EP1361917A1 - Device for mixing and homogenizing materials in laboratory test container with a stirring element - Google Patents

Device for mixing and homogenizing materials in laboratory test container with a stirring element

Info

Publication number
EP1361917A1
EP1361917A1 EP01969125A EP01969125A EP1361917A1 EP 1361917 A1 EP1361917 A1 EP 1361917A1 EP 01969125 A EP01969125 A EP 01969125A EP 01969125 A EP01969125 A EP 01969125A EP 1361917 A1 EP1361917 A1 EP 1361917A1
Authority
EP
European Patent Office
Prior art keywords
laboratory test
test vessel
cover
vessel
mixing
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.)
Granted
Application number
EP01969125A
Other languages
German (de)
French (fr)
Other versions
EP1361917B1 (en
Inventor
Franz G. Bucher
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.)
Miltenyi Biotec Swiss AG
Original Assignee
Medic Tools AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medic Tools AG filed Critical Medic Tools AG
Publication of EP1361917A1 publication Critical patent/EP1361917A1/en
Application granted granted Critical
Publication of EP1361917B1 publication Critical patent/EP1361917B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082—Test tubes per se
    • B01L3/50825—Closing or opening means, corks, bungs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/86—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis co-operating with deflectors or baffles fixed to the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
    • B01F33/4534—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements using a rod for supporting the stirring element, e.g. stirrer sliding on a rod or mounted on a rod sliding in a tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/8305—Devices with one shaft, provided with mixing and milling tools, e.g. using balls or rollers as working tools; Devices with two or more tools rotating about the same axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/321—Disposition of the drive
    • B01F35/3213—Disposition of the drive at the lower side of the axis, e.g. driving the stirrer from the bottom of a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/60—Safety arrangements
    • B01F35/605—Safety devices concerning the operation of the mixer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
    • B01F33/83611—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by cutting

Definitions

  • the invention relates to a device for mixing and homogenizing materials, in particular infectious or chemically aggressive materials, in a laboratory test vessel.
  • Magnetic stirrers and mechanical stirrers are generally known and used in laboratory operations. When crushing infectious or chemically aggressive materials in non-hermetically sealed containers, there is a high risk of infection and / or contamination from uncontrolled splashes that can escape through the opening of the laboratory test vessel, through unintentional tipping over of the laboratory test vessel and through the use of reusable mixers. This is particularly the case with test tubes and mixers known for this.
  • a lid is provided, with which the laboratory test vessel is hermetically sealed and materials in the laboratory test vessel are processed, in particular mixed and homogenized, improves occupational safety of the user performing the processing is significantly increased. This means that even infectious tissue fragments can be treated safely. A complete homogenization of the tissue fragments can be achieved in a safe manner by the hermetic sealing of the laboratory test vessel.
  • the lid is advantageously designed as a disposable lid, so that it is disposed of immediately after use, and thus contamination during further work in the laboratory is reliably avoided.
  • FIG. 1 shows a schematic, partially sectioned side view of a first exemplary embodiment of the invention
  • FIG. 2 shows a schematic top view of the disposable cover of the first exemplary embodiment according to FIG. 1,
  • FIG. 3 shows the disposable cover from FIG. 1
  • FIG. 4 shows an exploded view of the drive from FIG. 1 used in the disposable cover
  • FIG. 5 shows a schematic, partially sectioned side view of a second exemplary embodiment of the invention
  • FIG. 6 shows a schematic top view of the one-way cover of the second exemplary embodiment according to FIG. 5,
  • FIG. 7 shows the disposable cover from FIG. 5,
  • FIG. 8 is an exploded view of the drive from FIG. 5 used in the one-way cover
  • FIG. 9 is a schematic partially sectioned side view of a third embodiment of the invention.
  • FIG. 10 is a schematic plan view of the one-way cover of the third embodiment according to FIG. 9,
  • FIG. 11 shows the disposable cover from FIG. 9, 12 shows a schematic sectional side view of a disposable cover according to a fourth exemplary embodiment of the invention, and FIG. 13 shows a plan view of the disposable cover from FIG. 12.
  • Fig. 1 shows a schematic partially sectioned side view of a first embodiment of the invention.
  • a laboratory test vessel is provided with the reference number 20. This is a cylindrical tube 18 with a conically tapering tip 21.
  • the interior 17 of the laboratory test vessel 20 is filled with the materials 37 to be mixed.
  • the laboratory test vessel 20 is then closed with the one-way screw cap 10 in use and then turned upside down.
  • one-way screw cap or one-way snap cap 10 of the hermetically sealable laboratory test vessel 20 there is a recessed, square-edged plastic or metal bar 11, provided with radial and axial cutting edges 29, on the cutting edges 28 of the cutting ribs
  • This bar 11 is made using the axis
  • the laboratory test vessel 20 with the materials to be mixed and homogenized is non-positively placed on an external drive via the coupling ring 14 when the vessel is upside down as shown in FIG. 1.
  • the substances and liquids located in the interior 17 of the vessel 20 are sucked axially through the bar 11, that is to say along the longitudinal axis 22 of the laboratory test vessel 20, and are flung away radially. They are under the action of cutting on the peripheral cutting ribs 12 by the Slits ejected.
  • the material to be mixed is crushed, mixed, homogenized and then deflected upwards on the mixer wall 15, which extends in each case between the cutting ribs 12.
  • the sealing ring 16 placed around the axis 13 prevents the liquid from escaping.
  • the rotational energy is mechanically transmitted from the outside to the coupling ring 14 and the axis 13 to the beam 11.
  • the speed is material-specific for optimal homogenization.
  • the sealing ring 16 can be realized by a sealing lip.
