EP1522727A2 - Pompe de dosage - Google Patents

Pompe de dosage Download PDF

Info

Publication number
EP1522727A2
EP1522727A2 EP04023691A EP04023691A EP1522727A2 EP 1522727 A2 EP1522727 A2 EP 1522727A2 EP 04023691 A EP04023691 A EP 04023691A EP 04023691 A EP04023691 A EP 04023691A EP 1522727 A2 EP1522727 A2 EP 1522727A2
Authority
EP
European Patent Office
Prior art keywords
syringes
dosing pump
pump according
base plate
control device
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.)
Withdrawn
Application number
EP04023691A
Other languages
German (de)
English (en)
Other versions
EP1522727A3 (fr
Inventor
Willi Dipl.-Ing. Hempelmann
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.)
MMT GmbH
Original Assignee
MMT 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 MMT GmbH filed Critical MMT GmbH
Publication of EP1522727A2 publication Critical patent/EP1522727A2/fr
Publication of EP1522727A3 publication Critical patent/EP1522727A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
    • F04B7/0026—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an oscillating movement
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time

Definitions

  • the invention relates to a metering pump, in particular for very small quantities.
  • the invention provides a dosing pump to be proposed, which has a simple structure has and can be used in conventional syringes as pumping elements.
  • FIG. 1 shows a front view of the metering pump without the syringes inserted therein, which are shown in FIG. 1a are shown schematically.
  • a base plate 1 ( Figures 2 and 3) approximately in the middle of a clamping device 2 fixedly mounted on the front clamping screws 2a for the syringes 3 to be used in the clamping device or their cylinders 3c are provided.
  • six clamping screws 2a for six syringes 3 provided.
  • six V-shaped grooves 2b are formed, wherein in each case a syringe barrel is inserted into such a V-shaped groove 2b.
  • this Grooves 2b opposite is an elongated clamping piece 2c with a corresponding V-shaped Nut arranged, which is in communication with the associated clamping screw 2a and can be moved back and forth by them in the direction of the V-groove 2b to a syringe barrel clamp or release, as shown in FIG. 3.
  • Fig. 1a shows schematically that the piston rod 3b in one of the fork-shaped Holder 5b is located.
  • Fig. 3 clamping screws are reproduced (Fig. 3), through which a Pusher plate 3a of a piston can be clamped without clearance in the transverse groove 5a.
  • a preferably transparent housing part 1b is reproduced, which is the piston slide covers.
  • a control device 6 at the Base plate 1 is mounted, with the individual syringes 3 via preferably flexible Hose lines 3d are connected, as shown in FIG. 1a.
  • the control device 6 is preferably designed as a rotary valve control, as shown in FIG. 4.
  • a control block 6a with connecting lines 6b a rod-shaped rotary valve 6c is inserted, on its circumference connecting channels 6c 'for connecting and disconnecting the lines 6b are formed.
  • the rod-shaped rotary valve 6 c is covered by a cover 6 d with a corresponding semicircular groove held by means of screws with the control block 6a connected is.
  • a U-shaped component (Figure 4e) is on the control block 6a mounted in the connection holes 6e 'are formed for connecting lines through which Aspirated medium and discharged again after the pumping.
  • a control bracket 6f fixed with a fork at the free end, which passes through a recess 6d 'in the cover 6d protrudes (Fig. 4a and 4c).
  • This control bar 6f protrudes through an opening the base plate 1 and is connected to a pin 9e of a U-shaped reversing bracket 9 in Intervention, which will be explained in more detail with reference to FIGS. 2 and 3.
  • the two piston slides 5 and 5 ' are provided with a clamping jaw 5c and 5c', respectively. provided, which projects through an opening 1a of the base plate 1 and with a metal band. 7 is firmly connected, which is guided around two spaced rollers in the form of rolling bearings 7a and 7a ' is, in a recess on the back of the base plate 1 in Rollenhaltem 7b, 7b 'stored are.
  • the roll holder 7b is fixedly connected to the base plate 1 by a screw 7c, while the roll holder 7b 'by a screw 7c' relative to the base plate 1 in the longitudinal direction the metal band 7 is adjustable so that the belt 7 taut around the two rollers or rolling bearings 7a and 7a 'can be stretched.
  • a metal strip 7 may also be a timing belt or the like can be provided.
