FR2798840A1 - Retaining structure for an anatomical canal, in particular, a blood vessel takes the form of an elastic slit tube which is placeable around the canal or blood vessel, and is capable of assuming its original shape - Google Patents

Retaining structure for an anatomical canal, in particular, a blood vessel takes the form of an elastic slit tube which is placeable around the canal or blood vessel, and is capable of assuming its original shape Download PDF

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Publication number
FR2798840A1
FR2798840A1 FR9911999A FR9911999A FR2798840A1 FR 2798840 A1 FR2798840 A1 FR 2798840A1 FR 9911999 A FR9911999 A FR 9911999A FR 9911999 A FR9911999 A FR 9911999A FR 2798840 A1 FR2798840 A1 FR 2798840A1
Authority
FR
France
Prior art keywords
sleeve
blood vessel
canal
slot
tube
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
FR9911999A
Other languages
French (fr)
Inventor
Stefano Ricci
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.)
Laboratoires Innothera SAS
Original Assignee
Laboratoires Innothera SAS
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 Laboratoires Innothera SAS filed Critical Laboratoires Innothera SAS
Priority to FR9911999A priority Critical patent/FR2798840A1/en
Priority to FR9914386A priority patent/FR2798838A1/en
Priority to AU76679/00A priority patent/AU7667900A/en
Priority to PCT/FR2000/002675 priority patent/WO2001022888A1/en
Publication of FR2798840A1 publication Critical patent/FR2798840A1/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, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
    • A61B2017/00557—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated inflatable
    • 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
    • A61B2090/3925—Markers, e.g. radio-opaque or breast lesions markers ultrasonic
    • 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
    • A61B2090/3962—Markers, e.g. radio-opaque or breast lesions markers palpable
    • 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
    • A61B2090/3966—Radiopaque markers visible in an X-ray image

Abstract

The retaining structure for an anatomical canal, in particular, a blood vessel takes the form of a slit tube which is placeable around the canal or blood vessel. The tube is made of an elastic material which ensures that the tube assumes its original shape after external forces are removed from it.

Description

L'invention concerne une structure de contention d'un canal anatomique. Elle s'applique en particulier à la contention d'un vaisseau, notamment en phlébologie pour remédier à la dilatation indésirable d'une veine. The invention relates to a support structure for an anatomical canal. It applies in particular to the containment of a vessel, in particular in phlebology to remedy the undesirable dilation of a vein.

Ainsi, si l'on prend le cas de l'incompétence de la crosse de la saphène interne, cette pathologie est souvent la conséquence d'une dilatation de la crosse et non d'une lésion de la valvule. Les patients qui ont ainsi une insuffisance valvulaire avec des valves saines peuvent bénéficier d'une réduction du diamètre de la crosse, et diverses méthodes ont déjà été proposés à cet effet. Thus, if we take the case of incompetence of the long saphenous arch, this pathology is often the consequence of dilation of the butt and not of a lesion of the valve. Patients who thus have valve insufficiency with healthy valves can benefit from a reduction in the diameter of the arch, and various methods have already been proposed for this purpose.

On sait en particulier poser autour de la zone dilatée un manchon ou un clip en matériau souple tel que PTFE ou analogue, qui est ensuite serré autour de la veine de manière à réaliser la réduction de calibre souhaité. Ces techniques, ainsi que les autres qui ont été proposées, présentent cependant toutes l'inconvénient d'être délicates à mettre en oeuvre, tant pour leur pose que pour leur retrait, et nécessitent une intervention chi rurgicale relativement invasive. It is known in particular to place around the dilated zone a sleeve or a clip made of flexible material such as PTFE or the like, which is then tightened around the vein so as to achieve the desired reduction in size. These techniques, as well as the others which have been proposed, however all have the drawback of being difficult to implement, both for their placement and for their removal, and require a relatively invasive surgical intervention.

