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FR2565828A1 - Valve balloon which is detachable from a catheter intended for its positioning - Google Patents

Valve balloon which is detachable from a catheter intended for its positioning Download PDF

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Publication number
FR2565828A1
FR2565828A1 FR8317980A FR8317980A FR2565828A1 FR 2565828 A1 FR2565828 A1 FR 2565828A1 FR 8317980 A FR8317980 A FR 8317980A FR 8317980 A FR8317980 A FR 8317980A FR 2565828 A1 FR2565828 A1 FR 2565828A1
Authority
FR
France
Prior art keywords
balloon
catheter
sleeve
nozzle
distal
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.)
Pending
Application number
FR8317980A
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French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8317980A priority Critical patent/FR2565828A1/en
Publication of FR2565828A1 publication Critical patent/FR2565828A1/en
Priority to FR8806202A priority patent/FR2630918A2/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/12136—Balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M2025/0073—Tip designed for influencing the flow or the flow velocity of the fluid, e.g. inserts for twisted or vortex flow
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1054—Balloon catheters with special features or adapted for special applications having detachable or disposable balloons
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1077—Balloon catheters with special features or adapted for special applications having a system for expelling the air out of the balloon before inflation and 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M25/0075—Valve means

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Vascular Medicine (AREA)
  • Reproductive Health (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Neurosurgery (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention relates to a vascular embolisation device consisting of a releasable valve balloon and its implementing catheter. The balloon 1 is made of an elastomer. It comprises at its proximal part a collar inside which a sleeve 2 is connected by adhesive bonding which projects into the balloon. The distal face of the sleeve is drilled. A locating nozzle 4 made of a radiopaque material is set inside the point of the sleeve. There is optionally attached to this nozzle a wire 5 made of a blood-soluble material which emerges from carrying catheter through which it travels. According to one variant, a second connected sleeve may be superimposed on the first sleeve. The balloon is introduced as far as the embolisation zone by means of a carrying catheter 7, over the distal end of which it is fitted. Its release is carried out after inflation by bringing a rigid catheter against the shoulder formed by the collar of the balloon. The holding of the balloon on the catheter is obtained by the fastening due to the difference of the internal diameter of the collar and the external diameter of the catheter (diameter < catheter diameter). Adhesion is improved by disposing at the distal end of the catheter a slightly raised and/or flared profile. The inflation of the balloon is carried out by injecting a liquid by means of a syringe connected to the proximal end of the carrying catheter. When the carrying catheter is retracted, the pressure existing in the balloon forces the projecting part of the sleeve to collapse.

Description

La présente invention concerne un dispositif comportant un ballonnet à valve monté à l'extrémité d'un cathéter porteur destiné à sa mise en place. Un tel dispositif peut être utilisé pour l'emholisation de malformations vasculaires ou leur occlusion. Ceci est effectué par largage du ballon. The present invention relates to a device comprising a valve balloon mounted at the end of a carrying catheter intended for its positioning. Such a device can be used for the emholization of vascular malformations or their occlusion. This is done by dropping the balloon.

Le ballonnet comporte un col permettant son gonflage et son emmanchement sur l'extrémité distale d'un cathéter porteur. Cette extrémité comporte un profil en léger relief et/ou une évasure procurant une meilleure adhérence du ballonnet au cathéter porteur. The balloon has a neck allowing it to inflate and be fitted onto the distal end of a carrying catheter. This end has a slightly raised profile and / or a flare providing better adhesion of the balloon to the carrying catheter.

Un manchon de forme particulière est rapporté à l'intérieur du col du ballonnet où il fait saillie. Ce manchon assure automatiquement l'étanchéité du ballonnet après gonflage et largage de celui-ci. Une buse en matériau radiopaque est sertie à l'intérieur du manchon. A specially shaped sleeve is attached to the inside of the balloon neck where it projects. This sleeve automatically seals the balloon after inflating and releasing it. A nozzle made of radiopaque material is crimped inside the sleeve.

