DE10335948B3 - Stent for medical applications comprises a tubular support structure made from joined ring segments and twisted by a thread with ends guided into the support structure via a deviating unit and coupled by a connector - Google Patents

Stent for medical applications comprises a tubular support structure made from joined ring segments and twisted by a thread with ends guided into the support structure via a deviating unit and coupled by a connector

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Publication number
DE10335948B3
DE10335948B3 DE2003135948 DE10335948A DE10335948B3 DE 10335948 B3 DE10335948 B3 DE 10335948B3 DE 2003135948 DE2003135948 DE 2003135948 DE 10335948 A DE10335948 A DE 10335948A DE 10335948 B3 DE10335948 B3 DE 10335948B3
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DE
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Grant
Patent type
Prior art keywords
stent
deflection
characterized
support structure
connector
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE2003135948
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German (de)
Inventor
Thomas Nissl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualimed Innovative Medizinprodukte GmbH
Original Assignee
Qualimed Innovative Medizinprodukte GmbH
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Publication date
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90Stents 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
    • A61F2/91Stents 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90Stents 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
    • A61F2/91Stents 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
    • A61F2/915Stents 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90Stents 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
    • A61F2/91Stents 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
    • A61F2/915Stents 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
    • A61F2002/91533Stents 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90Stents 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
    • A61F2/91Stents 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
    • A61F2/915Stents 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
    • A61F2002/9155Adjacent bands being connected to each other
    • A61F2002/91566Adjacent bands being connected to each other connected trough to trough
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2002/9505Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
    • A61F2002/9511Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument the retaining means being filaments or wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2002/9528Instruments specially adapted for placement or removal of stents or stent-grafts for retrieval of stents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028Shapes in the form of latin or greek characters
    • A61F2230/0054V-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Abstract

Stent comprises a tubular support structure (2) made from joined ring segments (3, 4, 5) and twisted by a thread (11) with ends (12, 13) guided into the support structure via a deviating unit (14) and coupled by a connector (17). Preferred Features: The deviating unit is a deviating element provided on one ring segment or has two deviating elements arranged at a distance from each other on the periphery of the support structure. The deviating unit is arranged on the inner side of the ring segment (3) facing the center of the stent. Additional guiding elements are provided in the support structure.

Description

  • Die Erfindung betrifft einen Stent gemäß den Merkmalen von Patentanspruch 1. The invention relates to a stent according to the features of patent claim. 1
  • Stents kommen bei der Behandlung von Stenosen zur Anwendung. Stents are used in the treatment of stenoses used. Stenosen sind angeborene oder krankheitsbedingt erworbene Verschlüsse und Verengungen von tubulären Körperröhren. Stenoses are congenital or acquired illness closures and constrictions of tubular body tubes. Ursachen für Stenosen sind häufig Tumore, die auf die Körperröhren drücken oder Ablagerungen, welche die Körperröhren verschließen. Causes of stenosis are often tumors that press the body tubes or deposits that close the body tubes. Die Stenosen können durch operative und nicht operative Maßnahmen geöffnet werden. The stenosis can be opened by surgical and non-surgical measures. Bei den nicht operativen Maßnahmen werden Stents durch Kathetertechniken oder Einführhilfen in das intrakorporale Gefäß im Bereich der Stenose eingebracht. In the non-operative measures stents are introduced through catheter techniques or insertion aids in the intracorporeal vessel in the area of ​​the stenosis. Die Stents fungieren dort als Gefäßprothese zur Abstützung der Gefäßinnenwände. Stents act there as a vascular prosthesis for supporting the vessel interior walls.
  • In verschiedenen Einsatzbereichen, beispielsweise Bronchus, Biliary, Trachea oder Oesophagus müssen die Stents in Abhängigkeit vom Krankheits- bzw. Behandlungsverlauf wieder aus dem Köper entfernt werden können. In various areas, such as bronchus, Biliary, trachea or esophagus, the stent must be able to be removed from the body again, depending on the disease or the course of treatment. Dies kann nicht unproblematisch sein, da neu gebildetes Gewebe an das Stützgerüst heran und sogar durch dieses hindurchgewachsen sein kann, was bei der Entfernung eines Stens zu Komplikationen führen kann. This may not be a problem, may be because newly formed tissue on the scaffold approach and even through it has grown, which may result in the removal of a Sten complications.
