EP0993819A2 - Bag for containing two separate substances that are to be mixed - Google Patents

Abstract

The bag (15) is pierced by a spike (13) acting upon an anvil part (14) that contains a second substance (51), separated by a film (16) from a first substance inside the bag. The spike is also used to pierce the film so that when it is used to pierce the bag the two substances are mixed together.

Description

The invention relates to a bag for holding a particular one in human or animal body to be introduced first substance according to the generic term of claim 1.

Such bags, which can be filled with a nutrient, for example, are known from DE 196 00 530. A special feature of the known bags is to be seen in the fact that a first substance is sealed by a shell enclosed on all sides against the outside world. In the application case is by means of a Pierce attached piercing device pierce at least one envelope, so that the Substance can be emptied or empties itself due to gravity. Across from previously used glass ampoules, the bags have the advantage that when emptied no ambient air is sucked in and the substance can be emptied germ-free.

At the same time, there is a disadvantage with the known bag systems in that they must be packed in special devices and therefore between packing the Substance and the specific application often takes a considerable amount of time lies. Not all substances are suitable for such bag systems. There are substances in a homogeneous milk or solution system either only for a very short time are durable or would disintegrate very quickly, or with the other substances could enter into chemical interactions.

The object of the present invention is to provide a bag that is essential is more universally applicable and in particular adding, i.e. loosening, Suspending or mixing substances allowed immediately before use.

This object is achieved with a bag according to the features of claim 1. Advantageous refinements are specified in the subclaims.

A key idea of the present invention is to be seen in the fact that one on the piercing device provided abutment designed to receive a second substance is the opposite of the interior of the bag or the first substance a release film has been cut off. The separating film can also be used with the piercing device perforate between the first and second substance so that when the piercing device is actuated a mixing process between the first and the second substance is in progress is set.

The second substance can in particular be in liquid, solid, powdery, gaseous or gel form Condition. It should be noted that the first and second In principle, substance can also be the same, so that replenishment via the abutment by connecting a filling system or additional bags in the actual ones for emptying provided bag can be supplied. Will over the abutment connected second bag and lie first and second substance in the liquid state with comparable viscosity, this results in the specifically examined bag Surprisingly, a mixing ratio between the first and second substance in the Ratio 50 to 50. Via the abutment, the first substance can be tapped into Bag second substances are supplied, which only have a short shelf life in the first substance are or decay relatively quickly in the first substance. Examples of such Second substances are living microbiological cultures or sensitive substances like glutamine or enzymes.

An essential core idea of the invention is that between the first and second Detect substance retracted release film, which is simultaneously with piercing the Bag is perforated.

In an expedient embodiment, the separating film is through the envelope of the bag self-formed, so that the manufacture and attachment of a separate release film are not required can.

In one possible embodiment, the abutment is only towards the inside of the bag open towards, but covered with the release film and otherwise closed on all sides. In this embodiment, the second substance can be produced and Composition of the bag or when attaching the piercing device to the sleeve of the bag. This alternative embodiment is for second substances suitable, which is also durable by itself without contact with the first substance are, before using the bag a mixture between the first and second Substance is desired.

The abutment is preferably for receiving a film with a perforable film provided active ingredient single pack. A pot-shaped abutment in particular can, for example, the receiving space for one enclosed with a film Form the tablet. If the perforable film is pierced, the one in the bag can be pierced first substance come into contact with the tablet, so that by mixing the first substance and the second substance (here the tablet) a desired effect is caused, or the second substance is extracted.

Especially when the first substance is in fluid form, the piercing device can be provided with means to prevent the fluid substance from flowing into the abutment favor. This can be achieved in particular in that the piercing device has a mandrel with cutting ribs, the cutting ribs the fluid into the abutment initiate.