Il est connu que des ballonnets peuvent être utilisés pour effectuer des embolisations vasculaires. Pour pouvoir être amenés jusqu'à l'espace à emboliser ces ballonnets doivent être fixés sur l'extré- mité distale d'un cathéter porteur duquel ils sont désolidarisés (largués) après gonflage. Ces ballonnets sont réalisés en élastomères. Leur forme est généralement ovoïde et leur diamètre nominal est de l'ordre de 1 mm. It is known that balloons can be used to perform vascular embolizations. To be able to be brought to the space to be embolized, these balloons must be fixed to the distal end of a carrying catheter from which they are detached (released) after inflation. These balloons are made of elastomers. Their shape is generally ovoid and their nominal diameter is around 1 mm.

Le pale proximal du ballonnet est constitué par un col permettant l'emmanchement sur l'extrémité d'un cathéter porteur. The proximal balloon blade is constituted by a neck allowing the fitting on the end of a carrying catheter.

Selon un premier mode de réalisation existant le maintien du ballonnet sur le cathéter est assuré par une ligature du col faite avec de minuscules liens élastiques. Cette ligature a également pour roule d'assurer ultérieurement la fermeture du col du ballonnet après largage et de le rendre étanche. According to a first existing embodiment, the retention of the balloon on the catheter is ensured by a ligature of the neck made with tiny elastic ties. This ligature also has the task of ensuring the closing of the neck of the balloon after release and of making it waterproof.

Le largage du ballonnet est obtenu en amenant au contact de l'épaulement formé par le col un cathéter rigide disposé coaxialement au cathéter porteur et en tirant fermement sur celui-ci (le cathéter porteur étant maintenu contre l'épaulement)).Les deux cathéters sont rétrogradés sitôt après largage. The release of the balloon is obtained by bringing in contact with the shoulder formed by the neck a rigid catheter arranged coaxially with the delivery catheter and by firmly pulling on the latter (the carrying catheter being held against the shoulder). are demoted immediately after release.

La ligature entraîne certains inconvenients dont quelques uns sont indiqués ci-dessous
a/ risque de fuite en cas d'inperfection de réalisation de la liga
ture.There are some drawbacks to ligation, some of which are listed below
a / risk of absconding in the event of an imperfect performance in the La Liga
ture.

b/ risque de traumatisme des vaisseaux en cas de surépaisseur de la
ligature.b / risk of trauma to the vessels in the event of excess thickness of the
ligature.

c/ nécessité de ne faire la ligature que peu de temps avant utili
sation du ballonnet pour s'assurer qu'elle remplira bien son
rôle (fatigue des liens élastiques).c / need to do the ligature only a short time before using
sation of the balloon to make sure it will fill its
role (fatigue of elastic ties).

d/ la qualité de la ligature dépend de la dextérité de l'opérateur. d / the quality of the ligature depends on the dexterity of the operator.

e/ la ligature peut se défaire. e / the ligature can be undone.

Selon un deuxième mode de réalisation existant le col du ballonnet est introduit dans l'extrémité distale du cathéter porteur.According to a second existing embodiment, the neck of the balloon is introduced into the distal end of the carrying catheter.

L'accrochage allonnet/cathéter est obtenu par striction du col du ballonnet au moyen d'un anneau restricteur disposé à l'intérieur de la partie distale du cathéter porteur. The allonnet / catheter attachment is obtained by constriction of the neck of the balloon by means of a restricting ring disposed inside the distal part of the carrying catheter.

Dans le cas de cette réalisation la désolidarisation cathéter/ballonnet (il n'y a plus largage proprement parler) s'obtient au gonflage comme suit lorsque le ballonnet gonflé arrive au contact des parois du vaisseau, un supplément d'injection se traduit par une nette augmentation de la pression sans modification du volume atteint par le ballonnet. Cet accroissement de la pression détermine la dilatation du cathéter dont l'anneau restricteur relâche le col du ballonnet qui est ainsi déso lidarisé
Le cathéter peut alors être rétrogradé.In the case of this embodiment, the separation of the catheter / balloon (there is no longer proper release) is obtained with inflation as follows when the inflated balloon comes into contact with the walls of the vessel, an additional injection results in a clear increase in pressure without changing the volume reached by the balloon. This increase in pressure determines the dilation of the catheter whose restricting ring releases the neck of the balloon which is thus deo lidarized
The catheter can then be demoted.

