CN1853795A - Dosing pump device and method for manufacturing a filled dosing pump device - Google Patents

Abstract

The invention relates to a method for producing a filled dosing pump device, wherein a flowable product is filled into a film bag (2) which is accommodated, for example, in a container (11). The film bag (2) is closed by a manually operable pump (3) which, in the unloaded state, closes the fluid connection between an outlet opening (14) connected to the outside and the interior of the film bag (2) via at least one non-return valve (6, 7). Furthermore, the gas located in the film bag (2) is at least almost completely discharged, wherein the film bag (2) is compressed by means of a punch (16) or the like.

Description

Dosing pump device and method for manufacturing a filled dosing pump device

technical field

The invention relates to a dosing pump device having a container which is tightly connected to a manually operable pump which, in the unloaded state, closes the pump from the environment via at least one non-return valve Fluid communication between the discharge port and the interior of the container. Furthermore, the invention relates to a method for producing a filled dosing pump device and the use of such a dosing pump device.

Background technique

A dispensing device for fluids is known from DE 100 49 898 C2, by means of which eg liquid pharmaceuticals or cosmetics can be quantitatively dispensed from a container. The dosing pumps used for this work without air compensation, wherein the liquid in the container is contained in an inner bag which is sealed from the outside and which collapses during emptying.

Filling such inner bags with liquids such as pharmaceuticals or cosmetics is usually done in such a way that residual air remains in the inner bag. This is undesirable for different reasons. For example, air oxygen is always in contact with the liquid during storage, which leads to a shortened storage time or a reduction in the sterility of the liquid. However, filling fluid containers under a sterile atmosphere or in the presence of protective gas is very complicated and expensive.

Furthermore, complete emptying of the bag is only possible if no residual air remains in the inner bag after filling. Residual air in the inner container can also have a disturbing effect when the output device is not held upright during operation. Therefore, when the dosing pump unit is not positioned completely vertically, residual air is sucked in by the pump, which pumps not the liquid but the residual air out of the inner bag. This is particularly undesirable in the administration of medicaments such as nasal, ophthalmic or ear sprays, for which it is difficult to precisely hold the output device upright for administration.

It is therefore proposed in DE 10049898C2 that between the outer wall of the piston and the inner wall of the pressure cylinder of the dosing pump, a channel for suctioning residual air is formed, which communicates with the inner bag through an opening provided on the pump housing on the one hand, It also communicates with the outside world through a valve-type valve inside the pump. Through this channel in the pump, any residual air that may be present after filling the inner bag can be sucked out in order to avoid the above-mentioned disadvantages. However, a precondition for forming said channels for residual air in the inner bag is high precision in the manufacture of the pump. Furthermore, the production costs of such known delivery devices are increased due to the complex design of the pump. In this known dispensing device, the dosing pump projects with its pressure cylinder and the suction opening assigned to its non-return valve on the inner bag side into the inner bag.

A similar dosing pump is proposed in DE 101 08 486 A1, in which a channel for suctioning residual air is formed between the outer wall of the piston and the inner wall of the pressure cylinder of the dosing pump, which channel passes on the one hand The opening provided on the pump casing communicates with the inner bag, and on the other hand communicates with the outside world through the valve valve inside the pump. Any remaining air that may be present after filling the inner bag can be sucked through this channel in the pump in order to avoid the above-mentioned disadvantages. However, a precondition for forming said channels for residual air in the inner bag is high precision in the manufacture of the pump. Furthermore, the production costs of such known delivery devices are increased due to the complex design of the pump. In this known dispensing device, the dosing pump projects with its pressure cylinder and the suction opening assigned to its non-return valve on the inner bag side into the inner bag.