As an alternative to the configuration of the abutment which is only open towards the interior of the bag the abutment can also have a further opening, preferably at its End of bag facing. This opening can be covered by a protective cover or a protective film can be closed. When removing the protective cover or perforations the protective film can then be a second or additional bag or a substance cartridge can be connected or the fluid can be drained off. This configuration offers numerous other possible uses for the bag.

The first step is to connect additional bags or bag systems or refill devices To be received. Here, for example, individually according to the application the first substance to be emptied is diluted in the bag. As before Explained above surprisingly results in the configuration examined very constant mixing ratio of 50 to 50. This could be done both via density measurements as well as reproducibly checked using chloride ion determinations. For this purpose, 500 ml of the first substance in a bag with a further 500 ml of diluent mixed as a second substance in the bag space.

Especially when administering food from the bag can be connected another bag put together a complete diet with different substances are, these substances either at the same time, staggered or successively can be administered without between the first bag and the patient Changes in the feeders must be made.

In a particularly preferred embodiment, a substance cartridge on the abutment be connected. Again, food can be administered be thought, with special substances, additives, medicine in the substance cartridges or similar can be included. With a bag according to the proposed design it becomes possible to use a first substance as a basic substance depending on the specific The patient needs a suitable substance cartridge prescribed by the doctor to add. With regard to possible configurations for the substance cartridge, which can be connected to the bag largely aseptically, will continue to the specific embodiments described below.

It is useful for a largely germ-free connection if the for the protective cartridge provided opening of the abutment is covered with a protective film, wherein this protective film is cut when the substance cartridge is inserted.

In a specific embodiment, the substance cartridge is either on the abutment can be pushed on or pushed into the abutment, with a seal between Substance cartridge and abutment by at least one peripheral projection between Substance cartridge and abutment is guaranteed. The volume of the substance cartridge can be adapted to the volume of the abutment. To enlarge the The filling volume of the substance cartridge can, however, be extended to the outside his. In a concrete embodiment, this extension is in the maximum form a second bag that can be connected directly.

If both the substance cartridge and the abutment have a circumferential projection have, so they can with a corresponding design when pushing in or pushing in the substance cartridge first pass so that this already provides mechanical locking. The all-round protrusions or the protective cartridge and the abutment itself are each designed to be elastic, that despite this locking option, an adequate seal between Substance cartridge and abutment is guaranteed.

In an alternative embodiment, the abutment on the side facing away from the bag Side also be formed on a drain connection. It can then go through the abutment substance can be added or removed directly from the bag. This idea will regardless of the idea of adding a second substance or mixing claimed a first and a second substance.

In a further special embodiment, the piercing device also has, in particular the actuating piston of the piercing device has a connection for connection a connection or drain line. To this end, is between Actuating piston and mandrel provided a fluid passage so that substance over the Mandrel can be inserted into the bag or removed from the bag. This thought too becomes independent of the introduction of a second substance and independent of claimed the formation of a drain port on the abutment. If both Connections are provided on the actuating piston as well as on the abutment a bag in a simple way an inlet and outlet are provided.

Fig. 1a bis 1d

eine erste Ausführungsform eines erfindungsgemäßen Beutels mit im Widerlager befindlicher zweiter Substanz, wobei die Anstechvorrichtung in der Ausgangsposition (Fig. 1a), unmittelbar vor Perforation der Hülle (Fig. 1b), nach Perforation von Hülle und Trennfolie (Fig. 1c) und nach Betätigen der Anstechvorrichtung und einsetzendem Mischvorgang zwischen erster und zweiter Substanz (Fig. 1d) gezeigt ist,

Fig. 2a

eine Ausführungsform einer Platine mit Anstechvorrichtung in aufgeklapptem Zustand in Draufsicht,

Fig. 2b

die Platine mit Anstechvorrichtung aus Fig. 2a entlang der Linie II b, II b,

Fig. 3a

eine Teilschnittansicht der Anstechvorrichtung,

Fig. 3b

die Anstechvorrichtung entlang der Linie III b, III b in Fig. 3a,

Fig. 3c

eine Schnittansicht der Anstechvorrichtung entlang der Linie III c, III c in Fig. 1b,

