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DE1972590U - VALVE FOR REVIVAL APPARATUS. - Google Patents

VALVE FOR REVIVAL APPARATUS.

Info

Publication number
DE1972590U
DE1972590U DEL38841U DEL0038841U DE1972590U DE 1972590 U DE1972590 U DE 1972590U DE L38841 U DEL38841 U DE L38841U DE L0038841 U DEL0038841 U DE L0038841U DE 1972590 U DE1972590 U DE 1972590U
Authority
DE
Germany
Prior art keywords
valve
membrane
air
shoulder
patient
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
DEL38841U
Other languages
German (de)
Inventor
Asmund S Laerdal
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE1972590U publication Critical patent/DE1972590U/en
Expired 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. ventilators; 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)
  • Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Medicine (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Description

P.Ä.5"p15?*-5.10.6?P.Ä.5 "p15? * - 5.10.6?

85 NÜRNBERG Keßlerplatz 185 NUREMBERG Keßlerplatz 1

Telefon 09 H/55 8176
Telegramme: BurgpatentTelephone 09 H / 55 8176
Telegrams: Castle patent

3. Oktober 1967
6596 he3rd October 1967
6596 he

L 38 841/3Ok GbmL 38 841 / 3Ok Gbm

Asmund S. Laerdal, Stavanger/lorwegenAsmund S. Laerdal, Stavanger / lorway

g ds
Diag ds
slide

a. Sis kcnnsn jsdsisair ohne Mcs^wsfe *M»mMfchm Jniarssses geböhrenirgä ^agsetoi ^ere'sn. Auf ÄnUog vjesc-en hienoft euch F^opien oder fiins-B93Ö8JV8 as «fen öbäfcfien (tetan qsijeert 0gu!sstea. Sis kcnnsn jsdsisair without Mcs ^ wsfe * M »mMfchm Jniarssses geböhrenirgä ^ agsetoi ^ ere'sn. On ÄnUog vjesc-en you can often find F ^ opien or fiins-B93Ö8JV8 as «fen öbäfcfien (tetan qsijeert 0gu! sste

Neue BeschreibungNew description

Ventil für WiederbelebungaapparateResuscitation apparatus valve

Die Erfindung bezieht sich auf ein. Ventil für Wiederbelebungsapparate, dessen Ventilkörper eine zentrale Öffnung aufweist,
die zur Zuführung von Luft bzw. Sauerstoff zur Lunge des Patienten dient und auf der Ausströmseite durch eine Membran geschlossen ist, und bei dem neben der Membran, mindestens eine
seitliche Öffnung zur Abführung der vom Patienten ausgeatmeten Luft und an der Membran ein in etwa keilförmiger Ansatz vorgesehen ist, dessen am äusseren Ende angeordnete schmale Kante mit einem normalerweise geschlossenen Spalt versehen ist, der beim Ausströmen von Luft bzw. Sauerstoff geöffnet wird. Ein bekanntes Ventil dieser Art hat den Nachteil, dass bei zu starker Obstruktion der Atmungswege des Patienten die Frischluft bzw. der Sauerstoff nicht in die Lunge des Patienten gelangt, sondern
aus der seitlichen Öffnung ausströmt, die zum Abführen der vom Patienten ausgeatmeten Luft dient. Der den Wiederbelebungsapparat Bedienende glaubt nun irrtümlich, dass dem Patienten laufendThe invention relates to a. Resuscitator valve with a valve body with a central opening
which is used to supply air or oxygen to the patient's lungs and is closed on the outflow side by a membrane, and next to the membrane, at least one
Lateral opening for discharging the air exhaled by the patient and an approximately wedge-shaped extension is provided on the membrane, the narrow edge of which is provided at the outer end with a normally closed gap which is opened when air or oxygen flows out. A known valve of this type has the disadvantage that if the patient's airways are obstructed too much, the fresh air or oxygen does not get into the patient's lungs, but instead
flows out of the side opening, which is used to evacuate the air exhaled by the patient. The person operating the resuscitation apparatus now mistakenly believes that the patient is continuously

frischluft bzw. Sauerstoff zugeführt wird, die bzw. der jedoch durch die seitliche Öffnung nutzlos abgeführt wird.fresh air or oxygen is supplied, which however is uselessly discharged through the side opening.

