DE953196C - pipette - Google Patents

pipette

Info

Publication number
DE953196C
DE953196C DER6361A DER0006361A DE953196C DE 953196 C DE953196 C DE 953196C DE R6361 A DER6361 A DE R6361A DE R0006361 A DER0006361 A DE R0006361A DE 953196 C DE953196 C DE 953196C
Authority
DE
Germany
Prior art keywords
pipette
syringe
pipettes
liquid
capillary
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.)
Expired
Application number
DER6361A
Other languages
German (de)
Inventor
Wilhelm Karl Rose
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.)
WILHELM KARL ROSE
Original Assignee
WILHELM KARL ROSE
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 WILHELM KARL ROSE filed Critical WILHELM KARL ROSE
Priority to DER6361A priority Critical patent/DE953196C/en
Application granted granted Critical
Publication of DE953196C publication Critical patent/DE953196C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02Burettes; Pipettes
    • B01L3/021Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02Burettes; Pipettes
    • B01L3/0275Interchangeable or disposable dispensing tips

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Description

Die Erfindung betrifft eine Pipette mit Füllvorrichtung. The invention relates to a pipette with a filling device.

Man hat graduierte Pipetten mit Füllvorrich tungen versehen, z. B. mit einem Gummiball oder mit einer aufgeschmolzenen Pumpe. Diese Vorrichtungen sind aber bei Reihenuntersuchungen, z. B. mit zwölf Blutsenkungspipetten, unzweckmäßig. Einmal sind dazu zwölf Füllvorrichtungen nötig. Vor allem aber stören die Pumpen oder B,ålle an den Pipetten beim weiteren Arbeiten sehr. Graduated pipettes have been provided with filling devices, e.g. B. with a rubber ball or with a melted pump. These devices are but with series examinations, z. B. with twelve sedimentation pipettes, inexpedient. Once, twelve filling devices are required. Most of all, the pumps are a nuisance or B, ålle on the pipettes as you continue to work.

Man hat daher die Flüssigkeiten, wie Blut, in Mikropipetten oder Kapillarpipetten mittels eines Schlauches durch Ansaugen mit dem Mund gefüllt. Dieses Ansaugen ist nicht nur umständlich und unhygienisch, sondern auch unzulänglich, wenn es sich um Kapillarpipetten handelt, die nur durch Anschluß an eine Vakuumleitung gefüllt werden konnten. Dabei war es aber schwierig, die genaue Flüssigkeitsmenge in die Pipette zu bringen.You therefore have the liquids, such as blood, in micropipettes or capillary pipettes filled by suction with the mouth by means of a hose. This suction is not only awkward and unsanitary but also inadequate when it turns out to be are capillary pipettes that are only filled by connecting them to a vacuum line could become. But it was difficult to get the exact amount of liquid into the Bring pipette.

Die vorliegende Erfindung betrifft eine Pipette mit lösbar daran befestigter Füllvorrichtung. The present invention relates to a pipette with detachable thereon attached filling device.

Vorzugsweise ist die Pipette lösbar mit einer Kolbenspritze verbunden. Nach einer besonderen Ausführungsform der Erfindung ist die Pipette mit der Kolbenspritze durch einen Normalschliff verbunden. Zweckmäßig ist die Pipette an ihrem hinteren Ende mit einem hohlkegeligen Innenschliff versehen, in den der Ansteckkonus einer medizimschen oder anderen Spritze luftdicht eingeführt werden kann.The pipette is preferably detachably connected to a plunger syringe. According to a particular embodiment of the invention, the pipette is with the plunger syringe connected by a normal joint. The pipette is useful at its rear The end is provided with a hollow conical inner grind into which the plug-on cone has a medical or other syringe can be inserted airtight.

In der Zeichnung ist eine Ausführungsform der Erfindung beispielsweise veranschaulicht. In the drawing, an embodiment of the invention is for example illustrated.

Die Blutsenkungspipette I, die in bekannter Weise eine von der Spitze 2 bis in den hinteren Teil 3 verlaufende Kapillare 4 und eine Gradeinteilung 5 besitzt, ist an ihrem hinteren Ende in der Kapillaren mit einem hohlkegeligen Schliff 6 versehen. In diesen Schliff 6 paßt der Aneteckkonus 7 der Glasspritze 8, die in bekannter Weise mit einem Glasstempel 9 ausgestattet ist. The sedimentation pipette I, in a known manner, one from the top 2 to the rear part 3 running capillary 4 and a graduation 5 has, is provided with a hollow conical ground joint 6 at its rear end in the capillary. In this cut 6 fits the Aneteckkonus 7 of the glass syringe 8, which is known in Way is equipped with a glass stamp 9.

