DE102009026264A1 - filler pipe - Google Patents

Abstract

The present invention relates to a filler neck for filling nutritional solutions into a liquid bag with a tubular base element and a lid hinged thereto, the base element having a connecting section arranged at the end on the outer circumference for fixing an opening of the liquid bag, a cylindrical central region and a conical filler section and the cover essentially corresponds to the outer contour of the overlying inner contour of the base element in the closed state and forms a sealing section together with the central region of the base element. The invention is characterized in that the sealing section on the inner contour of the base region and the outer contour of the cover has at least two opposite sealing lips which form a latching element.

Description

The The present invention relates to a filler neck, in particular for use in medicine and medical technology, which preferably as a component for filling of foil-welded Bags, especially for Mixed bag for parenteral and enteral nutrition are used.

In The medicine, for example, in certain diseases in addition to drug Therapy diets prescribed to promote disease progression. In medicine one differentiates doing basically between oral nutrition (the patient can be on natural Ways, so over to feed the mouth (orally) and artificial nutrition (the Patient can no longer be on natural Eat ways and must therefore be fed artificially). To the artificial Nutrition gives it basically two possibilities, namely enteral nutrition, in which instead of the normal food a suitable for the type of illness special food over a Stomach, small intestine or PEG probe introduced into the digestive tract and the parenteral Nutrition, in which the in solution or Emulsion food components as an infusion over a intravenous Access route be administered directly into the blood. Enteral and parenteral nutrition can can also be combined. Becomes as an exclusive form of nutrition a needs-covering parenteral nutrition Used, one speaks of total parenteral nutrition.

For the enteral nutrition special nutrient solutions are used which the necessary proteins, Carbohydrates, fats, vitamins, minerals and trace elements obtained in optimal composition. Nutrients are not over the Gastrointestinal tract, but by infusion directly into the bloodstream administered (for example in intestinal diseases), one speaks of parenteral nutrition, in which the digestive tract is completely bypassed. parenteral nutrition is especially important for all patients who have one longer Period (3 days and more) are not adequately fed enterally can. Food usually takes place via Special solutions the intravenous be administered and consist essentially of water, electrolytes, Carbohydrates, (mostly in the form of glucose), amino acids, fat and vitamins and trace elements.

The aforementioned special solutions or liquids become a diet bottled by patients in bags, for their filling the use of filler neck known in the art.

there become the filler neck preferably in the welding process, in particular in the high frequency welding process connected to the bag and delivered as ready-to-use systems to hospitals, for example, where these then as needed with the appropriate fluids filled become. In addition to the ease of filling the bag puts it the filler neck ready for other properties with which the bag, for example after filling can be closed. However, it is of particular importance that the filled and sealed bag prevent leakage of the liquid and also unintentional opening the bag is avoided. Furthermore, the tightness of the filling nozzle should be so high in the closed state that even when stacking the filled Bag leakage of the liquid is prevented.

task The present invention is a filler neck or a bag with filler neck to provide essentially the aforementioned problems at least partially dissolves and thus an improved applicability for the use of these in the Medical or medical technology provides.

The The above object is achieved by a filler neck according to claim 1 solved. Preferred embodiments the filler neck according to the invention are the subject of the dependent claims.

Of the inventive filler neck for filling in Nutritional Solutions in a fluid bag consists in particular of a base element which the liquid bag over the Base element with the closure lid at least liquid-tight combines. Among nutrition solutions in the For the purposes of the present invention, all types of specific Understood nutrient solutions that to serve a patient.

At the end on the outer circumference the base element arranged connecting portion, the liquid bag according to the invention in particular using high-frequency welding fixed and thus at least liquid-tight connected to the base element.

Of the conical filling section of the base member is characterized by a tapered diameter, which the filling by introducing a filling nozzle in the liquid bag facilitated.

The According to the invention closed state superimposed outer contour the lid with the inner contour of the base member forms a part of the seal of the liquid bag.

The lid is fixed to the base member with an articulated connection, which dictates the direction of movement and the radius of action and a safe and easy-to-use handling.

Of the sealing central area of the lid and the base element consists according to the invention from a Sealing lip of the lid and sealing lips of the base element, thereby formed in a preferably cylindrical region of the sealing portion which works on the principle of a labyrinth seal and at least one liquid density Sealing the liquid bag with nutritional solution allows.