Der Erfindung liegt die Aufgabe zugrunde, die bekannten Ventile der oben bezeichneten Art zu verbessern und sie so auszubilden, dass bei starker Obstruktion der Atmungsorgane die Frischluft bzw. der Sauerstoff nicht nutzlos seitlich abströmen und trotzdem bei plötzlich einsetzender Atmung des Patienten die verbrauchte ausgeatmete luft seitlich abgeführt werden kann. Die lösung dieser Aufgabe wird gemäss der Erfindung dadurch erreicht, dass der Ventilkörper neben dem etwa keilförmigen Membranansatz eine mit mehreren Öffnungen zum Ausströmen der vom Patienten ausgeatmeten luft versehene umlaufende Schulter aufweist und die Membran eine sich vom etwa keilförmigen Ansatz nach aussen erstreckende entsprechende umlaufende Schulter besitzt, die durch den Druck der Frischluft bzw. des Sauerstoffes gegen die Ventilkörperschulter gedruckt wird und ihre Öffnung schliesst. Dadurch ist ein Ausströmen von Frischluft bzw. Sauerstoff ausgeschlossen. Ist z.B. das Ventil in einen elastisch zusammendrückbaren Beutel eingebaut, in den abwechselnd Frischluft bzw. Sauerstoff eingesaugt und anschliessend aus ihm diese Frischluft bzw. dieser Sauerstoff durch das Ventil herausgepresst wird, dann kann im Falle zu starker Obstruktion der Atmungswege des Patienten der Beutel nicht zusammengepresst werden, weil Frischluft bzw. Sauerstoff nicht entweichen kann. Der pralle, nicht zusammendrückbare Beutel ist also ein sicheres Zeichen dafür, dass infolge einer starken Obstruktion der AtmungsorganeThe invention is based on the object of improving the known valves of the type referred to above and of designing them so that with severe obstruction of the respiratory organs the Fresh air or the oxygen does not flow to the side without useless and nevertheless when the patient starts breathing suddenly the used exhaled air can be discharged to the side. This object is achieved according to the invention achieves that the valve body, in addition to the approximately wedge-shaped membrane extension, has one with several openings for outflow the circumferential shoulder provided with the air exhaled by the patient and the membrane has a corresponding circumferential shoulder extending outward from the approximately wedge-shaped extension has, which is pressed by the pressure of the fresh air or the oxygen against the valve body shoulder and their Opening closes. This prevents fresh air or oxygen from flowing out. For example, if the valve is elastic Built-in compressible bag, in which fresh air alternates or oxygen is sucked in and then this fresh air or this oxygen is pressed out of it through the valve If the patient's airways are obstructed too much, the bag cannot be compressed because Fresh air or oxygen cannot escape. The plump, non-compressible bag is a sure sign that that as a result of severe obstruction of the respiratory organs

— 2 —- 2 -

Frischluft bzw. Sauerstoff nicht in die lunge des Patienten gelangt. Wenn jedoch plötzlich die Atmung des Patienten, einsetzt und der Patient verbrauchte Luft ausatmet, dann wird durch den atarken. Druck der ausgeatmeten Luft einerseits der Spalt im keilförmigen Membranansatz geschlossen, so dass die verbrauchte Luft nicht in den Beutel gelangen kann, und andererseits die Membranschalter von der Ventilkörperschulter abgehoben und ihre Öffnung freigegeben, so dass die verbrauchte Luft durch diese Öffnungen abströmen kann.Fresh air or oxygen cannot get into the patient's lungs. However, if the patient suddenly starts breathing and the patient exhales stale air, then the atarken. Pressure of the exhaled air on the one hand the gap in the wedge-shaped Membrane attachment closed so that the stale air cannot get into the bag, and on the other hand the membrane switch lifted off the valve body shoulder and released its opening, allowing the stale air through these openings can flow away.

