FR2587901A1 - Device intended to stop the circulation of thrombi in vessels - Google Patents

Device intended to stop the circulation of thrombi in vessels Download PDF

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Publication number
FR2587901A1
FR2587901A1 FR8514394A FR8514394A FR2587901A1 FR 2587901 A1 FR2587901 A1 FR 2587901A1 FR 8514394 A FR8514394 A FR 8514394A FR 8514394 A FR8514394 A FR 8514394A FR 2587901 A1 FR2587901 A1 FR 2587901A1
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FR8514394A
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French (fr)
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BOCQUEE HENRY
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BOCQUEE HENRY
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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
    • A61F2002/016Filters 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
    • 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
    • A61F2230/0073Quadric-shaped
    • A61F2230/008Quadric-shaped paraboloidal

Abstract

The subject of the invention is a device intended to stop the circulation of thrombi in vessels, of the type comprising elastic branches disposed regularly around a central axis and at least the end of some of which is fitted with hooks directed outwards for anchoring in the wall of the vessel; this device being characterised in that it comprises, on either side of a central connection body 1, and disposed regularly around a central axis 2, on the one hand, several elastic branches 3, 4a, 4b, 4c, 4d each consisting of a curved strand, substantially parallel to the central axis at the central body, and progressively separating from this axis beyond it, at least three of these regularly distributed branches 4a, 4b, 4c, 4d being fitted at their end with a hook 5 directed outwards, and on the other hand, at least three elastic branches 6 each consisting of a curved strand, substantially parallel to the central axis at this axis and progressively separating from this axis beyond it, and whose end 7 is curved back inwards. <IMAGE>

Description

La présente invention concerne un dispositif destiné à arrêter la circulation des thrombus dans les vaisseaux. The invention relates to a device designed to stop the flow of thrombus in the vessels.

La première technique qui a été utilisée pour arrêter la circulation des thrombus afin d'éviter leur remontée vers le coeur consiste à effectuer un pincement de la veine cave. The first technique that was used to stop the flow of thrombus to prevent their ascent to the heart is to perform a pinching of the vena cava. Cette technique nécessite toutefois une intervention chirurgicale. However, this technique requires surgery.

Depuis on a développé une autre technique qui consiste à introduire un filtre dans une veine. Since we developed another technique that involves introducing a filter into a vein. Le filtre utilisé à cet effet comporte 6 branches élastiques distribuées régulièrement autour d'un axe et dont l'extrémité est recourbée en forme de crochets. The filter used for this purpose has six elastic branches distributed regularly around the axis and whose end is bent in the form of hooks. Il est introduit dans la veine par l'intermédiaire d'une sorte de cathéter dans lequel il est replié. It is introduced into the vein by means of a kind of catheter in which it is folded. Pour l'introduction, le patient est en position décubitus, de sorte que généralement le filtre tend à se fixer par gravité dans une position où toutes les extrémités des branches ne sont pas fixées dans la paroi de la veine. For the introduction, the patient is supine position, so that generally the filter tends to settle by gravity into a position where all the ends of the legs are not fixed in the wall of the vein. Par suite l'efficacité d'un tel dispositif n'est pas parfaite. As a result the efficiency of such a device is not perfect. De plus à l'état replié un tel dispositif a un diamètre relativement important (environ 8 mm) de sorte qu'il nécessite un cathéter de diamètre important et donc difficile à introduire. Furthermore in the folded state such a device has a relatively large diameter (about 8 mm) such that it requires a large diameter catheter and therefore difficult to introduce.

La présente invention vise à fournir un dispositif destiné à arrêter la circulation des thrombus dans les vaisseaux, qui puisse être mis en place aisément et qui soit sûr. The present invention aims to provide a device designed to stop the flow of thrombus in the vessels, which can be implemented easily and is safe.

