FR2606642A1 - Element to be implanted in a vein, and device carrying this element - Google Patents

Element to be implanted in a vein, and device carrying this element Download PDF

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Publication number
FR2606642A1
FR2606642A1 FR8616043A FR8616043A FR2606642A1 FR 2606642 A1 FR2606642 A1 FR 2606642A1 FR 8616043 A FR8616043 A FR 8616043A FR 8616043 A FR8616043 A FR 8616043A FR 2606642 A1 FR2606642 A1 FR 2606642A1
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Prior art keywords
element
members
characterized
means
device
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FR8616043A
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French (fr)
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FR2606642B1 (en )
Inventor
Michel Camus
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GARDETE JACQUES
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GARDETE JACQUES
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/01Filters implantable into blood vessels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/01Filters implantable into blood vessels
    • A61F2002/011Instruments for their placement or removal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/01Filters implantable into blood vessels
    • A61F2002/016Filters implantable into blood vessels made from wire-like elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006Properties of materials and coating materials
    • A61F2002/3008Properties of materials and coating materials radio-opaque, e.g. radio-opaque markers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/30364Rotation about the common longitudinal axis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/3037Translation along the common longitudinal axis, e.g. piston
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30667Features concerning an interaction with the environment or a particular use of the prosthesis
    • A61F2002/30677Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028Shapes in the form of latin or greek characters
    • A61F2230/005Rosette-shaped, e.g. star-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0065Three-dimensional shapes toroidal, e.g. ring-shaped, doughnut-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0067Means for introducing or releasing pharmaceutical products into the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Abstract

The invention relates to an element to be implanted at least temporarily in a vein, and in particular an element for filtering the blood flowing in a vein. It is characterised in that the opposite ends 6, 7 of at least some of the branches 2 of the element 1 are interposed between two members 8, 9 connected together by a means 10 allowing their relative positions, and in particular separation, to be altered, so that, by acting on these means 10: - on the one hand, bringing the said members substantially along the longitudinal axis 31 of the element 1 towards a position termed the active position of the element ensures that the branches 2 will be at least slightly curved, and - on the other hand, separation of the said members 8, 9 substantially along the same longitudinal axis towards a position termed the rest position ensures that the branches 2 will straighten at least partially, and in particular proportionately to the movement of the members 8, 9. <IMAGE>

Description

L'invention se rapporte à un élément à implanter au moins provisoirement dans une veine et notamment à un élément de filtrage du sang circulant dans une veine et au dispositif porteur de cet é1e'n'#nt. The invention relates to an element to be implanted at least temporarily into a vein and including a filter element of the blood flowing in a vein and the rack of this é1e'n '# nt.

Non limitativement l'invention intéresse les éléments filtrants du type de ceux qui sont utilisés pour effectuer le filtrage temporaire et localisé du sang circulant dans la veine cave d'un être humain, notamment dans le but de retenir des caillots susceptibles d'entrainer une embolie pulmonaire chez un patient. The invention concerns not restrictively the filter elements of the type which are used for the temporary and localized filter the blood flowing in the vena cava of a human being, especially in order to retain clots may cause emboli lung in a patient.

L'invention se rapporte plus particulièrement à un élément filtrant du type de ceux qui, sous anesthésie locale du patient, peuvent être dans un premier temps implantés dans sa veine cave inférieure par voie intraveineuse, notamment par introduction dans la veine jugulaire interne ou la veine fémorale, puis dans un second temps, notamment après dissolution des caillots au moyen d'agent à cet effet, être retirés par la même voie. The invention relates more particularly to a filter element of the type which, under local anesthesia of the patient can be initially implanted in the inferior vena cava intravenously, in particular by introducing into the internal jugular vein or the vein femoral, and then in a second stage, especially after dissolution of the clots by means of for this purpose agent, be removed by the same route.

Pour obtenir le filtrage localisé et temporaire de la veine cave inférieure, il est connu FR-A-2.580.504 d'utiliser un élément filtrant composé d'une pluralité de branches reliées entre elles par l'une de leurs extrémités et qui jointives au repos peuvent, à la manière des branches d'une ombrelle, être déployées de manière réversible par un moyen à cet effet, notamment actionnable à distance. For localized temporary filter and the inferior vena cava, it is known FR-A-2580504 to use a filter element composed of a plurality of legs interconnected by one of their ends and joined to rest may, in the manner of the branches of an umbrella, be deployed in a reversible manner by a means for this purpose, including remotely operable.

