WO2000067673A1 - Dispositif pour l'implantation de tuteurs intravasculaires - Google Patents

Dispositif pour l'implantation de tuteurs intravasculaires Download PDF

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Publication number
WO2000067673A1
WO2000067673A1 PCT/EP2000/004142 EP0004142W WO0067673A1 WO 2000067673 A1 WO2000067673 A1 WO 2000067673A1 EP 0004142 W EP0004142 W EP 0004142W WO 0067673 A1 WO0067673 A1 WO 0067673A1
Authority
WO
WIPO (PCT)
Prior art keywords
stent
catheter
balloon
guide
recess
Prior art date
Application number
PCT/EP2000/004142
Other languages
German (de)
English (en)
Inventor
Tassilo Bonzel
Randolf Von Oepen
Original Assignee
Jomed Gmbh
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 Jomed Gmbh filed Critical Jomed Gmbh
Priority to AU49185/00A priority Critical patent/AU4918500A/en
Publication of WO2000067673A1 publication Critical patent/WO2000067673A1/fr

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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
    • A61F2/856—Single tubular stent with a side portal passage
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • 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
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/958—Inflatable balloons for placing stents or stent-grafts
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91508—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other the meander having a difference in amplitude along the band
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91516—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other the meander having a change in frequency along the band
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91525—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
    • 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
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/9155—Adjacent bands being connected to each other
    • A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M2025/0177—Introducing, guiding, advancing, emplacing or holding catheters having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1045—Balloon catheters with special features or adapted for special applications for treating bifurcations, e.g. balloons in y-configuration, separate balloons or special features of the catheter for treating bifurcations

