FR2797190A1 - NIPPED TAP FOR MEDICAL INSTRUMENTS AND DEVICES - Google Patents

NIPPED TAP FOR MEDICAL INSTRUMENTS AND DEVICES Download PDF

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Publication number
FR2797190A1
FR2797190A1 FR0009970A FR0009970A FR2797190A1 FR 2797190 A1 FR2797190 A1 FR 2797190A1 FR 0009970 A FR0009970 A FR 0009970A FR 0009970 A FR0009970 A FR 0009970A FR 2797190 A1 FR2797190 A1 FR 2797190A1
Authority
FR
France
Prior art keywords
housing
flexible pipe
pinch valve
stop member
support
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.)
Withdrawn
Application number
FR0009970A
Other languages
French (fr)
Inventor
Helmut Heckele
Friedrich Haehnle
Mark Freier
Martin Seebach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Richard Wolf GmbH
Original Assignee
Richard Wolf GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Richard Wolf GmbH filed Critical Richard Wolf GmbH
Publication of FR2797190A1 publication Critical patent/FR2797190A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means
    • F16K7/063—Lever clamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/72—Cassettes forming partially or totally the fluid circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/741—Suction control with means for varying suction manually
    • A61M1/7413—Suction control with means for varying suction manually by changing the cross-section of the line
    • A61M1/7415—Suction control with means for varying suction manually by changing the cross-section of the line by deformation of the fluid passage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • A61M1/774—Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0201—Cassettes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/741—Suction control with means for varying suction manually
    • A61M1/7413—Suction control with means for varying suction manually by changing the cross-section of the line
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0204—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity
    • A61M3/0208—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity before use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0204—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity
    • A61M3/022—Volume; Flow rate

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Mechanical Engineering (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Pipe Accessories (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un robinet à pincement pour instruments et appareils médicaux, servant à commander l'écoulement dans un tuyau souple (11). Le tuyau souple (11), situé dans un boîtier (3), est, pour l'arrêt de l'écoulement, déformé élastiquement et écrasé à l'aide d'un organe d'arrêt (14) s'appliquant de l'extérieur sur le tuyau souple, sous la précontrainte d'un ressort, et l'organe d'arrêt, pour la libération de l'écoulement, est déplaçable par actionnement d'un levier (16) à l'encontre de la précontrainte du ressort et avec rétablissement automatique de la forme du tuyau souple (11). Le tuyau souple (11) s'étend à travers un support (9) et forme, conjointement avec celui-ci, une cartouche emboîtable de façon amovible, en tant que composant unitaire remplaçable, dans un logement (7) du boîtier (3).The present invention relates to a pinch valve for medical instruments and apparatus for controlling the flow in a flexible hose (11). The flexible hose (11), located in a housing (3), is, for stopping the flow, elastically deformed and crushed using a stop member (14) applying the outside on the flexible pipe, under the preload of a spring, and the stop member, for the release of the flow, is displaceable by actuation of a lever (16) against the preload of the spring and with automatic restoration of the shape of the flexible pipe (11). The flexible hose (11) extends through a support (9) and forms, together with this, a cartridge which can be removably fitted, as a replaceable unit component, in a housing (7) of the housing (3). .

Description

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La présente invention concerne un robinet à pincement pour instruments et appareils médicaux. Des robinets à pincement servent à commander l'écoulement dans un tuyau souple, le tuyau souple, qui se trouve dans un boîtier, étant, pour l'arrêt de l'écoulement, déformé élastiquement et écrasé à l'aide d'un organe d'arrêt s'appliquant de l'extérieur sur le tuyau souple, sous la précontrainte d'un ressort, et l'organe d'arrêt, pour la libération de l'écoulement, étant déplaçable par actionnement d'un levier à l'encontre de la précontrainte du ressort et avec rétablissement  The present invention relates to a pinch valve for medical instruments and apparatus. Pinch valves are used to control the flow in a flexible hose, the flexible hose, which is in a housing, being, for stopping the flow, elastically deformed and crushed by means of a member stop applied from the outside on the flexible pipe, under the preload of a spring, and the stop member, for the release of the flow, being movable by actuation of a lever against spring preload and with recovery

automatique de la forme du tuyau souple.  automatic hose shape.

