EP0179886A1 - Support pour eprouvettes avec dispositif d'evacuation - Google Patents

Support pour eprouvettes avec dispositif d'evacuation

Info

Publication number
EP0179886A1
EP0179886A1 EP85902443A EP85902443A EP0179886A1 EP 0179886 A1 EP0179886 A1 EP 0179886A1 EP 85902443 A EP85902443 A EP 85902443A EP 85902443 A EP85902443 A EP 85902443A EP 0179886 A1 EP0179886 A1 EP 0179886A1
Authority
EP
European Patent Office
Prior art keywords
insert
tube stand
stand according
vacuum chamber
tube
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Withdrawn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
EP85902443A
Other languages
German (de)
English (en)
Inventor
Uwe Werner Dr. Ballies
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0179886A1 publication Critical patent/EP0179886A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00—Supporting devices; Holding devices
    • B01L9/06—Test-tube stands; Test-tube holders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/64—Containers with integrated suction means
    • A61M1/66—Pre-evacuated rigid containers, e.g. Redon bottles

Definitions

  • the invention relates to a tube with Stander Eva ⁇ kuier friendship, for example, serving for the blood tests mentioned above _I Q tubes whose bottom opening is closed by a resilient stopper für ⁇ stechbaren.
  • Tube stands for tubes of this type are already known, which, for example, have three tubes arranged one above the other.
  • a tube stand of the type mentioned which is characterized 5 by a vacuum chamber that a number of after has hollow needles directed above, and by an insert which can be positioned above the hollow needles for holding the tubes and which can be lifted off in a guided manner from the vacuum chamber.
  • tubes can be inserted into the tube stand from above and evacuated therein.
  • the tubes only have to have a pierceable elastic stopper in the area of their bottom opening, which is pierced by the hollow needle positioned below when inserted into the insert of the tube stand according to the invention. If the upper end of the tube is closed, for example by a closure cap provided with a shut-off element, then a tube inserted in this way can be evacuated via the vacuum chamber of the tube stand.
  • the chamber bottom of the vacuum chamber has a plurality of upstanding hollow needles, each of which serves to pierce the elastic stopper of a tube inserted from above. The tubes have to be inserted into the tube stand by hand, the operator easily applying the force required to pierce the elastic stopper.
  • a tube can be withdrawn from the associated hollow needle to draw blood by pulling the desired tube up by hand.
  • the hollow needle closes again and maintains the negative pressure once generated in the tube for a sufficient period of time, for example, for taking blood.
  • the insert is preferably lifted from the chamber end of the vacuum chamber by a lever mechanism so that they are released from the hollow needles.
  • the tube stand also serves as a work stand.
  • levers are preferably arranged in the side walls, each of which can be pivoted about pins.
  • the levers preferably have teeth which are arranged on a semicircular arch and work together with correspondingly divided teeth in the side walls of the insert.
  • the levers are expediently provided with elongated holes so that they first have to be raised to form a longer lever arm and then have to be pivoted downwards.
  • at least one cam arranged on a swivel axis serves to lift the insert.
  • guide projections and correspondingly shaped guide grooves are preferably provided for guiding the insert relative to the vacuum chamber.
  • the insert is provided with guide bores into which guide pins arranged on the chamber bottom can penetrate.
  • FIG. 1 shows a perspective illustration of an exemplary embodiment in the assembled state
  • FIG. 2 shows a perspective illustration of the exemplary embodiment from FIG. 1 in an extended state
  • FIG. 3 shows a partial section through the exemplary embodiment according to FIG. 1.
  • FIG. 1 shows an essentially two-part tube stand 1 with a vacuum chamber 2 and an insert 22 for receiving tubes 40 only shown in FIG. 3.
  • the insert 22 is essentially cuboid and has a number of holes in its upper side 23 24, the diameter of which is somewhat larger than the outer diameter of a conventional tube.
  • the elongated insert 22 is guided on its narrow side walls 26 by side walls 4 of the vacuum chamber 2, so that the tube stand 1 has the overall shape of an approximately cuboid block.
  • levers 8 are arranged, which are used to lift the insert 22 out of the vacuum chamber 2.
  • the levers 8 are pivoted outwards and downwards, in a preferred embodiment after lifting parallel to the side walls 26, until an elongated hole 12 provided in the levers 8 has one end on one of the levers 8 in the side walls 4 of the vacuum chamber 2 holding pin 10 is present.
  • the vacuum chamber 2 is connected via a check valve and a hose 20 to a vacuum pump, not shown.
  • FIG. 2 shows in the upper part the insert 22 raised from the vacuum chamber 2, with parallel guide grooves 28 being recognizable in one of its side walls 26.
  • the guide grooves 28 run parallel to one vertical side edge of the insert 22 over its entire height.
  • a lever recess 30 is also arranged between the guide grooves 28, which has teeth 32 in the manner of a toothed rack at least in a partial area and also extends over the entire height of the insert 22.
  • FIG. 2 shows in the lower part details of the vacuum chamber 2, the chamber bottom 3 of which has a hollow needle 18 corresponding to the number of holes 24 in the insert 22 and aligned with these holes 24, which protrude from the chamber bottom 3.
  • the hollow needles 18 expediently have lateral inlet openings; their length and their diameter are dimensioned such that they are able to pierce an elastic stopper 44 inserted in the tube bottom 42 of a separating tube 40 placed in the insert 22 and thus the inside of the separating tube 40 via the chamber bottom 3 and the hose 20 according to Figure 3 evacuate without piercing a cylinder portion from the plug 44.
  • each lever 8 protrude upwards, which have vertical guide projections 7 on their mutually facing surfaces, which cooperate with the guide grooves 28 of the insert 22 and these when lowering or raising them relative to the Guide chamber floor 3 in a vertical direction.
  • the side walls 4 also each have a recess 6, in each of which a lever 8 is mounted.
  • Each of the two levers 8 is provided with recessed grips 14 at its upper end.
  • each lever 8 has an elongated hole 12 through which a pin 10 connecting the side wall parts * is inserted. This pin 10 forms a fulcrum for the associated lever 8 to use 22 to lift off the chamber floor 3.
  • the lower end of each lever 8 is provided with teeth 16, the pitch and profile of which corresponds to the teeth 32 present on the insert 22.
  • Figure 3 shows a partial section through the Rhausenchenstän ⁇ der 1, from which the interaction of the lever 8 with the insert 22 can be seen.
  • teeth 16 are arranged at the lower end of the lever 8, specifically on a circular arc, the center of which coincides with the center of the lower end of the elongated hole 12.
  • the lever 8 is lowered by its own weight and hangs with the upper end of its elongated hole 12 on the pin 10.
  • none of the teeth 16 of the lever 8 is in engagement with the teeth 32 of the insert 22, so that the insert 22nd can be raised or lowered freely and unhindered. This is normally the position in which the insert 22 is positioned above the chamber floor 3.
  • Tubes 40 can then be placed in the insert 22 positioned in this way by inserting a tube 40, the tube bottom 42 of which has a bottom opening 43 closed by an elastic stopper 44, through one of the holes 24 of the insert 22 from above.
  • the insert 22 has an intermediate wall 34 which serves to guide and hold the tube 40 and for this purpose has holes 25 aligned with the holes 24 in the upper side 23.
  • a bottom wall 36 with holes 38 of smaller diameter is arranged under the intermediate wall 34 and serves to hold the tube bottom 42 of an inserted tube 40.
  • the insert 22 is a block with bores for receiving the tubes 40.
  • a tube 40 can either be pulled off the associated hollow needle 18 by hand, the stopper 44 automatically closing the puncturing point due to its elasticity and maintaining the vacuum established for at least some time.
  • the hollow needles 18 should only pierce the stopper 44, but not cut out a small plug.
  • the tip of the hollow needles 18 is expediently closed, while 18 entry slots are provided in the jacket of the hollow needles.
  • the levers 8 are expediently first raised until the lower end of the elongated hole 12 abuts the pin 10 and the teeth 16 of the lever 8 can be brought into engagement with the teeth 32 of the insert 22 by pivoting the lever 8. It follows without difficulty from the drawing that when the lever 8 is pivoted downwards, the insert 22 is lifted up and thus lifted off the chamber base 3. The one for this Required effort can be measured by the length of the lever 8 so that levering the insert 22 out of the vacuum chamber 2 does not represent undue stress.
  • the device according to the invention can be produced without difficulty in the plastic injection molding process, the assembly effort being low. Only the pins 10 and the hollow needles 18 would be designed as metal parts. Another advantage of the device according to the invention is that tubes 40 can be used, which need only have an elastic stopper 44 in their tube bottom 42; a piston with the associated piston rod is no longer required, which considerably cheapens the manufacture of the tube 40, which is a mass and consumable item, for example in the form of a blood collection system.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Chemical & Material Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Un support pour éprouvettes avec dispositif d'évacuation comprend une chambre à vide (2) présentant un certain nombre de canules (18) dirigées vers le haut, et une pièce d'insertion (22), destinée à supporter les éprouvettes (40) et positionnée au-dessus des canules (18). Des guides permettent d'enlever par coulissement la pièce d'insertion (22) de la chambre à vide (2).
EP85902443A 1984-05-08 1985-05-04 Support pour eprouvettes avec dispositif d'evacuation Withdrawn EP0179886A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8413879U DE8413879U1 (de) 1984-05-08 1984-05-08 Röhrchenständer mit Evakuiereinrichtung
DE8413879U 1984-05-08