  • In diesem Zusammenhang zählt durch die In this context, one by the DE 101 18 944 A1 DE 101 18 944 A1 ein Stent zum Stand der Technik, dessen Stützgerüst außen von einem Faden oder Draht umschlungen ist. a stent of the prior art, whose support structure is externally wrapped by a thread or wire. Durch Ziehen an den Fadenenden, die jeweils mit einer Schlaufe o.ä. By pulling on the thread ends, etc. each with a loop ausgestattet sind, wird das Stützgerüst radial verjüngt und lässt sich hierdurch entnehmen. are equipped, the scaffold is radially tapered and can be taken thereby. Insbesondere, wenn der Draht oder Faden in mehrfacher Wicklung um das Stützgerüst geführt oder geflochten ist, kommt es zu einer hohen Reibung zwischen den beiden Stentkomponenten, was sich nachteilig auf den Explantationsvorgang auswirkt. Specifically, when the wire or thread is guided in multiple windings around the support frame or braided, there is a high friction between the two stent components, which has a disadvantageous effect on the Explantationsvorgang. Auch ist das Ergreifen der Fadenenden teilweise aufwendig. Even grasping the thread ends is partially consuming.
  • Der Erfindung liegt daher die Aufgabe zu Grunde, einen funktionell verbesserten, entfernbaren Stent zu schaffen. The invention is therefore based on the object to provide a functionally improved, removable stent.
  • Die Lösung dieser Aufgabe besteht nach der Erfindung in einem Stent gemäß den Merkmalen von Patentanspruch 1. This object is according to the invention in a stent according to the features of patent claim. 1
  • Kernpunkt der Erfindung bildet die Maßnahme, dass das Stützgerüst des Stents außen von einem Faden umschlungen ist und die Fadenenden über eine Umlenkung von außen in das Stützgerüst geführt werden, wo sie durch einen Verbinder gekoppelt sind. Core of the invention provides the measure that the support structure of the stent is externally wrapped by a thread, and the thread ends are guided via a deflection from the outside into the scaffold, where they are coupled by a connector.
  • Auf diese Weise wird die Reibung im Gegensatz zu einem gefädelten Faden deutlich verringert, was den Explantationsvorgang eines Stents wesentlich verbessert. In this way, the friction as opposed to a gefädelten thread is significantly reduced, which significantly improves the Explantationsvorgang a stent. Die im Inneren des Stützgerüsts durch die Verbindung gekoppelten Enden können auf einfache Weise mit einem geeigneten Instrument ergriffen werden. The coupled inside of the scaffold by the connecting ends can be gripped in a simple manner with a suitable instrument. Sollten die Ränder die Stents granuliert oder eingewachsen sein, kann durch Ziehen des Fadens das Stützgerüst vorzugsweise partiell im Bereich des ersten Ringsegments zusammengezogen werden. Should the edges be granulated, the stents or grown, the scaffold can be preferably partially pulled together in the area of ​​the first ring segment by pulling the thread. Der so eingeschnürte Stent kann dann aus der Körperröhre entfernt werden. The so constricted stent can then be removed from the body tube.
  • Als Faden kommt ein biokompatibeler, nicht auflösbarer Faden zum Einsatz. As a thread biokompatibeler, unresolvable thread is used. Unter Faden ist erfindungsgemäß auch ein Draht zu verstehen. Lower thread is inventively understand a wire.
  • Die Umlenkung für die Fadenenden kann grundsätzlich durch verschiedenartig gestaltete Umlenkelemente realisiert sein, wobei ösenartige oder hakenartige Umlenkelemente als besonders vorteilhaft angesehen werden. The deflection of the yarn ends can basically be realized by variously shaped deflection elements, said eyelet or hook-like deflecting elements are regarded as particularly advantageous. Die Umlenkelemente sollen den Faden zuverlässig halten und führen. The deflection should hold the thread reliably and run.
  • Nach den Merkmalen von Patentanspruch 2 wird die Umlenkung durch zumindest ein an einem Ringsegment vorgesehenes Umlenkelement realisiert. According to the features of patent claim 2, the deflection is realized by at least one ring segment provided on a deflecting element.
  • Bevorzugt ist die Umlenkung durch zwei Umlenkelemente, beispielsweise Ösen gebildet, welche auf dem Umfang des Stützgerüstes mit Abstand zueinander angeordnet sind (Patentanspruch 3). the deflection by two deflection elements, for example eyelets is preferably formed, which are arranged on the circumference of the supporting structure apart from each other (claim 3).
