DE2438892A1 - LOCKABLE CONTAINER - Google Patents

Description

Dr.-Ing. Herbert Moser

Patent attorney
75 Karlsruhe, Nowackaniageis A 699

Applicant: Donald Albert Harn, High Wycombe, Buckinghamshire, (Great Britain)

Lockable container

The foundation concerns a lockable container and appears specifically, but not exclusively, for certain types of food containers as well as for the evacuated Collection tubes useful as they are for collecting blood samples to be used.

According to the invention the container is provided with a tubular mouthpiece _s and with a closing piece, which engages in the tubular mouthpiece in such a way - that a vacuum-tight seal is achieved, and which respectively in a screw thread or a corresponding shape with a collar part *, shapings engages on the outer surface of the tubular Munoe piece in such a way that the collar part is moved by turning in the direction of rotation in such a way that the collar part detaches from the mouthpiece, and that the collar part and the closure part have axially opposite, operative surfaces, whereby the

~ 2 - ORIGINAL INSPECTED

of the collar part acts in such a way that the collar part aas .Verschlußstück pulls out of the round piece.

The collar part can expediently have a hanging flange extending radially inward between its ends, which engages under a shoulder that is attached to the locking piece through a head part of this locking piece is formed with the flange and the shoulder the corresponding axially opposed, cooperating Form surfaces.

The part of the closure piece which engages in said mouthpiece can preferably be conical in shape, whereby the initial penetration of air through the gap formed when the closure is opened takes place relatively slowly during the removal of the closure cap and is completed before the screw turn of the Collar part is finally released from the container.

In another possibly expedient embodiment, the collar part can have a gap on its circumference have, as well as a joint diametrically opposite this gap, whereby the collar part from the screw thread or tines equivalent projection or projection. Projections of the mouthpiece of the container are released can after the locking piece is inserted. Of the The collar part can expediently be designed in one piece, where the joint is advantageously provided by a gap in the Collar part is formed opposite groove. Sin

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ORIGINAL INSPECTED

Such a collar part can be "or" in a casting process. Injection molding process can be made from polypropylene. In another possibly expedient embodiment the collar part can be composed of two half parts, which are connected by a pivot pin sina, and a locking device can also be provided, with the help of which the two half-parts in their position on the mouthpiece of the container are locked against each other.

The collar part can also advantageously have an inner sleeve made of an elastically deformable one Ilmaterial such as rubber is made. This expediently has one such inner diameter that they are in accordance with the screw turn or the corresponding Protrusion or the projections automatically applies shaping.

In an expedient form of the container, the Scliraubenwindung or the corresponding projection or the Projections have a larger outer diameter than the body of the container, so that the collar part from the bottom End slid over the container and into engagement with the screw thread or equivalent projection or the projections can be brought. At this A wide variety of collar part shapes can be used at.alteriorm be used.

Some embodiments of the invention are set out below can be described as examples. The description relates

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BATH

refer to the attached schematic drawing which result in further features of the invention.

FIG. 1 shows a longitudinal section through an evacuated blood collection tube according to FIG Invention,

Figure 2 shows the removal of the plug from the ear,

Figure 3 shows the drill with a cap replacing the plug, and

Figures 4 and 5 show two alternative forms of the Part of the collar, FIG. 5 being an axial section.

Referring to Figure 1 of the drawings, there is a blood collection tube 10 can be seen, which can be made of glass, plastic or other suitable materials. At the Tube 10 is attached to a mouthpiece 11 which is smooth on its inside, but an outer screw thread which extends over a length portion. A collar part 13 shows a corresponding one inner screw formation over a length range 14 and is placed on the mouthpiece 11.

A closure piece 16, which consists of an elastic rubber or plastic material, contains a plug-shaped part which goes into the mouthpiece of the ear is pressed in and also shows an outside of the

509808/0391 - 5 -

Higher lying head part 17, which has an axially adjacent lting shoulder that forms against or close to the upper End face of the collar part lies. The surface of the cap is concave, and the plug-shaped part which engages in the mouthpiece of the ear 10, is partially hollow, whereby the thickness of the closure piece in the axial direction is reduced and a weakening point is formed as a diaphragm 1ö. The inner end portion of the plug portion is on its radial outer surface conically designed.

In the position of use, the tube 10 'is closed, as shown in FIG. 1, and its interior space can be sterilized. With an advantageous. The method of sampling the tube is used in conjunction with a holder in the form of an outer, transparent tube, in the bottom of which an injection needle is attached, which has points at both ends. One end of the needle extends a short distance axially into the holder tube. The tube 10 is then partially pushed forward into the holding tube with the closure piece first, so that one end of the needle enters the diaphragm 18 of the closure piece, but does not yet pierce it. When the outer end of the needle is inserted into a vein, the tube 10 is forced further into the holding tube, causing the free end of the needle to pierce the diaphragm 18 so that the blood is drawn into the tube 10 via the needle. With the needle withdrawn from the vein, remove the tube 10 from the holding tube.