According to one particularly preferred embodiment includes the filler neck in particular in the region of the sealing portion, the function of a locking element and a seal. For example, this latching mechanism slides while of the closing process due to the flexible materials, the sealing lip of the lid over the Sealing lip of the base element and locks in the closed state behind this sealing lip of the base element. This will be the Lid fixed and sealed according to the principle of a labyrinth seal.

Of course it lies It also in the sense of the present invention, the arrangement of the sealing lips between cover and base element to change or exchange.

According to one particularly preferred embodiment is the filler neck characterized in that in the closed state, the lid with its radially encircling groove the end edge of the base member receives, which in particular provides additional tightness becomes.

According to the present Invention, the lid in the closed state in addition to be closed a fuse element. For this additional Protection of the liquid bag before accidental opening In particular, a flap attached to the lid is stretched, in a recess attached to the base element of a counter element guided and locked there. This arrangement can be between the lid and Base element in particular reversed and adapted.

According to one another, preferred embodiment the seal is carried out by several sealing areas. To do this the sealing lips formed by a sealing body, wherein the sealing lips have at least two different heights in the sealing area and the sealing lips, in particular in two areas, the cylindrical Center region and a cylindrical portion of the lid arranged are according to one Another particularly preferred embodiment, the Sealing lips are also arranged in the area of the cone-shaped section, in which case in particular the shape of the sealing lip on the corresponding adapt opposite surface is.

Corresponding another embodiment the wall of the lid and / or base element is preferably in the cylindrical central region of different strengths and in particular stepped.

The Sealing lips of the lid and / or base element are according to a another embodiment arranged on different levels of the wall and the sealing portion is designed in particular as a labyrinth seal.

According to one another, preferred embodiment the at least liquid-tight fixation takes place of the liquid bag on the base element, in particular by means of high-frequency welding.

Corresponding The present invention is at least individual parts of the filler neck according to the invention formed of at least one material, which consists of a group selected is what duro- and thermoplastic and in particular Polyphenylene sulfide, polypropylene, poly-1-butene, polyvinyl chloride, Polyvinylidene chloride, polymethyl methacrylate, polyacrylonitrile, polystyrene, Polysulfone, polyacetal, polyvinyl alcohol, polyvinyl acetate, ethylene-vinyl acetate (EVA), ethylene-vinyl acetate copolymer (EVAC) such as Elvax or Evatane, ionomers, fluoroplastic, Polyethylene, polyamide, in particular a partially aromatic polyamide, polycarbonate, Polyester, polyphenylene oxide, polysulfone, polyvinyl acetal, polyurethane, and chlorinated polyether, cellulose nitrate, cellulose acetate, cellulose ethers, Phenolic resin, urea resin, Thiourea resin, melamine resin, alkyl resin, allyl resin, silicone, Polyimide, polybenzimidazole, epoxy resin, casein plastic, cross-linked Polyurthane, unsaturated polyester resin, Combinations thereof and the like.

According to one another, preferred embodiment of the filler neck serves at least one component of the plastic as a color carrier. Such a color carrier may in particular be an EVA or EVAC and serves in particular the possible uniform coloring of the component.

In Another particularly preferred embodiment is the filler neck characterized in that the inner diameter in the base element the end-side filling section by 1% to 100%, preferably by 5% to 50% and in particular by approx. 10% larger as the inner diameter of the base member in the fixing portion.

According to another, particularly preferred Th execution, the filler neck is characterized in that the cylindrical end edge and the radially circumferential groove non-positively and / or positively connected and in particular form a further sealing portion.

In Another particularly preferred embodiment is the filler neck characterized in that the base element is a support element, in particular a carrying strap is arranged. This or this allows both an easy-to-use transport as well as a hanging storage with the filler neck connected liquid bag.

According to one Another, particularly preferred embodiment is the filler neck characterized in that the lid is formed as a hollow shape is and in particular at least one sealing lip in the region of the lid surface or -wandung is arranged, which radially with the tubular base element in the closed State works together and completes this. The purpose of this arrangement exists u. a. in the additional Sealing by means of the interaction between the in the radial direction rigid lid base and the one with the wall of the base element in Contact standing sealing lip.

The The present invention also further comprises the use of the filler neck according to the invention in medicine and medical technology, especially for patient care using nutrient solutions and Liquids, especially for the enteral and parental nutrition, Probe and / or infusion dosing systems and combinations thereof and the same.