  • Der Explantationsvorgang kann bereits deutlich vereinfacht werden, wenn ein oder zwei endseitige Ringsegmente eines Stents zusammengezogen werden können. The Explantationsvorgang videos easily already when one or two end ring segments of a stent can be contracted. Demzufolge ist nach den Merkmalen von Patentanspruch 4 vorgesehen, dass die Umlenkung am in Stentlängsachse gesehen endseitigen Ringsegment vorgesehen ist. Accordingly it is provided according to the features of claim 4, that the deflection is provided on the longitudinal axis seen in stent end ring segment.
  • Eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Stents sieht nach Patentanspruch 5 vor, dass die Umlenkung auf der zur Stentmitte weisenden inneren Seite des endseitigen Ringsegments angeordnet ist. A further advantageous embodiment of the stent of the invention provides according to claim 5, that the deflection is arranged on the side facing the stent middle inner side of the end ring segment.
  • Eine alternative Ausgestaltung ist Gegenstand von Patentanspruch 6. Danach ist die Umlenkung durch zwei Umlenkelemente gebildet, von denen ein erstes Umlenkelement auf der zur Stentmitte weisenden inneren Seite eines Ringsegments und das zweite Umlenkelement auf der äußeren Seite des Ringsegments angeordnet ist. An alternative embodiment is the subject of claim 6. Thereafter, the deflection is formed by two deflection elements of which a first deflection element is arranged on the side facing the stent middle inner side of a ring segment and the second deflecting element on the outer side of the ring segment. Die beiden Umlenkelemente liegen demzufolge sowohl über dem Umfang des Stützgerüsts als auch in Stentlängsachse gesehen mit Abstand zueinander. The two deflection elements are thus both on the periphery of the scaffold as well as in longitudinal stent axis seen at a distance to each other. Durch den auf diese Weise erreichten diagonalen Faden verlauf über das Ringsegment und die Verbinderstreben wird beim Ziehen an den Fadenenden ein gesamtes Ringsegment zusammengezogen. Through the achieved in this way diagonal thread running through the ring segment and the tie bars is contracted an entire ring segment when pulling on the thread ends.
  • Weiterhin kann die Umlenkung auch durch zwei Umlenkelemente gebildet sein, von denen ein erstes Umlenkelement am in Stentlängsachse gesehen endseitigen Ringsegment und das zweite Umlenkelement am benachbarten inneren Ringsegment vorgesehen ist (Patentanspruch 7). Furthermore, the deflector may also be formed by two deflection elements of which a first deflection element to the stent longitudinal axis viewed in the end-side annular segment, and the second deflecting element is provided on the adjacent inner ring segment (claim 7).
  • Nach den Merkmalen von Patentanspruch 8 besteht der Verbinder aus einem röntgensichtbaren Material. According to the features of claim 8, the connector is made of a radiopaque material. Auf diese Weise ist die Koppelstelle an den Fadenenden röntgenologisch erfassbar, was den medizinischen Eingriff zum Explantieren eines Stents erleichtert. In this way the coupling point of the thread ends is radiographically detectable, facilitating medical intervention for explantation of a stent.
  • Zusätzlich können im Stützgerüst weitere Führungselemente für den Faden vorgesehen sein, um die gezielte Lage des Fadens auf dem Stützgerüst zu unterstützen, wie dies Patentanspruch 9 vorsieht. In addition, the support frame further guiding elements may be provided for the yarn to aid in the targeted position of the thread on the support structure, as provided in claim. 9
  • Die Ringsegmente selber werden aus sich wellenförmig endlos aneinander schließenden Streben gebildet, wobei gemäß Patentanspruch 10 benachbarte Ringsegmente durch Verbinderstreben gekoppelt sind. The ring segments themselves are formed from undulating endlessly to each other closing struts, Patent Claim 10 adjacent ring segments are coupled by connector struts invention. In an sich bekannter Weise weist jede Verbinderstrebe eine im wesentlichen parallel zur Stentlängsachse verlaufenden Longitudinalabschnitt und einen quer hierzu ausgerichteten U- oder V-förmig konfigurierten Strebenabschnitt auf (Patentanspruch 11). In known manner, each connector strut has a substantially parallel to the stent longitudinal axis and a longitudinal portion transversely thereto oriented U- or V-shaped struts configured portion (claim 11).
