FR2590167A1 - Joining piece for coupling a bag for liquid and its method and manufacture - Google Patents

Joining piece for coupling a bag for liquid and its method and manufacture Download PDF

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Publication number
FR2590167A1
FR2590167A1 FR8517179A FR8517179A FR2590167A1 FR 2590167 A1 FR2590167 A1 FR 2590167A1 FR 8517179 A FR8517179 A FR 8517179A FR 8517179 A FR8517179 A FR 8517179A FR 2590167 A1 FR2590167 A1 FR 2590167A1
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FR
France
Prior art keywords
tube
diaphragm
bag
sheet
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8517179A
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French (fr)
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FR2590167B1 (en
Inventor
Alexandre Wolkonsky
Pascal Deloye
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PARIS CHEMICAL
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PARIS CHEMICAL
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Filing date
Publication date
Application filed by PARIS CHEMICAL filed Critical PARIS CHEMICAL
Priority to FR8517179A priority Critical patent/FR2590167B1/en
Publication of FR2590167A1 publication Critical patent/FR2590167A1/en
Application granted granted Critical
Publication of FR2590167B1 publication Critical patent/FR2590167B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/10—Bag-type containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags

Abstract

Method of manufacturing a joining piece for coupling a bag for liquid comprising a plastic diaphragm 9 and a sterile protection of the external joining piece 2, characterised in that three components are prepared which consist of two tube segments 1, 2 and a rectangular plasticised PVC sheet 3, in that these components are placed in high-frequency welding electrodes defining a circular narrowing 8 intended to facilitate tearing off, in that after welding, the two ends of the rectangular sheet 3 are folded against each other above one of the joining pieces 2 and in that these ends are welded together using a U-shaped weld 11, and finally in that the other tube segment 1 is connected directly or indirectly to the bag for liquid before sterilising the latter.

Description

Embout de couplage de poche à liquides et son procédé de fabrication.Coupling nozzle for liquid bag and its manufacturing process.

L'invention concerne les embouts de couplage montes sur les poches plastiques a liquides lors de la fabrication de ces poches et permettant de faire sortir ou de faire rentrer dans ces poches des liquides stériles. The invention relates to coupling ends mounted on plastic liquid bags during the manufacture of these bags and allowing sterile liquids to exit or return to these pockets.

Ce type d'embout est à distinguer des embouts d'injection comportant un septum en élastomère au silicone destiné à être perforé par une aiguille à injection pour l'injection d'un liquide, cette aiguille étant ensuite extraite sans perte de liquide grâce à la propriété auto-occlusive de l'élastozere utilise. En effet, ces embouts d'injection sont beaucoup plus delicats et plus onereux que les embouts du premier type et ils ne tolèrent que des traversées de faible calibre.Au contraire, les embouts du type concerné comportent un diaphragme en matière plastique, généralement en PVC plastifié, ce diaphrame étant destiné à etre percé par un perforateur de gros calibre qui, d'une part, n'a plus à être retiré par la suite et, d'autre part, assure son étanchéité avec l'embout par emmanchement direct sur un tube de PVC qui précède le diaphragme. Pour cette raison, les poches considérées comportent souvent des embouts des deux types. This type of tip is to be distinguished from the injection tips comprising a septum made of silicone elastomer intended to be punctured by an injection needle for injecting a liquid, this needle then being extracted without loss of liquid thanks to the self-occlusive property of the elastozere used. In fact, these injection nozzles are much more delicate and more expensive than the nozzles of the first type and they only tolerate small caliber bushings. On the contrary, the nozzles of the type concerned include a plastic diaphragm, generally made of PVC. plasticized, this diaphragm being intended to be pierced by a large-caliber perforator which, on the one hand, no longer has to be removed later and, on the other hand, ensures its tightness with the endpiece by direct fitting onto a PVC tube which precedes the diaphragm. For this reason, the pockets considered often have tips of both types.

