EP0236851A2 - Baby incubator - Google Patents
Baby incubator Download PDFInfo
- Publication number
- EP0236851A2 EP0236851A2 EP87102667A EP87102667A EP0236851A2 EP 0236851 A2 EP0236851 A2 EP 0236851A2 EP 87102667 A EP87102667 A EP 87102667A EP 87102667 A EP87102667 A EP 87102667A EP 0236851 A2 EP0236851 A2 EP 0236851A2
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- EP
- European Patent Office
- Prior art keywords
- air
- hood
- incubator
- air outlet
- along
- 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.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G11/00—Baby-incubators; Couveuses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G11/00—Baby-incubators; Couveuses
- A61G11/005—Baby-incubators; Couveuses with movable walls, e.g. for accessing the inside, removable walls
- A61G11/006—Baby-incubators; Couveuses with movable walls, e.g. for accessing the inside, removable walls by pivoting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G11/00—Baby-incubators; Couveuses
- A61G11/009—Baby-incubators; Couveuses with hand insertion windows, e.g. in the walls
Definitions
- the invention relates to an incubator for maintaining a warm environment for small children, consisting of an essentially elongated lying surface, which is enclosed by a hood, from which at least one side wall is designed as a front side provided with closable access openings, with an air outlet for in the edge region of the lying surface the air supply in the hood and an air inlet for the air discharge from the hood are arranged.
- Such incubators are used to accommodate toddlers or even premature and newborn babies in order to isolate them in a protected atmosphere.
- the incubator air should be adjustable and maintainable with respect to temperature, oxygen content and air humidity within certain limits. Particularly high demands are placed on the temperature stability and the uniform temperature distribution in the area of the lying surface. This applies both when the incubator is closed and during the necessary treatment measures to be carried out on the patient, for which the openings provided for this purpose, such as handle openings or larger flaps, must be opened.
- the heat supplied to the interior of the incubator should then only escape to the colder surroundings to the least possible extent, and the heat loss due to convection or radiant heat should also be as low as possible even when closed.
- a known incubator according to DE-OS 31 00 932 has a rectangular lying surface within a hood, at the top and bottom of which an air outlet or an air inlet is provided. Heated air is blown into the interior of the hood from the air outlet via a circulating unit and extracted via the air inlet at the foot end. The circulating warm air is distributed in the lying area and is supposed to maintain a constant temperature there. On the long side of the hood there is a larger flap with hand opening, which can be opened in the vertical direction and swiveled away completely. When the front flap is open, an additional air outlet for the heated incubator air is exposed, which extends completely along the long side of the lying surface. The warm incubator air now emerges both at the head end and at the newly opened air outlet along the long side of the front flap and is drawn off via the air inlet remaining at the foot end.
- a warm air curtain is to be created when the front flap is open, which should prevent an air exchange with the surroundings.
- Such an air curtain is achieved only imperfectly by the known warm air guidance, because hot air is now blown out of two air outlet openings, the flow paths of which cross each other, so that a closed air circulation between the two air outlets and the only air inlet at the foot end can no longer form. Rather, incorrect air is sucked in through the open front flap and warm air is pressed out of the interior of the incubator accordingly. This causes a noticeable disturbance in the temperature balance in the interior of the incubator, and there is a significant drop in the temperature level in the area of the lying surface.
- the front air outlet remains closed and no warm air curtain is formed, so that cold air from the surroundings can penetrate into the interior of the incubator.
- Another known incubator according to EP-A 32 133 has a cylindrical double-shell hood, which is divided into segments along the cylinder axis, the warm air being blown into the space between the double wall via an air outlet at the rear of the hood and out at the front when the hood is closed the intermediate space is suctioned off again.
- Several openings in the inner shell of the double-walled hood allow a small proportion of the warm air to enter the interior of the hood. When the front is open, the air circulation between the hood shells is interrupted, so that all of the warm air is blown into the interior of the hood via the openings in the inner shell.
- the present invention is therefore based on the object of improving an incubator of the type mentioned in such a way that the air flow to maintain a stable incubator air temperature when the hood is closed reduces heat losses due to convection and radiation and favors the construction of a stable warm air curtain when the front is fully or partially open.
- the advantage of the invention lies essentially in the fact that the air outlet velocity and air inlet extending along the long sides can substantially reduce the air flow velocity, so that as little air turbulence as possible occurs within the incubator at the point where the patient is, and thus as possible little heat loss due to air convection occurs.
- the amount of air required for stable air temperature control can nevertheless be circulated to a sufficient extent. Even when the access openings on the front are open, there is only a very small heat loss, since the air curtain rises on the inside along the closed front and is sucked off through the air inlet on the back.
- the front and the back are designed as a double wall open in their edge area and the air outlet and the air inlet open into the space between the double wall.
- a directional air flow curtain is thereby achieved which moves within the spaces between the double walls and thus creates a warming insulation layer on the large wall parts of the incubator hood.
- guide ribs are provided at the air outlet. These cause the heated incubator air to have the same flow rate at every point in the air outlet Swipe past vertically upwards along the inner surface of the front, or flow freely vertically upwards with the front flap open, forming a stable warm air curtain.
