EP3362367A1

EP3362367A1 - Filling device for filling a medical bag, method for producing a filling device of this type, and system for producing medical bags filled with fluid

Info

Publication number: EP3362367A1
Application number: EP16757544.8A
Authority: EP
Inventors: Martin Klein
Original assignee: Kiefel GmbH
Current assignee: Kiefel GmbH
Priority date: 2015-10-15
Filing date: 2016-07-07
Publication date: 2018-08-22
Also published as: DE102016005596A1; DE112016004699A5; WO2017063623A1; US20180235837A1; CN108137179A

Abstract

The aim of the invention is to further develop filling devices for filling a medical bag, in particular with respect to a solid main body or solid filling block. To achieve this aim, the invention proposes a filling device for filling a medical bag with fluids, the device comprising a main body with fluid channels and valve seats, on which valve devices can be arranged in order to adjust volumetric flow rates of fluid flowing through the fluid channels, the main body being at least partially produced by an additive manufacturing process.

Description

FILLING DEVICE FOR FILLING A MEDICAL BAG, METHOD FOR PRODUCING SUCH A FILLING DEVICE, AND APPARATUS FOR PRODUCING MEDICAL BAGS FILLED WITH FLUID

The invention relates to a filling device for filling a medical bag with fluids, comprising a base body with fluid channels and valve seats to which valve devices can be arranged in order to adjust fluid volume flows flowing through the fluid channels.

The invention relates to a method for producing a filling device for filling a medical bag, in which a base body of the filling device is provided with fluid channels for conducting fluids to be handled with respect to the medical bag and with valve seats for adjusting fluid flow rates.

The invention further relates to a system for producing fluid-filled medical bags with a device for producing the medical bags, with a device for filling the manufactured medical bags and with a device for closing the filled medical bags.

In particular generic filling devices are known from the prior art. These generic filling devices generally comprise a main body to which one or more filling needles, which can be inserted into an access port of the medical bag, record. Furthermore, the base body is penetrated by fluid channels, by means of which in particular the fluids to be introduced into the medical bag are conducted from an incoming supply line to the respective filling needle. A release or closing of these fluid channels is usually via diaphragm valves, which on the Main body of the filling device are attached. In this respect, the main body has one or more valve seats, on which the diaphragm valves are arranged such that the respective corresponding fluid channel can be closed or released or opened with them. The valve seat or the diaphragm valve in this case sits either somewhere on the path of the respective fluid channel, or in the immediate vicinity of the filling to the medical bag or in the immediate vicinity seen in the flow direction in front of the filling needle. In general, the latter variant is preferable, since significantly less dead space between the diaphragm valve or valve seat and the filling point or the filling needle is present, whereby the filling of the medical bag can be better controlled. In this respect, both the valve seats and the filling needle, required fluid media connections for connecting the incoming supply line and just the corresponding fluid channels between these components are integrated on the main body. A filling device constructed in this way, in which a basic body equipped in this way is preferably fed cyclically to or removed from a port of a medical bag to be filled, has proven itself in practice.

However, in the context of optimized processes or systems for producing, filling and providing filled medical bags, ever higher cycle rates are expected, so that the cycle times of the filling device must be correspondingly improved or optimized.

In addition, increasing demands on the filled bag also require higher demands on the filling device or, in particular, on its basic body, since the medical bags often additionally have to be evacuated in different sequences and / or filled with gas. This means in its entirety that for such gas filling or evacuation additional fluid lines, and diaphragm valves or valve seats must be integrated into the body, whereby the body but always larger and thus heavy builds.

Larger dimensions and especially higher weights have a negative effect on the achievable clock rates or cycle times.

The invention is therefore based on the object of further developing generic filling devices such that the clock rates are optimized with regard to the filling device, so that at least the filling device is as far as possible no decisive limiting factor in a system for the production of medical bags, even if the main body with additional fluid channels and valve seats or the like.

According to a first aspect, the object of the invention is achieved by a filling device for filling a medical bag with fluids comprising a base body with fluid channels and valve seats, to which valve devices can be arranged in order to adjust fluid volume flows flowing through the fluid channels, wherein the filling device is characterized in that that the base body is at least partially produced by means of an additive manufacturing process.

