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DE102010027106A1 - Flow diverter for interrupting and bypassing blood flow into aneurysm of cerebral vessels in e.g. brain during aneurysm treatment, has stents, where diverter is designed so that diverter includes size and shape covering only aneurysm region - Google Patents

Flow diverter for interrupting and bypassing blood flow into aneurysm of cerebral vessels in e.g. brain during aneurysm treatment, has stents, where diverter is designed so that diverter includes size and shape covering only aneurysm region Download PDF

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DE102010027106A1
DE102010027106A1 DE102010027106A DE102010027106A DE102010027106A1 DE 102010027106 A1 DE102010027106 A1 DE 102010027106A1 DE 102010027106 A DE102010027106 A DE 102010027106A DE 102010027106 A DE102010027106 A DE 102010027106A DE 102010027106 A1 DE102010027106 A1 DE 102010027106A1
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diverter
aneurysm
flow diverter
position sensor
flow
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German (de)
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Dr. Klingenbeck Klaus
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Siemens Healthcare GmbH
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Siemens AG
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
    • A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • 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
    • A61F2002/823—Stents, different from stent-grafts, adapted to cover an aneurysm
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Vascular Medicine (AREA)
  • Reproductive Health (AREA)
  • Engineering & Computer Science (AREA)
  • Neurosurgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

The diverter (4) has stents with high mesh density and different porosities of surface. The diverter is designed such that the diverter does not comprise rotational symmetry and includes a size and a shape covering only a region of an aneurysm (2). A metal ring (5) is attached at the diverter as a support of the diverter. A position sensor is attached at a metal meshwork of the diverter and/or the ring. The position sensor indicates three space coordinates and two azimuth angles. A symmetrical axis of the position sensor is not aligned parallel to a longitudinal axis flow of the diverter.

Description

Die Erfindung betrifft einen Flow Diverter mit einer gegenüber Stents höheren Maschendichte und unterschiedlicher Porosität der Oberfläche.The invention relates to a flow diverter with a higher mesh density and different surface porosity than stents.

Die Behandlung von Aneurysmen cerebraler Gefäße erfolgt heute routinemäßig durch das sogenannte Coiling. Darunter versteht man das Einbringen von metallischen Drähten in das Volumen des Aneurysmas, wodurch der Blutfluss in das Aneurysma unterdrückt wird und dadurch eine nachfolgende Trombosierung stattfindet. Ein Aneurysma ist eine pathologische Veränderung des Gefäßabschnitts, also einer krankhaften, örtlich begrenzten, häufig sackartigen Erweiterung. Ein Aneurysma kann insbesondere in einem Blutgefäß im Bereich des Gehirns oder des Herzens auftreten; jedoch ist das Auftreten eines Aneurysmas im Allgemeinen nicht auf eine spezielle Körperregion begrenzt.The treatment of aneurysms of cerebral vessels is routinely carried out today by the so-called coiling. This is understood to mean the introduction of metallic wires into the volume of the aneurysm, whereby the blood flow into the aneurysm is suppressed, thereby causing a subsequent trombosis. An aneurysm is a pathological change in the vascular segment, that is, a diseased, localized, often saccular enlargement. In particular, an aneurysm can occur in a blood vessel in the region of the brain or the heart; however, the appearance of an aneurysm is generally not limited to a particular body region.

Diese Behandlungsart ist primär für Aneurysmen mit engem Hals geeignet, wie dies 1 schematisch zeigt.This type of treatment is primarily suitable for narrow neck aneurysms such as this 1 schematically shows.

Für ”flache” Aneurysmen mit weitem Hals wird diese Methode dadurch ergänzt, dass zuerst ein Stent in das Gefäß eingebracht wird und die Coils durch die Maschen des Stentgeflechts in das Aneurysma ”eingefädelt” werden, wie dies in 2 schematisch dargestellt ist.For "flat" aneurysms with a wide neck, this method is supplemented by first inserting a stent into the vessel and "threading" the coils through the meshes of the stent braid into the aneurysm, as described in US Pat 2 is shown schematically.

Für die Planung der Coillängen und der Stentgrößen (Länge und Durchmesser), wird die dreidimensionale Abbildung der cerebralen Gefäße mit der sogenannten Rotationsangiographie oder DynaCT, gegebenenfalls auch CTA und MRA benutzt.For the planning of the coil lengths and the stent sizes (length and diameter), the three-dimensional image of the cerebral vessels with the so-called rotational angiography or DynaCT, where appropriate also CTA and MRA is used.