Die innere Kante der Ventilkörperschulter kann als Ventilsitz ausgebildet sein, so dass an ihr der Ventilraum vollkommen dicht nach aussen hin geschlossen werden kann. Dies wird dann noch erleichtert, wenn die innere Kante der Ventilkörperschulter stegartig in axialer Richtung vorstehend ausgebildet ist. Dadurch ist nämlich die Möglichkeit gegeben, dass sich die Membran mit ihrer Schulter um die stegartige innere Kante der Ventilkörperschulter herumlegt, wodurch ein äusserst dichter Abschluss erzielt ist. Der von diesem Ventilsitz umgrenzte Querschnitt ist wesentlich kleiner als die Membranfläche, die dem Druck der Frischluft bzw. des Sauerstoffes ausgesetzt ist. Dies erklärt, weshalb es bei einer Obstruktion der Atmungswege für die dem Patienten zuzuführende Frischluft nicht möglich ist, über die Ventilöffnungen nach aussen zu entweichen.The inner edge of the valve body shoulder can be designed as a valve seat so that the valve chamber is completely sealed against it can be closed to the outside. This is then made even easier when the inner edge of the valve body shoulder is designed to project like a web in the axial direction. Through this there is the possibility that the membrane with its shoulder around the web-like inner edge of the valve body shoulder laying around, whereby an extremely tight seal is achieved. The cross section bounded by this valve seat is much smaller than the membrane area, which is subject to the pressure of the Is exposed to fresh air or oxygen. This explains why there is an obstruction in the respiratory tract for the dem Fresh air to be supplied to the patient is not possible to escape to the outside through the valve openings.

Ein Ausführungsbeispiel dber Erfindung ist mit den erfindungswesentlichen Merkmalen in den Figuren dargestellt» Bs zeigenAn embodiment of the invention is essential to the invention Features shown in the figures show »Bs

_ 1Z __ 1 Z _

Patentanwalt Dk. D. Louis JPatent attorney Dk. D. Louis J.

85 NÜRNBERG Kefilerplatz 185 NUREMBERG Kefilerplatz 1

Telefon 0911/558176 Telegramme: BurgpatentTelephone 0911/558176 Telegrams: Castle patent

Aktenzeichen: L 38 841/30k G-bm
Anmelder ι Asmund S. LaerdalFile number: L 38 841 / 30k G-bm
Applicant ι Asmund S. Laerdal

Neue Beschreibungsseite 4New description page 4

Figur 1 einen Axialschnitt durch ein Ventil gemäss der Erfindung in Ruhestellung,Figure 1 is an axial section through a valve according to the invention in rest position,

Figur 2 einen Schnitt nach der linie II-II der Figur 1FIG. 2 shows a section along the line II-II in FIG. 1

Figur 5 den Axialschnitt nach Figur 1, wobei Frischluft "bzw. Sauerstoff ausgeblasen wird undFIG. 5 shows the axial section according to FIG. 1, with fresh air "resp. Oxygen is blown out and

Figur 4 den Axialschnitt nach Figur 1, wobei ausgeatmete verbrauchte Luft abströmt.FIG. 4 shows the axial section according to FIG. 1, with exhaled consumed Air flows out.