Because the valve in the delivery head of the known delivery device is designed in such a way that when the product being delivered under pressure flows from the pump into the delivery head, although the valve is open, the seal is pushed as long as the product does not resist the spring pressure (Dichtungsk rper), the valve is held in its closed position by the spring, so that no residual air is drawn outwards through the output head. Therefore, residual air can only be sucked in if the output head is not yet fitted on the pump. However, this entails the disadvantage that residual air always remains in the dispensing head, which must be expelled from the dispensing head by the user before the first use by actuating the pump before the product can be removed. Since air is compressible and only a small amount of product, for example about 28 mg, is withdrawn with one pump stroke, for example to administer a drug, multiple pump strokes are often required, which is unsatisfactory to the user.

Furthermore, a method for filling a film bag provided with a pump is known from US Pat. No. 5,144,788, wherein the film bag is open on its side facing away from the pump and is filled through this opening. The opening is then partially closed by welding, a channel through which residual air is sucked from the film bag being kept free. The channels that are still open should then be closed by welding. In this case it has proven to be difficult to seal the channel tightly shortly after suction, so that as little air as possible can flow back into the film bag through the channel which has not yet been closed.

It is known from DE 693 32 089 T2 and WO 93/22200 A1 to suck the remaining air from the container by means of a pump through the pump.

Contents of the invention

In contrast, it is the object of the present invention to provide a dosing pump device of the above-mentioned type and a method for producing a filled dosing pump device in which suction of residual gas from the container can be easily achieved.

According to the invention, said object is mainly achieved in that the container is sealed relative to the pump by means of a cover with a particularly concave recess facing the container, wherein the suction opening of the pump is used to suck the gas in the container through the pump No, or at least no appreciable, projection into the container through the lid. In this way the gas in the container can be sucked by the pump, wherein during pumping the low pressure of the suction device opens one or more check valves of the pump and thus establishes fluid communication between the discharge port and the interior of the container. Since the residual air is sucked in by the pump itself, complex air guide structures passing over the pump can be completely dispensed with. It is also possible to keep the construction of the pump particularly simple. So the non-return valve can be formed by balls which are pressed against the corresponding valve seat, for example by means of a pressure spring, or the non-return valve can also be formed by a rubber lip or similar elastic element which can be closed in its unloaded state The valve seat is lifted from the valve seat, for example by fluid pressure.

Suctioning of residual gas from the container can be carried out in a state of the dosing pump arrangement in which only a pump is provided on the container with, for example, a non-return valve, but without an outlet head which usually has another non-return valve, or The suction takes place via the pump and the delivery head, ie through the two non-return valves, which are open during the suction. In the first mentioned alternative, the output head etc. can be retrofitted on the pump. In the sense of the invention, therefore, an outlet opening is formed by a nozzle or the like on the outlet head or by any opening through which the pump can be connected to the outlet head.

According to the invention, the suction opening of the pump does not or does not protrude appreciably into the container by means of, for example, a recess recessed in the cover. Any residual air that may remain in the container after filling the container collects in the upper region of the container formed by the recess, in which region the pump is arranged. In order to avoid that the suction port of the pump has been protruding into the liquid, although it is desirable to release the fluid during the operation of the pump, it is not suitable for sucking the remaining air from the container, so the suction port should be as close as possible to the container. The inner wall of the container terminates flush, or protrudes at most only a few millimeters into the interior of the container. Residual air bubbles thus formed on the liquid can be pumped out of the container by means of the pumping process described above until the liquid contained in the container is sucked through the suction opening. Since the air cannot flow back into the container through the at least one non-return valve, after the remaining air has been sucked out, the liquid contained in the container can be in any position—that is to say when the pump is positioned upwards, upside down or sideways— The discharge from the container is by means of a pump, wherein the suction opening of the pump can always only suck up liquid.

The term "liquid" as used in connection with the present invention shall here include all flowable substances which can be withdrawn by such a pump. In addition to thin liquid substances, this can also be thick liquid, paste or jelly substances.