Neu in der Entwicklung und der klinischen Anwendung sind sogenannte Flow Diverter, wie sie beispielsweise in der Literaturstelle ”Moderne Intracranielle Stenosebehandlung” von G. Friedrich Götz vom Institut für Diagnostische und Interventionelle Neuroradiologie der Medizinischen Hochschule Hannover beschrieben sind. Bei heute bekannten Flow Divertern handelt es sich um nach wie vor rotationssymmetrische Stents, die eine höhere Maschendichte und unterschiedliche Porosität der Oberfläche aufweisen. Auch durch diese Flow Diverter wird eine Unterbrechung bzw. Umleitung des Blutflusses in das Aneurysma erreicht, was letztlich zu einer natürlichen Trombosierung des Aneurysmas führt. Die therapeutische Erfolgsrate und Verbesserungen sind Gegenstand aktueller klinischer Studien.New in the development and the clinical application are so-called flow diverter, as for example in the reference "Modern Intracranial Stenosis Treatment" by G. Friedrich Götz of the Institute for Diagnostic and Interventional Neuroradiology of the Hannover Medical School are described. Flow diverters known today are still rotationally symmetric stents, which have a higher mesh density and different surface porosity. These flow diverters also achieve an interruption or diversion of the blood flow into the aneurysm, which ultimately leads to a natural trombosis of the aneurysm. The therapeutic success rate and improvements are the subject of current clinical studies.

Die Erfindung geht von der Aufgabe aus, einen Flow Diverter der eingangs genannten Art derart auszubilden, dass das Metallgeflecht des Flow Diverters den Hals des Aneurysmas vollständig abdeckt und der gesunde Teil des Gefäßes frei bleibt.The invention is based on the object, a flow diverter of the type mentioned in such a way that the metal mesh of the flow diverter completely covers the neck of the aneurysm and the healthy part of the vessel remains free.

Die Aufgabe wird erfindungsgemäß für eine Vorrichtung durch die im Patentanspruch 1 angegebenen Merkmale gelöst. Vorteilhafte Ausbildungen sind in den abhängigen Patentansprüchen angegeben.The object is achieved for a device by the features specified in claim 1. Advantageous embodiments are specified in the dependent claims.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Flow Diverter derart ausgebildet ist, dass er keine Rotationssymmetrie und eine nur den Bereich des Aneurysmas abdeckende Größe und Form aufweist.The object is achieved according to the invention in that the flow diverter is designed such that it has no rotational symmetry and a size and shape covering only the area of the aneurysm.

In vorteilhafter Weise kann an dem Flow Diverter wenigstens ein Metallring als Stütze des Flow Diverters angebracht sein.Advantageously, at least one metal ring may be attached to the flow diverter as a support of the flow diverter.

Das Handling des Flow Diverters wird erleichtert, wenn an dem Flow Diverter und/oder dem wenigstens einen Metallring ein Positionssensor angebracht ist. Wegen der fehlenden Rotationssymmetrie eines derartigen Flow Diverters kann der ”Drehwinkel” α um die Zentrallinie des Gefäßes eingestellt werden. Diese Information wird von einem Positionssensor (5-D oder 6-D) am Flow Diverter montiert geliefert und durch Vergleich mit der 3-D-Geometrie des Gefäßes eingestellt.The handling of the flow diverter is facilitated if a position sensor is attached to the flow diverter and / or the at least one metal ring. Because of the lack of rotational symmetry of such a flow diverter, the "rotation angle" α can be adjusted around the central line of the vessel. This information is supplied by a position sensor (5-D or 6-D) mounted on the Flow Diverter and adjusted by comparison with the 3-D geometry of the vessel.

Es hat sich als vorteilhaft erwiesen, wenn der Positionssensor die drei Raumkoordinaten und mindestens zwei Richtungswinkel angibt.It has proved to be advantageous if the position sensor indicates the three spatial coordinates and at least two directional angles.

Alternativ kann der Positionssensor drei Raumkoordinaten und zwei Richtungswinkel angeben, wobei die Symmetrieachse des Positionssensors nicht parallel zur Längsachse des Flow Diverters ausgerichtet ist.Alternatively, the position sensor may indicate three spatial coordinates and two directional angles, wherein the axis of symmetry of the position sensor is not aligned parallel to the longitudinal axis of the flow diverter.

Erfindungsgemäß kann der Positionssensor fest oder lösbar mit dem Flow Diverter verbunden sein, so dass er nach Abschluss der Positionierung und Implantierung wieder entfernbar ist.According to the invention, the position sensor can be permanently or detachably connected to the flow diverter, so that it can be removed again after completion of the positioning and implantation.