  • Diese Ausgestaltung des Stützgerüstes gewährleistet eine hohe und anatomisch flexible Stützkraft und ist längenstabil, auch bei äußerer Kompression. This configuration of the supporting structure ensures a high and anatomically flexible supporting force and is length-stable, even under external compression.
  • Die Erfindung ist nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben. The invention is described below with reference to drawings in the embodiments shown. Es zeigen: Show it:
  • 1 1 eine dreidimensionale Darstellung eines erfindungsgemäßen Stents; a three-dimensional representation of a stent;
  • 2 2 bis to 5 5 u. u. 7 7 jeweils einen Ausschnitt aus einem Stent mit der Darstellung von fünf verschiedenen Konfigurationen des Stützgerüstes und in each case a section of a stent with the representation of five different configurations of the support frame and
  • 6 6 einen Ausschnitt aus einem Stützgerüst mit der Darstellung einer Führungsöse. a section of a support structure with the representation of a guide eye.
  • In allen Figuren tragen einander entsprechende Bauteile die gleichen Bezugszeichen. In all the figures corresponding parts bear the same reference numerals.
  • Die The 1 1 zeigt einen erfindungsgemäßen Stent in einer dreidimensionalen Darstellung. shows a stent according to the invention in a three-dimensional representation.
  • Der Stent the stent 1 1 weist ein tubuläres Stützgerüst includes a tubular support frame 2 2 auf aus axial aufeinander folgenden, untereinander verbundenen Ringsegmenten on of axially successive, interconnected ring segments 3 3 , . 4 4 , . 5 5 . , Jedes Ringsegment Each ring segment 3 3 , . 4 4 , . 5 5 ist aus sich wellen- bzw. zick-zack-förmig endlos aneinanderschließenden Streben is wave-off or zig-zag shape to each other endlessly closing struts 6 6 , . 7 7 gebildet. educated. Benachbarte Ringsegmente Adjacent ring segments 3 3 , . 4 4 und and 4 4 , . 5 5 sind durch Verbinderstreben are by connector struts 8 8th gekoppelt. coupled. Die Verbinderstreben The tie bars 8 8th weisen einen im Wesentlichen parallel zur Stentlängsachse L verlaufenden Longitudinalabschnitt have a substantially parallel to the stent longitudinal axis L longitudinal portion 9 9 und einen quer hierzu ausgerichteten U- oder V-förmig konfigurierten Strebenabschnitt and a transverse thereto oriented U- or V-shaped struts configured portion 10 10 auf (siehe hierzu auch on (see also 2 2 ). ).
  • Die Abbildung gemäß der The figure, according to the 1 1 zeigt den Stent shows the stent 1 1 in seinem aufgeweitetem Stützzustand. in his flare-supporting state.
  • Das Stützgerüst The scaffold 2 2 wird außen von einem Faden is the outside of a thread 11 11 umschlungen. entwined. Zum besseren Verständnis ist der Faden For better understanding of the thread 11 11 in der in the 1 1 mit Abstand zum Stützgerüst a distance from the support structure 2 2 dargestellt. shown. Der Faden The string 11 11 umschlingt das Stützgerüst wraps around the scaffold 2 2 zwischen den Ringsegmenten between the ring segments 3 3 , . 4 4 ringförmig. annular. Die beiden Fadenenden The two thread ends 12 12 , . 13 13 des Fadens the thread 11 11 sind über eine Umlenkung are a diversion 14 14 in Form zweier von Ösen gebildeten Umlenkelementen in the form of two deflecting elements formed of eyelets 15 15 , . 16 16 in das Innere des Stützgerüsts in the interior of the scaffold 2 2 geführt. guided. Dort sind die Fadenenden There are the yarn ends 12 12 , . 13 13 durch einen Verbinder by a connector 17 17 aus einem röntgensichtbaren Material fest miteinander gekoppelt. coupled from a radiopaque material to each other. In der In the 1 1 ist der Verbinder , the connector 17 17 verein facht dargestellt. shown in simplified form. Der Verbinder the connector 17 17 koppelt die beiden Fadenenden couples the two yarn ends 12 12 , . 13 13 fest und quasi unlösbar miteinander. solid and quasi inseparably.
