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DE1861618U - Anesthesia machine. - Google Patents

Anesthesia machine.

Info

Publication number
DE1861618U
DE1861618U DED20850U DED0020850U DE1861618U DE 1861618 U DE1861618 U DE 1861618U DE D20850 U DED20850 U DE D20850U DE D0020850 U DED0020850 U DE D0020850U DE 1861618 U DE1861618 U DE 1861618U
Authority
DE
Germany
Prior art keywords
pass
anesthesia machine
throttle
branch line
ratio
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
DED20850U
Other languages
German (de)
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.)
Draeger Werk Heinr & Bernh Draeger
Original Assignee
Draeger Werk Heinr & Bernh Draeger
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 Draeger Werk Heinr & Bernh Draeger filed Critical Draeger Werk Heinr & Bernh Draeger
Priority to DED20850U priority Critical patent/DE1861618U/en
Publication of DE1861618U publication Critical patent/DE1861618U/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18Vaporising devices for anaesthetic preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/01Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes specially adapted for anaesthetising
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/104Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/208Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/22Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide

Landscapes

  • Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Flow Control (AREA)

Description

Präge rwerk , Heinr. & Bernh. Präger, Lübeck, Moislinger Allee 53/55Embossing works, Heinr. & Bernh. Embossers, Lübeck, Moislinger Allee 53/55

Narkosegerät mit einem dem Verdampfer parallelgeschaltetenAnesthesia machine with one connected in parallel to the vaporizer

By-PassBypass

Es sind larkosegeräte bekannt, die mit einem Verdampfer ausgerüstet sind, woiiei dem Verdampfer ein By-Pass parallelgeschaltet ist. Pabei können in den By-Pass oder auch in die zum Verdampfer führende Leitung Regelorgane eingeschaltet sein, durch die das Verhältnis der Purchflußmengen zwischen dem By-Pass einerseits und dem Verdampfer andererseits geregelt wird, je nach dem gewünschten KonzentrationsTerhältnis des Harkosemittels. Piese τοη Hand einstellbare Regelung hat jedoch den Nachteil, daß sich das Mischungsverhältnis mit der Änderung der Purchflußgeschwindigkeit des durch das Gerät strömenden Gases, d.h. derThere are known larkosis devices that have a vaporizer are equipped, whereiiei the evaporator a by-pass is connected in parallel. Control organs can be placed in the by-pass or in the line leading to the evaporator be switched on, through which the ratio of the purchasing flow quantities between the by-pass on the one hand and the evaporator on the other hand it is regulated, depending on the desired concentration / ratio of the anesthetic. Piese τοη However, manually adjustable control has the disadvantage that the mixing ratio changes with the change in the flow rate of the gas flowing through the device, i.e. the

Gasgeschwindigkeit, ändert. Diese Änderung ist nachteilig, da zumal der Narkosearzt nicht ohne weiteres erkennen kann, wie das Mischungsverhältnis sich ändert. Dieser Nachteil besteht insbesondere bei Narkosegeräten, mit denen sowohl eine Narkose im geschlossenen Atmungssystem als auch im offenen Atmungssystem durchgeführt werden kann.Gas velocity changes. This change is disadvantageous because the anesthetist cannot easily see how the mixing ratio changes. This disadvantage exists in particular in anesthesia machines with which both an anesthesia in the closed respiratory system and in the open respiratory system can be performed.

Die !feuerung erstrebt, die Nachteile der bekannten Markosegeräte zu vermeiden. Die Heuerung betrifft ein Narkosegerät mit einem dem Verdampfer parallelgeschalteten By-Pass, wobei in die By-Pass- und/oder die Verdampfer-Zvreigleitung Regelventile eingeschaltet sind. Die Neuerung besteht darin, daß in der By-Pass-Zweigleitung und in der Verdampfer-Zweigleitung je eine Drossel eingeschaltet ist, bei denen das Verhältnis Drosselspaltbreite zu Drossellänge kleiner als 10 ist. Die Bauform gemäß der Neuerung hat den Vorteil, daß bei einer Veränderung des Eingangsdruckes und somit der Durchflußgeschwindigkeit sich keine Veränderung im Mischungsverhältnis ergibt. Praktisch ist die Charakteristik j& konstant. Andererseits kann mit den Widerständen bzw. Drosseln wie bisher jede gewünschte Mischung eingestellt ¥\rerden. Unter Widerstandscharakteristik -^ wird der erste Differential-Quotient des Widerstandes nach der Durchflußgeschwindigkeit verstanden. Luftwiderstände bzw. -drosseln od. dgl., deren Widerstandscharakteristik konstant ist, können aus Doppelkegelventilen mit kleinen Kegelwinkeln gebildet sein, deren Verhältnis Schlitzlreite zu Schlitzlänge in jeder benutztenThe fire strives to avoid the disadvantages of the known macroscopic devices. The hiring relates to an anesthesia machine with a by-pass connected in parallel to the vaporizer, with control valves being switched on in the by-pass and / or vaporizer connection line. The innovation is that a throttle is switched on in the by-pass branch line and in the evaporator branch line, in which the ratio of the throttle gap width to throttle length is less than 10. The design according to the innovation has the advantage that there is no change in the mixing ratio when the inlet pressure and thus the flow rate change. In practice, the characteristic j & is constant. On the other hand, any desired mixture can be set as before with the resistors or chokes. The resistance characteristic - ^ is understood to be the first differential quotient of the resistance according to the flow rate. Air resistances or throttles or the like, the resistance characteristic of which is constant, can be formed from double cone valves with small cone angles, each of which uses the ratio of slot width to slot length

-2
Stellung kleiner als etwa 10 ist.
-2
Position is less than about 10.

