EP1137886B1 - Rollenpumpe zur peristaltischen förderung von flüssigen und gasförmigen medien - Google Patents
Rollenpumpe zur peristaltischen förderung von flüssigen und gasförmigen medien 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
Links
Images
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.
Description
- 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.
Claims (8)
- Rollenpumpe zur peristaltischen Förderung von flüssigen und gasförmigen Medien mit mehreren auf einer gemeinsamen Achse (6) angeordneten Rotationskörpern (5), die wiederum mehrere Andruckrollen (7) tragen und jeweils einem Abrollkörper (10) gegenübergestellt sind, der das Gegenlager für den von den Andruckrollen (7) beaufschlagten Pumpschlauch (3) bildet, dadurch gekennzeichnet, daß die Rollenpumpe (1) zum Betrieb von Schlauchkassetten (2) mit parallel nebeneinander angeordneten Pumpschlauchsegmenten (3) derart ausgebildet ist, daß schmale Rollenpumpeneinheiten (4) mit Rotationskörper (5) und jeweils eigenem Antrieb (14) in einer Zahl entsprechend den Erfordernissen der nach dem Flußbild des Pumpschlauchsystems eingeprägten Pumpschlauchsegmente (3) der Schlauchkassette (2) auf einer gemeinsamen Achse (6) modular anreihbar sind, daß die einzelnen Rollenpumpeneinheiten (4) jeweils auf einer Montageplatte (15) angeordnet sind und die Rotationskörper (5) einzeln gefederte Andruckrollen (7, 8) aufweisen und daß jede Rollenpumpeneinheit (4) Mittel zur Detektion und Realisierung einer generellen Stop-Position in einer Stellung aufweist, in der zwei Andruckrollen (7, 8) das jeweilige Pumpschlauchsegment (3) gleichzeitig sicher verschließen.
- Rollenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß zur Festlegung der generellen Stop-Position der Rollenpumpeneinheit (4), in der gleichzeitig zwei Dichtstellen das Pumpschlauchsegment (3) sicher verschließen, die zur Pumpfunktion in geeigneter Weise ausgebildete Abrollbahn so lang gestaltet ist, daß die im Eingriff befindliche Andruckrolle (7) erst dann das Pumpsegment (3) entläßt, wenn die nächste Andruckrolle (7) ebenfalls sicher im Eingriff ist.
- Rollenpumpe nach Anspruch 1 und 2, dadurch gekennzeichnet, daß zur Ermittlung der Stop-Position einer Rollenpumpeneinheit (4) eine Positionsmessung und/oder eine dynamische Belastungsmessung vorgesehen ist.
- Rollenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß zur Thermostatisierung der Schlauchkassette (2) im Deckel (9) der Rollenpumpe (1) Einrichtungen zur Heizung bzw. Kühlung angeordnet sind.
- Rollenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß der jeweilige Abrollkörper (10) im Inflow- und/oder Outflow-Bereich eine solche Abrollkurve (11, 12) aufweist, daß eine Linearisierung der Flußcharakteristik erreicht wird.
- Rollenpumpe nach Anspruch 1 und 5, dadurch gekennzeichnet, daß der Abrollkörper (10) so geformt ist, daß sich zwei Abrollkurven (11, 12) ergeben, die nacheinander von jeder Andruckrolle (7) durchfahren werden und die jeweils eine Länge aufweisen, die dem Abstand zweier aufeinanderfolgender Andruckrollen (7) entspricht, wobei eine der Kurven (11) die Pumpfunktion realisiert und deshalb einen Teilkreis beschreibt, die andere (12) jedoch von dieser Kreisbahn in dem Maße abweicht, daß sich die Andruckrolle (7) so allmählich vom Pumpschlauch (3) löst, daß sich eine konstante Volumenfreigabe pro Drehwinkel im Pumpschlauch (3) ergibt.
- Rollenpumpe nach Anspruch 1 und 5, dadurch gekennzeichnet, daß die entgegengesetzte Anordnung der beiden Abrollkurven (11, 12) durch spiegelverkehrten Einbau des Abrollkörpers (10) oder durch Änderung der Pumpdrehrichtung zu einer Linearisierung der Ansaugung führt, wobei nun die Volumenverdrängung der Andruckrolle (7) im Pumpsegment (3) durch die Abrollkurve (12) im Inflow-Bereich derart linearisiert wird, daß sich pro Drehwinkel eine konstante Volumenzunahme ergibt, der zweite Abrollkurvenabschnitt (11) jedoch wieder zur Pumpfunktion einen Kreisbahnabschnitt beschreibt.