Parmi les embouts du type considéré, les plus connus comprennent une pièce moulée de révolution à section longitudinale en H, c'est-àdire un tube operculé en son milieu qui est resoudé ou collé a cheval sur la poche. L'extrémité du tube extérieure#a la poche est protégée intérieurement et extérieurement contre la perte de stérilité, soit par un tube plastique emmanché qui s'enlève par retournement, soit par un sachet en plastique dont les soudures sont imparfaites pour qu'on puisse l'ouvrir en écartant les bords de la feuille plastique. Among the end caps of the type under consideration, the most well-known comprise a molded part of revolution with a longitudinal H-shaped section, that is to say a tube sealed in the middle which is welded or glued astride the pocket. The end of the outer tube # to the pocket is protected internally and externally against loss of sterility, either by a fitted plastic tube which is removed by inversion, or by a plastic bag whose welds are imperfect so that we can open it by spreading the edges of the plastic sheet.

Ces divers dispositifs sont assez peu pratiques à fabriquer et surtout à utiliser. These various devices are quite impractical to manufacture and especially to use.

Le but de l'invention est de réaliser un embout de ce type, mais qui soit d'une fabrication simple, tant de l'embout que de son diaphragme et de sa protection stérile, et d'un emploi très facile par l'utilisateur.  The object of the invention is to produce a nozzle of this type, but which is of simple manufacture, both of the nozzle and of its diaphragm and of its sterile protection, and of very easy use by the user. .

L'invention consiste a partir de deux tronçons de tube de plastique de même diamètre et d'un petit rectangle découpé dans une feuille de matière plastique de même nature, à souder ces deux tron ,cons de tube de part et d'autre de la feuille rectangulaire sensiblement au milieu de celle-ci par soudure haute fréquence et a l'aide d'électrodes de forme appropriée, à ménager grâce à la forme de ces électrodes, une amorce de rupture par une zone d'amincissement circulaire de la feuille rectangulaire autour de la soudure, ensuite à replier les deux moities de la feuille rectangulaire l'une sur l'autre au-dessus d'un des tronçons de tube et à les souder par haute fréquence à l'aide d'une soudure en forme de U enfermant complètement ce tronçon de tube de manière étanche, enfin a raccorder l'autre extrémité de tube sur la poche, directement lors de la soudure ou collage de celle-ci ou dans un tube intermédiaire préalablement soudé sur la poche, et ceci de telle manière que l'utilisateur puisse retirer la protection stérile par simple traction avant d'enfoncer le perforateur usuel dans le tube extérieur pour perforer la partie de la feuille plastique restant a l'intérieur de la section. The invention consists of welding two sections of plastic tube of the same diameter and a small rectangle cut from a sheet of plastic material of the same kind, to weld these two sections, cons of the tube on either side of the rectangular sheet substantially in the middle thereof by high frequency welding and using appropriately shaped electrodes, to provide, thanks to the shape of these electrodes, a breaking point by a circular thinning zone of the rectangular sheet around the weld, then fold the two halves of the rectangular sheet one over the other over one of the tube sections and weld them by high frequency using a weld in the form of U completely enclosing this section of tube in a sealed manner, finally connecting the other end of the tube to the pocket, directly during the welding or gluing of the latter or in an intermediate tube previously welded on the pocket, and this in such a way so that the user can remove the sterile protection by simple pull before inserting the usual perforator into the outer tube to perforate the part of the plastic sheet remaining inside the section.

