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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
  • A61M16/06—Respiratory or anaesthetic masks
  • A61M16/0605—Means for improving the adaptation of the mask to the patient
• • 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. mouth-to-mouth respiration; Tracheal tubes
  • A61M16/06—Respiratory or anaesthetic masks
  • A61M16/0683—Holding devices therefor
• • 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. mouth-to-mouth respiration; Tracheal tubes
  • A61M16/10—Preparation of respiratory gases or vapours
  • A61M16/105—Filters
  • A61M16/106—Filters in a path
• • 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
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
  • A61M2205/0238—General characteristics of the apparatus characterised by a particular materials the material being a coating or protective layer

Definitions

• the present invention relates to a facial breathing mask.
• Masks have also been proposed to be molded on the patient's own face using a malleable material shaped between a connecting piece of the pipe supplying the blown gas mixture and the face, closely matching the contours of the face. This material has the disadvantage of a long installation which is sometimes prohibitive. roof in view of the urgency of the intervention.
• the present intervention intends to overcome these drawbacks by means of a mask of simple structure which can be put into service very quickly, which is comfortable because light and perfectly adapted to the morphology of the face, and which meets the requirements of sterility and asepsis. to respect.
• the subject of the invention is therefore a facial mask, in particular for mechanical ventilation of a patient, comprising means interposed between an inspiration-expiration tubing and at least one of the patient's nasal or oral orifices for ensure a tight connection between the tubing and the patient's airways.
• these means comprise a thin shell delimited by a concave interior surface which is substantially ovoid, the top of which is provided with an opening, a flexible and thick lining, which can be fitted inside the shell, extending beyond this shell in a sealing bead for marrying, by deforming, the part of the face surrounding the outlet of the respiratory tract, the lining having a tubular tip capable of being snapped into the opening of this shell and forming a connection sleeve for the tubing and a harness for attaching the mask to the head of the user comprising straps fixed to the shell.
• FIG. 1 is a schematic exterior view of a mask according to the invention applied to the face of a user
• FIG. 2 is a median section of this mask
• FIG. 3 illustrate by partial sectional views, alternative embodiments of a mask whose flexible lining has a conforma ⁇ tion reinforcement
• FIG. 6 illustrates the harness buckling means separated from the means of fixing the straps on the hull.
• the mask of the invention comprises a shell 1 made of thin plastic material, by injection, thermoforming or any suitable means so as to have a substantially conical or rather ovoid shape.
• the narrowest part of this shell is intended to cover the bony part of the nasal bridge while the widest lower part is supported on the anterior part of the lower jaw.
• the material used has a certain elastic flexibility so as to be able to deform slightly when the mask is applied to the patient's face.
• the top of this shell is provided with a substantially circular opening 2. Its outer face is equipped with means for fixing the ends of the straps 3 and 4 of a harness for fixing the mask to the face of the patient 5.
• This fixing can be ensured by any known means (bonding, stapling ...) or by to poles, not shown, in one piece with the shell around which the straps are fixed.
• the straps will form, with the shell, open or closed loops, elastic or not, which will make it possible to adjust and / or adjust the force of application of the mask on the face of the patient.
• the ends of one of the straps called the upper strap because it rather passes towards the top of the head, are connected in lower lateral zones of the mask, that is to say under the opening. 2 while the ends of the other strap, called the lower strap because it passes at the level of the patient's neck, are connected to the shell in upper lateral zones, therefore above the level of the opening 2.
• the straps of the harness cross near the hull. This arrangement optimizes the distribution of the effort of applying the mask on the patient's face.
• the shell 1 receives on its inner surface a lining 6 whose outer surface is of shape complementary to that of the inner surface 7 of the shell 1 so as to closely match it.
• This lining is made of a flexible material, for example polyurethane foam, covered with latex. This material has the advantage of being very well supported by the patient.
• the skin of the filling can also be siliconized in case of allergic problems.