Das dargestellte Ventil besitzt einen Yentilkörper, der aus zwei Teilen 1 und 2 besteht, die bei 3 miteinander versehraubt sind. Beide Seile 1 und 2 besitzen Flansche 4 und 5» die einen Ringspalt 6 freilassen, in dem der Rand eines mit einer entsprechenden Öffnung versehenen elastischen Beutels eines Wiederbelebungsapparates luftdicht festgeklemmt sein kann, bei dessen Zusammenpressen die in ihm enthaltene luft bzw. der in ihm enthaltene Sauerstoff durch das Ventil hindurch der Lunge des Patienten zugeführt wird. Die beiden Tentilkörperteile 1 und 2 können aus einem durchsichtigen thermoplastischen Kunststoff bestehen. Der Teil 1 weist Öffnungen 7 auf. Der Teil 2 besitzt einen zylinderförmigen Ansatz 8, der mit dem Tubus einer Atmungsmaske dicht- verbunden wird,- und eine Ringsehulter 9, in den Öffnungen 10 vorgesehen sind. Diese werden durch eine lose auf der Aussenseite der Ringschulter 9 angeordnete biegeelastische Scheibe, z.B. aus Gummi, abgedeckt. Der innere Rand 11 der Ringschulter 9 steht stegartig vor und dient als Ventilsitz.The valve shown has a Yentilkörper, which consists of consists of two parts 1 and 2, which are screwed together at 3. Both ropes 1 and 2 have flanges 4 and 5 »one Leave the annular gap 6, in which the edge of an elastic bag provided with a corresponding opening of a resuscitation apparatus can be clamped airtight at the compression of which the air contained in it or the oxygen contained in it through the valve of the lungs of the patient is supplied. The two parts of the valve body 1 and 2 can be made of a transparent thermoplastic material exist. Part 1 has openings 7. The part 2 has a cylindrical extension 8, which is connected to the tube a breathing mask is tightly connected, - and a ring shoulder 9, in the openings 10 are provided. These are arranged loosely on the outside of the ring shoulder 9 Flexibly elastic disc, e.g. made of rubber, covered. The inner edge 11 of the ring shoulder 9 protrudes like a web and serves as a Valve seat.

Im Yentilraum 12 ist eine Membran 13 aus einem elastischen Kunststoff angeordnet und an ihrem äusseren Umfang "bei 14 dicht "befestigt. Sie weist eine Ringschulter 15 auf, an die sich ein keilförmiger Ansatz 16 anschliesst, dessen vordere Schmalkante mit einem normalerweise geschlossenen. Spalt 17 versehen ist. In der in den Figuren 1 und 2 dargestellten. Ruhestellung liegt die Membran. 13 mit ihrer Ringschulter 15 am Ringsteg 11 an.In the valve space 12, a membrane 13 is made of an elastic one Plastic arranged and on its outer periphery "at 14 tight ". It has an annular shoulder 15 to which a wedge-shaped extension 16 connects, the front narrow edge of which with a normally closed. Gap 17 is provided. In the one shown in Figures 1 and 2. Rest position is the membrane. 13 with its ring shoulder 15 on the ring web 11.

Wird der mit dem dargestellten Tentil versehene Beutel zusammengedrückt, dann strömt die in ihm enthaltene luft bzw. der Sauerstoff in Richtung der Pfeile 18 durch die Öffnungen 7 und durch den sich hierbei selbsttätig öffnenden Spalt 17 sowie durch die nicht dargestellte Atmungsmaske in die Lunge des Patienten. Durch den Druck der Luft bzw. des Sauerstoffes wird nicht nur der Spalt 17 geöffnet, sondern, auch die Ringschulter 15 der Membran 13 gegen den. Ringsteg 11 und die Ringschulter 9 gepresst, so dass dadurch der Innenraum sowohl der Membran. 13 als auch des zylindrischen Ansatzes 8 nach aussen hin geschlossen ist und damit die Öffnungen. 10 abgedeckt sind. Wenn, bei starker Obstruktion der Atmungswege des Patienten keine Luft bzw. kein Sauerstoff in die Lunge des Patienten strömt, bleibt der Beutel im gefüllten prallen Zustande. Der den Wieder_l> elebungsapparat Bedienende ersieht daraus sofort, dass die Luft bzw. der Sauerstoff nicht in. die Lunge des Patienten, gelangt bzw. nicht von der Lunge eingeatmet wird.If the bag provided with the valve shown is compressed, then the air or oxygen contained in it flows in the direction of the arrows 18 through the openings 7 and through the automatically opening gap 17 and through the breathing mask, not shown, into the lungs of the Patient. The pressure of the air or the oxygen not only opens the gap 17, but also the ring shoulder 15 of the membrane 13 against the. Ring bridge 11 and the ring shoulder 9 pressed, so that thereby the interior of both the membrane. 13 and the cylindrical extension 8 to the outside is closed and thus the openings. 10 are covered. When, if the patient's airways are severely obstructed, no air or no oxygen flows into the patient's lungs, the bag remains in the full, plump state. The re_l> The breathing apparatus operator can see immediately that the air or oxygen is not getting into the patient's lungs or is not inhaled by the lungs.

