WO2002022048A2 - Dispositif conçu pour etre insere dans une veine - Google Patents

Dispositif conçu pour etre insere dans une veine Download PDF

Info

Publication number
WO2002022048A2
WO2002022048A2 PCT/GB2001/004153 GB0104153W WO0222048A2 WO 2002022048 A2 WO2002022048 A2 WO 2002022048A2 GB 0104153 W GB0104153 W GB 0104153W WO 0222048 A2 WO0222048 A2 WO 0222048A2
Authority
WO
WIPO (PCT)
Prior art keywords
filter
spokes
vein
mode
open
Prior art date
Application number
PCT/GB2001/004153
Other languages
English (en)
Other versions
WO2002022048A3 (fr
Inventor
J. Graeme Houston
Original Assignee
Tayside Flow Technologies Ltd.
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 Tayside Flow Technologies Ltd. filed Critical Tayside Flow Technologies Ltd.
Priority to AU2001287876A priority Critical patent/AU2001287876A1/en
Publication of WO2002022048A2 publication Critical patent/WO2002022048A2/fr
Publication of WO2002022048A3 publication Critical patent/WO2002022048A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/01—Filters implantable into blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2002/016—Filters implantable into blood vessels made from wire-like elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/005—Rosette-shaped, e.g. star-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0067—Three-dimensional shapes conical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—Three-dimensional shapes cylindrical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0073—Quadric-shaped
    • A61F2230/0076—Quadric-shaped ellipsoidal or ovoid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0073—Quadric-shaped
    • A61F2230/0078—Quadric-shaped hyperboloidal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section