Currently, such bases are made by conventional subtractive manufacturing techniques, such as milling, turning or eroding. With increasing complexity of the body, however, it is becoming increasingly difficult to economically produce a generic body. In addition, it is particularly difficult to introduce a plurality of fluid channels in a confined space in the body, with the result that such bodies build ever larger. As a result, however, more masses must be accelerated, which in turn has a negative effect on achievable cycle times with respect to the filling device for filling medical bags. In contrast to conventional subtractive manufacturing methods, the basic body can be made particularly compact by means of additive manufacturing processes, even if a large number of additional fluid channels, for example for gas filling or evacuation of the medical bag, are present on the base body.

In contrast to conventional subtractive production methods, such as milling, drilling, turning, erosion or the like, such additive manufacturing methods are characterized in particular by the fact that materials for producing a component can be added essentially in layers, for example. In the present case, production processes which are based on joining methods such as welding, soldering or the like, for example in order to fasten a connection flange for fluid supply lines or the like to the base body, can preferably be completely dispensed with by means of such additive manufacturing methods. In the present case, almost any additive manufacturing process can be used, as will be described later by way of example.

In any case, the main body of the filling device for filling a medical bag by means of such an additive manufacturing process can be built much more compact and thus weight-reduced, whereby this body is significantly cheaper to accelerate. In turn, this can be achieved with the present filling device and higher cycle times on a suitably equipped plant for producing and filling generic medical bag.

The term "basic body" in the present case describes a massively configured filling block element which is movable relative to a medical bag and at least partially embodies the fluid channels and the valve seats. The term "cycle times" in the context of the invention describes processes in which the main body of the filling is introduced for the purpose of filling or evacuating a medical bag to this medical bag, then then performed on the medical bag filling and / or evacuation operations are, and after completion of such filling or evacuation operations of the main body is removed again from the thus treated medical bag, so that in particular the Befüllblock at the filling a further medical bag can be supplied.

According to a further aspect, the object of the invention is also achieved by a filling device for filling a medical bag with fluids comprising a base body with fluid channels and valve seats, to which valve devices can be arranged to adjust fluid volume flows flowing through the fluid channels, whereby the filling device is characterized characterized in that running within the body fluid channels are at least partially arcuate.

The fact that the relevant fluid channels are designed arcuate, they can be passed significantly closer running within the body together, so that due to the body can be made more compact overall, which in turn advantageously allows a reduction in weight, so in terms of the filling less masses must be accelerated. As a result, shorter cycle times are also achieved with regard to the filling device.

For example, parallel or skewed mutually extending or intersecting fluid channels less than 10 mm, preferably less than 5 mm, spaced from each other on the base body.

It is particularly advantageous that the corresponding arcuately designed fluid channels are formed edge-free in contrast to the prior art can, so that such curves curved with curved or curved fluid channels of fluids much streamlined and thus less turbulence can flow through, resulting in shorter filling times. This also makes it possible to optimize the cycle times in the sense of the invention. So far, corresponding fluid channels were introduced through holes in the body, with two holes must penetrate in order to design a corresponding curve on a fluid channel can.

However, if two boreholes or boreholes on the main body overlap each other in such a way that the fluid duct is not merely straight, an edge formation occurs, at which turbulences result in a fluid volume flow flowing through the fluid duct, thereby worsening the filling times. However, this is excluded in the present case.

In general, with the proposed solutions with regard to the fluid volume flows, unfavorable tearing edges within the fluid channels can be avoided.

In addition, both solutions enable additional fluid channels to be accommodated compactly in the base body, whereby further functions of the filling device, such as a bag control, etc., can be made structurally very simple by means of the base body produced in the present case. With the present basic body all essential functions can be realized with regard to a filling device in a Befüllblockelement, such as filling, blowing for generating a headspace, vacuum drawing or the like with respect to the medical bag.

In this respect, a preferred embodiment provides that at least one of the fluid channels is designed to be continuously curved. By a continuously curved fluid channel edge formation within the fluid channel can be prevented. In this respect, the fluid passages provided on the main body are in this case preferably also entirely free of edges or free from flow stalling.

