FI93335C - packaging Containers - Google Patents

Description

93335

The packaging container. - Förpackningsbehällare.

The invention relates to an unloading device for packaging containers and, more particularly, to a docking-type unloading device. It is often necessary to connect the packaging container to a hose with an opening, for example. In the context of medical treatment, bags made of flexible material containing enormous amounts of different types of nutrient solutions are used, which require a more rational way of handling.

In addition, high purity is required in the case of parenteral nutrient solutions, e.g. infusion solutions, etc.

The prior art in the field of flexible bag unloading devices comprises bags with certain openings welded to the bag before being filled and closed, said openings having tear-off closures or needles or other piercing tools for piercing the closure film.

Previous unloading or joining devices meet reasonable hygienic and aseptic standards, but structures known in terms of fabrication incur higher costs due to an irrational manufacturing process that requires, for example, separate welding of apertures.

Previously, bags of the type in question have been made in a conventional manner, i.e. the bags have been made individually from planar blanks.

The use of "hose technology" for the production of bags containing aseptic material is disclosed, for example, in Swedish Patent No. 455,044. However, this technology uses a separate connector for connection to the inside of the bag.

2,93335

The object of the present invention is to provide a packaging container with an unloading or docking device forming a fixed structural part, which is formed, for example, directly in connection with a hose manufacturing process, and enables aseptic docking or installation in an unloading line. The docking device according to the invention can advantageously be used in applications where the package containing the product is formed from a filled hose, but of course the invention can also be applied in other fields.

A packaging container according to the invention having a channel formed of flexible material for connecting the interior of the container to an unloading device, e.g. an opening hose, in which the channel terminates in a gripping strip to open the channel and said marking is associated with a circumferential attenuation transverse to the channel, characterized in that the marking is inclined with respect to a plane transverse to the channel such that the circumferential marking defines a protruding portion of the opening channel which may act as an inlet surface of the discharge device.

In another embodiment of the invention, a packaging container with a channel for connecting the interior of the container to a discharge device, e.g. an open hose, in which the channel terminates in two opposite gripping strips for opening the channel, the weld and the channel terminates in the weakened transverse weld portion so that free gripping strips are arranged outside said weld portion.

3,93335

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

Figure 1 shows a certain type of flexible bag with a tear arrangement according to the invention.

Fig. 2 shows a partial view of a channel according to the first embodiment with an adhesive strip.

Figure 3 shows the channel of Figure 2 exposed after removal of the adhesive strip.

Figure 4 shows another embodiment of a channel with an adhesive strip.

Figure 5 shows another embodiment of the channel and the adhesive strip.

Figure 6 shows the channel of Figure 5 open.

Figure 7 shows a version of a channel with a gripping part.

Figure 8 shows the channel of Figure 7 opened and exposed.

The bag 10 in Figure 1 is a two-sided or alternatively three-sided welded bag. In the former case, there are two cross-welds 11, 12 formed by folding a single planar blank of flexible plastic or laminate material into the shape shown in Figure 1 or by flattening the hose along the area of the cross-welds 11, 12. In the latter case, the welds 11, 12 are preferably made in a product-filled hose, said product being extruded from the welds in a manner known per se before the welds are made.

4,93335

At the same time as the welds are made, welds are also made to form a channel 13 in the corner portion in Fig. 1 in an oblique, filled bag 10. In addition, the weld is made diagonally to the opposite corner to form a hanging hole 23.

Fig. 2 is a partial view of a channel 13 'according to a first embodiment, defined by two parallel welds 14, 15 and terminating in a gripping strip 16. Two markings 17, 17' for starting tearing off the tear strip are arranged in welds 14, 15. the case may be made of two plastic nets, a laminate or a web, terminating in the unopened state along a curved line 18 in Figure 2. Outside this line, the adhesive strip is welded as shown in the shaded areas. In Fig. 2, the upper web forming the channel 13 'has a first curved weakening 19, and in Fig. 2 the lower web has a second curved weakening 20, shown in broken lines. As shown in Fig. 2 and as further shown in Fig. 3, the channel roll or inlet portion 21 is provided after tearing the gripping strip along the depressions 19, 20. The portion 21 exposes a portion of the channel interior immediately after tearing and allows the opening of the unloading device to fit quickly. Aseptic substances are disturbed only briefly and the contents of the package are not disturbed at all during the entry or connection operation.

Figure 4 shows how more than one entry surface is obtained. Here, too, the channel 13 '' terminates in the gripper 16 *. The welds 14 ', 15' have the initial markings 17 * ', 17' '' and the upper film web has an S-shaped weakening 19 ', and in a manner similar to Figure 2 there is a weakening 20', in this case S-shaped in the lower film web.

5,93335

In Figure 5, the gripper has two free strips 16 ''. The channel 13 '' 'is defined by two parallel welds 14' ', 15' 'and terminates in a weakened transverse weld 22. This weld 22 can be formed by a so-called for peeling welds using a known technique. The resulting inlet surface for aseptic connection is indicated in Figure 6 by reference numeral 21 '' '.

Figures 7, 8 show a channel 13 '' '' defined by two parallel welds 14 '' '', 15 '' ''. The two films that form the channel in Figures 7, 8 are welded together, as shown in Figure 7, with the channel having a curved cross-section unlike previous "planar" cross-sections. The gripping part 16 '' 'in Fig. 7 is removed by means of tear markings and weakenings, resulting in the shape according to Fig. 8. The entrance surface is marked with reference number 2i ""

Although only a few embodiments of the invention have been described, it will be apparent that variations and modifications are possible within the scope of the inventive idea. As a conventional example, the channels 13 to 13 '' can be made tapered in cross section towards the inside of the packaging container. Instead of using a flexible bag 10 with an integral channel, it is possible to form separate channel units for installation in different containers. However, the integral manufacturing method according to the appended embodiments is preferred.

Claims (2)

1. Packaging container with a channel of flexible material for joining the interior of the container with a dispensing device, e.g. a hose with an orifice, the channel (13 ', 13' ') closing in a gripping flap (16, 16') to open the channel so that a portion (21) of the channel's interior is exposed when the channel is opened, and a marking (17, 17 ', 17' ') for primary tearing of the gripping flap (16, 16') has been arranged at the edge of the channel and to said marking a ring attenuation (19, 20; 19 ', 20') is across the channel, characterized in that the marking is inclined in relation to a tab transversely perpendicular to the channel so that the circumferential marking defines a projecting portion from the opening channel which can act as an input surface for the dispensing device. 2. Packaging container with a channel for joining the interior of the container with a dispensing device, e.g. a hose with an orifice, the channel (13 '') terminating in two opposite grip flap pairs (16'1) to open the channel, characterized in that the channel (13 '' ') and the gripping means (161'1) made in a uniform part and that the channel (13 '' ') is defined by two welding points (14' ', 15'1) and ends in a weakened cross-weld part (22) so that the free gripping flaps (16' ') are arranged outside said welding section.