Definitions

  • the invention relates to a device for implanting vascular supports according to the preamble of claim 1 and a stent for such a device and a catheter for such a device.
  • vessel supports are used today to widen the constriction and stabilize the vessel wall, which can be designed, for example, as radially expandable stents. Such narrowing of body vessels can also occur in the area of vascular branches.
  • the use of conventional stents is not possible here, since their walls would hinder the free flow of blood into the branching vessel.
  • DE 297 01 758.6 therefore proposed a special stent which has a section with enlarged radial openings, so that this section can be placed over the branching point of the side branch vessel and no longer or only slightly obstructs the blood flow into the branching vessel.
  • the branching vessel itself can have an ostium constriction at its branch or an ostium constriction or an ostium closure can be opened by Expansion of the hollow vessel with new material or relocation of the stent web arise. It is then often no longer possible to probe the constriction of the ostium in order to expand it and, if necessary, provide it with a stent.
  • a device which has a stent, the wall structure of which has at least one flow passage recess which is enlarged compared to the openings of the wall structure. More generally, the stent has a number of such flow passage recesses which corresponds to the number of branches at the site to be implanted. This means that more than one such flow passage recess can be provided.
  • the subclaims contain advantageous developments of the invention.
  • the stent formation can therefore be selected depending on the anatomical formations of the location at which the stent is to be implanted in the body of a patient.
  • the stent can be manufactured in different ways. In principle, it is possible to manufacture the stent from a tube and to provide the tube with a multicellular wall structure, which can be produced, for example, by laser cutting a web structure. In this case, the webs delimit openings that can be configured differently, as well as the flow passage recess that is enlarged compared to these openings.
  • the enlarged flow passage recess only becomes effective through the implantation process. This is the case if the webs of the stent are only loosely connected to one another in the region of the flow-through recess and are therefore highly deformable. In this case, the flow passage recess is very small before the stent is expanded.
  • the device according to the invention is preferably provided with a first and a second guide wire.
  • the device according to the invention advantageously has the second guide wire, which is arranged in a guide on the catheter shaft and on the balloon of the device catheter in such a way that it emerges when actuated within the flow passage recess.
  • this guide wire which is assigned to the flow passage recess, it is thus possible to position the enlarged flow passage recess exactly above the Position 'outlet of a side branch vessel.
  • the catheter preferably has the first guide wire running along its longitudinal axis. Along this guidewire, it can be easily advanced to the junction before the second guidewire assigned to the recess can be used to position the enlarged recess exactly.
  • the procedure is usually as follows, but can also be modified if necessary:
  • the first guidewire is positioned distal to the constriction in the main vessel.
  • the second guide wire is threaded into the side vessel and positioned there.
  • the catheter is then pushed onto the first guide wire outside the body of a patient at the tip of the balloon catheter and at the tip of the stent and additionally pushed onto the second guide wire via the guide for the second guide wire.
  • the second guidewire passes through the flow passage recess.
  • the balloon is inflated and the stent is expanded so that it leans against the wall of the vessel.
  • the catheter can then be safely pulled out of the vessel along the two guide wires.
  • the stent remains in the vessel with the two wires.
  • Another balloon catheter can be inserted into the branch via the second guide wire of the side branch vessel in order to expand the enlarged opening if necessary. It can thus be ensured that no wall part of the stent obstructs the blood flow into the side branch vessel.
  • a cavity or guide lumen for the second guide wire associated with the enlarged flow passage recess can be formed by attaching a tube to the catheter shaft wall and the balloon wall.
  • the guide lumen can also be formed by an intermediate space of a double-walled catheter shaft and / or balloons.
  • the balloon catheter 3 can have coaxially arranged tubes, the two inner tubes forming cavities for receiving guide wires.
  • the guide lumen as a guide channel or tube protruding beyond the balloon.
  • this guide lumen so that it projects into the side branch vessel when the stent is positioned.
  • the first guide wire is first inserted into the distal main vessel past the stenosis and the lateral branch.
  • the second guidewire is then inserted into the main vessel and then into the side vessel.
  • the device is then threaded onto both wires, the first guide wire through the balloon and stent tip, the second guide wire through a special guide lumen in the lateral stent recess.
  • the device is then introduced into the main vessel via both wires.
  • the flow passage recess is inevitably oriented in the direction of the side vessel, so that the flow passage recess comes to lie directly in front of the side vessel. Under fluoroscopy, the recess is then pushed back and forth in the longitudinal direction until an optimal position in the longitudinal direction is found.
  • a rotation of the device around the axis of the first guide wire is possible to a certain extent. In particular, rotation can be achieved in proximal sections of the vessel.
  • the first guidewire is first inserted into the distal main vessel and then the device is pushed onto the first guidewire as previously described and the second guidewire is threaded into the side guide on the balloon but does not protrude from the recess .
  • the device is advanced to an appropriate location in the main vessel proximal to the side branch, with the second guide guidewire should not move in the device.
  • the second guidewire is advanced, threaded into the side branch, and then the device is advanced to the side branch.
  • the flow passage recess in the stent is advantageously oval in these procedures. This results in advantages in that, in particular, no sharp edges and tips form which could get caught on rough vessel wall sections when the stent is pushed into the vessel and would accordingly hinder the advancement of the stent.
  • the flow passage recess it is possible to select the flow passage recess to be very small, it being able to be greatly enlarged by means of movable or expandable arrangements of stent webs.
  • the webs would initially cover the opening of the side branch (ostium of the side branch) when the device is advanced and also after the stent has expanded. Then in the next step the balloon catheter is removed from the patient's body, a second balloon is inserted into the side branch and expanded there. It is only through this process that the stent recess is widened in the direction of the side branch, parts of the stent covering the wall of the side branch at its outlet and partially. support.
  • the particular advantage of this embodiment of the stent would be that a second stent could be connected to the first stent more easily, almost seamlessly, in the initial part of the side branch.
  • a stent and a device for implanting vascular supports are defined as an independently tradable object.
  • a catheter is defined as an independently tradable object for a device for implanting vascular sockets.
  • Fig. La-c three schematic representations of vascular branches with stenoses
  • FIG. 3 shows a side view of a stent preassembled on a balloon catheter
  • FIG. 3 shows a side view corresponding to FIG. 3 of a balloon catheter according to a second embodiment
  • FIG. 5 shows a representation of this embodiment corresponding to FIG. 4 in the expanded state of the stent.
  • FIG. 1 shows three examples of typical stenoses, as they can occur on vascular branches.
  • the stenosis 12 is located in the main vessel 10 in front of the branching of a side branch vessel 11.
  • FIG. 1b a very large stenosis 12 'lies directly opposite the branching of the side branch vessel 11 and in FIG. 1c in the transition between the main vessel 10 and the side branch vessel 11 .
  • the stenosis according to FIG. 1b is made with a bifurcation stent known per se with a section with enlarged