  • 2 2 zeigt einen Ausschnitt aus dem shows a section of the 1 1 entsprechenden Stützgerüst appropriate support structure 2 2 . , Die Umlenkung the redirection 14 14 ist am in Stentlängsachse L gesehen endseitigen Ringsegment as seen in the stent longitudinal axis L at the end ring segment 3 3 vorgesehen. intended. Wobei sind die beiden Umlenkelemente Which are the two deflection elements 15 15 , . 16 16 auf der zur Stentmitte weisenden inneren Seite des Ringsegmentes on the side facing the stent middle inner side of the ring segment 3 3 angeordnet sind und zwar jeweils im Übergangsbereich are arranged in each case in the transition region 18 18 zwischen zwei Streben between two struts 6 6 , . 7 7 . , Auf dem Umfang des Stützgerüstes On the periphery of the support frame 2 2 liegen die Umlenkelemente are the deflectors 15 15 , . 16 16 mit Abstand A zueinander. at a distance A from each other.
  • Der Faden The string 11 11 verläuft zwischen den Ringsegmenten passes between the ring segments 3 3 und and 4 4 und umschlingt hierbei die Verbinderstreben and in this case wraps around the tie bars 8 8th mit Ausnahme der Verbinderstrebe with the exception of the tie bar 8' 8th' zwischen den beiden Umlenkelementen between the two deflection elements 15 15 , . 16 16 . ,
  • Zum Entfernen eines implantierten Stents For removing an implanted stent 1 1 aus einer Körperröhre wird der Faden 11 im Inneren des Stützgerüsts 2 am Verbinder from a body tube of the thread 11 inside the support stand 2 is on the connector 17 17 ergriffen. taken. Durch den von außen aufgebrachten Zug werden die beiden Ringsegmente By the externally applied train the two ring segments are 3 3 , . 4 4 über die Verbinderstreben on the tie bars 8 8th zusammengezogen und im Durchmesser verringert. contracted and reduced in diameter. Anschließend kann der Stent The stent can 1 1 problemlos entfernt werden. be safely removed.
  • Der Faden The string 11 11 kann sich endseitig auch überlappen bzw. kreuzen, bevor die Fadenenden can ends also overlap or intersect before the yarn ends 12 12 , . 13 13 über die Umlenkelemente on the deflector 15 15 bzw. or. 16 16 der Umlenkung the diversion 14 14 in das Innere des Stützgerüsts in the interior of the scaffold 2 2 geführt werden. be performed. Eine solche Situation ist in der Such a situation is in the 7 7 dargestellt. shown. Ansonsten entspricht der Aufbau des Stents dem zuvor anhand der Otherwise, the structure of the stent corresponding to the above with reference to 1 1 und and 2 2 beschriebenen. described. Bei dieser Konfiguration werden die Streben In this configuration, the struts 6 6 , . 7 7 mit den Umlenkelementen with the deflector 15 15 , . 16 16 an den Verbinder of the connector 8' 8th' herangezogen und somit alle Verbinder used and thus all of the connectors 8 8th , . 8' 8th' und die Ringsegmente and the ring segments 3 3 , . 4 4 durch Zug an den Fadenenden by train to the thread ends 12 12 , . 13 13 über den Faden over the thread 11 11 radial eingeschnürt. radially constricted.
  • Bei der Ausführungsform eines Stützgerüstes In the embodiment of a support frame 2 2 gemäß der Darstellung von as shown by 3 3 wird die Umlenkung is the deflection 14 14 durch zwei Umlenkelemente by two deflection elements 19 19 , . 20 20 in Form von Ösen gebildet, von denen ein erstes Umlenkelement formed in the form of eyelets, of which a first deflection element 19 19 auf der zur Stentmitte weisenden inneren Seite eines Ringsegments on the side facing the stent middle inner side of a ring segment 3 3 und das zweite Umlenkelement and the second deflecting 20 20 auf der äußeren Seite des Ringsegments on the outer side of the ring segment 3 3 angeordnet ist. is arranged. Das erste Umlenkelement The first deflecting 19 19 befindet sich im Übergangsbereich is located in the transition zone 18 18 zwischen den Streben between the struts 6 6 , . 7 7 , wohingegen das zweite Umlenkelement , Whereas the second deflecting 20 20 im Übergangsbereich in the transition area 21 21 zwischen den Streben between the struts 6 6 , . 7 7 und der Verbinderstrebe and the connector strut 8 8th auf der von der Verbinderstrebe on the tie bar 8 8th abgewandten Seite angeordnet ist. Side remote is located.
