DE2024618A1 - Device for introducing or removing a fluid, in particular a liquid, into or from a container - Google Patents

Description

Patent attorney * } O. MAY 1970

Dipl. Ing. C. Waiiach

Dipi. Ing.G. Koch 12581 H / r

Dr. T. Haibach
8 Munich 2
Kaufingerstr. 8, Tel. 240275

Beckman Instruments Ltd., Glenrothes, Fife, Scotland, Great Britain

Device for introducing or removing a fluid, in particular a liquid, into or out of a container

The invention relates to a door device for introducing or removing a StrtSmngsmittela, in particular one Liquid, in or on a container, as well as the container for use in this device and a closure cap for this container,

The device for introducing or removing the liquid is characterized, according to the invention, by an upwardly directed holder, mounted on this holder with a braze on it downwardly Injection fuel for the purpose of introducing the injection needle i «a tubular container which is arranged upright below the injection syringe on a holder with an essentially vertical axis, by means of guide means on the mounting frame, by means of which the injection needle is guided and held when it is inserted into the container, wherein the syringe iat arranged so that the long Injektioneepritzennadel is shifted one with respect to Λ · τ Behälteraohee inclined Bewegungelinie "such that the needle during insertion of the district, c · B · against the -

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PAD ORIGINAL

arrives, bends and strokes along this container wall, aowlο through devices for upward or downward movement of the plunger of the injection syringe opposite the cylinder of the syringe.

For the container to be used in this device can according to an advantageous embodiment of the invention It is provided that the container is formed with a constriction at one point between its two ends which forms an inner verengurs in the dam container,

The container is preferably the tip of the needle with a dux-ch the syringe of the device according to the invention pierceable Verachlußkappe closed. According to In a preferred embodiment of the invention, it can be provided for this closure cap that the closure cap consists of plastic material and a bowl or » cup-shaped body which is provided with an outwardly projecting flange on its open end face, the leg insertion of the closure cap into the one to be closed Container opening against the outer surface of the container to the system koaaat, aowie one the bottom dea napf- b «w. has a perforable membrane forming a cup-shaped body

In the following, embodiments of the invention are based on heed the drawing; in this show>

Fig. 1 in shoulder tansioht a closure cap " an embodiment of the invention}

Fig. 2 is a similar view of "Ines FltiealgkeitabehU-

tera according to an execution form of the Erf indna *,

009848/1345 /

the rait dor the cap according to Fif> 1 locked iet | from the figure iat also dl oblique movement of the needle of a hypodermic syringe visible from the container for withdrawing liquid;

3 shows a device according to the invention for injecting liquid into a container or to remove the liquid from the oea Container according to the invention;

Figures k and 5 details of the device.

Fig. 1 shows a sectional view of a closure cap 10 sum closure of the opening of a container. The cap 10 is made of plastic material, preferably polyethylene, it consists of a cup-shaped or cup-shaped body 11, which is provided on its one end face with an outwardly projecting flange 12, which when the cup-shaped body of the VersohluÄ -kappe 10 is placed tightly on a The opening to be closed in a container comes to rest against the surface of the container. The bottom 13 of the closure cap 10 is designed in the form of a thin, perforable membrane the napfförmlge body 11 is on its outside old two spaced-apart annular rib "n lh provided which aittele the Versohlußkapp · 10 in fIdssigkeitedichteai passport" seat in the open · end of a rohrfSraiigen Keep he ·, for example, a · test tube "insetzbar is.

In Fig. 2, the closure cap 10 is open in passport β its lsi End of a tubular container · 18 shown! the B -

.A

00.9848 / 1345

ORIGINAL

container 18 is at a point between its two ends at 19 with a constriction b * w. Waist fitted that a constriction 20 in the clear width of the container 18 forms.

For example, if the container 18 contains a blood sample or another sοrun which contains cur separation in two indelible components is centrifuged, as a result of the constriction 19 the above component by means of an injection syringe (not shown) from the upper part 21 of the container 18 without decanting. while the blood clot or other sediment remains in the lower part 22 of the container 18.

