DE202023104513U1 - Container for a dry concentrate - Google Patents

Abstract

Container (101), preferably a barrel, for medical substances, with a first opening (108), which can be closed by a screw cap (112), and a second opening (110), in which a riser pipe (122) is arranged, thereby characterized in that the screw cap (112) has a screw cap opening (114) in which a first coupling device (118) is arranged, in which in turn a filter device (116) is arranged.

Description

The present disclosure relates to a (medical) container, in particular a barrel or a cartridge, for medical substances such as dry concentrate. The container has a first opening, which can be closed by a screw cap, and a second opening in which a riser pipe is arranged.

State of the art

A known medical container, for example a dry concentrate cartridge, has three openings. A fill opening is centrally positioned at a midpoint of a lid portion of the container. The filling opening can be locked with a screw cap. The container is filled via the filling opening with powdered and/or liquid chemical substances or with dry concentrate, which contains salts and an acid, for example acetic acid or citric acid, and potentially also other substances, for example glucose.

Laterally offset from the filling opening, the known container has two further openings, namely a riser pipe opening and a filter candle opening for a filter device such as a filter candle. A first coupling is inserted into the riser opening, via which a riser is attached to the container, in particular to the lid section of the container. A fluid such as water purified by (reverse) osmosis is filled into the container through the riser pipe. The position and orientation of the riser pipe are particularly important for a successful mixing process in the container. For this reason, the riser pipe is inserted into the riser pipe opening in a fixed position. The filter candle opening also has a (second) coupling, via which a filter device, such as a filter candle, is inserted into the filter candle opening. During the mixing operation, a fluid such as dialysis concentrate is pumped back into the mixing system through the filter candle and enables pressure equalization.

To produce dialysis concentrate, the container is connected, for example, to a mixing system and filled with dry concentrate via the mixing system through the filling opening. The fluid, for example water (purified by reverse osmosis), can then be poured into the container via the riser pipe in order to dissolve the dry concentrate and produce a solution. This solution can, for example, be the (acidic) dialysis concentrate or form a basis for the production of dialysis concentrate. The finished/mixed solution, in particular dialysis concentrate, is conveyed out of the container via the filter candle and the filter candle opening or sucked out via the riser pipe.

In the known container, the filling opening must be introduced manually into the barrel blank or into a lid or lid section of the container, in particular the barrel. To do this, the filling opening must be drilled and the container then vacuumed out. In a further production step, the thread or another closure for the filler neck must then be welded into the container. This makes producing the container labor-intensive and expensive.

Brief description of the revelation

It is therefore the object of the present disclosure to overcome or at least reduce the disadvantages of the prior art and in particular to provide a container that can be filled easily and produced quickly and inexpensively.

According to the disclosure, this task is solved by a container according to the features of claim 1. Advantageous developments of the present disclosure are the subject of the attached subclaims and/or are explained below.

The present disclosure relates to a (medical) container. The container can in particular be a barrel or a cartridge for holding a medical substance, such as medical dry concentrate, preferably for producing dialysis concentrate. The lid has a first opening into which a screw lid is inserted or screwed, i.e. H. which can be closed by a screw cap, and a second opening, preferably a riser opening in which a riser pipe is arranged. The screw cap has a screw cap opening in which a first coupling device, preferably a first coupling or a first coupling part, is arranged or integrated. A filter device, preferably a filter candle, is again arranged in the first coupling device.

The container preferably has a (round) bottom section, a (circumferential) side wall or a (circumferential) jacket section and a (round) lid section. The lid section has two openings, the first opening being a combined fill opening and filter cartridge opening. The first opening can be closed by the screw lid or screw cap. The medicinal substance can be filled into the container by unscrewing the screw cap. The screw cap itself has an opening in which the Filter device is introduced. Through the opening in the screw cap, fluid can be removed from the screwed-on container, for example pumped out of it. The filling opening and a screw cap opening are therefore combined in the same opening. The second opening is the riser opening into which the riser is inserted.

The container can in particular be a barrel or a cartridge for storing or holding powdered and/or liquid substances or chemicals, i.e. a dry concentrate cartridge. The container can be used in particular to mix various (powdered and/or liquid) chemicals or substances in the container and to mix these substances with water (purified by reverse osmosis). The container or the lid section of the container can also be adapted and designed to be connected to a filling system in order to fill the (various) chemicals into the filling opening.

The (medical) dry concentrate can, for example, be or have a salt and an acid, for example acetic acid or citric acid, and potentially other substances, for example glucose. The dry concentrate can be used in particular in a mixture with osmosis water, i.e. water purified by reverse osmosis, to produce dialysis concentrate.