  • Der das Stützgerüst The the scaffold 2 2 außen umschlingende Faden wrapping around the outside thread 11 11 wird wiederum über die Umlenkung is again the deflection 14 14 in das Stützgerüst into the scaffold 2 2 geführt. guided. Hierzu sind die Fadenenden For this purpose, the thread ends 12 12 , . 13 13 des Fadens the thread 11 11 durch die Umlenkelemente by the deflection elements 19 19 , . 20 20 gefädelt und im Stützgerüst threaded and the support frame 2 2 durch einen Verbinder by a connector 17 17 gekoppelt. coupled. Durch den in dieser Konfiguration erzielten diagonalen Verlauf des Fadens By the results achieved in this configuration, diagonal course of the thread 11 11 über das Ringsegment over the ring segment 3 3 wird dieses beim Zusammenziehen durch den Faden is this the contraction by the thread 11 11 in seiner Gesamtheit eingeschnürt. constricted in its entirety.
  • Eine vergleichbare Konfiguration ist in der A similar configuration is shown in the 4 4 dargestellt. shown. Auch hier ist ein erstes Umlenkelement Again, a first deflecting 22 22 in Form einer Öse auf der zur Stentmitte M weisenden inneren Seite des Ringsegments in the form of a loop on the side facing the stent middle M inner side of the ring segment 3 3 und ein zweites Umlenkelement and a second deflecting 23 23 auf der äußeren Seite des Ringsegments on the outer side of the ring segment 3 3 angeordnet. arranged. Das erste Umlenkelement The first deflecting 22 22 befindet sich am Übergangsbereich is located at the transition area 24 24 zwischen den Streben between the struts 6 6 , . 7 7 auf der inneren Seite des Ringsegments on the inner side of the ring segment 3 3 und das zweite Umlenkelement and the second deflecting 23 23 befindet sich am Übergangsbereich is located at the transition area 25 25 zwischen den Streben between the struts 6 6 , . 7 7 auf der äußeren Seite des Ringsegments on the outer side of the ring segment 3 3 , wobei der Abstand A zwischen den Umlenkelementen Wherein the distance A between the deflector 22 22 , . 23 23 über den Umfang größer ist als derjenige in der Ausführungsform des Stützgerüstes is greater around the periphery than that in the embodiment of the supporting structure 2 2 gemäß der according to the 3 3 . ,
  • Auch hier wird ein diagonaler Fadenverlauf außen am Stützgerüst Again, a diagonal thread path is outside of the supporting structure 2 2 über die Streben on the pursuit 6 6 , . 7 7 und die Verbinderstreben and the tie bars 8 8th erreicht, so dass beim Ziehen des Fadens reached, so that when pulling the thread 11 11 das gesamte Ringsegment the entire ring segment 3 3 kontrahiert wird. is contracted.
  • Bei einem Stent In a stent 1 1 mit einem Stützgerüst with a supporting structure 2 2 gemäß der Darstellung von as shown by 5 5 wird die Umlenkung is the deflection 14 14 durch zwei Umlenkelemente by two deflection elements 26 26 , . 27 27 gebildet, von denen das erste Umlenkelement formed, of which the first deflection element 26 26 am in Stentlängsachse L gesehen endseitigen Ringsegment Seen on in stent longitudinal axis L end ring segment 3 3 und das zweite Umlenkelement and the second deflecting 27 27 am benachbarten innen liegenden Ringsegment Ring segment lying on the inside adjacent 4 4 vorgesehen ist. is provided. Auch hier sind die Umlenkelemente Again, the deflection elements 26 26 , . 27 27 bevorzugt durch Ösen gebildet. preferably formed by eyelets. Der Faden The string 11 11 wird erfindungsgemäß über die Umlenkelemente According to the invention via the deflection elements 26 26 , . 27 27 von außen in das Innere des Stützgerüstes from the outside into the interior of the supporting structure 2 2 geführt und dort durch den Verbinder and out there through the connector 17 17 gekoppelt. coupled. Durch die Anbindung der Umlenkelemente By connecting the deflector 26 26 , . 27 27 am ersten inneren Segmentbereich und am zweiten äußeren Segmentbereich der Ringsegmente on the first inner segment area and the second outer segment region of the ring segments 3 3 , . 4 4 werden beide Ringsegmente will both ring segments 3 3 , . 4 4 beim Ziehen des Faden when pulling the thread 11 11 kontrahiert, worauf der Stent contracted, after which the stent 1 1 aus der Körperröhre entfernt werden kann. can be removed from the body tube.
