EP0855219A1 - Plastic syringe with piston-cylinder unit for a pipetting device - Google Patents

Plastic syringe with piston-cylinder unit for a pipetting device Download PDF

Info

Publication number
EP0855219A1
EP0855219A1 EP98100972A EP98100972A EP0855219A1 EP 0855219 A1 EP0855219 A1 EP 0855219A1 EP 98100972 A EP98100972 A EP 98100972A EP 98100972 A EP98100972 A EP 98100972A EP 0855219 A1 EP0855219 A1 EP 0855219A1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
retaining ring
syringe
cylinder liner
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
EP98100972A
Other languages
German (de)
French (fr)
Other versions
EP0855219B1 (en
Inventor
Andreas Lang
Hubert Dr. Kunze
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.)
Brand GmbH and Co KG
Original Assignee
Brand GmbH and Co KG
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 Brand GmbH and Co KG filed Critical Brand GmbH and Co KG
Publication of EP0855219A1 publication Critical patent/EP0855219A1/en
Application granted granted Critical
Publication of EP0855219B1 publication Critical patent/EP0855219B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type

Definitions

  • the invention relates to a syringe made of plastic with a Piston-cylinder unit for a pipetting device.
  • Such syringes are conventionally made by injection molding made of plastic. It is known to be in the wall to form a circumferential bead in the cylinder liner, where the piston stops in its maximum extended position is coming. When assembling the syringe, the plunger pressed from the outside over the bead. With sufficient application of strength it is therefore also possible to remove the piston from the bulge pulling out of the cylinder, which is an unwanted splashing out of liquid can result.
  • the object of the invention is a syringe of the aforementioned Way to create, with the misuse avoided and operational safety is improved.
  • a retaining ring for the piston in the cylinder of the piston-cylinder unit let in.
  • the retaining ring prevents the piston from being completely can be pulled out of the cylinder.
  • the syringe is preferably on another, less critical Broken.
  • the retaining ring can be activated and deactivated. In the ineffective state, it is intended to install the piston in the cylinder and allow removal of the piston from the cylinder.
  • the piston has a piston head and a piston rod.
  • the cylinder has a bottom with one Intake and exhaust opening and a cylinder liner into which the piston head fits under sealing.
  • the cylinder liner is open at its end facing away from the cylinder bottom, so that the piston can be built into it.
  • the retaining ring for the piston lies in front of the installation opening, and it is dimensioned so that not the piston head, but probably the piston rod through the retaining ring fits through.
  • the piston rod preferably has guidance in the retaining ring.
  • the guide acts to tilt the piston when filling and emptying towards the syringe.
  • the syringe is preferably dimensioned such that the piston rod rather tears or tears off the piston head or a connection connector the syringe snaps out of its counterpart when that the piston head overcomes the retaining ring.
  • the retaining ring is open the cylinder liner clipped or into the cylinder liner clipped in.
  • the retaining ring can also be used with the cylinder liner glued or welded or from subsequent deformation the cylinder liner be formed.
  • the syringe according to the invention has a preferred use as Piston-cylinder dosing part for a bottle top dispenser.
  • the syringe is an exchange part made of plastic with a piston-cylinder unit for a pipetting device, in particular a bottle top dispenser.
  • the syringe has a cylinder bottom 20 with a central suction and discharge opening 22 that extends axially downward protruding cylindrical nozzle 24 is surrounded.
  • the stub 24 is a sealing with the valve housing of a pipetting device Luer lock connection.
  • the syringe has a circular cylindrical sleeve 28 for one Piston consisting of a piston head 30 and a piston rod 32 exists.
  • the piston head 30 is axially sealed movable in the cylinder liner 28.
  • the piston rod 32 attaches centrally and axially to the piston head 30 and is at the top out of the cylinder liner 28.
  • the cylinder base 20 can also be conical and the piston head 30 accordingly conical.
  • the end of the cylinder liner facing away from the cylinder base 20 28 is open for the installation of the piston. After installation becomes a retaining ring 34 for the piston in the installation opening the cylinder liner 28 used and permanently with the latter connected.
  • the retaining ring 34 is dimensioned so that the Piston rod 32 fits through.
  • the retaining ring 34 is in the cylinder liner 28 of the piston-cylinder unit clipped in.
  • the cylinder liner 28 has a circumferential annular groove 76 on its inner jacket
  • the Retaining ring 34 has a circumferential annular bead on its outer jacket 78, which fits positively in the annular groove 76.
  • the annular groove 76 has a circular segment-shaped profile and the annular bead 78 a corresponding one spherical circular curvature.
  • the retaining ring 34 is on the cylinder liner 28 of the piston-cylinder unit clipped on.
  • a radial, axially and radially outward protruding hook 80 integrally formed on the outside of a ramp at its end 82 and has an undercut 84 behind it.
  • the retaining ring 34 has barbs evenly distributed over the circumference at the edge 86, which spreads elastically over the ramp 82 allow the hook 80 to be pressed and 84 in its undercut come to mind.
  • the piston has beyond its full Dosing strokes a misuse stroke reserve in the cylinder.
  • the Piston head 30 takes one beyond the full metering stroke Secure stop position on the retaining ring 34.