  • FIG. 2 shows a schematic plan view of the one-way cover 10 of the first exemplary embodiment according to FIG. 1.
  • the same features are provided with the same reference symbols in all of the figures.
  • the cutting lips 12 are formed by an element arranged in a wave shape on the circumference, which here comprises nine lips.
  • the beam 11 can for example be U-shaped, open at the bottom, so that there are two vertical cutting edges 29 on both sides of the beam 11. These two cutting edges 29 each stand at a short distance from the eighty (two times nine) cutting edges 28 of the cutting lips 12.
  • FIG. 3 shows an isolated representation of the one-way cover 10 from FIG. 1, in which all elements essential for the transmission of the rotary movement are inserted into the body 3.
  • FIG. 4 shows an exploded view of the drive from FIG. 1 used in the one-way cover 10, consisting of the beam 11 with an integrally connected axis 13, the sealing ring 16 and the coupling ring 14, all of which are arranged around the longitudinal axis 22 of the device ,
  • Fig. 5 shows a schematic partially sectioned side view of a second embodiment of the invention.
  • the disposable lid 10 has a body 3 which has a circumferential groove 24 into which the laboratory test vessel 20 can be inserted or screwed.
  • a sealing element 1 is inserted, which at the same time hermetically seals the interior 9 of the laboratory test vessel 20 from the exterior.
  • the sealing element 1 also has a perforated disc which is arranged transversely to the longitudinal axis 22 and forms a cavity 30 with respect to the body 3, which forms a cylindrical cage.
  • a turnstile 2 is arranged in this cavity 30.
  • the turnstile 2 has radial 39 and peripheral 38 cutting edges which are guided past the corresponding cutting edges 31 of the inlet holes 25.
  • the laboratory test vessel 20 with the materials to be mixed is then closed with the one-way lid 10, turned upside down and non-positively placed on the external drive via the drive axis 4 and the connection 6.
  • a sealing lip 5 prevents the liquid from escaping.
  • the rotational energy is transferred mechanically from the outside to the hexagon socket 6 and the axis 4.
  • the speed is also determined here material-specific for optimal homogenization.
  • FIG. 6 shows a schematic plan view of the one-way cover of the second exemplary embodiment according to FIG. 5.
  • the sealing element 1 has four openings 25 in the pane area, which are at a radial distance from the axis 22 and at an angular distance from 90 degrees to each other.
  • the cutting element is a turnstile 2 with four arms 32.
  • corresponding elements with three or, for example, five openings / arms are also possible.
  • the turnstile 2 can be a square plastic cross.
  • FIG. 7 shows a representation of the one-way cover from FIG. 5.
  • FIG. 8 shows an exploded view of the drive from FIG. 5 used in the one-way cover 10, which consists of the four elements. It is indicated here with the reference symbol that the laboratory test vessel 20 is screwed into the circumferential groove, which has a corresponding thread 33 on its outside.
  • the drive axis 4 can be thermally conductive, so that thermal energy can be introduced into the laboratory test vessel 20 via this drive axis 4 or can be dissipated to the outside thereof. It can also be provided that electrical energy is introduced into the laboratory test vessel 20 via the drive axis 4 and / or that electrochemical sensors are used.
  • FIG. 9 shows a schematic, partially sectioned side view of a third exemplary embodiment of the invention.
  • a rotary vane or rotor 13 is integrated in the cover 10 in a cylindrical cage 42.
  • the cylindrical cage 12 is inserted in a body 41 of the cover 10 and has four radially oriented, oval openings 26, through which the material to be homogenized is guided into the cavity 30 in the cage 42 and is cut off there by the rotor 13.
  • the inert rotor 13 which can be formed from a bar magnet 43 or comprises this as a core, has radial 39 and peripheral 38 cutting edges which are guided past the corresponding cutting edges 31, that is to say the edges of the openings 26, of the cylindrical cage 42.
  • the laboratory test vessel 20 with the tissue material 27 is placed in the drive standing on the cover, so that a fill level 37 results and the material is in contact with the cage 42 and the rotor 13.
  • the known drive not shown in the drawings, comprises a further magnetic rotor with which the rotational energy is magnetically is transmitted table or electromagnetic. The magnetic field strength is dimensioned so that an optimal torque for the homogenization is transmitted.
  • FIG. 10 shows a schematic top view of the disposable lid 10 of the third exemplary embodiment according to FIG. 9 and FIG. 11 shows a representation of the disposable lid from FIG. 9.
  • the circular groove 24 allows a fit of the laboratory test vessel 20 in that extends beyond a form-fitting seat the lid 11.
  • the magnetic rod 13 is constructed asymmetrically, so that the flow-optimized construction generates a central liquid flow from top to bottom in one direction of rotation and a lateral liquid flow along the wall of the laboratory test vessel 20 from top to bottom in the other direction of rotation , By reversing the direction of rotation, the suction and exhaust effect is changed.
  • FIG. 12 shows a schematic sectional side view of a one-way cover according to a fourth exemplary embodiment of the invention
  • FIG. 13 shows a plan view of the one-way cover from FIG. 12.
  • the connection is also shown here.
  • the differences from the exemplary embodiment from FIG. 1 are in particular as follows.
  • the Schneilkupplungsring 14 has teeth on its underside which engage teeth 53 of a drive shaft 54.
  • the lower edge 55 of the body 3 is in particular pulled down so far that the cover 10 can be placed flat without the teeth of the quick coupling ring 14 protruding.
  • a ball bearing for the shaft 13 is designated by the reference number 59.
  • a ball bearing is not required for an inexpensive manufacture of the device as a one-way cover 10.
  • slide bearing shown drive shaft 13 are replaced, the seal being provided by an inserted O-ring. This is particularly advantageous because in the case of a disposable cover 10, the bearing is loaded only once and then only for a short time and has to endure this load.