  • Gegebenenfalls können am Stent Optionally, the stent 1 1 zusätzliche Führungselemente additional guide elements 28 28 , beispielsweise auf der einer Umlenkung , For example to that of a redirection 14 14 abgewandten Seite des Stützgerüstes Side of the supporting structure facing away from 2 2 vorgesehen sein. be provided. Ein solches Führungselement Such a guide element 28 28 ist in der is in the 6 6 beispielhaft dargestellt. exemplified. Das Führungselement The guide member 28 28 ist als Öse ausgebildet, welche einstückiger Bestandteil des Stützgerüstes is formed as a loop, which one-piece component of the support frame 2 2 im Verbindungsbereich zwischen zwei Streben the connection area between two struts 6 6 , . 7 7 ist. is.
  • 1 1
    Stent stent
    2 2
    Stützgerüst scaffold
    3 3
    Ringsegment ring segment
    4 4
    Ringsegment ring segment
    5 5
    Ringsegment ring segment
    6 6
    Strebe strut
    7 7
    Strebe strut
    8 8th
    Verbinderstrebe tie bar
    8' 8th'
    Verbinderstrebe tie bar
    9 9
    Longitudinalabschnitt longitudinal portion
    10 10
    Strebenabschnitt strut portion
    11 11
    Faden thread
    12 12
    Fadenende thread end
    13 13
    Fadenende thread end
    14 14
    Umlenkung redirection
    15 15
    Umlenkelement deflecting
    16 16
    Umlenkelement deflecting
    17 17
    Verbinder Interconnects
    18 18
    Übergangsbereich Transition area
    19 19
    Umlenkelement deflecting
    20 20
    Umlenkelement deflecting
    21 21
    Übergangsbereich Transition area
    22 22
    Umlenkelement deflecting
    23 23
    Umlenkelement deflecting
    24 24
    Übergangsbereich Transition area
    25 25
    Übergangsbereich Transition area
    26 26
    Umlenkelement deflecting
    27 27
    Umlenkelement deflecting
    28 28
    Führungselement guide element
    L L
    Stentlängsachse stent longitudinal axis
    A A
    Abstand distance
    M M
    Stentmitte stent center

Claims (11)

  1. Stent mit einem tubulären Stützgerüst ( The stent (a tubular scaffold 2 2 ) aus axial aufeinander folgenden, untereinander verbundenen Ringsegmenten ( ) (From axially consecutive, interconnected ring segments 3 3 , . 4 4 , . 5 5 ), wobei das Stützgerüst ( ), Wherein the scaffold ( 2 2 ) außen von einem Faden ( ) On the outside (of a thread 11 11 ) umschlungen ist, dadurch gekennzeichnet , dass die Fadenenden ( ) Is looped, characterized in that the thread ends ( 12 12 , . 13 13 ) über eine Umlenkung ( ) (About a deflection 14 14 ) von außen in das Stützgerüst ( ) From the outside (in the scaffold 2 2 ) geführt und dort durch einen Verbinder ( ) And performed there (by a connector 17 17 ) gekoppelt sind. ) Are coupled.
  2. Stent nach Anspruch 1, dadurch gekennzeichnet, dass die Umlenkung ( The stent of claim 1, characterized in that the deflection ( 14 14 ) durch zumindest ein an einem Ringsegment ( ) By at least one (on a ring segment 3 3 , . 4 4 ) vorgesehenes Umlenkelement ( ) Provided deflection ( 15 15 , . 16 16 ; ; 19 19 , . 20 20 ; ; 22 22 , . 23 23 ; ; 26 26 , . 27 27 ) realisiert ist. ) Is realized.
  3. Stent nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Umlenkung ( The stent of claim 1 or 2, characterized in that the deflection ( 14 14 ) durch zwei Umlenkelemente ( ) (By two deflection elements 15 15 , . 16 16 ; ; 19 19 , . 20 20 ; ; 22 22 , . 23 23 ; ; 26 26 , . 27 27 ) gebildet ist, welche auf dem Umfang des Stützgerüstes ( is formed), which (on the circumference of the supporting structure 2 2 ) mit Abstand (A) zueinander angeordnet sind. ) (With the distance A) are arranged to each other.
  4. Stent nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Umlenkung ( Stent according to one of claims 1 to 3, characterized in that the deflection ( 14 14 ) am in Stentlängsachse (L) gesehen endseitigen Ringsegment ( ) Seen at the (in the stent longitudinal axis L) end-side annular segment ( 3 3 ) vorgesehen ist. ) is provided.
