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DE1616422B1 - Valve for resuscitation apparatus - Google Patents

Valve for resuscitation apparatus

Info

Publication number
DE1616422B1
DE1616422B1 DE1965L0049777 DEL0049777A DE1616422B1 DE 1616422 B1 DE1616422 B1 DE 1616422B1 DE 1965L0049777 DE1965L0049777 DE 1965L0049777 DE L0049777 A DEL0049777 A DE L0049777A DE 1616422 B1 DE1616422 B1 DE 1616422B1
Authority
DE
Germany
Prior art keywords
membrane
opening
edge
valve
leading
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.)
Pending
Application number
DE1965L0049777
Other languages
German (de)
Inventor
Auf Nichtnennung Antrag
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.)
LAERDAL ASMUND S
Original Assignee
LAERDAL ASMUND S
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 LAERDAL ASMUND S filed Critical LAERDAL ASMUND S
Publication of DE1616422B1 publication Critical patent/DE1616422B1/en
Pending legal-status Critical Current

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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/1401—Check valves with flexible valve members having a plurality of independent valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7842—Diverse types
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/788—Having expansible port
    • Y10T137/7882—Having exit lip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8359—Inspection means

Landscapes

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

Description

1 21 2

Die Erfindung betrifft ein Ventil für Wieder- bran nicht beeinträchtigt, da zusätzlich zu dem RandThe invention relates to a valve for reburning not impaired because it is in addition to the rim

belebüngsapparate mit einem Gehäuse, dessen Innen- der zweiten Öffnung auch die Fläche der RingschulterBelebüngsapparate with a housing, the inside of which the second opening also the surface of the ring shoulder

raum durch eine an ihrem Rand eingespannte Mem- und gegebenenfalls die Ränder der ins Freie führen-space by a meme clamped at its edge and, if necessary, the edges of the

bran aus biegsamem Material unterteilt ist und das den Öffnungen selbst zur Abdichtung herangezogen auf einer Seite der Membran eine erste Öffnung und 5 werden.bran is divided from flexible material and used the openings themselves for sealing a first opening and 5 become on one side of the membrane.

auf der anderen Seite der Membran eine zweite zum Die Dichtfunktion des Randes der zweiten Öffnungon the other side of the membrane a second one for the sealing function of the edge of the second opening

zu Beatmenden führende Öffnung und seitlich dieser kann dadurch erhöht werden, daß dieser stegartigOpening leading to the respirator and laterally this opening can be increased in that it is web-like

Öffnung mehrere ins Freie führende Öffnungen auf- etwas in Richtung auf die Membran vorgezogen ist.Opening several openings leading to the outside - something is preferred in the direction of the membrane.

weist, wobei der Rand der zweiten Öffnung einen Eine weitere zweckmäßige und vorteilhafte AusVentilsitz für die Membran bildet und die Membran io gestaltung des erfindungsgemäßen Ventils besteht has, wherein the edge of the second opening forms a further useful and advantageous AusVentilsitz for the membrane and the membrane is io design of the valve according to the invention

einen in Ruhestellung geschlossenen Spalt aufweist. darin, daß die Membran einen in die zweite Öffnunghas a gap that is closed in the rest position. in that the membrane enters the second opening

Ventile der vorstehend genannten Art dienen dazu, ragenden keilförmigen Ansatz aufweist, der an seinerValves of the type mentioned above are used to have protruding wedge-shaped approach on his

der Lunge von wiederzubelebenden Patienten Frisch- Keilkante den in Ruhestellung geschlossenen Spaltthe lungs of patients to be resuscitated

luft oder Sauerstoff zuzuführen, und zu gewährleisten, bildet.to supply air or oxygen, and to ensure that forms.

daß von dem Patienten wieder ausgeatmete Luft oder 15 Nachfolgend wird ein Ausführungsbeispiel einesthat air exhaled by the patient or 15 The following is an embodiment of a

Sauerstoff ins Freie abströmen kann. Dabei legt sich erfindungsgemäßen Ventils an Hand der ZeichnungenOxygen can escape into the open. The valve according to the invention is based on the drawings

bei der Zuführung von Frischluft oder Sauerstoff die näher erläutert. Es zeigtfor the supply of fresh air or oxygen, which is explained in more detail. It shows