Pour cela, l'élément filtrant en question est porté à l'extrémité distale d'un cathéter dont l'extrémité proximale reste en dehors du corps du patient et comprend des organes pour actionner le moyen de déploiement et/ou de repli des branches. For this, the filter element in question is brought to the distal end of a catheter whose proximal end remains outside the patient's body and comprises members for actuating the deployment means and / or withdrawal of the branches.

Le dispositif à cathéter et élément filtrant donne de très bons résultats mais on lui reproche tout de même de ne pas offir de possibilité suffisamment large de réglage de la capacité de filtrage de l'élément filtrant. The catheter device and filter element gives very good results but is accused still not wide enough offir possibility of adjusting the filtering capacity of the filter element.

En outre, pour pouvoir être introduit dans la veine et déplacée vers son point d'action, l'élément filtrant doit être placé dans un logement prévu à cet effet à l'extrémité distale du cathéter d'où on l'extrait uniquement avant de commander son expansion. In addition, to be introduced into the vein and moved to its point of action, the filter element must be placed in a housing provided for this purpose at the distal end of the catheter from which it extracts only before controlling its expansion.

En effet, a défaut d'être placé dans un logement pendant sa migration vers la veine cave inférieure, par l'extrémité distale de ses branches, l'élément filtrant accroche la paroi de la veine qu'il parcourt, ce qui risque d'altérer non seulement les dites branches mais surtout les parois de la veine contre laquelle ces dernières se déplacent. Indeed, in the absence of being placed in a housing during its migration towards the inferior vena cava, through the distal end of its branches, the filter element engages the wall of the vein that runs, which is likely to alter not only the said branches but above the vein walls against which the latter move.

Un résultat. A result. que l'invention vise à obtenir est un élément filtrant et un dispositif porteur de cet élément qui ne présentent pas les inconvénients précités. that the invention aims to obtain is a filter element and a support device of this element which does not present the aforementioned drawbacks.

A cet effet, l'invention a pour objet un élément filtrant et son dispositif porteur, lequel élément étant notamment caractérisé en ce que les extrémités opposées d'au moins certaines des branches de l'élément filtrant sont interposées entre deux organes reliés par un moyen permettant d'en modifier les positions relatives et notamment l'écartement de manière telle que, par action sur ce moyen, d'une part le rapprochement des dits organes sensiblement selon l'axe longitudinal de l'élément vers une position dite position active de l'élément assure que les branches subissent au moins une certaine courbure et, d'autre part, l'éloignement des dits organes sensiblement suivant le même axe longitudinal vers une position dite position de repos de l'élément assure que les branches se redressent au moins partiellement et ce proportionnellement au déplacement des organes. To this end, the invention relates to a filter element and the holder device, which element is particularly characterized in that the opposite ends of at least some of the branches of the filter element are interposed between two members connected by means allows to change the relative positions including the gap so that, by the action of this means, on the one hand the approximation of said members substantially along the longitudinal axis of the element to a position called operative position the element ensures that the limbs undergo at least a certain curvature and, on the other hand, the removal of said members substantially along the same longitudinal axis toward a so-called rest position the element position ensures that the branches straighten the least partially and proportionally to the movement of organs.

L'invention sera bien comprise à l'aide de la description ci-après faite à titre d'exemple non limitatif en regard du dessin ci-annexé qui représente schématiquement The invention will be better understood using the following description given by way of nonlimiting example with reference to the attached drawing, which schematically represents
Figure 1 : l'élément filtrant de profil, Figure 1: the filter element profile,
Figure 2 : une coupe selon II-II de la figure 1, Figure 2: a section along II-II of Figure 1,
Figure 3 : l'élément filtrant vu de profil en position partiellement contracté dans une veine, Figure 3: the filter element seen from the side in a partially contracted position in a vein,
Figure 4 : une vue selon F de la figure 3, Figure 4: a view according to F in Figure 3,
Figure 5 : une vue selon F de la figure 3 après décalage angulaire des organes terminaux de l'élément filtrant, Figure 5: a view according to F in Figure 3 after angular offset of the terminal members of the filter element,
Figure 6 : une vue latérale d'une forme préférée de réalisation de l'élément filtrant, Figure 6: a side view of a preferred embodiment of the filter element,
Figure 7 : une vue en coupe longitudinale de l'élément représenté en figure 6, 7 is a longitudinal sectional view of the element shown in Figure 6,
Figure 8 : à plus faible échelle, l'élément filtrant selon l'invention équipé de son dispositif porteur et de mise en place. Figure 8: a smaller scale, the filter element according to the invention equipped with the holder device and set up.

