EP0319612A1 - Appareil permettant la parole et la respiration, en particulier pour masques respiratoires de protection - Google Patents

Appareil permettant la parole et la respiration, en particulier pour masques respiratoires de protection Download PDF

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Publication number
EP0319612A1
EP0319612A1 EP87118418A EP87118418A EP0319612A1 EP 0319612 A1 EP0319612 A1 EP 0319612A1 EP 87118418 A EP87118418 A EP 87118418A EP 87118418 A EP87118418 A EP 87118418A EP 0319612 A1 EP0319612 A1 EP 0319612A1
Authority
EP
European Patent Office
Prior art keywords
valve
inner tube
outer tube
end wall
exhalation
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Withdrawn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
EP87118418A
Other languages
German (de)
English (en)
Inventor
Valentin Dipl.-Ing. Nentchev Nentchev
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.)
ZENTRALEN INSTITUT PO CHIMITSCHESKA PROMISCHLENOST
Original Assignee
ZENTRALEN INSTITUT PO CHIMITSCHESKA PROMISCHLENOST
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 ZENTRALEN INSTITUT PO CHIMITSCHESKA PROMISCHLENOST filed Critical ZENTRALEN INSTITUT PO CHIMITSCHESKA PROMISCHLENOST
Priority to EP87118418A priority Critical patent/EP0319612A1/fr
Priority to US07/184,457 priority patent/US4869244A/en
Publication of EP0319612A1 publication Critical patent/EP0319612A1/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a device that allows speech and exhalation with a sound-transmitting device and at least one exhalation valve, which is followed by at least one air outlet opening, in particular for respiratory masks.
  • the sound-transmitting device which consists of a sound-transmitting membrane sealed in a valve support, and the exhalation valve , which has a valve seat on the valve carrier and a valve membrane fixed centrally on the valve seat, arranged one below the other.
  • valve carrier occupies a considerable area of the respirator and there is a relatively large area around the nose and mouth of the person wearing the respirator, in which the mask is not in contact with the face. It is also unfavorable that the sound-transmitting membrane around the off breathing valve are offset with respect to the direction of flow of exhaled air, which affects the sound transmission. Since the area that the exhalation valve occupies is relatively small, the flexibility of the exhalation valve is impaired, so that its resistance per unit area is large, ie a correspondingly high pressure must be generated for the exhalation. In addition, there is only a limited space available, which does not allow a series arrangement of several exhalation valves to increase the degree of protection of the respiratory mask with regard to highly toxic gases or vapors.
  • the object on which the invention is based is therefore to design the device of the generic type in such a way that, with a minimal proportion of the surface of the respirator mask and with a minimal free space around the nose and mouth, it provides perfect protection against toxic gases or vapors, with little resistance when exhaling is and a perfect sound transmission is guaranteed without additional reinforcement.
  • an outer tube in which an inner tube is arranged coaxially, and by an end wall connecting the outer tube and the inner tube in an end region, in which end region the inner tube is hermetically sealed by the sound-transmitting device, which Exhalation valve is arranged sealingly between the inner tube and the outer tube and the air outlet openings are provided in the outer tube between the exhalation valve and the end wall.
  • the exhalation valve expediently consists of a disk-shaped valve seat and a valve membrane arranged on the side of the valve seat facing the end wall, each of which surrounds the inner tube with a central opening.
  • An advantageous embodiment is characterized by a plurality of openings formed in the valve seat concentrically with its central opening.
  • valve membrane consisting of an annular disk made of elastic material can advantageously be provided with ribs on one side or on both sides or have a step-shaped profile.
  • the protective effect can also be increased by at least one additional exhalation valve arranged between the outer tube and the inner tube axially at a distance from the side of the one exhalation valve facing away from the end wall.
  • the device according to the invention it is possible to omit the installation of valves or other elements in the side walls of the mask, so that it can optimally fit against the face.
  • the glasses inserted into the respirator can be placed very close to the eyes, increasing the viewing angle and working with optical ones Devices can be made possible. Since the sound transmission device and the exhalation valves can be positioned on the same axis in close proximity to the mouth, the flow of exhaled air and the sound waves hit the exhalation valves and the sound transmission device in the shortest possible way, which largely reduces transmission losses.
  • the resistance to opening when exhaling is low and the time in which the exhalation valves close after exhalation is finished, thereby preventing the penetration of toxic gases or vapors or other substances . Since the area occupied by the device in the front part of a respiratory mask is practically not larger than the area that is otherwise only occupied by the sound-transmitting device, the construction of the device is very compact.
  • the device that allows speaking and exhaling consists of an outer tube 1 and a coaxial to it arranged inner tube 2, which are connected in Fig. 1 in the left part, ie the part pointing away from the respirator, by an end wall 3, which is formed by a conical extension of the inner tube 2.
  • Exhalation valves 4 are arranged in the annular space formed between the outer tube 1 and the inner tube 2.
  • air outlet openings 5 for the exhaled air.
  • a sound-transmitting device 6 is attached, which hermetically seals the outlet of the inner tube 2 at the front end.
  • each exhalation valve 4 consists of a valve seat 7 and a valve membrane 8, which are sealingly attached between the outer tube 1 and the inner tube 2.
  • the valve seat 7 has the shape of a disk with a central opening 9, to which openings 10 are concentrically arranged, through which the exhaled air flows out.
  • the valve membrane 8 shown in FIG. 4 consists of an elastic material and has the shape of a disc with a central opening 11. Ribs can be provided on one or both sides of the valve membrane 8, the valve membrane 8 can also have a step-shaped profile, which is not shown in detail.
  • the valve membrane 8 is on the end wall 3 facing side of the Ven tilsitzes 7 arranged.
  • a shoulder is provided on the inner tube 2, on which the edge of the valve membrane 8 surrounding the central opening 11 rests and is held by an annular web surrounding the central opening 9 of the valve seat.
  • the valve seat 7 is connected via radial webs to an outer ring web, the inner ring web, the outer ring web and the radial webs delimiting the openings 10 for the passage of the exhaled air.
  • an outer shoulder is formed on the side facing the end wall 3, into which a sealing ring is inserted, which ensures the sealing of the valve seat 7 against the inner wall of the outer tube 1.
  • valve membrane 8 is fixed on the inner tube side and lies sealingly on the outer annular web of the valve seat 7, from which it lifts off due to the pressure during exhalation, as a result of which the exhaled air can flow out through the openings 10 to the air outlet openings 5.
  • the exhaled air thus reaches the outside atmosphere through the air outlet openings 5.
  • the sound vibrations when speaking are transmitted through the inner tube 2 to the sound-transmitting device 6 formed by a membrane and from there in the form of vibrations to the environment. Since the exhalation valves 4 close very quickly after exhaling, the penetration of the air from the outside atmosphere is prevented. Even if small amounts of the outside air through the first exhalation valve 4 directly upstream of the air outlet openings 5 into the space between the outer tube 1 and the inside tube 2 should arrive, this air remains trapped between the exhalation valves 4 and is transported back to the outside atmosphere with the next exhalation.

