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WO1997041353A1 - Pompe peristaltique orbitale a tube dynamique - Google Patents

Pompe peristaltique orbitale a tube dynamique Download PDF

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Publication number
WO1997041353A1
WO1997041353A1 PCT/AU1997/000242 AU9700242W WO9741353A1 WO 1997041353 A1 WO1997041353 A1 WO 1997041353A1 AU 9700242 W AU9700242 W AU 9700242W WO 9741353 A1 WO9741353 A1 WO 9741353A1
Authority
WO
WIPO (PCT)
Prior art keywords
ofthe
conduit
compression
pump according
pump
Prior art date
Application number
PCT/AU1997/000242
Other languages
English (en)
Inventor
Joseph Bertony
Original Assignee
Pumping Systems Technologies Pty. Limited
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
Priority claimed from AUPN9518A external-priority patent/AUPN951896A0/en
Priority claimed from AUPO2104A external-priority patent/AUPO210496A0/en
Application filed by Pumping Systems Technologies Pty. Limited filed Critical Pumping Systems Technologies Pty. Limited
Priority to AU25615/97A priority Critical patent/AU2561597A/en
Publication of WO1997041353A1 publication Critical patent/WO1997041353A1/fr

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
    • F04B43/123—Machines, pumps, or pumping installations having flexible working members having peristaltic action using an excenter as the squeezing element
    • 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
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0072—Special features particularities of the flexible members of tubular flexible members