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The plastics syringe has a plunger which cannot be withdrawn from the cylinder in the cylinder plunger unit. There may a retainer for the piston in the cylinder. This retainer may be switched between active and inactive positions.

Description

Die Erfindung betrifft eine Spritze aus Kunststoff mit einer Kolben-Zylinder-Einheit für ein Pipettiergerät.The invention relates to a syringe made of plastic with a Piston-cylinder unit for a pipetting device.

Derartige Spritzen werden herkömmlicherweise durch Spritzgießen aus Kunststoff hergestellt. Es ist bekannt, dabei in die Wand der Zylinderlaufbuchse einen umlaufenden Wulst einzuformen, an dem der Kolben in seiner maximalen Ausfahrstellung zum Anschlag kommt. Beim Zusammenbauen der Spritze wird der Kolben von außen über den Wulst gedrückt. Mit hinreichender Kraftanwendung ist es daher auch möglich, den Kolben über den Wulst aus dem Zylinder herauszuziehen, was ein ungewolltes Herausspritzen von Flüssigkeit zur Folge haben kann. Such syringes are conventionally made by injection molding made of plastic. It is known to be in the wall to form a circumferential bead in the cylinder liner, where the piston stops in its maximum extended position is coming. When assembling the syringe, the plunger pressed from the outside over the bead. With sufficient application of strength it is therefore also possible to remove the piston from the bulge pulling out of the cylinder, which is an unwanted splashing out of liquid can result.

Im Fall einer solchen Fehlbedienung ist die Spritze zwar zunächst kaputt, doch kann der Benutzer sie reparieren, indem er den Kolben über den Wulst wieder in den Zylinder drückt.In the event of such an incorrect operation, the syringe is first broken, but the user can fix it by he pushes the piston over the bead back into the cylinder.

Aufgabe der Erfindung ist es, eine Spritze der eingangs genannten Art zu schaffen, mit der Fehlbedienungen vermieden und die Betriebssicherheit verbessert wird.The object of the invention is a syringe of the aforementioned Way to create, with the misuse avoided and operational safety is improved.

Diese Aufgabe wird mit einer derartigen Spritze dadurch gelöst, daß sich der Kolben nicht aus dem Zylinder der Kolben-Zylinder-Einheit herausziehen läßt.This problem is solved with such a syringe in that that the piston does not come out of the cylinder of the piston-cylinder unit can be pulled out.

Ein Versuch, bei der erfindungsgemäßen Spritze den Kolben aus dem Zylinder herauszuziehen, möchte daran scheitern, daß die Spritze vorzugsweise an anderer, weniger kritischer Stelle kaputt geht, und zwar vorzugsweise so, daß sie unwiederbringlich funktionsuntüchtig wird, dabei aber dicht bleibt.An attempt at the syringe according to the invention pulling out the cylinder wants to fail because the Syringe preferably in a different, less critical place breaks, preferably so that it is irretrievable becomes inoperative, but remains tight.

