EP3174812B1 - Container having a head piece, which container can be or is filled with a medium - Google Patents

Description

The invention relates to a container with head having the features in the preamble of claim 1.

Plastic containers, which are manufactured in a blow molding, filling and sealing process (BFS process), as for example in the EP 2 269 558 A1 described and known in the professional world under the name bottelpack® system, are used for food and luxury products and in medicine with great advantage for the packaging of pharmaceuticals, diagnostics, enteral nutrition and medical devices, such as rinsing and dialysis solutions. A significant advantage of such containers for such a purpose is that the contents have exclusive contact with a polymer forming the container material, typically a plastic such as LDPE, HDPE or PP. In the case of one-piece containers manufactured and filled according to this BFS process, the germ reduction / sterility of the contents can be ensured for longer periods of time. Containers intended for injection or infusion have a special shape of the head area (hereinafter referred to as "head piece") for the formation of accesses to the container contents. The one-piece design of container and head allows a secure sterility of the contents with particularly efficient implementation of the manufacturing process. Be on the head piece Caps with elastomer sealing elements (DIN ISO 15759) attached by welding or overmoulding. Such head pieces, as known from DIN ISO 15759, have a head surface in the form of a convex curve having a head membrane which is penetratable when using the container by means of a piercing spike or a cannula. Containers with such headers have several disadvantages. Because of the reduced risk of injury to the operating personnel, preferably less sharp piercing spikes are used. There is a risk that the head membrane inverts during the piercing process inside and there is a leak. Leaks can also occur if the head piece is punctured several times, eg with a piercing spike for a removal procedure or with a cannula for transferring a separate drug component into the relevant container, before the actual application of the container contents.

The DE 25 04 253 A1 describes a generic container with header that can be filled or filled with a medium and made of plastic materials using a blow molding, filling and sealing process, with a transition region between the container and at least one arranged on the head end side, by means of a piercing or Einschneidteils penetratable first type of head face, which runs with a predeterminable curvature, wherein at least one second type of head face is present on the head piece, which likewise has a predeterminable curvature which is the same as, but preferably different from, the curvature of the head face of the first type, wherein the respective head surfaces merge into one another to form a total area which spans the free end of the transition region facing away from the container, and wherein the head piece is an integral part of the container, the head surfaces being rotationally symmetrical are et and run concentrically to a longitudinal axis of the container.

More containers go out of the EP 0 763 476 A1 , the EP 0 621 027 A1 , the US 2013/0134161 A1 , the EP 0 763 476 A1 and the DE 195 00 459 A1 out.

Based on this prior art, the invention has the object to provide a particular medical use container provided, which is characterized by improved performance characteristics and a particularly safe handling, for example, in parenteral or enteral application guaranteed.

According to the invention this object is achieved by a container having the features of claim 1 in its entirety.

Accordingly, a significant feature of the invention is that with two types of head surfaces, one head surface is convex and the other head surface is concavely curved.

It is thus provided that at least one second type of top surface is present on the one-piece component of the container-forming head piece, which has a predetermined curvature, which is different from the curvature of a second type of head surface as stated above, wherein the respective head surfaces below Forming a total surface into each other, which spans the free, directed away from the container end of the transition region. Characterized in that instead of a uniform head membrane, which spans with uniform curvature of the end of the head piece, different top surfaces (convex-concave) are formed, which preferably form different curvatures at the head end, is for the total surface increased resistance to deflection and easier piercing, Cutting or penetrating achievable. Dodge the head membrane during the opening process and the risk of leaks are minimal. This is the handling even when using less sharp puncture spines, cutting or thick cannulas safely possible. By the design of the different top surfaces and specification of a penetration surface a simple, cost-effective solution is also created to optimally adapt caps to the top surfaces, with respect to DIN ISO 15759 significantly reduced elastomeric sealing elements, which according to the invention substantially rest only on the penetration surfaces or parts thereof.

Different types of top surfaces provided on the header can merge into each other directly or via a connection area. In particularly advantageous embodiments, a further, third type of top surface is present, which in turn has a different curvature than the respective other top surfaces.

Also, the arrangement can be made with advantage so that top surfaces have surface pieces which are arranged to extend transversely to this longitudinal axis.

With particular advantage, the arrangement can also be made so that at least one of the top surfaces forms a web-like stiffening rib, which is placed on each adjacent head surface or the adjacent arranged surface parts at least one other top surface interconnects.