Publications (1)

Publication Number Publication Date
EP0179886A1 true EP0179886A1 (fr) 1986-05-07

Family

ID=6766603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85902443A Withdrawn EP0179886A1 (fr) 1984-05-08 1985-05-04 Support pour eprouvettes avec dispositif d'evacuation

Country Status (3)

Country Link
EP (1) EP0179886A1 (fr)
DE (1) DE8413879U1 (fr)
WO (1) WO1985005039A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637869A1 (de) * 1986-11-06 1988-05-19 Draegerwerk Ag Mehrfachhalterung fuer pruefroehrchen
US5201232A (en) * 1988-12-29 1993-04-13 Technicon Instruments Corporation Integrated sampler for closed and open sample containers
FR2734640B1 (fr) * 1995-05-23 1997-08-14 Dubus Yves Francois Pierre Dispositif et procede pour tests et analyses
US5993745A (en) * 1998-03-04 1999-11-30 Roche Diagnostics Corporation Archival storage tray for multiple test tubes
CN114405581B (zh) * 2021-12-29 2023-05-23 淄博市中心医院 一种输血科用配血试管架

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE839114C (de) * 1950-09-19 1952-05-15 Julius Kalthoff Gestell fuer Reagensglaeser
US4358425A (en) * 1981-02-17 1982-11-09 Beckman Instruments, Inc. Penetrable centrifuge tube
ZA825774B (en) * 1982-02-16 1983-06-29 Becton Dickinson Co Stopper for test tubes, and the like

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8505039A1 *

Also Published As

Publication number Publication date
DE8413879U1 (de) 1985-09-05
WO1985005039A1 (fr) 1985-11-21

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