Des robinets à pincement de ce type, connus par exemple d'après le document DE 196 24 811 Ai, sont d'une construction relativement complexe et coûteuse en ce qui concerne le système mécanique de déplacement de l'organe d'arrêt et, en raison du nombre relativement important de pièces individuelles et de la configuration compliquée de ces dernières, ils ne peuvent être démontés, nettoyés, désinfectés et/ou stérilisés qu'avec difficultés. Avec de tels robinets à pincement, des problèmes se posent aussi régulièrement en ce qui concerne la réalisation d'une étanchéité parfaite dans la région des extrémités du tuyau souple, de sorte que le robinet ne peut pas être trop sollicité et en tout cas pas par une pression de fluide élevée, d'autant plus que sinon il existe aussi le danger que le tuyau  Pinch valves of this type, known for example from document DE 196 24 811 Ai, are of relatively complex and costly construction as regards the mechanical system for moving the stop member and, in particular, Due to the relatively large number of individual parts and the complicated configuration of these, they can only be disassembled, cleaned, disinfected and / or sterilized with difficulty. With such pinch valves, problems also arise regularly with regard to achieving a perfect seal in the region of the ends of the flexible pipe, so that the valve cannot be stressed too much and in any case not by high fluid pressure, especially since otherwise there is also the danger that the hose

souple se détache du raccord qui lui est associé dans le robinet.  flexible is detached from the associated fitting in the tap.

La présente invention vise à remédier à ces inconvénients et, par conséquent, elle s'est fixé pour but de proposer un robinet à pincement qui soit d'une conception structurellement simple et puisse être démonté facilement en vue de son nettoyage, de sa désinfection et de sa stérilisation et qui, par ailleurs, puisse être sollicité par des pressions de fluide élevées  The present invention aims to remedy these drawbacks and, consequently, it has set itself the aim of proposing a pinch valve which is of a structurally simple design and can be easily disassembled for the purpose of cleaning, disinfecting and of its sterilization and which, moreover, can be stressed by high fluid pressures

sans aucun problème d'étanchéité.  without any sealing problem.

Le but de l'invention est atteint avec un robinet à pincement servant à commander l'écoulement dans un tuyau souple, et formé de façon que le tuyau souple s'étend à travers un support et forme, conjointement avec celui-ci, une cartouche emboîltable de façon amovible, en tant que composant unitaire remplaçable, dans un logement du boîtier. Cette cartouche peut, après l'ouverture du boîtier, être retirée de façon simple de ce dernier, de sorte que le logement du boîtier ainsi que d'autres pièces, y compris l'organe d'arrêt, sont librement accessibles aux moyens de  The object of the invention is achieved with a pinch valve serving to control the flow in a flexible pipe, and formed so that the flexible pipe extends through a support and forms, jointly with the latter, a cartridge. removably nestable as a replaceable unit component in a housing of the housing. This cartridge can, after opening the housing, be simply removed from the latter, so that the housing of the housing and other parts, including the stop member, are freely accessible to the means of

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nettoyage, de désinfection ou de stérilisation, tandis que la cartouche retirée est alors traitée séparément ou éventuellement aussi remplacée, lorsqu'il  cleaning, disinfection or sterilization, while the removed cartridge is then treated separately or possibly also replaced, when

s'agit d'un article jetable bon marché, par une nouvelle cartouche.  it is a cheap disposable item, with a new cartridge.

De l'assemblage du tuyau souple et du support en un composant unitaire se présentant sous la forme d'une cartouche, il résulte aussi la possibilité de réaliser une étanchéité spéciale, pouvant résister à de fortes pressions, entre le tuyau souple et le boîtier, ceci grâce au fait qu'à ses deux extrémités, le tuyau souple cylindrique est rabattu, sur une partie de sa longueur, autour de tronçons d'extrémité cylindriques du support et forme  The assembly of the flexible pipe and the support into a unitary component in the form of a cartridge, it also results in the possibility of producing a special seal, capable of withstanding high pressures, between the flexible pipe and the housing, this thanks to the fact that at its two ends, the cylindrical flexible pipe is folded, over a part of its length, around cylindrical end sections of the support and forms

o10 ainsi des éléments d'étanchéité entre le support et le boîtier.  o10 thus sealing elements between the support and the housing.