Definitions

  • This invention relates to devices for insertion into a vein.
  • a treatment for preventing blood clots which occur in the veins of the legs travelling to the lungs (“embolism”), with consequent fatality, is the placement of a metal "umbrella” type filter in the main vein in the abdomen - an inferior vena caval filter.
  • Permanent filters have a significant rate of blockage, leading to problems.
  • Temporary implants need to be removed within ten days, as otherwise they become incorporated in the wall of the vein.
  • the present invention provides a device which overcomes these problems.
  • the invention comprises a device for insertion into a vein comprising a filter which is collapsible in situ.
  • the device may be reconfigurable into a filterless device, which may be a stent.
  • the filter may comprise a mesh having a cylindrical supporting portion and an openable cap portion which, closed, partially occludes the vein.
  • the supporting portion may be capable of expansion to fit different sizes of lumen, such expansion of the supporting portion not, however, opening the cap.
  • US 5,350,398 discloses a flexible vena cava filter which comprises a flexible stent which expands to fit the vein when inserted and which may be adjusted for different levels of filtration.
  • the general principles of manufacturing such a filter can be adopted in the manufacture of the device according to the present invention, with, however, the additional feature that the flexible wire segments that form the filter part of the device of US 5,350,398 can be opened out to lie against the wall of the vein to form an open stent.
  • Reconfiguration may be effected by a balloon catheter.
  • a catheter according to another aspect of the invention will have significant advantages.
  • the invention comprises a balloon catheter for insertion into a vein comprising a filter having an inlet end and a closed, leading end of a cylindrical, expandable balloon body, and of which a forward part of the cylindrical body adjacent the closed end is, in an initial configuration, disposed sheath- wise over a rearward part of the cylindrical body adjacent the inlet end so that, on inflation through the inlet end, the said forward part extends forwardly and expands radially which is reconfigurable in situ into a filterless stent.
  • the catheter may be combined with a delivery/retrieval system including a sheath around which the forward part of the cylindrical body is disposed for delivery and capable of encompassing the deployed and eventually collapsed catheter for retrieval.
  • the filter may comprise spokes radiating from a central node. The spokes may be tied together at the central node by a releasable tie, which may comprise a cuttable suture.
  • the spokes may be biased to lie against the vein wall.
  • the spokes may be hingedly connected to mutually rotatable end rings which can be relatively rotated to open and close the spoke assembly.
  • the end rings may be comparable in diameter and rotate relatively between a filter deployment, in which they are close together, and an open deployment, in which they are separated and the spokes are, or are more, axially parallel.
  • the spokes may be curved, and may be flexible.
  • the spokes may be bi-stable, having a stable filter mode, in which they are at least partially radially disposed, and a stable open mode, in which they are, or are more, axially aligned, and may be adapted to flip from one of said modes to the other.
  • the spokes may be adapted to be flipped from the filter mode to the open mode, but not in the reverse sense.
  • the device may comprise a bi-stable filament arrangement having a first, open configuration of annular shape defined by a sinuous filament formation, and a second, filter configuration, in which the annular shape collapses, with the sinuous filament formation bent in towards the centre, forming spokes.
  • the spokes may be filaments attachable at each end at the vein wall, as by hooks, which are held together intermediate their ends by a tie, which can be cut to change to open mode.
  • the filaments may be elastic, and be, in filter mode, stretched, resiling against the vein wall on release of the tie.
  • the device may comprise a filter mode comprising a filament tangle attachable to the vein wall, again as by hooks, and having a slider collapsing the tangle into a slim configuration in which it ceases to be a filter.
  • an element or elements making up the filter may be angled for insertion into a vein so as to direct clots toward the vein walls.
  • the filter element or elements may be movable between a filter mode and an open mode, in which it or they trap against the vein wall any clots caught prior to redeployment from filter to open mode.
  • a device may comprise a basket clot catcher, which can be detached from supporting structure and retrieved with any clots caught thereby.
  • redeployment from filter to open mode in any arrangement may be effected by catheter means, it may also be arranged to redeploy the device non- invasively, as by induction heating causing a change of state of a 'memory' metal.
