EP2536952A1 - Dispositif de sécurité pour une pompe péristaltique - Google Patents

Dispositif de sécurité pour une pompe péristaltique

Info

Publication number
EP2536952A1
EP2536952A1 EP11704232A EP11704232A EP2536952A1 EP 2536952 A1 EP2536952 A1 EP 2536952A1 EP 11704232 A EP11704232 A EP 11704232A EP 11704232 A EP11704232 A EP 11704232A EP 2536952 A1 EP2536952 A1 EP 2536952A1
Authority
EP
European Patent Office
Prior art keywords
rotor
roller pump
pump according
hose
marking
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
EP11704232A
Other languages
German (de)
English (en)
Other versions
EP2536952B1 (fr
Inventor
Thomas NÜRNBERGER
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.)
Fresenius Medical Care Deutschland GmbH
Original Assignee
Fresenius Medical Care Deutschland GmbH
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 Fresenius Medical Care Deutschland GmbH filed Critical Fresenius Medical Care Deutschland GmbH
Publication of EP2536952A1 publication Critical patent/EP2536952A1/fr
Application granted granted Critical
Publication of EP2536952B1 publication Critical patent/EP2536952B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04B43/1261—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 the rollers being placed at the outside of the tubular flexible member
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures

Definitions

  • the invention relates to a hose roller pump with interchangeable rotors, in particular for a dialysis.
  • Hose roller pumps are used for the occlusive pumping of liquids and are often used for example in laboratories, Kleinprodu ctionsanlagen, analyzers, infusion pumps and in particular in dialysis. They have a stator and a rotor revolving therein with at least two squeezing rollers, which occlude a delivery hose inserted between the stator and the rotor and thus drive a liquid present in the delivery hose.
  • hose roller pumps it is usually possible to separate the rotor, for example, for the purpose of cleaning, repair or replacement of the rotor to adapt to different tube materials, diameters and / or wall thicknesses of the rotor mount, for example, the pressure springs for the squeezing rollers of the rotor or to replace the rotor with another rotor design.
  • many hose reel pumps particularly those used in laboratories, small scale production facilities, analyzers and dialyzers, have multiple conveyors with interchangeable rotors, however can have different properties. These properties may depend, for example, on the delivery hoses used, other components in the delivery flow of the hose roller pump, the viscosity of the medium to be delivered, the desired delivery pressures and other parameters.
  • the pinch rollers of the rotor can be mounted resiliently perpendicular to the direction of rotation, so that they yield to a pressure building up in the hose.
  • the spring constant of the storage determines the maximum occlusion pressure and thus limits the delivery pressure of the hose roller pump. This can be technically realized, for example, by virtue of the fact that the rotor has two arms which can be displaced parallel to one another in a spring-like manner, at the ends of which the pinch rollers are rotatably mounted.
  • the spring constant of the rotors can be different, for example, in hose roller pumps for dialyzers for the pumped liquid, the inserted hose set with the delivery hose, other components used (such as filters, membranes, dialyzers, membranes and / or drip chambers) and the type of treatment.
  • the rotor of the hose roller pump of a dialysis device for the substituate solution can be equipped with a lower spring force, that is also with a lower maximum occlusion pressure, than, for example, the rotor of the blood pump.
  • the conveyors of the tube roller pumps are otherwise identical, so that each rotor can be inserted into each stator.
  • the rotors of the pumps are now removed from the stators to better effect the dialyzer and the rotors to be able to disinfect.
  • the rotors are usually provided in the prior art with stickers, but which can peel off over time. Even if the sticker is intact, there is a risk of human error when upgrading, if the label or marking on the stickers is not read correctly and therefore not on the inserted tube set, the components used (such as filters, membranes, dialyzers and / or drip chambers) and the type of treatment is adjusted.
  • a hose reel pump preferably for a dialysis device, is specified, having a rotor receptacle, a rotor which, with the rotor receptacle, can, and preferably, comprises a marking device, by the nature of which and / or arranging at least one characteristic of the rotor, and a safety device having at least one detection device, by means of which the at least one characteristic of the rotor coded by the marking device (s) can be controlled, wherein the Safety device can be activated depending on at least one of these properties of the rotor.
  • a hose reel pump as set forth in claim 1, it is possible to automatically control, for example, the rotor type or setting of the rotor or at least one property of the rotor mounted in a conveyor of the hose roller pump by means of the at least one detecting device of the safety device and in case a faulty upgrade to activate the safety device and thus trigger a suitable action.