A cet effet la présente invention a pour objet un dispositif destiné à arrêter la circulation des thrombus dans les vaisseaux, du type comprenant des bandws For this purpose the present invention relates to a device for stopping the movement of thrombus in the vessel, of the type comprising bandws
élastiques disposées régulièrement autour d'un axe central et dont au moins l'extrémité de certaines est munie de crochets dirigés vers l'extérieur pour l'ancrage dans la paroi des vaisseaux, ce dispositif étant caractérisé en ce qu'il comprend, de part et d'autre d'un corps central de liaison , et disposées régulièrement autour d'un. elastic regularly arranged around a central axis and at least some end is provided with hooks directed outwards for anchoring in the vessel wall, the device being characterized in that it comprises, on either side of a central body connecting and disposed regularly around a.

axe central, d'un côté, plusieurs branches élastiques constituées chacune par un brin courbe, sensiblement parallèle à l'axe central au niveau du corps central et s'écartant progressivement de cet axe au-delà, au moins trois de ces branches régulièrement réparties étant munies à leur extrémité d'un crochet dirigé vers l'extérieur, et, de l'autre côté, au moins trois branches élastiques constituées chacune par un brin courbe, sensiblement parallèle à l'axe central au niveau de cet axe et s'écartant progressivement de cet axe au-delà et dont l'extrémité est recourbée vers l'intérieur. central axis, on one side, a plurality of resilient arms each formed by a curved blade, substantially parallel to the central axis at the central body and diverging progressively from said axis beyond, at least three of the branches are uniformly distributed being provided at their end with an outwardly directed hook, and, on the other hand, at least three spring legs each consisting of a curved blade, substantially parallel to the central axis at said axis and s' progressively away from said axis beyond the end of which is bent inwards.

Ce dispositif comprend ainsi d'un côté des branches de filtration régulièrement distribuées. This device thus comprises a side regularly distributed filter branches. Certaines de ces branches régulièrement réparties (au moins trois) sont munies de crochets et servent ainsi à l'ancrage du dispositif dans la paroi du vaisseau. Some of these branches distributed regularly (at least three) are provided with hooks and thus serve to anchor the device in the vessel wall. De l'autre côté le dispositif comprend des branches qui permettent de stabiliser sa position lors de la mise en place. Across the device comprises branches that can stabilize his position at the establishment.

En outre par leur forme particulière et leur orientation par rapport au corps central, les différentes branches élastiques peuvent être ramenées au voisinage de l'axe central afin d'être introduitesdans un tube de petit diamètre utilisé pour la mise en place du dispositif. Moreover by their particular shape and orientation relative to the central body, the individual elastic arms can be reduced in the vicinity of the central axis to be introduitesdans a tube of small diameter used for the implementation of the device.

De plus pour diminuer encore le diamètre apparent du tube et faciliter la mise en place du dispositif, les branches munies de crochets ont avantageusement une longueur différente de façon que les crochets soient décalés le long de l'axe. In addition to further reduce the apparent diameter of the tube and facilitate the implementation of the device, the arms provided with hooks preferably have a different length so that the hooks are offset along the axis. On diminue ainsi le diamètre apparent et on évite que les crochets se bloquent les uns les autres en empêchant le déploiement du dispositif. This reduces the apparent diameter and it is avoided that the hooks are locked each other by preventing the deployment of the device.

Dans ces conditions il est possible d'avoir un diamètre apparent ne dépassant pas trois millimètres, ce qui autorise la mise en place du dispositif à l'aide d'un cathéter de petit diamètre (par exemple de 3 mm de diamètre intérieur). Under these conditions it is possible to have an apparent diameter not exceeding three millimeters, which allows the implementation of the device using a small diameter catheter (e.g., 3 mm inside diameter).

Le dispositif selon l'invention est réalisé de préférence en un métal élastique et peut être notamment en titane ou en acier inoxydable amagnétique par exemple 316 L, pour ne pas gêner un examen éventuel par imagerie RMN. The device according to the invention is preferably made of a resilient metal and can be in particular of titanium or a nonmagnetic stainless steel for example 316, not to impede a possible examination by NMR imaging. Les branches peuvent être constituées par exemple par des brins d'un diamètre de 0,4 mm. The branches can be made for example by strands with a diameter of 0.4 mm. Les brins peuvent être réunis au corps central par brassage, collage ou sertissage. The strands may be joined to the central body by stirring, bonding or crimping.

L'invention sera exposée ci-après plus en détail en se référant aux dessins annexés sur lesquels The invention will be described below in more detail with reference to the accompanying drawings wherein
la Fig. Fig. 1 est une vue en plan d'un dispositif selon l'invention, 1 is a plan view of the device according to the invention,
la Fig. Fig. 2 est une vue de côté du dispositif selon la Fig. 2 is a side view of the device according to Fig. 1, 1
la Fig. Fig. 3 est une vue partielle en plan du dispositif de la Fig. 3 is a partial plan view of the device of Fig. 1 après repliement partiel. 1 after partial folding.

