EP0238937B1 - Sprech- und Höreinrichtung für Atemgeräte - Google Patents

Sprech- und Höreinrichtung für Atemgeräte Download PDF

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Publication number
EP0238937B1
EP0238937B1 EP87103515A EP87103515A EP0238937B1 EP 0238937 B1 EP0238937 B1 EP 0238937B1 EP 87103515 A EP87103515 A EP 87103515A EP 87103515 A EP87103515 A EP 87103515A EP 0238937 B1 EP0238937 B1 EP 0238937B1
Authority
EP
European Patent Office
Prior art keywords
talking
hearing device
switching device
respiratory gas
speech
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.)
Expired
Application number
EP87103515A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0238937A1 (de
Inventor
Fritz Arthur Bänziger
Peter Klein
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0238937A1 publication Critical patent/EP0238937A1/de
Application granted granted Critical
Publication of EP0238937B1 publication Critical patent/EP0238937B1/de
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/26—Communication means, e.g. means for signalling the presence of divers

Definitions

  • the invention relates to a speaking and listening device for breathing devices with a noise suppression device, in which the device wearer is connected to a breathing gas supply that is independent of the environment.
  • Such speaking and listening devices are used in particular by divers, pilots or people who need breathing apparatus during a rescue operation.
  • the filters are designed for certain breathing gas mixtures and diving depth pressures, so that their area of application is limited to the specified operating conditions.
  • the present invention is therefore based on the object of developing a speech and hearing device of the type mentioned in such a way that a suppression independent of acoustic signals, i.e. Damping or shutdown, the breathing noise of the equipment wearer is realized.
  • the object is achieved in that a switching device that responds to the breathing gas flow is provided in the breathing gas line for the speaking and listening device to suppress breathing noises.
  • the hearing and speaking device always suppresses the breathing noises, whereas during the speaking of a device wearer the speech and hearing device remains fully switched on because the breathing gas flow collapses during speaking and does not actuate the switching device.
  • the speaking and listening device can be used regardless of the composition of the breathing gas, and the disturbing breathing noises are immediately suppressed without any switches having to be operated manually.
  • the switching device can optionally be provided in the inhalation line or the exhalation line and in both breathing gas lines, or in a line section common to the inhalation and exhalation. In many cases, however, it is sufficient and proves to be expedient that the switching device is installed in the inhalation branch of the breathing gas supply. Thus, only the inhalation noises are suppressed, which are greater in volume than the exhalation noises and therefore overlap the speech frequencies more disturbingly than the quieter exhalation noises in contrast.
  • the people speaking to one another can advantageously monitor one another by hearing the exhalation noises and thereby receiving information about the normal rhythm of life of the device wearer.
  • the switching device consists of a piston sliding in a sleeve and held under pretensioning force. It is exposed to the flow of breathing gas, and an actuating element is located on its periphery for switching the speaking and listening device.
  • the piston located in the sleeve is moved by the pressure of the inhalation or exhalation flow in the direction of the flow path against the biasing force exerted, for example, by a spring.
  • the actuating element switches the contacts of the switching device of the device carrier in question, so that a transmission of breathing noises to the listening device carriers connected is interrupted or damped.
  • the passage opening allows the breathing gas to flow freely through the switching device during one breath.
  • the actuating element can be attached at any suitable location on the switching device. A suitable location is on the circumference of the piston and can be, for example, a permanent magnet that actuates a corresponding REED contact in the outer region of the sleeve.
  • the passage opening is advantageously through a valve which releases the flow path element completed.
  • a simple embodiment of this valve element consists of a spring-loaded poppet valve. The opening behavior of this additional valve is matched to the movement of the piston in such a way that it only opens when the actuating element has switched the speaking and listening device.
  • the single figure shows a switching device (18) as it can be used in the exhalation branch of a breathing gas supply, for example for divers.
  • the switching device with its inlet connection (9) and outlet connection (10) is inserted into the exhalation branch, so that the direction of flow of the respiratory gas flow is defined by the arrows (16, 17).
  • a piston (7) is slidably received in an example cylindrical sleeve (1).
  • the piston (7) is pressed against two flow lugs (14) against the direction of flow (16) by means of a spring (6).
  • a passage opening (13) which is closed by a valve plate (4).
  • a valve spring (8) which is supported against a valve housing (15), loads the valve plate (4).
  • Two connections (11, 12) are led away from the REED contact (2), which lead to a speech and hearing device, not shown.
  • the speech microphone of the speech and hearing device which is also not shown, is switched.
  • the switching device is in the rest position, in which, for example, the permanent magnet (3) keeps the REED contact (2) closed, so that the speech microphone is switched for the transmission of speech signals.
  • the speech signal is transmitted and the small amount of exhaled air of low flow velocity necessary for speaking enters the switching device via the inlet connection (9). Because of the low flow rate, the switching device is not actuated, but the exhaled air necessary for speaking can escape through the switching device to the outlet port (10) via a bypass opening (5). Only when the device wearer has stopped speaking and after he has possibly taken an inhalation will the exhaled air exhaled via the inlet connection (9) press against the face (19) of the piston (7) exposed to the respiratory gas flow at a high flow rate.
  • the spring (6) and valve spring (8) are matched to one another in such a way that the spring force of the valve spring (8) keeps the valve plate (4) closed during the piston stroke, so that the piston (7) counteracts the spring force of the spring (6) in the direction the arrows (16, 17) is moved.
  • the magnet (3) moves away from the REED contact (2) and opens it, so that the electrical signal circuit of the device microphone of the speech and hearing device is damped or interrupted. From this point on, speech signals and breathing noises are no longer transmitted.
  • the pressure of the exhalation flow overcomes the spring force of the valve spring (8), so that the valve plate (4) lifts up from the passage opening (13) and releases a passage for the exhalation gas to the outlet port (10).
  • the bypass opening (5) is dimensioned so small compared to the other opening cross-sections that the breathing gas flow that constantly escapes during exhalation is negligible and has no effect on the force conditions on the switching device.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP87103515A 1986-03-19 1987-03-11 Sprech- und Höreinrichtung für Atemgeräte Expired EP0238937B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863609097 DE3609097A1 (de) 1986-03-19 1986-03-19 Sprech- und hoereinrichtung fuer atemgeraete
DE3609097 1986-03-19