Dans le boîtier et dans le support, sont prévus des trous respectifs de passage, formés dans une direction radiale par rapport à l'axe longitudinal du robinet, pour l'organe d'arrêt, lequel est réalisé sous la forme d'une tige-poussoir déplaçable radialement par rapport à la surface périphérique du tuyau souple, cette tige-poussoir étant articulée au levier et  In the housing and in the support, respective passage holes are provided, formed in a radial direction relative to the longitudinal axis of the valve, for the stop member, which is produced in the form of a rod. push rod radially movable relative to the peripheral surface of the flexible pipe, this push rod being articulated to the lever and

guidée radialement dans le trou de passage du boîtier.  radially guided in the housing through hole.

De façon avantageuse, le boîtier est constitué de deux éléments de boîtier, auquel cas un élément de boîtier est un capuchon à pas de vis qui s'applique par-dessus l'autre élément de boîtier, à l'une de ses extrémités, et qui est vissé sur celui-ci, et la cartouche est serrée, de façon étanche, entre les deux éléments de boîtier. Par ailleurs, il peut être prévu, sur un élément de boîtier, un embout de raccordement de tuyau souple et, sur l'autre élément de boîtier, un élément d'accouplement, à l'aide duquel le robinet  Advantageously, the housing consists of two housing elements, in which case a housing element is a screw-threaded cap which is applied over the other housing element, at one of its ends, and which is screwed thereon, and the cartridge is tightly sealed between the two housing elements. Furthermore, there may be provided, on one housing element, a flexible pipe connection end piece and, on the other housing element, a coupling element, by means of which the tap

peut être relié, de façon amovible, à l'instrument ou à l'appareil médical.  can be removably connected to the medical instrument or device.

Un mode de réalisation de la présente invention va maintenant être décrit plus en détail, mais uniquement à titre d'exemple non limitatif, en référence aux dessins annexés, sur lesquels: la figure 1 est une vue de côté d'un instrument endoscopique muni d'un robinet à pincement conforme à ce mode de réalisation, disposé à l'extrémité proximale de l'instrument et représenté en coupe longitudinale, et la figure 2 représente, à plus grande échelle, le robinet à pincement  An embodiment of the present invention will now be described in more detail, but only by way of non-limiting example, with reference to the accompanying drawings, in which: FIG. 1 is a side view of an endoscopic instrument provided with '' a pinch valve according to this embodiment, arranged at the proximal end of the instrument and shown in longitudinal section, and Figure 2 shows, on a larger scale, the pinch valve

de la figure 1.of figure 1.

Le robinet à pincement 1 est, au moyen d'une structure d'accouplement, relié de façon amovible à l'instrument 2. Il comprend un boîtier 3 qui est constitué d'un premier élément de boîtier 4, sur lequel se  The pinch valve 1 is, by means of a coupling structure, detachably connected to the instrument 2. It comprises a housing 3 which consists of a first housing element 4, on which is