The lid portion may be formed integrally as part of the container or placed on and connected to the side wall of the container. The cover section can, for example, be welded to the side wall.

The (circumferential) jacket section or the side wall can be formed essentially perpendicular to the cover section and/or the base section. The casing section can be curved/convex outwards in order to increase the stability of the container.

The container can be filled with osmosis water through the riser pipe. The osmosis water can be mixed with the powdery and/or liquid contents inside the container and can thus form the dialysis concentrate.

The fluid is conveyed into the mixing system during the mixing process via the filter device, in particular the filter candle. The filter device can prevent undissolved solids or chunks from getting into the mixing system and not being able to be dissolved there. It can thus be advantageously achieved that the solution removed, in particular dialysis concentrate, forms or is a homogeneous solution. The filter device/candle can in particular be a reusable part so that the filter device/candle can be reused for multiple fillings of the container.

Specifically, the core of the present disclosure is that the container or barrel has only two openings on the top of the container or barrel, with a preferably larger first (filling) opening having a screw cap with an integrated coupling, in particular for a filter device / filter candle, and a riser pipe is arranged in a second, preferably smaller opening.

The container of the present disclosure has the following advantages. The screw cap of the filling opening has the screw cap opening into which the filter device, in particular the filter candle, can be installed. This means specifically that the filling opening and the filter device are provided at the same opening. This saves an opening in the container or in the lid section of the container, particularly in comparison to the prior art. A manufacturing step for forming the additional opening can therefore be omitted. This means that manufacturing effort and costs can be saved. Overall, the present disclosure provides a container that is easy to fill and inexpensive to produce. In particular, the saved production steps can reduce possible contamination that could be introduced into the container during production. Particularly when drilling into the plastic container, chips can arise which, for example due to electrostatic charge, adhere to an inner wall of the container and can therefore be difficult to vacuum out. The chips can, for example, clog or damage filters in a cleaning system.

The container of the present disclosure thus particularly has exactly two openings, that is, not one opening, three openings, four openings or more openings. The first opening is the fill opening and the second opening is the riser opening. This means that an opening can be saved compared to known containers. Specifically, this reduces the manufacturing effort for forming multiple openings.

Preferably, the container can be prepared and designed to hold the dry concentrate. In particular, the container can be filled with the dry concentrate at the factory and delivered in a filled state. Ie the Container can contain the dry concentrate. Alternatively, the container with the dry concentrate can also be filled manually.

According to the present disclosure, the first opening is prepared in particular both for filling the chemical substance/dry concentrate into the container and for removing or discharging the (mixed) fluid from the container. This allows the combined filling and filter cartridge opening to be realized. The filling opening can in particular have a filling function for the dry concentrate, while the opening in the screw cap simultaneously serves as an outlet for the (finished/mixed) dialysis concentrate. The first opening can therefore represent a combined filling and outlet opening, with the outlet function additionally having a filter function. The combined opening means that an additional opening can be saved.

Preferably, the first opening and the second opening may each be offset with respect to a center of a lid portion of the container. In other words, the riser opening and the filling opening can each be laterally offset from the center of the lid section of the container. I.e. the first opening and the second opening can each be arranged on the cover section in such a way that they are not formed centrally. The contents of the container can be mixed well thanks to the filling opening offset to the side. If a mixer or mixing device is inserted into the filling opening, the mixer can also be laterally offset from the center of the container due to the lateral displacement of the filling opening. This allows the contents of the container to be mixed well. The lateral arrangement can also be advantageous for better mixing of the riser pipe for filling the osmosis water.

Due to the lateral or radially outwardly offset position of the filling opening, a larger cone of material can form on the side wall of the container. This cone can mean that the specified amounts of salt cannot be added to the barrel or that incorrect dosages can occur when filling. This problem can be solved by a vibration unit in the filling system. The filling system can have a stop that rests on the side wall of the container. The vibration unit shakes the container and thus reduces the cone of liquid during the filling process.

According to a further optional aspect of the present disclosure, the first opening and the screw cap opening may be arranged concentrically with one another. The filter device/filter candle can be inserted into the screw cap opening. The first opening can thus realize its combined functionality as a filling opening for the dry concentrate and as an outlet opening for the dialysis concentrate.

Preferably, the first opening can have a larger diameter than the second opening. This means that the filling opening can be larger than the riser opening. This makes filling the dry concentrate easier.