Dans cette réalisation l'étanchéité du ballonnet est assurée par une membrane disposée à l'intérieur de celui-ci de manière à faire clapet anti-retour.In this embodiment, the sealing of the balloon is ensured by a membrane disposed inside of it so as to form a non-return valve.

La conception de ce dispositif impose un compromis extrêmement délicat à réaliser quant aux dimensions du col du ballonnet et de la bague-de restriction. En effet trop de serrage entraîne une désolidarisation prématurée. Les inconvénients majeurs qui en découlent sont:
a/ manque de fiabilité (désolidarisation aléatoire)
b/ risque d'éclatement du ballonnet avant que le seuil de désolida
risation soit atteint. The design of this device imposes an extremely delicate compromise to be made as regards the dimensions of the neck of the balloon and of the restriction ring. In fact, too much tightening leads to premature separation. The major drawbacks that follow are:
a / unreliability (random separation)
b / risk of bursting of the balloon before the separation threshold
achievement.

La présente invention vise à supprimer les inconvénients liés aux dispositifs ci-dessus en s'affranchissant de la ligature et en évitant le peu de fiabilité des dispositifs comportant un anneau restricteur dans le conduit du cathéter. The present invention aims to eliminate the drawbacks associated with the above devices by dispensing with the ligature and by avoiding the unreliability of the devices comprising a restricting ring in the catheter conduit.

Selon une première caractéristique de l'invention l'étanchéité du ballonnet est réalisée par un manchon rapporté par collage à l'inte- rieur du col du ballonnet. Ce manchon fait saillie à l'intérieur du ballonnet. Son extrémité distale, fermée, comporte un orifice calibré réalisé sans retrait de matière. Cet orifice se distend sous l'action de la pression d'admission du liquide utilisé pour le gonfla ge du ballon. According to a first characteristic of the invention, the balloon is sealed by a sleeve attached by gluing inside the neck of the balloon. This sleeve projects inside the balloon. Its distal end, closed, has a calibrated orifice made without removal of material. This orifice expands under the action of the inlet pressure of the liquid used to inflate the balloon.

Le diamètre intérieur du col d'emmanchement constitué par la superposition du col du ballonnet et du manchon est plus faible que le diamètre extérieurdu cathéter porteur. Ceci permet un emmanchement avec un serrage. Des moyens seront préférentiellement prévus sur l'extre- mité distale du cathéter porteur pour augmenter l'adhérence du col du ballonnet sur celui-ci. The inside diameter of the fitting neck formed by the superposition of the neck of the balloon and the sleeve is smaller than the outside diameter of the carrying catheter. This allows fitting with tightening. Means will preferably be provided on the distal end of the carrying catheter to increase the adhesion of the neck of the balloon to it.

Selon une deuxième caractéristique de l'invention une meilleure adhérence de l'emmanchement du ballonnet sur le cathéter est obtenue en disposant à l'extrémité de celui-ci un profil cranté en léger relief et/ou en pratiquant une légère évasure. According to a second characteristic of the invention, better adhesion of the fitting of the balloon to the catheter is obtained by arranging at the end of the latter a notched profile in slight relief and / or by making a slight flare.

Selon une troisième caractéristique de l'invention une buse en matériau radiopaque, permettant le repérage en radioscopie, est sertie à l'extrémité du manchon qui fait saillie dans le ballonnet. According to a third characteristic of the invention, a nozzle made of radiopaque material, allowing identification by radioscopy, is crimped at the end of the sleeve which projects into the balloon.

