EP1668249B1 - Pompe peristaltique - Google Patents

Pompe peristaltique Download PDF

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Publication number
EP1668249B1
EP1668249B1 EP04738032A EP04738032A EP1668249B1 EP 1668249 B1 EP1668249 B1 EP 1668249B1 EP 04738032 A EP04738032 A EP 04738032A EP 04738032 A EP04738032 A EP 04738032A EP 1668249 B1 EP1668249 B1 EP 1668249B1
Authority
EP
European Patent Office
Prior art keywords
tube
rotor
pump according
bed element
tube bed
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.)
Revoked
Application number
EP04738032A
Other languages
German (de)
English (en)
Other versions
EP1668249A1 (fr
Inventor
Stephan Michels
René Fässler
Corinne SCHÄRER
Daniel Saxer
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.)
ISMATEC LABORATORIUMSTECHNIK SA
Original Assignee
ISMATEC LABORATORIUMSTECHNIK SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34383945&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1668249(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ISMATEC LABORATORIUMSTECHNIK SA filed Critical ISMATEC LABORATORIUMSTECHNIK SA
Publication of EP1668249A1 publication Critical patent/EP1668249A1/fr
Application granted granted Critical
Publication of EP1668249B1 publication Critical patent/EP1668249B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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

Definitions

  • the invention relates to a peristaltic pump according to the preamble of claim 1.
  • Peristaltic pumps of the type in question are basically known. They are used to convey a wide variety of liquid or gaseous media.
  • peristaltic pumps A fundamental disadvantage of peristaltic pumps is that their delivery volume is not constant but more or less pulsates.
  • the torque to be applied by the drive motor per rotor revolution is also subject to certain fluctuations, which of course is just as undesirable.
  • the pump is provided with a pump housing in which the pump hose and a rotor provided with two constriction means in the form of rollers is arranged.
  • the two constricting means are diametrically opposite each other.
  • it is proposed to enlarge the pump hose in the inlet region of the constricting means in its cross section. This is intended to provide an increased volume for delivery in the entry region and to prevent backflow of the medium from the exit side into the pump hose. Regardless of whether the desired effect can be achieved with the described features, the torque to be applied by the drive motor per rotor revolution is subject to great fluctuations.
  • the object of the present invention is therefore to improve a trained according to the preamble of claim 1 pump such that it allows low-pulsation conveying, is low-wear and has a high efficiency that commercial hoses can be used and that of the drive motor per rotor revolution To be applied torque peaks are minimized.
  • FIG. 1 shows a six-channel peristaltic pump in an exploded view.
  • the pump consists essentially of a support frame 1, a hose receptacle 2, a rotor 3 and a connection element 4 with six hose sections 43 arranged thereon.
  • a gearwheel 5 provided for coupling to a drive motor, not shown, can also be seen.
  • the dimensionally stable formed support frame 1 forms together with the hose holder 2, the actual housing of the pump.
  • bearing bushes 11 are arranged on the support frame.
  • the two end sides of the support frame 1 are formed by plates 12, which are provided with slots 15a, 15b for fixing the support frame 1 and the entire pump.
  • the support frame 1 is provided on both sides with a plurality of slot-shaped recesses 13, in which locking elements 22 of the tube receptacle 2 are clamped fixable, as will be explained in more detail below.
  • the tube receptacle 2 has a substantially omega-shaped tubular bed body 25 which extends on the inside coaxial with the axis of rotation of the rotor 3 over approximately 130 ° circular arc portion-shaped and forms a tube bed.
  • omega-shaped means that the tube bed body 25 essentially has the shape of a large omega ( ⁇ ).
  • ⁇ omega
  • the tube bed is divided by groove-shaped recesses 21 into six sections, which serve to receive the flexible tube sections 43.
  • the tube bed body 25 could be provided with a substantially smooth inside.
  • the two legs 2a, 2b of the hose bed body 25 are provided on the outside with locking lugs 22, by means of which the hose receptacle 2 can be fixed to the slot-shaped recesses 13 of the support frame 1.
  • radially extending reinforcing ribs 23 and axially extending reinforcing ribs 24 are provided on the outside of the hose bed body 25 .
  • the radially extending reinforcing ribs 23 extend approximately 180 ° beyond the outside of the tube bed body 25.
  • the tube receptacle 2 is dimensioned such that the two legs 2a, 2b of the tube bed body 25 are elastically resilient endwise in the radial direction and rapid fixation of the tube receptacle 2 allow in the sense of a snap connection on the support frame 1.
  • the rotor 3 consists of a rotor body 31, which is provided with a central axis 32 which is inserted into the bearing bushes 11 of the support frame 1. On the rotor body 31 three formed in the form of rollers conveyor rollers 33 are rotatably mounted.
  • the rotor body 3 is preferably made of plastic while the central axis 32 and the conveyor rollers 33 are preferably made of metal.
  • the connecting element 4 consists of a base member 41, are attached to the twelve pipe sections 42. At the upper parts of these pipe sections 41 a total of six flexible hose sections 43 are arranged, which create after assembly of the pump on the inside of the hose bed body 25 and for the peristaltic promotion of a medium by the conveyor rollers 33 are squeezed. It is understood that the design of the inlet and outlet area is not limited to a six-channel pump, but the number of channels is virtually arbitrarily variable.