Fig. 3d

den Entleerungsanschluß entlang der Linie III d, III d in Fig. 2a,

Fig. 4a

eine Ausführungsform einer auf das Widerlager aufsetzbaren Substanzpatrone vor dem Aufsetzen;

Fig. 4b

die auf das Widerlager aufgeschobene Substanzpatrone aus Fig. 4a;

Fig. 5a

eine Ausführungsform einer in das Widerlager einschiebbaren Substanzpatrone vor dem Einschieben,

Fig. 5b

die in das Widerlager eingeschobene Substanzpatrone,

Fig. 5c

den Beutel nach Fig. 5a mit eingeschobener Substanzpatrone bei Betätigen der Anstechvorrichtung vor Perforation der Hülle,

Fig. 5d

der Beutel nach Fig. 5a bei Betätigen der Anstechvorrichtung nach Perforation der Hülle sowie, nach Perforation der Trennfolie zwischen erster und zweiter Substanz,

Fig. 5e

der Beutel nach Fig. 5a mit Anstechvorrichtung und in das Widerlager eingeschobener Substanzpatrone nach Vermischung von erster und zweiter Substanz,

Fig. 6

eine Ausführungsform für ein Zwischenstück, das zwischen einer Entleerungsleitung und dem Widerlager einsetzbar ist mit einer zweiten Substanz,

Fig. 7

eine Ausführungsform, bei der eine Mehrzahl von Zusatzbeuteln an das Widerlager eines ersten Beutels angekoppelt ist,

Fig. 8a

eine alternative Ausführungsform einer Platine mit Anstechvorrichtung in einer Schnittansicht,

Fig. 8b

die Platine mit Anstechvorrichtung aus Fig. 8a in Draufsicht,

Fig. 8c

eine Teilschnittansicht einer Anstechvorrichtung zur Verwendung auf einer Platine nach Fig. 8a und Fig. 8b

The invention is also explained in more detail below with regard to further features and advantages based on the description of exemplary embodiments and with reference to the accompanying drawings. Here show:

1a to 1d

a first embodiment of a bag according to the invention with the second substance in the abutment, the piercing device in the starting position (FIG. 1a), immediately before perforation of the casing (FIG. 1b), after perforation of the casing and separating film (FIG. 1c) and after actuation the piercing device and the beginning of the mixing process between the first and second substance (FIG. 1d) is shown,

Fig. 2a

an embodiment of a board with piercing device in the opened state in plan view,

Fig. 2b

2a along the line II b, II b,

Fig. 3a

a partial sectional view of the piercing device,

Fig. 3b

the piercing device along the line III b, III b in Fig. 3a,

Fig. 3c

2 shows a sectional view of the piercing device along the line III c, III c in FIG. 1 b,

Fig. 3d

the drain port along the line III d, III d in Fig. 2a,

Fig. 4a

an embodiment of a substance cartridge that can be placed on the abutment prior to placement;

Fig. 4b

the substance cartridge pushed onto the abutment from FIG. 4a;

Fig. 5a

one embodiment of a substance cartridge which can be pushed into the abutment before being pushed in,

Fig. 5b

the substance cartridge inserted into the abutment,

Fig. 5c

5a with the substance cartridge inserted when the piercing device is actuated before perforation of the casing,

Fig. 5d

5a when the piercing device is actuated after the casing has been perforated and, after the separating film has been perforated, between the first and second substance,

Fig. 5e

5a with a piercing device and substance cartridge inserted into the abutment after mixing the first and second substances,

Fig. 6

an embodiment for an intermediate piece which can be used between a drain line and the abutment with a second substance,

Fig. 7

an embodiment in which a plurality of additional bags are coupled to the abutment of a first bag,

Fig. 8a

an alternative embodiment of a circuit board with piercing device in a sectional view,

Fig. 8b

8a the top view of the circuit board with piercing device,

Fig. 8c

a partial sectional view of a piercing device for use on a circuit board according to Fig. 8a and Fig. 8b

1a to 1d is a first embodiment of the bag with one in the abutment located second substance 51 shown. 1a to 1d show the piercing device in different positions to illustrate how they work. In this specific embodiment, a piercing device 12 is on the outer Sleeve 11 of a bag 15 is welded on. In the bag 15 shown here is a further inner shell 27 which is enclosed on all sides and in which a first substance 50 is germ-free is packed.