Bei einer bevorzugten Ausführungsform ist ein Rückhaltering für den Kolben in den Zylinder der Kolben-Zylinder-Einheit eingelassen. Der Rückhaltering verhindert, daß der Kolben ganz aus dem Zylinder herausgezogen werden kann. Ehe der Benutzer den Kolben über den Rückhaltering aus dem Zylinder herausbekommt, geht die Spritze vorzugsweise an anderer, weniger kritischer Stelle kaputt. In a preferred embodiment is a retaining ring for the piston in the cylinder of the piston-cylinder unit let in. The retaining ring prevents the piston from being completely can be pulled out of the cylinder. Marriage the user gets the piston out of the cylinder via the retaining ring, the syringe is preferably on another, less critical Broken.

Der Rückhaltering kann sich wirksam und unwirksam schalten lassen. Er soll im unwirksamen Zustand den Einbau des Kolbens in den Zylinder und Ausbau des Kolbens aus dem Zylinder ermöglichen.The retaining ring can be activated and deactivated. In the ineffective state, it is intended to install the piston in the cylinder and allow removal of the piston from the cylinder.

Bei einer bevorzugten Ausführungsform hat der Kolben einen Kolbenkopf und eine Kolbenstange. Der Zylinder hat einen Boden mit einer Ansaug- und Ausstoßöffnung und eine Zylinderlaufbuchse, in die der Kolbenkopf unter Abdichtung paßt. Die Zylinderlaufbuchse ist an ihrem dem Zylinderboden abgewandten Ende offen, so daS der Kolben darin eingebaut werden kann. Der Rückhaltering für den Kolben liegt vor der Einbauöffnung, und er ist so dimensioniert, daß nicht der Kolbenkopf, wohl aber die Kolbenstange durch den Rückhaltering hindurchpaßt.In a preferred embodiment, the piston has a piston head and a piston rod. The cylinder has a bottom with one Intake and exhaust opening and a cylinder liner into which the piston head fits under sealing. The cylinder liner is open at its end facing away from the cylinder bottom, so that the piston can be built into it. The retaining ring for the piston lies in front of the installation opening, and it is dimensioned so that not the piston head, but probably the piston rod through the retaining ring fits through.

Vorzugsweise hat die Kolbenstange in dem Rückhaltering Führung. Die Führung wirkt einem Verkanten des Kolbens beim Füllen und Entleeren der Spritze entgegen.The piston rod preferably has guidance in the retaining ring. The guide acts to tilt the piston when filling and emptying towards the syringe.

Die Spritze ist vorzugsweise so dimensioniert, daß eher die Kolbenstange zerreißt oder von dem Kolbenkopf abreißt oder ein Anschlußverbindungsstutzen der Spritze aus seinem Gegenstück reißt, als daß der Kolbenkopf den Rückhaltering überwindet.The syringe is preferably dimensioned such that the piston rod rather tears or tears off the piston head or a connection connector the syringe snaps out of its counterpart when that the piston head overcomes the retaining ring.

Bei einer bevorzugten Ausführungsform ist der Rückhaltering auf die Zylinderlaufbuchse aufgeklipst oder in die Zylinderlaufbuchse eingeklipst. Auch kann der Rückhaltering mit der Zylinderlaufbuchse verklebt oder verschweißt oder durch nachträgliche Verformung aus der Zylinderlaufbuchse gebildet sein.In a preferred embodiment, the retaining ring is open the cylinder liner clipped or into the cylinder liner clipped in. The retaining ring can also be used with the cylinder liner glued or welded or from subsequent deformation the cylinder liner be formed.

Die erfindungsgemäße Spritze hat eine bevorzugte Verwendung als Kolben-Zylinder-Dosierteil für einen Flaschenaufsatzdispenser.The syringe according to the invention has a preferred use as Piston-cylinder dosing part for a bottle top dispenser.

