EP2268980B1 - Device for heating an object by means of a water bath - Google Patents

Device for heating an object by means of a water bath Download PDF

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Publication number
EP2268980B1
EP2268980B1 EP09735392.4A EP09735392A EP2268980B1 EP 2268980 B1 EP2268980 B1 EP 2268980B1 EP 09735392 A EP09735392 A EP 09735392A EP 2268980 B1 EP2268980 B1 EP 2268980B1
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EP
European Patent Office
Prior art keywords
vessel
housing
heating
illumination
display
Prior art date
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Application number
EP09735392.4A
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German (de)
French (fr)
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EP2268980A2 (en
Inventor
Steffen Kraus
Erwin Schneider
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.)
Hirt Zerspanungstechnik GmbH
PFM Medical AG
Original Assignee
Hirt Zerspanungstechnik GmbH
PFM Medical AG
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Publication of EP2268980A2 publication Critical patent/EP2268980A2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • B01L7/02—Water baths; Sand baths; Air baths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/185—Water-storage heaters using electric energy supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/14—Process control and prevention of errors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/18—Means for temperature control
    • B01L2300/1805—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks

Definitions

  • the invention relates to a device for heating an object by means of a water bath, in particular for stretching pathological or histological sections, in particular of paraffin sections before a microscopic examination, with a housing and a tub inserted into the housing, wherein the water bath is temperature controlled by means of an electric heater, wherein the electric heater comprises at least one heating plate associated with the bottom of the tub and wherein a predeterminable water temperature is controllable.
  • Generic devices are known in practice in a wide variety of embodiments. They are used for heating or tempering a water bath, which in turn is used for stretching paraffin sections in the histological laboratory.
  • the known from practice devices of the generic type are problematic insofar as the desired temperature is usually only about multi-stage switch specified. Not infrequently the temperature is measured by an external thermometer or no temperature display is provided at all. The known devices are therefore problematic in the application and have only a low ease of use.
  • a generic device for heating an article by means of a water bath comprises a housing and a well inserted into the housing.
  • the water bath can be tempered by means of an electric heater.
  • the electric heater comprises at least one heating plate associated with the bottom of the tub, wherein a predetermined water temperature is controllable.
  • a lighting is provided, there is a arranged in the front region of the housing lighting, the Indicates the operating state of the device.
  • Another optical indicator is provided within the water bath, which is a chemical indicator for determining the temperature range of molten paraffin. Measures to favor an assessment of the sample quality are foreign to the document.
  • the present invention is based on the object of designing a device for heating an object by means of a water bath, in particular for stretching pathological or histological sections, in particular of paraffin sections, before a microscopic examination and further developing such that a measure is implemented with the simplest construction, which allows an assessment of the quality of a sample of tissue in a water bath.
  • the generic device is characterized in that the tub is equipped with an optionally activatable underwater lighting.
  • the tub is provided with an optionally activatable lighting, in particular with underwater lighting.
  • the lighting may comprise at least one diode as the lighting means.
  • the illumination comprises two independently switchable diodes, preferably for the emission of white and blue light.
  • the illumination is designed as RGB illumination with adjustable colors or with an adjustable wavelength.
  • the lighting is preferably formed in the sides of the trough, so that an aperture of the operator is effectively avoided.
  • the electric heater comprises at least one heating plate associated with the bottom of the tub.
  • a predeterminable water temperature is adjustable. This means that over the operation, the water temperature is determined by a temperature sensor and the heating is regulated accordingly. This ensures that the water bath always has the desired temperature regardless of the ambient temperature, throughput and operating time.
  • the electric heater comprises at least two or more heating plates, wherein the bottom portion of the pan can be sectioned accordingly.
  • the heating plates can be activated together or individually. It is too conceivable that the heating plates in the center of the bottom portion of a circular shape and around it comprise annular segments. Again, a gemeirisame or individual activation according to the energy requirement is possible.
  • the heating plates regardless of their concrete design, can be integral components of the bottom of the tub.
  • the heating plates are connected from below to the bottom of the tub, preferably glued. It is of very particular advantage if the heating plates are bonded by means of an adhesive with high thermal conductivity, namely to promote the heat conduction into the water to be heated inside.
  • the side walls of the tub are provided with heating elements, wherein these heating elements may also be heating plates, but also heating pipes, heating cables, etc.
  • the heating of the water bath is facilitated by the fact that the wall of the tub in the bottom area is made as thin as possible, preferably has a thickness of about 1 mm.
  • the floor area should be made so thin that it is just barely stable, but ensures excellent heat transfer from the heater or the heating elements in the water.
  • the housing may be made of an aluminum block.
  • the surface of the housing is preferably lightly anodized.
  • the arranged in the housing or fixed there well can be made of aluminum.
  • the surface of the When can also be anodized, it being advisable to anodize the surface of the tub dark, especially black, namely to avoid reflections within the tub.
  • the tub has an at least partially the tub rotating storage area for storing samples, slides, etc. It is conceivable that the storage area rotates the tub altogether.
  • the shelf may have a considerable width, namely a width in the range of 30 mm to 70 mm, preferably of about 50 mm. The provision of the shelf offers the operator a very significant safety and relief at work.