The piercing device 12 comprises a circuit board 30 on which a front plate 31 and a rear plate 32 are formed. Between the front plate 31 and the rear Plate 32 forms the circuit board 30 a film hinge 39. The front plate 31 of the Circuit board 30 is on a first side of sleeve 11 and rear plate 32 on an opposite side Side of the sleeve 11 of the bag 15 welded. Through the foil hinge 39, front plate 31 and rear plate 32 of the board can be pressed together approach the assigned bag corner or bag edge.

A mandrel 13 of the piercing device 12 is essentially in the area of the front plate 31 vertical to the plane of the front plate 31 in a cylindrical guide 28 slidably mounted. An actuating piston 29 is located on the end of the mandrel 13 Actuation of the mandrel 13. Actuating pistons 29 and mandrel 13 are opposite the cylindrical one Guide 28 is sealed so that both the leakage of substance the bag 15 and the entry of germs into the bag 15 is prevented.

In the area of the rear plate 32 of the circuit board 30, an abutment 14 is formed, into which the mandrel 13 can be immersed when the piercing device 12 is actuated. At the same time in the abutment 14 according to the invention housed the second substance 51, the opposite the interior of the bag 15 is sealed off with a separating film 16.

When the piercing device 12 is actuated, the front plate 31 and the rear plate are first Plate 32 of the board 30, for example, in that actuating piston 29 and abutment 14 between the thumb and forefinger are pressed together.

As can be seen from Fig. 1b, the abutment 14 is thereby directly opposite placed the mandrel 13. Will now 29 on the abutment 14 and actuating piston Exerted pressure, the mandrel 13 passes through the front side of the sleeve 11, twice through the inner envelope 27 and again through the envelope 11 and perforates this. Alternatively, in the outer shell 11 on the front and / or Corresponding recesses can also already be provided on the back, so that a perforation the outer shell 11 is not required. After perforating the shell (s) of the Bag 15, the mandrel 13 also cuts a separating film 16 according to the invention, which Abutment 14 is covered and a second substance 51 is sealed off from the inside of bag 15. After this perforation (Fig. 1d), the second substance 51 can with the im Mix bags of packaged first substance 50. In the illustrated embodiment The first substance 50 also does not arrive until the inner shell 27 is perforated in the area between inner hell 27 and outer shell 11 of the bag 15.

If a fluid substance is used as the first substance 50, the result is at Another advantage of the specifically illustrated double bag. With appropriate suspension of the bag 15, the fluid first substance 50 flows out through the inner Shell 27 delimited inner bag in the area between inner shell 27 and outer Cover 11 out. This outflow occurs in part over the area of the mandrel 13 Piercing device. The mandrel 13 has crossed, substantially parallel cutting ribs 17 extending to the piercing direction. The cutting ribs 17 guide the fluid first substance 50 in the area of the abutment 14, so that one located there second substance 51 is literally rinsed out after perforation of the release film 16 and mixes surprisingly homogeneously with the first substance 50. Just when the second substance 51 is in powder form or in the form of a tablet, is the one described above "Rinse out" extremely helpful.

The piercing device 12 is described below with reference to FIGS. 2a and 2b explained in more detail. 2a, the circuit board 30 is shown in the opened state. On the rear plate 32 is the abutment formed in one piece with the board 30 14 arranged. On the opposite side is at the appropriate place on the front plate 31, the cylindrical guide 28 also integrally with the board 30 (/ U educated. The cylindrical guide 28 has two guide ribs 33, which with corresponding Grooves 34 in the actuating piston 29 correspond.