In general, this also enables a reliable complete emptying of the fluid channels, for example after a cleaning, so that the risk of contamination by dirt particles or the like of, in particular, fluids to be introduced into the medical bag can be further significantly reduced.

Furthermore, it is advantageous if at least one of the fluid channels, based on its overall length, is designed to be more than 50%, preferably more than 80%, curved.

While only angular fluid channels can be produced with conventional subtractive manufacturing methods in order to form a curve on the fluid channel, it is advantageous in the present case if the curve is configured with a larger radius. Thus, it is possible that the fluid channels can be made significantly more streamlined, whereby the above-mentioned advantages can be achieved.

A fluid channel provided on the main body can be made more aerodynamic if the length of a curved section of one of the fluid channels is more than 50%, preferably more than 100%, of the length of a straight section of this fluid channel.

If at least one of the fluid channels has a variable cross section along its longitudinal extension, further advantageous flow effects with regard to the fluids at the device II can be achieved. By means of such a variable inner diameter, for example, different flow velocities can be achieved within a fluid channel provided on the main body.

Preferably, the variable cross section widens continuously or continuously.

For example, the variable cross section relates to the total length of the respective fluid channel.

Or, however, the variable cross section relates only to a partial section of the fluid channel, wherein the partial section is for example more than 30% or more than 50%, preferably more than 80%, of the total length of the fluid channel concerned.

For example, at least one of the fluid channels is conically configured in sections, whereby approximately different pressures or flow velocities can be achieved within a fluid channel, without actuation of a valve device associated with this fluid channel.

In addition, a weight reduction on the base body can also be achieved if at least one of the fluid channels protrudes beyond a side wall of the base body.

In this case, a fluid channel section projecting beyond the side wall of the base body is then no longer surrounded by the complete base body, so that alone a considerable reduction in weight can already be achieved thereby.

In addition, a further reduction in weight can be achieved at the filling device, in particular with regard to the main body, if intermediate spaces present between fluid channels are at least partially free of material or component-free.

Such material-free or component-free spaces between individual fluid channels can be achieved in many different ways. It is especially easy however, to generate such gaps in the context of an additive manufacturing process.

In any case, with regard to the base body, an almost arbitrary routing of the fluid channels can be achieved if the fluid channels are at least partially produced by means of an additive manufacturing method. Also valve seats for corresponding valve devices can be made particularly simple and therefore cost-effective on the base body, if the valve seats are at least partially produced by means of an additive manufacturing process.

Moreover, if fastening devices for fastening valve devices to the base body are at least partially produced by means of an additive manufacturing method, the production of the base body or of the present filling device can be further simplified.

It is also expedient if fluid accesses and / or fluid outlets are generated at least partially by means of an additive manufacturing process. The term "fluid access" describes in the context of the invention, for example, a connection to the base body, by means of which fluid supply lines or the like of the filling device can be connected to the main body.

The term "fluid outlets" in the context of the invention in contrast to this connection possibilities, by means of which, for example, filling needles or the like of the filling device can be attached to the body.

More favorable flow conditions can be created on the base body, if the fluid facing surfaces of the fluid channels, the valve seats, the fluid access and / or the fluid outlets are at least partially generated by means of an additive manufacturing process. Specifically, in order to produce constructively simple over the side wall of the body protruding fluid channels, it is advantageous if the fluid channels are partially configured by pipe segments which project beyond side walls of the body, said pipe segments and the body are at least partially produced jointly by an additive manufacturing process. The main body of the present filling device can be made even more complex if the main body has connection devices for connecting fluid supply lines or filling elements for interacting with the medical bag, these connecting devices and the basic body being at least partially produced together by means of an additive manufacturing process.

The basic body of the present filling device can be made even more compact if a plurality of connection devices are arranged next to one another on a common support beam element, wherein this common support beam element and the base body are at least partially produced jointly by means of an additive manufacturing process. If a plurality of connection devices are arranged on the common support beam element, these connection devices can moreover be provided in a very stable and combined manner on the base body.

The common support beam element may in this case be structurally connected to the main body even by pipe segments projecting beyond the side walls of the main body.

