EP0180591A1 - Dispensiereinrichtung für flüssigkeiten. - Google Patents
Dispensiereinrichtung für flüssigkeiten.Info
- Publication number
- EP0180591A1 EP0180591A1 EP85901444A EP85901444A EP0180591A1 EP 0180591 A1 EP0180591 A1 EP 0180591A1 EP 85901444 A EP85901444 A EP 85901444A EP 85901444 A EP85901444 A EP 85901444A EP 0180591 A1 EP0180591 A1 EP 0180591A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispensing device
- needles
- areas
- filling
- block
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 13
- 238000004448 titration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000000427 antigen Substances 0.000 description 3
- 102000036639 antigens Human genes 0.000 description 3
- 108091007433 antigens Proteins 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002965 ELISA Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- B01L3/0203—Burettes, i.e. for withdrawing and redistributing liquids through different conduits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86381—Head-establishing standpipe or expansion chamber [e.g., surge tanks]
Definitions
- the invention relates to a dispensing device for liquids, in particular for loading cavities in titer plates, with a distributor pipe connected to a pump via a line, from which at least two, preferably eight, filling pipes lead radially away.
- the Elisa method enzyme linked immunosorbent assay
- the various methods of this system are used to measure antigens and / or antibodies.
- antibodies are absorbed on the titer plate in a first process step, then the titer plate is washed, then in a further process step the addition of a residual solution containing the antigen is carried out, followed by washing again, followed by enzyme-labeled specific antibodies the titer plate is given, then the titer plate is washed again, after which the enzyme substrate is admixed.
- the actual measurement is carried out in a photometer.
- microtiter plates currently in use have 96 cavities, each of which corresponds practically to a cuvette.
- a quantity of 0.4 ml of the conventional piston stroke pumps is dispensed per pump cycle, so that 50 ⁇ l of test liquid are dispensed per cavity of the microtiter plate in a dispensing device with eight filling tubes. It has proven to be advantageous for the dispensing accuracy if the line between the distributor pipe and the pump is made of elastic material in order to be able to somewhat compensate for the relatively hard pump shocks. It should also be pointed out that, in the dispensing device according to the invention, the liquid in the filling pipes is withdrawn by approximately 1 to 2 mm at the end of each pumping process, which reliably prevents dripping.
- An embodiment of the invention provides that the diversion areas of the filling pipes are horizontally straight.
- a particularly advantageous exemplary embodiment of the invention is characterized in that at the upper end of the section of the filling pipes leading upwards there is a compensating pipe aligned parallel to the distributor pipe, to which the diversion areas of the filling pipes connect, advantageously two between the distributor pipe and the compensating pipe Filling tubes are and eight filling tubes lead away from the compensating tube.
- the drainage areas of the filling pipes are advantageously formed by metallic needles.
- a further exemplary embodiment provides that the distributor pipe, the areas leading upwards and the discharge areas of the filling pipes and possibly the compensating pipe are incorporated in a common block in which the needles are held.
- the block can be
- the block is advantageously made in two parts, the parting plane between the block parts being cut immediately. through the pipes.
- the block has a lower holding strip for the needles.
- FIG. 1 schematically shows a cross section through the dispensing device according to the invention
- FIG. 2 shows a section through a block according to the invention with distributor pipe, compensating pipe and filling pipe
- FIG. 3 shows a section along line III-III of FIG Fig. 4 shows a section along the line IV-IV of Fig. 2nd
- the remaining parts of the dispensing device, such as the pump, control device and liquid container, are not particularly shown in the figures of the drawing, they are manufactured according to the conventional state of the art.
- a line 2 leads from the pump 1 to the connection 3 in the block 4 according to the invention and in this the liquid is first led into a horizontally oriented distributor pipe 5.
- two filling tubes 6 lead upward into a compensating tube 7 from the distributor tube within the block 4.
- the diversion areas 8 are incorporated in block 4.