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trouve un raccord d'accouplement 4a destiné à être réuni à une pièce d'accouplement, s'adaptant à ce raccord, de l'instrument, ainsi que d'un second élément de boîtier 5 se présentant sous la forme d'un capuchon à pas de vis, qui est vissé, dans la région 6, sur un embout fileté du premier élément de boîtier. L'élément de boîtier 4 comporte un évidement cylindrique constituant un logement 7 pour une cartouche 8. Celle-ci se compose d'un support rigide 9, qui présente un canal axialement continu 10, et d'un tuyau souple 11 qui s'étend à travers le canal 10 et qui, à chacune de ses deux 0o parties d'extrémité, est rabattu par-dessus un embout du support 9, de sorte qu'entre ces embouts et des surfaces frontales d'extrémité des deux éléments de boîtier, se trouvent placés, d'une manière correspondant à la représentation, des tronçons 1 la, 1 lb du tuyau souple, permettant de rendre les éléments de boîtier étanches vis-à-vis du logement et du canal 10. En vissant plus ou moins fortement l'élément de boîtier 5 sur l'embout fileté de l'élément de boîtier 4, on a la possibilité d'influer sur la fonction et l'effet de  finds a coupling fitting 4a intended to be joined to a coupling piece, adapting to this fitting, of the instrument, as well as of a second housing element 5 which is in the form of a cap no screw, which is screwed, in region 6, onto a threaded end piece of the first housing element. The housing element 4 has a cylindrical recess constituting a housing 7 for a cartridge 8. This consists of a rigid support 9, which has an axially continuous channel 10, and a flexible pipe 11 which extends through the channel 10 and which, at each of its two 0o end parts, is folded over an end piece of the support 9, so that between these end pieces and front end surfaces of the two housing elements, are placed, in a manner corresponding to the representation, of the sections 11a, 1lb of the flexible hose, making it possible to seal the housing elements vis-à-vis the housing and the channel 10. By screwing more or less strongly the housing element 5 on the threaded end of the housing element 4, there is the possibility of influencing the function and the effect of

ces deux éléments d'étanchéité.  these two sealing elements.

Dans le boîtier, plus précisément dans le premier élément de boîtier 4, ainsi que dans le support 9, sont prévus des trous de passage respectifs 12 et 13 pour un organe d'arrêt 14, le trou de passage 13 ménagé dans le support 9 étant alors réalisé sous de grandes dimensions afin qu'il y ait suffisamment de place pour le tuyau souple 1 1 lorsqu'il reprend sa forme au  In the housing, more precisely in the first housing element 4, as well as in the support 9, respective passage holes 12 and 13 are provided for a stop member 14, the passage hole 13 formed in the support 9 being then made in large dimensions so that there is enough space for the flexible pipe 1 1 when it resumes its shape at

moment de l'ouverture du robinet, représenté en position d'obturation.  when the tap is opened, shown in the closed position.

L'organe d'arrêt 14 est réalisé sous la forme d'une tige-poussoir qui est articulée avec le jeu nécessaire, en 15, à un levier 16 et qui est guidée  The stop member 14 is produced in the form of a push rod which is articulated with the necessary clearance, at 15, to a lever 16 and which is guided

radialement dans le trou de passage 12 de l'élément de boîtier 4.  radially in the through hole 12 of the housing element 4.

Le levier 16 est monté pivotant autour d'un axe-palier 17 et est, à l'aide d'un ressort 18, précontraint dans le sens des aiguilles d'une montre, considéré par rapport à la représentation, de telle façon qu'il repousse automatiquement la tige-poussoir 14 en direction de la surface périphérique du tuyau souple et que la tige-poussoir déforme alors élastiquement le tuyau  The lever 16 is pivotally mounted around a bearing axis 17 and is, using a spring 18, prestressed in the clockwise direction, considered with respect to the representation, in such a way that it automatically pushes the push rod 14 towards the peripheral surface of the flexible pipe and the push rod then elastically deforms the pipe

souple, comme représenté, en vue d'obturer le robinet.  flexible, as shown, for closing the valve.

Une pression exercée à la main sur le levier 16 fait pivoter ce  A pressure exerted by hand on the lever 16 rotates this

dernier dans le sens contraire des aiguilles d'une montre, autour de son axe-  last counterclockwise, around its axis-

palier 17. Le levier 16 tire alors la tige-poussoir 14 radialement vers  bearing 17. The lever 16 then pulls the push rod 14 radially towards

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l'extérieur, à travers le trou de passage 12, de sorte que le tuyau souple reviendra par déformation élastique dans sa configuration globalement cylindrique et que du fluide, arrivant par l'embout de raccordement de tuyau souple 5a, pourra s'écouler, sans aucun obstacle, jusqu'à l'instrument, à travers le canal 10 et le passage 4b ménagé dans l'élément de boîtier 4. A l'inverse, le robinet se refermera automatiquement lorsque la pression  the exterior, through the passage hole 12, so that the flexible hose will return by elastic deformation in its generally cylindrical configuration and that fluid, arriving via the flexible hose connection end piece 5a, will be able to flow, without no obstacle, up to the instrument, through the channel 10 and the passage 4b formed in the housing element 4. Conversely, the valve will close automatically when the pressure

exercée sur le bras de grande longueur du levier 16 sera relâchée.  exerted on the long arm of the lever 16 will be released.