  • connection element 4 The assembly of the items shown to a pump can be done in a few steps by first the individual tube sections 43 are attached to the connection element 4 and then the rotor 3 is inserted from the side into the loops forming tube sections 43. Thereafter, the tube holder 2 is placed in a U-shape and the rotor 3 is inserted together with the connection element 4 and the tube sections 43 connected thereto from above. Subsequently, the support frame 1 is placed and exerted a pressure, so that the axis 32 of the rotor 3 and the locking lugs 22 snap. Finally, the connection element 4 is fixed to the support frame 1. In the embodiment shown here, the connection element 4 is fastened by means of screws.
  • connection element 4 for securing the connection element 4 a Snap connection are provided, which allows quick fixation of the connection element 4 on the support frame 1.
  • the entire assembly of the pump can be done very quickly and without the aid of tools from one side, which is an advantage in automatic production.
  • the Fig. 2 shows a first cross section through the composite pump. From this illustration, in particular, the rotor body 31 together with the three rotatably arranged thereon and rolling on the respective tube section 43 conveyor rollers 33a, 33b, 33c, the tube holder 2 with the omega-shaped tube bed body 25 and the radial and axial reinforcing ribs 23, 24 can be seen.
  • the reinforcing ribs 23, 24 ensure that the tube receptacle 2 is dimensionally stable and does not deform during operation under the load of the conveyor rollers 33a, 33b, 33c.
  • the area provided with the reference numeral 35 represents the inlet area
  • the area provided with the reference numeral 36 forms the outlet area 36 of the pump. Due to the omega-shaped design of the tube bed body 25 with a "soft" inlet and outlet areas, a continuous and low pulsation peristaltic delivery of the respective medium is ensured. Another advantage of the soft inlet and outlet is the reduction of torque peaks, which would burden the engine and transmission.
  • the pump can be operated both clockwise and counterclockwise.
  • Soft or continuous inlet and outlet region means that both the inlet region 35 and the outlet region 36 are designed in such a way that the conveying effective tube cross section is continuously reduced or enlarged by the conveying roller 33a, 33c rolling on the respective flexible tube section 43. It is important in this context that the tube bed body 25 is made accurately and has a high dimensional accuracy during operation, so that the predetermined distances between conveyor roller 33a, 33b, 33c and tube bed body 25 are maintained.
  • the pump Since the pump is designed symmetrically, it can also be operated bidirectionally, ie in both directions of rotation. From the illustration according to Fig. 2 It can also be seen that the respective tube section 43 is not completely squeezed together in the inlet region 35 and in the outlet region 36, while after the inlet region 35 it is completely squeezed out by the corresponding conveyor roller 33b and enables peristaltic delivery of the respective medium.
  • Such a designed pump is particularly suitable for the gentle conveyance of liquid media such as blood, since the blood cells are spared by the specific design of the inlet and outlet areas 35, 36.
  • hose receptacle 2 with a dimensionally stable hose bed body 25 and resilient legs 2a, 2b allows a very quick and easy installation by the hose receptacle 2 is simply clipped to the support frame.
  • the legs 2a, 2b must be resiliently resilient for assembly, the tube bed body 25 must retain high dimensional accuracy and precision geometry after fixation. This is u.a. achieved in that the resilient parts are positioned and stiffened by means of external positive support on the support frame 1.
  • Fig. 3 which shows the composite pump in a cross section between two tube sections 43, in particular the clamping fixation of the tube bed body 25 on the support frame 1 can be seen.
  • the locking elements 22 also engage positively on an upper, the slot-shaped recesses 13 delimiting web 14 of the support frame 1 at.
  • the legs 2a, 2b of the hose bed body 25 are supported by the web 14 of the support frame 1 on the outside form fit.
  • This design ensures, in particular, the precise adherence to the optimized distances between the conveyor rollers 33a, 33b, 33c and the tube bed body 25.
  • the individual, elastic tube sections 43 additionally support the fixation of the tube bed body 25 on the support frame 1, since the conveyor rollers 33a, 33b, 33c of the rotor 3 load the tube bed body 25 in the radial direction via the tube sections 43 so that its fixation on the support frame 1 is additionally supported ,
  • the connecting element 4 is designed and tuned to the hose receiving 2 and the rotor 3, that the single hose section 43 is substantially tangential in the hose bed body 25 of the hose receiving 2 in and out again.
  • the calculated loop is to be understood as a minimum.
  • the wrap is selected to be about 10 ° greater than the wrap angle calculated by the preceding formula.
  • wrap is meant that part of the tubular bed which comprises the rotor coaxially.
  • a pump configured according to the invention enables low-pulsation conveying, that it has a high degree of efficiency, is low-wear and is subject to slight torque fluctuations.
  • it is simple and compact, consists of a few parts, can be assembled quickly and without tools from a mounting direction, so that it is particularly suitable for automatic production.
  • the pump can also be operated bidirectionally and used universally. It is also particularly suitable for the gentle promotion of liquids such as blood.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Claims (14)