3 shows a device according to one embodiment of the invention for withdrawing liquid from a container 18 or injecting the liquid into the container, the container being held upright on a support frame, for example a tray 25. The device has a stand 30 and laterally spaced sliding guides * η 31, of which only one is inclined and on which a support frame 32 for an injection syringe ε between upper and upper limit positions and can be firmly locked in each intermediate division. In the support frame 32, the cylinder 33 of at least one downwardly directed injection syringe 3k is held, which has a reciprocating pin 35 and a needle-like tip kO . The injection needle Uo of the syringe is made of plastic, such as, for example, polyethylene, polytetrafluoroethylene or polypropylene; its bore has a diameter of 0.015 to 0.020 inches and it is sufficiently rigid to be able to penetrate the membrane 13 of the closure cap 10, among other things. A constant

009848/1345

bar-3 <> is connected at one end with dea piston 35 and at its other end with a boom 37 on Ihrrra, is relative to the frame 32 movable relative to ₁ to a reciprocating motion piston 35 dee in the Zylindor 33 s * J cause"

Means »of a Precision Tooth Teeth Jiaechaaiaraue 38, of

a part of which is shown attached to the boom 37, k & tm. the piston 35 in controllable Waieo for delivery predetermined amounts of liquid from the injection syringe

3k can be adjusted. With the help of one with the boom 37 Λ

connected hand control lever 39, the piston 35 to

Load the syringe 34 with the liquid to be dispensed

to be stuck above *

As can be clearly seen from FIG. 3, the syringe 3h is mounted in such a way that it moves at an angle of about 10 ° with respect to the vertical during the upward or downward movement (the needle tip 40 of the injection syringe 34 therefore enters the container 18 along a line inclined with respect to the container axis, in such a way that it comes to rest against the rare wall of the container 18 and, when there is no further movement, it bends and brushes along the wall of the Bahlltar *

Figures k and 5 illustrate the deflection of the needle kO in the course of its introduction into the container 18.

The mounting frame 30 has guide means in the form of a Habelaras kl provided with an opening in such an arrangement that the needle kO is thereby guided during its downward movement to penetrate the membrane 13 of the Varechlußkappe 10, as shown in FIGS

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_BATH ORIGINAL

In addition, the guide arm 4 prevents the closure cap 10 and the container 18 from being displaced when pulling out the Injekiionsopx-itz-enundot kO,

The membrane 13 of the closure cap 10 is sufficiently elastic that it can be calibrated after the needle 3 has been pulled out. 40
closes again by itself, at least to a degree
who dusts the container.

Fat defeated J

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BATH

Claims (6)

Pe * corresponds to claims / 1J device for introduction baw. sur Entnahae one VjL J Fluid * "In particular a liquid, into and out of a container, gekennzeich" net t by an upwardly directed support (30, 31, Fig. 3) of this bracket (j0 _f 31) wait-directed assembled syringe (3 * 0 «with a plastic needle api tee f * tO), by means (31.32) for upward or downward adjustment of the injection syringe for the purpose of introducing the injection needle (Uo) into a tubular container (18) below the injection syringe {jh) arranged upright on a holder (25) with a substantially vertical axis, by guiding means {kl) to the holder part, by means of which the injection syringe needle (ko ) is guided and held when inserted into the container (18), whereby the injection syringe (3 * 0 ao arranged so that the injection syringe identification needle (ho) is rerachoben along a line of movement inclined with respect to the container ache, in such a way that the needle when inserting your contact points d The container wall arrives, bends and stretches along the container wall, as well as through devices (j6 bia 39) eur Auf- bxw. Downward movement of the piston (35) of the injection tube opposite the cylinder (33) of the syringe. 2. Device according to claim 1, characterized in that the injection needle (ko) made of Kunatatofftaaterial from the group of polyethylene, polytatrafluoroethylene and polypropylene breatheth. 0098 ^ 8/1345 BATH ORIGINAL 3. Tubular container closable at its open end by a cap for use in of the device according to claim 1 or 2, characterized in that the container (i8, Fig. 2) is at one point between pure two bathing bit of a constriction (19) is formed »the one inner constriction (2O) forms in the container. H » Closure cap for a container for use in the device according to claims 1 and 2 * in particular for a container according to claim 3, characterized in that the closure cap (1O, Figures 1 and 2) consists of plastic material and a bowl. Cup-shaped body, which is provided on its open end face with an outwardly projecting flange (i2), which can rest against the outer surface of the container when the cap is inserted into the container opening that closes the container, as well as a bottom of the cup-shaped or cup-shaped Body «(11) forming perforable Meabr & a (13). Closure cap according to claim k _9, characterized in that the cup-shaped or cup-shaped body has an outer side between the flange (12) and the base at a distance from one another in an angsordaeto ring-shaped rib or vttlate ( 1h). 6. Closure cap after spoke iodir 5 «thereby draws that the inner surface of the obesity "iJ3ka]" | M> frustoconical 1st. 009848/1345 Blank page