EP0388596A1 - Tube de pompage pour une pompe péristaltique - Google Patents

Tube de pompage pour une pompe péristaltique Download PDF

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Publication number
EP0388596A1
EP0388596A1 EP90101673A EP90101673A EP0388596A1 EP 0388596 A1 EP0388596 A1 EP 0388596A1 EP 90101673 A EP90101673 A EP 90101673A EP 90101673 A EP90101673 A EP 90101673A EP 0388596 A1 EP0388596 A1 EP 0388596A1
Authority
EP
European Patent Office
Prior art keywords
hose
pump
webs
arcuate sections
tube
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
EP90101673A
Other languages
German (de)
English (en)
Other versions
EP0388596B1 (fr
Inventor
Dieter Rath
Friedrich V.D. Haar
Hans Josef Gerlach
Reinhard Knuth
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.)
B Braun Melsungen AG
Original Assignee
B Braun Melsungen 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 B Braun Melsungen AG filed Critical B Braun Melsungen AG
Publication of EP0388596A1 publication Critical patent/EP0388596A1/fr
Application granted granted Critical
Publication of EP0388596B1 publication Critical patent/EP0388596B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B43/0009—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 invention relates to a pump hose for a peristaltic pump.
  • peristaltic pumps or peristaltic pumps are used as infusion pumps. Such pumps enable the sterile transport of large quantities of infusion liquid.
  • the interchangeable pump tubing is an inexpensive, disposable product that is supplied in sterile form, can be inserted into the infusion device by the user, and is discarded after use.
  • high demands are placed on the pump hose with regard to flexing ability, elasticity, abrasion resistance and dimensional stability.
  • the delivery volume depends on the cross-sectional dimensions of the pump hose and its resilience.
  • the material used must be physiologically safe, i.e. be inert to the media used. Environmental influences such as temperature, air humidity, light and disinfectants must not influence the material.
  • Pump hoses for peristaltic pumps are usually made from highly elastic material, for example silicone, with high dimensional accuracy.
  • the pump tubing is inserted into the infusions with the help of special connecting pieces, which can also serve as fixing aids line used.
  • the known pump hoses have a round cross section. If a hose with a round cross-section is squeezed by external force, the material stress is uneven, with the kinks of the hose cross-section in particular being heavily stressed. This material load is further increased by the fact that the hose is not only squeezed to such an extent that the two hose wall parts are placed against one another, but also that an additional force is applied to ensure that the hose halves lie flat against each other, so that they can be squeezed securely.
  • a pump hose is known from DE 31 12 837 A1, in which two arcuate sections enclose the hose lumen, so that the hose lumen has the shape of an ellipse. On the sides, webs extend in opposite directions. These webs are used to position the pump hose inside the hose pump. Their thickness is not significantly greater than the wall thickness of the arcuate sections. When the pump hose is pressed together, the pressure rollers only act on the curved sections which are pressed against one another. There is no pressure or support in the area of the webs.
  • US Pat. No. 4,540,350 describes, in addition to various hose shapes, a pump hose which consists of two webs laid flat on top of one another and connected to one another along their edges. This creates side webs, the thickness of which is twice as large as the thickness of an arcuate section, but this hose is preformed to the compressed state. Such a hose has practically no resilience for the suction of liquid. There is also the risk that leaks occur in the area of the interconnected web edges, especially after frequent deformation of the hose.
  • the invention has for its object to provide a pump hose of the type specified in the preamble of claim 1, in which the local material load is reduced during squeezing, so that material damage is avoided and better resetting behavior is achieved.
  • the pump hose according to the invention has a lumen which is delimited by two arcuate sections abutting against one another, with kink lines being formed at the connection points in the hose interior.
  • the tube lumen thus has the cross section of a convex lens. This configuration of the tube walls reduces the force which has to be applied for the occlusive closure of the tube by the peristaltic pump.
  • the material compression is reduced by reducing the kink angle, which corresponds to the tangent angle, and also by the fact that less hose material has to be squeezed along the kink lines.
  • the pump hose is thus preformed in the direction of the intended compression, with the result that the material stresses arising during the squeezing are reduced. This also reduces or eliminates hose abrasion, particularly in the area of the two squeeze lines.