Le dispositif représenté sur les Fig. The device shown in Figs. 1 à 3 comprend un corps central 1 de forme générale cylindrique présentant un axe de symétrie 2. 1 to 3 comprises a central body 1 of generally cylindrical shape having an axis of symmetry 2.

Sur l'un des côtés du corps central 1 sont fixés 4 branches 3 sans crochets et des branches 4a, 4b, 4c et 4d munies chacune d'un crochet à l'extrémité opposée à celle fixée au corps central 1 On one side of the central body 1 are fixed legs 3 4 without hooks and branches 4a, 4b, 4c and 4d each provided with a hook at the end opposite that attached to the central body 1
Les branches 3 et 4a, 4b, 4c et 4d sont formées de brins courbes ayant sensiblement la même courbure. The legs 3 and 4a, 4b, 4c and 4d are formed strands curves having substantially the same curvature.

Au niveau du corps central 1 les branches 3, 4a, 4b, 4c, et 4d sont sensiblement parallèles à l'axe central 2 et vont en s'écartant de cet axe au-delà. In the central body 1 branches 3, 4a, 4b, 4c, 4d and are substantially parallel to the central axis 2 and are moving away from this axis beyond.

Les 4 branches 3 ont une même longueur et sont disposées à 900 les unes par rapport aux autres. 4 branches 3 have a same length and are disposed at 900 relative to each other.

Les branches 4a, 4b, 4c et 4d ont des longueurs qui diffèrent les unes des autres d'une même valeur (en l'occurence des longueurs décroissantes) et sont disposées également à 900 les unes par rapport aux autres dans des plans faisant un angle de 450 avec les plans des branches 3. The branches 4a, 4b, 4c and 4d have lengths that differ from each other by the same amount (in this case decreasing lengths) and are also arranged at 900 from each other in planes forming an angle 450 with the planes of the legs 3.

Les crochets 5 à l'extrémité des branches 4 sont dirigés vers l'extérieur. The hooks 5 at the ends of legs 4 are directed outwardly.

De l'autre côté du corps central 1 sont fixées 4 branches 6 formées chacune d'un brin courbe. On the other side of the central body 1 are fixed four arms 6 each formed of a curved strand. Au niveau du corps central les branches 6 sont sensiblement parallèles à l'axe central 2 et vont en s'écartant au-delà, jusqu'au voisinage de leur extrémité 7, qui, par contre, est recourbée vers l'intérieur, en direction de l'axe central. In the central body level branches 6 are substantially parallel to the central axis 2 and are moving away beyond, to the vicinity of the end 7, which, against, is bent inwardly in the direction the central axis.

On a présenté sur la Fig. It was shown in Fig. 3 comment le dispositif représenté sur les Fig. 3 how the device shown in Fig. 1 et 2 pouvait être replié en vue de son introduction dans un conduit tel qu'un cathéter ou une aiguille. 1 and 2 could be folded for insertion into a conduit such as a catheter or a needle.

Les branches 4a, 4b, 4c et 4d sont ramenées vers l'axe central 2. Les différents branches 4a à 4d ayant des longueurs différentes, les crochets 5 sont étagés le long de l'axe central 2. Les branches 3 sont repliées de même contre les branches 4a, 4b, 4c et 4d. The branches 4a, 4b, 4c and 4d are brought back towards the central axis 2. The different branches 4a to 4d having different lengths, the hooks 5 are stepped along the central axis 2. The arms 3 are folded along against the legs 4a, 4b, 4c and 4d.

Le dispositif peut alors être introduit aisément dans un conduit destiné à la mise en place du dispositif. The device can then be easily inserted into a conduit for the introduction of the device.

Le dispositif peut généralement être mis en place par voie percutanée à l'aide d'un cathéter muni d'un piston interne mécanique ou hydraulique, les crochets étant disposés vers la sortie du cathéter. The device may generally be placed percutaneously via a catheter fitted with a mechanical or hydraulic internal piston, the brackets being disposed to the outlet of the catheter.

Après sortie des crochets à l'intérieur du vaisseau on tire l'ensemble de façon à ancrer les crochets 5 dans les parois du vaisseau puis on retire le cathéter. After output of the hooks inside the vessel is pulled together so as to anchor the hooks 5 in the walls of the vessel and the catheter is removed.

