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WO1993000125A1 - Masque facial etanche - Google Patents

Masque facial etanche Download PDF

Info

Publication number
WO1993000125A1
WO1993000125A1 PCT/SE1992/000436 SE9200436W WO9300125A1 WO 1993000125 A1 WO1993000125 A1 WO 1993000125A1 SE 9200436 W SE9200436 W SE 9200436W WO 9300125 A1 WO9300125 A1 WO 9300125A1
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
face
mask
face mask
hollow section
Prior art date
Application number
PCT/SE1992/000436
Other languages
English (en)
Inventor
Lars Emil Torsten Ingvarsson
Original Assignee
Nolato I Torekov Ab
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 Nolato I Torekov Ab filed Critical Nolato I Torekov Ab
Publication of WO1993000125A1 publication Critical patent/WO1993000125A1/fr

Links

Classifications

    • 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
    • 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
    • A61M2016/0661—Respiratory or anaesthetic masks with customised shape

Definitions

  • the present invention relates to a tightly fitting face mask for application to the face of a person for sur ⁇ rounding the nose and the mouth of said person, delimiting a breathing chamber isolated from the surroundings.
  • Face masks of this kind are previously known and are particularly used as breathing masks or narcosis masks in medical treatment.
  • Narcosis masks generally used in medical treatment suffer from the disadvantage of not providing sufficient sealing effect against the skin which results in leakage of narcosis gas into the surroundings.
  • the narcosis mask In order to remedy the leakage problem it is also known to provide the narcosis mask with double limiting walls forming an evacua ⁇ tion slit at the bottom thereof. The space between the double walls is connected to an evacuation system for eva ⁇ cuating leaking gas.
  • this nar ⁇ cosis mask is "clumsy" in shape and relatively difficult in application and use, it has not prooved to solve the leakage problem in a satisfactory way.
  • the mask With the valve in open position the mask is pressed against the face of the patient so that a complete abutment against the face contour can be assertained.
  • the porous particles of latex foam which during the pressing action will be displaced by protruding face contours, will then be compressed thereby expulsing the air content of the par ⁇ ticles, the displaced air being discharged through the valve into the surroundings.
  • the valve is then closed re- suiting in that the shape of the contact surface against the face obtained by the pressing action is maintained. Since the particles included in the particulate mass en ⁇ closed in the cavity are elastically compressable, it is unavoidable that the particles will undergo a certain ex- pansion after closing off the valve..
  • the object of the present invention is to provide a tightly fitting face mask of the kind mentioned initially, in which the disadvantages mentioned above and inherent in previously known face masks are avoided and which in a simple manner renders possible an exact adaption of the contact surface of the mask to the individual face con- figuration of the face of the wearer, and fixing the shape obtained when the mask is pressed against the face of the wearer.
  • a further object of the invention is to provide a face mask ensuring the retained sealing effect also during face movements which may occur also when the wearer is un- conscious. According to the invention the objects mentioned above are obtained by a design of the face mask in ac ⁇ cordance with the appended claims.
  • fig 1 is a longitudinal sectional view through a face mask according to the invention, taken as indicated with arrows A-A in fig 2
  • fig 2 is a bottom view of the face mask according to fig 1
  • fig 3 a modified embodiment of the face mask ac ⁇ cording to the invention.
  • the face mask shown in the figures comprises a bowl- shaped housing 1 which is open at one side and which may be constructed as a rigid plastic housing or as a relatively stiff rubber housing having a certain flexibility.
  • the upper portion of the housing 1 is provided with a connec ⁇ tion piece 2 having a connection portion 3 for connecting a hose or a tube, not shown in the figures, from a gas source, e.g. oxygene or narcosis gas.
  • a hollow section 4 extending around the housing is disposed at the open side of the housing 1, i.e. the side thereof situated opposit the connection piece 2, said hollow section delimiting said opening.
  • the hollow section 4 is sealingly connected with the bowl-shaped housing 1 at the open side thereof and may be attached to the housing on its outside, as shown in fig 1 and 4, or may form a direct extension of the housing 1.
  • the hollow section 4 is made of a thin, elastically flexible and tenacious material, preferably a latex foil of a thickness of 0,5-1 mm.
  • the cross section of the hollow section 4 is varying around the opening of the housing 1 so that the lower edge of the hollow section 4 has a con ⁇ figuration which substantially corresponds to the face con- tour along the contact line between the hollow section 4 of the housing 1 and the face of a person having a normal face configuration.