  • the jaw 5c 'of the piston carriage 5' not shown in FIG Section shown. It is at the in Fig. 2 upper strand of the two rollers 7a, 7a 'out Bandes 7 attached while the jaw 5 c is attached to the lower run of the belt 7.
  • the clamping jaw 5c ' is provided with a blind bore 5d into which a drive dome 13 (FIG. 8) is inserted.
  • a drive means engages the jaw 5c 'in the direction of the belt 7 back and forth reciprocated.
  • the two piston slides 5 and 5 ' are reciprocated in opposite directions through the metal strip 7, whereby the one group of three pistons performs, for example, a pumping movement, while the other group of three pistons performs a suction movement.
  • the jaw 5c ' engages in a slot 8a of a connecting rod 8, which on the back the base plate 1 is guided in a recess and with the opposite end with a slider 8b is fixed, which is displaceably guided on a guide rod 8c, which is fixedly arranged in a recess of the base plate 1.
  • a Slider 8d With the slider 8b is a Slider 8d firmly connected, which at the two ends a bifurcated section with a Inclined surface 8e, which cooperates with a spring-loaded catch 10 or 10a, that during the sliding movement of the slider 8d in Fig. 3 to the right, the latch 10a pushed back and the leg 9a of the reverser bracket 9 is released, the by a Spring 9c 'is biased in the direction to the right.
  • control bar 9 moves to the right under entrainment the control bar 6f, which engages with the pin 9e of the reversing bracket 9.
  • the rotary valve 6c is rotated by relaxing the spring 9c 'in a position in which is switched from suction to conveying or vice versa.
  • the left leg 9b of the reversing bow 9 in FIGS. 2 and 3 acts with a limit switch 16 preferably in the form of an inductive pickup together, the two positions 16a and 16b of the leg 9b notes.
  • Via electrical lines 16c, 16c ' is a corresponding Signal to a drive motor 13 f (Fig. 8) forwarded so that this direction of rotation reverses to drive movement over the drive mandrel 13 engaging the jaw 5c ' of the piston slide 5 'in the figures to the left while at the same time the metal strip 7 of the piston slide 5 is moved to the right to perform a Pumphub.
  • the jaw 5 c 'in Fig. 2 and 3 is first moved to the left without the Connecting rod 8 is taken, because the jaw 5 c 'in the slot 8 a of Connecting rod 8 moves.
  • the connecting rod 8 in Fig. 2 and 3 moved to the left becomes.
  • Fig. 5 and 5a show schematically with the reference numerals used in Figs. 2 and 3 the Reversing device with the control device. Due to the reproduced embodiment results a switching time of 2 ms on the rotary valve 6c, at the same time the direction of rotation of Drive motor 13f is switched over the inductive pickup 16.
  • the inclined surfaces 8e formed directly on the connecting rod 8. In the slot 8a and the drive dome 13 can intervene to the Um Kunststoff ceremonies directly trigger.
  • Fig. 6 shows schematically the suction and pressure stroke of the connected to the piston carriage Piston of two syringes 3 and 3 'in conjunction with the control device 6 and the rotary valve 6c.
  • a shut-off vent rotary valve is shown in Fig. 6, whose Function will be explained in more detail with reference to FIG. 7.
  • Fig. 6 the vent rotary valve 11 is shown in its closed position.
  • Fig. 4 shows, the venting rotary valve 11 in the same manner as the control rotary valve 6c integrated into the control device 6. He juts over one end of the controller 6 before and is connected to a lever 11 a, so that it can be converted by hand.
  • a bleed syringe 12 to a connecting line 11b of the control device 6 connected, in which the venting rotary valve 11 is arranged.
  • This connection cable 11b is connected to the leads 6b leading to the syringe barrels 3c, in which schematic representation of FIGS. 6 and 7 only one of the leading to the lines 6b Connecting lines 11b is shown.
  • the individual are successively Piston of the syringe 3 in the vertical position of the metering pump of FIG. 1 at the top of the Pulled out syringe barrel, as shown in FIG. 7 shows schematically.
  • the venting syringe 12 is connected by switching the venting rotary valve 11, while the rotary valve 6c connects the outlet of the syringe 3 with the delivery side.
  • the rotary valve 6c connects the outlet of the syringe 3 with the delivery side.
  • medium is pressed into the syringe 3 through the venting syringe, with filled syringe 3 at its upper open end by the surface tension of the medium forms a dome M.