Selon une autre caractéristique de l'invention une sécurité supplémentaire contre une séparation involontaire du ballonnet est apportée en attachant à la buse un mince fil en matière soluble dans le sang. L'extrémité proximale de ce fil qui chemine dans le cathéter peut être tenu en main par le praticien. Ce fil peut également être rendu solidaire du cathéter par un moyen quelconque. According to another characteristic of the invention, additional security against involuntary separation of the balloon is provided by attaching to the nozzle a thin wire of material soluble in blood. The proximal end of this wire that runs through the catheter can be held in the hand by the practitioner. This wire can also be made integral with the catheter by any means.

Ce fil est abandonné dans l'organisme après largage du ballonnet et finit par se dissoudre jusqu'à totale disparition. This thread is left in the body after dropping the balloon and ends up dissolving until total disappearance.

Les figures jointes montrent à titre illustratif un mode de réalisation de l'ensemble des dispositifs de l'invention.  The attached figures show by way of illustration an embodiment of all the devices of the invention.

La figure i montre, à échelle agrandie, le ballonnet à valve (1)mon- té sur l'extrémité distale du tube porteur. Cette extrémité est munie de crans en léger relief (3) et cporte une légère évasure (non représentée) favorisant l'adhérence du ballonnet sur le cathé- ter. Figure i shows, on an enlarged scale, the valve balloon (1) mounted on the distal end of the carrier tube. This end is provided with notches in slight relief (3) and has a slight flare (not shown) promoting the adhesion of the balloon to the catheter.

Le manchon rapporté (2) est représenté en traits plein dans la position où il se trouve lorsqu'il n'est pas sollicité par une pression du côté du cathéter. The attached sleeve (2) is shown in solid lines in the position it is in when it is not stressed by pressure from the catheter side.

Le manchon (27 est rendu solidaire du col du ballonnet par cl
Les traits en pointillés le montrent dans la position qu'il occupe en cours de gonflage du ballonnet.The sleeve (27 is made integral with the neck of the balloon by cl
The dotted lines show it in the position it occupies during inflation of the balloon.

La figure (2) représente le ballonner après son remplissage et désolidarisation du tube porteyr. Figure (2) shows the balloon after filling and separation of the porteyr tube.

La figure (3) représente une variante ou le manchon rapporté fait plus profondément saillie dans le ballonnet. Figure (3) shows a variant where the insert sleeve projects more deeply into the balloon.

La figure (4) représente une autre variante du ballonnet équipé un dauxième manchon (6) se usant sw premier. te manchon rapporté à l'intérieur du premier également par collage. Dans cette variante la buse (4) en matériau radiopaque est disposée dans l'espace compris entre les deux face distales. Figure (4) shows another variant of the balloon equipped with a second sleeve (6) which wears out first. the sleeve attached to the inside of the first also by gluing. In this variant, the nozzle (4) made of radiopaque material is placed in the space between the two distal faces.

Le maintien du ballonnet sur le cathéter est obtenu par le serrage au à la différence du. diamètre extérieur du cathéter et du diamè-
tre interne du col de l'ensemble balionnet/manchon. Ce serrage est
d'autant plus énergique que le diamètre interne du col est plus pe- tilt. The retention of the balloon on the catheter is obtained by tightening the unlike the. outside diameter of catheter and diameter
be internal to the neck of the balloon / sleeve assembly. This tightening is
all the more energetic as the internal diameter of the neck is more tilted.

Le manchon (2) rapporté par collage dans le col du ballonnet fait
saillie dans celui-ci.The sleeve (2) attached by gluing in the neck of the balloon makes
protruding into it.

L'apex du manchon comporte un perçage calibré pratiqué sans retrait de matière.  The apex of the sleeve has a calibrated hole made without removing material.

Une petite buse (4) en matériau radiopaque est sertie à la pointe interne du manchon. Suivant une variante un fil en matière hémosoluble est attaché à cette buse. Ce fil chemine dans le cathéter à la partie proximale duquel il est fixé. Il peut être tenu en main par le praticien. A small nozzle (4) made of radiopaque material is crimped to the internal tip of the sleeve. According to a variant, a wire made of hemosoluble material is attached to this nozzle. This wire travels through the catheter to the proximal part to which it is attached. It can be held in the hand by the practitioner.