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ORIGINAL INSPECTED

When the tube 10 must subsequently be opened, will the closure piece, as shown in FIG. 2, is removed by exerting a unscrewing movement on the axis part will. The collar part pulls out the stopper part in a controlled motion sequence, which causes the splashing of the blood is avoided. The conical fitting of the end of the plug part assists in this regard in that it reduces the flow rate of the air through "the shutter when this in the first Moment is opened. Splashing can also be further restricted by the length of engagement of the screw turn of the collar part on the container is chosen to be large that the collar part and the riöh're remain in singing grip until the plug part is essentially pulled out of the mouthpiece. If the drill is to be opened, the collar part is screwed on first, and then removed the plug. Alternatively, a separate cap 20 can also be attached, as shown in FIG Figure 3 is shown.

, The collar member 13 may if desired, extending partially over the top of the closure member and thereby central opening for the passage of the needle in one release "In this case, for example the collar part and the closure piece can be both placed together on the Drill and from this removed.

Two alternative embodiments of the collar part are particularly shown in Figures 4 and 5 of the drawing.

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BAD ORIGINAi.

FIG. 4 shows a collar part 22 made of polypropylene is made and has a gap 23 on its circumference and a hat 24 opposite this gap 23, which ein'Gelenk forms, whereby the collar part is removed from the container after the plug has been inserted. In an alternative embodiment the collar part consists of two separate half parts, which clasp around the neck part of the container. If desired, a larger, outer sleeve can also be used the collar part can be pushed in order to keep it closed while the closure piece is being pulled out. If the collar part is made up of two half parts, these half-parts can expediently be arranged on corresponding jaws of a fogging device similar to a pair of pliers, whereby the halves of the neck part of the container can be encompassed in a clamp-like manner.

The collar part shown in Figure 5 contains a solid one Outer piece 3ü and an inner sleeve 31, which consists of a softer, elastic material. When using, if the collar part is to be placed on the screw-threaded mouthpiece of the container, the elastic material has an inner diameter which is smaller than the largest diameter of the Screw turn and in this way automatically pushes itself into one that is adapted to the screw turn Shape. The collar part then behaves in the same way like a collar part, which has a firmly molded screw turn having.

509808/0391 BADORiGiNAL

Instead of a continuous screw winding, this can be done Dog piece of the barrel 10 and / or the interior of the collar part helically inclined origins or other Have equivalents of a screw turn. In some Cases, the bore of the tube is straight and so is the turn extending on the outer surface, in in other cases the tube may have a narrowed neck and the outer peripheral surface of the screw thread in this case follows the outer surface of the tube accordingly.

BATH ORIGINAL

509808/0391

Claims (1)

Expectations 1. Closable container, characterized in that a mouthpiece on this container (10) (11) are provided, the closure piece (16) in the tubular mouthpiece (11) for production a vacuum-tight closure can be used that a collar part engaging in a screw thread on the outer surface of the tubular mouthpiece (11) (15; 22; 30,3D is arranged such that this collar part can be released from the mouthpiece (11) by a screwing rotary movement, and that on the collar part and on the 7 closing piece (16) in the axial direction of the container Opposite, cooperating surfaces are provided are, which come into operative connection during the loosening screw movement "of the collar part, that the Collar part of the closing piece (16) aas the mouthpiece. (11) pulls out. 2. Container according to claim 1, d a d u rc h g e k e η n-v shows that the collar part (13) has a Hingi'lansch projecting radially inward between its end faces has, which is under a pinning shoulder engages, which is formed on the locking piece by a head part 'of this locking piece, and that the Flange surface of this hanging flange and the shoulder surface of the locking piece - the axially opposite, form in operative connection stepping surfaces. S098Ö8 / 0391 3. Container according to claim 1 or 2, characterized marked that a collar part (1>) on its circumference a gap (23) and a uieseni gap has opposite joint, so also the collar part (13) after inserting the locking piece (16) out of engagement with the screw thread or the screw thread equivalent projections on the dog piece (11) of the Container (10) can be brought. 4. Container according to claim 3, characterized in that that the gap (23) and the hinge axis are essentially parallel to the longitudinal axis of the container lie. 5. Container according to claim 3 or 4, characterized characterized in that the collar part (13) is formed in one piece, and that the joint durcü a groove (24) lying opposite the gap (23) is formed. 6. Container according to claim 3 or 4, characterized in that the collar part from consists of two half parts, which are connected by a pivot pin, and that releasable locking parts are provided which hold the two half parts together in their position on the mouthpiece of the container. 7. Container according to claim 1, characterized in that the collar part (30) has an inner Has sleeve (31) made of elastically deformable material. 509808/0391 - 11 - . . Container according to claim 1 or 2, characterized characterized in that the screw thread or the corresponding projection or projections have a larger outer diameter than the body of the container (10) in such a way that the iiragteil (13) from the bottom of the container in Engagement with the screw winding or the equivalent Can be brought projection or the projections. 'y. Container according to claim 1, characterized in that the closure piece (16) has a plug part engaging in the mouthpiece (11), and dm: the length of the screw turn on the collar part (13) is chosen so that the screw turn engages the container (10) remains until the plug part is essentially outside the mouthpiece (11) of the container (10). 10. Container according to Ansprucu 9, dad. arch, marked t that the stem part is designed conically at its stecksei term "end. 11. Extraction device, especially for taking blood under Use of a container according to one of Claims 1 to IG, characterized in that daj, i the container can be moved in an old tube, una that this üalteröhre at one end a two-sided has a sharpened injection needle, with a tip of the needle inside the holding tube so an ^ e- SAD 509808/0391 is arranged that when the container is moved, the closure piece is in a predetermined area (18) pierces. 509808/0391