Membran an den Rand der zweiten Öffnung an und F i g. 1 einen Axialschnitt durch ein erfindungsverhindert somit ein Hindurchtreten der Frischluft gemäßes Ventil in Ruhestellung der Membran,
oder des Sauerstoffes zu den ins Freie führenden Öff- 20 F i g. 2 einen Schnitt längs der Linie ΙΙ-Π in F i g. 1, nungen. Damit ist gewährleistet, daß bei starker Ob- Fig. 3 den Axialschnitt nach Fig. 1, wobei struktion der Atemwege des zu Beatmenden nicht Frischluft oder Sauerstoff eingeblasen wird, und
Frischluft oder Sauerstoff ungenutzt ins Freie ab- F i g. 4 den Axialschnitt nach F i g. 1, wobei ausströmt und der falsche Eindruck erweckt wird, der geatmete verbrauchte Luft abströmt.
Patient werde beatmet. Um nun eine sichere Abdich- 25 Das dargestellte Ventil besitzt ein Ventilgehäuse, rung gegenüber den ins Freie führenden Öffnungen das aus zwei Gehäuseteilen 1 und 2 besteht, die bei 3 zu gewährleisten, besitzen die bekannten Ventile die- miteinander verschraubt sind. Beide Gehäuseteile 1 ser Art einen ins Gehäuseinnere ragenden Rohransatz, und 2 besitzen Flansche 4 und 5, die einen Ringspalt 6 dessen Stirnrand als Ventilsitz für die Membran dient. frei lassen, in dem der Rand eines mit einer ent-Hierdurch wird jedoch insbesondere im Falle einer 30 sprechenden Öffnung versehenen elastischen Beutels Obstruktion der Atemwege des Patienten die aus eines Wiederbelebungsapparates luftdicht festnachgiebigem Material bestehende Membran erheb- geklemmt sein kann, durch dessen Zusammenpressen lieh beansprucht, da sie sich gegenüber dem von der die in ihm enthaltene Luft oder der in ihm enthaltene ersten Öffnung her wirkenden Druck nur auf dem Sauerstoff durch das Ventil hindurch der Lunge eines Dichtrand abstützen kann. Diese Beanspruchung ver- 35 Patienten zugeführt wird. Die beiden Gehäuseteile 1 ringert einerseits die Lebensdauer der Membran und und 2 können aus einem durchsichtigen, thermobelastet andererseits den in der Membran vorgesehe- plastischen Kunststoff bestehen,
nen Spalt, so daß bei häufigerem Gebrauch dessen Der Gehäuseteil 1 weist Öffnungen 7 auf. Der Gesicheres Schließen in der unbelasteten Ruhestellung häuseteil 2 besitzt einen rohrförmigen Ansatz 8, der und bei Ausströmen der Luft aus der Lunge des 40 mit dem Tubus einer Atmungsmaske dicht verbunden Patienten nicht mehr gewährleistet ist. Zudem baut wird, und eine Ringschulter 9, in der ins Freie fühdurch den Rohransatz das Ventilgehäuse länger, was rende Öffnungen 10 vorgesehen sind. Der innere sich im Hinblick auf den Platzbedarf eines mit einem Rand 11 der Ringschulter 9 ist stegartig vorgezogen solchen Ventil ausgestatteten Wiederbelebungs- und dient als Ventilsitz.Membrane to the edge of the second opening and F i g. 1 shows an axial section through a valve in accordance with the invention, thus preventing the fresh air from passing through when the membrane is in the rest position,
or of the oxygen to the openings leading into the open air. 2 shows a section along the line ΙΙ-Π in FIG. 1, openings. This ensures that with strong ob- Fig. 3 the axial section according to Fig. 1, whereby struktion of the respiratory tract of the person to be ventilated is not blown fresh air or oxygen, and
Fresh air or oxygen unused into the open air. F i g. 4 shows the axial section according to FIG. 1, whereby exhaling and giving the false impression that the breathed stale air is flowing out.
The patient is being ventilated. In order to ensure a safe sealing, the valve shown has a valve housing, opposite the openings leading into the open air, which consists of two housing parts 1 and 2, which at 3 have the known valves which are screwed together. Both housing parts 1 of this type have a tubular extension protruding into the interior of the housing, and 2 have flanges 4 and 5, which have an annular gap 6 whose end edge serves as a valve seat for the membrane. In this way, however, especially in the case of a speaking opening, obstructions of the patient's airways, the membrane made of a resuscitation apparatus, airtight, resilient material, can be clamped, stressed by compressing it , since it can only support itself against the pressure exerted by the air contained in it or the first opening contained in it on the oxygen through the valve of the lungs of a sealing edge. This stress is applied to 35 patients. The two housing parts 1, on the one hand, reduce the service life of the membrane and and 2 can consist of a transparent, thermally loaded, on the other hand, the plastic plastic provided in the membrane,
NEN gap, so that the housing part 1 has openings 7 with frequent use. The secure closing in the unloaded rest position housing part 2 has a tubular extension 8, which is no longer guaranteed when the air flows out of the lungs of the patient, which is tightly connected to the tube of a breathing mask. In addition, is built, and an annular shoulder 9, in which the valve housing leads to the outside through the pipe socket longer, which generating openings 10 are provided. The inner resuscitation valve equipped with an edge 11 of the annular shoulder 9 is preferably web-like in front of such a valve with regard to the space requirement and serves as a valve seat.