D'autres particularités de l'invention apparaîtront dans la description qui va suivre d'un mode de réalisation pris comme exemple et représenté sur le dessin annexé, sur lequel
la figure 1 représente en perspective les trois composants initiaux;
la figure 2 représente en coupe les composants assemblés et les deux électrodes de soudure;
la figure 3 représente en perspective l'ensemble obtenu après la première soudure;
les figures 4 et 5 sont des vues extérieures de face et de profil de l'embout après repliage et exécution de la deuxième soudure;
la figure 6 illustre la première phase de l'utilisation de la poche; et
la figure 7 la phase d'enfoncement du perforateur.Other features of the invention will appear in the following description of an embodiment taken as an example and shown in the accompanying drawing, in which
Figure 1 shows in perspective the three initial components;
Figure 2 shows in section the assembled components and the two welding electrodes;
Figure 3 shows in perspective the assembly obtained after the first weld;
Figures 4 and 5 are external front and side views of the tip after folding and performing the second weld;
FIG. 6 illustrates the first phase of the use of the bag; and
Figure 7 the penetration phase of the perforator.

Les figures 1 a 5 illustrent clairement les phases essentielles de la fabrication de l'embout. On y voit les deux tronçons 1 et 2 de tube en PVC ou EVA plastifié et la feuille rectangulaire 3 en cette même matière. Ces composants, dont le découpage est extrêmement simple, sont ensuite introduits dans le dispositif de soudage 4 représenté en coupe sur la figure 2. Ce dernier comprend deux électrodes 5 de révolution qui comportent chacune un alésage axial 6 d'un diamètre approprié pour recevoir le tronçon de tube 1 ou 2 correspondant, et une broche intérieure 7 s'ajustant a l'intérieur de ce tronçon de tube. Figures 1 to 5 clearly illustrate the essential phases of the manufacture of the nozzle. We can see the two sections 1 and 2 of plasticized PVC or EVA tube and the rectangular sheet 3 made of this same material. These components, the cutting of which is extremely simple, are then introduced into the welding device 4 shown in section in FIG. 2. The latter comprises two electrodes 5 of revolution which each have an axial bore 6 of a diameter suitable for receiving the tube section 1 or 2 corresponding, and an inner pin 7 fitting inside this tube section.

Les deux surfaces en regard des deux électrodes 5 et de leur broche 7 sont usinées avec précision de manière à définir dans la zone circulaire 8 un amincissement suffisant de la feuille 3 pour permettre ultérieurement une rupture par traction, et par ailleurs une partie intérieure 9 constituant le diaphragme proprement dit et dont l'épaisseur peut etre celle désirée, égale ou différente de celle de la feuille 3. The two facing surfaces of the two electrodes 5 and their spindle 7 are machined with precision so as to define in the circular area 8 a sufficient thinning of the sheet 3 to allow subsequent rupture by traction, and moreover an inner part 9 constituting the diaphragm proper and whose thickness may be that desired, equal to or different from that of the sheet 3.

Les électrodes sont montées sur un dispositif haute fréquence et, après mise en place des trois composants 1, 2 et 3, on produit le rapprochement précis des deux électrodes et de leur broche jusqu'a une cote predéfinie qui détermine notamment l'épaisseur voulue pour les amincissements 8, et ceci en meme temps que l'on fait agir l'alimentation haute fréquence qui produit la fusion partielle des éléments permettant leur soudure. The electrodes are mounted on a high frequency device and, after the three components 1, 2 and 3 have been put in place, the two electrodes and their pin are brought together precisely to a predefined dimension which in particular determines the thickness desired for the thinnings 8, and this at the same time as the high-frequency power supply is activated, which produces the partial fusion of the elements allowing their welding.

Après refroidissement, on écarte les électrodes et l'on obtient le produit intermédiaire représenté sur la figure 3. After cooling, the electrodes are removed and the intermediate product shown in FIG. 3 is obtained.

Les deux extrémités de la feuille rectangulaire 3 sont alors rabattues l'une contre l'autre et contre l'embout 2 comme schématisé par les flèches 10, ce que permet la souplesse du matériau. On place alors le tout entre d'autres électrodes de soudure à configuration en
U qui produisent la soudure 11 qui ferme la feuille sur les trois bords, constituant ainsi la protection étanche de l'embout 2 permettant ultérieurement le maintien de la stérilité et de la propreté à l'intérieur du sachet 3.The two ends of the rectangular sheet 3 are then folded against each other and against the end piece 2 as shown schematically by the arrows 10, which allows the flexibility of the material. The whole is then placed between other welding electrodes with configuration in
U which produce the weld 11 which closes the sheet on the three edges, thus constituting the sealed protection of the end piece 2 subsequently allowing sterility and cleanliness to be maintained inside the bag 3.