  • the described metering pump operates by the drive motor 13f described below pulsation-free and continuous and can be used for a wide range of media up to 10 bar be used, the respective medium is transported gently.
  • Flow rates are promoted, for example, within an hour a stroke of only about 2/10 mm can be performed.
  • Fig. 8 shows a play-free Driving the engaging in the dargestellen embodiment in the jaw 5c ' Drive dome 13.
  • the drive motor generates a drive movement corresponding to a harmonic sinusoid. This contributes significantly to the generation of a pulsation-free promotion.
  • play-free and rigid drive train with a play-free and torsionally stiff coupling 13e, one backlash-free and rigid bearing 13d, a gradient-stable and kink-resistant drive spindle 13c, a play-free spindle nut 13a and a play-free spindle nut guide 13b (Fig. 8).
  • the achievable flow of the metering pump results from the piston area of the respective Spraying 3 and the conveying speed of the piston, with delivery volumes in the range from 80 n1 / h to 101 / h are achievable.
  • the described metering pump with three syringes per delivery or suction stroke can take up to three Pump or mix different fluids in a definable ratio. Even if the Metering pump is designed for small flow rates, with a larger flow rate through Increasing the conveying speed of the piston rinsing by means of another medium be performed.
  • Fig. 8 shows schematically the electrical or electronic control of the metering pump described with a motor electronics 14, a power stage 14a, a controller 14b and a Control unit 14 c, which receives the signals from the non-contact end position sensor 16 receives and for switching the direction of rotation to the motor 13f knower concerns.
  • a Operating mode selector reproduced that a control or setpoint via a Potentiometer P, an analog signal A or via an interface RS allows, through the one Control via a PC or a corresponding software is possible.
  • By software is a free parameterization of the flow and the flow rate possible.
  • the drive unit shown schematically in FIG. 8 can be in a separate, block-shaped Be housed component from which only the drive pin 13 protrudes, with the Dosing pump is coupled.
  • Dosing pump clamping jig or the like connecting elements can be provided preferably in conjunction with dowel pins between pump and drive unit, so that the Drive unit occupies a predetermined position relative to the metering pump.
  • the dosing pump itself is constructed so that it can be sterilized in a few simple steps Cleaning can be disassembled.
  • the clamping device 2 and the control device 6 be secured by screws to the base plate 1.
  • the metering pump is expediently mounted on an L-shaped carrier T. mounted, wherein the metering pump is inserted between two support plates Tp. Side to one the support plates are the mode selector switch 15 and a knob 20 for adjustment the piston speed and the like provided.
  • the in the dimensions relatively small Dosing pump can be positioned by means of the carrier T on a laboratory bench or the like become.
  • the drive unit can in this case with the base plate 1 fixed between the carrier plates Tp be mounted while the medium-carrying control device 6, for example by means of Removable screws, so that all fluid-carrying components for cleaning and Sterilization can be quickly removed.
  • the syringes not shown in FIG Be via unillustrated lines and connection plugs with the appropriate Holes in the control device 6 connected. On the front side of the control device 6 holes are provided for the connection lines.
  • three pistons each are connected to a precisely working, play-free linear drive system coupled, with all the pistons synchronized move without a stroke difference between the individual pistons occurs. It can commercially available syringes in the diameter range of about 0.7 to 23 mm are used.
  • all components of the metering pump coming into contact with the medium are off electrically insulating material or electrically insulated, so no electrical Potential of the medium can be derived, for example, if promoted ionized medium becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Reciprocating Pumps (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
EP04023691A 2003-10-06 2004-10-05 Pompe de dosage Withdrawn EP1522727A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346341A DE10346341A1 (de) 2003-10-06 2003-10-06 Dosierspritzenpumpe
DE10346341 2003-10-06