• the attachment of the lining to the mask shell is ensured by a tubular end piece 8, in a single piece with the lining, which is introduced into the opening 2. Maintaining the end piece 8 in the opening 2 is ensured by elastic deformation of the tip and is reinforced by a snap-on bead 9 which locks this positioning.
• the functions of the lining thus placed in the hull are of several types.
• the lining first constitutes a sort of relatively thick cushion which seals the application by slightly overflowing outside the shell into a bead 6a which can deform under the force of application of the mask between the edge of the shell and face, to ensure continuity of contact.
• the good quality of this contact makes it possible to contain the suppression of ventilation which can reach 25 millibars.
• It also constitutes a filling material for the shell, making it possible to adjust the dead space inside the mask to a minimum.
• the tubular end-piece for fixing the lining to the shell receives the end of the breathing-inspiration tubing 10, frictionally holds this tubing in place and seals the connection.
• a thread or a notching can be provided between tubing and nozzle.
• the lining is very easily separable from the shell, therefore disposable after each use. It is possible to have a single shell model and to adapt several filling models to it depending on the morphology of the patient's face.
• the shell is reusable and easily sterilizable.
• the connection of the tubing to the mask is also very simplified without being subject to untimely disconnection.
• the mask of the invention is finally extremely light, which is a significant factor of comfort.
• Figures 3 to 5 illustrate a mask in which the foam 6 comprises, in the vicinity of the bead 6a., Means for perfecting the conformation of this bead to the shape of the face to which it is applied. These means are of the type of a frame deformable between two states.
• this frame is a tubular chamber 11 which is embedded in the foam 6 and which can be filled with a material which can be hardened by means of the end piece 12.
• the wall of this chamber is deformable without being elastic and its section does not is not constant. The parts of larger section will be located where the face has concavities (near the nose for example) and those of smaller section to the right of the convexities of the face (cheekbones for example).
• the frame consists of a tubular sheath 13 filled with a divided or pulverulent material 14.
• a nozzle 15 equipped with a non-return valve which has the property of stiffening the sheath which thus retains the shape that has been printed on it.
• the frame consists of a metal insert 16 in the form of a wire or ribbon which can be deformed manually and retains its deformation, thus personalizing the shape of the bead 6a.
• the mask shown in Figure 3 has a secondary orifice 17 with a guide and sealing tip 18 for passage, for example of a gastric tube, which avoids passing this tube between the face and the bead and create leaks.
• the shell 1 may present, for example at the orifice 17, a transparent part forming a viewing window for inspecting the interior of the mask in service on a patient.
• the foam 6 will have at the right of this window a corresponding cut.
• FIG. 6 a practical arrangement of the harness 3,4 has been shown.
• the straps 3 and 4 comprise means 19 for adjusting their length known in themselves and in their association with fastening means in the form of a clip with elastic tabs 20. This arrangement makes it possible to carry out a single adjustment of the fixing harness which is kept despite the opening of the harness.
• the straps 3 and 4 can be permanently fixed to the shell 1 by any known means or simply coupled to this shell by dissociable stapling means (textiles with cooperation of shapes for example).
• dissociable stapling means textiles with cooperation of shapes for example.
• the invention has been described in its application to a bucco-nasal breathing mask. It also relates to a nasal mask only, the latter being supported on the upper jaw between nose and mouth. For other applications, the nozzle can simply constitute the support for an easily exchangeable particle or chemical filter.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=9412997

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (125)

Family Cites Families (17)

• 1991
  • 1991-05-22 FR FR9106153A patent/FR2676650B1/fr not_active Expired - Fee Related
• 1992
  • 1992-05-20 JP JP4511272A patent/JPH06508272A/ja active Pending
  • 1992-05-20 WO PCT/FR1992/000448 patent/WO1992020395A1/fr not_active Application Discontinuation
  • 1992-05-20 EP EP92911284A patent/EP0585324A1/de not_active Withdrawn
  • 1992-05-20 US US08/150,073 patent/US5429683A/en not_active Expired - Fee Related
  • 1992-05-20 CA CA002109710A patent/CA2109710A1/fr not_active Abandoned

Non-Patent Citations (1)

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