CH634902A5

CH634902A5 - Connector for apparatus intended for introducing a liquid into the human body

Info

Publication number: CH634902A5
Application number: CH296880A
Authority: CH
Inventors: Pierre Guenat
Original assignee: Vifor Sa
Priority date: 1980-04-17
Filing date: 1980-04-17
Publication date: 1983-02-28

Abstract

It comprises two coupling cones (1, 2) fitted with fins (4, 5) housed, in the service position, in a casing (7). This casing comprises elastic strips (11, 11') locking the cones in their coupled position. The casing (7) is fitted with at least one compress (13) for disinfecting the connection. <IMAGE>

Description

**ATTENTION** debut du champ DESC peut contenir fin de CLMS **. ** ATTENTION ** start of the DESC field may contain end of CLMS **.

REVENDICATIONS 1. Raccord pour appareillage destiné à introduire un liquide dans le corps humain, comprenant un cône mâle et un cône femelle destinés à s'emboîter, caractérisé par le fait que les cônes mâle et femelle comportent des ailettes et par le fait qu'il comporte encore une boîte entourant lesdits cônes munis d'un couvercle, cette boîte comportant des moyens de verrouillage des cônes en position accouplée de service. CLAIMS 1. Fitting for apparatus intended to introduce a liquid into the human body, comprising a male cone and a female cone intended to fit together, characterized by the fact that the male and female cones comprise fins and by the fact that it also comprises a box surrounding said cones provided with a cover, this box comprising means for locking the cones in the coupled service position.

2. Raccord selon la revendication 1, caractérisé par le fait que les moyens de verrouillage comportent au moins une lamelle-ressort, venue d'une pièce de fabrication avec la boite, coopérant avec les ailettes des cônes et tendant à maintenir ces cônes en position accouplée de service. 2. Connection according to claim 1, characterized in that the locking means comprise at least one leaf spring, coming from a workpiece with the box, cooperating with the fins of the cones and tending to maintain these cones in position coupled service.

3. Raccord selon la revendication 2, caractérisé par le fait que le fond de la boîte comporte un organe de fixation et de centrage des cônes dans la boîte. 3. Connection according to claim 2, characterized in that the bottom of the box comprises a member for fixing and centering the cones in the box.

4. Raccord selon la revendication 2 ou la revendication 3, caractérisé par le fait qu'il comporte au moins une compresse logée dans la boîte. 4. Connection according to claim 2 or claim 3, characterized in that it comprises at least one compress housed in the box.

5. Raccord selon l'une des revendications I à 4, caractérisé par le fait que la face arrière des ailettes est bombée ou à facettes. 5. Connection according to one of claims I to 4, characterized in that the rear face of the fins is curved or faceted.

6. Raccord selon la revendication 5, caractérisé par le fait que les ailettes présentent une forme générale rectangulaire correspondant à une section transversale de la boîte. 6. Connection according to claim 5, characterized in that the fins have a generally rectangular shape corresponding to a cross section of the box.

7. Raccord selon la revendication 4, caractérisé par le fait que la compresse est désinfectante. 7. Connection according to claim 4, characterized in that the compress is disinfectant.

Dans les appareils de perfusion ou particulièrement pour les appareils utilisés pour une dialyse péritonéale, on utilise des raccords entre notamment une poche contenant un liquide et une tuyauterie flexible et entre cette dernière et une canule ou un cathéter. In perfusion devices or particularly for devices used for peritoneal dialysis, connections are used between in particular a bag containing a liquid and a flexible tubing and between the latter and a cannula or catheter.

Pour ces connexions, on utilise des cônes mâle et femelle s'emboîtant à force qui assurent l'étanchéité et le maintien stérile des appareillages et de leurs contenus. For these connections, male and female push-fit cones are used which ensure the sealing and sterile maintenance of the devices and their contents.

Dans le cas d'appareillage pour la dialyse tout particulièrement, ces connexions sont souvent manipulées et entrent en contact avec la peau du patient. Dans ces conditions, il est difficile avec les connexions existantes d'assurer simultanément une bonne étanchéité et une stérilité parfaite. De plus, ces connexions peuvent provoquer une irritation par frottement mécanique de l'épiderme du patient, ce qui augmente les risques d'infections. In the case of dialysis equipment in particular, these connections are often manipulated and come into contact with the patient's skin. Under these conditions, it is difficult with existing connections to simultaneously ensure good sealing and perfect sterility. In addition, these connections can cause irritation by mechanical friction of the patient's epidermis, which increases the risk of infections.

