FI67482C - FOERBINDNINGSPORT VID AV PLASTFOLIEN TILLVERKAD FOERPACKNING - Google Patents

Description

67482

Connecting port for plastic film packaging Förbindingsport vid av plastfolie tillverkad förpackning

The invention relates to a connecting port for a package made of plastic film, which is placed in a tubular member associated with the package and which comprises a cover film, a tear strip attached thereto and a liquid lock placed below them.

Finnish patent publication 64780 discloses a connecting port attached to a wall film of a package and comprising a piece of cover film acting as a protective part of a liquid lock, on the upper surface of which a tear strip is attached, the edge of which tears off the tear film along the edge of the attachment point.

It is an object of the present invention to apply a splicing port structure such as that mentioned above to a tubular member associated with a package, e.g. a filling tube of a package or a separate connecting tube. In this case, for example, the filling tube after filling the bag can be used in a simple manner to form a connecting port. Accordingly, the main object of the invention is to reduce the number of splice ports required by simplifying the splice port structures to be formed in the tubular member associated with the package. The package in which the connecting port according to the invention is used is particularly intended for use in the medical field, e.g. for the storage of blood or organic tissues, for the storage and use of pharmaceutical preparations, in particular infusion solutions or the like. Through the connection port, drugs can be mixed into the contents of the package, e.g. in connection with the use of infusion solutions, and possibly the emptying tube can be connected to the bag. In this case, several functions can be combined in the same tubular member.

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The connecting port according to the invention is mainly characterized in that the connecting port comprises at least one protective film placed between the liquid lock and the contents of the package and fixed to the end and / or inner and / or outer surface of the connecting tube.

With a protective film of a material approved for continuous contact with the infusion solutions, it is then possible to isolate the liquid lock of the connecting port from the contents of the package if the contents of the package enter the tubular member during storage.

According to a preferred embodiment, the protective film is connected to the cover film by a joint surrounding the liquid lock, and further according to an embodiment the protective film is connected to the end face of the tubular member together with the cover film, below the cover film so that the protective film is located between the liquid lock and the tubular member.

The main advantage of these solutions is that the connection between the membranes and the connecting port and the end of the tubular member is very simple to implement using, for example, high-cycle sealing, ultrasonic sealing, hot sealing or gluing.

According to one embodiment, the end surface of the tubular member is expanded by forming a flange projecting radially from the outer surface of the tube at the joint.

The main advantage of this embodiment is that the connection point between the cover film and the end surface is made relatively wide, even if the diameter of the tubular member is smaller, as is the case in most practical cases. In addition, when high cycle sealing is used, the second electrode can be placed on the opposite side of the flange to the connection point, whereby the sealing can take place between two electrodes placed opposite each other.

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Other embodiments disclose preferred embodiments of the connection port according to the invention.

The invention is further illustrated in the following with reference to the exemplary embodiments shown in the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a perspective view of an embodiment of a package made of plastic film to which a connecting port according to the invention is attached, Figures 2-10 show, in longitudinal sections A-A of Figure 1, various embodiments of a connecting port according to the invention.

Figure 1 shows an embodiment of a package to which a connecting port according to the invention is attached. The package is formed from a tubular blank - but also a package surrounded by two separate films is possible - the package comprising a front wall 1 and a back wall 2. The tubular blank 1, 2 is closed at its ends by transverse seams or the like 3, 4 to close the packaging space. Liquid-tight tubular members 5 and 6 are arranged between the seams, one of which (tubular member 6) is connected to a connection port according to the invention, generally indicated by reference numeral 7 · In the embodiment according to Figure 1, the tubular member 6 can be used as a package filling tube. e.g. the infusion solution 11a, after which the connecting port 7 is connected to the end of the tubular member 6. In most cases, the tubular member is most preferably connected at the joint between the wall membranes 1 and 2 of the package (sealing 3 and 4 in Figure 1). In this case, the hole 8 of the tubular member must be open so that the electrode used in the sealing can be placed inside the tubular member 6 at the sealing point 1e to provide a seal between the walls 1 and 2 and the tube 6. Only one possible embodiment for connecting a tubular member to a package has been shown above 4 67482. In fact, the connection and the connection of the walls of the package are not within the scope of the present invention, but these can be realized in several different ways, of course by providing a sterile connection to the contents of the package, e.g. with an injection needle, through the connection port 7 and the tubular member 6.

Figures 2-10 show some embodiments of a connecting port according to the invention, comprising a cover film piece 9 acting as a protective part of the connecting port, a cover with a liquid lock 10 placed below the cover 9, such as a rubber part and a cover tear strip 11 attached to the cover film. or conical with a diameter of e.g. about 10 mm and a thickness of about 3 mm.