- the incubator shown in section in Fig. 1 has a housing (1) for receiving various units, of which only the fan (2) with its drive motor (3) and the heater (4) with its supply unit (5) are shown.
- the housing (1) is separated from the incubator interior (6) by a lying surface (7).
- the lying surface (7) carries a bed (9) for supporting the toddler, not shown, via supports (8).
- the interior (6) is enclosed with a hood (10) that is transparent on all sides.
- On the front of the hood (10) there is a front flap (13) held by hinges (11) and closures (12), which can be opened completely downwards around its hinges (11).
- Both in the front flap (13) and on the rear (14) of the hood (10) there are access openings (16) which can be closed with flaps (15).
- a short distance from the inner surfaces of the front flap (13) and the rear (14) are double walls (18,19) attached, which also have the passage openings (16) opposite passage openings (16 ').
- the double walls (18, 19) are connected to the front flap (13) or the rear side (14) via spacers (20). When the front flap (13) is opened, the double wall (18) is also pivoted.
- the air outlet (21) is located between the long side of the lying surface (7) and the front side of the incubator provided with the front flap (13).
- the air inlet (22) is located on the rear of the incubator between the rear wall (14) and the lying surface (7).
- the interior air is passed via the air inlet (22) to the fan (2) in the guide channel (23) and is conveyed from there along the heater (4), the air being heated to the desired temperature value.
- the heated air enters the incubator interior (6) from the air outlet (21). It is distributed evenly along the air outlet (21) via guide ribs (24) and directed vertically upwards.
- the air flow along the front flap (13) and along the back (14) runs in the direction shown by the arrows (25) in the spaces between the front flap (13) and the double wall (18) or rear wall (14) and Double wall (19) While the heated air flows through the top of the hood (10), the warm air is swirled slightly into the interior of the incubator, so that the heated air reaches the area of the bed (9).
- a partial area of the air outlet (21) is shown enlarged in different sections.
- the air delivered by the fan (2) via the heater (4) is blown into the air outlet (21) through the channels (26) between the guide ribs (24).
- the arrangement of the guide ribs (24) is selected such that the heated air flows into the air outlet (21) at a right angle.
- the cross-section of the channels (26) formed between the lying surface (7) and the housing (1) is designed in such a way that the heated air flows evenly into the air outlet (21) with respect to the flow rate and quantity.
Abstract
Ein Inkubator zur Aufrechterhaltung einer warmen Umgebung für Kleinkinder, bestehend aus einer im wesentlichen längsgestreckten Liegefläche (7), die von einer Haube (10) umschlossen ist, von der mindestens eine Seitenwand als mit verschließbaren Zugangsöffnungen (16) versehene Frontseite ausgebildet ist, wobei im Randbereich der Liegefläche (7) ein Luftauslaß (21) für die Luftzufuhr in die Haube (10) und ein Lufteintritt (22) für den Luftabfluß aus der Haube (10) angeordnet sind, soll derart verbessert werden, daß die Luftführung zur Aufrechterhaltung einer stabilen Inkubatorlufttemperatur bei geschlossener Haube (10) Wärmeverluste durch Konvektion und Strahlung vermindert und bei geöffneter Frontseite den Aufbau eines stabilen Warmluftvorhangs begünstigt. Dazu ist vorgesehen, daß der Luftauslaß (21) entlang der Frontseite (13) und der Lufteintritt (22) entlang der ihr gegenüberliegenden Rückseite (14) angeordnet sind. 
Description
Die Erfindung betrifft einen Inkubator zur Aufrechterhaltung einer warmen Umgebung für Kleinkinder, bestehend aus einer im wesentlichen längsgestreckten Liegefläche, die von einer Haube umschlossen ist, von der mindestens eine Seitenwand als mit verschließbaren Zugangsöffnungen versehene Frontseite ausgebildet ist, wobei im Randbereich der Liegefläche ein Luftauslaß für die Luftzufuhr in die Haube und ein Lufteintritt für den Luftabfluß aus der Haube angeordnet sind.The invention relates to an incubator for maintaining a warm environment for small children, consisting of an essentially elongated lying surface, which is enclosed by a hood, from which at least one side wall is designed as a front side provided with closable access openings, with an air outlet for in the edge region of the lying surface the air supply in the hood and an air inlet for the air discharge from the hood are arranged.