  • a substantial reduction in the material load is achieved in that webs project outwards from the connection points of the arcuate sections, the thickness of which corresponds approximately to the sum of the thicknesses of the two arcuate sections.
  • the invention achieves a reduction in particle abrasion due to the material relief of the pump hose.
  • the service life of the pump tubing is also extended and the constancy of the delivery volume is increased over the infusion time.
  • the webs also improve the lateral stability of the pump hose.
  • the restoring force of the pump hose creates the possibility of sucking in liquid. This requires a high restoring force of the pump hose. If the hydraulic pressure inside the hose is to be measured using a pressure sensor by pressing a pressure sensor against the outer wall of the pump hose, the restoring force of the pump hose falsifies the measured variable. If this restoring force is constant and not too great, it can be taken into account arithmetically and a usable measurement result can be obtained. In order to keep the restoring force in the area of the sensor as low as possible, according to a further embodiment of the invention, the wall thickness is reduced over a length section of the hose compared to the adjacent areas.
  • fixation pieces integrally formed on the pump hose are provided.
  • the pump hose including the fixing pieces is a molded part posed.
  • Such a design as a molded part allows an optimal shaping of the pump area and the pressure measuring zone.
  • Cross-sectional transitions and surface properties can be adapted to the desired flow conditions, ie cross-sectional transitions are carried out fluently and the roughness of the inner surface is chosen so that gas bubble adhesion is minimized.
  • the pump hose according to the invention is particularly suitable for use in a finger pump, in which the hose is arranged linearly and supported on one side, while several fingers act on the hose in succession from the opposite side and continuously squeeze the latter.
  • the pump hose can also be used with other peristaltic pumps, e.g. for roller pumps or swash plate pumps.
  • the hose therefore does not necessarily have to be straight, but it can have a curved course over its length.
  • the pump tube 10 of FIG. 1 has in cross section two arcuate sections 11, 12 which enclose the tube lumen 20 in such a way that the tube lumen has the cross-sectional shape of a convex lens.
  • Longitudinal concave fold lines 14 are formed along the connection points 13 of the arcuate sections 11 and 12. In these kink lines, the tangents to the inner sides of the tube sections 11 and 12 enclose an angle a which is less than 180 ° and is approximately 120 ° in the present exemplary embodiment.
  • the arcuate sections 11 and 12 are circular, the centers of both circles being offset from one another.
  • each web 15 corresponds approximately to the sum of the wall thicknesses of the two arcuate sections 11 and 12.
  • hose cross section is shown in the uncompressed state, that is, in the event that no external or internal forces act on the hose.
  • the tube 10 consists of a physiological harmless elastomer material with high resilience.
  • abutment 16 In the peristaltic pump, which is not shown in the remainder, there is an abutment 16 and a pressure finger 17.
  • the tube initially lies loosely on the abutment 16 with the one curved section 12 and the pressure finger 17 is arranged on the opposite side.
  • the webs 15 run parallel to the end faces of the abutment 16 and the pressure finger 17.
  • Fig. 2 shows the occlusion state of the tube 10, which is squeezed between the pressure finger 17 and the abutment 16.
  • the area of the tube lumen 20 is reduced to zero.
  • the webs prevent the squeezed tube 10 from being additionally squeezed by the pressure finger 17 and they prevent excessive deformation of the tube by a possibly incorrectly set infusion pump because they lie within the width of the abutment 16 and pressure finger 17.
  • the figures 3 to 5 show a pump hose 10 with the cross section explained with reference to FIG. 1.
  • the wall thickness is reduced on a length section 18 which is not exposed to the action of pressure fingers, so that the length section 18 can be used as a pressure measuring zone to which a pressure sensor measuring the internal pressure can be attached from the outside.
  • fixing pieces 19 are provided in the manner of sleeves. These fixing pieces 19 are used to attach and fix the hose in a peristaltic pump in a correct position.
  • the fixing pieces 19 also serve as connecting pieces for connecting infusion lines.
  • the transitions in which the cross section of the tube lumen 20 changes in the longitudinal direction are made continuously or without kinks in order to achieve a flow of fluid that is as laminar as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP90101673A 1989-03-23 1990-01-28 Tube de pompage pour une pompe péristaltique Expired - Lifetime EP0388596B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909657 1989-03-23
DE3909657A DE3909657A1 (de) 1989-03-23 1989-03-23 Pumpenschlauch fuer eine peristaltische pumpe

