EP0982049A1 - Verbesserte Gesichtsmaske für selbständiges Luftatemgerät - Google Patents

Verbesserte Gesichtsmaske für selbständiges Luftatemgerät Download PDF

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Publication number
EP0982049A1
EP0982049A1 EP98402120A EP98402120A EP0982049A1 EP 0982049 A1 EP0982049 A1 EP 0982049A1 EP 98402120 A EP98402120 A EP 98402120A EP 98402120 A EP98402120 A EP 98402120A EP 0982049 A1 EP0982049 A1 EP 0982049A1
Authority
EP
European Patent Office
Prior art keywords
face
straps
face mask
fixed
frame
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Withdrawn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
EP98402120A
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English (en)
French (fr)
Inventor
David R. Lewis
Craig Martin
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.)
International Safety Instruments Inc
Original Assignee
International Safety Instruments Inc
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 International Safety Instruments Inc filed Critical International Safety Instruments Inc
Priority to EP98402120A priority Critical patent/EP0982049A1/de
Publication of EP0982049A1 publication Critical patent/EP0982049A1/de
Withdrawn legal-status Critical Current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
    • 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
    • A62B18/082—Assembling eyepieces, lenses or vision-correction means in or on gas-masks
    • 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
    • A62B18/084—Means for fastening gas-masks to heads or helmets