Derartige Inkubatoren werden dazu eingesetzt, Kleinkinder oder auch Früh- und Neugeborene aufzunehmen, um sie in einer geschützten Atmosphäre zu isolieren. Dabei soll die Inkubatorluft bezüglich Temperatur, Sauerstoffgehalt und Luftfeuchte in gewissen Grenzen einstellbar sein und aufrecht erhalten werden können. Insbesondere werden an die Temperaturstabilität und die gleichmäßige Temperaturverteilung im Bereich der Liegefläche besonders hohe Anforderungen gestellt. Dies gilt sowohl bei geschlossenem Inkubator als auch während notwendiger, am Patienten durchzuführenden Behandlungsmaßnahmen, zu denen die dafür vorgesehenen Öffnungen, wie z.B. Handdurchgriffsöffnungen oder auch größere Klappen, geöffnet werden müssen. Die in den Innenraum des Inkubators zugeführte Wärme soll dann nur in geringstmöglichem Umfange in die kältere Umgebung entweichen, und auch im geschlossenen Zustand soll der Wärmeverlust infolge von Konvektion oder Strahlungswärme so gering wie möglich sein.Such incubators are used to accommodate toddlers or even premature and newborn babies in order to isolate them in a protected atmosphere. The incubator air should be adjustable and maintainable with respect to temperature, oxygen content and air humidity within certain limits. Particularly high demands are placed on the temperature stability and the uniform temperature distribution in the area of the lying surface. This applies both when the incubator is closed and during the necessary treatment measures to be carried out on the patient, for which the openings provided for this purpose, such as handle openings or larger flaps, must be opened. The heat supplied to the interior of the incubator should then only escape to the colder surroundings to the least possible extent, and the heat loss due to convection or radiant heat should also be as low as possible even when closed.
Ein bekannter Inkubator nach DE-OS 31 00 932 besitzt eine rechteckig geformte Liegefläche innerhalb einer Haube, an deren Kopf- und Fußende ein Luftauslaß bzw. ein Lufteintritt vorgesehen ist. Über ein Umwälzaggregat wird angewärmte Luft aus dem Luftauslaß in den Haubeninnenraum eingeblasen und über den Lufteintritt am Fußende abgesaugt. Die zirkulierende Warmluft verteilt sich im Liegebereich und soll dort eine gleichbleibende Temperatur aufrechterhalten. An der Längsseite der Haube befindet sich eine mit Handdurchgriffsöffnungen versehene größere Klappe, die in vertikaler Richtung geöffnet und völlig weggeschwenkt werden kann. Bei geöffneter Frontklappe wird ein zusätzlicher Luftauslaß für die angewärmte Inkubatorluft freigelegt, welcher sich vollständig entlang der Längsseite der Liegefläche erstreckt. Nunmehr tritt die warme Inkubatorluft sowohl an dem Kopfende sowie an dem neugeöffneten Luftauslaß entlang der Längsseite der Frontklappe aus und wird über den am Fußende verbleibenden Lufteintritt abgesaugt.A known incubator according to DE-OS 31 00 932 has a rectangular lying surface within a hood, at the top and bottom of which an air outlet or an air inlet is provided. Heated air is blown into the interior of the hood from the air outlet via a circulating unit and extracted via the air inlet at the foot end. The circulating warm air is distributed in the lying area and is supposed to maintain a constant temperature there. On the long side of the hood there is a larger flap with hand opening, which can be opened in the vertical direction and swiveled away completely. When the front flap is open, an additional air outlet for the heated incubator air is exposed, which extends completely along the long side of the lying surface. The warm incubator air now emerges both at the head end and at the newly opened air outlet along the long side of the front flap and is drawn off via the air inlet remaining at the foot end.
Beim bekannten Inkubator soll bei geöffneter Frontklappe ein Warmluftvorhang entstehen, der einen Luftaustausch mit der Umgebung verhindern soll. Ein solcher Luftvorhang wird jedoch durch die bekannte Warmluftführung nur unvollkommen erzielt, weil jetzt aus zwei Luftaustrittsöffnungen Warmluft ausgeblasen wird, deren Strömungsbahnen sich gegenseitig kreuzen, so daß sich nicht mehr eine geschlossene Luftzirkulation zwischen den beiden Luftauslässen und dem einzigen Lufteintritt am Fußende ausbilden kann. Es kommt vielmehr zu einem Ansaugen von Fehlluft durch die geöffnete Frontklappe und ein entsprechendes Ausdrücken von Warmluft aus dem Inkubatorinnenraum. Dadurch entsteht eine merkliche Störung des Temperaturgleichgewichtes im Inkubatorinnenraum,und es kommt zu einem erheblichen Einbruch des Temperaturniveaus im Bereich der Liegefläche.In the known incubator, a warm air curtain is to be created when the front flap is open, which should prevent an air exchange with the surroundings. Such an air curtain is achieved only imperfectly by the known warm air guidance, because hot air is now blown out of two air outlet openings, the flow paths of which cross each other, so that a closed air circulation between the two air outlets and the only air inlet at the foot end can no longer form. Rather, incorrect air is sucked in through the open front flap and warm air is pressed out of the interior of the incubator accordingly. This causes a noticeable disturbance in the temperature balance in the interior of the incubator, and there is a significant drop in the temperature level in the area of the lying surface.
Auch bei geschlossener Frontplatte (und damit entfallendem Luftvorhang an der Frontseite) erreicht die bekannte Luftführung nicht die erwünschte Reduzierung des Wärmeverlustes des Kindes durch Strahlungswärme. Durch die ausströmende Warmluft werden lediglich die verhältnismäßig kleinflächigen Stirnseiten der Inkubatorhaube angewärmt, wohingegen durch die großflächigen und kälteren Front- und Rückseite der Haube nach wie vor ein erheblicher Strahlungswärmeverlust auftritt.Even when the front panel is closed (and thus the air curtain on the front is eliminated), the known air routing does not achieve the desired reduction in the child's heat loss through radiant heat. The outflowing warm air only warms up the relatively small-area end faces of the incubator hood, whereas the large and colder front and back of the hood still causes considerable radiation heat loss.