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)
EP87118418A 1987-12-11 1987-12-11 Appareil permettant la parole et la respiration, en particulier pour masques respiratoires de protection Withdrawn EP0319612A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP87118418A EP0319612A1 (fr) 1987-12-11 1987-12-11 Appareil permettant la parole et la respiration, en particulier pour masques respiratoires de protection
US07/184,457 US4869244A (en) 1987-12-11 1988-04-21 Valve-talking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87118418A EP0319612A1 (fr) 1987-12-11 1987-12-11 Appareil permettant la parole et la respiration, en particulier pour masques respiratoires de protection

Publications (1)

Publication Number Publication Date
EP0319612A1 true EP0319612A1 (fr) 1989-06-14

Family

ID=8197509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118418A Withdrawn EP0319612A1 (fr) 1987-12-11 1987-12-11 Appareil permettant la parole et la respiration, en particulier pour masques respiratoires de protection

Country Status (2)

Country Link
US (1) US4869244A (fr)
EP (1) EP0319612A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2425211C (fr) * 2000-10-13 2009-07-21 Tyco Healthcare Group Lp Appareil d'application de fixation chirurgicale
WO2003008043A1 (fr) * 2001-07-18 2003-01-30 Avon Rubber & Plastics, Inc. Module d'appareil respiratoire avec clapet d'expiration et de transmission de la voix
WO2012023107A1 (fr) 2010-08-19 2012-02-23 Koninklijke Philips Electronics N.V. Valve pour parler actionnée manuellement, pour dispositif respiratoire
USD759807S1 (en) * 2014-05-22 2016-06-21 3M Innovative Properties Company Respirator mask exhalation port
USD795416S1 (en) * 2015-02-27 2017-08-22 3M Innovative Properties Company Respirator mask
USD767116S1 (en) * 2015-02-27 2016-09-20 3M Innovative Properties Company Respirator mask having an exhalation port
US20220023679A1 (en) * 2020-07-23 2022-01-27 Jones Kwadwo Appiah Multipurpose Safety Mask

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730227A (en) * 1923-03-31 1929-10-01 Lewis M Mcbride Gas mask
GB566088A (en) * 1943-03-30 1944-12-13 John Ambrose Sadd Improvements in respirators
GB572888A (en) * 1942-03-18 1945-10-29 Guy R Fountain Ltd Improvements in or relating to respirators
FR999260A (fr) * 1952-01-29
DE921787C (de) * 1944-02-10 1954-12-30 Friedrich Prinz Gasmaske mit Sprecheinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR859582A (fr) * 1938-06-27 1940-12-21 Masque à gaz perfectionné
GB660095A (en) * 1945-12-11 1951-10-31 Paul Charbonnel Improvements in or relating to protecting masks or respirators
DE2643853C3 (de) * 1976-09-29 1984-11-15 Drägerwerk AG, 2400 Lübeck Atemschutzmaske mit Innenmaske
EP0101292B1 (fr) * 1982-08-18 1987-10-28 Avon Industrial Polymers Limited Transmetteur de parole pour masque à gaz
AT378652B (de) * 1983-12-27 1985-09-10 Akg Akustische Kino Geraete Anordnung zur sprachuebertragung aus einer atemschutzmaske

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR999260A (fr) * 1952-01-29
US1730227A (en) * 1923-03-31 1929-10-01 Lewis M Mcbride Gas mask
GB572888A (en) * 1942-03-18 1945-10-29 Guy R Fountain Ltd Improvements in or relating to respirators
GB566088A (en) * 1943-03-30 1944-12-13 John Ambrose Sadd Improvements in respirators
DE921787C (de) * 1944-02-10 1954-12-30 Friedrich Prinz Gasmaske mit Sprecheinrichtung

Also Published As

Publication number Publication date
US4869244A (en) 1989-09-26

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