L'un des buts de l'invention est de pallier ces inconvénients, en proposant une structure de contention aisée à poser et dont l'efficacité ne dépende pas de l'habileté du chirurgien, qui soit également aisée à retirer si né cessaire et qui, au surplus, puisse être fabriquée à faible coût. One of the aims of the invention is to overcome these drawbacks, by proposing a compression structure which is easy to apply and whose effectiveness does not depend on the skill of the surgeon, which is also easy to remove if necessary and which , moreover, can be manufactured at low cost.

L'invention propose à cet effet de réaliser le manchon en un matériau élastiquement déformable (à la différence par exemple du PTFE ou des divers matériaux employés jusqu'à présent), et apte à solliciter radiale- ment vers l'intérieur la paroi du canal de manière sensiblement uniforme sur la périphérie de cette paroi (à la différence notamment des divers ty pes de clips ou manchons à serrer par une sollicitation externe). To this end, the invention proposes to produce the sleeve in an elastically deformable material (unlike for example PTFE or the various materials used up to now), and capable of urging the wall of the channel radially inwards substantially uniformly around the periphery of this wall (unlike in particular the various types of clips or sleeves to be tightened by external stress).

Très avantageusement, le manchon est un manchon tubulaire pourvu d'une fente s'étendant sur toute sa longueur, notamment une fente héli coïdale, dont le pas peut être choisi, en fonction du diamètre de la lon gueur du manchon, de manière à former au moins deux tours complets. Le matériau du manchon est très avantageusement un élastomère de sili cone, plus précisément un élastomère à base de polymères d'organosili- cones/organosiloxanes tel que le Silastic (marque déposée de Dow Cor- ning Corporation). Very advantageously, the sleeve is a tubular sleeve provided with a slot extending over its entire length, in particular a heli-coidal slot, the pitch of which can be chosen, depending on the diameter of the length of the sleeve, so as to form at least two full turns. The material of the sleeve is very advantageously a silica cone elastomer, more precisely an elastomer based on organosilicon / organosiloxane polymers such as Silastic (registered trademark of Dow Coring Corporation).

L'expérimentation a en effet montré que ce matériau, qui est par ailleurs couramment utilisé en médecine et en chirurgie compte tenu de son ex cellente biocompatibilité, présente l'avantage de ne pas créer d'adhéren ces entre le manchon et le vaisseau, et de plus, favorise l'apparition d'une gaine de tissu conjonctif réactionnel sur la paroi du vaisseau telle que, après quelques semaines ou quelques mois, la veine demeure continente même si l'on retire le manchon élastique. Experimentation has indeed shown that this material, which is moreover commonly used in medicine and surgery, taking into account its excellent biocompatibility, has the advantage of not creating any adhesion between the sleeve and the vessel, and moreover, promotes the appearance of a sheath of reactive connective tissue on the wall of the vessel such that, after a few weeks or a few months, the vein remains continuous even if the elastic sleeve is removed.

Le manchon peut être réalisé très simplement à partir d'un tube de sili cone, en découpant une longueur dans ce tube puis en entaillant cette longueur de tube pour y former la fente hélicoïdale. Ceci permet de béné ficier de la mémoire de forme liée à cette structure tubulaire. The sleeve can be produced very simply from a silica cone tube, by cutting a length in this tube then by cutting this length of tube to form the helical slot. This allows to benefit from the shape memory linked to this tubular structure.

Pour la pose du manchon, il suffit au chirurgien de dérouler le manchon à la manière d'un serpentin puis de l'enrouler autour de la région dilatée, le manchon reprenant par son élasticité sa forme spiralée. On assure ainsi un auto-positionnement du manchon, sans l'aide d'aucun instrument ni accessoire tel que pince ou autre, par le simple effet de la mémoire de forme procurée par la structure hélicoïdale et le matériau élastiquemeht déformable. For the fitting of the sleeve, the surgeon need only unroll the sleeve in the manner of a serpentine and then wrap it around the expanded region, the sleeve resuming its elasticity in its spiral shape. This ensures self-positioning of the sleeve, without the aid of any instrument or accessory such as pliers or the like, by the simple effect of the shape memory provided by the helical structure and the deformable elastic material.