Die Erfindung wird im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1 bis Fig. 3
Seitenansichten einer Spritze mit einer Kolben-Zylinder-Einheit für ein Pipettiergerät, wobei
Fig. 1
den Kolben ganz eingefahren,
Fig. 2
den Kolben dem vollen Dosierhub entsprechend ausgefahren,
Fig. 3
den Kolben in Sicherungs-Anschlagstellung zeigt;
Fig. 4
als vergrößerte Einzelheit von Fig. 2 einen in den Zylinder der Kolben-Zylinder-Einheit eingeklipsten Rückhaltering; und
Fig. 5
ebenso einen auf den Zylinder aufgeklipsten Rückhaltering.
The invention is explained below with reference to an embodiment shown in the drawing. Show it:
1 to 3
Side views of a syringe with a piston-cylinder unit for a pipetting device, wherein
Fig. 1
fully retracted the piston
Fig. 2
extend the piston according to the full dosing stroke,
Fig. 3
shows the piston in the safety stop position;
Fig. 4
as an enlarged detail of Figure 2, a retaining ring clipped into the cylinder of the piston-cylinder unit; and
Fig. 5
also a retaining ring clipped onto the cylinder.

Bei der Spritze handelt es sich um ein Austauschteil aus Kunststoff mit einer Kolben-Zylinder-Einheit für ein Pipettiergerät, insbesondere einen Flaschenaufsatzdispenser. The syringe is an exchange part made of plastic with a piston-cylinder unit for a pipetting device, in particular a bottle top dispenser.

Die Spritze hat einen Zylinderboden 20 mit einer mittigen Ansaug- und Ausstoßöffnung 22, die von einem axial nach unten abstehenden zylindrischen Stutzen 24 umgeben ist. Der Stutzen 24 geht mit dem Ventilgehäuse eines Pipettiergeräts eine abdichtende Luerlock-Verbindung ein.The syringe has a cylinder bottom 20 with a central suction and discharge opening 22 that extends axially downward protruding cylindrical nozzle 24 is surrounded. The stub 24 is a sealing with the valve housing of a pipetting device Luer lock connection.

Die Spritze hat eine kreiszylindrische Laufbuchse 28 für einen Kolben, der aus einem Kolbenkopf 30 und einer Kolbenstange 32 besteht. Der Kolbenkopf 30 sitzt unter Abdichtung axial beweglich in der Zylinderlaufbuchse 28. Die Kolbenstange 32 setzt mittig und axial an dem Kolbenkopf 30 an und steht oben aus der Zylinderlaufbuchse 28 heraus.The syringe has a circular cylindrical sleeve 28 for one Piston consisting of a piston head 30 and a piston rod 32 exists. The piston head 30 is axially sealed movable in the cylinder liner 28. The piston rod 32 attaches centrally and axially to the piston head 30 and is at the top out of the cylinder liner 28.

Statt wie dargestellt eben, kann der Zylinderboden 20 auch konisch und der Kolbenkopf 30 entsprechend konisch sein.Instead of just as shown, the cylinder base 20 can also be conical and the piston head 30 accordingly conical.

Das dem Zylinderboden 20 abgewandte Ende der Zylinderlaufbuchse 28 ist für den Einbau des Kolbens offen. Nach erfolgtem Einbau wird ein Rückhaltering 34 für den Kolben in die Einbauöffnung der Zylinderlaufbuchse 28 eingesetzt und mit letzterer dauerhaft verbunden. Der Rückhaltering 34 ist so dimensioniert, daß die Kolbenstange 32 hindurchpaßt. The end of the cylinder liner facing away from the cylinder base 20 28 is open for the installation of the piston. After installation becomes a retaining ring 34 for the piston in the installation opening the cylinder liner 28 used and permanently with the latter connected. The retaining ring 34 is dimensioned so that the Piston rod 32 fits through.

Gemäß Fig. 4 ist der Rückhaltering 34 in die Zylinderlaufbuchse 28 der Kolben-Zylinder-Einheit eingeklipst. Die Zylinderlaufbuchse 28 hat an ihrem Innenmantel eine umlaufende Ringnut 76, und der Rückhaltering 34 an seinem Außenmantel einen umlaufenden Ringwulst 78, der formschlüssig in die Ringnut 76 paßt. Die Ringnut 76 hat ein kreissegmentförmiges Profil und der Ringwulst 78 eine entsprechende ballige Kreiswölbung.4, the retaining ring 34 is in the cylinder liner 28 of the piston-cylinder unit clipped in. The cylinder liner 28 has a circumferential annular groove 76 on its inner jacket, and the Retaining ring 34 has a circumferential annular bead on its outer jacket 78, which fits positively in the annular groove 76. The annular groove 76 has a circular segment-shaped profile and the annular bead 78 a corresponding one spherical circular curvature.