  • Stents are already may of such materials, such as Nitinol, to deploy, under body temperature conditions, from collapsed configuration for insertion to open configuration once in position. It would only be necessary to arrange that a small temperature elevation above high fever temperature, which can easily be brought about by induction heating, could cause the necessary change of state.
  • Redeployment may also be effected by making the filter out of degradable material, which degrades over apredeterminable time period, either under the conditions normally encountered in the bloodstream or under conditions which may be brought about at the will of the clinician, as by the injection of a substance which dissolves the filter or initiates a change in the filter that renders it degradable under normal bloodstream conditions, as by dissolving a protective film, but which otherwise does no damage to the patient.
  • Figure 1 is a view of a first embodiment of device in its initial configuration
  • Figure 2 is a side elevation of the device of Figure 1 after expansion from its initial configuration
  • Figure 3 is an end-on view of the expanded device of Figure 1;
  • Figure 4 is a view like Figure 2 of the expanded device reconfigured as a stent
  • Figure 5 is a view of a balloon catheter advancing to a filter of Figures 1 to 4 to reconfigure it;
  • Figure 6 is a view of the catheter of Figure 5 having reconfigured the filter into a stent
  • Figure 7 is a view of the balloon catheter of Figure 6 having been collapsed for retrieval.
  • Figure 8 is a view of a second embodiment, in filter deployment
  • Figure 9 is a view of the embodiment of Figure 8, on open mode
  • Figure 10 is a side view of a third embodiment
  • Figure 11 is a side view of a fourth embodiment, in filter deployment
  • Figure 12 shows the embodiment of Figure 11 on open mode
  • Figure 13 is a side elevation of a fifth embodiment, in filter deployment
  • Figure 14 is an end view of the embodiment of Figure 13, in filter deployment
  • Figure 15 is an end view like Figure 14, in open mode
  • Figure 16 is a side view of a sixth embodiment, in filter configuration
  • Figure 17 is a view like Figure 16, in open mode
  • Figure 18 is a side view of a seventh embodiment, in open mode
  • Figure 19 is a view like Figure 18, in filter deployment
  • Figure 20 is a side view of an eighth embodiment, in filter deployment
  • Figure 21 is a view like Figure 20, in open mode
  • Figure 21 is a side view of a ninth embodiment
  • Figure 22 is a side view of a tenth embodiment, in filter deployment; and Figure 23 is a view like Figure 22, in open mode
  • FIGS 1 to 4 of the drawings illustrate a device 11 for insertion into a vein comprising a filter 12 which is reconfigurable as a stent - Figure 4.
  • the filter 12 comprises a mesh e.g. of metal wire 13 having a cylindrical supporting portion 14 and an openable cap portion 15 which, closed, as seen in Figures 2 and 3, partially occludes the vein to arrest blood clots.
  • the supporting portion is of mesh construction it is capable of expansion from an initial collapsed condition as seen in Figure 1, as by the use of an expanding catheter, known per se, to fit the lumen of the vein in which it is emplaced, or as a self expanding (e.g. nitinol) filter, which is the most common kind.
  • an expanding catheter known per se
  • a self expanding filter e.g. nitinol
  • the cap is openable, as will be presently described, it is important that it is not opened at this stage. This can be achieved in different ways, but perhaps the simplest, with a catheter-expanded device, is to arrange that the opening force for the cap 15 is greater than that required to expand the supporting portion 14. The base of the cap 15, where it joins the cylindrical portion 14, will expand with the insertion catheter along with the supporting portion 14. If the device is self-expanding, it will simply be arranged that self expansion brings it to the configuration of Figures 1 and 2.
  • the mesh of the cap 15 comprises radially extending ribs 16 and circumferentially extending connectors 17. With the supporting portion 14 opened out, the connectors 17 are still partially folded. When the device is reconfigured as a stent - Figure 3 - these connectors 17 are unfolded to their maximum extent. Reconfiguration into a stent is best effected by a balloon catheter.
  • a balloon catheter adapted for use with a device as illustrated in Figures 1 to 4 is illustrated in Figures 5, 6 and 7.
  • the catheter comprises a balloon portion 51 having an inlet end 52 and closed leading end 53 of a cylindrical, expandable balloon body 54.
  • a forward part 55 of the cylindrical body 54, adjacent the closed end 53 is, in an initial configuration, disposed sheath-wise over a rearward part 56 of the cylindrical body 54, adjacent its inlet end 52, so that, on inflation through the inlet end 52 the said forward part 55 extends forwardly and expands radially.