Disposé coaxialement au tube porteur est représentée l'extrémité distale d'un tube rigide (6) utilisé pour le largage du ballonnet (tube pousseur).Arranged coaxially with the carrier tube is shown the distal end of a rigid tube (6) used for the release of the balloon (pusher tube).

Le gonflage du ballonnet est obtenu en injectant à l'aide d'une seringue raccordée à l'extrémité proximale du cathéter porteur le volume de liquide- adéquat.  The inflation of the balloon is obtained by injecting, using a syringe connected to the proximal end of the carrying catheter, the appropriate volume of liquid.

Sous l'effet de la pression appliquée par la seringue l'extrémité du manchon se distend (pointillé de la fig.1) et détermine une dilatation de son orifice qui laisse ainsi pénétrer le liquide dans le ballonnet. Under the effect of the pressure applied by the syringe the end of the sleeve expands (dotted line in fig. 1) and determines a dilation of its orifice which thus lets the liquid penetrate into the balloon.

Lorsque cesse l'action sur la seringue le manchon retrouve sa forme initiale. Son orifice se resserre. When the action on the syringe ceases, the sleeve returns to its initial shape. Its orifice is narrowing.

La pression régnant dans le ballonnet et l'élasticité du manchon contribuent à plaquer sa face distale sur la buse (4). Les pressions de part et d'autre de la face distale du manchon s'équilibrent. The pressure prevailing in the balloon and the elasticity of the sleeve contribute to press its distal face on the nozzle (4). The pressures on either side of the distal face of the sleeve are balanced.

L'épaisseur du matériau à cet endroit étant prévue en conséquence, l'orifice reste donc obturé et empêche tout écoulement de liquide. The thickness of the material at this location being provided accordingly, the orifice therefore remains closed and prevents any flow of liquid.

Si l'on veut soustraire du liquide du ballon il suffit d'aspirer par la seringue. La pression dans le ballonnet provoque l'invagination autour de l'orifice du manchon. Cette surface se distend et l'orifice se dilate autorisant l'écoulement de liquide vers le cathéter. If you want to subtract liquid from the balloon, you only need to draw up the syringe. The pressure in the balloon causes invagination around the opening of the sleeve. This surface expands and the opening expands allowing the flow of liquid to the catheter.

Lorsque l'action de la seringue cesse les pressions régnant de part et d'autre de la paroi s'équilibrent. Celle-ci se plaque contre la buse et l'orifice se resserre. L'écoulement s'arrête. When the action of the syringe ceases, the pressures prevailing on either side of the wall are balanced. It presses against the nozzle and the orifice tightens. The flow stops.

Lorsque le cathéter porteur est désolidarisé du ballonnet la pression régnant dans celui-ci force la partie du manchon faisant saillie à se collaber. Cette partie est comprise entre le tronçon et la face arrière de la buse.  When the carrier catheter is detached from the balloon, the pressure therein forces the projecting part of the sleeve to collapse. This part is between the section and the rear face of the nozzle.

La force d'écrasement de la section en saillie est d'autant plus grande que la saillie est plus importante. Ainsi le conduit du manchon est obturé empêchant tout écoulement de liquide. The crushing force of the protruding section is greater the greater the protrusion. Thus the conduit of the sleeve is closed preventing any flow of liquid.

La superposition du col du ballon et du manchon rapporté forme un épaulement épais procurant un meilleur appui pour le largage du ballonnet. The superimposition of the balloon neck and the attached sleeve forms a thick shoulder providing better support for the release of the balloon.

Le fonctionnement est quasi identique à celui décrit ci-dessus pour le ballonnet équipé de deux manchons. The operation is almost identical to that described above for the balloon equipped with two sleeves.