Conveniently, the common support beam element is arranged by means of an additional holder part on the base body, said additional holder part, the support beam element and the base body are generated at least partially together by means of an additive manufacturing process. Due to the additional holder part, the support beam element can also be arranged and held reliably on the base body, independently of the strength of the tube segments.

In this case, other combinations of generatively produced areas of the body are possible.

As already mentioned at the beginning, it goes without saying that different additive manufacturing methods can be used in the sense of the invention.

In the present case, it has been found that the base body can be produced particularly advantageously if the additive manufacturing method comprises a 3D printing method, a 3D laser sintering method or the like.

In particular, laser melting methods (SLM method) are also suitable for use in the context of the invention.

Accordingly, a preferred embodiment also provides that the basic body is made of informal or shape-neutral materials. In the present case, the term "main body" particularly includes fluid channels, valve seats, fluid accesses, fluid outlets, fastening devices for fastening valve devices, tube segments projecting over side walls and / or connection devices or the like mentioned above.

Formless materials are for the purposes of the invention, for example, liquids, powders or the like, wherein form-neutral materials are band, wire or the like executed.

With regard to the abovementioned 3D printing method, it is possible to differentiate, as regards the method, between powder bed processes, free space processes and liquid material processes. The powder bed processes include, for example, selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (SHS), binder jetting (solidification of powder material by means of binder) and electron beam melting (EBM).

Free space methods include fused depositing modeling (FDM), laminated object modeling (LOM), cladding, wax deposition modeling (WDM), contour crafting, cold injection molding, and electron beam welding EBW).

The liquid material methods include, for example, stereolithography (SLA) and micro SLA, digital light processing (DLP) and liquid composite molding (LCM). In this respect, the object of the invention is also achieved by a method for producing a Befullvorrichtung for filling a medical bag, in which a body of the Befullvorrichtung with fluid channels for guiding against the medical bag to be handled fluids and valve seats for adjusting fluid flow rates is provided the method is characterized in that the main body is generated at least partially generative.

The main body of the present Befullvorrichtung can be particularly simple, so both constructively and procedurally simple, with very high quality fluid channels produced when the body is at least generated around the fluid channels around successively. A further variant of the method provides that the main body, the fluid channels, the valve seats and / or fluid inlets and outlets arranged on the main body are produced by means of a single manufacturing process, so that the production of the basic body of the present single-type filling device is significantly further simplified. If the base body is at least partially made from a data set for operating a single production plant, the production of the filling device can be further simplified considerably.

Preferably, only a single data record is needed to generate the basic body, in which any information for generating the fluid channels, the valve seats, etc. are contained on the main body.

Furthermore, the object of the invention is achieved by a system for producing fluid-filled medical bags with a device for producing the medical bags, with a device for filling the manufactured medical bags and with a device for closing the filled medical bags the system is characterized in particular by a filling device according to one of the features described here.

By means of the present invention, virtually any design and routing can be made possible with regard to the fluid channels within or on the base body. In this respect, there are significantly fewer restrictions of complexity which are still present in the previously used subtractive production methods.

Moreover, it is advantageous that all required valve devices can be arranged in a small space directly on the base body.

Furthermore, most streamlined design options of the present fluid channels or the like are easily possible.

It is particularly advantageous that the fluid channels can be formed as short as possible in particular by their curved or arcuate configuration. Additive manufacturing processes already require very high surface qualities, which is very advantageous especially on surfaces interacting with fluids.

With corresponding reworking even higher surface finishes can be achieved.

The cyclically docking or undocking of filling elements, in particular filling needles, can take place particularly quickly by means of the presently configured filling device, particularly with regard to the advantageously designed base body, since considerably lower masses have to be moved with respect to the present base body, as a result of which cycle times are significant can be reduced.

Further features, effects and advantages of the present invention will be explained with reference to the appended drawing and the following description in which an example of a filling device is shown and described, in particular with regard to its basic body produced or produced by an additive manufacturing process.

In the drawing show:

FIG. 1 is a schematic perspective view of the filling device;

Figure 2 schematically shows a perspective view of the base body;

3 shows schematically a plan view of that shown in FIGS. 1 and 2

The body; and

Figure 4 schematically shows a partially sectioned side view of the in Figures 1 to

3 shown basic body.