Publications (2)

Publication Number Publication Date
EP0238937A1 EP0238937A1 (de) 1987-09-30
EP0238937B1 true EP0238937B1 (de) 1989-05-03

Family

ID=6296684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103515A Expired EP0238937B1 (de) 1986-03-19 1987-03-11 Sprech- und Höreinrichtung für Atemgeräte

Country Status (6)

Country Link
US (1) US4799263A (enExample)
EP (1) EP0238937B1 (enExample)
DE (2) DE3609097A1 (enExample)
DK (1) DK140087A (enExample)
FI (1) FI865232A7 (enExample)
NO (1) NO865081L (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101508333B (zh) * 2009-03-13 2011-01-19 武汉海王机电工程技术公司 机械式自动对接释放装置

Families Citing this family (34)

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Publication number Priority date Publication date Assignee Title
US5159641A (en) * 1991-07-31 1992-10-27 Figgie International, Inc. Microphone circuit control mechanism for breathing apparatus
US5325892A (en) * 1992-05-29 1994-07-05 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
DE69312509T2 (de) * 1992-05-29 1998-02-26 Minnesota Mining And Mfg. Co., Saint Paul, Minn. Rückschlagventil
US5307793A (en) * 1992-06-29 1994-05-03 Puritan-Bennett Corporation Microphone signal attenuating apparatus for oxygen masks
KR100326132B1 (ko) 1993-10-01 2002-07-31 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 호흡기마스크및이호흡기마스크에사용되는음성전달어댑터
US6121881A (en) * 1994-09-02 2000-09-19 Safety Tech Industries, Inc. Protective mask communication devices and systems for use in hazardous environments
US5990793A (en) * 1994-09-02 1999-11-23 Safety Tech Industries, Inc. Firefighters integrated communication and safety system
US5574794A (en) * 1995-01-19 1996-11-12 Earmark, Inc. Microphone assembly for adhesive attachment to a vibratory surface
US5605145A (en) * 1995-07-18 1997-02-25 Puritan-Bennett Corporation Microphone attenuation device for use in oxygen breathing masks
US5895537A (en) * 1997-10-09 1999-04-20 Campbell; Richard G. Sonic welded gas mask and process
US6668822B2 (en) * 1998-01-14 2003-12-30 John M. Monnich Snorkel with improved purging system
US6318363B1 (en) * 1998-01-14 2001-11-20 John M. Monnich Hydrodynamic and ergonomic snorkel
US7139701B2 (en) 2004-06-30 2006-11-21 Motorola, Inc. Method for detecting and attenuating inhalation noise in a communication system
US7155388B2 (en) 2004-06-30 2006-12-26 Motorola, Inc. Method and apparatus for characterizing inhalation noise and calculating parameters based on the characterization
US7254535B2 (en) * 2004-06-30 2007-08-07 Motorola, Inc. Method and apparatus for equalizing a speech signal generated within a pressurized air delivery system
US7827987B2 (en) * 2005-06-17 2010-11-09 Nellcor Puritan Bennett Llc Ball joint for providing flexibility to a gas delivery pathway
US7849855B2 (en) * 2005-06-17 2010-12-14 Nellcor Puritan Bennett Llc Gas exhaust system for a gas delivery mask
US7900630B2 (en) * 2005-06-17 2011-03-08 Nellcor Puritan Bennett Llc Gas delivery mask with flexible bellows
US7600514B2 (en) * 2005-06-17 2009-10-13 Nellcor Puritan Bennett Llc System and method for securing a gas delivery mask onto a subject's head
US20070283952A1 (en) * 2006-06-13 2007-12-13 Mark Wilbur Pressure sensing in masks