Publications (2)

Publication Number Publication Date
EP1522727A2 true EP1522727A2 (fr) 2005-04-13
EP1522727A3 EP1522727A3 (fr) 2009-04-08

Family

ID=34306286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023691A Withdrawn EP1522727A3 (fr) 2003-10-06 2004-10-05 Pompe de dosage

Country Status (3)

Country Link
US (1) US20050106051A1 (fr)
EP (1) EP1522727A3 (fr)
DE (1) DE10346341A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013163033A1 (fr) * 2012-04-23 2013-10-31 Siemens Healthcare Diagnostics Inc. Appareil de pompe à chambres multiples, systèmes et procédés

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966498A (en) * 1933-05-04 1934-07-17 Gross Louis Fluid measuring and dispensing apparatus
US1996498A (en) * 1934-06-18 1935-04-02 Young Radiator Co Heat transfer device
DE1814237A1 (de) * 1968-12-12 1970-06-25 Lissem Peter Geraet zur chemischen Untersuchung von Fluessigkeiten
US3554673A (en) * 1969-01-31 1971-01-12 Sage Instr Inc Syringe pump
US4065230A (en) * 1975-01-17 1977-12-27 Hart Associates, Inc. Reciprocating infusion pump and directional adapter set for use therewith
US4120202A (en) * 1977-03-15 1978-10-17 Baxter Travenol Laboratories, Inc. Positive displacement pump
US4196730A (en) * 1977-08-01 1980-04-08 Wilson Dennis R Liquid drug dispenser
US4288206A (en) * 1979-08-15 1981-09-08 Tigwell David C Automatic multiple water sampler
US4470431A (en) * 1982-02-23 1984-09-11 American Hospital Supply Corporation Syringe valve and clamping mechanism
US4652260A (en) * 1985-03-11 1987-03-24 Strato Medical Corporation Infusion device
US4804368A (en) * 1986-12-05 1989-02-14 C. R. Bard, Inc. Battery operated miniature syringe infusion pump and improved halfnut therefor
US4976696A (en) * 1987-08-10 1990-12-11 Becton, Dickinson And Company Syringe pump and the like for delivering medication
DE3817411A1 (de) * 1988-05-21 1989-11-30 Fresenius Ag Mehrfachinfusionssystem
US5176502A (en) * 1990-04-25 1993-01-05 Becton, Dickinson And Company Syringe pump and the like for delivering medication
US5492535A (en) * 1994-04-06 1996-02-20 Cordis Corporation Hand-powered pumping apparatus for perfusion and other fluid catheterization procedures
US5814015A (en) * 1995-02-24 1998-09-29 Harvard Clinical Technology, Inc. Infusion pump for at least one syringe
EP1920718A1 (fr) * 1995-04-20 2008-05-14 ACIST Medical Systems, Inc. Injecteur de produit de contraste radiographique
US6220487B1 (en) * 1998-10-16 2001-04-24 Micro Robotics Systems, Inc. Dispensing apparatus
DE19933392A1 (de) * 1999-07-21 2001-02-08 Butsch Mietservice Gmbh Dosiereinrichtung
DE10208776A1 (de) * 2002-02-28 2003-09-04 Muefa Ag Infusionseinheit

Also Published As

Publication number Publication date
US20050106051A1 (en) 2005-05-19
DE10346341A1 (de) 2005-05-12
EP1522727A3 (fr) 2009-04-08

Similar Documents

Publication Publication Date Title
EP1495782B1 (fr) Système de tatouage et de maquillage permanent
DE2435912C2 (de) Folge-Quetschventil
DE68907028T2 (de) Mikroschlaggeraet fuer markierung.
DE1811153A1 (de) Vorrichtung zum Einsetzen von Teilen in vorherbestimmte Positionen
DE2809846A1 (de) Abfuelleinrichtung fuer fluessiges gut
EP1848287A1 (fr) Dispositif de traitement d'un produit d'alimentation
DE3513880A1 (de) Geraet zum auspressen plastischer massen
DE2556282C2 (de) Vorrichtung zum gegensinnigen stufenlosen Verstellen zweier Dosierpumpenkolben
EP0314994B1 (fr) Dispositif de pompage avec double pompe
EP0208827A1 (fr) Pince
DE10259565A1 (de) Pendelhubstangenlager
DE1598332A1 (de) Gasspuergeraet
DE4235860A1 (de) Rohrweiche
EP1522727A2 (fr) Pompe de dosage
EP1739434A2 (fr) Dispositif de dosage à plusieurs canaux
DE10059312A1 (de) Zentriervorrichtung für Fördergut
DE2146934B2 (de) Elektromechanisches Hubgerät
DE1528419C3 (de) Flüssigkeitspumpe
DE10191359B4 (de) Medienpumpe
DE1964263C3 (de) Arretierbares Schrittschaltgetriebe
DE8423316U1 (de) Greifvorrichtung
DE655928C (de) Elektrische Widerstandsstumpfschweissmaschine, insbesondere Abbrennschweissmaschine
DE2407964C3 (de) Vorrichtung zum Einstellen des Kolbenhubes einer Kolbenpumpe
DE202009014160U1 (de) Schlitzdüsenvorrichtung
EP0911615A1 (fr) Appareil de dosage volumétrique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20091009

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566