Dans ce cas, lors de l'injection de liquide, la face distale du manchon (6) se distend son orifice se dilate et permet l'écoulement vers la buse et la face distale du manchon (2) qui se distendra à son tour. Son orifice s'élargira pour laisser pénétrer le liquide dans le ballonnet. Les deux manchons reprendront leur position initiale lorsque cessera l'action sur la seringue. A l'aspiration l'invagination des faces distales des manchons autorise l'écoulement vers le cathéter. In this case, during the injection of liquid, the distal face of the sleeve (6) distends its orifice expands and allows the flow towards the nozzle and the distal face of the sleeve (2) which will in turn distend. Its opening will widen to let the liquid penetrate into the balloon. The two sleeves will return to their initial position when the action on the syringe ceases. At the aspiration invagination of the distal faces of the sleeves authorizes the flow towards the catheter.

Lorsque le ballonnet est largué la pression qui règne à 1 'inté- rieur collabo la partie des deux manchons faisant saillie et obture le conduit. Le ballonnet est ainsi rendu étanche
Dans la variante comportant le fil de sécurité, la partie du fil hémosoluble qui émerge de l'organisme. est coupée après que les cathéters porteur et pousseur aient été rétrogradés. When the balloon is released, the pressure prevailing inside the collabo part of the two sleeves protrudes and closes the conduit. The balloon is thus sealed
In the variant comprising the safety thread, the part of the hemosoluble thread that emerges from the body. is cut after the carrier and pusher catheters have been demoted.

Claims (10)

REVENDTCATIONS 1/ Dispositif d'eibolisation vasculaire consistant en un balionnetlar- 1 / Vascular eibolization device consisting of a large balloon gable à valve et son cathéter porteur caractérisé en ce que le bal valve gable and its carrying catheter characterized in that the ball lonnet comporte un manchon valve disposé à l'intérieur du col du bal cup has a valve sleeve placed inside the neck of the ball lonnet, permettant son gonflage et dégonflage et assurant automatique cup, allowing its inflation and deflation and ensuring automatic ment l'obturation de son conduit de gonflage dès largage. Caractérisé closing off its inflation duct as soon as it is released. Characterized également par le fait que des moyens sont prévus pour son maintien au also by the fact that means are provided for maintaining it at cathéter porteur et à sa récupération éventuelle. carrier catheter and its possible recovery. 2/ Dispositif manchon valve selon revendication 1 caractérisé en ce que2 / valve sleeve device according to claim 1 characterized in that la face distale du manchon valve comporte un orifice calibré obtenu the distal face of the valve sleeve has a calibrated orifice obtained sans retrait de matière. without material removal. 3/ Dispositif selon revendications 1 et 2 caractérisé en ce qu'une buse de3 / Device according to claims 1 and 2 characterized in that a nozzle repérage en matériau radiopaque est sertie à l'intérieuride la partie marking in radiopaque material is crimped inside the part distale du manchon. distal of the sleeve. 4/ Dispositif selon revendication 3 caractérisé en ce que la bouse rigide mé4 / Device according to claim 3 characterized in that the rigid dung mé tallique qui permet le gonflage et le dégonflage est plaquXe contre la metal which allows inflation and deflation is pressed against the face distale du manchon. distal side of the sleeve. 5/ Dispositif selon l'ensemble des revendications 1 à 4 ci-dessus caracté- 5 / Device according to all of claims 1 to 4 above character- risé en ce qu'un fil de sécurité en matière hémosoluble est attaché à la laughed at in that a hemosoluble safety thread is attached to the buse et que le fil émerge à l'extrémité proximale du cathéter porteur nozzle and the wire emerges at the proximal end of the delivery catheter auquel il peut etre fixé. to which it can be attached. 6/ Dispositif selon revendication 1 et 2 ci-dessus caractérisé en ce que le6 / Device according to claim 1 and 2 above characterized in that the col de l'ensemble constitué par la superposition ballonnet/manchon pré neck of the assembly consisting of the pre-balloon / sleeve overlay sente un étranglement de diamètre intérieur permettant d'obtenir un serrage feels an internal diameter throttle to obtain a tightening à l'emmanchement sur le cathéter porteur. at the fitting on the carrying catheter. 7/ Procédé selon revendication 1 caractérisé en ce que l'assemblage du manchon7 / A method according to claim 1 characterized in that the assembly of the sleeve au ballonnet est réalisé par collage.  balloon is made by gluing. 8/ Cathéter destiné à la mise en place du ballonnet selon l'une  8 / Catheter intended for the placement of the balloon according to one quelconque des revendications précédentes caractérisé en ce que any one of the preceding claims, characterized in that son extrémité distale est pourvue d'un profil en léger relief its distal end has a slightly raised profile et/ou d'une évasure destinée à améliorer l'adhérence. and / or a flare intended to improve the grip. 9/ Dispositif selon l'une quelconque des revendications 1 à 7 ci 9 / Device according to any one of claims 1 to 7 ci dessus caractérisé en ce que le ballonnet est équipé d'un aeu above characterized in that the balloon is equipped with a eu xième manchon perforé rapporté. à l'intérieur du.. premier manchon. xth perforated sleeve added. inside the .. first sleeve. 10/ Dispositif selori l'ensemble des revendications 1, 2, 3 et 9 carac10 / Device according to all of claims 1, 2, 3 and 9 char. térisé en ce que la buse de repérage est disposée dans l'espacer  terized in that the locating nozzle is arranged in the space compris entre tes deux faces distales des deux manchons.  between your two distal faces of the two sleeves.
FR8317980A 1983-11-10 1983-11-10 Valve balloon which is detachable from a catheter intended for its positioning Pending FR2565828A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8317980A FR2565828A1 (en) 1983-11-10 1983-11-10 Valve balloon which is detachable from a catheter intended for its positioning
FR8806202A FR2630918A2 (en) 1983-11-10 1988-05-09 Balloon device with detachable valve of a catheter intended for fitting the latter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8317980A FR2565828A1 (en) 1983-11-10 1983-11-10 Valve balloon which is detachable from a catheter intended for its positioning