En se reportant au dessin, on voit un élément à implanter au moins temporairement dans une veine 11 et notamment à un élément filtrant 1 qui comprend une pluralité de branches flexibles 2 qui, au repos, s'étendent sensiblement parallèlement entre elles selon les génératrices d'un cylindre virtuel 3 dont l'axe 31 définit globalement l'axe longitudinal de l'élément. Referring to the drawings, there is an element to be implanted at least temporarily into a vein 11 and including a filter element 1 which comprises a plurality of flexible branches 2 which, at rest, extend substantially parallel to each other along the generatrices of a virtual cylinder 3 with its axis 31 generally defines the longitudinal axis of the element.

Avantageusement, les branches pourront présenter une légère flèche vers l'extérieur du cylindre. Advantageously, the branches will have a slight outward deflection of the cylinder.

Tel que cela apparaît également sur les figures, l'élément filtrant 1 est porté par l'extrémité distale 51 d'un dispositif 5 de mise en place tel un cathéter 4. As it also appears from the figures, the filter element 1 is carried by the distal end 51 of a device 5 for setting up such a catheter 4.

Selon l'invention les extrémités opposées 6, 7 d'au moins certaines des branches 2 de l'élément filtrant 1 sont interposées entre deux organes 8, S reliés entre eux par un moyen 10 permettant d'en modifier les positions relatives et notamment l'écartement de manière telle que, par action sur ce moyen 10 According to the invention the opposite ends 6, 7 of at least some of the arms 2 of the filter element 1 are interposed between two members 8, S interconnected by means 10 allowing to change the relative positions and in particular spacing such that, by acting on the means 10
- d'une part, le rapprochement des dits organes sensiblement selon l'axe 31 longitudinal de l'élément 1 vers une position dite position active de l'élément assure que les branches 2 suivront au moins une certaine courbure et donc induiront l'expansion transversale de l'élément et, - firstly, the approximation of said members substantially along the longitudinal axis 31 of the element 1 to a position called active position of the element ensures that the legs 2 will follow at least a certain curvature and thus induce expansion transverse of the element and,
- d'autre part, l'éloignement des dits organes 8, 9 sensiblement suivant le même axe longitudinal vers une position dite de repos assure que les branches 2 se redresseront au moins partiellement et ce notamment proportionnellement au déplacement des organes 8, 9. - secondly, the removal of said members 8, 9 substantially in the same longitudinal axis toward a so-called rest position ensures that the legs 2 will recover at least partially and in particular in proportion to the displacement of the members 8, 9.

Dans un mode préféré de réalisation, toutes les branches de l'élément filtrant sont interposées entre les deux organes 8, 9 précités. In a preferred embodiment, all branches of the filter element are interposed between the two bodies 8, 9 mentioned above. De manière avantageuse les branches se plient sensiblement en V lors d'un rapprochement des organes de l'élément filtrant. Advantageously branches substantially V fold at one approximation of the bodies of the filter element.

De préférence, les extrémités des branches sont solidaires des organes terminaux 8, 9. Preferably, the ends of the legs are integral with the terminal members 8, 9.

La légère flèche évoquée plus haut assure que le pliage se fera dans le sens convenable. The small arrow mentioned above ensures that the folding will be in the appropriate direction.

De cette manière, l'élément se centre dans la veine dans laquelle il est déployé. In this way, the element is centered in the vein into which it is deployed.

Conformément à l'invention, les extrémités 6, 7 d'au moins certaines des branches 2 de l'élément filtrant sont interposées entre des organes 8, 9 reliés entre eux par un moyen 10 permettant de commander un décalage angulaire A d'un organe par rapport à l'autre autour de l'axe longitudinal 31 de l'élément, ce décalage angulaire étant alors sensiblement indentique pour toutes les branches interposées entre les dits organes 8, 9 qui constituent l'un 8 l'extrémité proximale 81 de l'élément filtrant tandis que l'autre 9 constitue l'extrémité distale 91 du même élément. According to the invention, the ends 6, 7 of at least some of the branches of the filter element 2 are interposed between bodies 8, 9 joined together by a means 10 for controlling an angular displacement A of an organ relative to each other about the longitudinal axis 31 of the element, this angular offset being then substantially indentique for all branches interposed between said members 8, 9 which constitute one 8 the proximal end 81 of the filter element while the other 9 constitutes the distal end 91 of the element.