Furthermore, a drain connection 35 is formed on the front plate 31, which has an outer support 37 and concentrically with an inner support 36. The inner socket 36 is a pipe socket for discharging the first packaged in the bag and second substance 50, 51 are provided. The outer socket 37 has an internal thread 38 on, so that a drain line 46 is preferably via a Luer connection can be connected. Between the front plate 31 and rear plate 32 is on the Board 30 formed the previously mentioned film hinge 39, which is a much smaller Thickness than the front and rear plate 31, 32 has. Front plate 31 and rear plate 32 are further enclosed by film edges 52, 53. Over the foil edges 52, 53, the board 30 can be welded to the outer casing 11 of the bag 15.

In Fig. 2b the piercing device II b, II b is shown in Fig. 2a. Essentially the different strengths between front plate 31 and rear plate 32 on the one hand and the film hinge 39 on the other. It should be pointed out continue to ensure that the guide ribs 33 do not extend over the entire length of the cylindrical Guide 28 extend so that the actuating piston 29 in its initial and rest position relative to the cylindrical. Guide 28 can twist. Only if the grooves 34 provided in the actuating piston correspond to the guide ribs 33, the actuating piston 29 and thus the mandrel 13 can be pressed in, so that inadvertent perforation of the bag is made difficult. It should also be pointed out that a latching between the cylindrical guide 28 and the actuating piston 29 is effective in such a way that the actuating piston 29 against falling from the cylindrical Guide 28 is secured.

In Fig. 3a is the specific arrangement between the cylindrical guide 28 and the Actuating piston 29 and the mandrel 13 shown in a sectional view. The actuating piston 29 has a central, central recess 54 which extends into the cylindrical one Guide 28 dips and slides along the inside of the cylindrical guide 28. Between the recess 54 of the actuating piston 29 and the cylindrical guide 28 A circumferential seal is effective to prevent substance from escaping from the bag 15 or the entry of germs or contaminants in the bag 15 prevented.

The mandrel 13 is arranged inside the actuating piston 29, below the recess 54, which has two cutting ribs 17 which run crosswise to one another.

3b is a sectional view of the cylindrical guide 28 and the actuating piston 29 along the line III b, III b in Fig. 3a. In the position shown the guide ribs 33 of the cylindrical guide 28 correspond to the grooves 54 of the actuating piston 29 so that the mandrel 13 is displaced in the piercing device can be.

In Fig. 3c is a sectional view of the slidably mounted in the cylindrical guide 28 Dorns 13 shown. By the provided on the cylindrical guide 28 Guide ribs 33 can be the orientation of the actuating piston 29 and thus the Fix domes 13 with its cutting ribs 17 so that for the perforation of the casing (s) and the separating film 16 and always reproducible for the inflow of the first substance 50 Conditions are created.

In Fig. 3d is the drain port 35 of Fig. 2a in a sectional view along the Line III d, III d shown. That which is arranged in the outer connecting piece 37 can be clearly seen Internal thread 38. The inner socket 36 is longer than the outer socket 37 formed and protrudes on the end facing away from the front plate 31.

4a and 4b is an embodiment of a mountable on the abutment 14 Substance cartridge 20 shown. In this embodiment, the abutment 14 at its end facing away from your bag 15 an opening 21. The opening 21 is lockable with a protective cover. The protective cover could for example be designed as a removable cover, but preferably a protective film 23 is provided, which closes the opening 21 aseptically.