Publications (1)

Publication Number Publication Date
FR2565828A1 true FR2565828A1 (en) 1985-12-20

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FR8317980A Pending FR2565828A1 (en) 1983-11-10 1983-11-10 Valve balloon which is detachable from a catheter intended for its positioning

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Country Link
FR (1) FR2565828A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630918A2 (en) * 1983-11-10 1989-11-10 Alby Albert Balloon device with detachable valve of a catheter intended for fitting the latter
EP0458649A1 (en) * 1990-05-25 1991-11-27 Koken Company Limited Detachable occluding balloon with its inserting catheter
CN105559846A (en) * 2016-03-09 2016-05-11 中国人民解放军第三军医大学第一附属医院 Uterus hemostatic air bag with automatically adjustable pressure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637119A1 (en) * 1975-09-02 1977-03-03 Dow Corning Arterial seal for repairing blood vessel aneurysms - is elastic walled balloon fitted to positioning tube and valve for vessel insertion
WO1981003120A1 (en) * 1980-05-08 1981-11-12 Sorenson Res Co Inc Detachable balloon catheter apparatus and method
US4364392A (en) * 1980-12-04 1982-12-21 Wisconsin Alumni Research Foundation Detachable balloon catheter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637119A1 (en) * 1975-09-02 1977-03-03 Dow Corning Arterial seal for repairing blood vessel aneurysms - is elastic walled balloon fitted to positioning tube and valve for vessel insertion
WO1981003120A1 (en) * 1980-05-08 1981-11-12 Sorenson Res Co Inc Detachable balloon catheter apparatus and method
US4364392A (en) * 1980-12-04 1982-12-21 Wisconsin Alumni Research Foundation Detachable balloon catheter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630918A2 (en) * 1983-11-10 1989-11-10 Alby Albert Balloon device with detachable valve of a catheter intended for fitting the latter
EP0458649A1 (en) * 1990-05-25 1991-11-27 Koken Company Limited Detachable occluding balloon with its inserting catheter
US5181921A (en) * 1990-05-25 1993-01-26 Kaken Co., Ltd. Detachable balloon with two self-sealing valves
CN105559846A (en) * 2016-03-09 2016-05-11 中国人民解放军第三军医大学第一附属医院 Uterus hemostatic air bag with automatically adjustable pressure

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