Avantageusement, la longueur des branches de l'élément est adaptée au diamètre de la veine dans laquelle l'élément est destiné à être déployé et ce manière telle que les organes terminaux 8, 9 puissent venir en butée l'un contre l'autre en position active de l'élément sans pour autant que les branches courbées ne détériorent la paroi de la veine 11. Advantageously, the length of the branches of the element is adapted to the diameter of the vein in which the element is intended to be deployed and so that the terminal members 8, 9 may abut against each other in active position of the element without the curved branches from damaging the wall of the vein 11.

Suivant l'invention, le moyen d'actionnement 10 comprend au moins deux parties constitutives 12, 13 qui, d'une part sont chacune associée à l'un des organes terminaux 8, 9 de 1 'élément filtrant 1 et d'autre part sont mobiles entre elles au moins en translation selon l'axe longitudinal 31 de l'elementl. According to the invention, the actuating means 10 comprises at least two component parts 12, 13 which, on the one hand are each associated with one of the end members 8, 9 of one filter element 1 and the other are movable together at least in translation along the longitudinal axis 31 of the elementl.

De préférence les dites parties constitutives sont également mobiles entre elles en rotation selon l'axe longitudinal de l'élément 1. Preferably the said component parts are movable relative to each rotating along the longitudinal axis of the element 1.

Selon l'invention, le moyen d'actionnement 10 est formé par le dispositif 5 de mise en place de l'élément qui à ce effet, comprend deux parties longilignes 12, 13 qui, d'une part sont coulissantes et libres en rotation, l'une 13 dans l'autre 12 et, d'autre part dont les extrémités distales 121, 131 sont chacune associée à l'un des organes terminaux 8, 9 de l'élément 1. According to the invention, the actuating means 10 is formed by the device 5 for implementation of the element which at that end, comprises two elongate portions 12, 13 which, on the one hand are sliding and freely rotatable, to 13 in the other 12 and the other having distal ends 121, 131 are each associated with one of the end members 8, 9 of the element 1.

De préférence, les deux parties longilignes 12, 13 sont tubulaires et de diamètre compatible entre elles. Preferably, the two elongate portions 12, 13 are tubular and diameter compatible therebetween. Bien entendu le diamètre extérieur de la partie extérieure 12 est compatible avec celui de la plus petite des veines dans lesquelles va être introduit le dispositif. Of course the outside diameter of the outer part 12 is compatible with that of the smaller veins in which the device will be introduced.

La partie tubulaire extérieure 12 du dispositif de mise en place 5 de l'élément 1 est par son extrémité distale 121 liée à l'extrémité proximale 81 de l'élément filtrant et, la partie intérieure 13 du même dispositif 5 traverse quant à elle sensiblement axialement l'extrémité proximale 81 de l'élément filtrant et se trouve liée à l'extrémité distale 91 dudit élément, c'est-à-dire à l'organe terminal 9. The outer tubular part 12 of the element 1 in place of 5 delivery device is at its distal end 121 connected to the proximal end 81 of the filter element and the inner part 13 of the device 5 passes through in turn substantially axially proximal end 81 of the filter element and is bonded to the distal end 91 of said element that is to say, the terminal member 9.

Le dispositif 5 de mise en place de l'élément filtrant est, à son extrémité proximale 52, équipé d'au moins un moyen 14 de déplacement en translation de ces deux parties coulissantes 12, 13, l'une par rapport à l'autre. 5 to set up device of the filter element is at its proximal end 52, equipped with at least one means 14 for translational movement of these two slide portions 12, 13 relative to each other .

Le dispositif 5 de ## mise en place est également à son extrémité proximale 52 équipée d'au moins un moyen 15 de déplacement en rotation de ces deux parties 12, 13 l'une par rapport à l'autre. The device 5 of ## implementation is also at its proximal end 52 with at least one means 15 for rotational movement of these two parts 12, 13 relative to each other.