- the drainage areas 9 of the filling tubes 6 are formed in the exemplary embodiment by separate needles.
- the block 4 is formed in two parts, the distributor pipe 5, the compensating pipe 7 and the two leading upwards in a part 4 '
- Sections of the filling pipes 6 are formed, while in the ' second part 4 ''there are the horizontal diversion areas 8 of the filling pipes 6.
- the needles which form the drainage areas 9 are also stored in the second part 4''of the block 4, which is at the top and bottom a holding strip 10 is provided for the needles.
- the needles in the exemplary embodiment shown have a diameter of 0.6 mm and a length of 21 mm.
- the speed of the liquid in the needles is approximately 0.7 m / sec.
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Nozzles (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1196/84 | 1984-04-10 | ||
AT119684A AT379455B (de) | 1984-04-10 | 1984-04-10 | Dispensiereinrichtung fuer fluessigkeiten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0180591A1 true EP0180591A1 (de) | 1986-05-14 |
EP0180591B1 EP0180591B1 (de) | 1989-01-25 |
Family
ID=3508680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19850901444 Expired EP0180591B1 (de) | 1984-04-10 | 1985-04-04 | Dispensiereinrichtung für flüssigkeiten |
Country Status (6)
Country | Link |
---|---|
US (1) | US4779769A (de) |
EP (1) | EP0180591B1 (de) |
JP (1) | JPS61501868A (de) |
AT (2) | AT379455B (de) |
DE (1) | DE3567821D1 (de) |
WO (1) | WO1985004599A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1036594A2 (de) * | 1999-03-08 | 2000-09-20 | JENOPTIK Aktiengesellschaft | Mehrkanal-Tropfengenerator |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3357606A (en) * | 1965-06-18 | 1967-12-12 | James F Kahlenberg | Fluid flow adjustment device for manifolded dispensing nozzles |
FR1556997A (de) * | 1966-09-01 | 1969-01-06 | ||
US3724984A (en) * | 1970-09-22 | 1973-04-03 | Eskimo Pie Corp | Extruder nozzle distribution plate with a plurality of valve controlled grooves |
SE355076B (de) * | 1971-03-26 | 1973-04-02 | Aga Ab | |
US3818931A (en) * | 1972-06-08 | 1974-06-25 | J Carpenter | Water hammer arrester |
US4488665A (en) * | 1982-05-24 | 1984-12-18 | Spraymation, Inc. | Multiple-outlet adhesive applicator apparatus and method |
-
1984
- 1984-04-10 AT AT119684A patent/AT379455B/de not_active IP Right Cessation
-
1985
- 1985-04-04 WO PCT/EP1985/000154 patent/WO1985004599A1/de active IP Right Grant
- 1985-04-04 AT AT85901444T patent/ATE40309T1/de not_active IP Right Cessation
- 1985-04-04 DE DE8585901444T patent/DE3567821D1/de not_active Expired
- 1985-04-04 EP EP19850901444 patent/EP0180591B1/de not_active Expired
- 1985-04-04 JP JP60501680A patent/JPS61501868A/ja active Pending
-
1987
- 1987-10-26 US US07/113,345 patent/US4779769A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8504599A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1036594A2 (de) * | 1999-03-08 | 2000-09-20 | JENOPTIK Aktiengesellschaft | Mehrkanal-Tropfengenerator |
EP1036594A3 (de) * | 1999-03-08 | 2001-01-24 | CyBio Instruments GmbH | Mehrkanal-Tropfengenerator |
Also Published As
Publication number | Publication date |
---|---|
AT379455B (de) | 1986-01-10 |
EP0180591B1 (de) | 1989-01-25 |
US4779769A (en) | 1988-10-25 |
WO1985004599A1 (en) | 1985-10-24 |
JPS61501868A (ja) | 1986-08-28 |
ATE40309T1 (de) | 1989-02-15 |
DE3567821D1 (en) | 1989-03-02 |
ATA119684A (de) | 1985-05-15 |
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Legal Events
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