The invention also caps with elastomeric sealing elements, which abut substantially only on the penetration surfaces of the respective head piece.

Fig. 1

eine gegenüber einer praktischen Ausführungsform geringfügig vergrößert gezeichnete Vorderansicht eines Behälters in Form einer Infusionsflasche mit zwei Entnahmeöffnungen, von denen die in der Figur obere mit einem Kopfstück gemäß dem Stand der Technik nach DIN ISO 15759 versehen ist;

Fig. 2

eine im kleineren Maßstab gezeichnete, perspektivische Schrägansicht der Flasche von Fig. 1;

Fig. 3a

eine gegenüber einer praktischen Ausführungsform in etwa doppelter Größe gezeichnete, perspektivische Schrägansicht eines Ausführungsbeispiels eines Kopfstückes eines Behälters;

Fig. 3b

einen Teilquerschnitt, der eine abgewandelte Querschnittsform für die stegartige Rippe des Kopfstücks des Ausführungsbeispiels von Fig. 3a zeigt;

Fig. 4a

eine Vorderansicht eines weiteren Ausführungsbeispiels des Behälters;

Fig. 4b und 4c

eine Vorderansicht bzw. Draufsicht des Kopfstücks eines weiteren Ausführungsbeispiels des Behälters;

Fig. 5a bis 5c

eine Vorderansicht bzw. perspektivische Schrägansichten weiterer Ausführungsbeispiele;

Fig. 6a und 6b

eine Vorderansicht bzw. perspektivische Schrägansicht eines erfindungsgemäßen Behälters;

Fig. 7a

eine Vorderansicht eines weiteren Ausführungsbeispiels des Behälters;

Fig. 7b, 7c, 7d

perspektivische Schrägansichten (7b, 7d) bzw. eine Seitenansicht (7c) einer abgewandelten Ausführungsform des Kopfstücks des Ausführungsbeispiels von Fig. 7a;

Fig. 8a und 8b

eine Vorderansicht bzw. perspektivische Schrägansicht eines weiteren Ausführungsbeispiels;

Fig. 9a und 9b

eine Vorderansicht bzw. perspektivische Schrägansicht eines weiteren Ausführungsbeispiels des Behälters;

Fig. 10a und 10b

eine Vorderansicht bzw. perspektivische Schrägansicht eines weiteren Ausführungsbeispiels;

Fig. 11

eine perspektivische Schrägansicht eines Kopfstückes eines weiteren Ausführungsbeispiels;

Fig. 11a

eine der Fig. 11 entsprechende Darstellung mit zusätzlicher, verstärkender Rippe;

Fig. 12 eine

perspektivische Schrägansicht eines eines weiteren Ausführungsbeispiels des Behälters;

Fig. 13

eine perspektivische Schrägansicht eines weiteren Ausführungsbeispiels;

Fig. 13a

eine Abwandlung des Ausführungsbeispiels von Fig. 13 mit zusätzlicher verstärkender Rippe;

Fig. 14

eine perspektivische Schrägansicht einer abgewandelten Ausführungsform des Kopfstücks von Fig. 10a und 10b;

Fig. 15a

eine Vorderansicht eines weiteren Ausführungsbeispiels des Behälters mit einer Schnittdarstellung einer Decckappe des Kopfstücks, Zustand vor einem Schweißvorgang;

Fig. 15b

eine perspektivische Schrägansicht einer Deckkappe für das Kopfstück des Ausführungsbeispiels von Fig. 5a;

Fig. 15c

eine Schnittdarstellung eines Kopfstücks mit aufgeschweißter Kappe gemäß Fig. 15b nach dem Schweißvorgang;

Fig. 16a

eine perspektivische Schrägansicht einer abgewandelten Ausführungsform einer Deckkappe für einen Behälter gemäß dem Ausführungsbeispiel von Fig. 11;

Fig. 16b

eine Schnittdarstellung der Kappe gemäß Fig. 16a auf einem Kopfstück gemäß dem Ausführungsbeispiel von Fig. 11;

Fig. 17

eine der Fig. 1 entsprechende Darstellung einer Ausführungsform einer Infusionsflasche mit zwei Entnahmeöffnungen, von denen eine mit einem Schraubanschluss versehen ist;

Fig. 18

eine der Fig. 1 entsprechende Darstellung, wobei an einer Entnahmeöffnung ein Kopfstück gemäß Fig. 5a vorgesehen ist, und

Fig. 19

die Infusionsflasche von Fig. 18, wobei das unten liegende Kopfstück mit einer Endkappe gemäß Fig. 15b versehen ist, vor dem Schweißvorgang.