US20080053450A1 (en) * 2006-08-31 2008-03-06 Nellcor Puritan Bennett Incorporated Patient interface assembly for a breathing assistance system
US10046133B2 (en) 2009-04-02 2018-08-14 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation for providing ventilation support
EP2617643A1 (en) * 2012-01-18 2013-07-24 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Dive tool
JP5592908B2 (ja) * 2012-02-23 2014-09-17 興研株式会社 呼吸用保護具
KR20150098606A (ko) 2012-09-24 2015-08-28 존 해밀턴 통신 및 음성 강화 시스템
US9943712B2 (en) 2012-09-24 2018-04-17 Dolores Speech Products Llc Communication and speech enhancement system
US9289573B2 (en) 2012-12-28 2016-03-22 Covidien Lp Ventilator pressure oscillation filter
US20140261405A1 (en) * 2013-03-12 2014-09-18 Marco Tekelenburg Facepiece with noise reduction for communication
WO2018200535A1 (en) 2017-04-24 2018-11-01 Ataia Inc. Systems and methods for communicating through a hard plastic mask
US11284201B2 (en) 2017-04-24 2022-03-22 Ataia Inc. Systems and methods for communicating through a hard plastic mask
USD877886S1 (en) 2018-04-24 2020-03-10 Ataia Inc. Communication device for hard plastic masks
US20200359137A1 (en) 2017-04-24 2020-11-12 Ataia Inc. Systems and methods for communicating through a hard plastic mask
US10792449B2 (en) 2017-10-03 2020-10-06 Breathe Technologies, Inc. Patient interface with integrated jet pump
USD954269S1 (en) 2018-04-24 2022-06-07 Ataia, Inc. Communication device for hard plastic masks

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123680A (en) * 1964-03-03 Mouthpiece for submarine use
FR362658A (fr) * 1906-01-24 1906-07-04 Walter Dresser Casque pour scaphandriers
US1770821A (en) * 1927-10-29 1930-07-15 Troisi Fiorentino Telephonic apparatus for deep-sea diving
DE701689C (de) * 1938-05-25 1941-01-22 Hagenuk Hanseatische Appbau Ge Fernsprecheinrichtung an Gasschutzmasken
DE1101966B (de) * 1957-08-23 1961-03-09 Normalair Ltd Sauerstoffatemschutzgeraet mit einer lungengesteuerten Sauerstoffzufuehrungsvorrichtung
US3415245A (en) * 1965-03-08 1968-12-10 Y2 Associates Noise-suppression diving apparatus
GB1322434A (en) * 1970-08-17 1973-07-04 Suwa Seikosha Kk Switchboards
US4154981A (en) * 1977-12-16 1979-05-15 The United States Of America As Represented By The Secretary Of The Navy Telephone system for diver communication
US4183422A (en) * 1978-01-12 1980-01-15 Williams David W Underwater communications device
US4527658A (en) * 1984-07-31 1985-07-09 Payne Philip W Bubble silencer for an underwater voice communicator
US4527657A (en) * 1984-07-31 1985-07-09 Payne Philip W Tapered tube impedance matching underwater voice communicator with bubble silencer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101508333B (zh) * 2009-03-13 2011-01-19 武汉海王机电工程技术公司 机械式自动对接释放装置

Also Published As

Publication number Publication date
DE3760135D1 (en) 1989-06-08
NO865081D0 (no) 1986-12-16
FI865232L (fi) 1987-09-20
NO865081L (no) 1987-09-21
FI865232A7 (fi) 1987-09-20
US4799263A (en) 1989-01-17
DE3609097C2 (enExample) 1989-09-21
DK140087D0 (da) 1987-03-18
EP0238937A1 (de) 1987-09-30
DK140087A (da) 1987-09-20
DE3609097A1 (de) 1987-09-24
FI865232A0 (fi) 1986-12-19

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