The substance cartridge 20 according to this embodiment comprises an inner chamber 61, in which the second substance 51 is enclosed. The substance cartridge 20 becomes outside delimited by a hat-shaped cap 58, inside which the chamber 61 is arranged is. The chamber 61 is delimited by a wall 59, part of the inside of the hat-shaped cap 58 and a protective film 18. The protective film 18 closes the second Substance 51 and protects against contamination and germs. When putting on the Protective cartridge 20 on the abutment 14, this protective film 18 is also cut.

For perforating the protective film 18 of the substance cartridge 20 and the protective film 23 of the Abutment 14 is a mandrel 41 a within the chamber 61 of the substance cartridge 20 centrally arranged, the tip of which is slightly at rest from the protective film 18 the substance cartridge 20 is spaced. As soon as the substance cartridge 20 on the abutment 14 is placed, the protective film 18 is slightly inwards and finally pressed on the mandrel 41 a, so that the protective film 18 is cut. At the same time the now exposed mandrel 41a acts on the protective film 23 of the abutment 14 and also cuts them so that the chamber already inserted into the abutment 14 61 allows a germ-free transition of the second substance 51 into the abutment 14.

The chamber 61 has a corresponding one to the inner cross section of the abutment 14 Outside cross-section, which is dimensioned slightly smaller, so that the Can insert chamber 61 into the abutment 14. Chamber 61 and abutment 14 can a substantially circular cross-section, an oval, rectangular or have a cross-section of another shape.

The inside cross section of the hat-shaped cap 58 can also be on the outside cross section of the abutment can be adapted in a corresponding manner.

Seals are preferably between the inner wall of the abutment 14 and the Chamber 61 provided. The seals are advantageously arranged so that they happen when they are pushed open and the chamber 61 or the substance cartridge 20 is ensured on the abutment 14. Alternatively, you can Seals also between the outside of the abutment 14 and the inside of the hat-shaped cap 58 may be provided, with the appropriate training of Seals also lock the substance cartridge 20 on the abutment at the same time 14 can be reached.

5a to 5e is a third alternative embodiment of a substance cartridge 20 shown for coupling to the abutment 14. It is different from that in FIGS. 4a and 4b here the substance cartridge 20 is designed for insertion into the abutment 14.

As can be seen from Fig. 5a, the abutment 14 is open at both ends and thereby towards the inside of the bag with a separating film 16 and on the bag 15 opposite end covered with a protective film 23.

The substance cartridge 20 has a corresponding to the inner cross section of the abutment 14 External cross section on. The substance cartridge 20 can have a circular, have an oval, rectangular cross section or cross section of another shape. The Substance cartridge 20 itself is on its front side in the insertion direction a protective film 18 covered.

As can be seen from FIG. 5b, the protective film becomes when the sub-cartridge 20 is inserted 23 of the abutment 14 perforated. In this embodiment too, the substance cartridge has 20 and the abutment 14 on the surfaces facing each other circumferential seals on the leakage of the substance of the bag 15 or Prevent substance cartridge 20 or the entry of germs into the abutment 14. The Seals are also advantageously designed so that they are Pass in and thus latch the substance cartridge 20 in the abutment 14 is guaranteed.

5c, 5d and 5e explain the actuation of the piercing device 12 when inserted Substance cartridge 20. The mandrel 13 of the piercing device 12 can this embodiment, in addition to the perforation of the sleeves 11 and 27, the release film Cut through 16 on the abutment 14 and the protective film 18 of the substance cartridge. so that the second substance 51 located in the substance cartridge 20 into the interior of the Bag 15 arrive and mix there with the first substance 50.

In Fig. 6, an intermediate piece 40 is shown in a schematic diagram. The intermediate piece 40 can be connected to the abutment 14 for emptying or filling the bag 15 become. For this purpose, the intermediate piece 40 has at its for connection to the abutment 14 provided end an adapter 55, which is similar to that in FIGS. 4a and 4b shown substance cartridge 20 can be pushed onto the abutment 14. The Before use, adapter 55 is covered at the end with a protective film 18. Within the Adapter 55 and covered by the protective film 18, there is a mandrel 41b which when pressing the adapter 55 onto the abutment 14, both the protective film 18 of the Adapters and the protective film 23 of the abutment 14 is severed.