gerätes, insbesondere für ambulante Zwecke, nach- 45 Im Ventilraum 12 ist eine Membran 13 aus einemdevice, especially for outpatient purposes, after 45 In the valve chamber 12, a membrane 13 is made of a

teilig bemerkbar macht. elastischen Kunststoff angeordnet und an ihrempartially noticeable. elastic plastic arranged and attached to her

Der Erfindung liegt daher die Aufgabe zugrunde, äußeren Umfang bei 14 dicht befestigt. Sie weist eine ein Ventil der eingangs geschilderten Art so auszubil- Ringschulter 15 auf, an die sich ein keilförmiger Anden, daß die Abdichtfunktion der Membran, ins- satz 16 anschließt, dessen vordere Schmalkante mit besondere die Abdichtung gegenüber den ins Freie 50 einem normalerweise geschlossenen Spalt 17 versehen führenden Öffnungen, ohne erhöhte Beanspruchung ist. In der in den F i g. 1 und 2 dargestellten Ruheder Membran sichergestellt ist. Erfindungsgemäß wird Stellung kann die Membran 13 mit ihrer Ringschulter dies bei einer Membran der eingangs geschilderten 15 am Rand 11 der durch den rohrförmigen Ansatz 8 Gattung dadurch erreicht, daß der Rand um die führenden Öffnung anliegen.The invention is therefore based on the object of securing the outer periphery at 14 tightly. She has a a valve of the type described above so auszubil- ring shoulder 15 on which a wedge-shaped Andes, that the sealing function of the membrane, in particular 16, adjoins its front narrow edge in particular, the seal with respect to the open air 50 is provided with a normally closed gap 17 leading openings without increased stress. In the FIG. 1 and 2 shown rest Membrane is ensured. According to the invention, the diaphragm 13 can be positioned with its annular shoulder this is the case with a membrane of the 15 described above on the edge 11 of the through the tubular extension 8 Type achieved in that the edge rest around the leading opening.

zweite Öffnung sich in einer umlaufenden Ring- 55 Wird der in dem Ringspalt 6 am VentilgehäuseThe second opening is in a circumferential ring 55 that is in the annular gap 6 on the valve housing

schulter fortsetzt, in der sich die ins Freie führenden befestigte Beutel zusammengedrückt, dann strömt dieshoulder continues, in which the attached bag leading to the open air is compressed, then the flow

Öffnungen befinden und an der die Membran bei in ihm enthaltene Luft oder der Sauerstoff in Rich-Openings are located and at which the membrane in the presence of air or oxygen in the direction

von der Seite der ersten Öffnung her wirkendem rung der Pfeile 18 durch die Öffnungen 7 und durchfrom the side of the first opening acting tion of the arrows 18 through the openings 7 and through

Druck zur Anlage kommt. den sich hierbei selbsttätig öffnenden Spalt 17 sowiePressure comes to the plant. the automatically opening gap 17 and