Definitions

  • This invention relates generally to face masks, and is more particularly concerned with an improved face mask for a self contained breathing apparatus.
  • a face mask for a self contained breathing apparatus generally includes about six straps fixed to the face mask and to the head harness.
  • the straps typically, are elastic, and pass through roller buckles to allow easy tightening of the straps.
  • the technique is to tighten each of the six straps to pull the mask's seal tightly against the face to effect a good seal. Since the straps are elastic, however, they tend to pull a person's hair during tightening. Further, the six straps and buckles are arranged so the person must pull on the straps in a direction towards his back to tighten the straps. This is an awkward task, and renders tightening of the mask slow and difficult.
  • the use of corrective lenses has been expensive and troublesome.
  • One technique is to have the corrective lenses ground into the face mask itself. This is usually very expensive, and does not allow the sharing of masks.
  • Another technique is to attach spectacles to nibs fixed to the mask, the nibs being adapted to receive the spectacle frames at the usual hinge point for the temple pieces. This arrangement causes difficulty in affixing the spectacles properly, and is time consuming.
  • Another technique is to fix the spectacles to a bracket or the like that is fixed to the face plate. Again, there is some difficulty in obtaining proper alignment.
  • the seal around the face mask is a source of some problems.
  • a firefighter or the like who wears a helmet while wearing a face mask, the seal of the face mask tends to interfere with the helmet, rendering the helmet uncomfortable.
  • many people's heads are slightly smaller at the temples, which militates against a secure seal at the temples.
  • the prior art has not provided a face mask for a self contained breathing apparatus that is easily adaptable to a variety of different people with different physiognomies.
  • the present invention provides a face mask for a self contained breathing apparatus, the face mask including a head harness attached to the mask by a plurality of straps, all such straps being fixed to a headpiece of net or cloth form. Two of the straps are easily adjustable, and act on the headpiece to pull the seal of the face mask snugly against the face.
  • the nose cup in the face mask of the present invention is made in a medium size, and is altered to fit small and large people.
  • the lower area of the nose cup is cut out and fixed together to make the nose cup smaller; and, for fitting large people the lower portion of the nose cup is simply cut away to give some freedom.
  • the face mask seal is maintained by the seal around the mask.
  • the mask of the present invention defines a receptacle on the nose cup, the receptacle being designed to receive a mounting member.
  • the mounting member then receives a sliding block that carries a pair of spectacles.
  • any person can place his own mounting member, with spectacles attached, into the receptacle.
  • the mounting member is movable with respect to the receptacle to allow adjustment towards and away from the person's face, and the sliding block allows movement up and down for proper alignment of the lenses with the eyes.
  • the seal of the mask of the present invention deviates slightly inwardly at the temples of the wearer so there will be a secure seal even with somewhat unusual physiognomy. Also, the seal at the forehead is reduced to a single thickness to reduce interference with helmets or the like.
  • Fig. 1 shows a face mask 10 having a transparent face plate 11, an inner, frill face seal 12 surrounding the face plate 11 and fixed to the frame 13, and a nose cup 14.
  • the conventional face mask has about six points for attachment of straps to the frame 13, and a person must adjust each of the six straps to achieve uniform pressure, and good sealing between the person's face and the seal, such as the seal 12.
  • Fig. 2 in conjunction with Fig. 1, it will be seen that there are four connecting points designated at 15, 16, 18 and 19. Straps 20 and 21 are connected to connecting points 15 and 16, and are also connected to a head piece 22. The straps 20 and 21 are preferably non-stretchable, and are permanently fixed to the head piece 22 and the frame 13 without buckles or the like for adjustment of the straps.
  • the head piece 22 is here illustrated as of a net form, but it should be understood that a woven fabric or the like can be used equally well.
  • the head piece 22 should be made of a material that is not stretchable, but is preferably dimensionally unstable.
  • one preferred material is a net made of "Kevlar” (a polyaramid fiber) or other strong, non-elastic fiber. Numerous materials will suggest themselves to those skilled in the art.
  • the top of the mask 10 has the straps 20 and 21 fixed to the head piece 22.
  • the bottom of the mask is held by straps 24 and 25 connected to connecting points 18 and 19 respectively.
  • the straps 24 and 25 are engaged with buckles 26 and 28, the buckles 26 and 28 being fixed to an apron 29 on the head piece 22. It should therefore be understood that the buckles 26 and 28 are fixed with respect to the apron 29, and the straps 24 and 25 can be lengthened or shortened by appropriate manipulation of the buckles 26 and 28.
  • Figs. 1 and 2 should be understandable.
  • One will first lengthen the straps 24 and 25 sufficiently to allow the straps 24 and 25 to pass on each side of the person's head, and to put the mask 10 in place on the face.
  • the head piece 22 will extend over the person's head, and somewhat down the back of the head.
  • the strap ends 30 and 31 are pulled.
  • the buckles 26 and 28 will be conventional roller buckles so that pulling on the strap ends 30 and 31 will shorten the straps 24 and 25, and lifting the ends of the buckles will release the buckles and allow lengthening of the straps.
  • the head piece 22 extends generally over the head, so the strap ends 30 and 31 are positioned around the base of the skull, and are oriented so that the pulling force is in a generally forward and downward direction.