As shown in FIG. 1, a filling device 1 for filling a medical bag (not shown here) is at least partially in particular with respect to their relative to this medical bag cyclically displaceable body 2 shown at a plant 3 for producing filled with medical fluid pouches.

The main body 2 of the filling device 1, in the context of the invention, constitutes a solid filling block 4, which can be displaced linearly relative to this medical bag or a corresponding bag holding device (not shown) for docking of filling elements 5 to the medical bag to be filled. The filling elements 5 are designed in this embodiment as Befüllnadelelemente 6.

The main body 2 or the massive Befüllblock 4 has a plurality of fluid channels

10 (only exemplified, see in particular Figures 3 and 4) and valve seats

11 (numbered only by way of example), on which valve devices 12 (numbered only as an example) are arranged.

These valve devices 12 are in this embodiment as diaphragm valves 13 (only exemplified), wherein on the present base 2 a total of five such valve devices 12 and diaphragm valves 13 are arranged, as well as in the illustration of Figure 1 is clearly visible. In this respect, fastening devices (not explicitly shown here) for fastening the valve devices 12 are provided on the base body 2, wherein such fastening devices may be of different nature.

For example, such fastening devices comprise threaded bores into which screws of the valve devices 12 can be screwed in order to fasten the valve devices 12 to the base body 2. Furthermore, such fastening devices can have centering means by means of which the valve devices 12 can be defined, for example against rotation, on the base body 2.

In any case, the base body 2 is produced by means of an additive manufacturing process, wherein this base body 2 is produced by means of a 3D laser sintering method, wherein in particular the fluid channels 10 are arranged very compact side by side within the base body 2 and generally on the base body 2.

Through this dense together! In the case of the fluid channels 10, the base body 2 is constructed to be particularly compact, so that smaller masses have to be moved with respect to the docking and undocking on the medical bag, which in turn can decisively shorten cycle times.

As a result, it is possible to produce much more effectively fluid-filled medical bags on the system 3, since the working cycle between the device for producing the medical bag, the device for closing the filled medical bag, etc., is ideally not limited by the filling device 1.

In addition, the fluid channels 10 can be much easier into the base body 2 are introduced, since this otherwise required subtractive manufacturing process such as drilling, can be completely eliminated. As a result, the fluid channels 10 can also be flow-optimized, since they are generated free of edges by means of the additive manufacturing process in the region of curves 15 (only explicitly numbered), as are clearly recognizable, for example, as shown in FIG.

It is particularly advantageous that the fluid channels 10 extending in particular within the basic body 2 are designed in an arcuate manner, that is to say curved, whereby fluids which are to be passed through the fluid channels 10 can flow again in a more optimized way through the fluid channels 10.

Only z. B. this is well illustrated with respect to the Fluidkanalkurvenabschnitts 16, since the fluid channel 10 is configured continuously curved in this Fluidkanalkurvenabschnitt 16. This is all the more true if at least one of the fluid channels 10 (not explicitly shown here) more than 50% or better even more than 80% curved, in particular continuously curved, is designed based on its overall length, as this realized fluid channels 10 bent with large radii can be, whereby the thus configured fluid passages passing fluids can be routed particularly low turbulence up to the filling elements 5 zoom.

Preferably, the fluid channels 10 arcuately over its entire length, that is curved, configured, whereby the individual fluid channels can be realized even with complicated geometries close or very close to each other on the base body 2, whereby this naturally very compact and therefore with a lower mass can be provided.

By way of example, the length of a curved section 18 is more than 100% of the length of a straight section 19 of this fluid channel 10, as illustrated by way of example only with reference to FIG.

In addition, the base body 2 comprises at least one fluid channel 10 which has a variable cross section 21 along its longitudinal extension 20 (see, for example, FIG. 4).

In other words, this means that fluid channels 10 on the base body 2 has a variable inside diameter. For example, this is a continuously variable cross-section 21, wherein the respective fluid channel in the form of a funnel - in the main flow direction of the respective fluid - continuously widens.

In the present case, it does not matter if the fluid channels 10 are arranged entirely within the base body 2 or alternatively at least partially outside the base body 2. Depending on the variant embodiment, it is also possible if at least one of the fluid channels 1 0 is arranged to extend completely outside the main body 2.