  • a delivery system for the balloon catheter includes a sheath 57 around which the forward part 55 of the cylindrical body 54 is disposed for delivery and capable of encompassing the deployed and eventually collapsed catheter for retrieval.
  • Figure 5 shows the catheter in its initial configuration, approaching the filter 11 of Figures 1 to 4, which is in position in a vein 58.
  • Figure 6 shows the catheter advancing away from the sheath 57 into the filter 11 to force open the cap portion 15 to reconfigure the filter as a stent.
  • Figure 7 shows the catheter collapsed by relieving the internal air pressure after having reconfigured the filter being withdrawn into the sheath 57.
  • balloon catheter illustrated in Figures 5, 6 and 7 is particularly adapted for use with the reconfigurable filter 11, it may well be useful in other - and perhaps, even, in non-clinical applications.
  • FIGS 8 and 9 illustrate an embodiment of device 11 comprising spokes 81 radiating from a central node 82, where they are tied together by a releasable tie, namely a cuttable suture 83.
  • the spokes lie against the vein wall, or rather, against supporting structure 84 which is in contact with the vein wall, to which position they are biased, as by being comprised of springy material such as steel or synthetic filamentary material.
  • Figure 10 illustrates an embodiment of device somewhat like that of Figures 8 and 9, but with a fine mesh 101 covering the spokes 102, which are like the spokes 81 of Figure 8, but which deploy the other way. They are inserted facing the direction from which blood flows (arrow A) and are inclined so that clots 103 are directed to the outer perimeter. On deployment to open mode - broken line arrows B - the clots are retained against the vein wall by the mesh 101.
  • Figures 11 and 12 illustrate spokes 111 hingedly connected to end rings 112, 113 which are mutually rotatable and which can be relatively rotated to open and close the filter assembly.
  • the end rings 112, 113 are comparable in diameter - they need not be exactly the same - and rotate relatively between a filter deployment, Figure 11, in which they are close together, and the spokes form a dense filter, and an open deployment, in which they are spaced apart by about the length of the spokes 111. While straight spokes 111 have been illustrated, they could, of course be curved, and might be of flexible material, such as a synthetic polymer filament, to facilitate the hinge action.
  • the spokes 111 may be bi-stable, both the filter mode and the open mode being stable configurations, the device being adapted to flip between the modes. It may be preferred that flipping from the open mode back to the filter mode is not possible, to avoid accidental redeployment as a filter.
  • FIGs 13, 14 and 15 illustrate an embodiment of device 11 in which the spokes 131 are in the form of vanes which are curved and are hingedly attached at their outer ends to supporting structure 132.
  • the vanes have the curvature of the supporting structure, as seen in Figure 14, so that they lie 'flat' against the supporting structure.
  • Figures 16 and 17 illustrate spokes 161 comprising filaments in supporting structure 162 attachable at each end to the vein wall, as by hooks 163, which are held together intermediate their ends by a releasable tie, e.g. a cuttable suture 164.
  • a releasable tie e.g. a cuttable suture 164.
  • the supporting structure can be extended to stretch the filaments against the vein wall, or the filaments are elastic and are stretched in the filter deployment, snapping back against the vein wall on release, as seen in Figure 17.
  • FIGS 18 and 19 illustrate an embodiment of filter 11 comprising a filament tangle 181 with a slider 182 collapsing the tangle into a slim configuration - Figure 19, in which it ceases to be a filter.
  • Figures 20 and 21 illustrate an embodiment of device 11 comprising a bistable filament arrangement 201 having a first open configuration of annular shape defined by a sinuous filament formation, and a second, filter configuration, Figure 21, in which the annular shape collapses, with the sinuous filament formation bent in towards the centre, forming spokes.
  • Figure 22 illustrates an embodiment comprising in filter mode - solid line - a spiral formation of springy filament material 221 held in said formation be a tie 222 and releasable, as by cutting the tie, to open mode - broken line - assuming an open configuration.
  • Figures 23 and 24 illustrate a device 11 comprising a mesh basket 231 held in supporting structure 232 acting as a clot catcher, which, on redeployment to open mode can be pulled closed, by a thread 233 engageable by a catheter, and retrieved.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un dispositif conçu pour être inséré dans une veine comportant un filtre qui est repliable in situ.
PCT/GB2001/004153 2000-09-15 2001-09-17 Dispositif conçu pour etre insere dans une veine WO2002022048A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001287876A AU2001287876A1 (en) 2000-09-15 2001-09-17 Device for insertion into a vein