De préférence, tant le moyen de déplacement en translation 11 que le moyen de déplacement en rotation 15 sont constitués par des organes 16, 17 qui permettent de commander manuellement les mouvements relatifs des parties constitutives 12, 13 du dispositif 5. Preferably, both the translational movement means 11 that the rotational displacement means 15 are constituted by bodies 16, 17 which allow to manually control the relative movements of the constituent parts 12, 13 of the device 5.

Avantageusement le dispositif est également à son extrémité proximale 5 équipé d'au moins un moyen de blocage 18 de la position relative tant en translation qu'en orientation de ses parties constitutives 12, 13. Advantageously, the device is also at its proximal end 5 provided with at least one locking means 18 of the position both translationally and orientation of its constituent parts 12, 13.

De préférence, le dispositif comprend également à son extrémité proximale 52 au moins un moyen d'indexation 19 tant en translation qu'en orientation de ses parties constitutives 12, 13 l'une par rapport à l'autre. Preferably, the device also includes at its proximal end 52 at least one means 19 as indexing in translation in direction of its constituent parts 12, 13 relative to each other.

Dans un mode préféré de réalisation, l'élément filtrant 1 est directement réalisé au niveau de l'extrémité distale 121 de la partie tubulaire dite extérieure 12 du dispositif de mise en place 5, notamment au moyen de découpes 20 qui délimitent les branches 2. In a preferred embodiment, the filter element 1 is carried out directly at the distal end 121 of the outer tubular part 12 of said installation device 5, in particular by means of cuts 20 which define the two branches.

Dans ce cas, on ne distingue pas les extrémités distales 121, 131 des parties tubulaires 12, 13 de celles des extrémités proximales 81 et distales de l'élément 1. In this case, we do not distinguish the distal ends 121, 131 of the tubular portions 12, 13 from those of the proximal 81 and distal ends of the element 1.

En effet, les organes terminaux 8, 9 de l'élément ne sont plus a ce moment discernables. Indeed, the end organs 8, 9 of the element are not discernible at this time.

C'est pour cette raison que sur la figure 6, ces organes terminaux 8, 9 sont représentés en traits mixtes fins. It is for this reason that in Figure 6, these terminal devices 8, 9 are shown in dashed thin lines.

Selon l'invention, les découpes 20 sont orientées sensiblement parallèlement à l'axe longitudinal 31 de l'élément filtrant. According to the invention, the blanks 20 are oriented substantially parallel to the longitudinal axis 31 of the filter element. Suivant l'invention, les découpes 20 sont réalisées en hélice. According to the invention, the cutouts 20 are made helical.

De préférence l'extrémité distale de l'élément filtrant est en outre équipée d'un organe radio-opaque (non représenté). Preferably the distal end of the filter element is further equipped with a radio-opaque member (not shown).

De manière également préférentielle, la partie coulissante intérieure 13 du dispositif de mise en place est tubulaire et son extrémité distale 131 est de diamètre intérieur D au moins suffisant pour recevoir un élément filtrant largable de type connu (non représenté) ou en vue de l'injection de produit, le débit dans ce tube est alors contrôlé par un organe non représenté. Also preferentially, the inner slide portion 13 of the delivery device is tubular and its distal end 131 is an internal diameter D at least sufficient to accommodate a known type of releasable filter element (not shown) or to the Fluid injected, the flow rate in the tube is then controlled by a not shown body.

Dans une variante de réalisation,I 'extrémité distale de l'élément dit filtrant est pourvue d'un réceptacle tubulaire dans lequel prend place un élément filtrant largable du type précité. In an alternative embodiment, I distal end of the filter said element is provided with a tubular receptacle in which takes place a releasable filter element of the aforementioned type.

L'expansion transversale de l'élément 1 situe à l'extrémité distale 51 du dispositif de mise en place 5 permet donc le centrage de cette extrémité dans la veine 11 à l'intérieur de laquelle il a été introduit et donc celui du filtre largable retenu à cette extrémité avant son largage. The transverse expansion of the element 1 located at the distal end 51 of the up setting device 5 allows the centering of this end in the duct 11 within which it has been introduced and thus that of the releasable filter retained at that end before its release.