Publications (2)

Publication Number Publication Date
EP0388596A1 true EP0388596A1 (fr) 1990-09-26
EP0388596B1 EP0388596B1 (fr) 1993-08-04

Family

ID=6377101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101673A Expired - Lifetime EP0388596B1 (fr) 1989-03-23 1990-01-28 Tube de pompage pour une pompe péristaltique

Country Status (7)

Country Link
US (1) US5088522A (fr)
EP (1) EP0388596B1 (fr)
JP (1) JPH0315682A (fr)
AT (1) ATE92592T1 (fr)
DE (2) DE3909657A1 (fr)
DK (1) DK0388596T3 (fr)
ES (1) ES2042086T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5482446A (en) * 1994-03-09 1996-01-09 Baxter International Inc. Ambulatory infusion pump
WO1996036812A1 (fr) * 1995-05-15 1996-11-21 Volker Von Hertel Procede, pompe peristaltique et tuyau flexible pour l'apport d'un fluide
US5658133A (en) * 1994-03-09 1997-08-19 Baxter International Inc. Pump chamber back pressure dissipation apparatus and method
WO1999011932A1 (fr) * 1997-09-04 1999-03-11 Baxter International Inc. Pompe peristaltique de precision amelioree
EP2592270A1 (fr) * 2011-11-11 2013-05-15 Connectors Verbindungstechnik AG Tuyau flexible de pompage pour une pompe péristaltique
WO2016030868A2 (fr) 2014-08-29 2016-03-03 Leo Bühler Flexible élastique de pompe péristaltique, pompe péristaltique servant à refouler des matières coulantes ou de la poudre, unité servant à former des portions de matières coulantes ou de poudre, système comprenant plusieurs unités de ce type, procédé pour former des portions de matières coulantes ou de poudre
CN106704158A (zh) * 2017-01-17 2017-05-24 无锡市天利流体科技有限公司 一种高剂量泵
US10563646B2 (en) 2004-09-06 2020-02-18 Gambro Lundia Ab Peristaltic pump tube