Le retrait s'effectue exactement à l'inverse, en déroulant le manchon pour le séparer du vaisseau. Le manchon peut donc être retiré très aisément, sans traumatisme vasculaire, et ne produit pas d'effet sténosant. The withdrawal is carried out exactly in reverse, by unrolling the sleeve to separate it from the vessel. The sleeve can therefore be removed very easily, without vascular trauma, and does not produce a stenosing effect.

On notera que, du point de vue de la déformabilité mécanique, la struc ture du manchon rend celui-ci parfaitement réversible - à la différence, ici encore, des clips ou autres dispositifs analogues jusqu'à présent utilisés. Divers perfectionnements peuvent être envisagés, par exemple - un marquage radio-opaque du manchon, - une ou plusieurs bulles d'air incorporées dans le matériau ou à cha cune des extrémités du manchon pour permettre la détection de celui- ci par les méthodes ultrasoniques (échographie par exemple), - l'incorporation au manchon d'un réservoir gonflable permettant d'ajus ter la pression de contention, etc. It will be noted that, from the point of view of mechanical deformability, the structure of the sleeve makes it perfectly reversible - unlike, here again, clips or other similar devices hitherto used. Various improvements can be envisaged, for example - radiopaque labeling of the sleeve, - one or more air bubbles incorporated into the material or at each of the ends of the sleeve to allow detection thereof by ultrasonic methods ( ultrasound for example), - the incorporation into the sleeve of an inflatable tank allowing the compression pressure to be adjusted, etc.

L'application à la phlébologie n'est bien entendu pas limitative et d'autres indications peuvent être citées, notamment le traitement des anévrismes artériels, ou encore une utilisation à des fins expérimentales pour créer mécaniquement des sténoses sur divers canaux anatomiques, le dispositif pouvant être aisément retiré sans altérer les tissus.The application to phlebology is of course not limiting and other indications can be cited, in particular the treatment of arterial aneurysms, or even a use for experimental purposes to mechanically create stenoses on various anatomical channels, the device being able to be easily removed without damaging the tissue.

Claims (7)

REVENDICATIONS 1. Une structure de contention d'un canal anatomique, notamment d'un vaisseau, comprenant un manchon rétractable apte à être posé autour de ce canal, caractérisé en ce que le manchon est un manchon en matériau élastiquement déformable apte à solliciter radialement vers l'intérieur la paroi du canal de manière sensiblement uniforme sur la périphérie de cette paroi.1. A containment structure of an anatomical canal, in particular of a vessel, comprising a retractable sleeve capable of being placed around this channel, characterized in that the sleeve is a sleeve made of elastically deformable material capable of urging radially towards the inside the wall of the channel in a substantially uniform manner around the periphery of this wall. 2. La structure de la revendication 1, dans laquelle le manchon est un manchon tubulaire fendu, avec une fente s'étendant d'une extrémité à l'autre du manchon.2. The structure of claim 1, wherein the sleeve is a split tubular sleeve, with a slot extending from one end to the other of the sleeve. 3. La structure de la revendication 2, dans laquelle le manchon est réalisé à partir d'un tube de silicone, par découpe d'une longueur dans ce tube puis entaille de cette longueur de tube pour y former la fente.3. The structure of claim 2, wherein the sleeve is made from a silicone tube, by cutting a length in this tube and then cutting this length of tube to form the slot. 4. La structure de la revendication 2, dans laquelle la fente est une fente hélicoïdale.4. The structure of claim 2, wherein the slot is a helical slot. 5. La structure de la revendication 4, dans laquelle le pas d'hélice de la fente est choisi, en fonction du diamètre de la longueur du manchon, de manière que la fente forme au moins deux tours d'une extrémité à l'autre du manchon.5. The structure of claim 4, in which the helix pitch of the slot is chosen, as a function of the diameter of the length of the sleeve, so that the slot forms at least two turns from one end to the other of the sleeve. 6. La structure de la revendication 1, dans laquelle le matériau du man chon est un élastomère de silicone.The structure of claim 1, wherein the material of the sleeve is a silicone elastomer. 7. La structure de la revendication 6, dans laquelle l'élastomère de sili cone est un élastomère à base de polymères d'organosiliconeslorganosi- loxanes. 7. The structure of claim 6, wherein the silica elastomer is an elastomer based on polymers of organosiliconeslorganosiloxanes.
FR9911999A 1999-09-27 1999-09-27 Retaining structure for an anatomical canal, in particular, a blood vessel takes the form of an elastic slit tube which is placeable around the canal or blood vessel, and is capable of assuming its original shape Pending FR2798840A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9911999A FR2798840A1 (en) 1999-09-27 1999-09-27 Retaining structure for an anatomical canal, in particular, a blood vessel takes the form of an elastic slit tube which is placeable around the canal or blood vessel, and is capable of assuming its original shape
FR9914386A FR2798838A1 (en) 1999-09-27 1999-11-16 STRUCTURE FOR CONTAINING AN ANATOMICAL CHANNEL, IN PARTICULAR A VESSEL
AU76679/00A AU7667900A (en) 1999-09-27 2000-09-27 Retaining structure for anatomical canal, in particular a vessel
PCT/FR2000/002675 WO2001022888A1 (en) 1999-09-27 2000-09-27 Retaining structure for anatomical canal, in particular a vessel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9911999A FR2798840A1 (en) 1999-09-27 1999-09-27 Retaining structure for an anatomical canal, in particular, a blood vessel takes the form of an elastic slit tube which is placeable around the canal or blood vessel, and is capable of assuming its original shape
FR9914386A FR2798838A1 (en) 1999-09-27 1999-11-16 STRUCTURE FOR CONTAINING AN ANATOMICAL CHANNEL, IN PARTICULAR A VESSEL