5 -5 -

553*12. iflö7553 * 12. iflö7

Patentanwalt Dr. D. LouisPatent attorney Dr. D. Louis

85 NÜRNBERG Keßlerplatz 185 NUREMBERG Keßlerplatz 1

Telefon 0911/558176 Telegramme: BurgpatentTelephone 0911/558176 Telegrams: Castle patent

Aktenzeichen: L 38 841/30k Gbm
Anmelder : Asmund S. LaerdalFile number: L 38 841 / 30k Gbm
Applicant: Asmund S. Laerdal

ETeue Beschreilmngsseite 6New description page 6

Setzt jedoch beim Patienten die Atmung ein, dann wird durch die in Richtung der Pfeile 19 gemäss Figur 4 ausgeatmete verbrauchte Luft der Spalt 17 geschlossen und die Membran nach unten in die in Figur 4 dargestellte Lage gedruckt, wobei ihre Ringschulter 15 von dem Ringsteg 11 und der Ringschulter 9 abgehoben ist und die Öffnungen 10 in ihr freigegeben sind, so dass die verbrauchte Luft durch diese Öffnungen 10 unter Anheben der Scheibe abströmen kann. Weil der Spalt 17 geschlossen ist, kann die verbrauchte Luft nicht in den Beutel einströmen.However, if the patient starts breathing, then it gets through the stale air exhaled in the direction of the arrows 19 according to FIG. 4, the gap 17 is closed and the membrane is closed printed down in the position shown in Figure 4, with its ring shoulder 15 of the ring web 11 and the Ring shoulder 9 is lifted off and the openings 10 are released in it, so that the stale air passes through them Openings 10 can flow out while lifting the disc. Because the gap 17 is closed, the stale air can do not flow into the bag.

Entsteht einmal durch unvorhergesehene Umstände auf der Druckseite des Yentils ein unterdruck, dann ist eine Einatmung von verunreinigter oder aus anderen Gründen schädlicher Aussenluft durch die Öffnungen 10 nicht möglich, nachdem diese durch die Scheibe abgedeckt sind.If, due to unforeseen circumstances, a negative pressure occurs on the pressure side of the Y-valve, it is inhalation of contaminated or for other reasons harmful outside air through the openings 10 is not possible after these are covered by the disc.

Claims (4)

