled edge defines an outer peripheral edge of the mask body in the chin region and at least a portion of the first and second cheek regions, and the support extension defines an outer peripheral edge of the mask body in the nose region.
  • the present disclosure further provides a respiratory mask including a mask body defining a breathable zone of air for a user comprising a nose region, a chin region, and first and second cheek regions, a seal comprising an inwardly rolled edge configured to contact the face of a user and defining an opening configured to receive a nose and mouth of a user, the inwardly rolled edge defining an outer peripheral edge of the mask body in the chin region and at least a portion of the first and second cheek regions, and a support extension in the nose region.
  • the support extension extends in a direction away from the seal and towards the face of a user and contacts a user's nose at a position between the seal and an outer peripheral edge of the mask body.
  • the support extension does not comprise a rolled edge.
  • Figure 1 is a side view of an exemplary respiratory protection system according to the present disclosure positioned on a user.
  • Figure 2 is a rear view of an exemplary embodiment of a respiratory protection device according to the present disclosure.
  • Figure 3 is a cross-sectional view of an exemplary respiratory protection device according to the present disclosure.
  • Figure 4a is a rear view of an exemplary embodiment of a respiratory protection device according to the present disclosure.
  • Figure 4b is a cross-sectional view of an exemplary respiratory protection device according to the present disclosure.
  • Figure 5 is a rear view of an exemplary embodiment of a respiratory protection device according to the present disclosure.
  • the present disclosure provides a respiratory protection device having a mask body that includes a nose region having a seal and a support extension.
  • the seal is configured to contact the face of a user to prevent entry of unwanted contaminants or debris
  • the support extension extends in a direction away from the seal and contacts a user's nose to provide additional support for the respiratory protection device.
  • the combination of a seal and a support extension in a nose region results in a respiratory mask that provides desired sealing and comfort while reducing unnecessary thickness and bulk that could interfere with eyewear or other personal protective equipment.
  • FIGS 1, 2 and 3 illustrate an exemplary embodiment of a respiratory protection device 100 that may cover the nose and mouth and be used to provide breathable air to a wearer.
  • the respiratory protection device 100 includes a mask body 110 that defines a breathable zone of air for a user and may include a nose region 130, first and second cheek regions, 140, 150, on opposing sides of mask body 110, respectively, and chin region 160.
  • Mask body 110 may include one or more inlet ports, such as inlet ports 103 and 104.
  • One or more breathing air source components such as filter cartridges (not shown), may be positioned on opposing sides of mask body 110 at first and second inlet ports 103 and 104. The filter cartridges filter air received from the external environment before the air passes into an interior space within the mask body for delivery to a wearer.
  • mask body 110 may include a rigid or semi-rigid portion 110a and a compliant face contacting portion 110b.
  • the face contacting portion of the mask body is compliantly fashioned for allowing the mask body to be comfortably supported over a person's nose and mouth and/or for providing an adequate seal with the face of a wearer.
  • the rigid or semi-rigid portion 110a provides structural integrity to mask body 110 so that it can properly support breathing air source components, such as filter cartridges, for example.
  • mask body portions 110a and 110b may be provided integrally or as separately formed portions that are subsequently joined together in permanent or removable fashion.
  • An exhalation port allows air to be purged from an interior space within the mask body during exhalation by a wearer.
  • the exhalation port is located centrally on mask body 110.
  • An exhalation valve is fitted at the exhalation port to allow air to exit due to positive pressure created within mask body 110 upon exhalation, but prevent ingress of external air.
  • a harness or other support 170 may be provided to support the mask in position about the nose and mouth of a wearer.
  • harness 170 includes one or more straps 172 that pass behind a wearer's head.
  • straps may be attached to a crown member 171 supported on a wearer's head, a suspension for a hard hat, or another head covering.
  • Respiratory protection device 100 includes a seal 121 configured to contact the face of a user to prevent unwanted contaminants or debris from entering a zone of breathable air within mask body 110.
  • seal 121 defines an opening 122 configured to receive or fit over the nose and mouth of a user when mask body 1 10 is positioned for use. Exemplary seal 121 thus surrounds an entirety of mask body 110 to provide sealing contact with the face of a user.
  • seal 121 includes an inwardly rolled edge.
  • a rolled edge provides a snug and comfortable fit over a user's nose and against a user's cheeks and chin while providing a consistent seal against the contours of a user's face.
  • the rolled edge is integrally formed with compliant face- contacting portion 110b of mask body 110. The rolled edge readily flexes and conforms to a user's face when positioned for use.
  • the rolled edge of seal 121 defines an outer peripheral edge 125 of the mask body in at least a portion of first and second cheek regions 140, 150 and chin region 160.
  • nose region 130 of mask body 110 includes a support extension 131 which extends in a direction away from the seal 121 and contacts a user's nose.
  • support extension 131 extends beyond the seal and towards the user's face.
  • Support extension 131 defines an outer peripheral edge 135 of nose region 130 and may be configured to contact a user's nose at a position beyond seal 121, for example between seal 121 and outer peripheral edge 135 and/or at outer peripheral edge 135.
  • support extension 131 includes an outer surface 132 and an inner surface 133 separated by a thickness (t). When positioned for use, inner surface 133 may contact a user's nose and adjacent facial area to provide additional support and stability for mask body 1 10.
  • seal 121 provides sufficient sealing on the face of a user and inner surface 133 need not provide complete and uniform contact on a user's nose.
  • support extension 131 does not include a substantial rolled edge.
  • support extension 131 may be formed of a single layer of material.
  • a single layer of material reduces interference with eyewear or other personal protective equipment that a user may desire to wear in combination with respiratory protection device 100.