En même temps, cette électrode de soudure réalise dans la zone 12 des stries transversales facilitant l'agrippement des doigts de
L'embout ainsi fabriqué est monté sur la poche à liquides, soit par soudure directe ou collage de son tronçon 1 entre les deux feuilles de PVC ou EVA constituant la poche, soit indirectement par soudure ou collage dans un tronçon de tube intermédiaire 14 lui-même soudé ou collé sur le corps de pocha.At the same time, this welding electrode makes in the zone 12 transverse ridges facilitating the gripping of the fingers of
The nozzle thus produced is mounted on the liquid bag, either by direct welding or bonding of its section 1 between the two sheets of PVC or EVA constituting the bag, or indirectly by welding or bonding in a section of intermediate tube 14 itself even welded or glued to the body of pocha.

Lors de l'utilisation, il suffit d'agripper entre le pouce et l'index la partie 12 du sachet 3 et de tirer dans le sens de la flèche 15 sur la figure 6 pour produire la séparation de cette protection le long de la zone de déchirure 8, le diaphragme 9 continuant à obturer intérieurement le passage. On perce alors ce diaphragme a l'aide d'un perforateur 16 que l'on enfonce a travers le tube 2, le diaphragme 9, puis le tube 1 dans le prolongement du premier pour déboucher a l'intérieur de la poche 13. During use, it suffices to grip between the thumb and the index finger the part 12 of the bag 3 and to pull in the direction of the arrow 15 in FIG. 6 to produce the separation of this protection along the zone tear 8, the diaphragm 9 continuing to internally close the passage. This diaphragm is then pierced using a perforator 16 which is inserted through the tube 2, the diaphragm 9, then the tube 1 in the extension of the first to open into the pocket 13.

Selon les utilisations, irrigations, perfusions ou transfusions par exemple, on peut avoir besoin de longueurs de tube différentes, notamment pour les parties 1 et éventuellement 14, ce qui s'obtient facilement grâce au procédé indiqué sans modification d'outillage. According to the uses, irrigations, perfusions or transfusions for example, one can need different lengths of tube, in particular for the parts 1 and possibly 14, which is easily obtained thanks to the process indicated without modification of tooling.

L'embout obtenu est donc particulièrement économique, efficace, bien protégé de manière étanche et stérile et d'un emploi extrêmement facile.  The tip obtained is therefore particularly economical, effective, well sealed and sterile and extremely easy to use.

Claims (5)