The invention with reference to embodiments shown in the drawings will be explained in detail. Show it:

Fig. 1

a comparison with a practical embodiment slightly enlarged drawn front view of a container in the form of an infusion bottle with two removal openings, of which the upper in the figure is provided with a head according to the prior art according to DIN ISO 15759;

Fig. 2

a drawn on a smaller scale, perspective oblique view of the bottle of Fig. 1 ;

Fig. 3a

a respect to a practical embodiment approximately twice the size drawn, perspective oblique view of an embodiment of a head of a container;

Fig. 3b

a partial cross section, which is a modified cross-sectional shape for the web-like rib of the head piece of the embodiment of Fig. 3a shows;

Fig. 4a

a front view of another embodiment of the container;

Fig. 4b and 4c

a front view and plan view of the head piece of another embodiment of the container;

Fig. 5a to 5c

a front view and perspective oblique views of other embodiments;

Fig. 6a and 6b

a front view and perspective oblique view of a container according to the invention;

Fig. 7a

a front view of another embodiment of the container;

Fig. 7b, 7c, 7d

perspective oblique views (7b, 7d) and a side view (7c) of a modified embodiment of the head piece of the embodiment of Fig. 7a ;

Fig. 8a and 8b

a front view and perspective oblique view of another embodiment;

Fig. 9a and 9b

a front view and perspective oblique view of another embodiment of the container;

10a and 10b

a front view and perspective oblique view of another embodiment;

Fig. 11

an oblique perspective view of a head piece of another embodiment;

Fig. 11a

one of the Fig. 11 corresponding representation with additional, reinforcing rib;

Fig. 12 a

perspective oblique view of another embodiment of the container;

Fig. 13

an oblique perspective view of another embodiment;

Fig. 13a

a modification of the embodiment of Fig. 13 with additional reinforcing rib;

Fig. 14

an oblique perspective view of a modified embodiment of the head piece of Fig. 10a and 10b ;

Fig. 15a

a front view of another embodiment of the container with a sectional view of a Decckappe the header, condition before a welding operation;

Fig. 15b

an oblique perspective view of a cover cap for the head piece of the embodiment of Fig. 5a ;

Fig. 15c

a sectional view of a head piece with welded cap according to Fig. 15b after the welding process;

Fig. 16a

a perspective oblique view of a modified embodiment of a cover cap for a container according to the embodiment of Fig. 11 ;

Fig. 16b

a sectional view of the cap according to Fig. 16a on a header according to the embodiment of Fig. 11 ;

Fig. 17

one of the Fig. 1 corresponding representation of an embodiment of an infusion bottle with two removal openings, one of which is provided with a screw connection;

Fig. 18

one of the Fig. 1 corresponding representation, wherein at a removal opening a head piece according to Fig. 5a is provided, and

Fig. 19

the infusion bottle of Fig. 18 , wherein the lower head with an end cap according to Fig. 15b is provided before the welding process.

The Fig. 1 to 5c . 7a to 8b . 10a to 11a and 13 to 19 are merely illustrative of the background of the invention and are not the subject of a claim.

The Fig. 1 and 2 show a container prepared by the aforementioned BFS method in the form of an infusion bottle 1 with an upper removal position 3 and a lower removal position 5. The bottle 1 is made of a plastic material such as LDPE, HDPE, PP or PET. For example, in a multi-layered embodiment, polyolefins may be provided in combination with EVOH, PET, COC, COP, PA, or the like.

In Fig. 1 and 2 the bottle 1 in the drawing overhead a head piece 7, which corresponds to the prior art according to DIN ISO 15759. For containers with headers of this type caps can be connected with an elastomeric sealant (DIN ISO 15759), for example, by welding, encapsulation or sealing with the head of the filled and sealed bottle 1. At the front end of the head piece 7, a head surface 11 is provided for removal and / or Zufüllvorgänge, which spans in the form of a penetrable by a cannula or a puncture mandrel head membrane a transition region 13, on which the head piece 7 merges into the neck portion 9 of the bottle 1 , The head surface 11 formed by this head membrane spans in the prior art, the transition region 13 with a uniform convex curvature.