Ainsi constitué, on comprend que pour déployer ou relier les branches de l'élément filtrant, il suffit de déplacer l'une par rapport à l'autre, notamment en translation, les parties constitutives 12, 13 du dispositif de mise en place 5 notamment en agissant sur les moyens prévus à cet effet. Thus constituted, it is understood that to deploy or connecting branches of the filter element, it is sufficient to move one with respect to another, in particular in translation, the component parts 12, 13 of the introduction device 5 including by acting on the means provided for this purpose.

Pour, de préférence en position déployée de l'élément filtrant 1, obtenir un décalage angulaire des organes 8, 9 autour de l'axe longitudinal 31 dudit élément et par cela décaler angulairement entre elles les parties courbes de chaque branche, il suffit d'imprimer aux parties constitutives 12, 13 du dispositif 5 de mise en place, des mouvements de rotation antagonistes. For deployed preferably in position of the filter element 1, to obtain an angular displacement of the members 8, 9 about the longitudinal axis 31 of said element and thereby angularly shifting together the curved portions of each leg, it is sufficient to print the component parts 12, 13 of the device 5 in place, antagonists rotational movements.

Pour ce décalage angulaire des parties courbes des branches de l'élément filtrant sensiblement dans un plan normal à l'axe longitudinal de l'élément, on obtient le réglage de la capacité de filtrage de l'élément filtrant. For this angular offset of the curved portions of the legs of the filter element substantially in a plane normal to the longitudinal axis of the element, one obtains the filtering capacity adjustment of the filter element.

De préférence, les branches 2 présenteront une zone 21 de pliage et/ou de courbure délimitée par exemple par un amoindrissement local de section ou une section transversale présentant localement une moindre résistance à la flexion. Preferably, the branches 2 present a zone 21 of folding and / or bending delimited for example by a locally reduced section or a cross section locally having a lower resistance to bending.

Claims (10)