  • the hollow section 4 is provided with a connection piece 5 protruding from the hollow sec ⁇ tion, and having a valve 6 fitted therein which in open po- sition connects the cavity with the surroundings and in closed position blocks said connection.
  • the valve 6 pre ⁇ ferably consists of a check valve comprising a ball which is spring actuated against a seat, but may also be of any other design and may e.g. comprise laps or lips which are pressure actuated toward each other.
  • the valve 6 is suit ⁇ ably so designed that it will open by introducing a connec ⁇ tion element, e.g.
  • the cavity 4 is filled up with rigid, smooth particles of a non-com ⁇ pressible material, preferably smooth glass balls 7 or hard, smooth plastic balls.
  • the balls 7, preferably of a diameter in the range of one millimetre, should as men- tioned be smooth and glossy so that they will slide easily with respect to each other and redistributed when the elastically flexible limiting wall of the cavity 4 is made subject to depressions.
  • the hollow section 4 on the underside thereof i.e. the side thereof to be directed towards the face of the wearer
  • an endless, gas tight, soft and elastic gasket 8 which afterwards may be attached by vulcanization or which may be produced integral with the hollow section 4.
  • This gasket which may have various con- figurations, should provide the smallest possible re ⁇ sistance against deformation of the wall of the hollow sec ⁇ tion 4, and at the same time provide a satisfactory sealing against the skin of the face at the same time compensating for face movements which may occur also with an unconscious person.
  • the mask is applied against the face of the user so that the mask surrounds the nose and mouth of the person, thereby delimiting a breathing chamber isolated from the surroundings.
  • the mask is pressed against the face so that a complete contact against the skin of the face around the mask is obtained.
  • a device for evacuating air e.g. syringe of the type injection syringe, is then at ⁇ tached to the valve 6, after which air is evacuated until the wall of the hollow section 4 under the influence of the surrounding air pressure is being pressed against the ball mass 7 enclosed in the cavity.
  • This will result in a fixa ⁇ tion of the position taken by the balls 7 with respect to each other when the mask is being pressed against the face, and thus a fixation of the form of the mask, carefully adapted to the face.
  • the gaskets 8 disposed at the under- side of the hollow section 4 then will secure sealing against the face also during small movements of the face which may occur, e.g. face movements which may occur also with an unconscious person.
  • Fig 3 illustrates a modified embodiment of the face mask according to the invention.
  • This variant differs from the embodiment shown in figures 1-3 only in that the par ⁇ ticle mass 7 enclosed in the cavity of the hollow section 4 is not in contact against the inner side of the cavity wall but is enclosed within a thin protective cover 9 in tight contact with the inner walls of the hollow section 4.
  • This modification is the preferred embodiment, par ⁇ ticularly in case the face mask shall be used as narcosis mask.
  • the object of the protective cover 9 is to prevent, in case of rupture of the limiting wall of the hollow section 4, ball-like particles from flowing out of the hollow section and being inhaled by the person to which said mask is applied. Ruptures of the wall of the hollow section 4 may happen due to ageing phenomena which may occur in the material due to repeated sterilizing treatment of the narcosis mask in an autoclave.
  • the protective cover 9 may e.g. consist of thin hose of cotton cloth having a mesh which is less than the dimen ⁇ sions of the smallest ball-like particle present in the particle mass 7.
  • the periphery length of the hose section should be at least the same as the periphery length of the largest cross section of the hollow section 4, in order to secure complete contact with the inner walls of the cavity.
  • the protective cover 9 is suitably introduced into the hollow section 4 in connection with the manuf cture of the mask, as well as the filling of the ball-like particle mass 7 into the cavity.
  • the face mask may e.g. be provided with a suction pump device integrated into the body of the face mask and being permanently connected with the cavity of the hollow section 4 via the valve 6, e.g. a compressible and inflatable bladder provided with a valve or a common suction pump of the membrane type or of the wobble type having a spring actuated flap.
  • a suction pump device integrated into the body of the face mask and being permanently connected with the cavity of the hollow section 4 via the valve 6, e.g. a compressible and inflatable bladder provided with a valve or a common suction pump of the membrane type or of the wobble type having a spring actuated flap.
  • Such an inte- grated embodiment is particularly advantageous with such face masks in which the wearer himself should be able to carry out the necessary form adaption, e.g. oxygene masks, stack gas masks or gas masks used within the army.