  1. Pompe péristaltique, comprenant un rotor (3) logé dans un boîtier, muni d'au moins un rouleau de déplacement (33a, 33b, 33c) logé de manière rotative, ainsi qu'un évidement tubulaire (2) destiné à loger au moins une section de tube flexible (43), qui, pour le déplacement péristaltique d'un milieu peut être compressé par le rouleau de déplacement (33a, 33b, 33c), caractérisée en ce que le logement tubulaire (2) est muni d'un corps de support de tube (25) destiné à loger au moins une section de tube (43), la zone d'admission et de sortie (35, 36) du corps de support de tube (25) étant conçue de telle sorte que le rouleau de déplacement (33a, 33b, 33c) de la section transversale de tube active pour le déplacement se déroulant sur la section de tube respective (43) diminue ou augmente de manière continue.
  2. Pompe selon la revendication 1, caractérisée en ce que le corps de support de tube (25), observé dans le sens de rotation du rotor (3), passe dans la zone d'admission (35) d'un passage d'écoulement d'une forme convexe à une forme concave.
  3. Pompe selon la revendication 1 ou 2, caractérisée en ce que le corps de support de tube (25), observé dans le sens de rotation du rotor (3), passe dans la zone de sortie (35) d'un passage d'écoulement d'une forme concave à une forme convexe.
  4. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins deux rouleaux de déplacement (33a, 33b, 33c) sont prévus et en ce que, concernant l'axe de rotation du rotor (3), la zone d'admission (35) est disposée par rapport à la zone de sortie (36), de telle sorte que lorsqu'un rouleau de déplacement (33a) se trouve dans la zone d'admission (35), un autre rouleau de déplacement (33c) se trouve en même temps dans la zone de sortie (36).
  5. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de support de tube (25) est conçu essentiellement en forme d'oméga.
  6. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de support de tube (25) enroule le rotor (3) au moins partiellement de manière coaxiale.
  7. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de support de tube (25) forme avec un cadre porteur (1) le boîtier de la pompe, le corps de support de tube (25) présentant à une extrémité deux branches (2a, 2b) flexibles à élasticité de ressort dans le sens radial, qui sont munies d'éléments d'encliquetage, au moyen desquels le corps de support de tube (25) peut être clipsé à la manière d'un assemblage à encliquetage sur des évidements (13) du cadre porteur (1).
  8. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de support de tube (25) est conçu de telle sorte que le respect de sa forme et la fixation sur le cadre porteur (1) soient renforcés, en plus de la contrainte propre à élasticité de ressort des branches (2a, 2b), par l'effet dynamique de la section de tube compressée ou des sections de tube compressées (43).
  9. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de support de tube (25) est muni d'une pluralité de nervures de renforcement (23, 24) s'étendant de manière radiale et/ou axiale.
  10. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de support de tube (25) est muni sur la face interne d'une pluralité d'évidements (21) en forme de rainure pour le logement et le guidage d'une pluralité de sections de tube (43).
  11. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que les rouleaux de déplacement (33a, 33b, 33c) sont conçus sous une forme cylindrique et s'étendent dans la direction axiale par-dessus les évidements (21) en forme de rainure.
  12. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que la section de tube respective (43) est guidée à l'intérieur et à nouveau à l'extérieur du corps de support de tube (25) de manière essentiellement tangentielle.
  13. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le rotor (3) est muni d'au moins deux rouleaux de déplacement (33a, 33b, 33c) et en ce que le corps de support de tube (25) enroule le rotor (3) de manière coaxiale sur au moins 360 ° divisé par le nombre de rouleaux de déplacement.
  14. Pompe selon l'une quelconque des revendications 1 à 12, caractérisée en ce que le rotor (3) est muni de trois rouleaux de déplacement (33a, 33b, 33c) et la zone d'admission (35) est décalée de 210 à 270 ° par rapport à la zone de sortie (36), de préférence d'environ 240 °, autour de l'axe de rotation du rotor (3).
EP04738032A 2003-09-26 2004-06-25 Pompe peristaltique Revoked EP1668249B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH16362003 2003-09-26
PCT/CH2004/000391 WO2005031167A1 (fr) 2003-09-26 2004-06-25 Pompe peristaltique