Die Erfindung ist nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:The invention is explained in more detail with reference to embodiments shown in the drawing. Show it:

1 ein Gefäß mit Aneurysma mit engem Hals, 1 a vessel with narrow neck aneurysm,

2 ein Gefäß mit Aneurysma mit weitem Hals und eingeführtem Stent, 2 a vessel with aneurysm with a wide neck and inserted stent,

3 einen erfindungsgemäß in ein Gefäß mit Aneurysma eingeführten Flow Diverter in Seitenansicht, 3 a flow diverter introduced according to the invention into a vessel with aneurysm in side view,

4 einen erfindungsgemäß in ein Gefäß mit Aneurysma eingeführten Flow Diverter im Querschnitt und 4 an inventively introduced into a vessel with aneurysm flow diverter in cross section and

5 den erfindungsgemäßen Flow Diverter. 5 the flow diverter according to the invention.

Gegenstand der Erfindung ist ein Flow Diverter 4, der nicht mehr rotationssymmetrisch ist und nur den Bereich des Aneurysmas 2 abdeckt, und eine Methode zur gezielten Positionierung in der 3-D-Geometrie des betreffenden Gefäßabschnitts. Eine mögliche Ausführungsform ist in den 3 und 4 skizziert. Sie zeigen einen Flow Diverter 4, der in einem Gefäß 1 mit Aneurysma 2 gemäß der 2 eingeführt ist. An den beiden Endbereichen des Flow Diverters 4 sind beispielsweise Metallringe 5 angebracht, die den lokalen Flow Diverter 4 tragen und ihn im gesunden distalen und proximalen Teil des Gefäßes 1 stützen.The invention relates to a flow diverter 4 which is no longer rotationally symmetric and only the area of the aneurysm 2 covers and a method for targeted positioning in the 3-D geometry of the relevant vessel section. One possible embodiment is in the 3 and 4 outlined. They show a flow diverter 4 who is in a vessel 1 with aneurysm 2 according to the 2 is introduced. At the two end areas of the Flow Diverter 4 are for example metal rings 5 attached to the local flow diverter 4 Wear and keep it in the healthy distal and proximal part of the vessel 1 support.

Der Flow Diverter 4 muss in seiner Positionierung und Orientierung derart ausgerichtet werden, dass das Maschengeflecht des Flow Diverters 4 den Hals des Aneurysmas 2 vollständig abdeckt.The flow diverter 4 must be aligned in its positioning and orientation so that the mesh of the Flow Diverters 4 the neck of the aneurysm 2 completely covers.

Zusätzlich ist an dem Flow Diverter 4 ein Positionssensor 6 angebracht, der die drei Raumkoordinaten und mindestens zwei Richtungswinkel angibt.In addition, at the flow diverter 4 a position sensor 6 attached indicating the three spatial coordinates and at least two directional angles.

Eine mögliche Ausführungsform des Flow Diverters 4 mit dem Positionssensor 6 ist in 5 dargestellt, in der der Positionssensor 6 an dem Metallgeflecht des Flow Diverters 4 befestigt ist. Der Positionssensor 6 kann aber auch an einem der Metallringe 5 angebracht sein.A possible embodiment of the flow diverter 4 with the position sensor 6 is in 5 shown in the position sensor 6 on the metal mesh of the Flow Diverter 4 is attached. The position sensor 6 but also on one of the metal rings 5 to be appropriate.

Je nach Positionierung und Orientierung des Positionssensors 6 relativ zum Flow Diverter 4 kann der in 4 gezeigte ”Drehwinkel” α = 0° oder α = 90° in seiner optimalen Lage betragen, so dass das Maschen- oder Metallgeflecht des Flow Diverters 4 den Hals des Aneurysmas 2 vollständig abdeckt und der gesunde Teil des Gefäßes frei bleibt. Wegen der fehlenden Rotationssymmetrie eines derartigen Flow Diverters wird der ”Drehwinkel” α um die Zentrallinie des Gefäßes 1 eingestellt. Diese Information wird von dem am Flow Diverter montierten Positionssensor 6 (5-D oder 6-D) geliefert und durch Vergleich mit der 3-D-Geometrie des Gefäßes eingestellt.Depending on the positioning and orientation of the position sensor 6 relative to the flow diverter 4 can the in 4 shown "angle of rotation" α = 0 ° or α = 90 ° in its optimum position, so that the mesh or metal mesh of the Flow Diverters 4 the neck of the aneurysm 2 completely covers and the healthy part of the vessel remains free. Because of the lack of rotational symmetry of such a flow diverter, the "rotation angle" α becomes the center line of the vessel 1 set. This information is provided by the position sensor mounted on the Flow Diverter 6 (5-D or 6-D) and adjusted by comparison with the 3-D geometry of the vessel.