REVENDICATIONS 1. Procédé de fabrication d'un embout de couplage de poche à liquides comprenant un diaphragme plastique (9) et une protection stérile intérieure et extérieure de l'embout extérieur (2), 1. Method for manufacturing a coupling coupling pocket for liquids comprising a plastic diaphragm (9) and sterile internal and external protection of the external coupling (2), caractérisé par le fait characterized by the fact que l'on prépare trois composants constitués par deux tronçons (1, 2) de tube en PVC plastifié et une feuille rectangulaire (3) également en PVC plastifié, that three components are prepared consisting of two sections (1, 2) of plasticized PVC tube and a rectangular sheet (3) also of plasticized PVC, que l'on place ces composants dans des électrodes de soudure à haute fréquence (5, 7) comportant chacune un alésage central (6) pour le tronçon de tube correspondant et une broche (7) pénétrant à l'intérieur de ce tronçon, et des surfaces en regard définissant une zone d'amincissement circulaire (8) destiné à faciliter la déchirure, et l'épaisseur du diaphragme (9) constitué par la partie centrale de la feuille (3), that these components are placed in high frequency welding electrodes (5, 7) each comprising a central bore (6) for the corresponding section of tube and a spindle (7) penetrating inside this section, and facing surfaces defining a circular thinning zone (8) intended to facilitate tearing, and the thickness of the diaphragm (9) constituted by the central part of the sheet (3), qu'après soudure, on replie les deux extrémités de la feuille rectangulaire (3) l'une contre l'autre et par-dessus l'un des embouts (2) et que l'on soude entre elles ces extrémités à l'aide d'une soudure à haute fréquence en U (11), that after welding, the two ends of the rectangular sheet (3) are folded back against each other and over one of the end pieces (2) and these ends are welded together using a high frequency U-shaped weld (11), enfin que l'on raccorde l'autre tronçon de tube (1), directement ou indirectement, sur la poche à liquides (13) avant sa stérilisation. finally that the other section of tube (1) is connected, directly or indirectly, to the liquid bag (13) before sterilization. 2. Procédé selon la revendication 1, caractérisé par le fait que l'extrémité de la soudure en U (11) se complète par une série de stries (12) facilitant l'agrippement. 2. Method according to claim 1, characterized in that the end of the U-shaped weld (11) is completed by a series of grooves (12) facilitating the gripping. 3. Embout résultant de la mise en oeuvre du procédé selon une des revendications 1 et 2, et caractérisé par le fait qu'il comporte un diaphragme intérieur (9), avec deux tronçons de tube (1, 2) soudés dans le prolongement de part et d'autre de ce diaphragme, et une feuille (3) située dans le prolongement du diaphragme (9) et repliée sur elle-même pour constituer un sachet protecteur étanche au-dessus d'un des embouts (2), avec une zone d'affaiblissement (8) entourant complètement les tronçons de tube à l'entour du diaphragme (9). 3. End piece resulting from the implementation of the method according to one of claims 1 and 2, and characterized in that it comprises an internal diaphragm (9), with two sections of tube (1, 2) welded in the extension of on either side of this diaphragm, and a sheet (3) located in the extension of the diaphragm (9) and folded back on itself to form a waterproof protective bag above one of the end pieces (2), with a weakened zone (8) completely surrounding the tube sections around the diaphragm (9). 4. Embout selon la revendication 3, caractérisé par le fait que sa protection étanche (3) comporte dans son extrémité une zone (12) striée.  4. End piece according to claim 3, characterized in that its waterproof protection (3) comprises at its end a striated zone (12). 5. Poche à liquides (13) équipée de l'embout selon une des revendications 3 et 4.  5. Liquid bag (13) equipped with the nozzle according to one of claims 3 and 4.
FR8517179A 1985-11-20 1985-11-20 COUPLING POUCH FOR LIQUID POCKET AND MANUFACTURING METHOD THEREOF Expired FR2590167B1 (en)

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Application Number Priority Date Filing Date Title
FR8517179A FR2590167B1 (en) 1985-11-20 1985-11-20 COUPLING POUCH FOR LIQUID POCKET AND MANUFACTURING METHOD THEREOF

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Application Number Priority Date Filing Date Title
FR8517179A FR2590167B1 (en) 1985-11-20 1985-11-20 COUPLING POUCH FOR LIQUID POCKET AND MANUFACTURING METHOD THEREOF

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FR2590167A1 true FR2590167A1 (en) 1987-05-22
FR2590167B1 FR2590167B1 (en) 1988-02-05

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327709A (en) * 1962-07-19 1967-06-27 Becton Dickinson Co Transfusion and blood storage set
GB2030956A (en) * 1978-09-13 1980-04-16 Gambro Dialysatoren Connection nipple for bags

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327709A (en) * 1962-07-19 1967-06-27 Becton Dickinson Co Transfusion and blood storage set
GB2030956A (en) * 1978-09-13 1980-04-16 Gambro Dialysatoren Connection nipple for bags

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