At its opposite end, a further connection can be made on the intermediate piece 40 22 may be provided, which corresponds here to the drain connection shown in FIG. 3d 35 is formed. Between the adapter 55 as one end of the intermediate piece and a connection at the other end runs a connecting line 47, which can be designed as a straight connecting line with a uniform cross section. In the present case, an extension 42 is provided in the connecting line 47, in which a predetermined amount of second substance 51 is accommodated. With Such an intermediate piece provided with a second substance 51 can be used for the bag 15 can be emptied via the abutment 14 and thereby directly by means of the second substance 51 the first substance 50 of the bag 15 can be rinsed out in the flow.

7 shows an embodiment in which a plurality of additional bags 43, 44, 45 are connected in series to the abutment 14 of the bag 15. For example Via the intermediate piece 40 explained with reference to FIG. 6, in which the for receiving the second substance 51 provided extension 52 need not be provided, lets an additional bag 43 with its drain port 35 on the abutment 14 of the Connect bag 15. As a result, virtually any number of bags 15 can be attached to one another couple so that, for example, a drain line leading to the patient 46 can be left firmly between the patient and the bag 15. The extra bags 43, 44, 45 can be provided as a "refill" for the bag 15. It is also possible to dilute the first substance 50 in an additional bag 43 Bag 15 effect.

Furthermore, by connecting one or more additional assessments 43, 44, 45 compile a complete diet for a patient, the additional bags 43, 44, 45 can be emptied simultaneously, at different times or in succession. In the Fig. 7 arrangement is purely schematic and is intended to be connected in series illustrate a plurality of bags, the majority of the bags being horizontal, vertical to one another or can be arranged in any other position.

8a and 8b is an alternative embodiment of a circuit board with piercing device 12 shown. In the embodiment shown in Figures 8a and 8b the drain port 35 directly on the side facing away from the board 30 to the abutment 14 molded. This allows the bag 15 substance over the abutment supplied or removed from the bag 15.

8b shows the circuit board 30 according to this modified embodiment in plan view shown. The circuit board according to this embodiment can be smaller than in the embodiment 2a, since the drain port 35 is not separate must be arranged, but is integrally formed on the abutment 14.

If the drain port 35 is actually for draining and not for principle possible filling of the bag 15 is also used in this embodiment the emptying level at the level of the piercing device 13, so that under Complete emptying is not possible under certain circumstances. However, the board 30 can Piercing device 12, abutment 14 and drain port 35 much easier be formed.

8c shows a partial sectional view of the piercing device 13, which is opposite the embodiment shown in Fig. 3a is modified. Different from that Actuating piston 29 of the embodiment according to FIG. 3a is here between the actuating piston 29 and the mandrel 13 a fluid passage 56 formed so that after piercing the bag 15 by means of the mandrel 13 substance from the bag 15 into the interior of the Actuate the actuating piston 29 or inside the actuating piston 29 in the bag 15 can. A connecting line 47, 48, 49 or an emptying line 46 to be able to connect, there is an internal thread in the recess 54 of the actuating piston 29 60 incorporated. The recess 54 defines together with the internal thread 69 in this embodiment, a connection 57 for connecting additional bags 43, 44, 45 via connecting lines 47, 48, 49 or for connecting an emptying line 46.

For example, the additional bags 43, 44, 45 shown in FIG. 7 with a circuit board 30 and piercing device 12 according to FIGS. 8a, 8b and 8c. The bag 15 with outer shell 11 and inner shell 27, on the other hand, is provided with a circuit board 30 according to FIG. 2a and 2b equipped. The idea of the abutment 14 with an emptying connection 35 and / or the provision of a fluid passage 56 in the actuating piston 29 is claimed independently of the introduction of a second substance as essential to the invention.