Die Raumkoordinaten (x, y, z) des Positionssensors 6 werden dazu verwendet, um insbesondere die longitudinale Position des Flow Diverters 4 im Gefäß 1 und unterhalb des Aneurysmas 2 genau einzustellen. Dies erfolgt durch Vergleich der Koordinaten (x, y, z) des Flow Diverters 4 mit den 3-D-Koordinaten des Gefäßes 1 aus der Rotationsangiographie oder DynaCT-Aufnahmen. Derartige Röntgendiagnostikeinrichtungen sind beispielsweise in der US 7,734,009 B2 beschrieben.The spatial coordinates (x, y, z) of the position sensor 6 In particular, the longitudinal position of the flow diverter is used 4 in the vessel 1 and below the aneurysm 2 to adjust exactly. This is done by comparing the coordinates (x, y, z) of the flow diverter 4 with the 3-D coordinates of the vessel 1 from rotational angiography or DynaCT images. Such X-ray diagnostic devices are for example in the US 7,734,009 B2 described.

Aus der 3-D-Geometrie des Gefäßes kann auch die Zentrallinie bestimmt werden. Die Winkelinformation des Positionssensors 6 wird nun benutzt, um den Flow Diverter 4 parallel zur Zentrallinie einzustellen. Des Weiteren ergibt sich aus den Richtungswinkeln des Positionssensors 6 auch die optimale Einstellung des in 4 gezeigten ”Drehwinkels” α.From the 3-D geometry of the vessel and the center line can be determined. The angle information of the position sensor 6 is now used to the flow diverter 4 parallel to the center line. Furthermore, it follows from the directional angles of the position sensor 6 also the optimal setting of the in 4 shown "rotation angle" α.

Der explizite Algorithmus zur Verwendung der Richtungswinkel hängt von der speziellen Konstruktion des Flow Diverters 4 und der speziellen Anbringung des Positionssensors 6 ab.The explicit algorithm for using the directional angles depends on the specific construction of the Flow Diverter 4 and the special attachment of the position sensor 6 from.

Es gibt Positionssensoren 6, die drei Richtungswinkel anzeigen und daher eine größere Vielfalt bei der Konstruktion erlauben. Zeigt der Positionssensor 6 nur zwei Richtungswinkel, d. h. er weist nur eine Spule auf, so ist darauf zu achten, dass die Symmetrieachse des Positionssensors 6 nicht parallel zur Längsachse des Flow Diverters 4 gerichtet ist. Ansonsten kann der Winkel α nicht bestimmt und eingestellt werden.There are position sensors 6 which indicate three directional angles and therefore allow greater variety in construction. Shows the position sensor 6 only two directional angles, ie it has only one coil, so make sure that the symmetry axis of the position sensor 6 not parallel to the longitudinal axis of the flow diverter 4 is directed. Otherwise, the angle α can not be determined and adjusted.

Die bei allen Kombinationen von Röntgenbildumgebung mit elektromagnetischer Ortung ist eine Kalibrierung der entsprechenden Koordinationssysteme notwendig. Hierfür stehen verschiedene bekannte Verfahren zur Verfügung, wie beispielsweise mit speziellen Phantomen.In all combinations of X-ray environment with electromagnetic detection, a calibration of the corresponding coordination systems is necessary. For this purpose, various known methods are available, such as with special phantoms.

Der Positionssensor 6 kann fest mit dem Flow Diverter 4 verbunden sein oder derart, dass er nach Abschluss der Positionierung und Implantierung wieder entfernt werden kann.The position sensor 6 can be fixed with the flow diverter 4 be connected or such that it can be removed after completion of the positioning and implantation.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • US 7734009 B2 [0026] US 7734009 B2 [0026]

Zitierte Nicht-PatentliteraturCited non-patent literature

  • ”Moderne Intracranielle Stenosebehandlung” von G. Friedrich Götz vom Institut für Diagnostische und Interventionelle Neuroradiologie der Medizinischen Hochschule Hannover [0006] "Modern Intracranial Stenosis Treatment" by G. Friedrich Götz of the Institute for Diagnostic and Interventional Neuroradiology of the Hannover Medical School [0006]

Claims (7)