  • the cage 52 here simultaneously forms cutting edges which do not consist of openings as in the second exemplary embodiment and also do not consist of a purely lateral element as in the first exemplary embodiment.
  • the cage 52 has downwardly drawn lugs 56 which enclose the beam 11. This is equipped with two arms, but a turnstile 2 with more arms can also be provided.
  • the cutting edges 57 can be seen in particular in the top view of FIG. 13, cavities 58 being adjacent noses 56 receiving material in order to then cut it off with the beam 11.
  • sensor lines can be passed through the body 3, which have electrical connections on the outward-facing side.
  • a sensor can thus be arranged in a simple manner during mixing near the bottom of the material to be processed.
  • a light guide can also be carried out or a feed line which forms a heating element or a Peltier element in the interior 60.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Clinical Laboratory Science (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

A device for mixing and homogenizing materials, especially infectious or chemically aggressive materials, which can be inserted into a laboratory test container. A disposable lid is provided to hermetically seal said laboratory test container. A stirring element is provided in the disposable lid for processing the material that is introduced into the laboratory test container. Said stirring element is fitted with a cutting element that rotates about the longitudinal axis of the laboratory test container, said cutting element processing the material together with additional cutting edges. Complete homogenization of tissue fragments can be securely achieved by hermetically closing the laboratory test container.

Description

Vorrichtung zum Mischen und Homogenisieren von Materialien in einem Labortestgefass mit einem Rührelement. Device for mixing and homogenizing materials in a laboratory test vessel with a stirring element.
Die Erfindung betrifft eine Vorrichtung zum Mischen und Homogenisieren von Materialien, insbesondere infektiösen oder chemisch aggressiven Materialien, in einem Labortestgefass.The invention relates to a device for mixing and homogenizing materials, in particular infectious or chemically aggressive materials, in a laboratory test vessel.
Magnetrührer und mechanische Rührer sind im Laborbetrieb allgemein bekannt und gebräuchlich. Bei der Zerkleinerung von infektiösen oder chemisch aggressiven Materialien in nicht hermetisch abgeschlossenen Gefässen besteht eine grosse Infektions- und/oder Kontaminationsgefahr durch unkontrollierte Spritzer, die durch die Öffnung des Labortestgefasses nach aussen dringen können, durch unbeabsichtigtes Umkippen des Labortestgefasses und durch die Verwendung von Mehrwegmixern. Dies ist insbesondere bei Reagenzgläsern und hierfür bekannte Mischer der Fall .Magnetic stirrers and mechanical stirrers are generally known and used in laboratory operations. When crushing infectious or chemically aggressive materials in non-hermetically sealed containers, there is a high risk of infection and / or contamination from uncontrolled splashes that can escape through the opening of the laboratory test vessel, through unintentional tipping over of the laboratory test vessel and through the use of reusable mixers. This is particularly the case with test tubes and mixers known for this.
Ausgehend von diesem Stand der Technik ist es Aufgabe der vorliegenden Erfindung, eine Vorrichtung der eingangs genannten Art zu schaffen, der eine hermetische Verschliessung des Labortestgefasses und eine vollständige Durchmischung von mischbaren Stoffen und Flüssigkeiten erlaubt.Starting from this prior art, it is an object of the present invention to provide a device of the type mentioned at the outset which permits hermetic sealing of the laboratory test vessel and complete mixing of miscible substances and liquids.
Diese Aufgabe wird erfindungsgemäss mit einer Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst .According to the invention, this object is achieved with a device having the features of claim 1.
Dadurch, dass ein Deckel vorgesehen ist, mit dem gleichzeitig das Labortestgefass hermetisch verschlossen wird und in dem Labortestgefass befindliche Materialien verarbeitet werden, insbesondere gemischt und homogenisiert, wird die Arbeitssicherheit des die Verarbeitung vornehmenden Benutzers wesentlich erhöht. Damit sind auch infektiöse Gewebefragmente in sicherer Weise behandelbar. Durch die hermetische Verschliessung des Labortestgefasses kann so in sicherer Weise eine vollständige Homogenisie- rung der Gewebefragmente erreicht werden.The fact that a lid is provided, with which the laboratory test vessel is hermetically sealed and materials in the laboratory test vessel are processed, in particular mixed and homogenized, improves occupational safety of the user performing the processing is significantly increased. This means that even infectious tissue fragments can be treated safely. A complete homogenization of the tissue fragments can be achieved in a safe manner by the hermetic sealing of the laboratory test vessel.
Vorteilhafterweise ist der Deckel als Einwegdeckel ausgestaltet, so dass er direkt nach Gebrauch entsorgt wird und somit eine Kontamination bei der weiteren Arbeit im Labor sicher vermieden wird.The lid is advantageously designed as a disposable lid, so that it is disposed of immediately after use, and thus contamination during further work in the laboratory is reliably avoided.
Die Erfindung wird nachfolgend an verschiedenen Ausführungsbei- spielen unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert. Es zeigen: Fig. 1 eine schematische teilweise geschnittene seitliche Ansicht eines ersten Ausführungsbeispiels der Erfindung,The invention is explained in more detail below using various exemplary embodiments with reference to the accompanying drawings. 1 shows a schematic, partially sectioned side view of a first exemplary embodiment of the invention,
Fig. 2 eine schematische Draufsicht auf den Einwegdeckel des ersten Ausführungsbeispiels nach Fig. 1,2 shows a schematic top view of the disposable cover of the first exemplary embodiment according to FIG. 1,
Fig. 3 eine Darstellung des Einwegdeckels aus Fig. 1, Fig. 4 eine Explosionsdarstellung des in dem Einwegdeckel eingesetzten Antriebs aus Fig. 1,3 shows the disposable cover from FIG. 1, FIG. 4 shows an exploded view of the drive from FIG. 1 used in the disposable cover,
Fig. 5 eine schematische teilweise geschnittene seitliche Ansicht eines zweiten Ausführungsbeispiels der Erfindung,5 shows a schematic, partially sectioned side view of a second exemplary embodiment of the invention,
Fig. 6 eine schematische Draufsicht auf den Einwegdeckel des zweiten Ausführungsbeispiels nach Fig. 5,6 shows a schematic top view of the one-way cover of the second exemplary embodiment according to FIG. 5,
Fig. 7 eine Darstellung des Einwegdeckels aus Fig. 5,7 shows the disposable cover from FIG. 5,
Fig. 8 eine Explosionsdarstellung des in dem Einwegdeckel eingesetzten Antriebs aus Fig. 5,8 is an exploded view of the drive from FIG. 5 used in the one-way cover,
Fig. 9 eine schematische teilweise geschnittene seitliche An- sieht eines dritten Ausführungsbeispiels der Erfindung,9 is a schematic partially sectioned side view of a third embodiment of the invention,
Fig. 10 eine schematische Draufsicht auf den Einwegdeckel des dritten Ausführungsbeispiels nach Fig. 9,10 is a schematic plan view of the one-way cover of the third embodiment according to FIG. 9,
Fig. 11 eine Darstellung des Einwegdeckels aus Fig. 9, Fig. 12 eine schematische geschnittene seitliche Ansicht eines Einwegdeckels nach einem vierten Ausführungsbeispiel der Erfindung, und Fig. 13 eine Draufsicht auf den Einwegdeckel aus Fig. 12.11 shows the disposable cover from FIG. 9, 12 shows a schematic sectional side view of a disposable cover according to a fourth exemplary embodiment of the invention, and FIG. 13 shows a plan view of the disposable cover from FIG. 12.
Die Fig. 1 zeigt eine schematische teilweise geschnittene seitliche Ansicht eines ersten Ausführungsbeispiels der Erfindung. Ein Labortestgefass ist mit dem Bezugszeichen 20 versehen. Dabei handelt es sich hier um ein zylindrisches Röhrchen 18 mit ko- nisch zulaufender Spitze 21. Das Innere 17 des Labortestgefasses 20 wird mit den zu mischenden Materialien 37 gefüllt. Anschlie- ssend wird das Labortestgefass 20 ist im Einsatz des Einweg- Schraubverschlussdeckels 10 mit diesem verschlossen und dann auf den Kopf gestellt.Fig. 1 shows a schematic partially sectioned side view of a first embodiment of the invention. A laboratory test vessel is provided with the reference number 20. This is a cylindrical tube 18 with a conically tapering tip 21. The interior 17 of the laboratory test vessel 20 is filled with the materials 37 to be mixed. The laboratory test vessel 20 is then closed with the one-way screw cap 10 in use and then turned upside down.
Im Einweg-Schraubverschlussdeckel oder Einweg-Schnappkappe (Snap-Cap) 10 des hermetisch abdichtbaren Labortestgefasses 20 ist ein eingelassener, vierkantiger, mit radialen und axialen Schneidekanten 29 versehener Kunststoff- oder Metallbalken 11 vorgesehen, der an den schneidenden Kanten 28 der SchneidrippenIn the one-way screw cap or one-way snap cap 10 of the hermetically sealable laboratory test vessel 20 there is a recessed, square-edged plastic or metal bar 11, provided with radial and axial cutting edges 29, on the cutting edges 28 of the cutting ribs
12 vorbeigeführt wird. Dieser Balken 11 wird mit Hilfe der Achse12 is passed. This bar 11 is made using the axis
13 von ausserhalb des Labortestgefasses 20 von einem Innensechs- punkte-Schneilkupplungsring 14 angetrieben.13 driven from the outside of the laboratory test vessel 20 by a six-point cutting coupling ring 14.
Das Labortestgefass 20 mit den zu mischenden und homogenisierenden Materialien wird bei kopfstehender Gefässstellung entsprechend Fig. 1 kraftschlüssig über den Kupplungsring 14 auf einen externen Antrieb gestellt . Durch die übertragene Drehbewegung werden die sich im Innenraum 17 des Gefässes 20 befindlichen Stoffe und Flüssigkeiten durch den Balken 11 axial, das heisst entlang der longitudinalen Achse 22 des Labortestgefasses 20, angesaugt und radial weggeschleudert . Dabei werden sie unter Schneideinwirkung an den peripheren Schneidrippen 12 durch die Schlitze ausgestossen. Dadurch wird das Mixgut zerquetscht, gemischt, homogenisiert und anschliessend an der Mischerwand 15, die sich jeweils zwischen den Schneidrippen 12 erstreckt, nach oben umgelenkt. Der um die Achse 13 gelegte Dichtungsring 16 verhindert das Auslaufen der Flüssigkeit. Die Rotationsenergie wird mechanisch von aussen auf den Kupplungsring 14 und die Achse 13 auf den Balken 11 übertragen. Die Drehzahl ist material- spezifisch für eine optimale Homogenisierung festgelegt. Der Dichtungsring 16 kann durch eine Dichtungslippe realisiert sein.The laboratory test vessel 20 with the materials to be mixed and homogenized is non-positively placed on an external drive via the coupling ring 14 when the vessel is upside down as shown in FIG. 1. As a result of the transferred rotary movement, the substances and liquids located in the interior 17 of the vessel 20 are sucked axially through the bar 11, that is to say along the longitudinal axis 22 of the laboratory test vessel 20, and are flung away radially. They are under the action of cutting on the peripheral cutting ribs 12 by the Slits ejected. As a result, the material to be mixed is crushed, mixed, homogenized and then deflected upwards on the mixer wall 15, which extends in each case between the cutting ribs 12. The sealing ring 16 placed around the axis 13 prevents the liquid from escaping. The rotational energy is mechanically transmitted from the outside to the coupling ring 14 and the axis 13 to the beam 11. The speed is material-specific for optimal homogenization. The sealing ring 16 can be realized by a sealing lip.
Die Fig. 2 zeigt eine schematische Draufsicht auf den Einwegdek- kel 10 des ersten Ausführungsbeispiels nach Fig. 1. Gleiche Merkmale sind in allen Fig. mit den gleichen Bezugszeichen versehen. Die Schneidlippen 12 sind durch ein wellenförmig am Um- kreis angeordnetes Element ausgebildet, welches hier neun Lippen umfasst. Der Balken 11 kann beispielsweise ü-förmig, nach unten offen, ausgebildet sein, so dass auf beiden Seiten des Balkens 11 zwei vertikale Schneidkanten 29 bestehen. Diese jeweils zwei Schneidkanten 29 stehen in einem geringen Abstand den hier acht- zehn (zwei mal neun) Schneidkanten 28 der Schneidlippen 12 gegenüber .FIG. 2 shows a schematic plan view of the one-way cover 10 of the first exemplary embodiment according to FIG. 1. The same features are provided with the same reference symbols in all of the figures. The cutting lips 12 are formed by an element arranged in a wave shape on the circumference, which here comprises nine lips. The beam 11 can for example be U-shaped, open at the bottom, so that there are two vertical cutting edges 29 on both sides of the beam 11. These two cutting edges 29 each stand at a short distance from the eighty (two times nine) cutting edges 28 of the cutting lips 12.
Die Fig. 3 zeigt eine isolierte Darstellung des Einwegdeckels 10 aus Fig. 1, bei dem alle für die Übertragung der Drehbewegung wesentlichen Elemente in den Körper 3 eingesetzt sind. Die Fig. 4 zeigt eine Explosionsdarstellung des in dem Einwegdeckel 10 eingesetzten Antriebs aus Fig. 1, bestehend aus dem Balken 11 mit einstückig verbundener Achse 13, dem Dichtungsring 16 und dem Kupplungsring 14, die alle um die Längsachse 22 der Vorrich- tung angeordnet sind.FIG. 3 shows an isolated representation of the one-way cover 10 from FIG. 1, in which all elements essential for the transmission of the rotary movement are inserted into the body 3. FIG. 4 shows an exploded view of the drive from FIG. 1 used in the one-way cover 10, consisting of the beam 11 with an integrally connected axis 13, the sealing ring 16 and the coupling ring 14, all of which are arranged around the longitudinal axis 22 of the device ,
Die Fig. 5 zeigt eine schematische teilweise geschnittene seitliche Ansicht eines zweiten Ausführungsbeispiels der Erfindung. Der Einwegdeckel 10 verfügt über einen Körper 3, der eine Umkreisnut 24 aufweist, in die das Labortestgefass 20 einsteckbar oder einschraubbar ist. An der Innenseite der Umkreisnut 24 ist ein Dichtungselement 1 eingesetzt, welches gleichzeitig den In- nenraum 9 des Labortestgefasses 20 hermetisch gegenüber dem Au- ssenraum abschliesst. Das Dichtungselement 1 verfügt gleichzeitig über eine quer zur Längsachse 22 angeordnete, durchlöcherte Scheibe, die gegenüber dem Körper 3 einen Hohlraum 30 ausbildet, der einen zylindrischen Käfig formt. In diesem Hohlraum 30 ist ein Drehkreuz 2 angeordnet. Das Drehkreuz 2 hat radiale 39 und periphere 38 Schneidkanten, die an den entsprechenden Schneidkanten 31 der Einlasslöcher 25 vorbeigeführt werden. Das Labortestgefass 20 mit den zu mit mischenden Materialien wird dann mit dem Einwegdeckel 10 verschlossen, auf den Kopf gestellt und kraftschlüssig über die Antriebsachse 4 und den Anschluss 6 auf den externen Antrieb gestellt. Eine Dichtungslippe 5 verhindert das Auslaufen der Flüssigkeit. Die Rotationsenergie wird mechanisch von aussen auf den Innensechskant 6 und die Achse 4 übertragen. Die Drehzahl wird auch hier materialspezifisch für eine optimale Homogenisierung festgelegt.Fig. 5 shows a schematic partially sectioned side view of a second embodiment of the invention. The disposable lid 10 has a body 3 which has a circumferential groove 24 into which the laboratory test vessel 20 can be inserted or screwed. On the inside of the circumferential groove 24, a sealing element 1 is inserted, which at the same time hermetically seals the interior 9 of the laboratory test vessel 20 from the exterior. The sealing element 1 also has a perforated disc which is arranged transversely to the longitudinal axis 22 and forms a cavity 30 with respect to the body 3, which forms a cylindrical cage. A turnstile 2 is arranged in this cavity 30. The turnstile 2 has radial 39 and peripheral 38 cutting edges which are guided past the corresponding cutting edges 31 of the inlet holes 25. The laboratory test vessel 20 with the materials to be mixed is then closed with the one-way lid 10, turned upside down and non-positively placed on the external drive via the drive axis 4 and the connection 6. A sealing lip 5 prevents the liquid from escaping. The rotational energy is transferred mechanically from the outside to the hexagon socket 6 and the axis 4. The speed is also determined here material-specific for optimal homogenization.
Die Fig. 6 zeigt eine schematische Draufsicht auf den Einwegdek- kel des zweiten Ausführungsbeispiels nach Fig. 5. Das Dichtungs- element 1 weist in dem Scheibenbereich hier vier Durchbrüche 25 auf, die in einem radialen Abstand von der Achse 22 stehen und im Winkelabstand von 90 Grad zueinander angeordnet sind. Hier ist das Schneidelement ein Drehkreuz 2 mit vier Armen 32. Anstelle von vier Durchbrüchen 25 und einem Drehkreuz 2 mit vier Armen 32 sind auch entsprechende Elemente mit drei oder bei- spielsweise fünf Durchbrüchen/Armen möglich. Das Drehkreuz 2 kann ein vierkantiges Kunststoffkreuz sein.FIG. 6 shows a schematic plan view of the one-way cover of the second exemplary embodiment according to FIG. 5. The sealing element 1 has four openings 25 in the pane area, which are at a radial distance from the axis 22 and at an angular distance from 90 degrees to each other. Here, the cutting element is a turnstile 2 with four arms 32. Instead of four openings 25 and a turnstile 2 with four arms 32, corresponding elements with three or, for example, five openings / arms are also possible. The turnstile 2 can be a square plastic cross.
Die Fig. 7 zeigt eine Darstellung des Einwegdeckels aus Fig. 5. Die Fig. 8 zeigt eine Explosionsdarstellung des in dem Einwegdeckel 10 eingesetzten Antriebs aus Fig. 5, der aus den vier Elementen besteht. Dabei ist hier mit dem Bezugszeichen angedeutet, dass das Labortestgefass 20 in die Umkreisnut eingeschraubt wird, die an ihrer Aussenseite über ein entsprechendes Gewinde 33 verfügt.FIG. 7 shows a representation of the one-way cover from FIG. 5. FIG. 8 shows an exploded view of the drive from FIG. 5 used in the one-way cover 10, which consists of the four elements. It is indicated here with the reference symbol that the laboratory test vessel 20 is screwed into the circumferential groove, which has a corresponding thread 33 on its outside.
Insbesondere kann die Antriebsachse 4 wärmeleitend sein, so dass über diese Antriebsachse 4 Wärmeenergie in das Labortestgefass 20 einführbar oder aus diesem nach aussen ableitbar ist. Es kann auch vorgesehen sein, dass in das Labortestgefass 20 elektrische Energie über die Antriebsachse 4 eingeführt wird und/oder das elektrochemische Sensoren eingesetzt sind.In particular, the drive axis 4 can be thermally conductive, so that thermal energy can be introduced into the laboratory test vessel 20 via this drive axis 4 or can be dissipated to the outside thereof. It can also be provided that electrical energy is introduced into the laboratory test vessel 20 via the drive axis 4 and / or that electrochemical sensors are used.
Die Fig. 9 zeigt eine schematische teilweise geschnittene seitliche Ansicht eines dritten Ausführungsbeispiels der Erfindung. In den Deckel 10 ist ein Drehflügel oder Rotor 13 in einem zylindrischen Käfig 42 integriert. Der zylindrische Käfig 12 ist in einem Körper 41 des Deckels 10 eingesetzt und verfügt über vier radial ausgerichtete, ovale Durchbrüche 26, durch die das zu homogenisierende Material in den Hohlraum 30 in dem Käfig 42 geführt und dort von dem Rotor 13 abgeschnitten wird.9 shows a schematic, partially sectioned side view of a third exemplary embodiment of the invention. A rotary vane or rotor 13 is integrated in the cover 10 in a cylindrical cage 42. The cylindrical cage 12 is inserted in a body 41 of the cover 10 and has four radially oriented, oval openings 26, through which the material to be homogenized is guided into the cavity 30 in the cage 42 and is cut off there by the rotor 13.
Der inerte Rotor 13, der aus einem Stabmagnet 43 gebildet sein kann oder diesen als Kern umfasst, hat radiale 39 und periphere 38 Schneidkanten, die an den entsprechenden Schneidkanten 31, das heisst den Rändern der Öffnungen 26, des zylindrischen Käfigs 42 vorbeigeführt werden. Das Labortestgefass 20 mit dem Gewebematerial 27 wird auf dem Deckel stehend in den Antrieb ge- stellt, so dass sich eine Füllhöhe 37 ergibt und das Material mit dem Käfig 42 und dem Rotor 13 in Kontakt steht. Der in den Zeichnungen nicht dargestellte bekannte Antrieb umfasst einen weiteren magnetischen Rotor, mit dem die Rotationsenergie magne- tisch oder elektromagnetisch übertragen wird. Die magnetische Feldstärke ist so dimensioniert, dass ein für die Homogenisierung optimales Drehmoment übertragen wird.The inert rotor 13, which can be formed from a bar magnet 43 or comprises this as a core, has radial 39 and peripheral 38 cutting edges which are guided past the corresponding cutting edges 31, that is to say the edges of the openings 26, of the cylindrical cage 42. The laboratory test vessel 20 with the tissue material 27 is placed in the drive standing on the cover, so that a fill level 37 results and the material is in contact with the cage 42 and the rotor 13. The known drive, not shown in the drawings, comprises a further magnetic rotor with which the rotational energy is magnetically is transmitted table or electromagnetic. The magnetic field strength is dimensioned so that an optimal torque for the homogenization is transmitted.
Die Fig. 10 zeigt eine schematische Draufsicht auf den Einwegdeckel 10 des dritten Ausführungsbeispiels nach Fig. 9 und die Fig. 11 zeigt eine Darstellung des Einwegdeckels aus Fig. 9. Die kreisförmige Nut 24 gestattet einen über einen formschlüssigen Sitz hinausgehenden Passitz des Labortestgefasses 20 in dem Dek- kel 11. Der Magnetstab 13 ist asymmetrisch aufgebaut, so dass durch den strömungstechnisch optimierten Aufbau in der einen Drehrichtung ein zentraler Flüssigkeitsstrom von oben nach unten und in der anderen Drehrichtung ein lateraler Flüssigkeitsstrom entlang der Wand des Labortestgefasses 20 von oben nach unten erzeugt. Durch eine Drehrichtungsumkehr wird somit die Ansaug- und Ausstosswirkung geändert .FIG. 10 shows a schematic top view of the disposable lid 10 of the third exemplary embodiment according to FIG. 9 and FIG. 11 shows a representation of the disposable lid from FIG. 9. The circular groove 24 allows a fit of the laboratory test vessel 20 in that extends beyond a form-fitting seat the lid 11. The magnetic rod 13 is constructed asymmetrically, so that the flow-optimized construction generates a central liquid flow from top to bottom in one direction of rotation and a lateral liquid flow along the wall of the laboratory test vessel 20 from top to bottom in the other direction of rotation , By reversing the direction of rotation, the suction and exhaust effect is changed.
Die Fig. 12 zeigt eine schematische geschnittene seitliche Ansicht eines Einwegdeckels nach einem vierten Ausführungsbeispiel der Erfindung, und die Fig. 13 eine Draufsicht auf den Einwegdeckel aus Fig. 12. Dabei ist hier zusätzlich noch der Anschluss dargestellt. Die Unterschiede zu dem Ausführungsbeispiel aus Fig. 1 sind insbesondere wie folgt. Der Schneilkupplungsring 14 verfügt an seiner Unterseite über Zähne, die in Zähne 53 einer Antriebswelle 54 eingreifen. Die Unterkante 55 des Körpers 3 ist insbesondere so weit nach unten gezogen, dass der Deckel 10 flach hingestellt werden kann, ohne dass die Zähne des Schnell- kupplungsringes 14 überstehen.FIG. 12 shows a schematic sectional side view of a one-way cover according to a fourth exemplary embodiment of the invention, and FIG. 13 shows a plan view of the one-way cover from FIG. 12. The connection is also shown here. The differences from the exemplary embodiment from FIG. 1 are in particular as follows. The Schneilkupplungsring 14 has teeth on its underside which engage teeth 53 of a drive shaft 54. The lower edge 55 of the body 3 is in particular pulled down so far that the cover 10 can be placed flat without the teeth of the quick coupling ring 14 protruding.
Mit dem Bezugszeichen 59 ist ein Kugellager für die Welle 13 bezeichnet. Solch ein Kugellager ist jedoch für eine kostengünstige Fertigung der Vorrichtung als Einwegdeckel 10 nicht erforderlich. Sie kann insbesondere durch eine in den Zeichnungen nicht dargestellte Gleitlagerung der Antriebswelle 13 ersetzt werden, wobei die Abdichtung durch einen eingelegten O-Ring vorgesehen wird. Dies ist insbesondere deshalb von Vorteil, weil bei einem Einweg-Deckel 10 das Lager nur einmalig und dann für nur eine kurze Zeit belastet wird und diese Last aushalten muss.A ball bearing for the shaft 13 is designated by the reference number 59. However, such a ball bearing is not required for an inexpensive manufacture of the device as a one-way cover 10. In particular, one cannot in the drawings slide bearing shown drive shaft 13 are replaced, the seal being provided by an inserted O-ring. This is particularly advantageous because in the case of a disposable cover 10, the bearing is loaded only once and then only for a short time and has to endure this load.
Der Käfig 52 bildet hier gleichzeitig Schneidkanten aus, die nicht aus Durchbrüchen wie im zweiten Ausführungsbeispiel und auch nicht aus einem rein seitlichen Element wie im ersten Aus- führungsbeispiel bestehen. Der Käfig 52 verfügt über nach unten gezogene Nasen 56, die den Balken 11 umfangen. Dieser ist mit zwei Armen ausgestattet, es kann aber auch ein Drehkreuz 2 mit mehr Armen vorgesehen sein. Die Schneidkanten 57 sind insbesondere in der Draufsicht der Fig. 13 zu erkennen, wobei Hohlräume 58 sind benachbarten Nasen 56 Material aufnehmen, um es an- schliessend mit dem Balken 11 abzuschneiden.The cage 52 here simultaneously forms cutting edges which do not consist of openings as in the second exemplary embodiment and also do not consist of a purely lateral element as in the first exemplary embodiment. The cage 52 has downwardly drawn lugs 56 which enclose the beam 11. This is equipped with two arms, but a turnstile 2 with more arms can also be provided. The cutting edges 57 can be seen in particular in the top view of FIG. 13, cavities 58 being adjacent noses 56 receiving material in order to then cut it off with the beam 11.
In den Zeichnungen nicht dargestellt sind folgende Merkmale, die in allen in den Fig. dargestellten Ausführungsformen aufgenommen werden können. Seitlich zu dem Balken, beispielsweise in der Fig. 12 im Bereich 60 und 61 können Sensorleitungen durch den Körper 3 durchgeführt werden, die auf der nach aussen weisenden Seite über elektrische Verbindungen verfügen. Somit kann in einfacher Weise ein Sensor während des Mischens in Bodennähe des zu bearbeitenden Materials angeordnet werden. Anstelle von Sensor- leitungen kann auch ein Lichtleiter durchgeführt werden oder eine Zuleitung, welche im Innenraum 60 einen Heizkörper oder ein Peltierelement ausbildet. The following features, which can be included in all the embodiments shown in the figures, are not shown in the drawings. To the side of the bar, for example in FIG. 12 in the area 60 and 61, sensor lines can be passed through the body 3, which have electrical connections on the outward-facing side. A sensor can thus be arranged in a simple manner during mixing near the bottom of the material to be processed. Instead of sensor lines, a light guide can also be carried out or a feed line which forms a heating element or a Peltier element in the interior 60.

Claims

Patentansprüche claims
1. Vorrichtung zum Mischen und Homogenisieren von Materiali- en, insbesondere infektiösen oder chemisch aggressiven Materialien (17, 27) , in einem Labortestgefass (20) mit einem Rührelement (2, 11, 13) , dadurch gekennzeichnet, dass ein Deckel (10) für die hermetische Verschliessung des Labortestgefasses (20) vorgesehen ist und dass in dem Deckel (10) zur Bearbeitung des in dem Labortestgefass (20) einbringbaren Materials (17, 27) das besagte Rührelement (2, 11, 13) vorgesehen ist, das mit einem sich um die Längsachse (22) des Labortestgefasses (20) drehenden Schneidelement (29; 38, 39) versehen ist, welches in unmittelbarer Nähe zu weiteren Schneidkanten (12, 28; 31) angeordnet ist.1. Device for mixing and homogenizing materials, in particular infectious or chemically aggressive materials (17, 27), in a laboratory test vessel (20) with a stirring element (2, 11, 13), characterized in that a cover (10) is provided for the hermetic sealing of the laboratory test vessel (20) and that said stirring element (2, 11, 13) is provided in the cover (10) for processing the material (17, 27) that can be introduced into the laboratory test vessel (20) a cutting element (29; 38, 39) rotating about the longitudinal axis (22) of the laboratory test vessel (20) is provided, which is arranged in the immediate vicinity of further cutting edges (12, 28; 31).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die weiteren Schneidkanten (12, 28; 31) an dem Körper (3, 41) des Deckels (10) einstückig oder als Zusatzelement (1, 42) vorgesehen sind.2. Device according to claim 1, characterized in that the further cutting edges (12, 28; 31) on the body (3, 41) of the cover (10) are provided in one piece or as an additional element (1, 42).
3. Vorrichtung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass der Deckel ein Einwegdeckel (10) ist und/oder dass er einen Schraubverschluss oder einen Schnappverschluss aufweist, der zu einem entsprechenden Element an dem Labortestgefass (20) komplementär ist.3. Device according to claim 1 or 2, characterized in that the lid is a disposable lid (10) and / or that it has a screw cap or a snap closure which is complementary to a corresponding element on the laboratory test vessel (20).
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Labortestgefässe (20) zylindrisch oder quaderförmig sind und/oder dass die Labortestgefässe (20) aus Kunststoff oder Glas bestehen.4. Device according to one of claims 1 to 3, characterized in that the laboratory test vessels (20) are cylindrical or cuboid and / or that the laboratory test vessels (20) consist of plastic or glass.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Bearbeitung des Materials dessen Zerquet- schung, Mischung und Homogenisierung umfasst.5. Device according to one of claims 1 to 4, characterized in that the processing of the material whose crushing research, mixing and homogenization.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Schneidelement über radiale (29, 38) und/oder periphere (39) Schneidkanten verfügt, die insbesondere aus Kunststoff oder Metall bestehen.6. Device according to one of claims 1 to 5, characterized in that the cutting element has radial (29, 38) and / or peripheral (39) cutting edges, which in particular consist of plastic or metal.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Deckel (10) über einen Dichtungsring (5, 16) zum hermetischen Verschluss zwischen dem Gefässinneren (17) des Labortestgefasses (20) und der äusseren Umgebung verfügt.7. Device according to one of claims 1 to 6, characterized in that the lid (10) has a sealing ring (5, 16) for hermetic sealing between the interior of the vessel (17) of the laboratory test vessel (20) and the external environment.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die zugeführte Rotationsenergie von aussen über einen mechanischen Innensechspunkte-Schnellkupplungsring (14) oder einen mechanischen Steckanschluss (6) oder eine berührungslose magnetische Kupplung (13 und 43) zugeführt wird, wobei das Schneidelement einen Magnetstab (13) umfasst, der über ein von aussen durch ein sich drehendes elektromagnetisches Feld um die Längsachse (22) drehbar ist.8. Device according to one of claims 1 to 7, characterized in that the supplied rotational energy from the outside via a mechanical six-point quick coupling ring (14) or a mechanical plug connection (6) or a contactless magnetic coupling (13 and 43) is supplied, wherein the cutting element comprises a magnetic rod (13) which can be rotated about the longitudinal axis (22) by means of a rotating electromagnetic field from the outside.
9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass über die wärmeleitende Antriebsachse Wärmeenergie in das Labortestgefass (20) einführbar oder aus diesem nach aussen ableitbar ist. 9. Device according to one of claims 1 to 8, characterized in that thermal energy can be introduced into the laboratory test vessel (20) via the heat-conducting drive axis or can be derived therefrom.
EP01969125A 2001-02-22 2001-10-04 Device for mixing and homogenizing materials in laboratory test container with a stirring element Expired - Lifetime EP1361917B1 (en)

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DK1361917T3 (en) 2004-12-06
JP4261188B2 (en) 2009-04-30
WO2002066147A1 (en) 2002-08-29
US7165734B2 (en) 2007-01-23
AU2001289471B2 (en) 2006-05-18
EP1361917B1 (en) 2004-08-04
DE50103166D1 (en) 2004-09-09
ES2225601T3 (en) 2005-03-16
JP2004528960A (en) 2004-09-24
ATE272439T1 (en) 2004-08-15
NZ527657A (en) 2006-02-24
PT1361917E (en) 2004-11-30
US20040252582A1 (en) 2004-12-16
CA2438342A1 (en) 2002-08-29
CA2438342C (en) 2009-09-29

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