    REVENDICATIONS
  1. 1. Elément à implanter au moins provisoirement dans une veine et notamment élément de filtrage (1) du sang circulant dans une veine et dispositif de mise en place (5) de cet élément, lequel élément filtant (1) comprend une pluralité de branches flexibles (2) qui au repos s'étendent sensiblement parallèlement entre elles globalement selon les génératrices d'un cylindre virtuel (3) d'axe longitudinal (31), cet élément est porté à l'extrémité distale (51) du dispositif de mise en place et CARACTERISE en ce que les extrémités opposées (6, 7) d'au moins certaines de ses branches (2) sont interposées entre deux organes (8, 9) reliés entre eux par un moyen (10) permettant d'en modifier les positions relatives et notamment l'écartement de manière telle que, par action sur ce moyen (10) 1. The element to be implanted at least temporarily into a vein and including filter element (1) of the blood flowing in a vein and positioning device (5) thereof, wherein filtant element (1) comprises a plurality of flexible branches (2) break extend substantially parallel to one another generally along the generatrices of an imaginary cylinder (3) with a longitudinal axis (31), this element is carried at the distal end (51) of the setting device square and characterized in that the opposite ends (6, 7) of at least some of its branches (2) are interposed between two members (8, 9) interconnected by means (10) for modifying the relative positions including the gap so that, by acting on the means (10)
    - d'une part, le rapprochement des dits organes sensiblement selon l'axe (31) longitudinal de l'élément (1) vers une position dite position active de l'élément assure que les branches (2) suivront au moins une certaine courbure et donc induiront l'expansion transversale de l'élément et, - firstly, the approximation of said members substantially along the axis (31) of the longitudinal member (1) towards a so-called active position of the position element ensures that the legs (2) will follow at least some curvature and thus induce the transverse expansion of the element and,
    - d'autre part, l'éloignement des dits organes (8, 9) sensiblement suivant le même axe longitudinal vers une position dite de repos assure que les branches (2) se redresseront au moins partiellement et ce notamment proportionnellement au déplacement des organes (8, 9). - secondly, the removal of said members (8, 9) substantially along the same longitudinal axis toward a so-called rest position ensures that the legs (2) will recover at least partially and in particular in proportion to the displacement bodies ( 8, 9).
  2. 2. Elément selon la revendication (1) CARACTERISE en ce que les extrémités (6, 7) d'au moins certaines de ses branches (2) sont interposées entre des organes (8, 9) reliés entre eux par un moyen (10) permettant de commander un décalage angulaire (A) d'un organe par rapport à l'autre autour de l'axe longitudinal (31)- de l'élément, ce décalage angulaire étant alors sensiblement indentique pour toutes les branches interposées entre les dits organes (8, 9) qui constituent l'un (8) l'extrémité proximale (81) de l'élément filtrant tandis que l'autre (9) constitue l'extrémité distale (91) du même élément. 2. Element according to claim (1) characterized in that the ends (6, 7) of at least some of its branches (2) are interposed between the members (8, 9) interconnected by means (10) for controlling an angular offset (a) of a member relative to another about the longitudinal axis (31) - of the element, this angular offset being then substantially indentique for all branches interposed between said bodies (8, 9) constituting one (8) the proximal end (81) of the filter element while the other (9) constitutes the distal end (91) of the same element.
  3. 3. Elêment selon la revendication 1 ou 2 CARACTERISE en ce que le moyen d'actionnement (10) comprend au moins deux parties constitutives (12, 13) qui, d'une part sont chacune associée à l'un des organes terminaux (8, 9) de l'élément filtrant (1) et d'autre part sont mobiles entre elles selon l'axe longitudinal (31) de l'élément (i) ce, au moins en translation. 3. Element according to claim 1 or 2 CHARACTERIZED in that the actuating means (10) comprises at least two component parts (12, 13) which, on the one hand are each associated with one of the end members (8 , 9) of the filter element (1) and secondly are movable together along the longitudinal axis (31) of the member (i) that, at least in translation.
  4. 4. Elément selon l'une quelconque des revendications 1 à 3 4. Element according to any one of claims 1 to 3
    CARACTERISE en ce que le moyen d'actionnement (10) est forme par le dispositif (5) de mise en place de l'élément. CHARACTERIZED in that the actuating means (10) is formed by the device (5) for introduction of the element.
  5. 5. Element selon l'une quelconque des revendications 1 à 4 5. Element according to any one of claims 1 to 4
    CARACTERISE en ce que le dispositif (5) de mise en place comprend deux parties longilignes (12, 13) qui, d'une part sont coulissantes et libres en rotation, l'une (13) dans l'autre (12) et, d'autre part dont les extrémités distales (121, 131) sont chacune associée à l'un des organes terminaux (8, 9) de l'élément (1). CHARACTERIZED in that the device (5) of setting up comprises two elongate parts (12, 13) which, on the one hand and are slidable freely rotatably, one (13) in the other (12) and, secondly the distal ends (121, 131) are each associated with one of the end members (8, 9) of the element (1).
  6. 6. Elément selon la revendication 5 CARACTERISE en ce que les deux parties longilignes (12, 13) du dispositif (5) de mise en place sont tubulaires et de diamètre compatible entre elles. 6. Element according to Claim 5 CHARACTERIZED in that the two elongate parts (12, 13) of the device (5) establishment are tubular and of consistent diameter therebetween.
  7. 7. Elément selon la revendication 4 ou 5 CARACTERISE en ce que l'extrémité proximale (52) du dispositif (5) de mise en place est équipée, d'une part d'au moins un moyen (14) de déplacement en translation de ces deux parties (12, 13) l'une par rapport à l'autre et, d'autre part d'au moins un moyen (15) de déplacement en rotation de ces deux parties (12, 13) l'une par rapport à l'autre. 7. Element according to claim 4 or 5 CHARACTERIZED in that the proximal end (52) of the device (5) establishment is equipped on the one hand at least one means (14) for translational movement these two parts (12, 13) relative to each other and, on the other hand at least one means (15) for rotational movement of these two parts (12, 13) relative to the other.
  8. 8. Elément selon l'une quelconque des revendications 4 à 7 8. Element according to any one of claims 4 to 7
    CARACTERISE en ce que le dispositif (5) de mise en place comprend également à son extrémité proximale (52) au moins un moyen d'indexation (19) tant en translation qu'en orientation de ses parties constitutives (12, 13) l'une par rapport à l'autre. CHARACTERIZED in that the device (5) of setting up further includes at its proximal end (52) at least one indexing means (19) both translationally and orientation of its constituent parts (12, 13) the with respect to each other.
  9. 9. Element selon l'une quelconque des revendications 5 à 8 9. Element according to any one of claims 5 to 8
    CARACTERISE en ce que l'élément (1) est directement réalisé au niveau de l'extrémité distale (121) de la partie tubulaire dite extérieure (12) du dispositif de mise en place (5), notamment au moyen de découpes (20) qui délimitent les branches (2). CHARACTERIZED in that the element (1) is carried out directly at the distal end (121) of the outer said tubular portion (12) of the delivery device (5), in particular by cutouts (20) which delimit the legs (2).
  10. 10. Elément selon l'une quelconque des revendications 5 à 9 CARACTERISE en ce que la partie coulissante intérieure (13) du dispositif de mise en place est tubulaire et son extrémité distale (131) est de diametre intérieur (D) au moins suffisant pour recevoir un élément filtrant largable de type connu où en vue de l'injection de produit, le débit dans ce tube est alors contrôlé par un organe. 10. Element according to any one of claims 5 to 9 characterized in that the inner slide portion (13) of the positioning device is tubular and its distal end (131) of inside diameter (D) at least sufficient to receiving a releasable filter element of known type which for the fluid injection, the flow rate in the tube is then controlled by an organ.
FR8616043A 1986-11-14 1986-11-14 Element to be implanted in a vein and rack of this element Expired FR2606642B1 (en)