The Fig. 3 to 15a and FIGS. 17 to 19 show, partly in different depictions, ie without the illustrated bottle body 1, various embodiments of containers with head pieces 7 which have different types of head surfaces. That's how it shows Fig. 3a an example in which, in addition to a top surface 11 of the first type, which spans the transition region 13 with convex curvature like the head surface 11 in the prior art, a head surface of the second type is provided in the form of a reinforcing rib 15, the one of the head surface 11 of the first kind forms clearly projecting web, which spans the head surface 11, located in this diametrically. This web-like rib 15 increases the resistance to deflection of the curvature of the head surface 11 into the container interior and allows the secure concerns the elastomeric component of a cover cap (not shown) and thus the secure sealing of the pierced mandrel. The Fig. 3b shows for the reinforcing rib 15 of the Fig. 3a a modified cross-sectional shape in which the top of the rib 15 is not flat, but convexly curved.

Fig. 4a to 4c see as reinforcing or stiffening element a bridge body 17, which spans the free end of the transition region 13 in the form of a protruding head with an oval outline and which forms at its frontal, upper end a top surface 19 of the first type with only slight convex curvature. At the foot of the bridge body 17 is followed by another head surface 21, which in turn convex, but with a greater curvature than the head surface 19 extends. As Fig. 4c shows, the largest width of the bridge body 17 is slightly more than half the diameter of the transition region 13, and the height of the bridge body 17, measured to the surrounding top surface 21, as the comparison of Fig. 4b and 4c shows, slightly less than half of the largest width of the bridge body 17. From the front-side head face 19, the side wall 23 extends from a surrounding the head face 19 rounding 25 from the surrounding head face 21 out.

The Fig. 5a and 5b show an embodiment in which protrude from a top surface 27, which spans the transition region 13, two nipple-like shaped bumps 29. The bumps 29 are spaced apart on a line 27 diametrically extending on the head surface and form at its front end in each case a round, easily penetratable head surface 31. These have only extremely slight curvature, ie they are almost parallel to the main plane of the top surface 27th A side wall 33 with a concave curvature connects the end face 31 with the surrounding head face 27. In a further embodiment (not shown), a web-like rib, as in FIG Fig. 3a . 3b , run between the humps 29. Fig. 5c shows a modification opposite FIG. 5a . 5b , wherein the head surface 31 is not provided at the upper end of the bumps 29, but in contrast is set back inwards.

The Fig. 6a to 9b show further embodiments in which all the top surfaces are rotationally symmetrical and concentric to a longitudinal axis 35 of the transition region 13 extend. In the example of Fig. 6a and 6b At the front edge of the circular cylindrical transition region 13, a convexly curved head surface 37 is formed like a torus. This top surface 37 concentrically surrounds a circular top surface 39 in the form of a concavely curved trough, from which in turn a further top surface 41 in the form of a convexly curved, concentric to the axis 35 dome rises. The radial width of the edge-side, outer top surface 37 is about 1/6 of the diameter of the transition region 13. The diameter of the top surface forming the top surface 41 is about 1/3 of the diameter of the transition region 13. The depth of the trough 39 forming the trough in turn is about 1/16 of the diameter of the transition region 13.

The head piece 7 of the embodiment of Fig. 7a to 7c has subsequently to the front edge of the circular cylindrical transition region 13 a convexly curved head surface 43, which surrounds the transition region 13 as part of a torus. This head face 43 surrounds a hump 45 which is concentric with the axis 35 and forms a convexly curved head face 47 on its upper side. The radial width of the outer edge-side head surface 43 corresponds to the width of the peripheral head surface 37 of the example of FIG Fig. 6a and 6b , The over the edge-side head surface 43 projecting height of the hump 45 is about one-eighth of the diameter of the transition region 13. In the in Fig. 7c and 7d an example shown, an additional reinforcing rib 48 is provided, which spans the top surface 47 diametrically.

The embodiment of Fig. 8a and 8b has a top surface 51 in the form of a subsequent to the peripheral edge 52 convexly curved annular surface. From the central region of this annular surface rises, concentric to the axis 35, a hump 53 which forms a head surface 55, which is also convex, but with a greater curvature than the head surface 51, curved. The diameter of the cylindrical transition region 13 is approximately two and a half times the diameter of the protuberance 53. The height of the protuberance 53 relative to the surrounding head surface 51 is approximately 1/6 of the diameter of the protuberance 53.