Thanks to the flexibility of the rubber, the hole made by the cannula closes if the tip of the cannula is pulled out of the connection port. The tear strip 11 may be circular in shape, with its center portion 12 and cover film 9 sealed or joined together over the fluid lock so that the tear strip film and cover film are attached so tightly that when pulled from the edge 13 of the tear strip 13 the cover film tears In this case, the sterile upper surface of the liquid lock 10 is exposed and a cannula or the like can be inserted through the rubber piece 10 into the hole of the tubular member 6 without risk of contamination and through it into contact with the inside of the package.

Figure 2 shows an embodiment of a connecting port according to the invention, in which the cover film 9 is connected to the outer end surface 16 of the tubular member 6 by an annular joint 15 surrounding the liquid lock. The diameter of the liquid lock 10 in this embodiment is larger than the diameter of the tubular member 6 at the connection point. Thus, the liquid lock 10 remains in the space delimited by the cover film piece 9 and the end surface 16 of the tubular member 6. The tubular member 6 is spaced from the end face by a barrier film 17 which prevents contact between the contents of the package and the liquid lock. In use, the cannula pierces said membrane.

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Figure 3 shows an embodiment of a connecting port according to the invention, in which the cover film 9 is indirectly (via the base film 19) connected to the end surface 16 'of the tubular member 20. The end surface 16 'is expanded by forming a flange 18 projecting radially from the outer surface of the tube 16 at the end.

Between the cover film piece 9 and the end surface 16 ', a protective film 19 »is connected to the connection 15', which is located between the end surface 16 'of the tubular member 20 and the liquid lock 10 at the hole 21 of the tubular member 20.

Figure 4 shows an embodiment of a connecting port according to the invention, in which the liquid lock 10 is placed in a recess 24 formed at the end of the tubular member 22 at the hole 23 of the tubular member 22. The protective film 19 'is in the recess 24 between the liquid lock 10 and the tubular member 22. Associated with the upper edge of the recess 24 is a flange 18 'extending the end surface of the tubular member. The protective film 19 'is connected at least to the end surface 25 of the tubular member by a connection 15 ". Reference numeral 15" also denotes the connection between the cover film 9 and the protective film 19'. The protective film 19 can further be connected to the wall 26 and the base 27 of the recess 24. · The dimensions of the liquid lock 10 and the recess 24 can be chosen so that the cover film piece 9 is flat and mainly in the plane of the flange 18 '. In the figure (as in other figures), for the sake of clarity, the film thicknesses are drawn stronger than reality. The diameter of the recess 24 can be selected so that the fluid lock 10 presses into the recess using a moderate compressive force while partially pressing against the bottom 27 of the recess 24 and thus not reaching the hole 23 of the tubular member 22 because the diameter of the fluid lock 10 is substantially larger than the hole 23 diameter.

Fig. 5 shows an embodiment corresponding to Fig. 4, in which the connection 15 "is formed at the outer end 25 'of the tubular member 22'. The embodiment of Fig. 5 otherwise corresponds to the embodiment of Fig. 4 but does not have a flange extending the end surface of the tube. To provide a recess 24 ' 22 'the wall thickness is increased (left) or the end of the tubular member is enlarged (right).

to provide both the recess 24 'and the annular connecting surface 25' associated with the upper edge of the recess.

67482

Figure 6 shows an embodiment of a connecting port according to the invention in which the liquid lock 10 'is conical, in particular in the shape of a truncated cone. A conical recess 29 corresponding to the shape of a liquid lock is formed in the tubular member 28 · The liquid lock 10 'engages the recess 29 with a wedge effect, thereby preventing it from entering the hole 30 of the tubular member 28 associated with the narrower end of the recess 29. Also in this embodiment there is a protective film 19 "connected at least to the end surface 32 of the tubular member 28 associated with the wider edge of the conical recess 29 and to the flange 31 extending thereto. The recess 29 has a protective film 19" between the fluid lock 10 'and the recess 29. The cover film 9 is in turn connected to the flange 31 on the base film connection point. The connection between the flange 31, the protective film 19 "and the cover film 9 is marked with reference number 15" ·

Also in the embodiment according to Fig. 6, the protective film 19 "can also be connected to the inner surface of the recess, similar to the embodiments shown in Figs. 4 and 5.

Fig. 7 shows a further developed embodiment of the connecting port according to Fig. 4, in which the cover film 9 'is connected to the protective film by an annular connection 33 surrounding the liquid lock so that the cover film 9' can be removed by acting on the cover film flange 34. In this case, the tubular member 22 can be used as a drug supply tube (by removing the tear strip 11) and / or as a package emptying tube (by removing the cover film 9 'and the liquid lock 10).

Fig. 8 shows a further developed embodiment of the embodiment according to Fig. 2, in which the cover film 9 'is provided with a tear flange 35 as in the embodiment according to Fig. 7 and the cover film 9' is releasably connected to the end face 16 of the tube 6 by an annular connection 36 surrounding the liquid lock.