When suctioning gas from the container, a suction hood is placed on the dosing pump device in such a way that at least the discharge opening of the pump is surrounded by the suction hood. The suction hood is preferably placed on the dosing pump device in such a way that the suction hood is placed on the wall of the container or of a cover that may be connected to the container and then seals around the portion of the pump that projects beyond the container or the cover protrudes outwards. on the part. In order to suck the remaining air out of the container, it is then only necessary to remove any protective caps which may be present from the pump or the discharge opening beforehand. This sucks the remaining air out of the container by the low pressure applied in the suction hood, where the two non-return valves are opened by the suction pressure. The ball, sealing lip, etc. are now lifted from their seats against the elastic closing force. After suction, the non-return valve closes automatically, thus preventing air from re-entering the container.

According to a preferred embodiment of the invention, the container has, in particular a flanged cover, by means of which the container is sealed relative to the pump, wherein the suction opening of the pump does not protrude, or at least does not protrude appreciably, beyond the cover into the container. . The lid can here be formed from a rigid material, so that it can be connected to a likewise rigid shell or housing of a container with a variable volume.

Since the dosing pump device according to the invention can be operated without air compensation, the container must have a variable volume. This can be achieved particularly simply in that the container is formed from a collapsible film or the like, for example a film bag. The container therefore shrinks or collapses during emptying of the container.

For easier handling of the dosing pump device, in particular for holding the device during handling of the pump, it is preferred to provide the container with a rigid casing which surrounds the container and can be connected to the pump, for example via a cover. Here vent holes are provided in the rigid housing so that the collapse of the container in the housing is not prevented.

According to an advantageous embodiment of the invention, the lid is provided with a surrounding edge, to which the container, for example in the form of a film bag, is fastened. Here, the surrounding edge is, for example, flanged or stepped, wherein the film bag or similar container preferably bears firmly or sealingly against the lower edge region of the lid in the use position. The position of use is defined here as the position in which the pump is located vertically above the cover and the container, for example designed as a film bag, is located vertically below the cover and the pump.

The rigid housing can be designed as an in particular cylindrical container which is open at least on one end side, wherein the at least one open end side is closed by a cover. The dosing pump device can thus be produced particularly simply by sliding the cap, on which the container is fastened, onto the rigid housing. A seal is provided between the rigid shell and the cover if necessary.

Preferably, the concave recesses in the lid extend, for example spherically, from the surrounding edge connected to the container to the suction opening in an arcuate manner. The depth of the recess thus increases continuously, in particular arcuately, from the edge of the cover which can be attached to the container designed as a film bag to the suction opening of the pump. The configuration of the notch here is not limited to the shape of the spherical arch, in fact the notch can also be designed to be conical, truncated, pyramidal, truncated pyramidal, stepped and/or with a bend or Straight partial faces. What is important here is that the recess is designed such that in the use position the deepest point, preferably defined by the surrounding rim, is as close as possible to the container, while in the use position the vertically highest point lies in the region of the suction opening of the pump. As a result, residual air that may be present in the container can collect in the vicinity of the suction opening of the pump and can thus be easily sucked out by the pump.

Preferably, the pump is provided with a pressure chamber with a piston (chamber) guided therein, a first non-return valve connecting the pressure chamber to the container, and a second non-return valve, optionally associated with the delivery head. Here, if a lower pressure exists in the pressure chamber than in the container, the first non-return valve allows flow from the container to the pressure chamber, while substantially blocking flow in the opposite direction. Correspondingly, when the pressure in the pressure chamber exceeds a certain value, the second non-return valve permits a flow from the pressure chamber to the environment without, for example, ambient air being able to flow back into the pressure chamber via the second non-return valve. The non-return valve can be designed as a ball which is elastically pressed against the valve seat, for example by means of a spring. Alternatively, the non-return valve may only be formed by a sealing lip, which rests on the valve seat in the unloaded state and can be lifted elastically from the valve seat due to fluid pressure. Basically all non-return valves can be used in the dosing pump device according to the invention which prevent air etc. to flow back into the container and allow output of liquid from the container. Instead of the above-described configuration of a pump with piston and pressure chamber, a bellows-type pump or another suitable pump arrangement is conceivable. The second non-return valve can be arranged in the discharge head, which is optionally removed from the pressure chamber or the piston chamber, with the suction of the residual gas with the discharge head or without the discharge head, for which only one non-return valve is required .