Preferably, however, the fluid channels 10 are arranged both partially within the main body 2 and partially outside the main body 2, wherein in particular here the respective fluid channel 10 projects beyond one of the side walls 25 (numbered only by way of example) of the main body 2.

For the sake of completeness, it should be explained here that the term "sidewalls" generally encompasses any outer boundary (not separately numbered here) of the main body 2, ie also describes the front, back, upper and lower sides as well as other sides of the main body 2. Furthermore, with regard to a weight reduction of the main body 2, it is such that intermediate spaces 26 existing between individual fluid channels 10 (only explicitly numbered) are material-free, so that masses to be accelerated are significantly reduced again with regard to the main body 2.

The basic body 2 shown in FIGS. 1 to 4 is entirely produced with regard to its fluid channels 10 by means of an additive manufacturing process.

Also, all valve seats 1 1 are produced on the base body 2 by means of the additive manufacturing process. Even the not shown fastening means of the valve means 12 are produced by means of the additive manufacturing process. In addition, at least in this exemplary embodiment, the base body 2 comprises a total of five fluid accesses 27 (only explicitly numbered) and a total of two fluid outlets 28, which are likewise all produced by means of the additive manufacturing process.

The fluid access 27 and the fluid outlets 28 in this case generally embody connection devices 29 of the main body 2.

Of these, at least four of these fluid accesses 27 are configured as upper connection devices 29A, which are arranged next to one another on a common support beam element 30.

The support beam member 30 is additionally attached for reasons of stability by means of an additional holder part 31 on the base body 2. In this respect, this results in a very solid and compact connection unit.

In this case, the connection devices 29 serve to connect fluid supply lines, wherein the connection devices 29A or fluid accesses 27 for gaseous fluids arranged on the common support beam element 30 are provided, and the connection device 29B arranged below the support beam element 30 is provided for a liquid fluid.

Also, the fluid access 27 and the fluid outlets 28 and all related terminal devices 29 are generated by the additive manufacturing process.

Thus, also preferably all surfaces facing the fluids 35 (numbered here only as an example with respect to the valve seats 11) are likewise produced by means of the additive manufacturing method. At least in this embodiment, the base body 2 is completely produced by the additive manufacturing process, whereby it is both constructive and procedural particularly effective and thus also produced inexpensively. It should be explicitly pointed out at this point that the features of the solutions described above or in the claims and / or figures can optionally also be combined in order to be able to implement or achieve the explained features, effects and advantages in a cumulative manner.

It goes without saying that the exemplary embodiment explained above is merely a first embodiment of the filling device 1 according to the invention or, in particular, its basic body 2. In this respect, the embodiment of the invention is not limited to this embodiment.

All disclosed in the application documents features are claimed as essential to the invention, provided that they are new individually or in combination over the prior art.

List of reference numbers used

1 filling device

2 main body

3 plant

4 solid Beiullblock or Befullblockelement

5 fastening elements

6 filling needle elements

10 fluid channels

1 1 valve seats

12 valve devices

13 diaphragm valves

14 continuously curved bow

1 5 curve

16 fluid channel curve section

18 curved section

19 straight section

20 longitudinal extension

21 cross section

24 pipe segments

25 side walls

26 spaces

27 fluid inputs

28 fluid outlets

29 connection devices

29A upper connection devices

29B lower connection devices

29C additional connection devices

30 common stringer element additional holding part the fluid facing surfaces

Claims

A filling device (1) for filling a medical bag with fluids, comprising a main body (2) with fluid channels (10) and valve seats (11) to which valve devices (12) can be arranged to adjust fluid volume flows passing through the fluid channels (10) characterized in that the base body (2) is at least partially produced by means of an additive manufacturing process.

A filling device (1) for filling a medical bag with fluids, comprising a main body (2) with fluid channels (10) and valve seats (11) to which valve devices (12) can be arranged to adjust fluid volume flows passing through the fluid channels (10) characterized in that within the base body (2) extending fluid channels (10) are at least partially arcuate (14) configured.

Filling device (1) according to claim 1 or 2, characterized in that at least one of the fluid channels (10) is configured continuously curved.