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186431A (en) * 1989-09-22 1993-02-16 Yehuda Tamari Pressure sensitive valves for extracorporeal circuits
DE4126088C1 (en) * 1991-08-07 1993-01-14 B. Braun Melsungen Ag, 3508 Melsungen, De Peristaltic pump hose with inlet and outlet sections, and pumping middle one - has stationary, coaxial plug inside deformable part away from its wall
DE4126089A1 (de) * 1991-08-07 1993-02-11 Braun Melsungen Ag Pumpenschlauch fuer eine peristaltische pumpe
DE4126087A1 (de) * 1991-08-07 1993-02-11 Braun Melsungen Ag Pumpenschlauch fuer eine peristaltische pumpe
DE4222501C1 (fr) * 1992-07-09 1993-07-01 B. Braun Melsungen Ag, 3508 Melsungen, De
US5468129A (en) * 1994-08-05 1995-11-21 Cole Parmer Instrument Company Peristaltic pump
US5486099A (en) * 1994-12-14 1996-01-23 Michigan Critical Care Consultants, Inc. Peristaltic pump with occlusive inlet
AUPN695895A0 (en) * 1995-12-04 1996-01-04 J. Bertony Pty. Limited Continuous flow linear pump
DE29600517U1 (de) * 1996-01-13 1996-03-07 Rehau Ag + Co, 95111 Rehau Schlauchprofil
US5688400A (en) * 1996-03-07 1997-11-18 Environmental Treatment Facilities, Inc. Waste water treatment plant
US5778935A (en) * 1996-03-18 1998-07-14 Koch; Ruben Flexible replacement section for irrigation and water pipe
AUPN970096A0 (en) * 1996-05-06 1996-05-30 Pumping Systems Technologies Pty Limited Pseudo static peristaltic pump
US5758800A (en) * 1996-06-28 1998-06-02 D'andrade; Bruce M. Bladder for water gun
US8353908B2 (en) 1996-09-20 2013-01-15 Novasys Medical, Inc. Treatment of tissue in sphincters, sinuses, and orifices
CA2278239C (fr) 1997-01-17 2003-12-23 Niagara Pump Corporation Pompe lineaire peristaltique
EP1009944A4 (fr) * 1997-07-03 2004-06-30 Prec Dispensing Systems Ltd Mecanisme de pincement de tube souple
US9023031B2 (en) * 1997-08-13 2015-05-05 Verathon Inc. Noninvasive devices, methods, and systems for modifying tissues
US20100114087A1 (en) * 1998-02-19 2010-05-06 Edwards Stuart D Methods and devices for treating urinary incontinence
US6158619A (en) * 1998-06-11 2000-12-12 D'andrade Bruce M. Bladder gun with body mounted nozzle and quick-charged system
US6257448B1 (en) 1998-06-11 2001-07-10 D'andrade Bruce M. Backpack externally chargeable bladder gun assembly
US7306591B2 (en) 2000-10-02 2007-12-11 Novasys Medical, Inc. Apparatus and methods for treating female urinary incontinence
DE60313885T2 (de) * 2002-11-21 2008-01-10 California Institute Of Technology, Pasadena Hydroimpedanzpumpe
US20050158196A1 (en) * 2004-01-16 2005-07-21 Schroeder Alfred A. Method and apparatus for a molded tube and peristaltic pump
US7059580B1 (en) * 2004-08-25 2006-06-13 Nicholas Gralenski Pinch valve suited for metals and other rigid materials
US7722338B2 (en) * 2005-02-10 2010-05-25 Novasys Medical, Inc. Peristaltic pump providing simplified loading and improved tubing kink resistance
ATE464479T1 (de) 2005-12-01 2010-04-15 Michigan Critical Care Consult Ventrikuläre impulsdrehpumpe
US8387943B1 (en) 2007-01-11 2013-03-05 Harley H. Mattheis Pinch valve
US20090053084A1 (en) * 2007-08-21 2009-02-26 Klein Jeffrey A Roller pump and peristaltic tubing with atrium
ATE556729T1 (de) * 2008-08-05 2012-05-15 Michigan Critical Care Consultants Inc Gerät und verfahren zur überwachung und kontrolle des extrakorporalen blutflusses relativ zum flüssigkeitsstatus eines patienten
US8118572B2 (en) * 2009-02-09 2012-02-21 Klein Jeffrey A Peristaltic pump tubing with stopper and cooperative roller assembly housing having no moving parts
WO2010093946A1 (fr) * 2009-02-12 2010-08-19 Mc3, Inc. Pompe modulaire dotée d'une cartouche
US8308278B2 (en) 2010-04-02 2012-11-13 Xerox Corporation System and method for operating a conduit to transport fluid through the conduit
US9683562B2 (en) 2011-09-08 2017-06-20 Carefusion 303, Inc. Low-force pumping segment
DE102012108900A1 (de) 2011-09-21 2013-03-21 Gunter Krauss Schlauchpumpe
US8403927B1 (en) 2012-04-05 2013-03-26 William Bruce Shingleton Vasectomy devices and methods
DE102012012229A1 (de) * 2012-06-19 2013-12-19 Thomas Magnete Gmbh Dosierpumpe
DE102012023900A1 (de) 2012-12-07 2014-06-12 Meiko Maschinenbau Gmbh & Co. Kg Förderaggregat
DE102013005456A1 (de) * 2013-03-28 2014-10-02 Jakob Maier Verformbarer Strömungsleitungsabschnitt mit erhöhter Lebensdauer und Vorrichtung mit einem Strömungsleitungsabschnitt
USD733190S1 (en) * 2014-11-26 2015-06-30 Richard L. West Peristaltic pump cap
USD742928S1 (en) * 2015-03-24 2015-11-10 Fenwal, Inc. Peristaltic pump cap
US11806502B2 (en) 2015-11-20 2023-11-07 Tandem Diabetes Care Switzerland Sarl Micropump
EP3449125B1 (fr) 2016-04-29 2021-06-02 Saint-Gobain Performance Plastics Corporation Tube de pompe péristaltique à profil de lumière non uniforme
CN111432860B (zh) 2017-12-08 2023-08-08 坦德姆糖尿病护理瑞士有限责任公司 给药装置
CN110360086B (zh) * 2018-12-26 2024-03-19 保定雷弗流体科技有限公司 蠕动泵泵头弹性软管挤压部件、卡片、滚轮及蠕动泵泵头
US11058037B2 (en) * 2019-06-26 2021-07-06 Ford Global Technologies, Llc Peristaltic pump for on-board charger thermal management
JP6995150B2 (ja) * 2020-01-15 2022-01-14 株式会社コメッツ 輸液セット
US11241530B1 (en) 2020-11-23 2022-02-08 Amf Medical Sa Insulin patch pump having photoplethysmography module
CN112915310A (zh) * 2021-01-26 2021-06-08 浙江清华柔性电子技术研究院 体内植入式蠕动泵、蠕动泵控制器及体液转运系统
EP4049697B1 (fr) * 2021-02-04 2025-12-17 Micrel Medical Devices S.A. Segment de tube de pompe à perfusion péristaltique et dispositif de pompe à perfusion doté d'un tel segment de tube
US11529464B1 (en) 2021-06-01 2022-12-20 Amf Medical Sa Systems and methods for monitoring delivery of microdoses of medication
US11679199B2 (en) 2021-06-01 2023-06-20 Amf Medical Sa Systems and methods for delivering microdoses of medication
US12594377B2 (en) 2021-06-01 2026-04-07 Tandem Diabetes Care Switzerland Sàrl Systems and methods for delivering microdoses of medication
US11857757B2 (en) 2021-06-01 2024-01-02 Tandem Diabetes Care Switzerland Sàrl Systems and methods for delivering microdoses of medication
CA3236702A1 (fr) 2021-11-02 2023-05-11 Sepro Mineral Systems Corp. Facilitation de la commande du deplacement de fluide ou de boue dans un tube pliable
US11828387B2 (en) * 2021-12-30 2023-11-28 GE Precision Healthcare LLC Valves and methods of making valves for restricting airflow to and/or from a patient