Gemäß Fig. 5 ist der Rückhaltering 34 auf die Zylinderlaufbuchse 28 der Kolben-Zylinder-Einheit aufgeklipst. An die Zylinderlaufbuchse 28 ist ein radial umlaufender, axial und radial nach außen abstehender Haken 80 angeformt, der an seinem Ende außen eine Rampe 82 und dahinter eine Hinterschneidung 84 aufweist. Der Rückhaltering 34 hat am Rand gleichmäßig über den Umfang verteilte Widerhaken 86, die sich unter elastischer Spreizung über die Rampe 82 des Hakens 80 drücken lassen und in dessen Hinterschneidung 84 einfallen.5, the retaining ring 34 is on the cylinder liner 28 of the piston-cylinder unit clipped on. To the cylinder liner 28 is a radial, axially and radially outward protruding hook 80 integrally formed on the outside of a ramp at its end 82 and has an undercut 84 behind it. The retaining ring 34 has barbs evenly distributed over the circumference at the edge 86, which spreads elastically over the ramp 82 allow the hook 80 to be pressed and 84 in its undercut come to mind.

Wie in Fig. 2 gezeigt, hat der Kolben jenseits seines vollen Dosierhubs eine Fehlbedienungs-Hubreserve in dem Zylinder. Der Kolbenkopf 30 nimmt jenseits des vollen Dosierhubs eine Sicherungs-Anschlagstellung an dem Rückhaltering 34 ein. As shown in Fig. 2, the piston has beyond its full Dosing strokes a misuse stroke reserve in the cylinder. Of the Piston head 30 takes one beyond the full metering stroke Secure stop position on the retaining ring 34.

Liste der BezugszeichenList of reference numbers

2020th
ZylinderbodenCylinder bottom
2222
Ansaug- und AusstoßöffnungIntake and discharge opening
2424th
StutzenSupport
2828
ZylinderlaufbuchseCylinder liner
3030th
KolbenkopfPiston head
3232
KolbenstangePiston rod
3434
RückhalteringRetaining ring
7676
RingnutRing groove
7878
RingwulstRing bead
8080
Hakenhook
8282
Ramperamp
8484
HinterschneidungUndercut
8686
WiderhakenBarbs

Claims (8)