Filling device (1) according to one of claims 1 to 3, characterized in that at least one of the fluid channels (10) based on its total length more than 50%, preferably more than 80%, is curved.

Filling device (1) according to one of claims 1 to 4, characterized in that the length of a curved portion (18) of the fluid channels (10) more than 50%, preferably more than 100%, of the length of a straight gate (19) of this Fluid channel (10).

6. Filling device (1) according to one of claims 1 to 5, characterized in that at least one of the fluid channels (10) along its longitudinal extent (20) has a variable cross-section (21). 7. Filling device (1) according to one of claims 1 to 6, characterized in that at least one of the fluid channels (10) projects beyond a side wall (25) of the main body (2) also.

8. Filling device (1) according to one of claims 1 to 7, characterized in that between fluid channels (10) existing intermediate spaces (26) are at least partially free of material or component.

9. filling device (1) according to one of claims 1 to 8, characterized in that the fluid channels (10) are generated at least partially by means of an additive manufacturing process.

10. Filling device (1) according to one of claims 1 to 9, characterized in that the valve seats (1 1) are generated at least partially by means of an additive manufacturing process.

1 1. Filling device (1) according to one of claims 1 to 10, characterized in that fastening means for attaching valve means (12) to the base body (2) are at least partially produced by means of an additive manufacturing process.

12. Filling device (1) according to one of claims 1 to 1 1, characterized in that fluid accesses (27) and / or fluid outlets (28) are at least partially produced by means of an additive manufacturing process.

13. Filling device (1) according to one of claims 1 to 12, characterized in that the fluids facing surfaces (35) of the fluid channels (10), the valve seats (1 1), the fluid access (27) and / or the fluid outlets (28) are generated at least partially by means of an additive manufacturing process.

14. Filling device (1) according to one of claims 1 to 13, characterized in that the fluid channels (10) are partially configured by tube segments (24) which over side walls (25) of the main body (2) also cant, said tube segments ( 24) and the base body (2) are generated at least partially together by means of an additive manufacturing process.

15. Filling device (1) according to one of claims 1 to 14, characterized in that the base body (2) connecting means (29, 29A, 29B, 29C) for connecting fluid supply lines or of filling elements (5) for interacting with the medical bag , wherein these connection devices (29, 29A, 29B, 29C) and the main body (2) are generated at least partially together by means of an additive manufacturing process.

16. Filling device (1) according to claim 15, characterized in that a plurality of connection devices (29, 29 A) on a common support beam element

(30) are arranged side by side, said common support beam element (30) and the base body (2) are generated at least partially together by means of an additive manufacturing process.

17. Filling device (1) according to claim 16, characterized in that the common support bar element (30) by means of an additional holder part (31) on the base body (2) is arranged, said additional holder part (31), the support beam element (30) and the base body (2) are generated at least partially together by means of an additive manufacturing process.

18. Filling device (1) according to one of claims 1 to 17, characterized in that the additive manufacturing process comprises a 3D printing process, a 3D laser sintering process or the like.

19. BefUllvorrichtung (1) according to one of claims 1 to 18, characterized in that the base body (2) is made of formless or shape-neutral materials. 20. A method of manufacturing a filling device (1) for filling a medical bag, wherein a base body (2) of the filling device (1) with fluid channels for guiding against the medical bag to handle fluids and with valve seats (1 1) for adjusting Fluid flow is equipped, characterized in that the base body (2) is generated at least partially generative.

21. A method according to claim 20, characterized in that the base body (2) is generated at least around the fluid channels (10) around successively.

22. The method according to claim 20 or 21, characterized in that the base body (2), the fluid channels (10), the valve seats (1 1) and / or on the base body (2) arranged fluid accesses (27) and fluid outlets (28) be produced by a single manufacturing process (type of production).

23. The method according to any one of claims 20 to 22, characterized in that the base body (2) is at least partially made of a data set for operating a single production plant out. 24. Plant (3) for producing fluid-filled medical bags with a device (1) for producing the medical bag, with a device for filling the manufactured medical bag and with a device for closing the filled medical bag, characterized by a filling device (1) according to one of claims 1 to 19.