- Rollenpumpe nach Anspruch 1 und 5, dadurch gekennzeichnet, daß die Kombination von eingangsseitiger und ausgangsseitiger Linearisierungskurve (je 12) mit dazwischen angeordneter kreissegmentförmiger Pumpkurve zu einer generellen Förderlinearisierung führt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19856453 | 1998-12-09 | ||
DE19856453A DE19856453C2 (de) | 1998-12-09 | 1998-12-09 | Rollenpumpe zur peristaltischen Förderung von flüssigen oder gasförmigen Medien |
PCT/EP1999/010092 WO2000034658A1 (de) | 1998-12-09 | 1999-12-07 | Rollenpumpe zur peristaltischen förderung von flüssigen und gasförmigen medien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1137886A1 EP1137886A1 (de) | 2001-10-04 |
EP1137886B1 true EP1137886B1 (de) | 2002-07-31 |
Family
ID=7890289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99964604A Expired - Lifetime EP1137886B1 (de) | 1998-12-09 | 1999-12-07 | Rollenpumpe zur peristaltischen förderung von flüssigen und gasförmigen medien |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1137886B1 (de) |
AT (1) | ATE221621T1 (de) |
AU (1) | AU3039800A (de) |
DE (2) | DE19856453C2 (de) |
ES (1) | ES2189527T3 (de) |
WO (1) | WO2000034658A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031166A1 (de) * | 2003-09-26 | 2005-04-07 | Ismatec Sa, Laboratoriumstechnik | Peristaltische pumpe |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016107108B4 (de) * | 2016-04-18 | 2023-07-20 | Adceris Gmbh & Co. Kg | System zur intravaskulären und/oder extrakorporalen Kühlung und/oder Erwärmung eines menschlichen oder tierischen Körpers |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1561307A (de) * | 1968-01-24 | 1969-03-28 | ||
US3832096A (en) * | 1971-03-03 | 1974-08-27 | Buchler Instr | Multitube peristaltic pump with individual programming control |
CH545917A (de) * | 1971-11-24 | 1974-02-15 | ||
EP0164020B1 (de) * | 1984-05-25 | 1989-08-16 | ISCO, Inc. | Peristaltikpumpe |
DE3726452A1 (de) * | 1987-08-08 | 1989-02-16 | Schael Wilfried | Schlauchpumpe fuer medizinische zwecke |
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 (de) * | 1993-08-12 | 1995-10-19 | Stoeckert Instr Gmbh | Rollenpumpe |
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 (de) * | 1994-07-28 | 1994-09-22 | Loctite Europa Eeig | Schlauchpumpe zur genauen Dosierung kleiner Flüssigkeitsmengen |
-
1998
- 1998-12-09 DE DE19856453A patent/DE19856453C2/de not_active Expired - Fee Related
-
1999
- 1999-12-07 AT AT99964604T patent/ATE221621T1/de active
- 1999-12-07 EP EP99964604A patent/EP1137886B1/de not_active Expired - Lifetime
- 1999-12-07 AU AU30398/00A patent/AU3039800A/en not_active Abandoned
- 1999-12-07 ES ES99964604T patent/ES2189527T3/es not_active Expired - Lifetime
- 1999-12-07 DE DE59902234T patent/DE59902234D1/de not_active Expired - Fee Related
- 1999-12-07 WO PCT/EP1999/010092 patent/WO2000034658A1/de active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031166A1 (de) * | 2003-09-26 | 2005-04-07 | Ismatec Sa, Laboratoriumstechnik | Peristaltische pumpe |
Also Published As
Publication number | Publication date |
---|---|
WO2000034658A1 (de) | 2000-06-15 |
DE59902234D1 (de) | 2002-09-05 |
ES2189527T3 (es) | 2003-07-01 |
AU3039800A (en) | 2000-06-26 |
DE19856453A1 (de) | 2000-07-13 |
ATE221621T1 (de) | 2002-08-15 |
DE19856453C2 (de) | 2002-04-25 |
EP1137886A1 (de) | 2001-10-04 |
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