Flow Diverter (4) mit einer gegenüber Stents (3) höheren Maschendichte und unterschiedlicher Porosität der Oberfläche, dadurch gekennzeichnet, dass der Flow Diverter (4) derart ausgebildet ist, dass er keine Rotationssymmetrie und eine nur den Bereich des Aneurysmas (2) abdeckende Größe und Form aufweist.Flow Diverter ( 4 ) with an opposite stents ( 3 ) higher mesh density and different porosity of the surface, characterized in that the flow diverter ( 4 ) is designed such that it has no rotational symmetry and only the area of the aneurysm ( 2 ) has covering size and shape. Flow Diverter (4) nach Anspruch 1, dadurch gekennzeichnet, dass an dem Flow Diverter (4) wenigstens ein Metallring (5) als Stütze des Flow Diverters (4) angebracht ist.Flow Diverter ( 4 ) according to claim 1, characterized in that at the flow Diverter ( 4 ) at least one metal ring ( 5 ) as a support of the flow diverter ( 4 ) is attached. Flow Diverter (4) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass an dem Flow Diverter (4) und/oder dem wenigstens einen Metallring (5) ein Positionssensor (6) angebracht ist.Flow Diverter ( 4 ) according to claim 1 or 2, characterized in that at the flow Diverter ( 4 ) and / or the at least one metal ring ( 5 ) a position sensor ( 6 ) is attached. Flow Diverter (4) nach Anspruch 3, dadurch gekennzeichnet, dass der Positionssensor (6) die drei Raumkoordinaten und mindestens zwei Richtungswinkel angibt.Flow Diverter ( 4 ) according to claim 3, characterized in that the position sensor ( 6 ) indicates the three space coordinates and at least two direction angles. Flow Diverter (4) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Positionssensor (6) drei Raumkoordinaten und zwei Richtungswinkel angibt, wobei die Symmetrieachse des Positionssensors (6) nicht parallel zur Längsachse des Flow Diverters (4) ausgerichtet ist.Flow Diverter ( 4 ) according to claim 3 or 4, characterized in that the position sensor ( 6 ) indicates three spatial coordinates and two directional angles, the axis of symmetry of the position sensor ( 6 ) not parallel to the longitudinal axis of the flow diverter ( 4 ) is aligned. Flow Diverter (4) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Positionssensor (6) fest mit dem Flow Diverter (4) verbunden ist.Flow Diverter ( 4 ) according to one of claims 1 to 5, characterized in that the position sensor ( 6 ) fixed to the Flow Diverter ( 4 ) connected is. Flow Diverter (4) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Positionssensor (6) lösbar mit dem Flow Diverter (4) verbunden ist, so dass er nach Abschluss der Positionierung und Implantierung wieder entfernbar ist.Flow Diverter ( 4 ) according to one of claims 1 to 5, characterized in that the position sensor ( 6 ) detachable with the Flow Diverter ( 4 ) so that it is removable after completion of the positioning and implantation.
DE102010027106A 2010-07-14 2010-07-14 Flow diverter for interrupting and bypassing blood flow into aneurysm of cerebral vessels in e.g. brain during aneurysm treatment, has stents, where diverter is designed so that diverter includes size and shape covering only aneurysm region Withdrawn DE102010027106A1 (en)

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DE102010027106A DE102010027106A1 (en) 2010-07-14 2010-07-14 Flow diverter for interrupting and bypassing blood flow into aneurysm of cerebral vessels in e.g. brain during aneurysm treatment, has stents, where diverter is designed so that diverter includes size and shape covering only aneurysm region

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DE102010027106A DE102010027106A1 (en) 2010-07-14 2010-07-14 Flow diverter for interrupting and bypassing blood flow into aneurysm of cerebral vessels in e.g. brain during aneurysm treatment, has stents, where diverter is designed so that diverter includes size and shape covering only aneurysm region

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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DE102012205256A1 (en) * 2012-03-30 2013-10-02 Siemens Aktiengesellschaft Flow diverter for covering aneurysm occurring in blood vessel of brain of patient, has lateral openings for collateral vessel, which are formed on surface of flow diverter, such that openings are surrounded by reinforcing rings
DE102012212481A1 (en) * 2012-07-17 2013-11-21 Siemens Aktiengesellschaft Flow diverter for treatment and closure of aneurysm by reconstruction of arteries, comprises lateral opening and unit for inserting coil into aneurysm through opening, where larger lateral openings are provided at defined points
US11071551B2 (en) 2017-08-17 2021-07-27 Incumedx, Inc. Flow attenuation device
US11911040B2 (en) 2017-08-17 2024-02-27 Arissa Medical, Inc. Flow attenuation device
US11819215B2 (en) 2018-04-04 2023-11-21 Incumedx Inc. Embolic device with improved neck coverage

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