Ist die Frontseite geschlossen und sind die in ihr befindlichen Handdurchgriffsöffnungen geöffnet, bleibt der frontseitige Luftauslaß geschlossen und es bildet sich kein Warmluftvorhang aus, so daß Kaltluft aus der Umgebung in den Inkubatorinnenraum eindringen kann.If the front is closed and the handle openings located in it are open, the front air outlet remains closed and no warm air curtain is formed, so that cold air from the surroundings can penetrate into the interior of the incubator.
Ein weiterer bekannter Inkubator nach EP-A 32 133 besitzt eine zylinderförmige doppelschalige Haube, welche längs der Zylinderachse in Segmente aufgeteilt ist, wobei die Warmluft bei geschlossener Haube über einen Luftaustritt an der Rückseite der Haube in den Zwischenraum der Doppelwand eingeblasen und an der Frontseite aus dem Zwischenraum wieder abgesaugt wird. Mehrere Öffnungen in der Innenschale der doppelwandigen Haube lassen einen geringen Anteil der Warmluft in den Haubeninnenraum eindringen. Bei geöffneter Frontseite wird die Luftzirkulation zwischen den Haubenschalen unterbrochen, so daß die gesamte Warmluft über die Öffnungen der Innenschale in den Haubeninnenraum eingeblasen wird. Da der Lufteintritt entlang der Frontseite nunmehr gegenüber der Umgebung völlig geöffnet ist, wird neben der warmen Inkubatorluft auch kalte Umgebungsluft angesaugt,und ein Großteil der warmen Inkubatorluft tritt in die kalte Umgebung aus. Auch hierbei ist ein Einbruch der Inkubatortemperatur die Folge, die zu einem erheblichen Konvektions-Wärmeverlust für den im Inkubator befindlichen Patienten führt. Bei einer vollständigen Öffnung der Frontseite entweicht die angewärmte Inkubatorluft gänzlich in die Umgebung,und eine Aufrechterhaltung der einmal eingestellten Lufttemperatur ist nicht mehr gewährleistet.Another known incubator according to EP-A 32 133 has a cylindrical double-shell hood, which is divided into segments along the cylinder axis, the warm air being blown into the space between the double wall via an air outlet at the rear of the hood and out at the front when the hood is closed the intermediate space is suctioned off again. Several openings in the inner shell of the double-walled hood allow a small proportion of the warm air to enter the interior of the hood. When the front is open, the air circulation between the hood shells is interrupted, so that all of the warm air is blown into the interior of the hood via the openings in the inner shell. Since the air inlet along the front is now completely open to the environment, cold ambient air is drawn in in addition to the warm incubator air, and a large part of the warm incubator air exits into the cold environment. Here too is a slump Incubator temperature result, which leads to a significant convection heat loss for the patient in the incubator. When the front is completely opened, the heated incubator air escapes completely into the environment, and maintaining the air temperature once set is no longer guaranteed.
Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, einen Inkubator der genannten Art derart zu verbessern, daß die Luftführung zur Aufrechterhaltung einer stabilen Inkubatorlufttemperatur bei geschlossener Haube Wärmeverluste durch Konvektion und Strahlung vermindert und bei ganz oder teilweise geöffneter Frontseite den Aufbau eines stabilen Warmluftvorhangs begünstigt.The present invention is therefore based on the object of improving an incubator of the type mentioned in such a way that the air flow to maintain a stable incubator air temperature when the hood is closed reduces heat losses due to convection and radiation and favors the construction of a stable warm air curtain when the front is fully or partially open.
Die Lösung der genannten Aufgabe ergibt sich dadurch, daß der Luftauslaß entlang der Frontseite und der Lufteintritt entlang der ihr gegenüberliegenden Rückseite angeordnet sind.The solution to the stated problem results from the fact that the air outlet is arranged along the front side and the air inlet along the opposite rear side.
Der Vorteil der Erfindung liegt im wesentlichen darin, daß durch die entlang den Längsseiten ausgedehnten Luftauslaß und Lufteintritt eine wesentliche Erniedrigung der Luftströmungsgeschwindigkeit erreicht werden kann, so daß innerhalb des Inkubators an der Stelle, wo der Patient sich aufhält, möglichst wenig Luftverwirbelung auftritt und somit möglichst wenig Wärmeverlust infolge von Luftkonvektion auftritt. Dabei kann dennoch die für eine stabile Lufttemperaturregelung notwendige Luftmenge in ausreichendem Maße umgewälzt werden. Selbst bei geöffneten Durchgriffsöffnungen der Frontseite tritt nur ein sehr kleiner Wärmeverlust auf, da der Luftvorhang entlang der geschlossenen Frontseite auf der Innenseite emporsteigt und durch den Lufteintritt auf der Rückseite abgesaugt wird.The advantage of the invention lies essentially in the fact that the air outlet velocity and air inlet extending along the long sides can substantially reduce the air flow velocity, so that as little air turbulence as possible occurs within the incubator at the point where the patient is, and thus as possible little heat loss due to air convection occurs. The amount of air required for stable air temperature control can nevertheless be circulated to a sufficient extent. Even when the access openings on the front are open, there is only a very small heat loss, since the air curtain rises on the inside along the closed front and is sucked off through the air inlet on the back.
Auch bei ganz geöffneter Frontseite bleibt eine in sich geschlossene Luftzirkulation im Inkubatorinnenraum erhalten,und die Ansaugung von Fehlluft aus der Umgebung ist für die Aufrechterhaltung einer stabilen Lufttemperatur im Innenraum ohne Bedeutung. Außerdem wird ein mechanisch aufwendiger Steuermechanismus für die Umlenkung der Luftführung bei ganz geöffneter Frontklappe vermieden.Even when the front is fully open, closed air circulation in the interior of the incubator is maintained, and the intake of incorrect air from the surroundings is of no importance for maintaining a stable air temperature in the interior. In addition, a mechanically complex control mechanism for deflecting the air duct when the front flap is fully open is avoided.
Zur weiteren Erhöhung der thermischen Isolation des Inkubatorinnenraumes gegenüber der Umgebung kann vorgesehen sein, die Frontseite und die Rückseite als eine in ihrem Randbereich offene Doppelwand auszubilden und den Luftauslaß sowie den Lufteintritt in den Zwischenraum der Doppelwand münden zu lassen. Dadurch wird ein gerichteter Luftströmungsvorhang erzielt, der sich innerhalb der Zwischenräume der Doppelwände bewegt und somit eine wärmende Isolationsschicht an den großflächigen Wandteilen der Inkubatorhaube erzeugt.To further increase the thermal insulation of the interior of the incubator from the surroundings, it can be provided that the front and the back are designed as a double wall open in their edge area and the air outlet and the air inlet open into the space between the double wall. A directional air flow curtain is thereby achieved which moves within the spaces between the double walls and thus creates a warming insulation layer on the large wall parts of the incubator hood.
In Weiterbildung der Erfindung ist es vorteilhaft, den Randbereich der Doppelwand lediglich an der dem Luftauslaß bzw. dem Lufteintritt gegenüberliegenden Seite offenzulassen. Dadurch wird eine noch gezieltere Ausrichtung der Luftströmung innerhalb der Doppelwand erreicht, und die umwälzende Luft wird im wesentlichen entlang der Haube geführt, während sich der Liegebereich des Kindes nun in einer strömungsberuhigten Zone befindet.In a development of the invention, it is advantageous to leave the edge region of the double wall open only on the side opposite the air outlet or the air inlet. As a result, an even more targeted alignment of the air flow within the double wall is achieved, and the circulating air is guided essentially along the hood, while the child's lying area is now in a calming zone.
Um eine gleichbleibende, entlang dem Luftaustritt gleichmäßig verlaufende Luftströmung zu erzielen, sind an dem Luftaustritt Leitrippen vorgesehen. Diese bewirken, daß an jeder Stelle des Luftaustritts die angewärmte Inkubatorluft mit der gleichen Strömungsgeschwindigkeit senkrecht nach oben gerichtet entlang der Innenfläche der Frontseite vorbeistreicht, oder bei geöffneter Frontklappe frei senkrecht nach oben strömt und dabei einen stabilen Warmluftvorhang bildet.In order to achieve a constant air flow that runs evenly along the air outlet, guide ribs are provided at the air outlet. These cause the heated incubator air to have the same flow rate at every point in the air outlet Swipe past vertically upwards along the inner surface of the front, or flow freely vertically upwards with the front flap open, forming a stable warm air curtain.
Ein Ausführungsbeispiel der Erfindung ist anhand der schematischen Zeichnung dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is illustrated by the schematic drawing and is explained in more detail below.
Es zeigen
- Fig. 1 den Inkubator im Schnitt
- Fig. 2 eine Teildraufsicht auf den Luftauslaß gem. Schnitt AB
- Fig. 3 einen Querschnitt durch den Luftauslaß gem. Schnitt CD.
- Fig. 1 shows the incubator in section
- Fig. 2 is a partial plan view of the air outlet acc. Section AB
- Fig. 3 shows a cross section through the air outlet. Editing CD.
Der in Fig. 1 im Schnitt dargestellte Inkubator besitzt ein Gehäuse (1) zur Aufnahme verschiedener Aggregate, von denen lediglich der Lüfter (2) mit seinem Antriebsmotor (3) sowie die Heizung (4) mit ihrer Versorgungseinheit (5) dargestellt sind. Das Gehäuse (1) ist gegenüber dem Inkubatorinnenraum (6) durch eine Liegefläche (7) getrennt. Die Liegefläche (7) trägt über Stützen (8) ein Liegebett (9) zur Aufnahme des nicht dargestellten Kleinkindes. Der Innenraum (6) ist gegenüber der Umgebung mit einer allseitig durchsichtigen Haube (10) umschlossen. An der Frontseite der Haube (10) befindet sich eine über Scharniere (11) und Verschlüsse (12) gehaltene Frontklappe (13), welche um ihre Scharniere (11) vollständig nach unten geöffnet werden kann. Sowohl in der Frontklappe (13) als auch an der Rückseite (14) der Haube (10) befinden sich mit Klappen (15) verschließbare Durchgriffsöffnungen (16). In geringem Abstand zu den Innenflächen der Frontklappe (13) und der Rückseite (14) sind Doppelwände (18,19) angebracht, welche ebenfalls den Durchgriffsöffnungen (16) gegenüberliegende Durchgriffsöffnungen (16′) aufweisen. Die Doppelwände (18,19) sind über Abstandshalter (20) mit der Frontklappe (13) bzw. der Rückseite (14) verbunden. Beim Öffnen der Frontklappe (13) wird die Doppelwand (18) mitgeschwenkt. Zwischen der Längsseite der Liegefläche (7) und der mit der Frontklappe (13) versehenen Frontseite des Inkubators befindet sich der Luftauslaß (21). Auf der Rückseite des Inkubators zwischen Rückwand (14) und Liegefläche (7) befindet sich der Lufteintritt (22).The incubator shown in section in Fig. 1 has a housing (1) for receiving various units, of which only the fan (2) with its drive motor (3) and the heater (4) with its supply unit (5) are shown. The housing (1) is separated from the incubator interior (6) by a lying surface (7). The lying surface (7) carries a bed (9) for supporting the toddler, not shown, via supports (8). The interior (6) is enclosed with a hood (10) that is transparent on all sides. On the front of the hood (10) there is a front flap (13) held by hinges (11) and closures (12), which can be opened completely downwards around its hinges (11). Both in the front flap (13) and on the rear (14) of the hood (10) there are access openings (16) which can be closed with flaps (15). A short distance from the inner surfaces of the front flap (13) and the rear (14) are double walls (18,19) attached, which also have the passage openings (16) opposite passage openings (16 '). The double walls (18, 19) are connected to the front flap (13) or the rear side (14) via spacers (20). When the front flap (13) is opened, the double wall (18) is also pivoted. The air outlet (21) is located between the long side of the lying surface (7) and the front side of the incubator provided with the front flap (13). The air inlet (22) is located on the rear of the incubator between the rear wall (14) and the lying surface (7).
Im Betrieb wird bei geschlossener Inkubatorhaube die Innenraumluft über den Lufteintritt (22) zu dem Lüfter (2) in den Führungskanal (23) geleitet und von dort entlang der Heizung (4) gefördert, wobei die Luft auf den gewünschten Temperaturwert angewärmt wird. Hinter der Heizung (4) tritt die angewärmte Luft aus dem Luftauslaß (21) in den Inkubatorinnenraum (6) ein. Dabei wird sie über Leitrippen (24) gleichmäßig entlang des Luftauslasses (21) verteilt und senkrecht nach oben gerichtet. Die Luftströmung entlang der mit der Frontklappe (13) versehenen Frontseite und entlang der Rückseite (14) verläuft in der mit den Pfeilen (25) dargestellten Richtung in den Zwischenräumen zwischen Frontklappe (13) und Doppelwand (18) bzw. Rückwand (14) und Doppelwand (19) Während des Durchströmens der angewärmten Luft an der Oberseite der Haube (10) findet eine leichte Verwirbelung der Warmluft in den Inkubatorinnenraum statt, so daß die angewärmte Luft in den Bereich des Liegebettes (9) gelangt.In operation, with the incubator hood closed, the interior air is passed via the air inlet (22) to the fan (2) in the guide channel (23) and is conveyed from there along the heater (4), the air being heated to the desired temperature value. Behind the heater (4), the heated air enters the incubator interior (6) from the air outlet (21). It is distributed evenly along the air outlet (21) via guide ribs (24) and directed vertically upwards. The air flow along the front flap (13) and along the back (14) runs in the direction shown by the arrows (25) in the spaces between the front flap (13) and the double wall (18) or rear wall (14) and Double wall (19) While the heated air flows through the top of the hood (10), the warm air is swirled slightly into the interior of the incubator, so that the heated air reaches the area of the bed (9).
In den Fig. 2 und 3 ist ein Teilbereich des Luftauslasses (21) in verschiedener Schnittführung vergrößert dargestellt. In den Luftauslaß (21) wird die vom Lüfter (2) über die Heizung (4) geförderte Luft dürch die Kanäle (26) zwischen den Leitrippen (24) eingeblasen. Dabei ist die Anordnung der Leitrippen (24) derart gewählt, daß die angewärmte Luft im rechten Winkel in den Luftauslaß (21) einströmt. Der Querschnitt der zwischen Liegefläche (7) und Gehäuse (1) gebildeten Kanäle (26) ist derart ausgestaltet, daß die angewärmte Luft in bezug auf Strömungsgeschwindigkeit und Menge gleichmäßig in den Luftauslaß (21) einströmt.2 and 3, a partial area of the air outlet (21) is shown enlarged in different sections. The air delivered by the fan (2) via the heater (4) is blown into the air outlet (21) through the channels (26) between the guide ribs (24). The arrangement of the guide ribs (24) is selected such that the heated air flows into the air outlet (21) at a right angle. The cross-section of the channels (26) formed between the lying surface (7) and the housing (1) is designed in such a way that the heated air flows evenly into the air outlet (21) with respect to the flow rate and quantity.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863607575 DE3607575A1 (en) | 1986-03-07 | 1986-03-07 | INKUBATOR FOR TODDLERS |
| DE3607575 | 1986-03-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0236851A2 true EP0236851A2 (en) | 1987-09-16 |
| EP0236851A3 EP0236851A3 (en) | 1988-10-12 |
| EP0236851B1 EP0236851B1 (en) | 1991-01-23 |
Family
ID=6295780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87102667A Expired - Lifetime EP0236851B1 (en) | 1986-03-07 | 1987-02-25 | Baby incubator |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4846783A (en) |
| EP (1) | EP0236851B1 (en) |
| DE (2) | DE3607575A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2217250A (en) * | 1988-04-09 | 1989-10-25 | Cambridge Isolation Tech | Isolators |
| AU605854B2 (en) * | 1987-05-15 | 1991-01-24 | Boc Group, Inc., The | Infant incubator with air curtain |
| US5453077A (en) * | 1993-12-17 | 1995-09-26 | Hill-Rom Company, Inc. | Infant thermal support device |
| US5759149A (en) * | 1993-12-17 | 1998-06-02 | Hill-Rom, Inc. | Patient thermal support device |
| US5817003A (en) * | 1993-12-17 | 1998-10-06 | Hill-Rom, Inc. | Controller for a patient warming device |
| WO1999021526A1 (en) * | 1997-10-29 | 1999-05-06 | Torgeir Hamsund | Infant incubator |
| US6611978B1 (en) | 1999-11-15 | 2003-09-02 | Hill-Rom Services, Inc. | Patient-support apparatus |
| US6709384B1 (en) | 1993-12-17 | 2004-03-23 | Hill-Rom Services, Inc. | Infant thermal support device |
| WO2005023164A1 (en) | 2003-09-05 | 2005-03-17 | Nikola Pavlovic | Three functional neonatal movable incubator |
| US6880188B1 (en) | 1999-11-15 | 2005-04-19 | Draeger Medical Infant Care, Inc. | Infant care apparatus with movable infant support |
| CN106859890A (en) * | 2017-03-28 | 2017-06-20 | 中国人民解放军第三军医大学第三附属医院 | Infant incubator |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4008822A1 (en) * | 1990-03-20 | 1991-09-26 | Draegerwerk Ag | INCUBATOR WITH EVEN VENTILATION |
| US5169217A (en) * | 1991-04-10 | 1992-12-08 | International Portland Corporation | Controlled environment chamber apparatus |
| DE19526103A1 (en) * | 1995-07-18 | 1997-01-30 | Draegerwerk Ag | Incubator with all-round air flow |
| US6024694A (en) * | 1995-09-25 | 2000-02-15 | Hill-Rom, Inc. | Humidifier for a thermal support apparatus |
| JPH09276343A (en) * | 1996-04-12 | 1997-10-28 | Atom Medical Kk | Incubator |
| JPH09285505A (en) * | 1996-04-19 | 1997-11-04 | Atom Medical Kk | Incubator |
| JPH09285506A (en) * | 1996-04-19 | 1997-11-04 | Atom Medical Kk | Incubator |
| US5768723A (en) * | 1996-05-21 | 1998-06-23 | Eckel; Alan | Audiometric crib for infants |
| DE19725498C1 (en) * | 1997-06-17 | 1998-10-15 | Draegerwerk Ag | Incubator for small infants |
| JPH1133063A (en) * | 1997-07-15 | 1999-02-09 | Atom Medical Kk | Incubator |
| JPH1176324A (en) * | 1997-09-09 | 1999-03-23 | Atom Medical Kk | Incubator |
| US6036633A (en) * | 1998-01-30 | 2000-03-14 | Datex-Ohmeda, Inc. | Dual incubator temperature control system |
| US6500111B1 (en) * | 1998-11-13 | 2002-12-31 | Fisher & Paykel Limited | Infant care enclosure |
| US6428465B1 (en) | 1999-12-11 | 2002-08-06 | Datex - Ohmeda, Inc. | Infant care apparatus with uniform flow pattern |
| US6256454B1 (en) * | 1999-12-11 | 2001-07-03 | Datex- Ohmeda, Inc. | Humidifier for infant warming apparatus |