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0022653.0A GB0022653D0 (en) 2000-09-15 2000-09-15 Device for insertion into a vein
GB0022653.0 2000-09-15

Publications (2)

Publication Number Publication Date
WO2002022048A2 true WO2002022048A2 (fr) 2002-03-21
WO2002022048A3 WO2002022048A3 (fr) 2002-08-08

Family

ID=9899518

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004153 WO2002022048A2 (fr) 2000-09-15 2001-09-17 Dispositif conçu pour etre insere dans une veine

Country Status (3)

Country Link
AU (1) AU2001287876A1 (fr)
GB (1) GB0022653D0 (fr)
WO (1) WO2002022048A2 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547545A1 (fr) * 2003-12-26 2005-06-29 Terumo Kabushiki Kaisha Dispositif de capture d'embole et arrangement pour le déployer de ce dernier
WO2007061743A1 (fr) * 2005-11-17 2007-05-31 Novate Medical Ltd. Filtre vasculaire biodégradable
WO2010025775A1 (fr) 2008-09-05 2010-03-11 Christoph Andreas Binkert Filtre sanguin
WO2010082188A1 (fr) 2009-01-16 2010-07-22 Novate Medical Limited Dispositif de filtre vasculaire
US8057507B2 (en) 2009-01-16 2011-11-15 Novate Medical Limited Vascular filter
WO2012019149A1 (fr) * 2010-08-06 2012-02-09 Abbott Laboratories Vascular Enterprises Limited Ancres bistables pour filtre de lumière corporelle
US8162970B2 (en) 2006-07-19 2012-04-24 Novate Medical Limited Vascular filter
CN102824229A (zh) * 2012-09-20 2012-12-19 上海市第六人民医院 一种免取出的临时型腔静脉滤器及其制作方法
JP2013515575A (ja) * 2009-12-23 2013-05-09 パビリオン・メディカル・イノベーションズ・リミテッド・ライアビリティ・カンパニー 可逆的血管フィルターデバイスおよびその使用法
JP2013208473A (ja) * 2013-06-05 2013-10-10 Cook Medical Technologies Llc 血液フィルタ
US8668713B2 (en) 2009-01-16 2014-03-11 Novate Medical Limited Vascular filter device
WO2014100375A1 (fr) * 2012-12-20 2014-06-26 Promedica Health System, Inc. Filtre intravasculaire biodégradable
US10624731B2 (en) 2009-01-16 2020-04-21 Novate Medical Limited Vascular filter system
US10687930B2 (en) 2013-03-15 2020-06-23 Novate Medical Limited Vascular filter device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350398A (en) 1991-05-13 1994-09-27 Dusan Pavcnik Self-expanding filter for percutaneous insertion

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417738C2 (de) * 1984-05-12 1986-10-02 Ing. Walter Hengst GmbH & Co KG, 4400 Münster In Adern einsetzbarer Blutfilter
DE19509464C1 (de) * 1995-03-20 1996-06-27 Horst J Dr Med Jaeger Gefäßimplantat
WO1998002112A1 (fr) * 1996-07-12 1998-01-22 Alain Fouere Gaine filtre extensible a usage chirurgical pour veine cave ou gros vaisseaux sanguins

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350398A (en) 1991-05-13 1994-09-27 Dusan Pavcnik Self-expanding filter for percutaneous insertion