Pour finir, il convient encore de signaler qu'avec le robinet à pincement conforme à l'invention, on peut non seulement commander l'écoulement de fluides, mais on peut aussi positionner par blocage des instruments auxiliaires engagés à travers le robinet à pincement, les instruments auxiliaires pouvant même avoir, par ailleurs, des diamètres différents.  Finally, it should also be noted that with the pinch valve according to the invention, it is not only possible to control the flow of fluids, but it is also possible to position, by blocking, the auxiliary instruments engaged through the pinch valve, the auxiliary instruments can even have, moreover, different diameters.

27971902797190

Claims (6)

REVENDICATIONS 1. Robinet à pincement pour instruments et appareils médicaux, servant à commander l'écoulement dans un tuyau souple (11), le tuyau souple (11), qui se trouve dans un boîtier (3), étant, pour l'arrêt de l'écoulement, déformé élastiquement et écrasé à l'aide d'un organe d'arrêt (14) s'appliquant de l'extérieur sur le tuyau souple, sous la précontrainte d'un ressort, et l'organe d'arrêt, pour la libération de l'écoulement, étant déplaçable par actionnement d'un levier (16) à l'encontre de la précontrainte du ressort et avec rétablissement automatique de la forme du tuyau souple (11), caractérisé en ce que le tuyau souple (11) s'étend à travers un support (9) et forme, conjointement avec celui-ci, une cartouche emboîtable de façon amovible, en tant que composant unitaire remplaçable, dans un  1. Pinch valve for medical instruments and apparatus, used to control the flow in a flexible hose (11), the flexible hose (11), which is located in a housing (3), being, for stopping the flow, elastically deformed and crushed using a stop member (14) applied from the outside to the flexible pipe, under the preload of a spring, and the stop member, for the release of the flow, being movable by actuation of a lever (16) against the preload of the spring and with automatic restoration of the shape of the flexible pipe (11), characterized in that the flexible pipe (11 ) extends through a support (9) and forms, together with this, a removably nestable cartridge, as a replaceable unitary component, in a logement (7) du boîtier (3).housing (7) of the housing (3). 2. Robinet à pincement selon la revendication 1, caractérisé en ce qu'à ses deux extrémités, le tuyau souple cylindrique (11) est rabattu, sur une partie de sa longueur (1 la, l lb), autour de tronçons d'extrémité cylindriques (9a, 9b) du support (9) et forme ainsi des éléments d'étanchéité  2. Pinch valve according to claim 1, characterized in that at its two ends, the cylindrical flexible pipe (11) is folded over a part of its length (1 la, 1 lb), around end sections cylindrical (9a, 9b) of the support (9) and thus forms sealing elements entre le support (9) et le boîtier (3).  between the support (9) and the housing (3). 3. Robinet à pincement selon la revendication 1 ou 2, caractérisé en ce qu'un trou de passage (12, 13) pour l'organe d'arrêt (14) est prévu  3. Pinch valve according to claim 1 or 2, characterized in that a passage hole (12, 13) for the stop member (14) is provided respectivement dans le boîtier (3) et dans le support (9).  respectively in the housing (3) and in the support (9). 4. Robinet à pincement selon l'une quelconque des revendications 1  4. Pinch valve according to any one of claims 1 à 3, caractérisé en ce que l'organe d'arrêt (14) est réalisé sous la forme d'une tige-poussoir, qui est articulée au levier (16) et qui est guidée radialement  to 3, characterized in that the stop member (14) is produced in the form of a push rod, which is articulated to the lever (16) and which is guided radially dans le trou de passage (12) du boîtier (3).  in the through hole (12) of the housing (3). 5. Robinet à pincement selon l'une quelconque des revendications 1  5. Pinch valve according to any one of claims 1 à 4, caractérisé en ce que le boîtier (3) est constitué de deux éléments de boîtier, en ce qu'un élément de boîtier (5) est un capuchon à pas de vis qui s'applique par-dessus l'autre élément de boîtier (4), à l'une de ses extrémités,  4, characterized in that the housing (3) consists of two housing elements, in that a housing element (5) is a screw cap which is applied over the other element housing (4), at one of its ends, 6 27971906 2797 190 et qui est vissé sur celui-ci, et en ce que la cartouche est serrée, de façon  and which is screwed onto it, and in that the cartridge is tightened, so étanche, entre les deux éléments de boîtier (4, 5).  watertight, between the two housing elements (4, 5). 6. Robinet à pincement selon la revendication 5, caractérisé en ce qu'un embout de raccordement de tuyau souple (5a) est prévu sur un  6. Pinch valve according to claim 5, characterized in that a flexible pipe connection end piece (5a) is provided on a élément de boîtier (5) et un élément d'accouplement (4a), sur l'autre élément de boîtier (4).  housing element (5) and a coupling element (4a), on the other housing element (4).
FR0009970A 1999-08-05 2000-07-28 NIPPED TAP FOR MEDICAL INSTRUMENTS AND DEVICES Withdrawn FR2797190A1 (en)