La présente invention tend à remédier à ces inconvénients et a pour objet un raccord pour appareillage destiné à introduire un liquide dans le corps humain, comprenant un cône mâle et un cône femelle destinés à s'emboîter, caractérisé par le fait que les cônes mâle et femelle comportent des ailettes et par le fait qu'il comporte encore une boîte entourant lesdits cônes munie d'un couvercle, cette boîte comportant des moyens de verrouillage des cônes en position accouplée. The present invention seeks to remedy these drawbacks and relates to a fitting for apparatus intended to introduce a liquid into the human body, comprising a male cone and a female cone intended to fit together, characterized in that the male cones and female comprise fins and by the fact that it also comprises a box surrounding said cones provided with a cover, this box comprising means for locking the cones in the coupled position.

Le dessin annexé illustre schématiquement et à titre d'exemple une forme d'exécution du raccord selon l'invention. The accompanying drawing illustrates schematically and by way of example an embodiment of the connector according to the invention.

La fig. I illustre en perspective la boîte entourant les cônes. Fig. I illustrates in perspective the box surrounding the cones.

La fig. 2 est une vue de dessus du raccord, le couvercle de la boîte étant ouvert. Fig. 2 is a top view of the connector, the cover of the box being open.

La fig. 3 est une coupe longitudinale de la boîte. Fig. 3 is a longitudinal section of the box.

La fig. 4 est une vue en bout de la boite. Fig. 4 is an end view of the box.

Le raccord illustré se compose d'une paire de cônes, l'un mâle 1 et l'autre femelle 2, destinés à s'emboîter et à constituer un raccord pour un tuyau 3,3' sans solution de continuité. De tels cônes de raccords sont bien connus et déjà utilisés dans ce domaine, entre autres, pour raccorder des sacs de solution perfusable à une canule par l'in termédiaire d'un conduit et pour les appareils de dialyse. The illustrated connection is made up of a pair of cones, one male 1 and the other female 2, intended to fit together and to constitute a connection for a 3.3 'pipe with no continuity solution. Such connection cones are well known and already used in this field, inter alia, for connecting bags of infusable solution to a cannula via a conduit and for dialysis machines.

Dans la présente exécution, lesdits cônes 1, 2 présentent la particularité de comporter des ailettes 4, 5 de forme générale rectangulaire, dont les coins sont arrondis et dont la surface arrière 6 est bombée ou dont la section transversale présente la forme générale d'un trapèze. Grâce à ces ailettes, il est plus aisé et plus sûr d'accoupler ou de désaccoupler les cônes, car l'utilisateur dispose d'un point d'appui important bien séparé des parties devant rester stériles, et on évite ainsi toute contamination de l'appareillage. In this embodiment, said cones 1, 2 have the particularity of comprising fins 4, 5 of generally rectangular shape, whose corners are rounded and whose rear surface 6 is curved or whose cross section has the general shape of a trapeze. Thanks to these fins, it is easier and safer to couple or uncouple the cones, because the user has a large support point well separated from the parts which must remain sterile, and this avoids any contamination of the 'equipment.

Le raccord présente encore une boîte 7 munie d'un couvercle 7a injecté en une ou plusieurs pièces en matière plastique. Le couvercle 7a est relié à la boîte par des pattes flexibles 8 formant une charnière et des formations d'encliquetage sont prévues sur la boite et sur le couvercle pour fixer ce dernier en position fermée. The connector also has a box 7 provided with a cover 7a injected in one or more plastic parts. The cover 7a is connected to the box by flexible tabs 8 forming a hinge and snap formations are provided on the box and on the cover to fix the latter in the closed position.

Cette boite comporte, pratiquées dans deux parois latérales oppo suées, des ouvertures 10, dont la dimension correspond à une partie cylindrique de l'arrière des cônes 1, 2. This box comprises, made in two oppo sued side walls, openings 10, the dimension of which corresponds to a cylindrical part of the rear of the cones 1, 2.

Cette boîte comporte encore des moyens de verrouillage desdits cônes en position accouplée. Ces moyens sont constitués par des lamelles-ressorts 11, il', quatre dans l'exemple illustré, solidaires des parois latérales de la boîte et présentant une forme générale cylindrique non fermée. Ces lamelles-ressorts sont donc susceptibles de se déplacer contre leur élasticité propre suivant au moins deux directions orthogonales parallèles aux axes longitudinal et transversal de la boîte. This box also includes means for locking said cones in the coupled position. These means consist of leaf springs 11, it ', four in the example illustrated, integral with the side walls of the box and having a generally cylindrical shape that is not closed. These leaf springs are therefore capable of moving against their own elasticity in at least two orthogonal directions parallel to the longitudinal and transverse axes of the box.

Lorsque deux cônes 1,2 sont accouplés, on introduit ceux-ci dans la boîte, les tuyaux 3, 3' sortant par les ouvertures 10, et les ailettes 4, S sont alors situées entre les lamelles-ressorts il et Il' qui maintiennent les cônes en position accouplée de service et s'opposent par leur élasticité propre à tout déplacement axial de ceux-ci qui compromettrait la stérilité et l'étanchéité du raccord. When two cones 1, 2 are coupled, these are introduced into the box, the pipes 3, 3 ′ leaving through the openings 10, and the fins 4, S are then located between the leaf springs il and Il 'which hold the cones in the coupled service position and are opposed by their own elasticity to any axial displacement thereof which would compromise the sterility and the tightness of the fitting.

