EP1137886A1 - Pompe a rouleaux permettant le transport peristaltique de milieux fluides et gazeux - Google Patents

Pompe a rouleaux permettant le transport peristaltique de milieux fluides et gazeux

Info

Publication number
EP1137886A1
EP1137886A1 EP99964604A EP99964604A EP1137886A1 EP 1137886 A1 EP1137886 A1 EP 1137886A1 EP 99964604 A EP99964604 A EP 99964604A EP 99964604 A EP99964604 A EP 99964604A EP 1137886 A1 EP1137886 A1 EP 1137886A1
Authority
EP
European Patent Office
Prior art keywords
pump
roller
hose
roller pump
segment
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
EP99964604A
Other languages
German (de)
English (en)
Other versions
EP1137886B1 (fr
Inventor
Winfried Schimmelpfennig
Wilfried Riggers
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.)
PLASMA SELECT AG
Original Assignee
Rheotec 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 Rheotec AG filed Critical Rheotec AG
Publication of EP1137886A1 publication Critical patent/EP1137886A1/fr
Application granted granted Critical
Publication of EP1137886B1 publication Critical patent/EP1137886B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

  • Roller pump for peristaltic delivery of liquid and gaseous media
  • the invention relates to a roller pump for the peristaltic delivery of liquid and gaseous media.
  • roller pumps and peristaltic pumps are used for various conveying tasks, primarily for the transport of liquids, since they have no direct contact with the pumped medium.
  • Both types convey the pumped medium by squeezing a pump hose segment provided for this purpose partially tightly from the outside and then moving this pinch in the conveying direction, so that the conveyed material in the hose must also move on.
  • the next sealing point is created at the beginning of the pump segment, which then moves on with the next delivery portion.
  • the advantage of this method is that no part of the pump touches the material to be conveyed directly. This allows sterile and toxic substances to be conveyed.
  • the hose system with the pump segments is usually a disposable item, it is disposed of after use.
  • a hose system often contains several pump segments for different pumping tasks. A mix-up of one pump segment with another must be avoided when inserting the hose system, as well as a mix-up of the insertion direction and thus the pumping direction. This requirement is often vital for the connected patient, particularly in medical devices such as dialysis machines. For this reason, many pump segments in this area are provided with mechanical adapters and codes that prevent incorrect insertion. The number of pump segments in the hose system depends on the task; in medical technology, devices with far more than ten pumps and hose clamp valves are used; in laboratory diagnostics, up to 40 channels are required at the same time (example laboratory cassette pump). The complexity of these hose systems often leads to a confusing tangle of hoses, pump segments and connecting elements.
  • US Pat. No. 5,443,451 discloses a four-pump block consisting of four pumps arranged side by side, in which each pump is driven by gear shaft connections which are constructed differently from one another. These drives are located to the right and left of the side of the pump block, so that neither a further row of a pump nor another four-pump block is possible.
  • roller pump according to the invention for operation with hose cassettes.
  • Any number of the narrow roller pump units can be modularly arranged on one axis in accordance with the requirements of the pump segments embossed according to the flow diagram of the pump hose system.
  • the structure of the roller pump is thus easy to service and clear.
  • a double security compared to the conventional solenoid valves is finally achieved in that all stationary roller pump units are basically brought into the state that two rollers are engaged at the same time and double clamping takes place.
  • FIG 3 shows a rolling body with a special design of the runway in the outflow area.
  • roller pump 1 and 2 show a roller pump 1 for operation with a hose cassette 2, the individual roller pump units 4 sitting on a common axis 6 and each having their own drive 14.
  • the spring-loaded pressure rollers 7, 8 of the rotary tion body 5 of each roller pump unit act on a pump hose segment 3 of the hose cassette 2nd
  • the hose cassette 2 is placed on the roller pump units 4 with the cover 9 of the roller pump 2 open. When the cover 9 is closed, the entire hose system is fully inserted.
  • All parts of a roller pump unit 4 are arranged on a mounting plate 15.
  • roller pump 1 devices for monitoring the roller position are provided in the roller pump 1 to ensure double clamping when at a standstill as well as for monitoring the load fluctuations on each motor and for detecting broken springs.
  • 9 heating or cooling devices can be arranged in the cover.
  • roller pump according to claim 1 characterized in that the respective rolling body
  • (10) has such a rolling curve (11, 12) in the inflow and / or outflow area that a linearization of the flow characteristic is achieved.
  • roller pump according to claim 1 and 6 characterized in that the rolling body (10) is shaped so that there are two rolling curves (11, 12), which are passed successively by each pressure roller (7) and each have a length, which corresponds to the distance between two successive pressure rollers (7), one of the curves
  • roller pump according to Anspmch 1 and 6 characterized in that the opposite arrangement of the two rolling curves (11, 12) by mirror-inverted installation of the rolling body (10) or by changing the direction of pump rotation leads to a linearization of the suction, now the volume displacement of the pressure roller (7) in the pump segment (3) is linearized by the rolling curve (12) in the inflow area such that there is a constant increase in volume per angle of rotation, but the second rolling curve section (11) again describes a circular path section for the pump function.
  • roller pump according to Anspmch 1 and 6 characterized in that the combination of input-side and output-side linearization curve (12 each) with a segmented pump curve arranged in between leads to a general conveyor linearization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • External Artificial Organs (AREA)
EP99964604A 1998-12-09 1999-12-07 Pompe a rouleaux permettant le transport peristaltique de milieux fluides et gazeux Expired - Lifetime EP1137886B1 (fr)

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 (fr) 1998-12-09 1999-12-07 Pompe a rouleaux permettant le transport peristaltique de milieux fluides et gazeux

Publications (2)

Publication Number Publication Date
EP1137886A1 true EP1137886A1 (fr) 2001-10-04
EP1137886B1 EP1137886B1 (fr) 2002-07-31

Family

ID=7890289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99964604A Expired - Lifetime EP1137886B1 (fr) 1998-12-09 1999-12-07 Pompe a rouleaux permettant le transport peristaltique de milieux fluides et gazeux

Country Status (6)

Country Link
EP (1) EP1137886B1 (fr)
AT (1) ATE221621T1 (fr)
AU (1) AU3039800A (fr)
DE (2) DE19856453C2 (fr)
ES (1) ES2189527T3 (fr)
WO (1) WO2000034658A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005031166A1 (fr) * 2003-09-26 2005-04-07 Ismatec Sa, Laboratoriumstechnik Pompe peristaltique
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1561307A (fr) * 1968-01-24 1969-03-28
US3832096A (en) * 1971-03-03 1974-08-27 Buchler Instr Multitube peristaltic pump with individual programming control
CH545917A (fr) * 1971-11-24 1974-02-15
DE3572381D1 (en) * 1984-05-25 1989-09-21 Isco Inc Peristaltic pump
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0034658A1 *

Also Published As

Publication number Publication date
AU3039800A (en) 2000-06-26
ES2189527T3 (es) 2003-07-01
DE19856453C2 (de) 2002-04-25
DE59902234D1 (de) 2002-09-05
ATE221621T1 (de) 2002-08-15
DE19856453A1 (de) 2000-07-13
WO2000034658A1 (fr) 2000-06-15
EP1137886B1 (fr) 2002-07-31

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