  • support extension 131 may be formed of one or more layers of material joined together, by bonding for example, or other suitable methods as known in the art, such that support extension 131 is not unduly thick so as to cause interference with eyewear.
  • Compliant face-contacting member 110b and seal 121 may be made of any suitable flexible material that may be comfortably positioned on the face of a user.
  • compliant face-contacting member 110b is made of silicone, rubber, or other suitable materials.
  • the thicknesses of seal 121 and support extension 131 may be configured to provide adequate sealing and support, respectively, while minimizing unnecessary bulk of mask body 110.
  • a thickness of seal 121 may be substantially uniform and similar to the thickness of the remainder of compliant face-contacting portion 110b.
  • a thickness of the rolled edge of seal 121 may differ from a thickness of compliant face-contacting portion 110b, and may vary at different locations of seal 121.
  • seal 121 includes a rolled edge having a thickness at any particular location between approximately 0.4 mm and 2.0 mm, 0.55 mm and 1.2 mm, or of about 0.65 mm. Such thicknesses may provide sufficient durability while providing a relatively lightweight mask body 110.
  • the thickness of seal 121 in nose region 130 is generally less than a thickness in first and second cheek regions 140, 150 and/or chin region 160.
  • the presence of seal 121 and support extension 131 in nose region 130 allows seal 121 to be relatively thinner in the nose region because seal 121 does not need to also be a primary source of support for mask body 110.
  • the presence of support extension 131 also allows seal 121 to contact the nose of a user lower and closer to the tip of the nose. A thinner seal positioned closer to the tip of the nose may provide greater comfort for a user, especially during extended periods of use.
  • seal 121 has a thickness (a) in nose region 130 between approximately 0.4 mm and 2.0 mm, or 0.55 mm and 1.2 mm, or of approximately 0.65 mm, and a thickness (b) in a chin region between approximately 0.4 mm and 2.0 mm, or 0.55 mm and 1.2 mm, or of approximately 0.65 mm, and a thickness (b) in a chin region between approximately 0.4 mm and 2.0 mm, or 0.55 mm and 1.2 mm, or of approximately 0.65 mm, and a thickness (b) in a chin region between
  • thickness (a) of seal 121 in nose region 130 is between approximately 30 % and 90 %, 45 % and 75 %, or approximately 45 % of thickness (b) of seal 121 in chin region 160.
  • seal 121 having such thickness is compliant to provide a comfortable fit.
  • a respiratory protection device may be further understood in view of a reference plane defined with respect to mask body 110 and shown in Figure 2.
  • a mid-sagittal plane 190 bisects respiratory protection device 100 into imaginary left and right halves.
  • Support extension 131 has a length (1) along mid-sagittal plane 190 between seal 121 and outer peripheral edge 135.
  • a length 1 between approximately 5 mm and 30 mm, approximately 9 mm and 20 mm, or of approximately 12 mm, results in a support extension that provides stability and support while generally providing comfortable positioning on the nose of a user.
  • length (1) may be measured between an intersection 191 of an outer edge of seal 121 and support extension 131, and an outer peripheral edge 135 of nose region 130.
  • support extension 131 has total thickness (t) between an outer surface 132 and an inner surface 133, and substantially uniform at all points along length (1), of between approximately 0.7 mm and 3 mm, 1 mm and 2 mm, or of approximately 1.3 mm. Such a thickness minimizes interference with eyewear or other personal protective equipment that may be worn in combination with respiratory protection device 100. In other exemplary embodiments, thickness (t) of support extension 131 varies along length (1).
  • a respiratory protection device having a mask body as described herein provides several benefits. While elastomeric face masks of prior respiratory protection devices may interfere with eyewear, such as safety eyewear or prescription eyewear, the present disclosure provides a mask that is more suitable for use with eyewear.
  • a mask body having a nose region that includes a support extension separate from a seal allows the thickness of the seal to be relatively less, and the overall thickness of the mask body in a nose region to be reduced. Rather than requiring a nose region seal to provide primary sealing and support for the mask body as in many prior devices, a support extension may provide significant support. The presence of a support extension also allows a seal in the nose region to be positioned lower and closer to the tip of a user's nose.
  • Eyewear may be worn in combination with such a mask body with the eyewear supported on the nose of a user above the support extension and/or supported on the support extension of the mask body.
  • FIG. 4 shows an exemplary mask body 410 including a seal 421 and support extension 431. Seal 421 may extend generally straight outwardly and/or roll slightly outwardly when mask body 410 is positioned on the face of a user.
  • Figure 5 shows another exemplary mask body 510 including a seal 521 and support extension 531. Seal 521 includes a foam, gel, or other suitable material positioned on mask body 510 to make sealing contact with a face of a user when mask body 510 is positioned for use.
  • the foam is made of a relatively soft and compliant material, and may include polypropylene, styrene-ethylene-butylene-styrene, polyurethane, thermoplastics, thermosets, rubber, and/or other suitable materials.
  • the gel or other suitable material may be encapsulated to provide a relatively soft and compliant material that may contact the face of a user and provide an appropriate seal.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Emergency Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
PCT/US2014/055334 2013-09-24 2014-09-12 Respiratory mask having a nose support extension Ceased WO2015047745A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA2924645A CA2924645A1 (en) 2013-09-24 2014-09-12 Respiratory mask having a nose support extension
AU2014328022A AU2014328022B2 (en) 2013-09-24 2014-09-12 Respiratory mask having a nose support extension
BR112016006503A BR112016006503A2 (pt) 2013-09-24 2014-09-12 máscara respiratória com uma extensão de suporte nasal
RU2016111707A RU2640984C2 (ru) 2013-09-24 2014-09-12 Респираторная маска с носовым опорным элементом-расширителем
JP2016516564A JP6541649B2 (ja) 2013-09-24 2014-09-12 鼻支持拡張部を有する呼吸用マスク
CN201480050836.0A CN105530826B (zh) 2013-09-24 2014-09-12 具有鼻部支撑延伸部的呼吸面罩
EP14846919.0A EP3048914A4 (en) 2013-09-24 2014-09-12 Respiratory mask having a nose support extension
KR1020167010519A KR102386181B1 (ko) 2013-09-24 2014-09-12 코 지지 연장부를 갖는 호흡 마스크