Definitions

  • the present invention relates generally to pumps, and more particularly to peristaltic
  • Peristaltic pumps are well known, and typically comprise compression elements such as
  • peristaltic pumps have hitherto been generally confined to low
  • a pump comprising a
  • said pump further including peripheral support means operative to
  • the inner compression element comprises a cylindrical compression ring
  • support means preferably comprise a flexible substantially inelastic reinforcing element
  • a series of tensile reinforcing fibres preferably extend
  • peripheral support means preferably include at least one
  • reinforcing fibres may also be provided for more precise longitudinal shape control around
  • the peripheral support means may comprise an outer
  • the conduit is preferably disposed between the
  • the drive means include a central drive pinion and a revolving
  • the planetary gear engageable with the drive pinion.
  • the planetary gear is preferably disposed
  • the drive pinion In the preferred embodiment, the drive pinion, the planetary gear, and the
  • the drive surfaces may be essentially smooth, and formed from an elastomeric friction material such as neoprene or rubber.
  • the drive means may include a radial array of
  • a radial array of piezo-electric compression elements may be
  • the drive means may comprise an eccentric cam assembly.
  • the conduit has a circular transverse cross sectional
  • An elliptical shape advantageously divides the operational flexure into
  • Figure 1 is cross-sectional plan view showing a peristaltic pump according to the
  • Figure 2 is a cross-sectional view ofthe pump taken along line 2-2 of Figure 1;
  • Figure 3 is a cross-sectional view similar to Figure 2, showing the variation in cross-
  • Figure 4 is an enlarged cross-sectional view ofthe flexible conduit from the pump of
  • Figure 5 is a side elevation ofthe conduit showing the orientation ofthe primary
  • Figure 6 is a perspective view ofthe conduit, removed from the pump
  • Figure 7 is a cross-sectional view ofthe pump shown in Figure 1, inco ⁇ orating a
  • first form of drive means comprising a planetary gear train, according to the invention
  • Figure 8 shows a second form of drive means, including an eccentric cam
  • Figure 9 shows a third form of drive means inco ⁇ orating a radial array of hydraulic
  • Figure 10 shows a fourth form of drive means comprising a radial array of piezo ⁇
  • Figure 11 is a transverse sectional view showing the elliptical cross-sectional profile
  • Figure 12 is a transverse section showing the conduit of Figure 11 in the compressed
  • Figure 13 is a transverse section showing the conduit of Figure 11 in the expanded
  • the invention provides a peristaltic type pump 1 comprising a flexible
  • conduit or tube 2 extending around an inner compression ring 3.
  • the conduit defines an
  • An internal drive mechanism is selectively operable to effect rotary oscillation ofthe inner support ring 3 about a central axis 6, as discussed in
  • axis 6 induces peristaltic compression along the conduit in a compression plane 8 which is
  • the conduit is disposed in an annular clearance space
  • the outer support ring may be integral with or defined by an outer casing for the pump.
  • the conduit includes a series of flexible substantially
  • the conduit includes a series of flexible substantially inelastic compressive reinforcing
  • Supplementary oblique or cross ply reinforcing fibres 15 provide
  • the conduit further includes an inner lining 17 including longitudinally extending ribs 18 which enable the tube more readily to accommodate the
  • Figure 7 shows a first form of drive means 20 comprising a drive pinion 21 in
  • outer support ring is optional due to the longitudinal
  • drive pinion 21 causes the planetary gear 22 to rotate about its axis and simultaneously to
  • the drive pinion, planetary gear and the inner surface ofthe compression ring are
  • gear teeth may be replaced by substantially
  • smooth drive surfaces formed for example from an elastomeric material such as rubber, in
  • the drive transmission is essentially frictional.
  • the materials may be selected so as to allow slippage if a predetermined threshold pressure and hence torque
  • Figure 8 shows a variation on the embodiment of Figure 7, wherein the planetary
  • gear 22 is replaced by an eccentric cam 25 fixedly mounted on a central drive shaft 26.
  • ball or roller bearings 27 are disposed between the outer surface ofthe cam lobe
  • FIG. 9 shows a further alternative embodiment wherein the drive means take the
  • actuators as shown.
  • the thrust from the actuators is reacted at the central fixed hub 31.
  • At least three actuators are prefe ⁇ ed. However, there is no upper limit, subject to size
  • the maximum extent of travel, as well as the maximum threshold pressure, are pre-set to prevent over pressurisation ofthe system.
  • the maximum extent of orbital off-set may be predetermined to facilitate the
  • Figure 10 shows a further variation in drive means, wherein the hydraulic or
  • pneumatic actuators of Figure 9 are replaced by a radial a ⁇ ay of piezo-electric compression
  • invention is especially suitable for use on a miniature scale, for example in medical
  • the conduit has a generally circular cross-sectional profile in the fully expanded configuration. It is prefe ⁇ ed, however, that the tube is formed
  • the conduit is formed on an elliptical mandrel having a minor axis X and a major axis Y as shown in Figure 11. If the internal diameter ofthe conduit in the fully expanded circular condition is D, (see Figure 13) then the following relationships apply:
  • the pump according to the present invention is applicable to a wide range of conditions.
  • the invention is also well adapted for use in medical applications due to the minimal
  • the invention provides a simple, inexpensive, and
  • conduit is substantially increased, thereby enhancing reliability and reducing maintenance
  • the invention represents a commercially significant
  • the inner compression element need not comprise a ring, but could include a series of discrete elements cooperating to perform

Landscapes

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

Abstract

Cette pompe péristaltique (1) possède un tube souple (2) encerclant un anneau interne oscillant (3) et enfermé dans un anneau externe immobile. Un mécanisme moteur, par exemple un agencement radial d'actionneurs hydrauliques ou piézo-électriques, amène l'anneau interne (3) a effectuer une compression péristaltique le long du tube (2). Des renforts installés sur les parties radiales, interne et externe, de la paroi du tube, restreignent les mouvements de distorsion, d'extension, etc., aux segments radiaux intermédiaires de sorte qu'une force de compression s'exerçant dans une zone de ce tube entraîne une expansion dans une autre zone, diamétralement opposée, et renforce l'effet d'aspiration à l'entrée de la pompe. Lorsque le tube se trouve en état de relâchement, son profil est celui d'une ellipse de sorte que si une force de compression est exercée sur lui, ce profil s'élargit jusqu'à devenir circulaire dans la zone d'aspiration de la pompe.
PCT/AU1997/000242 1996-04-26 1997-04-18 Pompe peristaltique orbitale a tube dynamique WO1997041353A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25615/97A AU2561597A (en) 1996-04-26 1997-04-18 Orbital peristaltic pump with dynamic pump tube