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US3176622A (en) * 1962-06-06 1965-04-06 Fred B Pfeiffer Pump
CH586850A5 (en) * 1975-06-17 1977-04-15 Galea Joseph Peristaltic pump for liq. with flexible hose - has shafts in stator acting as planetary actuators on pump hose
FR2594496A1 (fr) * 1986-09-12 1987-08-21 Baxter Travenol Lab Conduit de transfert de fluides, notamment pour pompe peristaltique, et procede de realisation de celui-ci

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US2917002A (en) * 1956-11-23 1959-12-15 Mascaro Anthony Pump
US3176622A (en) * 1962-06-06 1965-04-06 Fred B Pfeiffer Pump
CH586850A5 (en) * 1975-06-17 1977-04-15 Galea Joseph Peristaltic pump for liq. with flexible hose - has shafts in stator acting as planetary actuators on pump hose
FR2594496A1 (fr) * 1986-09-12 1987-08-21 Baxter Travenol Lab Conduit de transfert de fluides, notamment pour pompe peristaltique, et procede de realisation de celui-ci

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5482446A (en) * 1994-03-09 1996-01-09 Baxter International Inc. Ambulatory infusion pump
US5658133A (en) * 1994-03-09 1997-08-19 Baxter International Inc. Pump chamber back pressure dissipation apparatus and method
WO1996036812A1 (fr) * 1995-05-15 1996-11-21 Volker Von Hertel Procede, pompe peristaltique et tuyau flexible pour l'apport d'un fluide
WO1999011932A1 (fr) * 1997-09-04 1999-03-11 Baxter International Inc. Pompe peristaltique de precision amelioree
US10563646B2 (en) 2004-09-06 2020-02-18 Gambro Lundia Ab Peristaltic pump tube
EP1787024B2 (fr) † 2004-09-06 2021-06-16 Gambro Lundia AB Tube de pompe peristaltique
US11060516B2 (en) 2004-09-06 2021-07-13 Gambro Lundia Ab Peristaltic pump tube
US12025115B2 (en) 2004-09-06 2024-07-02 Gambro Lundia Ab Peristaltic pump tube
WO2013068206A1 (fr) 2011-11-11 2013-05-16 Connectors Verbindungstechnik Ag Tubulure pour pompe péristaltique
US9086178B2 (en) 2011-11-11 2015-07-21 Connectors Verbindungstechnik Ag Pump hose for a peristaltic pump
EP2592270A1 (fr) * 2011-11-11 2013-05-15 Connectors Verbindungstechnik AG Tuyau flexible de pompage pour une pompe péristaltique
WO2016030868A2 (fr) 2014-08-29 2016-03-03 Leo Bühler Flexible élastique de pompe péristaltique, pompe péristaltique servant à refouler des matières coulantes ou de la poudre, unité servant à former des portions de matières coulantes ou de poudre, système comprenant plusieurs unités de ce type, procédé pour former des portions de matières coulantes ou de poudre
CN106704158A (zh) * 2017-01-17 2017-05-24 无锡市天利流体科技有限公司 一种高剂量泵

Also Published As

Publication number Publication date
ES2042086T3 (es) 1993-12-01
EP0388596B1 (fr) 1993-08-04
DE3909657A1 (de) 1990-09-27
JPH0315682A (ja) 1991-01-24
ATE92592T1 (de) 1993-08-15
DK0388596T3 (da) 1993-10-04
DE59002141D1 (de) 1993-09-09
US5088522A (en) 1992-02-18

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