Depending on the purpose of use of the dosing pump device, the discharge opening may be formed by a nozzle for atomizing the liquid content of the container. However, it is also possible to design the discharge opening in a different manner in order to deliver individual larger droplets of the liquid via the dosing pump arrangement. The dosing pump device according to the invention is particularly suitable for dosing, dispensing, applying etc. of liquid cosmetics and/or pharmaceuticals.

A method according to the invention for manufacturing a filled dosing pump device comprises the steps of: filling a film bag with a flowable product; subsequently closing the film bag by means of a manually operable pump, Closing the fluid communication between the outlet opening connected to the outside and the interior of the film bag under load by means of at least one non-return valve; and at least nearly completely venting the gas located in the film bag. In this case, the film bag is compressed, in particular by means of a punch or the like, and thus the gas located in the film bag is discharged from the film bag via the pump and/or via a bypass channel bypassing the pump.

By removing the residual air according to the invention via the pump itself or via the bypass channel, complete emptying of the film bag can be achieved even with pumps or delivery heads which do not permit the extraction of residual air. The dosing pump device is thus operational/ready for use and it can already be dispensed by the user with the first pump stroke of the flowing product. The operating comfort of the dosing pump arrangement is thus considerably increased. Furthermore, the removal of residual air from the film bag according to the invention is particularly simple and quickly automatable if the compression takes place by means of punches or by means of the pressure difference between the interior and the environment of the film bag by suctioning the residual air through low pressure. . The production costs of the filling dosing pump device according to the invention can thus be reduced.

Likewise, the construction of the pump can be kept particularly simple. Such non-return valves can be formed, for example, by balls pressed against the corresponding valve seats by compression springs, or the non-return valves can also be formed by rubber lips or similar elastic elements, which are not loaded The valve seat is closed in the closed state and can be lifted from the valve seat, for example, by fluid pressure.

In order to vent the air from the film bag, it is advantageous to bring the film bag into a position in which the pump is arranged essentially vertically above the film bag. In other words, the discharge of residual air from, for example, a collapsible film bag can be simplified if the residual air from the air bubbles towards the pump can be discharged through a discharge opening provided in the pump, for example at its vertical lower end. It is preferred here if the suction opening for escaping the gas contained in the film bag is arranged on the pump in such a way that the suction opening does not protrude, or at least does not protrude appreciably, into the film bag.

In a further development of the idea according to the invention it is envisaged that before or after filling the film bag is placed in a container which is more rigid than the film bag and which is closed together with the film bag by means of a pump. Here, at least one opening remains in the container, through which a punch or the like can be introduced into the container in such a way that the film bag in the container is compressed and the film is thus discharged from the film bag via the pump and/or via a bypass channel bypassing the pump Gas present in the bag.

It is preferred here if the film bag and/or the container is closed by a lid connected to the pump. The construction of the dosing pump device is therefore particularly compact and simple.

During the discharge of residual gas, at least one non-return valve of the pump can open and thus establish a fluid communication between the discharge opening and the interior of the film bag. As a result, the ball, sealing lip, etc. is lifted from its seat against the elastic closing force. The non-return valve closes automatically after the remaining gas has been exhausted, thus preventing air from re-entering the container. The discharge of residual air from the container can be carried out in the state of the dosing pump device, in which only a pump with an output head such as a non-return valve but not usually with another non-return valve is provided on the container, Or the discharge takes place through the pump and the outlet head—that is to say through the two non-return valves, which are then opened. In the first-mentioned alternative, the output head can be retrofitted on the pump. Within the scope of the invention, the outlet can thus be formed by a nozzle or the like on the delivery head or by any opening through which the pump can be connected to the delivery head.

Description of drawings

Improvements, advantages and application possibilities of the invention can also be gleaned from the following description of the exemplary embodiments and the figures. All features described and/or illustrated here form the content of the invention per se or in any combination, independent of their generalization or reference to the claims. in:

FIG. 1 schematically shows a cross-sectional view of a dosing pump according to a first embodiment of the invention; and

FIG. 2 schematically shows a sectional view of a dosing pump according to a second embodiment of the invention.