Publications (2)

Publication Number Publication Date
EP1668249A1 EP1668249A1 (fr) 2006-06-14
EP1668249B1 true EP1668249B1 (fr) 2008-03-19

Family

ID=34383945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04738032A Revoked EP1668249B1 (fr) 2003-09-26 2004-06-25 Pompe peristaltique

Country Status (5)

Country Link
US (1) US20070148010A1 (fr)
EP (1) EP1668249B1 (fr)
AT (1) ATE389805T1 (fr)
DE (1) DE502004006604D1 (fr)
WO (1) WO2005031167A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE496987T1 (de) 2006-05-22 2011-02-15 Biovest Int Inc Ausserkapilläres fluidzirkulationssystem und - verfahren
US8083503B2 (en) 2007-09-27 2011-12-27 Curlin Medical Inc. Peristaltic pump assembly and regulator therefor
US7934912B2 (en) 2007-09-27 2011-05-03 Curlin Medical Inc Peristaltic pump assembly with cassette and mounting pin arrangement
US8062008B2 (en) 2007-09-27 2011-11-22 Curlin Medical Inc. Peristaltic pump and removable cassette therefor
JP5695908B2 (ja) 2007-12-10 2015-04-08 バイエル メディカル ケア インコーポレーテッド 連続流体輸送システム及び流体輸送方法
GB2460025B (en) 2008-05-09 2010-04-28 Brightwell Dispensers Ltd Peristaltic pump with removable tube
US8292604B2 (en) * 2009-05-01 2012-10-23 Xerox Corporation Peristaltic pump
CN104912781B (zh) 2009-11-12 2017-04-12 株式会社威尔科 管固定件和管式泵
WO2012171030A2 (fr) 2011-06-10 2012-12-13 Biovest International, Inc. Procédé et appareil de production et de purification d'anticorps
EP2909302A4 (fr) 2012-08-28 2016-07-27 Biovest Int Inc Enfilade de biofabrication et procédé de production à grande échelle de cellules, virus et biomolécules
JP6680786B2 (ja) 2015-01-08 2020-04-15 セコ・エッセ・ピ・アＳｅｋｏ Ｓ．Ｐ．Ａ． ペリスタルティック・ポンプ、特に、ペリスタルティック・ドージングポンプ
US10788036B2 (en) 2015-01-08 2020-09-29 Seko S.P.A. Peristaltic pump
RU2714926C2 (ru) 2015-01-09 2020-02-21 БАЙЕР ХелсКер ЛЛСи Многофлюидная система доставки с многоразовым расходным комплектом и ее конструкционные особенности
CN115628206B (zh) * 2022-09-27 2023-07-25 深圳华星恒泰泵阀有限公司 一种便于管道限位的多组连接型蠕动泵

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US3011684A (en) * 1959-01-13 1961-12-05 Ernest R Corneil Liquid dispensing machine
DE2043525A1 (de) * 1970-09-02 1972-03-09 Daimler Benz Ag, 7000 Stuttgart Stoßstangenanordnung
US3832096A (en) * 1971-03-03 1974-08-27 Buchler Instr Multitube peristaltic pump with individual programming control
US3756752A (en) * 1971-12-20 1973-09-04 G Stenner Peristaltic pump
DE3320091A1 (de) * 1983-06-03 1984-12-06 Streicher, Irmgard, 7141 Beilstein Schlauchpumpe
US4552516A (en) * 1984-06-15 1985-11-12 Cole-Parmer Instrument Company Peristaltic pump
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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
EP0668443B1 (fr) * 1994-02-16 1997-12-10 Stöckert Instrumente GmbH Pompe à galets pour machines cardiopulmonaires
FR2719873A1 (fr) * 1994-05-11 1995-11-17 Debiotech Sa Dispositif de pompe péristaltique.
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US7118203B2 (en) * 2003-08-25 2006-10-10 Hewlett-Packard Development Company, L.P. Peristaltic pump

Also Published As

Publication number Publication date
DE502004006604D1 (de) 2008-04-30
EP1668249A1 (fr) 2006-06-14
US20070148010A1 (en) 2007-06-28
WO2005031167A1 (fr) 2005-04-07
ATE389805T1 (de) 2008-04-15

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