Du fait de la forme, bombée ou à facettes, de la face arrière 6 des ailettes 4, 5, l'introduction des cônes accouplés entre les lamelles il et Il' est facilitée et s'effectue par une simple pression des cônes en direction du fond de la boîte. Due to the shape, curved or faceted, of the rear face 6 of the fins 4, 5, the introduction of the cones coupled between the lamellae il and Il 'is facilitated and is carried out by a simple pressure of the cones in the direction of bottom of the box.

Le fond de la boite 7 comporte un organe de fixation et de centrage des cônes en position de service facilitant la manutention du raccord. Cet organe est formé par un clips 12 solidaire du fond de la boîte et venant entourer, par des portions élastiques, le corps du cône mâle I lorsqu'il est en position de service. The bottom of the box 7 comprises a member for fixing and centering the cones in the service position facilitating the handling of the connector. This member is formed by a clip 12 secured to the bottom of the box and surrounding, by elastic portions, the body of the male cone I when it is in the service position.

Enfin, le couvercle 7a comme le fond 7 du boîtier peut porter une compresse 13 destinée à contenir ou à recevoir une solution désinfectante de manière à assurer une bonne protection bactérienne de l'ensemble du raccord une fois fermé. Finally, the cover 7a like the bottom 7 of the housing can carry a compress 13 intended to contain or receive a disinfectant solution so as to ensure good bacterial protection of the entire connection once closed.

Dans une forme d'exécution non illustrée, l'un des cônes pourrait prendre appui contre une paroi latérale du boîtier. Dans ce cas, seule une lame-ressort ou une paire de lames-ressorts serait nécessaire, coopérant avec l'autre cône, pour maintenir les cônes en position ac- couplée de service. In an embodiment not shown, one of the cones could bear against a side wall of the housing. In this case, only one leaf spring or a pair of leaf springs would be necessary, cooperating with the other cone, to keep the cones in the coupled service position.

Ce raccord présente les principaux avantages suivants: I. Il assure une protection mécanique des cônes et les maintient en position accouplée de service par un dispositif de verrouillage. The main advantages of this connection are: I. It provides mechanical protection for the cones and keeps them in the coupled service position by a locking device.

2. Il évite, par la forme arrondie de la boîte, toute blessure ou irritation de la peau du patient, même lorsque celui-ci doit garder ce raccord appliqué contre la peau pendant de longues durées, comme c'est le cas pour la dialyse ambulatoire. 2. It avoids, by the rounded shape of the box, any injury or irritation of the patient's skin, even when the patient must keep this fitting applied against the skin for long periods, as is the case for dialysis ambulatory.

3. La boîte constitue une protection mécanique des cônes d'accouplement et assure la stérilité par le maintien des cônes en position engagée et réduit les risques de contamination de ceux-ci par des agents extérieurs. 3. The box constitutes a mechanical protection of the coupling cones and ensures sterility by keeping the cones in the engaged position and reduces the risks of contamination of these by external agents.

4. La boîte est symétrique, de sorte qu'il est indifférent que le cône mâle soit situé à droite ou à gauche de même que le couvercle de la boîte peut être situé sur ou sous les cônes. Cela facilite grandement la mise en place de la boîte par l'utilisateur. 4. The box is symmetrical, so that it does not matter whether the male cone is located on the right or on the left just as the box cover can be located on or under the cones. This greatly facilitates the installation of the box by the user.

5. On réalise une désinfection du raccord par une ou deux compresses qui sont intégrées à la boîte. On obtient ainsi une meilleure désinfection, une économie de produit de désinfection et une protection du patient contre les taches du produit de désinfection. 5. The fitting is disinfected using one or two pads which are integrated into the box. This results in better disinfection, economy of disinfection product and protection of the patient against stains from the disinfection product.

Claims

CLAIMS 1. Fitting for apparatus intended to introduce a liquid into the human body, comprising a male cone and a female cone intended to fit together, characterized by the fact that the male and female cones comprise fins and by the fact that it also comprises a box surrounding said cones provided with a cover, this box comprising means for locking the cones in the coupled service position.

2. Connection according to claim 1, characterized in that the locking means comprise at least one leaf spring, coming from a workpiece with the box, cooperating with the fins of the cones and tending to maintain these cones in position coupled service.

3. Connection according to claim 2, characterized in that the bottom of the box comprises a member for fixing and centering the cones in the box.

4. Connection according to claim 2 or claim 3, characterized in that it comprises at least one compress housed in the box.