  • Another conceivable possibility would be, for example, to attach such a detection device to an adjusting element of the pressure spring, whereby the detection of the position of this detection device can be used to automatically control the initial tension and thus the pressing force of the adjusting spring and thus the occlusion pressure. Even in routine operation by poorly trained personnel or in hectic hospital situations can be reliably ruled out a misadministration of the conveyors.
  • the tube roller pump when the tube roller pump is put into operation with a rotor having incorrect or unsuitable properties, the tube roller pump can be deactivated by the safety device and / or a warning signal can be triggered.
  • the safety device when the tube roller pump is put into operation with a rotor having incorrect or unsuitable properties, the tube roller pump can be deactivated by the safety device and / or a warning signal can be triggered.
  • a rotor with incorrect or unsuitable properties is understood to mean a rotor which does not comply with the requirements of the particular application with respect to its type, its setting (in the case of a rotor with adjustable pressure force, for example) or at least one rotor characteristic.
  • the actual value of the at least one property of the rotor is not the same for the operating conditions required or optimal setpoint coincides, or that the actual value of the at least one property of the rotor is not within a predetermined value range for the operating conditions.
  • the marking device (s) may be arranged with respect to the rotor so that it is guided past the at least one detection device during rotation of the rotor and thereby a signal pattern is generated by the at least one detection device, through which the at least one property of the rotor can be detected.
  • the signal pattern of the at least one detection device can be evaluated with a rotational speed signal from a hose roller pump drive.
  • a drive signal of a stepping motor, a motor-own one, for example generated by the commutator, or a separate speedometer or a speed signal, or any other rotational speed signal can be used as the rotational speed signal.
  • each of the marking devices can be detected by at least two detection devices at each revolution. This represents a further possibility for, for example, determining the rotational speed of the rotor and detecting precisely or independently the speed of rotation of a wedge between two marking devices or detecting the extension of a marking device, and to differentiate between different dimensions of marking devices.
  • the speed and / or direction of rotation of the rotor can also be determined from the signal pattern of the at least one detection device. If, for example, only one marking device or only one marking device of a certain type or several marking devices is distributed over a rotation angle range of less than 180 ° in a certain distance from the rotation axis, the same detection devices can be used for the detection and control of the at least one property of Rotor are responsible, g leichzeitig also the rotational speed and, if appropriate arrangement of the marking devices also detect the direction of rotation of the rotor.
  • the marking device (s) can be detected without contact magnetically, electromagnetically and / or optically. This ensures a particularly reliable and trouble-free operation and a similar detection of the marking devices.
  • At least one of the detection devices may comprise a magnetic field sensor, preferably a Hall sensor.
  • a magnetic field sensor preferably a Hall sensor.
  • At least one of the detection devices may comprise a preferably electromagnetic or inductive proximity sensor.
  • a preferably electromagnetic or inductive proximity sensor For example, by induction of eddy currents, tuning circuit by changing the inductance, but also by capacitance change or optical measurements (IR reflectivity changes), the marking devices can be detected easily and reliably.
  • At least one marking device may comprise a transponder device.
  • This transponder device can preferably be an RFID transponder ("Radio Frequency / Dentification" transponder) or RFID chip, thereby enabling a plurality or a multiplicity of information from the rotor to be reliably and inexpensively transmitted by a single marking device
  • RFID transponder Radio Frequency / Dentification
  • RFID chip thereby enabling a plurality or a multiplicity of information from the rotor to be reliably and inexpensively transmitted by a single marking device
  • the marking device (s) can be arranged at different distances from the axis of rotation of the rotor receptacle.
  • the number of coding options for example, for properties of the rotor or other information such as speed and / or direction of rotation can be easily expanded.
  • the marking devices can be arranged more advantageous even with narrow rotor arms and the detection accuracy can be increased even with simple and inexpensive detection devices.