Pendant cette opération les branches 6 assurent un excellent positionnement des crochets 5. During this operation six branches provide excellent positioning brackets 5.

En variante on peut bien sûr mettre en place le dispositif par voie chirurgicale. Alternatively you can of course set up the device surgically.

Claims (4)

    REVENDICATIONS
  1. 1. Dispositif destiné à arrêter la circulation des thrombus dans les vaisseaux, du type comprenant des branches élastiques disposées régulièrement autour d'un axe central et dont au moins l'extrémité de certaines est munie de crochets dirigés vers l'extérieur pour l'ancrage dans la paroi des vaisseaux, ce dispositif étant caractérisé en ce qu'il comprend, de part et d'autre d'un corps central de liaison (1), et disposées régulièrement autour d'un axe central (2), d'un côté, plusieurs branches élastiques (3, 4a, 4b, 4c, 4d) constituées chacune par un brin courbe, sensiblement parallèle à l'axe central au niveau du corps central, et s'écartant progressivement de cet axe au-delà, au moins trois de ces branches (4a, 4b, 4c, 4d) régulièrement réparties étant munies à leur extrémité d'un crochet (5) dirigé vers l'extérieur, et, de l'autre côté, au moins trois branches élastiques (6) constituées chacune par un brin courbe, sensiblement parallèle à l'axe 1. Device for stopping the flow of thrombus in the vessel, of the type comprising resilient legs regularly arranged around a central axis and at least some end is provided with outwardly directed hooks for anchoring in the vessel wall, the device being characterized in that it comprises, on either side of a central body connecting (1) and arranged regularly about a central axis (2), a side, a plurality of resilient legs (3, 4a, 4b, 4c, 4d) each constituted by a curved blade, substantially parallel to the central axis at the central body, and extending away progressively from said axis beyond at least three of these branches (4a, 4b, 4c, 4d) being provided evenly distributed at their end with a hook (5) facing outwards, and, on the other hand, at least three spring legs (6) consist each strand by a curve substantially parallel to the axis central au niveau de cet axe et s'écartant progressivement de cet axe au-delà et dont l'extrémité (7) est recourbée vers l'intérieur. at central axis and away progressively from said axis beyond the end of which (7) is bent inwardly.
  2. 2. Dispositif selon la revendication 1, caractérisé en ce que les branches (4a, 4b, 4c, 4d) munies de crochets (5) ont une longueur différente. 2. Device according to Claim 1, characterized in that the legs (4a, 4b, 4c, 4d) provided with hooks (5) have a different length.
  3. 3. Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce qu'il comprend, d'un côté, huit branches (3, 4a, 4b, 4c, 4d) dont quatre (4a, 4b, 4c, 4d) sont munies d'un crochet (5) à leur extrémité et de l'autre côté quatre branches (6) à extrémité (7) recourbée vers l'intérieur. 3. Device according to claim 1 or claim 2, characterized in that it comprises, on one side, eight branches (3, 4a, 4b, 4c, 4d) of which four (4a, 4b, 4c, 4d) are provided with a hook (5) at their end and on the other side four legs (6) to end (7) bent inwards.
  4. 4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il est en titane ou en acier inoxydable amagnétique. 4. Device according to any one of claims 1 to 3, characterized in that it consists of titanium or stainless steel non-magnetic.
FR8514394A 1985-09-27 1985-09-27 Device intended to stop the circulation of thrombi in vessels Pending FR2587901A1 (en)

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FR8514394A FR2587901A1 (en) 1985-09-27 1985-09-27 Device intended to stop the circulation of thrombi in vessels