1L »Ϊ5 'mi Schutzansprüche1L »Ϊ5 'with protection claims 1. Ventil für Wiederbelebungsapparate, dessen Ventilkörper eine zentrale Öffnung aufweist, die zur Zuführung von Luft bzw. Sauerstoff zur lunge des Patienten dient und die auf der Ausströmseite durch eine Membran geschlossen ist und bei dem neben der Membran mindestens eine seitliche öffnung zum Ausströmen der vom Patienten ausgeatmeten luft und an der Membran ein etwa keilförmiger Ansatz vorgesehen ist, dessen am ausseren Ende angeordnete schmale Kante mit einem normalerweise geschlossenen Spalt versehen ist, der beim Ausströmen von luft bzw. Sauerstoff geöffnet wird, dadurch gekennzeichnet, dass der Ventilkörper (1, 2) neben dem etwa keilförmigen Membranansatz (16) eine mit mehreren Öffnungen (10) zum Ausströmen der vom Patienten ausgeatmeten Luft versehene, umlaufende Schulter (9) aufweist und die Membran (13) eine sich von etwa keilförmigen Ansatz (16) nach aussen erstreckende, entsprechend umlaufende Schulter (15) besitzt, die durch den Druck der Frischluft bzw. des Sauerstoffes gegen die Ventilkörpers chult er (9) gedruckt wird und ihre Öffnungen. (10) schliesst.1. Valve for resuscitation apparatus, the valve body of which has a central opening which is used for the supply of air or Oxygen is used for the patient's lungs and which is closed on the outflow side by a membrane and in which next to the membrane at least one side opening for outflow the air exhaled by the patient and an approximately wedge-shaped extension is provided on the membrane, its on the outside Ended narrow edge with a normally closed one Gap is provided which is opened when air or oxygen flows out, characterized in that the valve body (1, 2) in addition to the approximately wedge-shaped membrane extension (16) one with several openings (10) for outflow the air exhaled by the patient has circumferential shoulder (9) and the membrane (13) extends from approximately wedge-shaped projection (16) extending outwards, correspondingly encircling shoulder (15), which by the pressure of the fresh air or the oxygen against the valve body chult er (9) is printed and their openings. (10) closes. 2. Ventil nach Anspruch 1, dadurch gekennzeichnet, dass die innere Kante (11) der Ventilkörperschulter (9) als Ventilsitz ausgebildet ist.2. Valve according to claim 1, characterized in that the inner edge (11) of the valve body shoulder (9) as a valve seat is trained. — 7 —- 7 - RA. 5Θ3 553*12.10.67RA. 5Θ3 553 * 10/12/67 Patentanwalt Dr. D. LouisPatent attorney Dr. D. Louis 85 NÜRNBERG Kefilerplatz 185 NUREMBERG Kefilerplatz 1 Telefon 0911/558176 Aktenzeichen: L 38 841/30k Gbm Telegramme: BurgpatentTelephone 0911/558176 File number: L 38 841 / 30k Gbm Telegrams: Castle patent Anmelder : Asmund S. LaerdalApplicant: Asmund S. Laerdal neues Blatt 8 der Schutzansprüche 3 und 4new sheet 8 of claims 3 and 4 3. Ventil nach Anspruch 2, dadurch gekennzeichnet, dass die innere Kante (11) der Ventilkörperschulter (9) stegartig in axialer Richtung vorstehend ausgebildet ist.3. Valve according to claim 2, characterized in that the inner edge (11) of the valve body shoulder (9) is like a web is formed protruding in the axial direction. 4. Ventil nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Öffnungen (10) durch eine auf der Aussenseite der Schulter (9) lose angeordnete biegeelastische Scheibe abgedeckt sind.4. Valve according to claims 1 to 3, characterized in that the openings (10) through one on the outside of the Shoulder (9) loosely arranged flexible disk are covered.
DEL38841U 1964-06-15 1965-01-22 VALVE FOR REVIVAL APPARATUS. Expired DE1972590U (en)

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DE1965L0049777 Pending DE1616422B1 (en) 1964-06-15 1965-01-22 Valve for resuscitation apparatus

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US (1) US3556122A (en)
DE (2) DE1972590U (en)
FR (1) FR1436527A (en)
GB (1) GB1034759A (en)
NL (1) NL146391B (en)

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NL146391B (en) 1975-07-15
NL6506876A (en) 1965-12-16
US3556122A (en) 1971-01-19
FR1436527A (en) 1966-04-22
DE1616422B1 (en) 1971-11-18
GB1034759A (en) 1966-07-06

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