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FR8616043A FR2606642B1 (en) 1986-11-14 1986-11-14 Element to be implanted in a vein and rack of this element

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FR2606642B1 FR2606642B1 (en) 1989-04-28

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EP0743046A1 (en) * 1995-05-19 1996-11-20 Cordis Europa N.V. Filter catheter
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US4950224A (en) * 1988-08-05 1990-08-21 Healthdyne, Inc. Apparatus and method for in vivo plasma separation
US5152743A (en) * 1988-08-05 1992-10-06 Healthdyne, Inc. Apparatus and method for selective separation of blood cholesterol
US5242382A (en) * 1988-08-05 1993-09-07 Healthdyne, Inc. Apparatus and method for direct measurement of blood parameters
US5224926A (en) * 1988-08-05 1993-07-06 Healthdyne, Inc. Transvivo plasma extraction catheter device
EP0771549A3 (en) * 1989-12-13 1997-07-30 Lefebvre Jean Marie Filter-catheter
EP0437121A3 (en) * 1989-12-13 1991-11-06 Jean-Marie Lefebvre Filter-catheter combination
EP0437121A2 (en) * 1989-12-13 1991-07-17 LEFEBVRE, Jean-Marie Filter-catheter combination
US5421832A (en) * 1989-12-13 1995-06-06 Lefebvre; Jean-Marie Filter-catheter and method of manufacturing same
EP0771550A2 (en) 1989-12-13 1997-05-07 Jean-Marie Lefebvre Process for manufacturing a filter-catheter, and filter-catheter
EP0771550A3 (en) * 1989-12-13 1997-08-20 Lefebvre Jean Marie Process for manufacturing a filter-catheter, and filter-catheter
FR2655533A1 (en) * 1989-12-13 1991-06-14 Lefebvre Jean Marie Filter catheter.
EP0771549A2 (en) 1989-12-13 1997-05-07 Jean-Marie Lefebvre Filter-catheter
US5601568A (en) * 1994-04-11 1997-02-11 B. Braun Celsa (Societe Anonyme) Handle for the controlled relative sliding of a sheath and of a stem; apparatus comprising such a handle and method for implanting a blood filter using a handle
EP0737450A1 (en) * 1995-04-10 1996-10-16 Cordis Europa N.V. Catheter with filter and thrombidischarge device
NL1000105C2 (en) * 1995-04-10 1996-10-11 Cordis Europ Catheter with filter and thrombus removal device.
US5795322A (en) * 1995-04-10 1998-08-18 Cordis Corporation Catheter with filter and thrombus-discharge device
NL1000400C2 (en) * 1995-05-19 1996-11-20 Cordis Europ Catheter structure e.g. to break down thrombi in vascular system
EP0743046A1 (en) * 1995-05-19 1996-11-20 Cordis Europa N.V. Filter catheter
US8025674B2 (en) 1995-11-07 2011-09-27 Edwards Lifesciences Corporation Cannula with associated filter and methods of use during cardiac surgery
US8840636B2 (en) 1995-11-07 2014-09-23 Edwards Lifesciences Corporation Cannula with associated filter and methods of use during cardiac surgery
US6136016A (en) * 1995-11-07 2000-10-24 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
US6117154A (en) * 1995-11-07 2000-09-12 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
EP0956074A4 (en) * 1995-11-07 1999-11-24
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