Preferably, the riser pipe can be (firmly) fastened in the second opening via a second coupling device arranged in the second opening or integrated into it. This means that the riser pipe can be fastened in the riser pipe opening with a second coupling or a second coupling part. In particular, the riser pipe can be sleeved through the coupling in the riser pipe opening. As a result, the riser pipe can be inserted into the riser pipe opening in a fixed position. The quality of the mixing in the container can be influenced by the position and orientation of the riser pipe or the discharge opening. Therefore, a firm connection between the riser pipe and the coupling device is advantageous. The coupling for the riser pipe can be inserted into the riser pipe opening using a cohesive, positive and/or non-positive joining process. The coupling for the riser pipe can in particular be glued, screwed, pressed and/or welded into the riser pipe opening.

Preferably, the riser pipe extends (approximately) to the bottom portion of the container. This can make it easier to fill the container with the osmosis water and improve the mixing of the dry concentrate with the osmosis water.

Preferably, the first coupling device for the filter device/filter candle can be inserted into the screw cap opening by cohesive joining such as gluing, welding or soldering, and/or by screwing and/or by pressing.

Preferably, the screw cap can have a sealing ring that seals the first opening. The sealing ring is preferably made of silicone. The sealing ring advantageously prevents the contents from escaping from the container. The screw cap can be tightened with a torque of 75 Nm to ensure a secure seal of the filling opening.

The sealing ring can in particular be made of silicone rubber (VMQ) and can in particular have a thickness or a diameter of 5 mm exhibit. Silicone rubber has high elasticity. This means that the sealing ring can be reused without becoming plastically deformed.

Short description of the characters

• 1 shows a sectional view through a container according to the prior art;
• 2 shows a sectional view through a container according to the present disclosure;
• 3 shows a detailed view of the sectional view from the 2 ;
• 4 shows a top view of the container according to the present disclosure; and
• 5 shows a perspective view of a sealing ring for the container according to the present disclosure.

Detailed description of the characters

1 shows a sectional view through a container 1 according to the prior art with a round bottom section 2 and a circumferential lateral surface or side wall 3, which protrudes essentially vertically from the round bottom section 2. The container 1 also has a round lid section 4. The lid section 4 has a filling opening 5, a riser pipe opening 6 and a filter candle opening 8. The filling opening 5 can be covered or closed by a screw cap 10. A first coupling 12 is introduced into the riser opening 6, in which a riser 14 is positioned. A second coupling 16 is inserted into the filter candle opening 8, in which a filter candle 18 is positioned.

2 shows a sectional view through a container 101 according to the present disclosure. The container 101 has a round bottom section 102, a circumferential lateral surface or side wall 104, which protrudes essentially perpendicularly from the bottom section 102, and a lid section 106. The side wall 104 is convex and curves outwards. The lid section 106 has a first opening or filling opening 108 and a second opening or riser opening 110. The filling opening 108 can be closed by a screw cap or screw cap 112. The screw cap 112 has a filter candle opening or screw cap opening 114, into which a filter device in the form of a filter candle 116 is inserted. The filter candle 116 is connected to the screw cap opening 114 in the screw cap 112 via a first coupling device or coupling 118. A second coupling device or coupling 120 is introduced into the riser opening 110, in which a riser pipe 122 is positioned. The screw cap 112 additionally has a sealing ring 124, which seals the filling opening 108 when the screw cap 112 is screwed on.

If medical substances, such as dry concentrate, are to be filled into the container 101, the screw cap 112 is unscrewed together with the filter candle 116 and removed from the filling opening 108. The dry concentrate can thus be filled into the container 101 through the filling opening 108. If the screw cap 112 is then reinserted into the filling opening 108 and screwed shut, the filling opening 108 is closed again. Water that has previously been purified by reverse osmosis can be filled into the container 101 through the riser pipe 122. The osmosis water mixes with the dry concentrate in the container 101 and forms a solution that can be used as a dialysis concentrate in a dialysis treatment. The mixed dialysis concentrate can be removed from the container through the screw cap opening 114 and is filtered through the filter candle 116. Thus, despite the screwed-on filling opening 108, fluid can still be introduced into the container 101 through the riser pipe opening 110 and removed from the container 101 through the screw cap opening 114. The fluid introduced into the container 101 through the riser opening 110 is osmosis water, while (mixed) dialysis concentrate is removed from the container 101 through the screw cap opening 114 or the riser opening 110.

3 shows the screw cap 112 in a detailed view. The screw cap 112 is inserted into the filling opening 108 of the lid section 106. The screw cap 112 has the filter candle opening or screw cap opening 114. The first coupling 118 for the filter candle 116 is inserted into the screw cap opening 114. The filter candle 116 is essentially fixed in position with the first coupling 118 and thus with the screw cap 112. When the screw cap 112 is unscrewed, the filling opening 108 is exposed. When the screw cap 112 is screwed in, the filling opening 108 is blocked. Nevertheless, the dialysis concentrate can be removed from the container 101 via the screw cap opening 114, for example pumped out. For this purpose, a connection of a hose can be connected to the first coupling 118. The dialysis concentrate is filtered through the filter candle 116 when it is removed. This means that solid or undissolved components in particular can be filtered out of the dialysis concentrate.