  • the support surface is limited by a peripheral, with respect to the shelf raised outer edge, namely, so that no liquid can get onto the surface or on the table.
  • the tray or the edge has a mark for the position of an outflow / discharge, namely as an orientation for the operator.
  • the shelf can also be heated.
  • the heating of the storage area can be activated and regulated independently of the heating in the floor area. In any case, it is essential that the storage surface can also serve for tempering or drying objects located thereon.
  • the housing and / or the tub may be equipped with other functional devices or units.
  • the tub is equipped with an optical and / or electrical or electronic water level indicator.
  • An optical water level indicator could be realized via a window visible from outside the housing in the tub.
  • An electrical or electronic water level indicator could be realized via a display on the housing.
  • the housing can be equipped with a display or with a display.
  • the housing could have a front viewing surface with a display and with separate or integrated controls. If the controls are integrated into the display, the display, with the controls could be designed as a touch panel.
  • electronics for temperature control and for regulating further parameters or variables may be provided in the housing. It goes without saying that the electronics receive signals via a sensor or a transmitter, which is arranged in the wall of the tub or provided there. In any case, the temperature is regulated to a predeterminable or adjustable value, regardless of external influences.
  • the electronics comprise an emergency stop function in such a way that the heater falls below a preferably predeterminable lower limit
  • Water level in the tub is deactivated. It is also conceivable that falls below a lower water level, an optical and / or acoustic signal takes place, after which a refilling of the water is required. It is also conceivable that the device is provided with a water connection, which automatically regulates the water level. In such a case, the capacity is detected and can be constantly fed.
  • the trough is inserted into the housing and fixed there. It is advisable to insert the trough from above into the housing, wherein the housing for this purpose comprises a serving for supporting inner edge.
  • the tub is preferably bolted to the housing from below. From above the device, no fastening means are recognizable in the context of such a configuration.
  • a bottom cover is provided for the bottom-side closing of the housing, wherein the bottom cover is screwed to the housing.
  • bearing buffers are provided for secure installation of the device at the screw connections.
  • Fig. 1 shows a schematic view of an embodiment of an inventive device for heating an object by means of a water bath, namely a device for heating paraffin sections in the pathological / histological Laboratory.
  • the device comprises a housing 1 and a well 2 inserted into the housing 1.
  • the water bath can be tempered by means of an electric heater.
  • the electric heater comprises at least one of the bottom 3 of the tub 2 associated heating plate 4, wherein in Fig. 2 the heating plate is merely indicated. With the electric heater, a predeterminable water temperature is adjustable.
  • the two heating plates 4 can optionally be activated together or individually. They are glued from below to the bottom 3 of the tub 2, with an adhesive with high thermal conductivity.
  • the wall of the tub 2 in the bottom area is made as thin as possible, preferably with a thickness in the range of 1 mm or even less.
  • the housing 1 is made as a whole as a monolithic block of an aluminum block.
  • the surface of the housing 1 is lightly anodized.
  • the tub 2 is also made of aluminum and dark or black anodized.
  • Fig. 1 Furthermore, it can be seen that the trough 2 is equipped with a peripheral storage surface 5, which serves to deposit samples, sample holders, etc.
  • the shelf 5 is heated. It has a width of about 50 mm.
  • the storage area 5 circumferential edge 6 is provided, which ensures on the one hand launched parts against falling and on the other hand prevents liquid can run down the side of the housing wall. Dirt is avoided and a high degree of operational safety is realized.
  • the storage surface 5 further has a mark 7 for the position of an outflow / discharge.
  • the process can take place in the trough 2 or into a drain container, not shown in the figures, arranged in the housing 1.
  • Fig. 1 further shows that in the front region of the device in a sloping surface 8, a display 9 is provided as a touch panel.
  • the display 9 thus comprises a display device and operating elements in one. Water temperatures can be set via the touch panel and can also be programmed via a internal processor can be activated, up to an automatic shutdown of the device.
  • Fig. 2 shows essential parts of the device according to the invention in exploded view.
  • the housing 1 has an inner edge 10 for insertion or placement of the trough 2, wherein the trough 2 is screwed from below to the housing 1.
  • two heating plates 4 are provided, which are glued from below to the bottom 3 of the tub 2 by means of special adhesive, namely by means of adhesive with high thermal conductivity.
  • Fig. 2 is merely indicated that a device socket 11 is provided for electrical connection of the device. From there, the entire electrical / electronics is supplied with electricity, and this has no significance according to the invention.
  • a recess 12 is provided, which is closed by a glass insert 13, a seal 14 and a glass cover 15. This provision allows a visual control of the water level, which is done via a viewing window 16 in the display 9 and 9 on the display.
  • the display 9 is fastened via a frame 17 in a recess 18 in the housing, wherein the display 9 is covered by a special film 19.
  • FIG. 2 shows Fig. 2 in that the housing 1 is closed from below with a floor panel 20, wherein bearing buffers 21 are provided for safe standing from below.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Erwärmen eines Gegenstands mittels Wasserbad, insbesondere zum Strecken von pathologischen bzw. histologischen Schnitten, insbesondere von Paraffinschnitten vor einer mikroskopischen Untersuchung, mit einem Gehäuse und einer in das Gehäuse eingesetzten Wanne, wobei das Wasserbad mittels einer Elektroheizung temperierbar ist, wobei die Elektroheizung mindestens eine dem Boden der Wanne zugeordnet Heizplatte umfasst und wobei eine vorgebbare Wassertemperatur regelbar ist.The invention relates to a device for heating an object by means of a water bath, in particular for stretching pathological or histological sections, in particular of paraffin sections before a microscopic examination, with a housing and a tub inserted into the housing, wherein the water bath is temperature controlled by means of an electric heater, wherein the electric heater comprises at least one heating plate associated with the bottom of the tub and wherein a predeterminable water temperature is controllable.