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPN9518 1996-04-26
AUPN9518A AUPN951896A0 (en) 1996-04-26 1996-04-26 Orbital peristaltic pump
AUPO2104 1996-09-02
AUPO2104A AUPO210496A0 (en) 1996-09-02 1996-09-02 Dynamic peristaltic pump tube for orbital type pump

Publications (1)

Publication Number Publication Date
WO1997041353A1 true WO1997041353A1 (fr) 1997-11-06

Family

ID=25645161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000242 WO1997041353A1 (fr) 1996-04-26 1997-04-18 Pompe peristaltique orbitale a tube dynamique

Country Status (1)

Country Link
WO (1) WO1997041353A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1277958A3 (fr) * 2001-07-18 2004-01-02 Seiko Epson Corporation Pompe à tube
US6871551B2 (en) 2000-06-28 2005-03-29 Endress + Hauser Wetzer Gmbh + Co. Kg Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus
WO2009006648A1 (fr) * 2007-07-04 2009-01-08 Raymond William Hinks Pompe péristaltique
US7726956B2 (en) 2003-02-28 2010-06-01 Larox Flowsys Oy Combination assembly for managing a hose or like elastic pump tube in a positive displacement pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176622A (en) * 1962-06-06 1965-04-06 Fred B Pfeiffer Pump
US3565554A (en) * 1969-08-26 1971-02-23 Us Catheter & Instr Corp Reinforced compressible fluid transporting tube
US3887306A (en) * 1973-01-31 1975-06-03 Jan Willem Gerritsen Peristaltic pump and hose therefor
NL7316563A (en) * 1973-12-04 1975-06-06 Ir Wilhelmus Antonius Maria Po Commodity pump with peristaltic hose - has hose rotating in bearings at both ends and protected from damage
SU896253A1 (ru) * 1979-10-08 1982-01-07 Проектно-конструкторское бюро по проектированию оборудования для производства пластических масс и синтетических смол Перистальтический насос

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176622A (en) * 1962-06-06 1965-04-06 Fred B Pfeiffer Pump
US3565554A (en) * 1969-08-26 1971-02-23 Us Catheter & Instr Corp Reinforced compressible fluid transporting tube
US3887306A (en) * 1973-01-31 1975-06-03 Jan Willem Gerritsen Peristaltic pump and hose therefor
NL7316563A (en) * 1973-12-04 1975-06-06 Ir Wilhelmus Antonius Maria Po Commodity pump with peristaltic hose - has hose rotating in bearings at both ends and protected from damage
SU896253A1 (ru) * 1979-10-08 1982-01-07 Проектно-конструкторское бюро по проектированию оборудования для производства пластических масс и синтетических смол Перистальтический насос

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DERWENT ABSTRACT, Accession No. A1905J/47, Class Q56; & SU,A,896 253 (SYNTH RESIN PLASTIC) 7 January 1982. *
DERWENT ABSTRACT, Accession No. G5115/25, Class P64, Q56; & NL,A,73 16563 (POMPE W A M), 6 June 1975. *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6871551B2 (en) 2000-06-28 2005-03-29 Endress + Hauser Wetzer Gmbh + Co. Kg Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus
US7328626B2 (en) 2000-06-28 2008-02-12 Endress + Hauser Wetzer Gmbh + Co. Kg Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus
EP1277958A3 (fr) * 2001-07-18 2004-01-02 Seiko Epson Corporation Pompe à tube
US6918748B2 (en) 2001-07-18 2005-07-19 Seiko Epson Corporation Tube pump
US7726956B2 (en) 2003-02-28 2010-06-01 Larox Flowsys Oy Combination assembly for managing a hose or like elastic pump tube in a positive displacement pump
WO2009006648A1 (fr) * 2007-07-04 2009-01-08 Raymond William Hinks Pompe péristaltique

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