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/034,927 US9776023B2 (en) 2013-09-24 2013-09-24 Respiratory mask having a nose support extension
US14/034,927 2013-09-24

Publications (1)

Publication Number Publication Date
WO2015047745A1 true WO2015047745A1 (en) 2015-04-02

Family

ID=52689849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/055334 Ceased WO2015047745A1 (en) 2013-09-24 2014-09-12 Respiratory mask having a nose support extension

Country Status (11)

Country Link
US (1) US9776023B2 (enExample)
EP (1) EP3048914A4 (enExample)
JP (1) JP6541649B2 (enExample)
KR (1) KR102386181B1 (enExample)
CN (1) CN105530826B (enExample)
AU (1) AU2014328022B2 (enExample)
BR (1) BR112016006503A2 (enExample)
CA (1) CA2924645A1 (enExample)
PE (1) PE20161249A1 (enExample)
RU (1) RU2640984C2 (enExample)
WO (1) WO2015047745A1 (enExample)

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CN106730192B (zh) * 2016-11-23 2018-12-18 中国人民解放军第三军医大学第三附属医院 无创呼吸机下颚固定装置
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EP3048914A1 (en) 2016-08-03
KR102386181B1 (ko) 2022-04-14
BR112016006503A2 (pt) 2017-08-01
US20150083137A1 (en) 2015-03-26
AU2014328022A1 (en) 2016-04-07
RU2016111707A (ru) 2017-10-30
RU2640984C2 (ru) 2018-01-12
JP2016534764A (ja) 2016-11-10
CN105530826B (zh) 2017-06-09
CA2924645A1 (en) 2015-04-02
EP3048914A4 (en) 2017-06-28
CN105530826A (zh) 2016-04-27
US9776023B2 (en) 2017-10-03
PE20161249A1 (es) 2016-11-12
JP6541649B2 (ja) 2019-07-10
AU2014328022B2 (en) 2017-06-15
KR20160060702A (ko) 2016-05-30

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