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DE19936959A DE19936959A1 (en) 1999-08-05 1999-08-05 Pinch valve for medical instruments and devices

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FR2797190A1 true FR2797190A1 (en) 2001-02-09

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DE (1) DE19936959A1 (en)
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US9126219B2 (en) 2013-03-15 2015-09-08 Alcon Research, Ltd. Acoustic streaming fluid ejector
US9545337B2 (en) 2013-03-15 2017-01-17 Novartis Ag Acoustic streaming glaucoma drainage device
US9693896B2 (en) 2013-03-15 2017-07-04 Novartis Ag Systems and methods for ocular surgery
US9750638B2 (en) 2013-03-15 2017-09-05 Novartis Ag Systems and methods for ocular surgery
US9861522B2 (en) 2009-12-08 2018-01-09 Alcon Research, Ltd. Phacoemulsification hand piece with integrated aspiration pump
US9915274B2 (en) 2013-03-15 2018-03-13 Novartis Ag Acoustic pumps and systems
US9962288B2 (en) 2013-03-07 2018-05-08 Novartis Ag Active acoustic streaming in hand piece for occlusion surge mitigation
US10182940B2 (en) 2012-12-11 2019-01-22 Novartis Ag Phacoemulsification hand piece with integrated aspiration and irrigation pump

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8790096B2 (en) 2009-05-06 2014-07-29 Alcon Research, Ltd. Multiple segmented peristaltic pump and cassette
US9861522B2 (en) 2009-12-08 2018-01-09 Alcon Research, Ltd. Phacoemulsification hand piece with integrated aspiration pump
US10182940B2 (en) 2012-12-11 2019-01-22 Novartis Ag Phacoemulsification hand piece with integrated aspiration and irrigation pump
US9962288B2 (en) 2013-03-07 2018-05-08 Novartis Ag Active acoustic streaming in hand piece for occlusion surge mitigation
US9126219B2 (en) 2013-03-15 2015-09-08 Alcon Research, Ltd. Acoustic streaming fluid ejector
US9545337B2 (en) 2013-03-15 2017-01-17 Novartis Ag Acoustic streaming glaucoma drainage device
US9693896B2 (en) 2013-03-15 2017-07-04 Novartis Ag Systems and methods for ocular surgery
US9750638B2 (en) 2013-03-15 2017-09-05 Novartis Ag Systems and methods for ocular surgery
US9915274B2 (en) 2013-03-15 2018-03-13 Novartis Ag Acoustic pumps and systems

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GB0017843D0 (en) 2000-09-06
DE19936959A1 (en) 2001-02-15
GB2352797A (en) 2001-02-07

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