Detailed ways

The dosing pump device 1 according to FIG. 1 has, as a container, a collapsible film bag 2 which is filled, for example, with a liquid medicinal or cosmetic product. The film bag 2 (as explained in more detail below) is connected in a sealing manner to a pump 3 which, in the embodiment shown, comprises a pressure chamber 4 with a piston 5 sliding therein and two non-return valves 6 or 7 .

A spring 8 is arranged in the pressure chamber 4 in such a way that the piston 5 is biased upwards in the figure. The piston 5 has a central through-opening 9 through which the fluid is pumped from the film bag 2 to the environment.

For this purpose, the first non-return valve 6 is designed in such a way that if the spherical valve element 6a is lifted from its valve seat 6c against the force of the valve spring 6b due to the low pressure in the pressure chamber 4, it allows Flow of bag 2 into pressure chamber 4. However, the flow in the opposite direction from the pressure chamber 4 into the film bag 2 is closed by the first non-return valve 6 .

Furthermore, the second non-return valve 7 is arranged such that fluid can be discharged through the non-return valve 7 to the in the outside world. In contrast, a non-return valve 7 prevents, for example, ambient air from flowing back into the pressure chamber 4 . In the figure, the second check valve 7 is shown as a component of the pump 3 . In contrast to this, the second non-return valve can also be assigned to an outlet head which can be fastened to the pump 3 . In this case, the second valve does not have to be designed as shown in the figure, but can be designed as described in DE10108486A1.

In the embodiment shown, the film bag 2 is provided with, for example, a reinforced cover 10 which seals the pump 3 relative to the film bag 2 . For this purpose, the cover 10 can be cast onto the pump 3 or welded to the pump. The surrounding edge of the collapsible film bag 10 can be welded, glued or otherwise sealingly connected to the edge region of the rigid cover 10 in the same manner. The film bag 2 is accommodated in a likewise rigid container (housing) 11 , which is fixedly or detachably connected to a cover 10 . A bottom opening 12 is provided in the container 11 so that the film bag 2 in the container 11 can be freely expanded or collapsed without being hindered by overpressure or low pressure in the container 11 .

The pump 3 has a suction opening 13 in the lower part of the drawing, which leads into the film bag 2 , and an outlet opening 14 in the upper part of the drawing, which communicates with the environment. Here, the pump 3 and the suction opening 13 are arranged on the film bag 2 or the cover 10 in such a way that in the embodiment shown the suction opening 13 does not protrude, or at most only very slightly, beyond the cover 10 into the film bag 2 . Here, a depression 15 is formed in the cover 10 , into which any air bubbles with residual air present in the film bag 2 can collect. For this purpose the depth of the depression 15 increases continuously from the edge of the cover 10 to the center of the cover 10 where the suction opening 13 of the pump 3 is arranged. In order to further prevent residual air from remaining in the film bag 2, the edge of the cover 10 protruding into the film bag 2 rests against the film bag 2 and is optionally connected to the film bag. That is, in the vertical position of the dosing pump arrangement shown in the figures, all residual air is forcibly collected in the vicinity of the suction opening 13 of the pump 3 and can be discharged through this suction opening.

To this end, a low pressure is applied on the discharge port 14, so that the valve bodies 6a and 7a can be lifted from their valve seats 6c or 7c against the force of the valve spring 6b or 7b and can be pumped by the pump 3 through the suction port 13 to the discharge port. Outlet 14 sucks in air. Alternatively or additionally, a punch 16 or the like that compresses the film bag 2 is introduced into the container 11 through the opening 12 . Due to the excess pressure in the container 11 , residual air can likewise be evacuated by the pump 3 , so that the valve bodies 6 a and 7 a are lifted off their valve seats 6 c or 7 c against the force of the valve springs 6 b or 7 b. When the liquid is sucked in through the suction opening 13 and discharged through the discharge opening 14, there is no residual air in the film bag 2 and the pump 3 or in the delivery head.