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606641A1 (en) * 1986-11-17 1988-05-20 Promed filtering device for blood clots
EP0293605A1 (en) * 1987-05-22 1988-12-07 Boston Scientific Corporation Implantable filter
FR2632848A1 (en) * 1988-06-21 1989-12-22 Lefebvre Jean Marie Filter medical use
EP0350043A1 (en) * 1988-07-08 1990-01-10 Aubrey M. Palestrant Mechanically locking blood clot filter
FR2649884A1 (en) * 1989-07-18 1991-01-25 Ems Ind Filter for retention of blood clots
FR2699810A1 (en) * 1992-12-28 1994-07-01 Cardial Sa Device for stopping the flow of thrombus in the vascular conduits.
EP0678284A1 (en) * 1994-04-21 1995-10-25 B. BRAUN CELSA, Société Anonyme Blood filter for temporary or permanent use, and associated implanting device
FR2718950A1 (en) * 1994-04-21 1995-10-27 Braun Celsa Sa Temporary or long-term blood filter
WO1995031229A1 (en) * 1994-05-16 1995-11-23 Tovarichestvo S Ogranichennoi Otvetstvennostju 'comed' Intravenous filter
EP0746236A1 (en) * 1993-10-01 1996-12-11 Boston Scientific Corporation Improved vena cava filter
US5634942A (en) * 1994-04-21 1997-06-03 B. Braun Celsa Assembly comprising a blood filter for temporary or definitive use and a device for implanting it
US5755790A (en) * 1995-04-14 1998-05-26 B. Braun Celsa Intraluminal medical device
US5853420A (en) * 1994-04-21 1998-12-29 B. Braun Celsa Assembly comprising a blood filter for temporary or definitive use and device for implanting it, corresponding filter and method of implanting such a filter
US6231581B1 (en) 1998-12-16 2001-05-15 Boston Scientific Corporation Implantable device anchors
WO2005079701A2 (en) * 2004-02-13 2005-09-01 Boston Scientific Limited Centering intravascular filters and devices and methods for deploying and retrieving intravascular filters
US7699867B2 (en) 2004-04-16 2010-04-20 Cook Incorporated Removable vena cava filter for reduced trauma in collapsed configuration
WO2011055079A1 (en) * 2009-11-06 2011-05-12 A.L.N. Filter for a vena cava and kits containing same
US7972353B2 (en) 2004-04-16 2011-07-05 Cook Medical Technologies Llc Removable vena cava filter with anchoring feature for reduced trauma
US8043322B2 (en) 2004-04-16 2011-10-25 Cook Medical Technologies Llc Removable vena cava filter having inwardly positioned anchoring hooks in collapsed configuration
US8105349B2 (en) 2004-04-16 2012-01-31 Cook Medical Technologies Llc Removable vena cava filter having primary struts for enhanced retrieval and delivery
US8167901B2 (en) 2004-09-27 2012-05-01 Cook Medical Technologies Llc Removable vena cava filter comprising struts having axial bends
US8246672B2 (en) 2007-12-27 2012-08-21 Cook Medical Technologies Llc Endovascular graft with separately positionable and removable frame units
US8246648B2 (en) 2008-11-10 2012-08-21 Cook Medical Technologies Llc Removable vena cava filter with improved leg
US10022212B2 (en) 2011-01-13 2018-07-17 Cook Medical Technologies Llc Temporary venous filter with anti-coagulant delivery method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334629A (en) * 1964-11-09 1967-08-08 Bertram D Cohn Occlusive device for inferior vena cava
US4425908A (en) * 1981-10-22 1984-01-17 Beth Israel Hospital Blood clot filter
EP0117940A2 (en) * 1982-12-06 1984-09-12 Cook Incorporated Expandable blood clot filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334629A (en) * 1964-11-09 1967-08-08 Bertram D Cohn Occlusive device for inferior vena cava
US4425908A (en) * 1981-10-22 1984-01-17 Beth Israel Hospital Blood clot filter
EP0117940A2 (en) * 1982-12-06 1984-09-12 Cook Incorporated Expandable blood clot filter