Publications (1)

Publication Number Publication Date
FR2798840A1 true FR2798840A1 (en) 2001-03-30

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Family Applications (2)

Application Number Title Priority Date Filing Date
FR9911999A Pending FR2798840A1 (en) 1999-09-27 1999-09-27 Retaining structure for an anatomical canal, in particular, a blood vessel takes the form of an elastic slit tube which is placeable around the canal or blood vessel, and is capable of assuming its original shape
FR9914386A Pending FR2798838A1 (en) 1999-09-27 1999-11-16 STRUCTURE FOR CONTAINING AN ANATOMICAL CHANNEL, IN PARTICULAR A VESSEL

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR9914386A Pending FR2798838A1 (en) 1999-09-27 1999-11-16 STRUCTURE FOR CONTAINING AN ANATOMICAL CHANNEL, IN PARTICULAR A VESSEL

Country Status (3)

Country Link
AU (1) AU7667900A (en)
FR (2) FR2798840A1 (en)
WO (1) WO2001022888A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328689B1 (en) 2000-03-23 2001-12-11 Spiration, Inc., Lung constriction apparatus and method
US6860847B2 (en) * 2001-07-10 2005-03-01 Spiration, Inc. Constriction device viewable under X ray fluoroscopy
US6491706B1 (en) * 2001-07-10 2002-12-10 Spiration, Inc. Constriction device including fixation structure
WO2008144377A1 (en) * 2007-05-17 2008-11-27 Wilson-Cook Medical Inc. Radiopaque band ligator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150666A (en) * 1963-01-07 1964-09-29 Louis H Averbach Umbilical cord ligation device
US3726279A (en) * 1970-10-08 1973-04-10 Carolina Medical Electronics I Hemostatic vascular cuff
US4881939A (en) * 1985-02-19 1989-11-21 The Johns Hopkins University Implantable helical cuff
WO1988000455A1 (en) * 1986-07-17 1988-01-28 Quotidian No. 100 Pty. Limited Control of blood flow to an organ
DE3939840A1 (en) * 1989-12-01 1991-06-06 Zeljko Milosevic IMPLANTABLE OCCLUDER
WO1996038090A1 (en) * 1995-06-01 1996-12-05 Moskovsky Gosudarstvenny Institut Stali I Splavov Tekhnologichesky Universitet Method of extravascular correction of the function of incompetent vein valves and an extravascular corrector for that purpose

Also Published As

Publication number Publication date
WO2001022888A1 (en) 2001-04-05
FR2798838A1 (en) 2001-03-30
AU7667900A (en) 2001-04-30

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