After the suction process has ended, the two non-return valves 6 and 7 are closed again by the force of the valve springs 6b or 7b, so that ambient air cannot flow back into the container 2 . The removal of residual air takes place, for example, in that a suction hood, not shown in the figure, seals at least the outlet opening 14 . Alternatively to this, the suction hood can also be fitted onto the cover 10 in such a way that the entire pump 3 is accommodated in the suction hood.

If a second non-return valve is provided in the outlet head (not shown in the figure), residual air can be sucked out of the container 2 before or after fitting the outlet head. In said first case, only the first non-return valve 6 is open during suction and prevents air from flowing back into the container 2 after suction. Conversely, both aforementioned non-return valves 6, 7 are open during suction when the delivery head is fitted.

If an overpressure remains in the container 11 , the central through-hole 9 and the delivery head of the pump 3 are also filled with product after the residual air has been completely evacuated from the dosing pump device 1 . The user can thus withdraw the flowable product already with the first pump stroke and does not need to first fill the pump 3 with several pump strokes before using the dosing pump device 1 for the first time.

FIG. 2 shows another preferred embodiment of the dosing pump arrangement 1 according to the invention, which has a structure similar to the embodiment according to FIG. 1 . The function of the dosing pump device 1 likewise takes place in the manner described above with reference to FIG. 1 . In this embodiment, identical components are identified with the same reference numerals.

In this embodiment, the container (housing) holding the film bag 2 is designed in two parts, comprising a partly double-walled container lower part 11a and a container upper part 11b fixed on the container lower part by a snap connection, wherein the container upper part 11b Holds the pump 3 and guides the piston 5 . This construction makes it possible to achieve container geometries that can be produced particularly easily, for example in a casting process.

The lower opening 12 in FIG. 2 for the piston etc. is closed after residual air has escaped from the film bag 2 by a cover 17 in which vent holes are also provided. After the remaining air has escaped from the film bag 2, the pump itself can also be detachably closed by a protective cover 18 which can be slipped over the container upper part 11b.

A seal, optionally integrated with the film bag 2 , can be provided between the lid 10 and the container lower part 11 a. The body and cover 10 forming the pressure chamber 4 are designed and adapted to one another in such a way that these components can also be connected to each other in a sealed manner by snapping the container upper part 11b onto the container bottom part 11a.

In order to operate the pump 3 , in the embodiment according to FIG. 2 a head 19 is provided which is connected to the piston 5 and which is fitted over the container upper part 11 b. This limits the stroke of the piston 5 . In the head 19 there is a second non-return valve 7 which, in the embodiment according to FIG. 2 , has a nozzle for delivering droplets.

Due to the design of the nozzle and the second non-return valve 7 , in this embodiment no residual air can be sucked in via the pump 3 and the second non-return valve 7 . However, the film bag 2 can be compressed, for example by means of a piston or the like, in order to expel the remaining air from the film bag and the pump 3 in order to remove the remaining air.

Table of reference signs

1 dosing pump unit

2 film bags

3 pumps

4 pressure chambers

5 pistons

6 first check valve

6a valve body

6b valve spring

6c seat

7 Second check valve

7a valve body

7b valve spring

7c seat

8 springs

9 central through holes

10 caps

11 container/housing

12 Exhaust openings/inlet channels

13 suction port

14 outlet

15 depression

16 punches

17 covers

18 protective cover

19 heads

Claims (14)

1.1. one kind is used for weight feed, output and use liquid cosmetics and/or medicine, especially for auristilla, drip the pharynx agent, the dosing pump installation of eye drops and/or nasal drop or its spray, have have variable volume with the container (2) of receiving fluids be connected with this seal of vessel, can manually operated pump (3), described pump has the outlet (14) that is in communication with the outside and with the internal communication of container (2), be used for liquid pump orifice (13) but and at least one antagonistic spring power (6b, the check-valves of 7b) opening (6,7), the fluid that described check-valves cuts out under the state that is not subjected to load from outlet (14) to container (2) flows, it is characterized in that, described container (2) is by having towards container (2), particularly the lid (10) of Ao Ru recess (15) is sealed with respect to pump (3), and wherein the pump orifice (13) that is used for being arranged in the gas of container (2) by pump (3) suction of pump (3) does not have or at least surpass lid (10) significantly to stretch into container (2).