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005185759A (ja) * 2003-12-26 2005-07-14 Terumo Corp 塞栓部材捕捉用具および塞栓部材捕捉用具留置用器具
EP1547545A1 (fr) * 2003-12-26 2005-06-29 Terumo Kabushiki Kaisha Dispositif de capture d'embole et arrangement pour le déployer de ce dernier
JP2013208454A (ja) * 2005-11-17 2013-10-10 Novate Medical Ltd 脈管フィルタ
WO2007061743A1 (fr) * 2005-11-17 2007-05-31 Novate Medical Ltd. Filtre vasculaire biodégradable
JP2009515661A (ja) * 2005-11-17 2009-04-16 ノベート・メディカル・リミテッド 生分解性脈管フィルタ
US11877922B2 (en) 2006-07-19 2024-01-23 Novate Medical Limited Vascular filter
US11135049B2 (en) 2006-07-19 2021-10-05 Novate Medical Limited Vascular filter
US8162970B2 (en) 2006-07-19 2012-04-24 Novate Medical Limited Vascular filter
US8647360B2 (en) 2006-07-19 2014-02-11 Novate Medical Limited Vascular filter
WO2010025775A1 (fr) 2008-09-05 2010-03-11 Christoph Andreas Binkert Filtre sanguin
JP2012501694A (ja) * 2008-09-05 2012-01-26 クリストフ アンドレア ビンカート， 血液フィルタ
US9017363B2 (en) 2008-09-05 2015-04-28 Cook Medical Technologies Llc Blood filter
US9833304B2 (en) 2009-01-16 2017-12-05 Novate Medical Limited Vascular filter device
US9763765B2 (en) 2009-01-16 2017-09-19 Novate Medical Limited Vascular filter
WO2010082188A1 (fr) 2009-01-16 2010-07-22 Novate Medical Limited Dispositif de filtre vasculaire
US11672641B2 (en) 2009-01-16 2023-06-13 Novate Medical Limited Vascular filter system
US8668713B2 (en) 2009-01-16 2014-03-11 Novate Medical Limited Vascular filter device
US11413131B2 (en) 2009-01-16 2022-08-16 Novate Medical Limited Vascular filter device
CN102355871B (zh) * 2009-01-16 2014-07-09 诺瓦特医疗有限公司 脉管过滤器装置
US8821530B2 (en) 2009-01-16 2014-09-02 Novate Medical Limited Vascular filter
JP2012515039A (ja) * 2009-01-16 2012-07-05 ノベート・メディカル・リミテッド 血管フィルタデバイス
US8057507B2 (en) 2009-01-16 2011-11-15 Novate Medical Limited Vascular filter
US11045298B2 (en) 2009-01-16 2021-06-29 Novate Medical Limited Vascular filter
US10624731B2 (en) 2009-01-16 2020-04-21 Novate Medical Limited Vascular filter system
US10470865B2 (en) 2009-01-16 2019-11-12 Novate Medical Limited Vascular filter device
US9456888B2 (en) 2009-12-23 2016-10-04 Kaleidoscope Medical, Llc Reversible vascular filter devices and methods for using same
EP2515795A4 (fr) * 2009-12-23 2015-06-24 Pavilion Medical Innovations Dispositifs de filtre vasculaire réversible et procédés d'utilisation de ceux-ci
JP2013515575A (ja) * 2009-12-23 2013-05-09 パビリオン・メディカル・イノベーションズ・リミテッド・ライアビリティ・カンパニー 可逆的血管フィルターデバイスおよびその使用法
WO2012019149A1 (fr) * 2010-08-06 2012-02-09 Abbott Laboratories Vascular Enterprises Limited Ancres bistables pour filtre de lumière corporelle
CN102824229A (zh) * 2012-09-20 2012-12-19 上海市第六人民医院 一种免取出的临时型腔静脉滤器及其制作方法
US10117735B2 (en) 2012-12-20 2018-11-06 Promedica Health System, Inc. Biodegradable intravascular filter
WO2014100375A1 (fr) * 2012-12-20 2014-06-26 Promedica Health System, Inc. Filtre intravasculaire biodégradable
US10687930B2 (en) 2013-03-15 2020-06-23 Novate Medical Limited Vascular filter device
US11672639B2 (en) 2013-03-15 2023-06-13 Novate Medical Limited Vascular filter system
JP2013208473A (ja) * 2013-06-05 2013-10-10 Cook Medical Technologies Llc 血液フィルタ

Also Published As

Publication number Publication date
AU2001287876A1 (en) 2002-03-26
WO2002022048A3 (fr) 2002-08-08
GB0022653D0 (en) 2000-11-01

Similar Documents

Publication Publication Date Title
ES2603534T3 (es) Filtro de coágulo de sangre embólico extraíble
US6989021B2 (en) Retrievable medical filter
US8133253B2 (en) Vascular filter with sleeve
EP1620036B1 (fr) Dispositif de protection distal
US7749244B2 (en) Intravascular devices, retrieval systems, and corresponding methods
US8353926B2 (en) Long-term retrievable medical filter
KR102080379B1 (ko) 경피 회수가능한 혈관 필터
US6932832B2 (en) Convertible blood clot filter
US8475488B2 (en) Retrievable blood clot filter
US6267777B1 (en) Vascular filter convertible to a stent and method
ES2235244T3 (es) Un filtro para coagulos de sangre con embolo amovible.
WO2002022048A2 (fr) Dispositif conçu pour etre insere dans une veine
EP1127556A2 (fr) Filtre vasculaire pour matériau embolique
US20070055365A1 (en) Stent with integrated filter
EP2065013A1 (fr) Filtre vasculaire pour matériau embolique
US20040087999A1 (en) Vascular filter with improved anchor or other position retention
EP0942767A1 (fr) Mecanisme atraumatique d'ancrage et de retrait d'un implant permanent
WO1998023322A1 (fr) Mecanisme atraumatique d'ancrage et de retrait d'un implant permanent
CN107438418B (zh) 气道支架
CN113677296A (zh) 具有整合的栓塞防护装置的导管
EP1987802B1 (fr) Filtre médical extractible doté de paniers partiels

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP