EP1137886B1 - Roller pump for the peristaltic transport of liquid and gaseous media - Google Patents
Roller pump for the peristaltic transport of liquid and gaseous media Download PDFInfo
- Publication number
- EP1137886B1 EP1137886B1 EP99964604A EP99964604A EP1137886B1 EP 1137886 B1 EP1137886 B1 EP 1137886B1 EP 99964604 A EP99964604 A EP 99964604A EP 99964604 A EP99964604 A EP 99964604A EP 1137886 B1 EP1137886 B1 EP 1137886B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- roller
- tube
- accordance
- roller pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
- F04B43/1292—Pumps specially adapted for several tubular flexible members
Definitions
- the invention relates to a roller pump for peristaltic delivery of liquid and gaseous Media.
- Roller pumps and pumps are used in many medical devices and devices in laboratory diagnostics Peristaltic pumps for various conveying tasks, mainly for the transport of liquids used because they have no direct contact with the pumped medium. Both types convey the pumped medium by means of a pump hose segment provided for this purpose is partially squeezed tightly from the outside and this crushing is then moved in the conveying direction is, so that the material to be conveyed in the hose must also continue to move. Before this Seals the hose at the end of the pump segment again, at the beginning of the Pump segment created the next sealing point, which then with the next delivery portion advanced.
- the advantage of this method is that no part of the pump touches the material to be conveyed directly. This enables sterile and toxic substances to be conveyed.
- the hose system with The pump segments are mostly disposable items and are disposed of after use.
- a hose system often contains several pump segments for different pumping tasks. Confusion of one pump segment with another must be done when inserting the Hose system can be avoided safely, as well as a reversal of the insertion direction and thus the pumping direction. Especially in medical devices such as dialysis machines this requirement is often vital for the connected patient. That's why there are many Provide pump segments in this area with mechanical adapters and coding, that prevent incorrect insertion.
- the number of existing in the hose system Pump segments are based on the task; in medical technology, they are devices with far more than ten pumps and hose clamp valves in use, in laboratory diagnostics up to 40 channels are required simultaneously (example laboratory cassette pump). The complexity of these hose systems often leads to a tangle that is difficult to see on hoses, pump segments and connecting elements. The correct insertion of all Pump segments are a particular problem here.
- Another disadvantage is the costly production of such a hose system Tightness problems at the gluing points of the hose pieces and connecting elements and Dead spaces and dead ends in the hose system due to the spatially distant arrangement of Pump.
- Another general problem with peristaltic pumps is the generally limited one Lifetime of the pump segment. Because the tube is actually round in cross section is cyclically flat rolled, there is a risk that it is particularly at its laterally extremely loaded Bends break prematurely and therefore leak.
- the pump rollers have to To be able to build up pressure, press the pump hose so that the pressure point really is tightly closed, occlusion at zero distance. Through this tightness requirement in Pump segment, the bending radius at the pump segment cross section is very small when squeezing, a real kink. Therefore, there are generally only a few very flexible materials for these requirements suitable as a pump segment (e.g. silicone). The transition of these materials to that Other hose material (usually PVC) is often a further problem.
- Roller pumps of various types are used for the hose systems mentioned.
- One such is shown in US-A-3832 096.
- This pump has several on a common Axis arranged rotating body, all rigidly connected to each other, by one and be driven by the same motor.
- the flow is regulated by adjusting the individual adjustable counter bearing of each individual pump segment compared to the itself rotating roller of all rotating bodies. Examples with individual are also known Driving each rotating body, e.g. US 5443 451. It shows one out of four side by side arranged pumps existing four-pump block, in which each pump through from each other differently constructed gear shaft connections is driven. These drives sit to the right and left of the side of the pump block, so that no further baying a pump or a further four-pump block is possible.
- a decisive step forward in solving the problems presented is the use of a flexible tube cassette made by thermoplastic molding with embossed Pumping segments.
- the invention has for its object a roller pump for operation with such hose cassettes to sharpen that those shown in the prior art Overcomes disadvantages.
- the narrow roller pump units are each separate Drives in any number according to the requirements of the flow of the Pump hose system embossed pump segments modularly arranged on one axis.
- the structure of the roller pump is thus easy to service and clear.
- a double security compared to conventional solenoid valves is realized by implementing a general Stop position of each roller pump unit in such a way that stationary roller pump units basically be brought into the state that two roles at the same time are engaged and double clamping takes place.
- a roller pump 1 for operation with a hose cassette 2 is shown, wherein the individual roller pump units 4 sit on a common axis 6 and each have their own drive 14.
- the sprung pressure rollers 7, 8 of the rotating body 5 of each roller pump unit act on a pump hose segment 3 Hose cassette 2.
- the hose cassette 2 is on the roller pump units when the cover 9 of the roller pump 2 is open 4 placed. When the lid 9 is closed, the entire hose system is finished inserted.
- All parts of a roller pump unit 4 are arranged on a mounting plate 15.
Abstract
Description
Die Erfindung betrifft eine Rollenpumpe zur peristaltischen Förderung von flüssigen und gasförmigen Medien.The invention relates to a roller pump for peristaltic delivery of liquid and gaseous Media.
In vielen medizinischen Geräten und Geräten der Labordiagnostik werden Rollenpumpen und Peristaltikpumpen für verschiedene Förderaufgaben, vorwiegend zum Transport von Flüssigkeiten eingesetzt, da sie keinen direkten Kontakt zum gepumpten Medium haben. Beide Typen befördern das gepumpte Medium, indem ein dafür vorgesehenes Pumpschlauchsegment von außen partiell dicht gequetscht wird und diese Quetschung dann in Förderrichtung bewegt wird, so daß sich das Fördergut im Schlauch ebenfalls weiterbewegen muß. Bevor diese Dichtstelle den Schlauch am Ende des Pumpsegmentes wieder freigibt, wird am Anfang des Pumpsegmentes die nächste Dichtstelle geschaffen, die sich dann mit der nächsten Förderportion weiterbewegt.Roller pumps and pumps are used in many medical devices and devices in laboratory diagnostics Peristaltic pumps for various conveying tasks, mainly for the transport of liquids used because they have no direct contact with the pumped medium. Both types convey the pumped medium by means of a pump hose segment provided for this purpose is partially squeezed tightly from the outside and this crushing is then moved in the conveying direction is, so that the material to be conveyed in the hose must also continue to move. Before this Seals the hose at the end of the pump segment again, at the beginning of the Pump segment created the next sealing point, which then with the next delivery portion advanced.
Der Vorteil dieses Verfahrens liegt darin, daß kein Pumpenteil das Fördergut direkt berührt. Dadurch können sterile und auch toxische Stoffe gefördert werden. Das Schlauchsystem mit den Pumpsegmenten ist hierbei meist ein Einwegartikel, es wird nach der Benutzung entsorgt.The advantage of this method is that no part of the pump touches the material to be conveyed directly. This enables sterile and toxic substances to be conveyed. The hose system with The pump segments are mostly disposable items and are disposed of after use.
Oftmals enthält ein Schlauchsystem mehrere Pumpsegmente für verschiedene Pumpaufgaben. Eine Verwechslung eines Pumpsegmentes mit einem anderen muß beim Einlegen des Schlauchsystems sicher vermieden werden, ebenso eine Vertauschung der Einlegerichtung und damit der Pumprichtung. Besonders in medizintechnischen Geräten wie Dialysegeräten ist diese Forderung oft lebenswichtig für den angeschlossenen Patienten. Deshalb sind viele Pumpsegmente in diesem Bereich mit mechanischen Paßstücken und Codierungen versehen, die ein fehlerhaftes Einlegen verhindern. Die Anzahl der im Schlauchsystem vorhandenen Pumpsegmente richtet sich nach der Aufgabenstellung, es sind in der Medizintechnik Geräte mit weit mehr als zehn Pumpen und Schlauchklemmventilen im Einsatz, in der Labordiagnostik werden bis zum 40 Kanäle gleichzeitig benötigt (Beispiel Labor-Kassettenpumpe). Die Komplexität dieser Schlauchsysteme führt häufig zu einem schwer zu überschauenden Gewirr an Schläuchen, Pumpsegmenten und Verbindungselementen. Das richtige Einlegen aller Pumpsegmente wird insbesondere hier zum Problem. A hose system often contains several pump segments for different pumping tasks. Confusion of one pump segment with another must be done when inserting the Hose system can be avoided safely, as well as a reversal of the insertion direction and thus the pumping direction. Especially in medical devices such as dialysis machines this requirement is often vital for the connected patient. That's why there are many Provide pump segments in this area with mechanical adapters and coding, that prevent incorrect insertion. The number of existing in the hose system Pump segments are based on the task; in medical technology, they are devices with far more than ten pumps and hose clamp valves in use, in laboratory diagnostics up to 40 channels are required simultaneously (example laboratory cassette pump). The The complexity of these hose systems often leads to a tangle that is difficult to see on hoses, pump segments and connecting elements. The correct insertion of all Pump segments are a particular problem here.
Nachteilig sind ferner die aufwendige Herstellung eines solchen Schlauchsystems, mögliche Dichtigkeitsprobleme an den Klebestellen der Schlauchstücke und Verbindungselemente und Toträume und Sackgassen im Schlauchsystem durch die räumlich entfernte Anordnung von Pumpen. Ein weiteres generelles Problem von Schlauchpumpen ist die generell beschränkte Lebensdauer des Pumpsegmentes. Dadurch, daß der im Querschnitt eigentlich runde Schlauch zyklisch plattgewalzt wird, besteht die Gefahr, daß er speziell an seinen seitlich extrem belasteten Biegestellen vorzeitig bricht und deshalb undicht wird. Die Pumprollen müssen ja, um Druck aufbauen zu können, den Pumpschlauch so zudrücken, daß die Druckstelle wirklich dicht geschlossen ist, Okklusion auf Abstand Null. Durch diese Dichtigkeitsforderung im Pumpsegment ist der Biegeradius am Pumpsegmentquerschnitt beim Quetschen sehr klein, ein echter Knick. Daher sind generell nur wenige sehr flexible Materialien für diese Anforderungen als Pumpsegment geeignet (z.B. Silikon). Der Übergang dieser Materialien an das übrige Schlauchmaterial (meist PVC) stellt oft ein weiteres Problem dar.Another disadvantage is the costly production of such a hose system Tightness problems at the gluing points of the hose pieces and connecting elements and Dead spaces and dead ends in the hose system due to the spatially distant arrangement of Pump. Another general problem with peristaltic pumps is the generally limited one Lifetime of the pump segment. Because the tube is actually round in cross section is cyclically flat rolled, there is a risk that it is particularly at its laterally extremely loaded Bends break prematurely and therefore leak. The pump rollers have to To be able to build up pressure, press the pump hose so that the pressure point really is tightly closed, occlusion at zero distance. Through this tightness requirement in Pump segment, the bending radius at the pump segment cross section is very small when squeezing, a real kink. Therefore, there are generally only a few very flexible materials for these requirements suitable as a pump segment (e.g. silicone). The transition of these materials to that Other hose material (usually PVC) is often a further problem.
Für die genannten Schlauchsysteme kommen Rollenpumpen verschiedener Art zum Einsatz. Eine solche zeigt die US-A-3832 096. Diese Pumpe weist mehrere auf einer gemeinsamen Achse angeordnete Rotationskörper auf, die alle miteinander starr verbunden, von ein und demselben Motor angetrieben werden. Die Flußregulierung erfolgt durch Justierung des individuell einstellbaren Gegenlagers jedes einzelnen Pumpsegmentes gegenüber der sich gleichförmig drehenden Walze aller Rotationskörper. Bekannt sind auch Beispiele mit individuellem Antrieb jedes Rotationskörpers, z.B. US 5443 451. Sie zeigt einen aus vier nebeneinander angeordneten Pumpen bestehenden Vierer-Pumpenblock, bei dem jede Pumpe durch voneinander verschieden konstruierter Zahnrad-Wellenverbindungen angetrieben wird. Diese Antriebe sitzen rechts und links seitlich neben dem Pumpenblock, so daß weder ein weiteres Anreihen einer Pumpe noch eines weiteren Viererpumpenblockes möglich ist.Roller pumps of various types are used for the hose systems mentioned. One such is shown in US-A-3832 096. This pump has several on a common Axis arranged rotating body, all rigidly connected to each other, by one and be driven by the same motor. The flow is regulated by adjusting the individual adjustable counter bearing of each individual pump segment compared to the itself rotating roller of all rotating bodies. Examples with individual are also known Driving each rotating body, e.g. US 5443 451. It shows one out of four side by side arranged pumps existing four-pump block, in which each pump through from each other differently constructed gear shaft connections is driven. These drives sit to the right and left of the side of the pump block, so that no further baying a pump or a further four-pump block is possible.
Ein weiteres generelles Problem von Schlauchpumpen resultiert aus dem Umstand, daß jede zur Förderung notwendige Quetschung des Pumpsegmentes durch eine Rolle am Ende des Pumpsegmentes wieder aufgehoben wird, kurz nachdem am Anfang des Pumpsegmentes die nächste Quetschstelle dicht geschlossen ist (Druck-Übergabe an die nächste Rolle). Dieses Freigeben des Schlauches am Pumpsegment-Ende führt zu einem kurzzeitigen Rückströmen des bereits geförderten Materials, da das Schlauchvolumen sich dort wieder füllen muß, wo die Rolle das Pumpsegment verläßt, der Schlauch wird auch dort wieder rund. Daher haben Rollen- und Peristaltikpumpen eine systembedingte Diskontinuität im Fluß, sie fördern nicht gleichmäßig. Dies stellt ein wichtiges Problem für viele potentielle Anwendungsfälle dar, in denen ein konstanter Fluß vorausgesetzt werden muß.Another general problem with peristaltic pumps results from the fact that each the pump segment necessary to promote the pump segment by a roller at the end of the Pump segment is canceled again shortly after at the beginning of the pump segment the next pinch point is tightly closed (transfer of pressure to the next roll). This Releasing the hose at the end of the pump segment leads to a brief backflow of the already conveyed material, since the hose volume has to fill up again where the roller leaves the pump segment, the hose also becomes round there again. Therefore have Roller and peristaltic pumps have a systemic discontinuity in the river, they do not deliver evenly. This is an important problem for many potential use cases in which must be assumed to have a constant flow.
Ein entscheidender Fortschritt zur Lösung der dargestellten Problematik ist der Einsatz einer durch thermoplastische Formgebung hergestellten flexiblen Schlauchkassette mit eingeprägten Pumpsegmenten. Der Erfindung liegt die Aufgabe zugrunde, eine Rollenpumpe zum Betrieb mit derartigen Schlauchkassetten zu scharfen, die die im Stand der Technik dargestellten Nachteile überwindet.A decisive step forward in solving the problems presented is the use of a flexible tube cassette made by thermoplastic molding with embossed Pumping segments. The invention has for its object a roller pump for operation with such hose cassettes to sharpen that those shown in the prior art Overcomes disadvantages.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruches 1 gelöst. Die weiteren Ansprüche enthalten vorteilhafte Ausgestaltungen der Erfindung.According to the invention, this object is achieved by the features of claim 1. The further claims contain advantageous embodiments of the invention.
Mit der erfindungsgemäßen Rollenpumpe zum Betrieb mit Schlauchkassetten werden entscheidende Vorteile erzielt. Die schmalen Rollenpumpeneinheiten sind mit jeweils separaten Antrieben in beliebiger Zahl entsprechend den Erfordernissen der nach dem Flußbild des Pumpschlauchsystemes eingeprägten Pumpsegmente auf einer Achse modular anreihbar. Der Aufbau der Rollenpumpe wird damit servicefreundlich und übersichtlich. Eine doppelte Sicherheit gegenüber den herkömmlichen Magnetventilen wird durch Realisierung einer generellen Stop-Position jeder Rollenpumpeneinheit in der Weise erreicht, daß stillstehende Rollenpumpeneinheiten grundsätzlich in den Zustand gebracht werden, daß zwei Rollen gleichzeitig im Eingriff sind und eine Doppelklemmung erfolgt.With the roller pump according to the invention for operation with hose cassettes, decisive factors become Benefits achieved. The narrow roller pump units are each separate Drives in any number according to the requirements of the flow of the Pump hose system embossed pump segments modularly arranged on one axis. The The structure of the roller pump is thus easy to service and clear. A double security compared to conventional solenoid valves is realized by implementing a general Stop position of each roller pump unit in such a way that stationary roller pump units basically be brought into the state that two roles at the same time are engaged and double clamping takes place.
Die gesamte Steuerung des Gerätes erfolgt durch ein Mehrfach-Computer-System, das sich kontinuierlich gegenseitig überwacht. Im folgenden ist ein Ausführungsbeispiel der Erfindung dargestellt. In der zugehörigen Zeichnung zeigen:
- Fig. 1
- den prinzipiellen Aufbau der aus einzelnen Rollenpumpeneinheiten bestehenden Rollenpumpe,
- Fig. 2
- das Zusammenwirken der Rollenpumpeneinheiten mit den Pumpschlauchelementen der Schlauchkassette,
- Fig. 3
- einen Abrollkörper mit spezieller Gestaltung der Rollbahn im Outflow-Bereich.
- Fig. 1
- the basic structure of the roller pump consisting of individual roller pump units,
- Fig. 2
- the interaction of the roller pump units with the pump tube elements of the tube cassette,
- Fig. 3
- a rolling body with a special design of the runway in the outflow area.
In den Fig. 1 und 2 ist eine Rollenpumpe 1 zum Betrieb mit einer Schlauchkassette 2 dargestellt,
wobei die einzelnen Rollenpumpeneinheiten 4 auf einer gemeinsamen Achse 6 sitzen
und jeweils einen eigenen Antrieb 14 aufweisen. Die gefederten Andruckrollen 7, 8 des Rotationskörpers
5 jeder Rollenpumpeneinheit wirken auf ein Pumpschlauchsegment 3 der
Schlauchkassette 2.1 and 2, a roller pump 1 for operation with a
Die Schlauchkassette 2 wird bei geöffnetem Deckel 9 der Rollenpumpe 2 auf den Rollenpumpeneinheiten
4 plaziert. Mit Schließen des Deckels 9 ist das gesamte Schlauchsystem fertig
eingelegt.The
Alle Teile einer Rollenpumpeneinheit 4 sind auf einer Montageplatte 15 angeordnet.All parts of a
Zur Gewährleistung der Sicherheit sind in der Rollenpumpe 1 Einrichtungen zur Überwachung
der Rollenposition zur Gewährleistung einer Doppelklemmung bei Stillstand sowie zur
Überwachung der Lastschwankungen an jedem Motor und zur Federbruch-Erkennung vorgesehen.
Zur Thermostatisierung der Schlauchkassette 2 können im Deckel 9 Einrichtungen zur
Heizung bzw. Kühlung angeordnet sein.To ensure safety, there are 1 monitoring devices in the roller pump
the roller position to ensure double clamping when stationary and for
Monitoring of load fluctuations on each motor and provided for spring break detection.
To thermostate the
Fig. 3 zeigt die Gestaltung eines Abrollkörpers 10 mit zwei unterschiedlichen Abrollkurvenabschnitten
11, 12, wobei die Kurve 11 im Inflow-Bereich die Pumpfunktion realisiert und
deshalb einen Teilkreis beschreibt, die andere Kurve 12 im Outflow-Bereich von dieser
Kreisbahn in dem Maße abweicht, daß sich die Andruckrolle 7 so allmählich vom
Pumpschlauchsegment 3 löst, daß sich eine konstante Volumenfreigabe pro Drehwinkel im
Pumpschlauchsegment ergibt.3 shows the design of a
Claims (8)
- A roller pump for the peristaltic delivery of liquid and gaseous media, with several rotational bodies (5) arranged on a common axle (6) which in turn carry several compression rollers (7) and in each case are positioned opposite to a roller cradle (10) which forms the backing support for the pump tube (3) acted upon by the compression rollers (7), characterised by the roller pump (1) for the operation of tube cassettes (2), with pump tube segments (3) arranged parallel side by side, being designed such that narrow roller pump units (4) with rotational body (5), and each having their own drive (14) can be strung together on a common axle (6) in modular fashion, in numbers which correspond to the requirements of the pump tube segments (3) of the tube cassette (2) which are impressed in accordance with the flow pattern of the pump tube system, that the individual roller pump units (4) are each arranged on a mounting plate (15) and the rotational bodies (5) have individually sprung compression rollers (7, 8), and that each roller pump unit (4) has means for the detection and implementation of a general stop situation in a position in which two compression rollers (7, 8) safely seal off the respective pump tube segment (3) simultaneously.
- A roller pump in accordance with Claim 1, which in order to determine the general stop position of the roller pump unit (4) at which two sealing points simultaneously seal off the pump tube segment (3) is characterised by the roller backing track, designed in a suitable manner for the pump function, being made so long that the compression roller (7) which is in operation only leaves the pump segment (3) when the next compression roller (7) is likewise safely in operation.
- A roller pump in accordance with Claims 1 and 2, characterised by a positional measurement and/or a dynamic loading measurement being provided for determination of the stop position of a roller pump unit (4).
- A roller pump in accordance with Claim 1, characterised by devices for heating or cooling respectively being set in the cover (9) of the roller pump (1) for thermal stabilisation of the tube cassette (2).
- A roller pump in accordance with Claim 1 characterised by each roller cradle (10) in the inflow and/or outflow area having a rolling curve (11,12) such that linearisation of the flow characteristics is achieved.
- A roller pump in accordance with Claims 1 and 5, characterised by the roller cradle (10) being shaped such that this results in two rolling curves (11, 12) which are passed over by each compression roller (7) one after the other, and which each have a length that corresponds to the distance between two successive compression rollers (7), whereby one of the curves (11) implements the pump function and therefore describes a section of a circle, but the other (12) deviates from this circular track to the extent that the compression roller (7) gradually comes off the pump tube (3) so that a constant volume is released in the pump tube (3) per angle of rotation.
- A roller pump in accordance with Claims 1 and 5, characterised by the opposing arrangement of the two rolling curves (11, 12) leading to a linearisation of the suction due to the mirror-inverted installation of the roller cradle (10) or by a change in the direction of rotation of the pump, whereby the volumetric displacement of the compression roller (7) in the pump segment (3) is linearised by the rolling curve (12) in the inflow area in such a way that there is a constant increase in volume per angle of rotation, but the second rolling curve section (11) again describes a section of a circular track for the pump function.
- A roller pump in accordance with Claims 1 and 5, characterised by the combination of the input side and output side linearisation curves (each numbered 12), with a circular segment-shaped pump curve arranged in between, leading to a general linearisation of the delivery.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19856453 | 1998-12-09 | ||
| DE19856453A DE19856453C2 (en) | 1998-12-09 | 1998-12-09 | Roller pump for peristaltic delivery of liquid or gaseous media |
| PCT/EP1999/010092 WO2000034658A1 (en) | 1998-12-09 | 1999-12-07 | Roller pump for the peristaltic transport of liquid and gaseous media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1137886A1 EP1137886A1 (en) | 2001-10-04 |
| EP1137886B1 true EP1137886B1 (en) | 2002-07-31 |
Family
ID=7890289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99964604A Expired - Lifetime EP1137886B1 (en) | 1998-12-09 | 1999-12-07 | Roller pump for the peristaltic transport of liquid and gaseous media |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1137886B1 (en) |
| AT (1) | ATE221621T1 (en) |
| AU (1) | AU3039800A (en) |
| DE (2) | DE19856453C2 (en) |
| ES (1) | ES2189527T3 (en) |
| WO (1) | WO2000034658A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005031166A1 (en) * | 2003-09-26 | 2005-04-07 | Ismatec Sa, Laboratoriumstechnik | Peristaltic pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016107108B4 (en) * | 2016-04-18 | 2023-07-20 | Adceris Gmbh & Co. Kg | System for intravascular and/or extracorporeal cooling and/or heating of a human or animal body |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1561307A (en) * | 1968-01-24 | 1969-03-28 | ||
| US3832096A (en) * | 1971-03-03 | 1974-08-27 | Buchler Instr | Multitube peristaltic pump with individual programming control |
| CH545917A (en) * | 1971-11-24 | 1974-02-15 | ||
| DE3572381D1 (en) * | 1984-05-25 | 1989-09-21 | Isco Inc | Peristaltic pump |
| DE3726452A1 (en) * | 1987-08-08 | 1989-02-16 | Schael Wilfried | Peristaltic pump for medical purposes |
| US5230614A (en) * | 1992-06-03 | 1993-07-27 | Allergan, Inc. | Reduced pulsation tapered ramp pump head |
| US5261793A (en) * | 1992-08-05 | 1993-11-16 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Miniature mechanical vacuum pump |
| US5340290A (en) * | 1992-12-21 | 1994-08-23 | Scilog, Inc. | Double feed peristaltic pump |
| DE4327152C2 (en) * | 1993-08-12 | 1995-10-19 | Stoeckert Instr Gmbh | Roller pump |
| US5460493A (en) * | 1993-11-17 | 1995-10-24 | Baxter International Inc. | Organizer frame for holding an array of flexible tubing in alignment with one or more peristaltic pump rotors |
| US5443451A (en) * | 1993-11-17 | 1995-08-22 | Baxter International Inc. | Peristaltic pumping assembly |
| GB2285837B (en) * | 1994-01-24 | 1998-05-13 | Varian Australia | Peristaltic pump |
| DE9412228U1 (en) * | 1994-07-28 | 1994-09-22 | Loctite Europa Eeig | Peristaltic pump for precise dosing of small amounts of liquid |
-
1998
- 1998-12-09 DE DE19856453A patent/DE19856453C2/en not_active Expired - Fee Related
-
1999
- 1999-12-07 AU AU30398/00A patent/AU3039800A/en not_active Abandoned
- 1999-12-07 EP EP99964604A patent/EP1137886B1/en not_active Expired - Lifetime
- 1999-12-07 AT AT99964604T patent/ATE221621T1/en active
- 1999-12-07 WO PCT/EP1999/010092 patent/WO2000034658A1/en active IP Right Grant
- 1999-12-07 ES ES99964604T patent/ES2189527T3/en not_active Expired - Lifetime
- 1999-12-07 DE DE59902234T patent/DE59902234D1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005031166A1 (en) * | 2003-09-26 | 2005-04-07 | Ismatec Sa, Laboratoriumstechnik | Peristaltic pump |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1137886A1 (en) | 2001-10-04 |
| AU3039800A (en) | 2000-06-26 |
| ES2189527T3 (en) | 2003-07-01 |
| DE59902234D1 (en) | 2002-09-05 |
| ATE221621T1 (en) | 2002-08-15 |
| DE19856453A1 (en) | 2000-07-13 |
| DE19856453C2 (en) | 2002-04-25 |
| WO2000034658A1 (en) | 2000-06-15 |
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