In der Zeichnung ist eine Ausführungsform der !Teuerung schematisch dargestellt, und zwar zeigenIn the drawing is an embodiment of the inflation shown schematically, namely show

Ί //Ί //

. 1 ein Gerät gemäß der Heuerung im Schnitt, ATdId. 2 ein Ventil im vergrößerten Maßstab.. 1 a device according to the pay in section, ATdId. 2 shows a valve on an enlarged scale.

Durch die Leitung 1 strömt das Gas, wie Luft, Luftgemische mit Zyklopropan, Lachgas od. dgl., der Verteilerkammer zu. Diese ist einmal über das Ventil 3 und die Leitung mit dem Verdampfer 9 verbunden, dessen Abgangsieitung mit der Mischkammer 7 verbunden ist. Dem Verdampfer parallelgeschaltet ist der By-Pass 6, in den ebenfalls ein Widerstand 4 eingeschaltet ist. Beide Widerstände bzw. Drosseln 3 und 4 sind verstellbar und zeichnen sich dadurch aus, daß das Verhältnis Schlitzbreite 11 zu Schlitzlänge 10 in jeder benutzten Stellung kleiner als 10 ist. Die Ventile haben die Form von Doppelkegelventilen. Das genannte Verhältnis wird mit kleinem Kegelwinkel erreicht, der beispielsweise etwa 4° betragen kann.The gas, such as air, air mixtures with cyclopropane, nitrous oxide or the like, flows through the line 1 from the distributor chamber to. This is connected once via the valve 3 and the line to the evaporator 9, its outlet line is connected to the mixing chamber 7. The by-pass 6 is connected in parallel to the evaporator a resistor 4 is switched on. Both resistors or chokes 3 and 4 are adjustable and stand out characterized in that the ratio of slot width 11 to slot length 10 is less than 10 in every position used. The valves are in the form of double cone valves. The said ratio is given with a small taper angle reached, which can be, for example, about 4 °.

Die Ventile bzw. Drosseln 3, 4 sind derart ausgebildet, daß ihre Widerstandscharakteristiken -^- konstant und gleich sind.The valves or throttles 3, 4 are designed such that their resistance characteristics - ^ - are constant and equal.

Claims (3)

P.A.539 901*20.8.62 - 4 - 5 SchutzansprücheP.A.539 901 * 8/20/62 - 4 - 5 protection claims 1. Narkosegerät mit einem dem Yerdampfer parallelgeschalteten By-Pass, wobei in die By-Pass- und/oder die YerdampferZweigleitung Regelventile eingeschaltet sind, dadurch gekennzeichnet, daß in der By-Pass-Zweigleitung und in der1. Anesthesia machine with one connected in parallel to the yeast steamer By-pass, whereby in the by-pass and / or the Yerdampfer branch line Control valves are switched on, characterized in that in the by-pass branch line and in the ■4^4-Verdampfer-Zweigleitung je eine Drossel eingeoh ist, ■ 4 ^ 4- evaporator branch line each has a throttle, bei denen das Verhältnis Drosselspaltbreite zu Drossel-in which the ratio of the throttle gap width to the throttle —2—2 länge kleiner als 10 ist.length is less than 10. 2. narkosegerät nach Anspruch 1, dadurch gekennzeichnet, daß die Drosseln verstellbar sind.2. anesthesia machine according to claim 1, characterized in that the throttles are adjustable. 3. narkosegerät nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Drosseln als Kegelventile ausgebildet sind, deren Kegel- und Ventilsitze den gleichen Kegelwinkel besitzen.3. anesthesia machine according to claim 1 and 2, characterized in that the throttles are designed as cone valves, whose The cone and valve seats have the same cone angle.
DED20850U 1960-07-22 1960-07-22 Anesthesia machine. Expired DE1861618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED20850U DE1861618U (en) 1960-07-22 1960-07-22 Anesthesia machine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED20850U DE1861618U (en) 1960-07-22 1960-07-22 Anesthesia machine.

Publications (1)

Publication Number Publication Date
DE1861618U true DE1861618U (en) 1962-11-08

Family

ID=33139530

Family Applications (1)

Application Number Title Priority Date Filing Date
DED20850U Expired DE1861618U (en) 1960-07-22 1960-07-22 Anesthesia machine.

Country Status (1)

Country Link
DE (1) DE1861618U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282857B (en) * 1966-01-07 1968-11-14 Draegerwerk Ag Anesthesia device with a by-pass connected in parallel to the vaporizer
DE1298239B (en) * 1960-07-22 1969-06-26 Draegerwerk Ag Anesthesia machine with a bypass connected in parallel to the vaporizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298239B (en) * 1960-07-22 1969-06-26 Draegerwerk Ag Anesthesia machine with a bypass connected in parallel to the vaporizer
DE1282857B (en) * 1966-01-07 1968-11-14 Draegerwerk Ag Anesthesia device with a by-pass connected in parallel to the vaporizer

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