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

Masque facial étanche possédant un côté ouvert conçu pour s'appliquer contre le visage d'une personne et, de ce fait, entourant le nez et la bouche de ladite personne et délimitant une chambre de respiration isolée de l'environnement. Le masque facial comprend un logement (1) en forme de bol, ouvert sur un côté et comportant des parois de limitation imperméables aux gaz. La partie périphérique dudit logement, délimitant ladite ouverture, constitue un profil creux et fermé (4) possédant des parois de délimitation souples. La cavité dudit profil creux (4) est remplie par une matière particulaire (7) constituée par des particules rigides et lisses en matière non compressible, de préférence des billes en verre ou en plastique dur. La partie creuse (4) peut être reliée, par l'intermédiaire d'un clapet (6), à un dispositif servant à évacuer l'air de la cavité, afin de comprimer les parois de limitation élastiques de ladite cavité contre la masse de particules enfermées (7), sous l'effet de la pression ambiante, ce qui fixe la forme obtenue par la masse de particules (7) enfermées dans la cavité, au moyen de la pression du masque contre le visage.
PCT/SE1992/000436 1991-06-20 1992-06-17 Masque facial etanche WO1993000125A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9101909A SE468661B (sv) 1991-06-20 1991-06-20 Taettslutande ansiktsmask
SE9101909-1 1991-06-20

Publications (1)

Publication Number Publication Date
WO1993000125A1 true WO1993000125A1 (fr) 1993-01-07

Family

ID=20383108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000436 WO1993000125A1 (fr) 1991-06-20 1992-06-17 Masque facial etanche

Country Status (2)

Country Link
SE (1) SE468661B (fr)
WO (1) WO1993000125A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425051C1 (de) * 1994-07-15 1995-05-18 Weinmann G Geraete Med Individualmaske
FR2720280A1 (fr) * 1994-05-27 1995-12-01 Mitouard Anne Le Masque respiratoire.
DE19818497C1 (de) * 1998-04-24 2000-02-24 Dirk Schulte Beatmungsmaske
EP1124615A4 (fr) * 1998-10-05 2004-03-31 Respironics Inc Joint personnalisable, masque equipe de ce joint, et procede d'utilisation du joint
WO2009065368A1 (fr) * 2007-11-23 2009-05-28 Weinmann Geräte für Medizin GmbH + Co. KG Masque respiratoire pourvu d'un corps de remplissage, et procédé de fabrication correspondant
US9795754B2 (en) 2006-12-06 2017-10-24 Loewenstein Medical Technology S.A. Ventilator mask with a filler and method of production
CN109498948A (zh) * 2018-12-24 2019-03-22 河北省中医院 一种医学面罩

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877764A (en) * 1956-10-15 1959-03-17 Jr Ellis A Galleher Selective contour retaining mask
GB2045092A (en) * 1979-04-03 1980-10-29 Warne Surgical Products Ltd Face masks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877764A (en) * 1956-10-15 1959-03-17 Jr Ellis A Galleher Selective contour retaining mask
GB2045092A (en) * 1979-04-03 1980-10-29 Warne Surgical Products Ltd Face masks

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720280A1 (fr) * 1994-05-27 1995-12-01 Mitouard Anne Le Masque respiratoire.
DE4425051C1 (de) * 1994-07-15 1995-05-18 Weinmann G Geraete Med Individualmaske
US6895965B2 (en) 1995-09-08 2005-05-24 Respironics, Inc. Customizable seal, mask with customizable seal and method of using such a seal
US7870859B2 (en) 1995-09-08 2011-01-18 Ric Investments, Llc Patient contacting seal and mask using same
US8485190B2 (en) 1995-09-08 2013-07-16 Ric Investments, Llc Patient contacting seal and mask using same
DE19818497C1 (de) * 1998-04-24 2000-02-24 Dirk Schulte Beatmungsmaske
EP1124615A4 (fr) * 1998-10-05 2004-03-31 Respironics Inc Joint personnalisable, masque equipe de ce joint, et procede d'utilisation du joint
US9795754B2 (en) 2006-12-06 2017-10-24 Loewenstein Medical Technology S.A. Ventilator mask with a filler and method of production
WO2009065368A1 (fr) * 2007-11-23 2009-05-28 Weinmann Geräte für Medizin GmbH + Co. KG Masque respiratoire pourvu d'un corps de remplissage, et procédé de fabrication correspondant
CN109498948A (zh) * 2018-12-24 2019-03-22 河北省中医院 一种医学面罩

Also Published As

Publication number Publication date
SE9101909D0 (sv) 1991-06-20
SE9101909L (sv) 1992-12-21
SE468661B (sv) 1993-03-01

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