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0270432A1 (en) * 1986-11-17 1988-06-08 Promed Filter apparatus for blood clots
FR2606641A1 (en) * 1986-11-17 1988-05-20 Promed filtering device for blood clots
EP0293605A1 (en) * 1987-05-22 1988-12-07 Boston Scientific Corporation Implantable filter
EP0348295A1 (en) * 1988-06-21 1989-12-27 LEFEBVRE, Jean-Marie Medical filter
FR2632848A1 (en) * 1988-06-21 1989-12-22 Lefebvre Jean Marie Filter medical use
EP0350043A1 (en) * 1988-07-08 1990-01-10 Aubrey M. Palestrant Mechanically locking blood clot filter
FR2649884A1 (en) * 1989-07-18 1991-01-25 Ems Ind Filter for retention of blood clots
FR2699810A1 (en) * 1992-12-28 1994-07-01 Cardial Sa Device for stopping the flow of thrombus in the vascular conduits.
WO1994014389A1 (en) * 1992-12-28 1994-07-07 Cardial Device for preventing thrombus circulation in vascular ducts
EP0746236A1 (en) * 1993-10-01 1996-12-11 Boston Scientific Corporation Improved vena cava filter
EP0746236A4 (en) * 1993-10-01 1998-12-16 Boston Scient Corp Improved vena cava filter
US6391045B1 (en) 1993-10-01 2002-05-21 Boston Scientific Corporation Vena cava filter
US6126673A (en) * 1993-10-01 2000-10-03 Boston Scientific Corporation Vena cava filter
US5634942A (en) * 1994-04-21 1997-06-03 B. Braun Celsa Assembly comprising a blood filter for temporary or definitive use and a device for implanting it
EP1195147A1 (en) * 1994-04-21 2002-04-10 B. Braun Medical SAS,(Société par Actions Simplifiées) Endovascular blood filter and implantation means
FR2718950A1 (en) * 1994-04-21 1995-10-27 Braun Celsa Sa Temporary or long-term blood filter
US5853420A (en) * 1994-04-21 1998-12-29 B. Braun Celsa Assembly comprising a blood filter for temporary or definitive use and device for implanting it, corresponding filter and method of implanting such a filter
EP0678284A1 (en) * 1994-04-21 1995-10-25 B. BRAUN CELSA, Société Anonyme Blood filter for temporary or permanent use, and associated implanting device
US6193739B1 (en) 1994-04-21 2001-02-27 B. Braun Celsa Assembly comprising a blood filter for temporary or definitive use and a device for implanting it, corresponding filter and method of implanting such a filter
WO1995031229A1 (en) * 1994-05-16 1995-11-23 Tovarichestvo S Ogranichennoi Otvetstvennostju 'comed' Intravenous filter
US5755790A (en) * 1995-04-14 1998-05-26 B. Braun Celsa Intraluminal medical device
US6231581B1 (en) 1998-12-16 2001-05-15 Boston Scientific Corporation Implantable device anchors
WO2005079701A2 (en) * 2004-02-13 2005-09-01 Boston Scientific Limited Centering intravascular filters and devices and methods for deploying and retrieving intravascular filters
WO2005079701A3 (en) * 2004-02-13 2005-10-27 Boston Scient Scimed Inc Centering intravascular filters and devices and methods for deploying and retrieving intravascular filters
US7323003B2 (en) 2004-02-13 2008-01-29 Boston Scientific Scimed, Inc. Centering intravascular filters and devices and methods for deploying and retrieving intravascular filters
US7892252B2 (en) 2004-02-13 2011-02-22 Boston Scientific Scimed, Inc. Centering intravascular filters and devices and methods for deploying and retrieving intravascular filters
US8246651B2 (en) 2004-04-16 2012-08-21 Cook Medical Technologies Llc Removable vena cava filter for reduced trauma in collapsed configuration
US8105349B2 (en) 2004-04-16 2012-01-31 Cook Medical Technologies Llc Removable vena cava filter having primary struts for enhanced retrieval and delivery
US7699867B2 (en) 2004-04-16 2010-04-20 Cook Incorporated Removable vena cava filter for reduced trauma in collapsed configuration
US7972353B2 (en) 2004-04-16 2011-07-05 Cook Medical Technologies Llc Removable vena cava filter with anchoring feature for reduced trauma
US8043322B2 (en) 2004-04-16 2011-10-25 Cook Medical Technologies Llc Removable vena cava filter having inwardly positioned anchoring hooks in collapsed configuration
US8167901B2 (en) 2004-09-27 2012-05-01 Cook Medical Technologies Llc Removable vena cava filter comprising struts having axial bends
US8246672B2 (en) 2007-12-27 2012-08-21 Cook Medical Technologies Llc Endovascular graft with separately positionable and removable frame units
US8246648B2 (en) 2008-11-10 2012-08-21 Cook Medical Technologies Llc Removable vena cava filter with improved leg
FR2952295A1 (en) * 2009-11-06 2011-05-13 A L N Vena cava filter and kits containing the
WO2011055079A1 (en) * 2009-11-06 2011-05-12 A.L.N. Filter for a vena cava and kits containing same
US10022212B2 (en) 2011-01-13 2018-07-17 Cook Medical Technologies Llc Temporary venous filter with anti-coagulant delivery method

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