2. dosing pump installation as claimed in claim 1 is characterized in that, container (2) be designed to by Collapsible film make the bag.

3. dosing pump installation as claimed in claim 1 or 2, it is characterized in that set a shell of rigidity (11) basically for container (2), described shell surrounds container (2), and can be connected with lid (10) and/or pump (3), wherein in shell, be provided with exhaust port (12).

4. as each described dosing pump installation among the claim 1-3, it is characterized in that, the lid (10) have around the edge, container (2) is fixed on this edge.

5. as claim 3 or 4 described dosing pump installations, it is characterized in that, described outer rigid housing (11) be designed at least a distolateral opening, columniform container particularly, the distolateral of wherein said at least one opening can be sealed by described lid (10).

6. each described dosing pump installation in the claim as described above is characterized in that, the recessed recess (15) in the lid (10) for example ball archedly from extending to pump orifice (13) of being connected with container (2) around the edge.

7. dosing pump installation as claimed in claim 6 is characterized in that, the degree of depth of recess (15) from lid (10) be fitted on the container that is designed to bag film (2) the edge to the pump orifice (13) of pump (3) continuously, particularly increase archedly.

8. each described dosing pump installation in the claim as described above, it is characterized in that, pump (3) has a pressure chamber (4), first check-valves (6) and one second check-valves (7), wherein, described pressure chamber has be directed piston (5) in this pressure chamber, described first check-valves makes pressure chamber (4) be connected with container (2), and flowing and sealing flowing allowing from container (2) to pressure chamber (4) along the counter current direction, described second check-valves sets to outlet (14), is arranged in case of necessity on the delivery; Described second check-valves allows flowing from pressure chamber (4) to the external world, and sealing flowing along the counter current direction.

9. each described dosing pump installation in the claim as described above, it is characterized in that the outer rigid housing (11) that surrounds container (2) is formed with form of sleeve and is arranged on away from opening (12) on the side of lid (10), that be used to import drift (16) etc.

10. be used for the particularly liquid cosmetics and/or weight feed, the output of medicine as the dosing pump installation of each manufacturing among the claim 1-9, the application of using etc.

11. a method that is used to make the dosing pump installation of filling comprises the following steps:

-flowable product is filled in bag film (2) etc.,

-then by can manually operated pump (3) closed film bag (2), the fluid connection of described pump between the inside of outlet (14) that is connected with the external world by at least one check-valves (6,7) canned pumps (3) under the state that is not subjected to load and bag film (2),

-approaching at least the gas that is arranged in bag film (2) of getting rid of fully,

It is characterized in that,, and from bag film, discharge the gas that is arranged in bag film (2) by pump (3) and/or by the bypass channel of walking around pump thus particularly by means of compression bag films (2) such as drifts (16).

12. method as claimed in claim 11 is characterized in that, bag film (2) is moved to such position be arranged in the gas of bag film with discharge, pump in this position (3) substantially perpendicularly is arranged on the top of bag film (2).

13. as claim 11 or 12 described methods, it is characterized in that, before or after filling, bag film (2) packed into one than the big container (11) of bag film (2) rigidity in, described container seals by pump (3) with bag film (2), wherein in container (11), keep at least one opening (12), can like this drift (16) etc. be imported in the container (11) by this opening, be the bag film (2) in the compression container (11), and discharge from bag film by pump (3) and/or by the gas that the bypass channel of walking around pump will be arranged in bag film (2) thus.

14., it is characterized in that by lid (10) closed film bag (2) and/or container (11), described lid is connected with pump (3) as each described method among the claim 11-13.

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