Bei dem erfindungsgemäßen Ventil kommt somit 60 durch die nicht dargestellte Atmungsmaske in die ein ins Gehäuseinnere ragender Rohransatz in Weg- Lunge des Patienten. Durch den Druck der Luft bzw. fall, so daß die Membran sich an die die ins Freie des Sauerstoffes wird nicht nur der Spalt 17 geöffnet, führenden Öffnungen enthaltende Ringschulter des sondern auch die Ringschulter 15 der Membran 13 Gehäuses1 und an den Rand der zweiten Öffnung ab- gegen den Rand 11 und gegen die Ringschulter 9 gedichtend anlegen kann. Dadurch wird eine lokale 65 preßt (F i g. 3). Dadurch ist der Innenraum sowohl hohe Beanspruchung der Membran verhindert, da der Membran 13 als auch des" rohrförmigen Andiese sich auf der Fläche der Ringschulter abstützt. satzes 8 nach außen hin geschlossen und es sind die Andererseits wird aber die Dichtfunktion der Mem- Öffnungen 10 damit abgedeckt. Wenn bei starker Ob-In the case of the valve according to the invention, a tube attachment protruding into the interior of the housing comes through the breathing mask (not shown) into the patient's lungs. By the pressure of the air or fall, so that the membrane is attached to the into the open air not only the gap 17 is opened, leading openings containing the annular shoulder but also the annular shoulder 15 of the membrane 13 housing 1 and to the edge of the second Opening against the edge 11 and against the annular shoulder 9 can create a seal. As a result, a local 65 is pressed (FIG. 3). This prevents the inner space from being subjected to high stresses on the membrane, since the membrane 13 and the tubular part are supported on the surface of the ring shoulder covered. If with strong ob-

struktion der Atmungswege des Patienten keine Luft bzw. kein Sauerstoff in die Lunge des Patienten strömt, bleibt der angeschlossene Beutel im gefüllten prallen Zustand. Der den Wiederbelebungsapparat Bedienende ersieht daraus sofort, daß die Luft oder der Sauerstoff nicht in die Lunge des Patienten gelangt bzw. nicht eingeatmet wird.Obstruction of the patient's respiratory tract, no air or no oxygen into the patient's lungs flows, the connected bag remains in the full, plump state. The resuscitator The operator can see immediately that the air or oxygen is not getting into the patient's lungs or is not inhaled.

Setzt jedoch beim Patienten die Atmung ein, dann wird durch die in Richtung der Pfeile 19 (F i g. 4) ausgeatmete verbrauchte Luft der Spalt 17 geschlossen, und die Membran in die in F i g. 4 dargestellte Lage gedrückt, wobei ihre Ringschulter 15 von dem Rand 11 und der Ringschulter 9 abgehoben ist und die Öffnungen 10 darin freigegeben sind. Damit kann die verbrauchte Luft durch diese Öffnungen 10 abströmen und, da der Spalt 17 geschlossen ist, nicht in den Beutel gelangen.However, if the patient begins to breathe, the direction indicated by the arrows 19 (FIG. 4) exhaled stale air the gap 17 is closed, and the membrane in the in F i g. 4 shown Pressed position, its ring shoulder 15 is lifted from the edge 11 and the ring shoulder 9 and the openings 10 are exposed therein. The used air can thus flow out through these openings 10 and, since the gap 17 is closed, do not get into the bag.

Claims (4)