4 shows a top view of the lid section 106. The first opening as a filling opening 108 and the second opening as a riser opening 110 are each positioned offset radially outwards from the center of the lid section 106. The filling opening 108 and the riser opening 110 both lie on a central or symmetry axis of the cover section 106, that is, they lie diametrically opposite one another. The riser pipe 122 is fastened in the riser pipe opening 110 via the second coupling 120. The position and orientation of the riser pipe 122 are important for a successful mixing process in the container 101. That is why the riser pipe 122 is firmly inserted into the side riser pipe opening 110 via the second coupling 120. The first coupling 118 for the filter candle 116 is inserted into the screw cap opening 114.

5 shows a perspective view of a sealing ring 124. The sealing ring 124 is prepared to be attached between the screw cap 112 and the filling opening 108. The sealing ring 124 thus seals between the screw cap 112 and the filling opening 108.

The sealing ring 124 is preferably made of silicone rubber (MVQ/VMQ). Silicone rubber is peroxide cross-linked and based on methyl, vinyl and silicone. It shows very good temperature resistance and is a well-known material for the production of sealing rings, such as O-rings. The sealing ring 124 can have an outer diameter of 145 mm, an inner diameter of 135 mm and a thickness of 5 mm.

The sealing ring 124 in particular has a density of 1.14-1.17 g/cm3 and a Shore hardness of 60 A. A tear strength can be 9 MPa, an elongation at break of 600%, and a tear resistance of 35 N/mm . The compression set of the material for the sealing ring 124 can be 25%. The sealing ring 124 can also be used in a temperature range of -50 ° C to 200 ° C and is biologically compatible.

Reference symbol list

1

container

2

floor section

3

Side wall

4

Lid section

5

Filling opening

6

Riser opening

8th

Filter cartridge opening

10

Screw cap

12

first clutch

14

Riser pipe

16

second clutch

18

Filter candle

101

container

102

floor section

104

Side wall

106

Lid section

108

Filling opening

110

Riser opening

112

Screw cap

114

Screw lid opening

116

Filter candle

118

first clutch

120

second clutch

122

Riser pipe

124

sealing ring

Claims (13)

Container (101), preferably a barrel, for medical substances, with a first opening (108), which can be closed by a screw cap (112), and a second opening (110), in which a riser pipe (122) is arranged, thereby characterized in that the screw cap (112) has a screw cap opening (114) in which a first coupling device (118) is arranged, in which in turn a filter device (116) is arranged. container (101). Claim 1 , characterized in that the container (101) has exactly two openings (108, 110). container (101). Claim 1 or 2 , characterized in that the container (101) contains dry concentrate, in particular salts and/or acetate and/or citrate, preferably for the production of dialysis concentrate. Container (101) according to one of the Claims 1 until 3 , characterized in that the first opening (108) is provided for filling the medical substance, preferably dry concentrate, into the container (101) when the screw cap (112) is unscrewed and for removing a fluid from the container (101) when the screw cap (112) is screwed in ( 101), preferably through the screw cap opening (114). Container (101) according to one of the Claims 1 until 4 , characterized in that the first opening (108) and the second opening (110) are each offset with respect to a center of a lid portion (106) of the container (101). Container (101) according to one of the Claims 1 until 5 , characterized in that the first opening (108) has a larger diameter than the second opening (110). Container (101) according to one of the Claims 1 until 6 , characterized in that the screw cap opening (114) of the screw cap (112) and the first opening (108) of the container (101) are arranged concentrically to one another. Container (101) according to one of the Claims 1 until 7 , characterized in that the first opening (108) is a filling opening for filling the medical substances into the container (101). Container (101) according to one of the Claims 1 until 8th , characterized in that the second opening (110) is a riser opening in which a second coupling device (120) is arranged, in which the riser pipe (122) is in turn arranged. container (101). Claim 9 , characterized in that the riser pipe (122) is fixed in position in the second coupling device (120). container (101). Claim 9 or 10 , characterized in that the riser pipe (122) extends from the second coupling device (120) to approximately a bottom section of the container (101). Container (101) according to one of the Claims 1 until 11 , characterized in that the filter device (116) is a filter candle, which is preferably reusable and / or replaceable. Container (101) according to one of the Claims 1 until 12 , characterized in that the screw cap (112) has a sealing ring (124), preferably made of silicone, which seals the first opening (108) when the screw cap (112) is screwed in.

Images