The embodiment of Fig. 9a and 9b indicates how the embodiment of Fig. 6a and 6b , a peripheral surface 57 of the cylindrical transition region 13 surrounding head surface 59 with convex curvature, to which a trough-like depression connects and whose bottom forms a concavely curved head surface 61. The difference from the example of Fig. 6a and 6b consists only in that there is no bump in the center of the head surface 61. The width of the convexly curved head surface 39 at the edge 57 is in the example of Fig. 9a and 9b slightly larger than the width of the peripheral head surface 37 in the example of Fig. 6a and 6b , The width of the head surface 61 formed by the central trough or pocket is slightly more than half the diameter of the transition region 13. The axial depth of the trough 61 forming the trough is about 1/10 of the diameter of the transition region thirteenth

The embodiment of Fig. 10a and 10b is similar to the embodiment of Fig. 4a to 4c in that a bridge region 63 is provided which protrudes from a convexly curved head surface 65, which adjoins the edge 66 of the connection region 13. Unlike the oval bridge body 17 of Fig. 4a to 4c , The bridge portion 63 of the present example in outline has the shape of a recumbent eight with side walls 67 which drop relatively steeply from a front-side head surface 69 to the surrounding top surface 65. As Fig. 10a shows more clearly owns the head surface 69 has a convex curvature. The height of the bridge body 63 relative to the surrounding head surface 65 is about 1/4 of the diameter of the circular cylindrical transition region 13. The largest width of the bridge region 63 on the arms of the outline forming eight is slightly less than half the diameter of the transition region thirteenth

The Fig. 11 shows an embodiment which, similar to the head surface 11 in the embodiment of Fig. 3 , a convexly curved head surface 74, which adjoins the edge 70 of the transition region 13 over its entire circumference. Arranged on this head surface 74, there are two annular bodies 71 in the form of flat annular rings, which are arranged at a distance from one another along a line extending diametrically over the head surface 74. The outer diameter of these flat rings is about 1/6 of the diameter of the transition region 13, wherein the annular body 71 are arranged such that the distance between them is greater than the distance of each annular body 71 from the peripheral edge 70 of the transition region 13. At its top, the annular body 71 form each a top surface 73 in the form of a slightly convex circular surface. In addition, as in the embodiments of Fig. 3a . 3b the case is, diametrically extending over the head surface 74, a web-like reinforcing rib 15 may be provided, as in Fig. 11a is shown.

The embodiment of Fig. 12 is the embodiment of Fig. 9a and 9b similarly, thus has a trough 77 bounded by the edge-side, convexly curved head surface 75, which forms a concavely curved head surface 79. Placed on the bottom of the trough 77, extends a diametrically extending stiffening rib 81 in the form of a straight bar with axially parallel side walls and a slightly convex curved top, which adjoins the top side head surface 75 as another top surface 83.

The Fig. 13 shows an embodiment in which a convexly curved head surface 85 spans the transition region 13 between the peripheral edge 86 throughout. In a symmetrical arrangement of diametrically opposite chamfers 89 connect to circular arc-like connecting lines, each forming a further, slightly convex head surface 91. As the Fig. 13a can also be shown in the example of Fig. 13 an additional, web-like reinforcing rib 15 may be provided, which spans the top surface 85.

The embodiment of Fig. 14 is similar to the embodiment of Fig. 10a . 10b However, defined by the outline shape of the bridge body 63, lateral penetration surfaces 101 are formed. In this configuration, the penetration surfaces 101 have a maximum distance from each other. This is advantageous if both sites are used for piercing and the mandrel or the drip chamber in question remains therein. For a high deflection resistance is in the example of Fig. 14 In addition, a reinforcing rib 15 is provided. This can also have a rounded shape, as in Fig. 3b shown.