Abstract

L'invention concerne un dispositif pour l'implantation de tuteurs intravasculaires, qui comprend un stent expansible et un cathéter à ballon déployable sur lequel on peut placer le stent. L'invention vise à permettre d'implanter le stent aussi dans des ramifications de vaisseaux du corps sans pour cela empêcher la circulation sanguine dans le vaisseau bifurquant. A cet effet, le stent présente au moins un évidement de passage d'écoulement (22) de dimension supérieure aux ouvertures (21).
PCT/EP2000/004142 1999-05-11 2000-05-09 Dispositif pour l'implantation de tuteurs intravasculaires WO2000067673A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49185/00A AU4918500A (en) 1999-05-11 2000-05-09 Method and device for implanting vascular stents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19921788.2 1999-05-11
DE1999121788 DE19921788A1 (de) 1999-05-11 1999-05-11 Vorrichtung zur Implantierung von Gefäßstützen

Publications (1)

Publication Number Publication Date
WO2000067673A1 true WO2000067673A1 (fr) 2000-11-16

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PCT/EP2000/004142 WO2000067673A1 (fr) 1999-05-11 2000-05-09 Dispositif pour l'implantation de tuteurs intravasculaires

Country Status (3)

Country Link
AU (1) AU4918500A (fr)
DE (1) DE19921788A1 (fr)
WO (1) WO2000067673A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008005111A1 (fr) * 2006-06-30 2008-01-10 Boston Scientific Limited Modèle de stent avec colonnes a dilatation variable le long de la circonférence
US8932340B2 (en) 2008-05-29 2015-01-13 Boston Scientific Scimed, Inc. Bifurcated stent and delivery system
US9427340B2 (en) 2004-12-14 2016-08-30 Boston Scientific Scimed, Inc. Stent with protruding branch portion for bifurcated vessels
US9492297B2 (en) 2006-09-12 2016-11-15 Boston Scientific Scimed, Inc. Multilayer balloon for bifurcated stent delivery and methods of making and using the same
WO2018229801A1 (fr) * 2017-06-15 2018-12-20 Ranjan Alok Système amélioré de pose d'endoprothèse coronaire pour lésions de bifurcation
US10751062B2 (en) 2017-02-21 2020-08-25 Cook Medical Technologies Llc Medical device for temporary deployment into a bodily lumen
CN113367865A (zh) * 2020-03-09 2021-09-10 微创神通医疗科技（上海）有限公司 一种医用支架

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7341598B2 (en) 1999-01-13 2008-03-11 Boston Scientific Scimed, Inc. Stent with protruding branch portion for bifurcated vessels
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US9427340B2 (en) 2004-12-14 2016-08-30 Boston Scientific Scimed, Inc. Stent with protruding branch portion for bifurcated vessels
WO2008005111A1 (fr) * 2006-06-30 2008-01-10 Boston Scientific Limited Modèle de stent avec colonnes a dilatation variable le long de la circonférence
US8236044B2 (en) 2006-06-30 2012-08-07 Boston Scientific Scimed, Inc. Stent design with variable expansion columns along circumference
US9492297B2 (en) 2006-09-12 2016-11-15 Boston Scientific Scimed, Inc. Multilayer balloon for bifurcated stent delivery and methods of making and using the same
US8932340B2 (en) 2008-05-29 2015-01-13 Boston Scientific Scimed, Inc. Bifurcated stent and delivery system
US10751062B2 (en) 2017-02-21 2020-08-25 Cook Medical Technologies Llc Medical device for temporary deployment into a bodily lumen
WO2018229801A1 (fr) * 2017-06-15 2018-12-20 Ranjan Alok Système amélioré de pose d'endoprothèse coronaire pour lésions de bifurcation
CN113367865A (zh) * 2020-03-09 2021-09-10 微创神通医疗科技（上海）有限公司 一种医用支架

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