The Invention will be described below with reference to a preferred embodiment explains It should be noted that modifications are made by this example or supplements like she herself for the person skilled in the art immediately following with are comprehensive. Furthermore represents this preferred embodiment no restriction of Invention, so that also modifications and additions within the scope of the present Invention lie.

there demonstrate:

1 Page display of the filler neck,

2 Top view of the filler neck,

3 Sectional view of a filler neck according to the invention and

4 a detailed representation of the sealing portion, according to 3 Area X

1 shows a side view of the filler neck according to the invention 1 , which predominantly covers the areas 2 and base element 3 is divided. The lid 2 is with the base element 3 articulated over the connecting strap 6 connected to the reference numeral 6 ' having a predetermined bending point. For transport and suspension of the liquid bag is a carrying loop 16 at the base element 3 attached. In the closed state, the groove engages in the edge of the lid 2 ' in the final edge 12 of the base element 3 , Further features of the filler neck are described in the following figures.

2 shows a plan view of the filler neck 1 , The connecting strap 6 between the lid 2 and the base element 3 has in the middle a web with the predetermined bending point 6 ' on. For securing the lid 2 is the retaining tongue 9 with a grip area 9A and the locking counterpart 9 ' the retaining tongue to recognize, in the closed state of the filler neck 1 in the counter element 8th introduced to the retaining tongue and the locking portion 9B behind the noses 8th' of the counter element 8th is locked.

3 shows a sectional view of the filler neck 1 , the one not shown, on the base element 3 fixed liquid bag with the lid 2 at least liquid-tight connects or closes in the closed state.

The lid 2 has an annular circumferential groove, a retaining tongue 9 an upper cylindrical lid section 13 , a central conical lid section 14 , a cylindrical cover section 15 and the lid bottom 11 on.

The basic element 3 has at the upper end, according to the embodiment shown here, a radially encircling end edge 12 on. In the lower part of the liquid bag, not shown in the fixing section 4 fixed for example by means of high frequency welding.

In the illustrated closed state of the filler neck 1 grips the annular end edge 12 of the base member in the annular groove of the lid 2 a, centered and fixed the lid with respect to position and position and preferably forms a further seal for the filler neck.

The basic element 3 know a not completely shown connection tab 6 to the lid 2 , as well as a counter element to the retaining tongue 8th on. With the connecting strap 6 is the lid 2 at the base element 3 hinged, which in particular a lack of the lid 2 Prevented and a user-friendly closure is provided. The securing of the lid 2 done by stretching the retaining tongue 9 , Inserting this in the recess of the counter element to the retaining tongue 9 and Locking the tongue behind the counter element to the retaining tongue 9 attached noses 8th' ,

The middle section 5 of the base element 3 lies the lower cylindrical lid section 15 in the closed state parallel opposite and is in 4 shown in detail.

The middle section 5 of the base element is as in 4 shown in a lower, first wall section 5 ' and an upper, second wall portion 5 '' divided, wherein the wall thickness of the first wall portion 5 '' larger than in the second wall section 5 '' ,

In the lower, first wall section 5 ' there is an annular circumferential third sealing lip 20 , which in the closed state, the wall of the lower cylindrical cover portion 15 at the level of the lid bottom 11 sealingly touched. This, in the closed state, targeted positioning allows rigidity, which contributes to the achievement of a first tightness.

In the upper, second wall section 5 '' are two other annular sealing lips 21 . 22 appropriate. In the closed state is located between this first sealing lip 22 and second sealing lip 23 opposite to the lower cylindrical cover portion 15 of the lid 2 , an annular circumferential sealing lip 23 of the lid. This arrangement of the seal combination corresponds to the principle of a labyrinth seal.

According to the present embodiment, this labyrinth seal is an additional sealing ring 20 upstream of the fluid-filled bag.

The advantage of this system is an improved tightness even with non-round lid 2 and / or base element 3 , For example, caused by fixing the liquid bag to the base member 3 in the fixing section 4 in particular by means of high frequency welding (not shown), stacking the liquid bag, etc.

When closing the liquid bag slips due to the elastic materials, the annular sealing lip of the lid 23 via the second annular sealing lip of the base element 22 , whereby a kind of locking element is formed and the lid 2 additionally held in position.