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In particular, the embodiments according to Figures 7 and 8 have the advantage that the filling of the package, the addition of the drug and the emptying of the package can be effected through the same tubular member 22, the package filling, e.g. in fusion solutions, being performed before the connection port is connected to the end face the tear strip 11 with the liquid lock attached under the cover film 9 'and by removing the cover film 9' can also remove the liquid lock 10 from the end of the tubular member, whereby through the protective film 19 'the voids can be brought into contact with the contents of the package.

Figure 9 shows an embodiment of a connecting port according to the invention, in which the protective film 119 and the cover film 9 "are connected to each other by an annular connection 115 surrounding the liquid lock, whereby the films enclose the liquid lock 10". The connecting port is attached to the inner wall 38 of the hole 37 of the tubular member at the end of the tubular member using an adhesive 50 which secures the film 119 to the wall 38.

Figure 10 shows an embodiment of a connecting port according to the invention, in which the cover film 39, the liquid lock 40 and the protective film 41 form a layer structure in which, for example, a planar rubber layer 40 or the like is connected between the two films 30 and 41. The protective film 41 is in turn connected to the end surface 43 of the tubular member 42 by an annular connection 44 · A tear strip 45 is in turn connected to the upper surface of the cover film 39, e.g. by an annular connection 46. The tear strip comprises a flange 47 which is removed from the cover film 39. The ring connection 46, which may advantageously be a so-called peelable seal, encloses a sterile site 48 on the surface of the film 39.

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As previously mentioned, the connection between the cover film and the end surface can be, for example, high-cycle sealing, ultrasonic sealing, heat sealing or possibly gluing. For example, when using the tubular member in the embodiments of Figures 3-7, 9-10 as a package filling tube, the connecting port being connected to the end surface after filling the package, it is preferable to form a cover piece, liquid lock and protective film integral with the tubular member. It is furthermore advantageous to use a hard plastic grade as the material of the tubular member, e.g. a hard PVC plastic, whereby the penetration of the needle through the wall of the tubular member is prevented.

Claims (14)

A connector port in a plastic film package, which connector port is located in a tube-like member (6, 20, 22, 22 ', 28, 42) of the package and which member has a cover (9, 9', 9 ", 39). 49), a tear strip (11, 45) connected thereto and a liquid lock (10, 10 ', 10 ", 40) located therein, characterized in that the connecting port comprises at least one protective film (17, 19, 19', 19", 119 »41, 49), son is placed between the liquid reader (10, 10 ', 10", 40) and the contents of the package and the protective film are attached to the end tube and / or inner and / or outer surface of the connecting tube. 2. Connection port according to claim 1, characterized in that the protective film (19, 19 ', 19 ", 119) is fixed to the cover (9) with a west-facing & set surrounding connection (15, 15', 15", 115). Connection port according to claims 1 and 2, characterized in that the protective film (19, 19 ', 19 ") is secured in the end surface (16) of the tube-like member (6, 20, 22, 22', 28, 42). , 16 ', 25, 25', 32) together with the cover (9) and underneath that the protective film (19, 19 ', 19 ") is between the liquid lock (10, 10') and the tube-like member. 67482 4. Connection port according to claim 1, characterized in that the protective film (19 ', 19 ", 119) and the liquid lock (10, 10') are located in a recess (24, 24 ', 29) arranged in the end of the tube-like member and / or in the heel of the tubular body (37). 5. Connection port according to claims 3 and 4, characterized in that the diameter of the fluid & sets (10, 10 ') is greater than the diameter of the h & l (8, 20) of the tube-like member (6, 20, 22, 22', 28). , 23, 23 ', 30) at the junction. 6. Connection port according to claims 1 and 4, characterized by the protective membrane (19 ', 19 ", 119) is secured to the recess wall (26) and / or to the bottom (27) and / or to the heel of the tubular member ( 37) with bonding. Connection port according to Claim 4, characterized in that the fluid set (10 ') and the recess (29) are in the front of the package to be tapered cones. 8. Connection port according to claim 3, characterized in that the end surface of the pipe-like member is extended by forming in the pipe-like member a flange (18, 18 ', 31) which protrudes radially from its outer surface. Connection port according to claim 1, characterized in that the protective membrane (17) is located at a distance from the connection point in the heel-like member (6, 20, 22, 22 ', 28) (8, 21, 23, 23', 30). ). Connection port according to claims 1-3 and 9, characterized in that the connection between the cover film (9, 9 ') and / or between the protective film (19, 19 *, 19 ") and the pipe-like means, which connection is located around the liquid ice consists of high frequency sealing, ultrasonic sealing, heat sealing or bonding (15, 15 ·, 15 ”, 115).