Spritze aus Kunststoff mit einer Kolben-Zylinder-Einheit für ein Pipettiergerät, dadurch gekennzeichnet, daß der Kolben aus dem Zylinder nicht herausziehbar ist.Plastic syringe with a piston-cylinder unit for a pipetting device, characterized in that the Piston cannot be pulled out of the cylinder. Spritze nach Anspruch 1, dadurch gekennzeichnet, daß ein Rückhaltering (34) für den Kolben in den Zylinder eingelassen ist. Syringe according to claim 1, characterized in that a Retaining ring (34) for the piston embedded in the cylinder is. Spritze nach Anspruch 2, dadurch gekennzeichnet, daß der Rückhaltering (34) wirksam und unwirksam schaltbar ist.Syringe according to claim 2, characterized in that the retaining ring (34) can be switched effectively and ineffectively. Spritze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kolben einen Kolbenkopf (30) und eine Kolbenstange (32) hat, daß der Zylinder einen Boden (20) mit einer Ansaug- und Ausstoßöffnung (22) und eine Zylinderlaufbuchse (28) hat, in die der Kolbenkopf (30) unter Abdichtung paßt, daß die Zylinderlaufbuchse (28) an ihrem dem Zylinderboden (20) abgewandten Ende eine Einbauöffnung für den Kolben hat, daß der Rückhaltering (34) vor der Einbauöffnung liegt, und daß die Kolbenstange (32) durch den Rückhaltering (34) hindurchpaßt und vorzugsweise darin Führung hat.Syringe according to one of claims 1 to 3, characterized in that that the piston has a piston head (30) and a piston rod (32) has that the cylinder has a bottom (20) with an intake and Has ejection opening (22) and a cylinder liner (28), into which the piston head (30) fits under sealing that the cylinder liner (28) on its facing away from the cylinder base (20) End has an installation opening for the piston that the Retaining ring (34) is in front of the installation opening, and that the Piston rod (32) fits through the retaining ring (34) and preferably has leadership in it. Spritze nach Anspruch 4, dadurch gekennzeichnet, daß eher die Kolbenstange (32) zerreißt oder von dem Kolbenkopf (30) abreißt oder ein Anschlußverbindungsstutzen (24) der Spritze aus seinem Gegenstück reißt, als daß der Kolbenkopf (30) den Rückhaltering (34) überwindet.Syringe according to claim 4, characterized in that rather the Piston rod (32) tears or from the piston head (30) or a connector (24) of the syringe from its Counterpart tears as that the piston head (30) the retaining ring (34) overcomes. Spritze nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Rückhaltering (34) auf die Zylinderlaufbuchse (28) aufgeklipst oder in die Zylinderlaufbuchse (28) eingeklipst ist. Syringe according to one of claims 1 to 5, characterized in that the retaining ring (34) on the cylinder liner (28) clipped on or in the cylinder liner (28) is clipped in. Spritze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Rückhaltering (34) mit der Zylinderlaufbuchse (28) verklebt oder verschweißt oder durch nachträgliche Verformung mung aus der Zylinderlaufbuchse (28) gebildet ist.Syringe according to one of claims 1 to 6, characterized in that that the retaining ring (34) with the cylinder liner (28) glued or welded or by subsequent deformation tion from the cylinder liner (28) is formed. Spritze nach einem der Ansprüche 1 bis 7 als Kolben-Zylinder-Dosierteil für einen Flaschenaufsatzdispenser.Syringe according to one of claims 1 to 7 as a piston-cylinder metering part for a bottle top dispenser.
EP98100972A 1997-01-27 1998-01-21 Plastic syringe with piston-cylinder unit for a pipetting device Expired - Lifetime EP0855219B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702778 1997-01-27
DE19702778A DE19702778A1 (en) 1997-01-27 1997-01-27 Plastic syringe with a piston-cylinder unit for a pipetting device

Publications (2)

Publication Number Publication Date
EP0855219A1 true EP0855219A1 (en) 1998-07-29
EP0855219B1 EP0855219B1 (en) 2004-08-25

Family

ID=7818425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100972A Expired - Lifetime EP0855219B1 (en) 1997-01-27 1998-01-21 Plastic syringe with piston-cylinder unit for a pipetting device

Country Status (3)

Country Link
US (1) US6085944A (en)
EP (1) EP0855219B1 (en)
DE (2) DE19702778A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6085944A (en) * 1997-01-27 2000-07-11 Brand Gmbh & Co. Syringe metering unit for bottle top dispenser

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6803022B2 (en) * 1999-12-06 2004-10-12 Becton, Dickinson And Company Device and method for separating components of a fluid sample
DE20019821U1 (en) 1999-12-09 2001-06-07 BRAND GMBH + CO KG, 97877 Wertheim Dosing device for liquids
DE102012207898B4 (en) 2011-05-11 2016-04-28 Umwelt-Geräte-Technik GmbH Piston-type pipette and device for determining the particle size distribution in soil samples