  • the pulling is an easy, natural motion.
  • the two straps are shortened, the entire head piece 22 is tightened.
  • the head piece is non-stretchable, but is dimensionally unstable, so the head piece conforms to the shape of the head, and the face mask 10 is pulled snugly against the face.
  • the nose cup 14 must fit properly.
  • the nose cup 14 must fit over the bridge of the nose, and contain the mouth and chin. Because of this, face masks are generally made in three sizes, requiring three different molds for molding the three different nose cups.
  • the present invention provides a method for fitting all sizes with a single molded nose cup
  • the present invention comprises the making of only one size nose cup 14, and altering the nose cup to fit either a small or a large adult.
  • Fig. 3 illustrates a nose cup 14a adjusted to fit a small person.
  • the lower portion 32 that is designed to receive the person's chin has been cut and fixed together, as by staples 34. More specifically, a V-shaped piece will be removed from the portion 32, and the edges brought together and fastened. It will be understood that this shortens the nose cup from top to bottom.
  • the cut edges can be fixed together by staples 34 as shown, or can be stitched, glued, or otherwise fastened.
  • Fig. 4 illustrates a nose cup 14b that has been altered to fit a large person.
  • this nose cup it will be noticed that an area of the lower portion 32 has been cut away at 35. Since the lower part of the face is longer than average, simply removing enough of the nose cup 14b to allow room for the person's chin well adapts the mask. It will be understood that the nose cup 14b is within the seal 12, so the removed portion of the nose cup 14b causes no problem in use of the face mask 10.
  • FIGs. 5 and 6 of the drawings show eyeglasses for use in a mask 10, and mounting means for the eyeglasses. It will be seen that the eyeglasses themselves comprise two lenses 40 and 41 mounted in frames 42 and 44, the frames 42 and 44 being connected together by a bridge 45.
  • a pair of support arms 46 is fixed to the bridge 45, and extend forward and down where they receive a block 48.
  • ribs 49 and 50 are placed on the nose cup on each side of the apex of the nose cup.
  • Each of the ribs 49 and 50 defines a hole longitudinally therein for receiving a mounting member 51.
  • the mounting member 51 is here shown as formed of wire or the like and including a pair of legs 52, each leg being received by one of the ribs 49 and 50.
  • the upper portion of the mounting member is bent upwardly as shown at 54, and passes though the block 48.
  • the mounting member 51 can slide into and out of the ribs 49 and 50 to move the upward portion 54 back and forth to be nearer to or farther from the eyes of the person wearing the mask 10.
  • the holes in the ribs 49 and 50 are sized to grip the mounting member 41 sufficiently that the member will remain in the chosen position.
  • the block 48 is preferably formed of an elastomeric material, and the holes that receive the mounting member 41 are also small, so the block 48 will grip the mounting member 14.
  • the block 48 can be raised or lowered on the mounting member 51 to place the lenses 40 and 41 properly with respect to the eyes of the person wearing the mask 10.
  • the eyeglasses can be adjusted vertically so the eyes will be at the axes of the lenses, and horizontally to place the lenses the proper distance from the eyes.
  • Fig. 7 shows the mask in cross-section so the construction of the seal can be seen.
  • the material of the seal 12 extends from the face contacting portion to the rigid frame 55 of the mask 10.
  • the usual construction is shown at the lower end of the mask 10 adjacent to the chin receiving area 56, and it will be noticed that there is a double thickness of rubber or other material at 58 to engage the face of the wearer.
  • the portion 59 is adapted to engage the forehead of the wearer and seal thereagainst. In the conventional mask, this area too has a double thickness, being formed the same as the lower portion of the seal.
  • the area 59 is a single thickness, and an integrally formed flange 60 extends to the rigid frame 55.
  • the portion 59 of the seal for the mask is thin enough to reduce the bulkiness of the seal, and the consequent discomfort of the helmet.
  • FIG. 8 of the drawings the rear elevation of the mask 10 is shown.
  • the mask 10 is substantially the same as that depicted in Figs. 1 and 2, so the same reference numerals are used.
  • the seal 12 includes a web that extends from the face-contacting portion to the rigid frame 55, that web is shown somewhat in Fig. 8 and is designated at 61.
  • the web 61 is lengthened somewhat to position the temple portions 62 inwardly of the usual curve of the seal 12. Since the seal 12 is made of rubber or other elastomeric material there is sufficient resilience to fit a person who does not sink in at the temples; but, for those whose heads are smaller at the temples, the closer temple areas will assure a good seal.
  • the present invention provides a face mask for a self-contained breathing apparatus that is easy and comfortable to use, and that can be adapted for use by any adult.
  • the head harness is quick and simple to use, and is more comfortable than the conventional head harness.
  • the nose cup allows one size of the nose cup to be adapted to any adult wearer; the seal adapts the mask to different physiognomies and uses; and, the eyeglasses mount provides for easy insertion and removal of eyeglasses. When the eyeglasses are installed, they can quickly be adjusted to fit the face of the wearer, and they will be held in place as long as required.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP98402120A 1998-08-26 1998-08-26 Verbesserte Gesichtsmaske für selbständiges Luftatemgerät Withdrawn EP0982049A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98402120A EP0982049A1 (de) 1998-08-26 1998-08-26 Verbesserte Gesichtsmaske für selbständiges Luftatemgerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98402120A EP0982049A1 (de) 1998-08-26 1998-08-26 Verbesserte Gesichtsmaske für selbständiges Luftatemgerät