5. The fitting is disinfected using one or two pads which are integrated into the box. This results in better disinfection, economy of disinfection product and protection of the patient against stains from the disinfection product.

** ATTENTION ** end of the CLMS field may contain start of DESC **.

5. Connection according to one of claims I to 4, characterized in that the rear face of the fins is curved or faceted.

6. Connection according to claim 5, characterized in that the fins have a generally rectangular shape corresponding to a cross section of the box.

7. Connection according to claim 4, characterized in that the compress is disinfectant.

In perfusion devices or particularly for devices used for peritoneal dialysis, connections are used between in particular a bag containing a liquid and a flexible tubing and between the latter and a cannula or catheter.

For these connections, male and female push-fit cones are used which ensure the sealing and sterile maintenance of the devices and their contents.

In the case of dialysis equipment in particular, these connections are often manipulated and come into contact with the patient's skin. Under these conditions, it is difficult with existing connections to simultaneously ensure good sealing and perfect sterility. In addition, these connections can cause irritation by mechanical friction of the patient's epidermis, which increases the risk of infections.

The present invention seeks to remedy these drawbacks and relates to a fitting for apparatus intended to introduce a liquid into the human body, comprising a male cone and a female cone intended to fit together, characterized in that the male cones and female comprise fins and by the fact that it also comprises a box surrounding said cones provided with a cover, this box comprising means for locking the cones in the coupled position.

The accompanying drawing illustrates schematically and by way of example an embodiment of the connector according to the invention.

Fig. I illustrates in perspective the box surrounding the cones.

Fig. 2 is a top view of the connector, the cover of the box being open.

Fig. 3 is a longitudinal section of the box.

Fig. 4 is an end view of the box.

The illustrated connection is made up of a pair of cones, one male 1 and the other female 2, intended to fit together and to constitute a connection for a 3.3 'pipe with no continuity solution. Such connection cones are well known and already used in this field, inter alia, for connecting bags of infusable solution to a cannula via a conduit and for dialysis machines.

In this embodiment, said cones 1, 2 have the particularity of comprising fins 4, 5 of generally rectangular shape, whose corners are rounded and whose rear surface 6 is curved or whose cross section has the general shape of a trapeze. Thanks to these fins, it is easier and safer to couple or uncouple the cones, because the user has a large support point well separated from the parts which must remain sterile, and this avoids any contamination of the 'equipment.

The connector also has a box 7 provided with a cover 7a injected in one or more plastic parts. The cover 7a is connected to the box by flexible tabs 8 forming a hinge and snap formations are provided on the box and on the cover to fix the latter in the closed position.

This box comprises, made in two oppo sued side walls, openings 10, the dimension of which corresponds to a cylindrical part of the rear of the cones 1, 2.

This box also includes means for locking said cones in the coupled position. These means consist of leaf springs 11, it ', four in the example illustrated, integral with the side walls of the box and having a generally cylindrical shape that is not closed. These leaf springs are therefore capable of moving against their own elasticity in at least two orthogonal directions parallel to the longitudinal and transverse axes of the box.

When two cones 1, 2 are coupled, these are introduced into the box, the pipes 3, 3 ′ leaving through the openings 10, and the fins 4, S are then located between the leaf springs il and Il 'which hold the cones in the coupled service position and are opposed by their own elasticity to any axial displacement thereof which would compromise the sterility and the tightness of the fitting.

Due to the shape, curved or faceted, of the rear face 6 of the fins 4, 5, the introduction of the cones coupled between the lamellae il and Il 'is facilitated and is carried out by a simple pressure of the cones in the direction of bottom of the box.

The bottom of the box 7 comprises a member for fixing and centering the cones in the service position facilitating the handling of the connector. This member is formed by a clip 12 secured to the bottom of the box and surrounding, by elastic portions, the body of the male cone I when it is in the service position.

Finally, the cover 7a like the bottom 7 of the housing can carry a compress 13 intended to contain or receive a disinfectant solution so as to ensure good bacterial protection of the entire connection once closed.

In an embodiment not shown, one of the cones could bear against a side wall of the housing. In this case, only one leaf spring or a pair of leaf springs would be necessary, cooperating with the other cone, to maintain the cones in the coupled service position.

The main advantages of this connection are: I. It provides mechanical protection for the cones and keeps them in the coupled service position by a locking device.

2. It avoids, by the rounded shape of the box, any injury or irritation of the patient's skin, even when the patient must keep this fitting applied against the skin for long periods, as is the case for dialysis ambulatory.

3. The box constitutes a mechanical protection of the coupling cones and ensures sterility by keeping the cones in the engaged position and reduces the risks of contamination of these by external agents.

4. The box is symmetrical, so that it does not matter whether the male cone is located on the right or on the left just as the box cover can be located on or under the cones. This greatly facilitates the installation of the box by the user.