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117728A (en) * 1977-12-22 1978-10-03 Miles Laboratories, Inc. Pipette
US4750373A (en) * 1987-01-22 1988-06-14 Shapiro Justin J Adjustable volume, pressure-generating pipette sampler
CH682722A5 (en) * 1991-05-31 1993-11-15 Andyval Inc Droplet counter esp. for liq. medicines - has lower end of plunger equipped with discs which can be cut=off to increase number of droplets dispensed, suitbale for use by the elderly or infirm
WO1994026332A1 (en) * 1993-05-17 1994-11-24 Reynolds David L Improvements in pharmaceutical containers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633520B1 (en) * 1988-06-30 1992-04-30 Brunel Marc SYRINGE OF THE TYPE COMPRISING A SINGLE USE INJECTION NEEDLE, PARTICULARLY FOR THE DENTAL FIELD
DE19702778A1 (en) * 1997-01-27 1998-07-30 Brand Gmbh & Co Plastic syringe with a piston-cylinder unit for a pipetting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117728A (en) * 1977-12-22 1978-10-03 Miles Laboratories, Inc. Pipette
US4750373A (en) * 1987-01-22 1988-06-14 Shapiro Justin J Adjustable volume, pressure-generating pipette sampler
CH682722A5 (en) * 1991-05-31 1993-11-15 Andyval Inc Droplet counter esp. for liq. medicines - has lower end of plunger equipped with discs which can be cut=off to increase number of droplets dispensed, suitbale for use by the elderly or infirm
WO1994026332A1 (en) * 1993-05-17 1994-11-24 Reynolds David L Improvements in pharmaceutical containers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6085944A (en) * 1997-01-27 2000-07-11 Brand Gmbh & Co. Syringe metering unit for bottle top dispenser

Also Published As

Publication number Publication date
EP0855219B1 (en) 2004-08-25
US6085944A (en) 2000-07-11
DE19702778A1 (en) 1998-07-30
DE59811849D1 (en) 2004-09-30

Similar Documents

Publication Publication Date Title
DE3686636T2 (en) POWERED SYRINGE WITH AN ADAPTER FOR VOLUME REDUCTION.
EP0412283B1 (en) Syringe cylinder for medical use
DE69024815T2 (en) SYRINGE
DE69629850T2 (en) Pump with breakable membrane seal
EP0528120B1 (en) Syringe for medical purposes
DE69110344T2 (en) Spraying and dosing device.
DE3114873C2 (en)
EP0855580B1 (en) Jar mounted dispenser
EP3271042B1 (en) Filter apparatus
DE4412041A1 (en) Discharge device for flowable media, in particular for discharge in just one stroke
EP0199143A1 (en) Push plunger pump for dispensing fluid media
DE2264139A1 (en) HYDRAULIC SHOCK ABSORBER
WO2003026803A1 (en) Dosing device with a pump device
DE10300494A1 (en) Pump for dispensing flowable material
DE3823266A1 (en) SPRAY CAMP
DE102007021290A1 (en) Piston pump with graduated cylinder
DE2361987A1 (en) LIQUID DISPENSER
DE69504649T2 (en) INJECTION SYRINGE
EP0901836B1 (en) Fluid dispenser
EP3359298B1 (en) Dispenser of liquid or pasty products
WO2000040284A1 (en) Injecting syringe
EP0641228B1 (en) Single use injection device
EP0443192B1 (en) Discharge head for fluids
EP0855219B1 (en) Plastic syringe with piston-cylinder unit for a pipetting device
DE102010063587B4 (en) Discharge device for a liquid

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: A1

Designated state(s): CH DE FI FR GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19980703

AKX Designation fees paid

Free format text: CH DE FI FR GB IT LI

RBV Designated contracting states (corrected)

Designated state(s): CH DE FI FR GB IT LI

17Q First examination report despatched

Effective date: 20021025

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FI FR GB IT LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59811849

Country of ref document: DE

Date of ref document: 20040930

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE BREITER + WIEDMER AG

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20050526

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070122

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: BRAND GMBH + CO

Free format text: BRAND GMBH + CO#OTTO-SCHOTT-STRASSE 25#D-97877 WERTHEIM (DE) -TRANSFER TO- BRAND GMBH + CO#OTTO-SCHOTT-STRASSE 25#D-97877 WERTHEIM (DE)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070625

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080121

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59811849

Country of ref document: DE

Representative=s name: VON ROHR PATENTANWAELTE PARTNERSCHAFT, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 59811849

Country of ref document: DE

Representative=s name: VON ROHR PATENTANWAELTE PARTNERSCHAFT MBB, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20140113

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140123

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150121

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150202

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170119

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170119

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59811849

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20180120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20180120