Gattungsbildende Vorrichtungen sind in den unterschiedlichsten Ausführungsformen aus der Praxis bekannt. Sie dienen zum Erwärmen bzw. Temperieren eines Wasserbads, wobei dieses wiederum zum Strecken von Paraffinschnitten im histologischen Labor eingesetzt wird.Generic devices are known in practice in a wide variety of embodiments. They are used for heating or tempering a water bath, which in turn is used for stretching paraffin sections in the histological laboratory.

Die aus der Praxis bekannten Vorrichtungen der gattungsbildenden Art sind insoweit problematisch, als die gewünschte Temperatur meist über mehrstufige Schalter nur in etwa vorgebbar ist. Nicht selten wird die Temperatur über ein externes Thermometer gemessen oder ist überhaupt keine Temperaturanzeige vorgesehen. Die bekannten Vorrichtungen sind daher in der Anwendung problematisch und haben nur einen geringen Bedienkomfort.The known from practice devices of the generic type are problematic insofar as the desired temperature is usually only about multi-stage switch specified. Not infrequently the temperature is measured by an external thermometer or no temperature display is provided at all. The known devices are therefore problematic in the application and have only a low ease of use.

Aus der WO 01/68014 A1 ist eine gattungsbildende Vorrichtung zum Erwärmen eines Gegenstands mittels Wasserbad bekannt. Die Vorrichtung umfasst ein Gehäuse und eine in das Gehäuse eingesetzte Wanne. Das Wasserbad ist mittels einer Elektroheizung temperierbar. Die Elektroheizung umfasst mindestens eine dem Boden der Wanne zugeordnete Heizplatte, wobei eine vorgegebene Wassertemperatur regelbar ist.From the WO 01/68014 A1 For example, a generic device for heating an article by means of a water bath is known. The device comprises a housing and a well inserted into the housing. The water bath can be tempered by means of an electric heater. The electric heater comprises at least one heating plate associated with the bottom of the tub, wherein a predetermined water temperature is controllable.

Wenngleich gemäß WO 01/68014 A1 eine Beleuchtung vorgesehen ist, handelt es sich dort um eine im Frontbereich des Gehäuses angeordnete Beleuchtung, die den Betriebszustand der Vorrichtung anzeigt. Eine weitere optische Anzeige ist innerhalb des Wasserbads vorgesehen, wobei es sich dort um einen chemisch wirkenden Indikator zur Ermittlung des Temperaturbereichs von geschmolzenem Paraffin handelt. Maßnahmen zur Begünstigung einer Begutachtung der Probenqualität sind der Druckschrift fremd.Although according to WO 01/68014 A1 a lighting is provided, there is a arranged in the front region of the housing lighting, the Indicates the operating state of the device. Another optical indicator is provided within the water bath, which is a chemical indicator for determining the temperature range of molten paraffin. Measures to favor an assessment of the sample quality are foreign to the document.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung zum Erwärmen eines Gegenstands mittels Wasserbad, insbesondere zum Strecken von pathologischen bzw. histologischen Schnitten, insbesondere von Paraffinschnitten vor einer mikroskopischen Untersuchung, derart auszugestalten und weiterzubilden, dass bei einfachster Konstruktion eine Maßnahme realisiert ist, die eine Beurteilung der Qualität einer im Wasserbad befindlichen Gewebsprobe zulässt.The present invention is based on the object of designing a device for heating an object by means of a water bath, in particular for stretching pathological or histological sections, in particular of paraffin sections, before a microscopic examination and further developing such that a measure is implemented with the simplest construction, which allows an assessment of the quality of a sample of tissue in a water bath.

Die voranstehende Aufgabe ist durch die Merkmale des Patentanspruchs 1 gelöst. Danach ist die gattungsbildende Vorrichtung dadurch gekennzeichnet, dass die Wanne mit einer wahlweise aktivierbaren Unterwasserbeleuchtung ausgestattet ist.The above object is solved by the features of claim 1. Thereafter, the generic device is characterized in that the tub is equipped with an optionally activatable underwater lighting.

Erfindungsgemäß ist die Wanne mit einer wahlweise aktivierbaren Beleuchtung, im Konkreten mit einer Unterwasserbeleuchtung, ausgestattet ist. Die Beleuchtung kann mindestens eine Diode als Leuchtmittel umfassen. In vorteilhafter Weise umfasst die Beleuchtung zwei unabhängig voneinander schaltbare Dioden, vorzugsweise zur Emission von weißem und von blauem Licht. Grundsätzlich ist es denkbar, dass die Beleuchtung als RGB-Beleuchtung mit einstellbaren Farben bzw. mit einstellbarer Wellenlänge ausgeführt ist. Die Beleuchtung ist vorzugsweise In den Seiten der Wanne ausgebildet, so dass ein Blenden der Bedienperson wirksam vermieden ist.According to the invention, the tub is provided with an optionally activatable lighting, in particular with underwater lighting. The lighting may comprise at least one diode as the lighting means. Advantageously, the illumination comprises two independently switchable diodes, preferably for the emission of white and blue light. In principle, it is conceivable that the illumination is designed as RGB illumination with adjustable colors or with an adjustable wavelength. The lighting is preferably formed in the sides of the trough, so that an aperture of the operator is effectively avoided.

Die Elektroheizung umfasst mindestens eine dem Boden der Wanne zugeordnete Heizplatte. Somit wird unmittelbar der Wannenboden flächig beheizt. Entsprechend der Vorkehrung der Heizplatte ist eine vorgebbare Wassertemperatur regelbar. Dies bedeutet, dass über den Betrieb hinweg die Wassertemperatur über einen Temperatursensor ermittelt wird und die Heizung entsprechend geregelt wird. Somit ist gewährleistet, dass das Wasserbad stets die gewünschte Temperatur aufweist und zwar ungeachtet der Umgebungstemperatur, des Durchsatzes und der Betriebsdauer.The electric heater comprises at least one heating plate associated with the bottom of the tub. Thus, the bottom of the tub is heated directly. According to the provision of the heating plate, a predeterminable water temperature is adjustable. This means that over the operation, the water temperature is determined by a temperature sensor and the heating is regulated accordingly. This ensures that the water bath always has the desired temperature regardless of the ambient temperature, throughput and operating time.

In vorteilhafter Weise umfasst die Elektroheizung mindestens zwei oder mehrere Heizplatten, wobei der Bodenbereich der Wanne entsprechend sektioniert sein kann. Die Heizplatten können dabei gemeinsam oder einzeln aktiviert werden. Auch ist es denkbar, dass die Heizplatten in der Mitte des Bodenbereichs eine kreisförmige Gestalt und darum herum kreisringförmige Segmente umfassen. Auch hier ist eine gemeirisame oder einzelne Aktivierung entsprechend dem Energiebedarf möglich.Advantageously, the electric heater comprises at least two or more heating plates, wherein the bottom portion of the pan can be sectioned accordingly. The heating plates can be activated together or individually. It is too conceivable that the heating plates in the center of the bottom portion of a circular shape and around it comprise annular segments. Again, a gemeirisame or individual activation according to the energy requirement is possible.

Grundsätzlich ist es denkbar, dass die Heizplatten, ungeachtet ihrer konkreten Ausgestaltung, integrale Bestandteile des Bodens der Wanne sein können. Im Hinblick auf eine einfache Konstruktion ist es von Vorteil, wenn die Heizplatten von unten mit dem Boden der Wanne verbunden, vorzugsweise verklebt sind. Dabei ist es von ganz besonderem Vorteil, wenn die Heizplatten mittels eines Klebstoffs mit hoher Wärmeleitfähigkeit verklebt sind, um nämlich die Wärmeleitung in das zu beheizende Wasser hinein zu begünstigen.In principle, it is conceivable that the heating plates, regardless of their concrete design, can be integral components of the bottom of the tub. With regard to a simple construction, it is advantageous if the heating plates are connected from below to the bottom of the tub, preferably glued. It is of very particular advantage if the heating plates are bonded by means of an adhesive with high thermal conductivity, namely to promote the heat conduction into the water to be heated inside.

Des Weiteren ist es denkbar, dass die Seitenwandungen der Wanne mit Heizelementen versehen sind, wobei es sich bei diesen Heizelementen ebenso um Heizplatten, aber auch um Heizrohre, Heizkabel, etc. handeln kann.Furthermore, it is conceivable that the side walls of the tub are provided with heating elements, wherein these heating elements may also be heating plates, but also heating pipes, heating cables, etc.

Das Beheizen des Wasserbads wird dadurch begünstigt, dass die Wandung der Wanne im Bodenbereich so dünn wie möglich ausgeführt ist, vorzugsweise eine Dicke von etwa 1 mm aufweist. Mit anderen Worten sollte der Bodenbereich so dünn ausgeführt sein, dass er gerade noch hinreichend stabil ist, jedoch einen hervorragenden Wärmeübergang von der Heizeinrichtung bzw. den Heizelementen in das Wasser gewährleistet.The heating of the water bath is facilitated by the fact that the wall of the tub in the bottom area is made as thin as possible, preferably has a thickness of about 1 mm. In other words, the floor area should be made so thin that it is just barely stable, but ensures excellent heat transfer from the heater or the heating elements in the water.

In Bezug auf die Ausgestaltung bzw. Fertigung des Gehäuses ist es denkbar, dass dieses als monolithischer Block gefertigt ist. Dabei kann das Gehäuse aus einem Aluminiumblock gefertigt sein. Die Oberfläche des Gehäuses ist vorzugsweise hell eloxiert.With regard to the design or production of the housing, it is conceivable that this is made as a monolithic block. In this case, the housing may be made of an aluminum block. The surface of the housing is preferably lightly anodized.

Die im Gehäuse angeordnete bzw. dort befestigte Wanne kann aus Aluminium gefertigt sein. Die Oberfläche der Wann kann ebenfalls eloxiert sein, wobei es sich hier anbietet, die Oberfläche der Wanne dunkel, insbesondere schwarz, zu eloxieren, um nämlich Reflexionen innerhalb der Wanne zu vermeiden.The arranged in the housing or fixed there well can be made of aluminum. The surface of the When can also be anodized, it being advisable to anodize the surface of the tub dark, especially black, namely to avoid reflections within the tub.

In ganz besonders vorteilhafter Weise weist die Wanne eine zumindest teilweise die Wanne umlaufende Ablagefläche zum Ablegen von Proben, Objektträgern, etc. auf. Dabei ist es denkbar, dass die Ablagefläche die Wanne insgesamt umläuft. Die Ablagefläche kann eine erhebliche Breite aufweisen, nämlich eine Breite im Bereich von 30 mm bis 70 mm, vorzugsweise von etwa 50 mm. Die Vorkehrung der Ablagefläche bietet der Bedienperson eine ganz erhebliche Sicherheit und Erleichterung bei der Arbeit.In a particularly advantageous manner, the tub has an at least partially the tub rotating storage area for storing samples, slides, etc. It is conceivable that the storage area rotates the tub altogether. The shelf may have a considerable width, namely a width in the range of 30 mm to 70 mm, preferably of about 50 mm. The provision of the shelf offers the operator a very significant safety and relief at work.

In weiter vorteilhafter Weise ist die Ablagefläche durch einen umlaufenden, gegenüber der Ablagefläche erhabenen äußeren Rand begrenzt, damit nämlich keine Flüssigkeit auf die Unterlage bzw. auf den Tisch gelangen kann.In a further advantageous manner, the support surface is limited by a peripheral, with respect to the shelf raised outer edge, namely, so that no liquid can get onto the surface or on the table.

Des Weiteren ist es denkbar, dass die Ablage oder der Rand eine Markierung für die Position eines Aus-/Ablaufs aufweist, nämlich als Orientierung für die Bedienperson.Furthermore, it is conceivable that the tray or the edge has a mark for the position of an outflow / discharge, namely as an orientation for the operator.

Die Ablagefläche kann ebenfalls beheizt sein. Die Heizung der Ablagefläche kann unabhängig von der Heizung im Bodenbereich aktivierbar und regelbar sein. Wesentlich ist jedenfalls, dass auch die Ablagefläche zum Temperieren bzw. Trocknen darauf befindlicher Objekte dienen kann.The shelf can also be heated. The heating of the storage area can be activated and regulated independently of the heating in the floor area. In any case, it is essential that the storage surface can also serve for tempering or drying objects located thereon.

Das Gehäuse und/oder die Wanne können mit weiteren funktionalen Einrichtungen bzw. Einheiten ausgestattet sein. So ist es bspw. denkbar, dass die Wanne mit einer optischen und/oder elektrischen bzw. elektronischen Wasserstandsanzeige ausgestattet ist. Eine optische Wasserstandsanzeige könnte über ein von außerhalb des Gehäuses sichtbares Fenster in der Wanne realisiert sein. Eine elektrische bzw. elektronische Wasserstandsanzeige könnte über ein Display am Gehäuse realisiert sein.The housing and / or the tub may be equipped with other functional devices or units. For example, it is conceivable that the tub is equipped with an optical and / or electrical or electronic water level indicator. An optical water level indicator could be realized via a window visible from outside the housing in the tub. An electrical or electronic water level indicator could be realized via a display on the housing.

Bereits zuvor ist erwähnt worden, dass das Gehäuse mit einer Anzeige bzw. mit einem Display ausgestattet sein kann. So könnte das Gehäuse eine vordere Sichtfläche mit einer Anzeige und mit separaten oder integrierten Bedienelementen aufweisen. Sofern die Bedienelemente in die Anzeige integriert sind, könnte die Anzeige, mit den Bedienelementen, als Touch-Panel ausgeführt sein.It has already been mentioned that the housing can be equipped with a display or with a display. Thus, the housing could have a front viewing surface with a display and with separate or integrated controls. If the controls are integrated into the display, the display, with the controls could be designed as a touch panel.

Im Gehäuse kann des Weiteren eine Elektronik zur Temperaturregelung und zur Regelung weiterer Parameter bzw. Größen vorgesehen sein. Es ist selbstverständlich, dass die Elektronik Signale über eine Sensorik bzw. einen Sender erhält, der in der Wandung der Wanne angeordnet bzw. dort vorgesehen ist. Jedenfalls wird die Temperatur auf einen vorgebbaren bzw. einstellbaren Wert geregelt, und zwar ungeachtet äußerer Einflüsse.In addition, electronics for temperature control and for regulating further parameters or variables may be provided in the housing. It goes without saying that the electronics receive signals via a sensor or a transmitter, which is arranged in the wall of the tub or provided there. In any case, the temperature is regulated to a predeterminable or adjustable value, regardless of external influences.

In weiter vorteilhafter Weise umfasst die Elektronik eine Notaus-Funktion dergestalt, dass die Heizung bei Unterschreiten eines vorzugsweise vorgebbaren unterenIn a further advantageous manner, the electronics comprise an emergency stop function in such a way that the heater falls below a preferably predeterminable lower limit

Wasserstandes in der Wanne deaktiviert wird. Auch ist es denkbar, dass bei Unterschreiten eines unteren Wasserstandes ein optisches und/oder akustisches Signal erfolgt, wonach ein Nachfüllen des Wassers erforderlich ist. Auch ist es denkbar, dass die Vorrichtung mit einem Wasseranschluss versehen ist, der den Wasserstand automatisch regelt. In einem solchen Fall wird die Füllmenge detektiert und kann ständig nachgespeist werden.Water level in the tub is deactivated. It is also conceivable that falls below a lower water level, an optical and / or acoustic signal takes place, after which a refilling of the water is required. It is also conceivable that the device is provided with a water connection, which automatically regulates the water level. In such a case, the capacity is detected and can be constantly fed.

In Bezug auf die Montage der Vorrichtung ist es von Vorteil, wenn die Wanne in das Gehäuse gesteckt und dort fixiert ist. Es bietet sich an, die Wanne von oben in das Gehäuse einzusetzen, wobei das Gehäuse dazu einen zur Auflage dienenden inneren Rand umfasst. Zur sicheren Montage ist die Wanne mit dem Gehäuse vorzugsweise von unten verschraubt. Von oberhalb der Vorrichtung sind im Rahmen einer solchen Ausgestaltung keinerlei Befestigungsmittel erkennbar.With respect to the mounting of the device, it is advantageous if the trough is inserted into the housing and fixed there. It is advisable to insert the trough from above into the housing, wherein the housing for this purpose comprises a serving for supporting inner edge. For safe installation, the tub is preferably bolted to the housing from below. From above the device, no fastening means are recognizable in the context of such a configuration.

Schließlich ist eine Bodenabdeckung zum bodenseitigen Verschließen des Gehäuses vorgesehen, wobei die Bodenabdeckung mit dem Gehäuse verschraubt ist. Vorzugsweise sind an den Verschraubungen Lagerpuffer zum sicheren Aufstellen der Vorrichtung vorgesehen.Finally, a bottom cover is provided for the bottom-side closing of the housing, wherein the bottom cover is screwed to the housing. Preferably, bearing buffers are provided for secure installation of the device at the screw connections.

Es gibt nun verschiedene Möglichkeiten, die Lehre der vorliegenden Erfindung in vorteilhafter Weise auszugestalten und weiterzubilden. Dazu ist einerseits auf die dem Patentanspruch 1 nachgeordneten Patentansprüche und andererseits auf die nachfolgende Erläuterung eines Ausführungsbeispiels der Erfindung anhand der Zeichnung zu verweisen. In Verbindung mit der Erläuterung des bevorzugten Ausführungsbeispiels der Erfindung anhand der Zeichnung werden auch im Allgemeinen bevorzugte Ausgestaltungen und Weiterbildungen der Lehre erläutert. In der Zeichnung zeigen

Fig. 1
in einer schematischen Ansicht ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung und
Fig. 2
den Gegenstand aus Fig. 1 mit den wesentlichen Bestandteilen in Sprengdarstellung.
There are now various possibilities for designing and developing the teaching of the present invention in an advantageous manner. For this purpose, on the one hand to the patent claim 1 subordinate claims and on the other hand, to refer to the following explanation of an embodiment of the invention with reference to the drawings. In conjunction with the explanation of the preferred embodiment of the invention with reference to the drawing, generally preferred embodiments and developments of the teaching are explained. In the drawing show
Fig. 1
in a schematic view of an embodiment of a device according to the invention and
Fig. 2
the object out Fig. 1 with the essential components in exploded view.

Fig. 1 zeigt in schematischer Ansicht ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zum Erwärmen eines Gegenstands mittels Wasserbad, nämlich eine Vorrichtung zum Erwärmen von Paraffinschnitten im pathologischen/histologischen Labor. Die Vorrichtung umfasst ein Gehäuse 1 und eine in das Gehäuse 1 eingesetzte Wanne 2. Das Wasserbad ist mittels einer Elektroheizung temperierbar. Fig. 1 shows a schematic view of an embodiment of an inventive device for heating an object by means of a water bath, namely a device for heating paraffin sections in the pathological / histological Laboratory. The device comprises a housing 1 and a well 2 inserted into the housing 1. The water bath can be tempered by means of an electric heater.

Die Elektroheizung umfasst mindestens eine dem Boden 3 der Wanne 2 zugeordnete Heizplatte 4, wobei in Fig. 2 die Heizplatte lediglich angedeutet ist. Mit der Elektroheizung ist eine vorgebbare Wassertemperatur regelbar.The electric heater comprises at least one of the bottom 3 of the tub 2 associated heating plate 4, wherein in Fig. 2 the heating plate is merely indicated. With the electric heater, a predeterminable water temperature is adjustable.

Gemäß der Darstellung in Fig. 2 sind zwei voneinander unabhängige Heizplatten 4 vorgesehen. Die beiden Heizplatten 4 können wahlweise gemeinsam oder einzeln aktiviert werden. Sie werden von unten mit dem Boden 3 der Wanne 2 verklebt, und zwar mit einem Klebstoff mit hoher Wärmeleitfähigkeit.As shown in Fig. 2 two independent heating plates 4 are provided. The two heating plates 4 can optionally be activated together or individually. They are glued from below to the bottom 3 of the tub 2, with an adhesive with high thermal conductivity.

An dieser Stelle sei angemerkt, dass die Wandung der Wanne 2 im Bodenbereich so dünn wie möglich ausgeführt ist, vorzugsweise mit einer Dicke im Bereich von 1 mm oder gar weniger.It should be noted at this point that the wall of the tub 2 in the bottom area is made as thin as possible, preferably with a thickness in the range of 1 mm or even less.

Das Gehäuse 1 ist insgesamt als monolithischer Block aus einem Aluminiumblock gefertigt. Die Oberfläche des Gehäuses 1 ist hell eloxiert.The housing 1 is made as a whole as a monolithic block of an aluminum block. The surface of the housing 1 is lightly anodized.

Die Wanne 2 ist ebenfalls aus Aluminium gefertigt und dunkel bzw. schwarz eloxiert.The tub 2 is also made of aluminum and dark or black anodized.

Fig. 1 lässt des Weiteren erkennen, dass die Wanne 2 mit einer umlaufenden Ablagefläche 5 ausgestattet ist, die zur Ablage von Proben, Probenhaltern, etc. dient. Die Ablagefläche 5 ist beheizt. Sie hat eine Breite von etwa 50 mm. Fig. 1 Furthermore, it can be seen that the trough 2 is equipped with a peripheral storage surface 5, which serves to deposit samples, sample holders, etc. The shelf 5 is heated. It has a width of about 50 mm.

Des Weiteren ist ein die Ablagefläche 5 umlaufender Rand 6 vorgesehen, der einerseits aufgelegte Teile gegen Herunterfallen sichert und andererseits verhindert, dass Flüssigkeit seitlich an der Gehäusewandung herunterlaufen kann. Verschmutzungen sind dadurch vermieden und ein hohes Maß an Betriebssicherheit ist realisiert.Furthermore, the storage area 5 circumferential edge 6 is provided, which ensures on the one hand launched parts against falling and on the other hand prevents liquid can run down the side of the housing wall. Dirt is avoided and a high degree of operational safety is realized.

Die Ablagefläche 5 weist des Weiteren eine Markierung 7 für die Position eines Aus-/Ablaufs auf. Der Ablauf kann in die Wanne 2 hinein oder in einen im Gehäuse 1 angeordneten, in den Figuren nicht gezeigten Ablaufbehälter erfolgen.The storage surface 5 further has a mark 7 for the position of an outflow / discharge. The process can take place in the trough 2 or into a drain container, not shown in the figures, arranged in the housing 1.

Fig. 1 zeigt des Weiteren, dass im Frontbereich der Vorrichtung in einer geneigten Fläche 8 ein Display 9 als Touch-Panel vorgesehen ist. Das Display 9 umfasst somit eine Anzeigeeinrichtung und Bedienelemente in einem. Über das Touch-Panel lassen sich Wassertemperaturen vorgeben und kann auch ein Programm über einen internen Prozessor aktiviert werden, bis hin zu einem automatischen Abschalten der Vorrichtung. Fig. 1 further shows that in the front region of the device in a sloping surface 8, a display 9 is provided as a touch panel. The display 9 thus comprises a display device and operating elements in one. Water temperatures can be set via the touch panel and can also be programmed via a internal processor can be activated, up to an automatic shutdown of the device.

Fig. 2 zeigt wesentliche Teile der erfindungsgemäßen Vorrichtung in Sprengdarstellung. Das Gehäuse 1 weist einen inneren Rand 10 zum Einsetzen bzw. Auflegen der Wanne 2 auf, wobei die Wanne 2 von unten mit dem Gehäuse 1 verschraubt wird. Des Weiteren sind zwei Heizplatten 4 vorgesehen, die von unten an den Boden 3 der Wanne 2 mittels besonderem Klebstoff geklebt werden, nämlich mittels Klebstoff mit hoher Wärmeleitfähigkeit. Fig. 2 shows essential parts of the device according to the invention in exploded view. The housing 1 has an inner edge 10 for insertion or placement of the trough 2, wherein the trough 2 is screwed from below to the housing 1. Furthermore, two heating plates 4 are provided, which are glued from below to the bottom 3 of the tub 2 by means of special adhesive, namely by means of adhesive with high thermal conductivity.

Einer einfachen Darstellung halber wurde auf eine Darstellung der Elektronik verzichtet. In Fig. 2 ist lediglich angedeutet, dass eine Gerätebuchse 11 zum elektrischen Anschluss der Vorrichtung vorgesehen ist. Von dort aus wird die gesamte Elektrik/Elektronik mit Strom versorgt, wobei dies keine erfindungsgemäße Bedeutung hat.For the sake of simplicity, an illustration of the electronics has been omitted. In Fig. 2 is merely indicated that a device socket 11 is provided for electrical connection of the device. From there, the entire electrical / electronics is supplied with electricity, and this has no significance according to the invention.

In der Wanne 2 ist eine Ausnehmung 12 vorgesehen, die über einen Glaseinsatz 13, eine Dichtung 14 und eine Glasabdeckung 15 geschlossen ist. Diese Vorkehrung ermöglicht eine visuellen Kontrolle des Wasserstands, wobei diese über ein Sichtfenster 16 im Display 9 bzw. am Display 9 erfolgt. Das Display 9 ist über einen Rahmen 17 in eine Ausnehmung 18 im Gehäuse befestigt, wobei das Display 9 durch eine besondere Folie 19 überdeckt ist.In the tub 2, a recess 12 is provided, which is closed by a glass insert 13, a seal 14 and a glass cover 15. This provision allows a visual control of the water level, which is done via a viewing window 16 in the display 9 and 9 on the display. The display 9 is fastened via a frame 17 in a recess 18 in the housing, wherein the display 9 is covered by a special film 19.

Weiter zeigt Fig. 2, dass das Gehäuse 1 von unten mit einem Bodenblech 20 geschlossen ist, wobei von unten Lagerpuffer 21 zum sicheren Stand vorgesehen sind.Next shows Fig. 2 in that the housing 1 is closed from below with a floor panel 20, wherein bearing buffers 21 are provided for safe standing from below.

Schließlich sei angemerkt, dass das voranstehend erörterte Ausführungsbeispiel lediglich der beispielhaften Erläuterung der erfindungsgemäßen Vorrichtung dient, diese jedoch nicht auf das Ausführungsbeispiel einschränkt.Finally, it should be noted that the above-discussed embodiment is merely illustrative of the device according to the invention, but this does not limit the embodiment.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gehäusecasing
22
Wannetub
33
Boden der WanneBottom of the tub
44
Heizplatteheating plate
55
Ablageflächeshelf
66
Rand (der Ablagefläche)Edge (the shelf)
77
Markierung (in der Ablagefläche)Marking (in the storage area)
88th
geneigte Fläche (vorne am Gehäuse)inclined surface (at the front of the housing)
99
Displaydisplay
1010
innerer Rand (im Gehäuse)inner edge (in the case)
1111
Gerätebuchse (Stromanschluss)Device socket (power connection)
1212
Ausnehmung (in der Wanne)Recess (in the tub)
1313
Glaseinsatz (zum Schließen der Ausnehmung 12)Glass insert (for closing the recess 12)
1414
Dichtung (am Glaseinsatz 13)Seal (on glass insert 13)
1515
Glasabdeckung (zur Befestigung des Glaseinsatzes 13)Glass cover (for fixing the glass insert 13)
1616
Sichtfenster (im Gehäuse)Viewing window (in the housing)
1717
Rahmen für DisplayFrame for display
1818
Ausnehmung (im Gehäuse)Recess (in the housing)
1919
Folie (zum Abdecken des Displays)Foil (to cover the display)
2020
Bodenblech, BodenabdeckungFloor panel, floor cover
2121
Lagerpufferstorage buffer
2222
Displaydisplay

Claims (15)

  1. Device for heating an object by means of a water bath, in particular for stretching pathological or histological sections, in particular paraffin sections prior to microscopic examination, having a housing (1) and a vessel (2) which is inserted into the housing (1), wherein the water bath can be temperature-controlled by means of an electric heating unit, wherein the electric heating unit comprises at least one heating plate (4) which is associated with the base (3) of the vessel (2), and wherein a predeterminable water temperature can be adjusted,
    characterised in that the vessel (2) is provided with underwater illumination which can be selectively activated.
  2. Device according to claim 1, characterised in that the electric heating unit comprises at least two or more heating plates (4), wherein the heating plates (4) can be activated together.
  3. Device according to claim 1 or claim 2, characterised in that the heating plates (4) are integral components of the base (3) of the vessel (2),
    or in that the heating plates (4) are connected, preferably adhesively bonded, from below to the base (3) of the vessel (2),
    wherein the heating plates (4) can be adhesively bonded by means of an adhesive having a high thermal conductivity.
  4. Device according to any one of claims 1 to 3, characterised in that the side walls of the vessel (2) are provided with heating elements,
    wherein the heating elements may be heating plates (4), heating pipes or heating cables.
  5. Device according to any one of claims 1 to 4, characterised in that the wall of the vessel (2) is constructed to be as thin as possible in the base region, preferably having a thickness in the region of approximately 1 mm.
  6. Device according to any one of claims 1 to 5, characterised in that the housing (1) is produced as a monolithic block,
    preferably from an aluminium block,
    the surface of the housing (1) preferably being bright anodised.
  7. Device according to any one of claims 1 to 6, characterised in that the vessel (2) is produced from aluminium,
    wherein the surface of the vessel (2) is preferably dark, in particular black, anodised.
  8. Device according to any one of claims 1 to 7, characterised in that the vessel (2) has a depositing face (5) which extends at least partially around the vessel (2) for depositing samples, object carriers, etcetera,
    wherein the depositing face (5) may extend around the vessel (2) in its entirety and may have a width in the range from 30 mm to 70 mm, preferably from approximately 50 mm.
  9. Device according to claim 8, characterised in that the depositing face (5) is delimited by a peripheral outer edge (6) which is raised with respect to the depositing face (5), and/or in that the depositing face (5) or the edge (6) has a marking (7) for the position of an output/discharge.
  10. Device according to claim 8 or claim 9, characterised in that the depositing face (5) is heated,
    wherein the heating of the depositing face (5) may be actuatable and adjustable independently of the heating in the base region.
  11. Device according to any one of claims 1 to 10, characterised in that the vessel (2) is provided with an optical and/or electrical or electronic water level display, preferably by means of a window or a display which is visible from the outer side of the housing (1),
    wherein the illumination may comprise at least one diode as an illumination means and/or wherein the illumination may comprise two diodes which can be switched independently of each other, preferably in order to emit white and blue light, and/or in that the illumination may be constructed as an RGB illumination with adjustable colours or with an adjustable wavelength.
  12. Device according to claim 11, characterised in that the illumination is constructed in the sides of the vessel (2).
  13. Device according to any one of claims 1 to 12, characterised in that the housing (1) has a front viewing face with a display and operating elements,
    wherein the operating elements may be integrated in the display and the display may preferably be constructed as a touch panel.
  14. Device according to any one of claims 1 to 13, characterised in that an electronic system is provided in the housing (1) for temperature regulation,
    wherein the temperature regulation may be configured in such a manner that the water bath, after approximately from 2 to 5 minutes, preferably after 3 minutes, has already reached the adjusted operating temperature, preferably in the range from 40°C to 45°C, wherein an individual adjustment and/or change of the operating temperature is possible,
    and/or wherein the electronic system may comprise an emergency stop function, which deactivates the heating unit when a value falls below a lower water level which can preferably be predetermined in the vessel (2).
  15. Device according to any one of claims 1 to 14, characterised in that the vessel (2) is inserted into the housing (1) and is fixed at that location,
    wherein the vessel (2) can be screwed to the housing (1), preferably from below, and/or
    wherein a base cover (20) is provided for lower-side closure of the housing (1).
EP09735392.4A 2008-04-21 2009-04-20 Device for heating an object by means of a water bath Active EP2268980B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008020002 2008-04-21
DE102008023660A DE102008023660B4 (en) 2008-04-21 2008-05-15 Device for heating an object by means of a water bath
PCT/DE2009/000504 WO2009129777A2 (en) 2008-04-21 2009-04-20 Device for heating an object by means of a water bath

Publications (2)

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EP2268980A2 EP2268980A2 (en) 2011-01-05
EP2268980B1 true EP2268980B1 (en) 2015-07-01

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EP (1) EP2268980B1 (en)
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WO (1) WO2009129777A2 (en)

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Also Published As

Publication number Publication date
WO2009129777A3 (en) 2011-10-27
DE102008023660B4 (en) 2010-02-11
DE102008023660A1 (en) 2009-12-03
WO2009129777A2 (en) 2009-10-29
US20110031232A1 (en) 2011-02-10
EP2268980A2 (en) 2011-01-05
US8642930B2 (en) 2014-02-04

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