The bag system shown in FIG. 7 is characterized by a high-quality bag 15, which allows a visual control option if a transparent cover 11 is provided, and from additional bags 43, 44, 45. Allow the additional bags 43, 44, 45 numerous other possible applications (mixing, staggered, completely timed spaced delivery of substance, etc.) and are also much easier constructed, both with regard to the bags 43, 44, 45 and the circuit board 30.

Reference list

11

Outer shell

12th

Piercing device

13

Mandrel (piercing device)

14

Abutment

15

bag

16

Release film

17th

Cutting ribs

18th

Protective film (substance cartridge)

20th

Substance cartridge

21

opening

22

Connection

23

Protective film (abutment)

27

Cover

28

cylindrical guide

29

Actuating piston

30th

circuit board

31

front plate

32

rear plate

33

Guide ribs

34

Groove

35

Drain connection

36

Nozzle (inner)

37

Nozzle (outer)

38

inner thread

39

Foil hinge

40

Spacer

41a

Dorn (substance cartridge)

41b

Mandrel (spacer)

42

extension

43, 44, 45

Additional bag

46

Drain line

47, 48, 49

Connecting lines

50

First substance

51

Second substance

52, 53

Foil edges

54

Recess

55

adapter

56

Fluid passage

57

Connection (actuating piston)

58

hat-shaped cap

59

wall

60

inner thread

61

chamber

Claims (10)

Bag for receiving a first substance to be introduced in particular into the human or animal body with at least one sleeve (11) enclosed on all sides and a piercing device (12) attached to the sleeve (11), the piercing device (12) having a displaceably mounted mandrel (13) for piercing the at least one sleeve (11) and having an abutment (14) into which the mandrel (13) is immersed when piercing the sleeve (11),
characterized by that the abutment (14) is designed to receive a second substance which is separated from the interior of the bag (15) or the first substance by a separating film (16), the separating film (16) between the first and second substance can also be perforated with the piercing device (12), such that a mixing process between the first and the second substance is started when the piercing device (12) is actuated. Bag according to claim 1,
characterized by
that the separating film (16) is formed by the envelope (11) of the bag (15). Bag according to claim 1 or 2,
characterized by that the abutment (14) is only open to the inside of the bag (15), but is covered with the separating film (16) and is otherwise closed on all sides, wherein the second substance is received in the abutment (14) and can escape to the interior of the bag (15) when the piercing device (12) is actuated. Bag according to one of claims 1 to 3,
characterized by
that the abutment (14) is designed to receive a single pack of active substance provided with a perforable film. Bag according to one of claims 1 to 4,
characterized by
that the mandrel (13) has cutting ribs (17) for severing the casing (11) and / or the separating film (16), the cutting ribs (17) preferably being designed such that they allow a fluid to flow into the abutment as the first substance (14) favor. Bag according to one of the preceding claims,
characterized by
that the abutment (14) has at its end facing away from the bag (15) an opening (21) which can be closed by a protective cover, with a second or additional bag at the opening (21) as an additional bag (43, 44, 45) or a substance cartridge (20) can be connected. Bag according to one of claims 1 to 5,
characterized by
that the abutment (14) has at its end facing away from the bag (15) a protective film (23) which can be perforated for introducing a substance cartridge (20) which contains a predetermined second substance. Bag according to claim 7,
characterized by that the substance cartridge (20) can be pushed onto the abutment (14) or pushed into the abutment (14), sealing being effected by a circumferential projection on the substance cartridge (20) and / or on the abutment (14). Bags according to the preamble of claim 1 or one of claims 1 to 8,
characterized by
that an emptying connection (35) is formed on the abutment (14). Bag according to one of the preceding claims,
characterized by
that the piercing device (12) comprises an actuating piston (29) for actuating the mandrel (13),
wherein the actuating piston (29) comprises a fluid passage (56) and a connection (57) for a connecting line (47, 48, 49) or an emptying line (46).

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