| US6669626B1 (en) | 1999-12-23 | 2003-12-30 | Hill-Rom Services, Inc. | Humidifier for a patient support apparatus |
| US6425347B1 (en) | 2000-11-09 | 2002-07-30 | Daniel G. Bogner | Livestock incubator |
| DE502004001262D1 (en) * | 2003-09-23 | 2006-10-05 | Evotec Technologies Gmbh | CLIMATE CHAMBER FOR MICROSCOPES |
| US7938113B2 (en) * | 2005-12-01 | 2011-05-10 | Hydrate, Inc. | Inline vaporizer |
| US20110160520A1 (en) * | 2008-11-07 | 2011-06-30 | Draeger Medical Systems, Inc. | Warming therapy device including pump assembly with integrated heating element |
| WO2012090109A1 (en) | 2010-12-28 | 2012-07-05 | Koninklijke Philips Electronics N.V. | Incubator assembly |
| DE202013105901U1 (en) * | 2013-09-02 | 2014-02-11 | Aspect Imaging Ltd. | Incubator with double glazed wall |
| AR096396A1 (en) * | 2014-05-23 | 2015-12-30 | Gay Eduardo Alfonso | INCUBATOR WITH THERMOREGULATORY DISPOSITION FOR PATHOLOGICAL NEWBORN |
| JP5751652B1 (en) * | 2014-05-30 | 2015-07-22 | 株式会社ドリーム産業 | Trimming box |
| CN110353915A (en) * | 2019-07-26 | 2019-10-22 | 苏州贝茵医疗器械有限公司 | A kind of bio-safety infant incubator |
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| GB2067077A (en) * | 1980-01-14 | 1981-07-22 | Air Shields | Incubator |
| DE8514079U1 (en) * | 1984-05-18 | 1985-07-04 | Ameda Ag, Zug | incubator |
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- 1986-03-07 DE DE19863607575 patent/DE3607575A1/en not_active Withdrawn
-
1987
- 1987-02-25 EP EP87102667A patent/EP0236851B1/en not_active Expired - Lifetime
- 1987-02-25 DE DE8787102667T patent/DE3767511D1/en not_active Expired - Fee Related
- 1987-03-05 US US07/022,253 patent/US4846783A/en not_active Expired - Lifetime
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| EP0032133A2 (en) * | 1980-01-08 | 1981-07-15 | AIRCO, Inc. | Isolation incubator |
| GB2067077A (en) * | 1980-01-14 | 1981-07-22 | Air Shields | Incubator |
| DE8514079U1 (en) * | 1984-05-18 | 1985-07-04 | Ameda Ag, Zug | incubator |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU605854B2 (en) * | 1987-05-15 | 1991-01-24 | Boc Group, Inc., The | Infant incubator with air curtain |
| GB2217250A (en) * | 1988-04-09 | 1989-10-25 | Cambridge Isolation Tech | Isolators |
| GB2217250B (en) * | 1988-04-09 | 1991-05-15 | Cambridge Isolation Tech | Isolators |
| US6270452B1 (en) | 1993-12-17 | 2001-08-07 | Hill-Rom Services, Inc. | Infant thermal support device |
| US6296606B1 (en) | 1993-12-17 | 2001-10-02 | Charles Goldberg | Patient thermal support device |
| US5817003A (en) * | 1993-12-17 | 1998-10-06 | Hill-Rom, Inc. | Controller for a patient warming device |
| US5817002A (en) * | 1993-12-17 | 1998-10-06 | Hill-Rom Company, Inc. | Infant thermal support device |
| US7008371B2 (en) | 1993-12-17 | 2006-03-07 | Draeger Medical Infant Care, Inc. | Patient thermal support device |
| US5971914A (en) * | 1993-12-17 | 1999-10-26 | Hill-Rom Company, Inc. | Infant thermal support device |
| US6036634A (en) * | 1993-12-17 | 2000-03-14 | Hill-Rom Company, Inc. | Patient thermal support device |
| US5453077A (en) * | 1993-12-17 | 1995-09-26 | Hill-Rom Company, Inc. | Infant thermal support device |
| US6761682B2 (en) | 1993-12-17 | 2004-07-13 | Hill-Rom Services, Inc. | Patient thermal support device |
| US5759149A (en) * | 1993-12-17 | 1998-06-02 | Hill-Rom, Inc. | Patient thermal support device |
| US6746394B2 (en) | 1993-12-17 | 2004-06-08 | Hill-Rom Services, Inc. | Infant thermal support device |
| US6709384B1 (en) | 1993-12-17 | 2004-03-23 | Hill-Rom Services, Inc. | Infant thermal support device |
| US6511414B1 (en) | 1997-10-29 | 2003-01-28 | Torgeir Hamsund | Infant incubator |
| AU737603B2 (en) * | 1997-10-29 | 2001-08-23 | Torgeir Hamsund | Infant incubator |
| WO1999021526A1 (en) * | 1997-10-29 | 1999-05-06 | Torgeir Hamsund | Infant incubator |
| US6611978B1 (en) | 1999-11-15 | 2003-09-02 | Hill-Rom Services, Inc. | Patient-support apparatus |
| US6880188B1 (en) | 1999-11-15 | 2005-04-19 | Draeger Medical Infant Care, Inc. | Infant care apparatus with movable infant support |
| WO2005023164A1 (en) | 2003-09-05 | 2005-03-17 | Nikola Pavlovic | Three functional neonatal movable incubator |
| CN106859890A (en) * | 2017-03-28 | 2017-06-20 | 中国人民解放军第三军医大学第三附属医院 | Infant incubator |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3607575A1 (en) | 1987-09-10 |
| EP0236851A3 (en) | 1988-10-12 |
| EP0236851B1 (en) | 1991-01-23 |
| DE3767511D1 (en) | 1991-02-28 |
| US4846783A (en) | 1989-07-11 |
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