  • the at least one property of the rotor taking into account properties of other components - in particular of hoses, filter, membrane devices, dialyzers and / or further rotors and / or work programs and / or other data - in particular treatment and / or patient data - are evaluated.
  • a large number of parameters relevant to the correct selection of the rotor can be taken into account, thus ensuring maximum safety and flexibility.
  • Treatment and / or patient data could, for example, be read out and transferred from a computer system, possibly in alignment with a patient chip card or another identification or storage system. It would also be conceivable to read data from a barcode of a patient file or index card in order to take into account, for example, patient data, information about the course of treatment, type of dialysis, replacement membranes used, ultrafiltration fluid, substituate solution, flow rates, treatment durations. This could possibly lead to the entire programming and control of the dialysis machine being made automatable.
  • FIG. 1 is a schematic representation of a rotating in a stator rotor of a conveyor of a hose roller pump
  • FIG. 1 shows the schematic representation of a rotor (2) revolving in a stator (1) of a conveying device of a hose roller pump.
  • the rotor (2) sits (releasably connected) on the rotor (2) bearing rotor receptacle which rotates about the axis of rotation (3) and drives the rotor (2).
  • the rotor (2) has two substantially radially displaceable rotor rolls (5) provided with pinch rollers (or pressure rollers) on one side and having a defined spring force of a spring (not shown here) in the direction of the pinch rollers (4).
  • the conveying hose which is likewise not shown here, lies against the inside of the wall of the stator (1) and is occluded by the spring-loaded squeezing rollers (4), thus driving and conveying a liquid in the conveying hose in a known manner.
  • a total of 2 x 2 x 3 12 marking holes or Markseintiefept (6, 7), which can accommodate marking devices and by casting with a potting compound permanently hermetically sealed.
  • marking indentations (6) contain as marking devices electrically conductive metal plates or inlays (eg copper, iron or aluminum plates; black filled circles), other marking indentations (7) contain no marking devices (open circles).
  • the metal plates are periodically brought into the magnetic field of the proximity sensors (8, 9, 10).
  • eddy currents are induced in the metal plates moving in the magnetic field, energy being withdrawn from the magnetic field, which in turn can be detected in the power consumption of the proximity sensors (8, 9, 10).
  • the number and the geometric distribution of the electrically conductive plates can now code different features of the rotor (2).
  • the signal S3 in the transient signal curve shown below serves to detect the rotor revolutions, wherein in FIG. 2 the rising edge of the sensor signals is triggered.
  • S1 and S2 encode in their transient course a relevant feature of the rotor.
  • the number of sensors and metal plates in Figure 1 are arbitrary.
  • each rotor is equipped with at least one magnet for detecting the direction of rotation.
  • the direction of rotation is detected.
  • the width of the magnet can be determined by a Hall sensor.
  • a specific simplified embodiment results if the pump drive has a tachometer output that generates a fixed number of pulses per rotor revolution.
  • the number of tacho-pulses changes when the magnet passes over and can thus be used to detect the magnet width.
  • the rotor 1 has a wider magnet in the rotor than the rotor 2 and can be detected by detecting the number of Tachopulse when driving over the magnet.
  • the monitoring of the rotors can be active during the entire running time of the machine, depending on the selected treatment method. It makes sense, however, immediately after the upgrade, ie, for example, when filling the hose system, the test is performed. In this way, the user can then on time before the start of treatment on be pointed out a loading of the conveyor with a wrong or unsuitable rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne une pompe péristaltique, de préférence pour un dispositif de dialyse, ladite pompe présentant un logement de rotor, et un rotor pouvant être relié au logement de rotor. Ce rotor présente de préférence une pluralité de dispositifs de marquage, dont le type et/ou l'agencement permettent de coder au moins une propriété du rotor. La pompe péristaltique présente en outre un dispositif de sécurité muni d'au moins un dispositif de détection permettant de contrôler la ou les propriétés du rotor codées par le ou les dispositifs de marquage, et pouvant être activé en fonction d'au moins une de ces propriétés du rotor.
EP11704232.5A 2010-02-18 2011-02-18 Dispositif de sécurité pour une pompe péristaltique Active EP2536952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002133.4A DE102010002133B4 (de) 2010-02-18 2010-02-18 Sicherheitseinrichtung für eine Schlauchrollenpumpe
PCT/EP2011/052389 WO2011101430A1 (fr) 2010-02-18 2011-02-18 Dispositif de sécurité pour une pompe péristaltique