LIST OF REFERENCE NUMBERS

1

filler pipe

2

cover

2 '

groove in the lid margin

3

base element

4

fixing

5

midsection

6

connecting strap

6 '

web for the Bending point of the connecting strap

7

conical filling section

8th

counter-element to the retaining tongue

8th'

nose of the counter element to the retaining tongue

9

holding tongue

9 '

Arretiergegenstück the retaining tongue

9A

grip area

9B

detent portion

11

cover ground

12

terminal edge

13

upper cylindrical lid section

14

middle conical lid section

15)

lower cylindrical lid section

16

Wrist strap

5 '

first wall section

5 ''

second wall section

20

third sealing lip

21

first sealing lip

22

second sealing lip

23

sealing lip

Claims (17)

Filler neck ( 1 ) for filling nutritional solutions into a fluid pouch having a tubular base member ( 3 ) and a hinged thereto lid ( 2 ), wherein the base element ( 3 ) an end portion arranged on the outer peripheral connecting portion for fixing an opening of the liquid bag, a cylindrical central region ( 5 ) and a cone-shaped filling portion and the lid ( 2 ) substantially with the outer contour of the overlapping inner contour of the base element ( 3 ) in the closed state and forms together with the central region of the base member a sealing portion, characterized in that the sealing portion on the inner contour of the base portion and the outer contour of the lid has at least two opposite sealing lips, which form a locking element. filler pipe according to claim 1, characterized in that the base element to the connecting element opposite End portion a radially encircling, preferably cylindrical end edge having. Filler neck according to claim 2, characterized in that the cover a radially encircling groove ( 2 ' ) for receiving the end edge ( 12 ) having. Filler neck according to one of the preceding claims, characterized in that the De ckel ( 2 ) and the base element ( 3 ) with a fuse element ( 6 ), such as a tab, a tongue or the like can be connected, which prevents accidental opening. filler pipe according to one the preceding claims, characterized in that the central region is substantially cylindrical accomplished is. filler pipe according to one the preceding claims, characterized in that the sealing lips formed by a sealing body and in particular has at least two different heights. Filler neck according to one of the preceding claims, characterized in that the sealing lips in the cylindrical central region ( 5 ) and a cylindrical portion of the lid are arranged. Filler neck according to one of the preceding claims, characterized in that the wall of the lid and / or the base element preferably in the cylindrical central region ( 5 ) is executed differently strong and in particular stepped. Filler neck according to claim 8, characterized in that the sealing lips of the lid ( 2 ) and / or the base element ( 3 ) are arranged on different stages of the wall. filler pipe according to one the preceding claims, characterized in that the sealing portion as a labyrinth seal is formed. filler pipe according to one the preceding claims, characterized in that the liquid bag with the connecting portion welded to the base element, is connected in particular by means of high frequency welding. filler pipe according to one the preceding claims, characterized in that the filler neck of at least one Material is prepared which is selected from a group which duroplastic and thermoplastic plastic and in particular polyphenylene sulfide, Polypropylene, poly-1-butene, polyvinyl chloride, polyvinylidene chloride, Polymethyl methacrylate, polyacrylonitrile, polystyrene, polysulfone, Polyacetal, polyvinyl alcohol, polyvinyl acetate, ethylene-vinyl acetate (EVA), ethylene-vinyl acetate copolymer (EVAC) such as Elvax or Evatane, ionomers, fluoroplastic, polyethylene, polyamide, especially a partially aromatic polyamide, polycarbonate, polyester, Polyphenylene oxide, polysulfone, polyvinyl acetal, polyurethane, and chlorinated polyether, cellulose nitrate, cellulose acetate, cellulose ethers, Phenolic resin, urea resin, thiourea resin, melamine resin, alkyl resin, Allyl resin, silicone, polyimide, polybenzimidazole, epoxy resin, casein plastic, crosslinked polyurthane, unsaturated polyester resin, Combinations thereof and the like. filler pipe according to claim 12, characterized in that the at least one component of the plastic as a color carrier serves. filler pipe according to one the preceding claims, characterized in that the inner diameter of the end-side Filling section around 1% to 100%, preferably by 5% to 50% and in particular by approx. 10% larger as the inner diameter of the fixing section. Filler neck according to one of the preceding claims, characterized in that the cylindrical firing edge ( 12 ) and the radial circumferential groove ( 2 ' ) are positively and / or positively connectable and in particular form a further sealing portion. Filler neck according to one of the preceding claims, characterized in that on the base element a supporting element, in particular a carrying loop ( 16 ) is arranged. filler pipe according to one the preceding claims, characterized in that the lid is formed as a hollow shape is and in particular at least one sealing lip in the region of the lid surface or is disposed, which radially terminates the tubular base member.

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