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
  • A61M16/10—Preparation of respiratory gases or vapours
  • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
  • A61M16/122—Preparation of respiratory gases or vapours by mixing different gases with dilution
  • A61M16/125—Diluting primary gas with ambient air

Definitions

• the mask does not restrain or distort the conversation of the patient.
• the tube in the oxygen mask is provided with a large number of outlet holes and is arranged at a distance within and along a greater part of the edge of the mask. This secures an even oxygen flow.
• the filter material may, for example, be a paper filter material. Such a material is almost odourless and further stops odours from the environment, such as smoke.
• a preferred design of the mask is a substantially hemispheric form.
• Fig. 1 illustrates in a side view a first embodiment of an oxygen mask according to the present invention in usage mode
• Fig. 2 illustrates in an inside view the oxygen mask of fig. 1,
• Fig. 3 illustrates in an inside view a second embodiment of an oxygen mask according to the present invention
• Fig. 4 illustrates in an inside view a third embodiment of an oxygen mask according to the present invention.
• an oxygen mask 1 is formed of a paper filter material 2, which is substantially designed as a hemisphere and which comprises fixing means 3 for fixing over the nose and mouth portion of the patient, for example by means of rubber bands 3 attached to the sides 4 of the mask 1, which rubber bands are adjustably connected in the neck of the patient (not shown) .
• Oxygen is supplied to the mask by means of a supply tube 5, which branches off into two outlet tubes 6.
• the branching preferably occurs inside a branching box 7 and the branched outlet tubes 6 run through two holes 9 in the lower edge of the mask 1 into the mask 1.
• the two branched outlet tubes 6 form a common loop without any interruption, which is arranged a small distance from, on the inside, and along the edge of the mask 1. See fig. 2.
• the outlet tube 6 is provided with outlet holes 8 arranged along the outlet tube 6 and preferably directed towards the centre of the mask 1. An advantageous flow of oxygen is achieved by providing the outlet tube 6 with a large number of outlet holes 8.
• a second embodiment of the present invention is illustrated where the two branched outlet tubes 6 run along the edge of the mask 1, but not all the way up so that they meet, but forms a U-configuration.
• a third embodiment is illustrated where the supply tube 5 changes into being an outlet tube 6, without branches, approximately where the tube runs through a hole 9 into the mask 1.
• the outlet tube 6 is arranged along the majority of the edge of the mask 1, forming a hook configuration.
• this mask may also be used for other gases, for example laughing-gas.

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)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20278068

Family Applications (1)

Country Status (3)

Cited By (2)

Citations (1)

• 2000
  • 2000-01-11 SE SE0000065A patent/SE514464C2/sv not_active IP Right Cessation
• 2001
  • 2001-01-09 AU AU2001227215A patent/AU2001227215A1/en not_active Abandoned
  • 2001-01-09 WO PCT/SE2001/000029 patent/WO2001051113A1/en not_active Ceased

Patent Citations (1)

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