Publications (2)

Publication Number Publication Date
EP2536952A1 true EP2536952A1 (fr) 2012-12-26
EP2536952B1 EP2536952B1 (fr) 2019-04-03

Family

ID=43858367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11704232.5A Active EP2536952B1 (fr) 2010-02-18 2011-02-18 Dispositif de sécurité pour une pompe péristaltique

Country Status (4)

Country Link
EP (1) EP2536952B1 (fr)
JP (1) JP5889803B2 (fr)
DE (1) DE102010002133B4 (fr)
WO (1) WO2011101430A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012009627U1 (de) * 2012-10-09 2013-10-11 Hirschmann Laborgeräte GmbH & Co. KG Schlauchpumpe
DE102013003077A1 (de) 2013-02-23 2014-03-20 Daimler Ag Steuerung einer Scheibenreinigungsanlage eines Kraftfahrzeugs
DE102014118853A1 (de) 2014-12-17 2016-06-23 Hans Heidolph Gmbh & Co. Kg Laborgerät
DE102015122347A1 (de) 2015-12-21 2017-06-22 Fresenius Medical Care Deutschland Gmbh Sensorgesteuerte Displayausgabe für Dialysemaschinen
KR101994070B1 (ko) * 2019-02-11 2019-06-27 전은수 호스 롤러 펌프
EP4344713A1 (fr) * 2022-09-29 2024-04-03 NextKidney SA Pompe surveillée par capteur

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
GB2102503A (en) * 1981-06-08 1983-02-02 Warner Lambert Co Peristaltic fluid-machines
DE3726452A1 (de) * 1987-08-08 1989-02-16 Schael Wilfried Schlauchpumpe fuer medizinische zwecke
US4884013A (en) * 1988-01-15 1989-11-28 Sherwood Medical Company Motor unit for a fluid pump and method of operation
DE4002061A1 (de) * 1990-01-22 1991-07-25 Akad Wissenschaften Ddr Exzenter-laborschlauchpumpe
EP0513421A1 (fr) * 1991-05-17 1992-11-19 Fresenius AG Dispositif pour déterminer le volume de sang traité à l'hémodialyse
JPH0835487A (ja) * 1994-07-22 1996-02-06 Ikari Shodoku Kk 定量供給用のチューブポンプおよび定量供給装置
US5928177A (en) * 1995-09-15 1999-07-27 Cobe Laboratories, Inc. Technique for loading a pump header within a peristaltic pump of a dialysis machine
JP3423633B2 (ja) * 1998-07-02 2003-07-07 株式会社ジェイ・エム・エス 輸液用ポンプ装置
JP3900355B2 (ja) * 2003-09-29 2007-04-04 日本サーボ株式会社 チューブポンプ
US7572113B2 (en) * 2005-03-21 2009-08-11 Lancer Partnership, Ltd. Methods and apparatus for pumping and dispensing
DE102007020573B4 (de) * 2007-05-02 2014-12-04 Fresenius Medical Care Deutschland Gmbh Schlauchrollenpumpe

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
WO2011101430A1 (fr) 2011-08-25
CN102762863A (zh) 2012-10-31
DE102010002133B4 (de) 2015-11-12
JP5889803B2 (ja) 2016-03-22
JP2013519478A (ja) 2013-05-30
EP2536952B1 (fr) 2019-04-03
DE102010002133A1 (de) 2011-08-18

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