Zum Ansaugen des erforderlichen Flüssigkeitsvolumens, z. B. von Blut, wird das untere Pipettenende 2 in idie Flüssigkeit getaucht und durch Ziehen des Kolbens g die gewünschte Flüssigkeitsmenge eingezogen. Dabei kann der Flüssigkeitsstand mittels des Kolbens g genau auf die gewünschte Marke der Gradeinteilung 5 eingestellt werden. Ist die Pipette I gefüllt, so wird die Spritze 8 mit ihrem Anschlußkegel 7 aus dem Schliff 6 der Pipette I herausgezogen und die Pipette, z. B. eine Senkungspipette, kann nun ohne störende Anhängsel für die weitere Bearbeitung verwendet werden. To suck in the required volume of liquid, e.g. B. of blood, the lower end of the pipette 2 is immersed in the liquid and by pulling the Piston g drawn in the desired amount of liquid. The fluid level can be set exactly to the desired mark of the graduation 5 by means of the piston g will. If the pipette I is filled, the syringe 8 with its connecting cone is 7 pulled out of the joint 6 of the pipette I and the pipette, for. B. a dropping pipette, can now be used for further processing without annoying appendages.

Die Erfindung hat den Vorteil, daß ein einwandfreies und leichtes Füllen und ein reibungsloses Arbeiten möglich ist und daß ,die bekannten medizinischen Spritzen, z. B. Rekordspritzen oder Ganzglasspritzen, die in jedem Krankenhaus vorhanden sind, mit ihrem Normalkonus, auf den gewöhnlich die Hohlnadel aufgesteckt wird, verwendet werden können und in aufgesetztem Zustand als Pumpe wirken. The invention has the advantage that a flawless and easy Filling and smooth work is possible and that, the well-known medical Syringes, e.g. B. Record syringes or all-glass syringes, which are available in every hospital are, with their normal cone, on which the hollow needle is usually attached, can be used and act as a pump when attached.

Nach der Erfindung kann man auch ungraduierte Pipetten verwenden, da die Gradeinteilung der Spritze ebenfalls den Flüssigkeitsinhalt anzeigt. According to the invention, you can also use ungraded pipettes, because the graduation of the syringe also shows the liquid content.

PATENTANSPRÜCEE: I. Pipette mit lösbar daran befestigter Füllvorrichtung. PATENT CLAIMS: I. Pipette with a releasably attached filling device.

Claims (1)

2. Pipette nach Anspruch I, dadurch gekennzeichnet, daß sie mit einer Kolbenspritze lösbar verbunden ist. 2. Pipette according to claim I, characterized in that it is provided with a Piston syringe is releasably connected. 3. Pipette nach Anspruch I oder 2, dadurch gekennzeichnet, daß die Pipette (I) an ihrem hinteren Ende mit einem vorzugsweise hohlkegeligen Innenschiiff (6) ausgestattet ist, in den der Anschlußkonus (7) einer medizinischen oder anderen Spritze (8, 9) luftdicht eingeführt werden kann. 3. Pipette according to claim I or 2, characterized in that the Pipette (I) at its rear end with a preferably hollow-conical inner vessel (6) is equipped in which the connecting cone (7) of a medical or other Syringe (8, 9) can be inserted airtight.
DER6361A 1951-07-19 1951-07-19 pipette Expired DE953196C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER6361A DE953196C (en) 1951-07-19 1951-07-19 pipette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER6361A DE953196C (en) 1951-07-19 1951-07-19 pipette

Publications (1)

Publication Number Publication Date
DE953196C true DE953196C (en) 1956-11-29

Family

ID=7397319

Family Applications (1)

Application Number Title Priority Date Filing Date
DER6361A Expired DE953196C (en) 1951-07-19 1951-07-19 pipette

Country Status (1)

Country Link
DE (1) DE953196C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090449B (en) * 1957-05-03 1960-10-06 Dr Med Heinrich Schnitger Device for quick and precise pipetting of small amounts of liquid
DE2657672A1 (en) * 1976-12-20 1978-06-22 Hettich Andreas Fa Pipette for dispensing sample in equal amts. - using control element fitted to the plunger for movement with or independently of the plunger
US5223225A (en) * 1991-05-17 1993-06-29 Bio 101 Scale-marked pipet tip for precision dispensing of fluids over a large range of volumes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090449B (en) * 1957-05-03 1960-10-06 Dr Med Heinrich Schnitger Device for quick and precise pipetting of small amounts of liquid
DE2657672A1 (en) * 1976-12-20 1978-06-22 Hettich Andreas Fa Pipette for dispensing sample in equal amts. - using control element fitted to the plunger for movement with or independently of the plunger
US5223225A (en) * 1991-05-17 1993-06-29 Bio 101 Scale-marked pipet tip for precision dispensing of fluids over a large range of volumes

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