Publications (1)

Publication Number Publication Date
EP0982049A1 true EP0982049A1 (de) 2000-03-01

Family

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Family Applications (1)

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EP98402120A Withdrawn EP0982049A1 (de) 1998-08-26 1998-08-26 Verbesserte Gesichtsmaske für selbständiges Luftatemgerät

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EP (1) EP0982049A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10828452B2 (en) 2014-09-16 2020-11-10 Fisher & Paykel Healthcare Limited Intramold headgear
US10874814B2 (en) 2014-09-16 2020-12-29 Fisher & Paykel Healthcare Limited Headgear assemblies and interface assemblies with headgear
US11253668B2 (en) 2016-03-16 2022-02-22 Fisher & Paykel Healthcare Limited Strap assembly, strap connector, headgear, headgear assembly, method of forming headgear, tubular connector, patient interface and method of joining straps
US11607518B2 (en) 2016-03-16 2023-03-21 Fisher & Paykel Healthcare Limited Directional lock for interface headgear arrangement
US11648365B2 (en) 2014-09-19 2023-05-16 Fisher & Paykel Healthcare Limited Headgear assemblies and interface assemblies with headgear
US11806452B2 (en) 2012-08-08 2023-11-07 Fisher & Paykel Healthcare Limited Headgear for patient interface
US11819618B2 (en) 2016-03-16 2023-11-21 Fisher & Paykel Healthcare Limited Intra-mould substrate
US11865263B2 (en) 2009-12-23 2024-01-09 Fisher & Paykel Healthcare Limited Patient interface and headgear
US11878119B2 (en) 2018-03-16 2024-01-23 Fisher & Paykel Healthcare Limited Headgear with lock disengagement mechanism
US11986595B2 (en) 2017-12-21 2024-05-21 Fisher & Paykel Healthcare Limited Respiratory mask system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250894A1 (de) * 1986-06-27 1988-01-07 Drägerwerk Aktiengesellschaft Brillenbefestigung für Schutzmasken
EP0350322A2 (de) * 1988-07-08 1990-01-10 The Minister Of National Defence Of Her Majesty's Canadian Government Kopfbänderung
US5069205A (en) * 1990-04-20 1991-12-03 Figgie International, Inc. Quick-donning head harness assembly
EP0608684A1 (de) * 1993-01-28 1994-08-03 Minnesota Mining And Manufacturing Company Gegossene Kopfbänderung
US5349949A (en) * 1991-10-03 1994-09-27 Intertechnique Face mask with lip, fold, and resilient spring means to improve seal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250894A1 (de) * 1986-06-27 1988-01-07 Drägerwerk Aktiengesellschaft Brillenbefestigung für Schutzmasken
EP0350322A2 (de) * 1988-07-08 1990-01-10 The Minister Of National Defence Of Her Majesty's Canadian Government Kopfbänderung
US5069205A (en) * 1990-04-20 1991-12-03 Figgie International, Inc. Quick-donning head harness assembly
US5349949A (en) * 1991-10-03 1994-09-27 Intertechnique Face mask with lip, fold, and resilient spring means to improve seal
EP0608684A1 (de) * 1993-01-28 1994-08-03 Minnesota Mining And Manufacturing Company Gegossene Kopfbänderung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11865263B2 (en) 2009-12-23 2024-01-09 Fisher & Paykel Healthcare Limited Patient interface and headgear
US11806452B2 (en) 2012-08-08 2023-11-07 Fisher & Paykel Healthcare Limited Headgear for patient interface
US11813384B2 (en) 2014-09-16 2023-11-14 Fisher & Paykel Healthcare Limited Intramold headgear
US10874814B2 (en) 2014-09-16 2020-12-29 Fisher & Paykel Healthcare Limited Headgear assemblies and interface assemblies with headgear
US10828452B2 (en) 2014-09-16 2020-11-10 Fisher & Paykel Healthcare Limited Intramold headgear
US11648365B2 (en) 2014-09-19 2023-05-16 Fisher & Paykel Healthcare Limited Headgear assemblies and interface assemblies with headgear
US11607518B2 (en) 2016-03-16 2023-03-21 Fisher & Paykel Healthcare Limited Directional lock for interface headgear arrangement
US11819620B2 (en) 2016-03-16 2023-11-21 Fisher & Paykel Healthcare Limited Directional lock for interface headgear arrangement
US11819618B2 (en) 2016-03-16 2023-11-21 Fisher & Paykel Healthcare Limited Intra-mould substrate
US11850365B2 (en) 2016-03-16 2023-12-26 Fisher & Paykel Healthcare Limited Strap assembly, strap connector, headgear, headgear assembly, method of forming headgear, tubular connector, patient interface and method of joining straps
US11253668B2 (en) 2016-03-16 2022-02-22 Fisher & Paykel Healthcare Limited Strap assembly, strap connector, headgear, headgear assembly, method of forming headgear, tubular connector, patient interface and method of joining straps
US11986595B2 (en) 2017-12-21 2024-05-21 Fisher & Paykel Healthcare Limited Respiratory mask system
US11878119B2 (en) 2018-03-16 2024-01-23 Fisher & Paykel Healthcare Limited Headgear with lock disengagement mechanism

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