Patentansprüche:Patent claims: 1. Ventil für Wiederbelebungsapparate mit einem Gehäuse, dessen Innenraum durch eine an ihrem Rand eingespannte Membran aus biegsamem Material unterteilt ist und das auf einer Seite der Membran eine erste Öffnung und auf der anderen Seite der Membran eine zweite zum zu Beatmenden führende Öffnung und seitlich dieser Öffnung mehrere ins Freie führende Öffnungen aufweist, wobei der Rand der zweiten Öffnung einen Ventilsitz für die Membran bildet und die Membran einen in Ruhestellung geschlossenen Spalt aufweist, dadurch gekennzeichnet, daß der Rand um die zweite Öffnung sich in einer umlaufenden Ringschulter (9) fortsetzt, in der sich die ins Freie führenden Öffnungen (10) befinden und an der die Membran (13) bei von der Seite der ersten Öffnung (7) her wirkendem Druck zur Anlage kommt.1. Valve for resuscitation apparatus with a housing, the interior of which by a its edge clamped membrane is divided from flexible material and on a Side of the membrane a first opening and on the other side of the membrane a second to the Opening leading to the ventilator and laterally this opening several openings leading to the outside having, wherein the edge of the second opening forms a valve seat for the membrane and the membrane has a gap which is closed in the rest position, characterized in that that the edge around the second opening is in a circumferential ring shoulder (9), in which the openings (10) leading to the outside are located and on which the membrane is located (13) comes into contact with the pressure acting from the side of the first opening (7). 2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß der Rand (11) der zweiten Öffnung stegartig vorgezogen ist.2. Valve according to claim 1, characterized in that the edge (11) of the second opening is preferred like a bar. 3. Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Membran (13) einen in die zweite öffnung ragenden keilförmigen Ansatz (16) aufweist, der an seiner Keilkante den in Ruhestellung geschlossenen Spalt (17) bildet.3. Valve according to claim 1 or 2, characterized in that the membrane (13) has one in the has a second opening protruding wedge-shaped extension (16), which at its wedge edge the in the rest position closed gap (17) forms. 4. Ventil nach Anspruch 2. dadurch gekennzeichnet, daß die Membran (13) in Ruhestellung an dem Rand (11) anliegt.4. Valve according to claim 2, characterized in that the membrane (13) in the rest position rests against the edge (11). Hierzu 1 Blatt Zeichnungen copyCopy 1 sheet of drawings
DE1965L0049777 1964-06-15 1965-01-22 Valve for resuscitation apparatus Pending DE1616422B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO15364964 1964-06-15

Publications (1)

Publication Number Publication Date
DE1616422B1 true DE1616422B1 (en) 1971-11-18

Family

ID=19908980

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1965L0049777 Pending DE1616422B1 (en) 1964-06-15 1965-01-22 Valve for resuscitation apparatus
DEL38841U Expired DE1972590U (en) 1964-06-15 1965-01-22 VALVE FOR REVIVAL APPARATUS.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEL38841U Expired DE1972590U (en) 1964-06-15 1965-01-22 VALVE FOR REVIVAL APPARATUS.

Country Status (5)

Country Link
US (1) US3556122A (en)
DE (2) DE1616422B1 (en)
FR (1) FR1436527A (en)
GB (1) GB1034759A (en)
NL (1) NL146391B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915683A1 (en) * 1978-04-18 1979-10-25 Taisto Haekkinen EXHAUST VALVE FOR A BREATHING DEVICE OR ANY OTHER RESEARCH DEVICE
EP0139363A1 (en) * 1983-08-02 1985-05-02 O-Two Systems International Inc. Breathing apparatus
EP0168156A1 (en) * 1984-06-04 1986-01-15 Vernay Laboratories,Inc. Valve assembly
DE19731068A1 (en) * 1997-07-19 1999-01-21 Joerg Rittmeister Closure device for exhale valve of breathing appliances and snorkels

Families Citing this family (152)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313915B2 (en) * 1973-01-25 1978-05-13
DE2458729C3 (en) * 1974-12-12 1979-07-05 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Tire fifflventa
US4030142A (en) * 1976-03-26 1977-06-21 Intermed, Inc. Occluder for prosthetic heart valve assembly
AU522423B2 (en) * 1978-03-07 1982-06-03 Commonwealth Industrial Gases Limited, The Artificial respirator valve system
US4217921A (en) * 1978-06-16 1980-08-19 Zurn Industries, Inc. Back flow preventer valve
USRE31785E (en) * 1978-08-07 1985-01-01 Figgie International, Inc. Breathing valve assembly with diaphragm control of the exhaust ports
US4671786A (en) * 1982-09-22 1987-06-09 C. R. Bard, Inc. Overpressure safety valve
US4774941A (en) * 1983-05-04 1988-10-04 Intertech Resources Inc. Resuscitator bag
ATE27405T1 (en) * 1983-08-02 1987-06-15 Trutek Research Inc RESPIRATORY VALVE.
GB2145196B (en) * 1983-08-18 1986-04-09 Kawaei Co Ltd Rapid exhaust valve for use in blood circulation stimulator
US4535818A (en) * 1983-09-26 1985-08-20 Vernay Laboratories, Inc. Valve assembly
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Also Published As

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DE1972590U (en) 1967-11-16
NL146391B (en) 1975-07-15
NL6506876A (en) 1965-12-16
FR1436527A (en) 1966-04-22
GB1034759A (en) 1966-07-06
US3556122A (en) 1971-01-19

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E77 Valid patent as to the heymanns-index 1977