The Fig. 15a to 16b show by way of example also cover caps 93, wherein the in Fig. 15a . 15b shown construction for head pieces according to the examples of Fig. 5a to 5c and the construction of Fig. 16a to 16c for a header 7 according to the embodiment of, for example Fig. 11 is provided. The cover cap 93 of Fig. 15a to 15c is a hollow body of a plastic, for example, the same material from which the bottle is made. The cover cap 93 has a hollow-cylindrical main part 92 which engages over the transition region 13 of the head piece 7 and at the open end has a rim 95 which forms a radial enlargement and in which there is a circumferential annular groove 96. When attached to the head piece 7 by welding, encapsulation, gluing or sealing cover cap 93, the edge 95 may form a connection part for an adapter. The Fig. 15a shows a state before welding. As can be seen, is at the end edge of the main part 92, a tip 106 is formed, which forms an energy director for welding processes, such as ultrasonic welding. This tip 106 is welded off, so that after completed welding of the in Fig. 15c shown state results. At the top 94 sleeve body 97 are formed, which are aligned so that they are aligned with the bumps 29 on the head piece 7. In the initial state, which is shown in the figures, the sleeve bodies 97 are closed by a tear-off at predetermined breaking plate 98, to each of which a tab 99 is attached, which allows the convenient tearing of the plates 98 to access to the penisable head surface 31st the head piece 7 resting elastomer 103 release.

The example of Fig. 16a, 16b differs in contrast to the fact that instead of the protruding sleeve body 97 at the top 94 a dome-shaped hollow box 100 is provided in which two openings 102 are arranged such that they are flush with the region of the annular body 71, which is on the head surface 74 of the head piece. 7 are located. For use measures, therefore, the part of the head face 74 enclosed by the annular body 71 can be penetrated via the openings 102. As shown, an elastomer 103 is provided over the penetrating surface bounded by the annular bodies 71 to form a seal at the penetration surfaces.

The Fig. 17 shows in one of the Fig. 1 corresponding representation of an embodiment of the bottle 1, which has two opposite removal positions 3 and 5, wherein the bottom in the figure access is provided with an external thread 105 and at the upper removal position, a head piece 7 according to the embodiment of Fig. 1 located.

The Fig. 18 shows one of the Fig. 17 corresponding bottle 1 with a located at the lower removal position 5 head piece 7 according to the example of Fig. 5b ,

The Fig. 19 shows the bottle 1 of Fig. 18 , wherein the head piece 7 at the lower removal position 5 with a cap 93 according to the example of Fig. 15b is provided.

All the solutions according to the invention described above have in common that the container 1, which is produced by the blow molding, filling, and sealing method, with its particular, inventive head piece 7 is integrally formed, i. among other things, that the container wall passes continuously into the wall of the head piece 7.

Claims (7)

1. A container with a head piece (7), which container can be or is filled with a medium and is produced from plastic materials using a blow moulding, filling, and sealing method, comprising a transition region (13) between the container (1) and at least one first type of a head surface (11), which is arranged on the head piece (7) at a front end and can be penetrated by means of a piercing or cutting part and extends with a specifiable curvature, wherein at least one second type of a head surface (41, 75), which likewise has a specifiable curvature, which matches the curvature of the head surface (39, 79) of the first type, but is different therefrom, is present on the head piece (7), wherein the respective head surfaces transition into each other accompanied by the formation of an overall surface which spans the free end of the transition region (13) directed away from the container (1), and wherein the head piece (7) is an integral component of the container (1), wherein the head surfaces are formed rotationally symmetrical and extend concentric to a longitudinal axis (35) of the container (1), characterised in that with two types of head surfaces, the one head surface is convex and the other head surface is, relative thereto, concave.
2. The container according to claim 1, characterised in that the respective one type of a head surface transitions directly, or via a connecting region, into the respective other type of a head surface, accompanied by the formation of the overall surface.
3. The container according to one of the preceding claims, characterised in that at least one of the head surfaces has surface pieces which are arranged extending transverse to this longitudinal axis (35).
4. The container according to one of the preceding claims, characterised in that at least one of the head surfaces (79) has at least one bar-type stiffening rib (81).
5. A cap with an elastomer sealing element (103), which can be connected to a head piece (7) of a container (1) according to one of claims 1 to 5, characterised in that the elastomer sealing element (103) is located substantially only opposite the penetration surface of the head piece (7), is pressed on or connected or abuts with a small spacing.
6. The cap according to claim 5, characterised in that it has an energy guide (94), which makes possible a welding of the cap (93) and the container (1) by ultrasonic welding, friction welding or vibration welding.
7. The cap according to claim 5 or 6, characterised in that the elastomer sealing element (103) has an opening for a spike and is preferably formed cylindrical or annular.

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