  5. Stent nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Umlenkung ( Stent according to one of claims 1 to 4, characterized in that the deflection ( 14 14 ) auf der zur Stentmitte weisenden inneren Seite des Ringsegments ( ) (On the side facing the stent middle inner side of the ring segment 3 3 ) angeordnet ist. ) Is arranged.
  6. Stent nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Umlenkung ( Stent according to one of claims 1 to 4, characterized in that the deflection ( 14 14 ) durch zwei Umlenkelemente ( ) (By two deflection elements 19 19 , . 20 20 ; ; 22 22 , . 23 23 ) gebildet ist, von denen ein erstes Umlenkelement ( ) Is formed, one of which (first deflection element 19 19 ; ; 22 22 ) auf der zur Stentmitte weisenden inneren Seite eines Ringsegments ( ) (On the side facing the stent middle inner side of a ring segment 3 3 ) und das zweite Umlenkelement ( ) And the second deflecting element ( 20 20 ; ; 23 23 ) auf der äußeren Seite des Ringsegments ( ) (On the outer side of the ring segment 3 3 ) angeordnet ist. ) Is arranged.
  7. Stent nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Umlenkung ( Stent according to one of claims 1 to 3, characterized in that the deflection ( 14 14 ) durch zwei Umlenkelemente ( ) (By two deflection elements 26 26 , . 27 27 ) gebildet ist, von denen ein erstes Umlenkelement ( ) Is formed, one of which (first deflection element 26 26 ) am in Stentlängsachse (L) gesehen endseitigen Ringsegment ( ) Seen at the (in the stent longitudinal axis L) end-side annular segment ( 3 3 ) und ein zweites Umlenkelement ( ) And a second deflection element ( 27 27 ) am benachbarten Ringsegment ( ) (On the adjacent ring segment 4 4 ) vorgesehen ist. ) is provided.
  8. Stent nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Verbinder ( Stent according to one of claims 1 to 7, characterized in that the connector ( 17 17 ) aus einem röntgensichtbaren Material besteht. ) Is made of a radiopaque material.
  9. Stent nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass im Stützgerüst ( Stent according to one of claims 1 to 8, characterized in that (in the supporting framework 2 2 ) zusätzliche Führungselemente ( ) Additional guide elements ( 28 28 ) vorgesehen sind. are provided).
  10. Stent nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Ringsegmente ( Stent according to one of claims 1 to 9, characterized in that the ring segments ( 3 3 , . 4 4 , . 5 5 ) aus sich wellenförmig endlos aneinanderschließenden Streben ( ) Of undulating endless another closing braces ( 6 6 , . 7 7 ) gebildet und benachbarte Ringsegmente ( ) Is formed and adjacent ring segments ( 3 3 , . 4 4 ; ; 4 4 , . 9 9 ) durch Verbinderstreben ( ) (By connector struts 8 8th , . 8' 8th' ) gekoppelt sind. ) Are coupled.
  11. Stent nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass jede Verbinderstrebe ( Stent according to one of claims 1 to 10, characterized in that each connector strut ( 8 8th , . 8' 8th' ) einen im wesentlichen parallel zur Stentlängsachse (L) verlaufenden Longitudinalabschnitt ( ) Has a substantially longitudinal axis of the stent (L) parallel longitudinal portion ( 9 9 ) und einen quer hierzu ausgerichteten U- oder V-förmig konfigurierten Strebenabschnitt ( ) And a transverse thereto oriented U- or V-shaped struts configured portion ( 10 10 ) aufweist. ) having.
DE2003135948 2003-08-04 2003-08-04 Stent for medical applications comprises a tubular support structure made from joined ring segments and twisted by a thread with ends guided into the support structure via a deviating unit and coupled by a connector Expired - Fee Related DE10335948B3 (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1673034A2 (en) * 2003-09-30 2006-06-28 Alveolus Inc. Removable stent
WO2007006562A1 (en) 2005-07-14 2007-01-18 Qualimed Innovative Medizinprodukte Gmbh Temporary stent
DE102007025921A1 (en) * 2007-06-02 2008-12-04 Biotronik Vi Patent Ag A medical implant, in particular stent
DE102008013948A1 (en) * 2008-03-02 2009-09-17 Transcatheter Technologies Gmbh Catheter for removably receiving e.g. heart valve supporting stent, has controlling device controlling expanding and unfolding of implant from diameter to another diameter and retraction of implant from latter diameter to former diameter
DE102009003890A1 (en) * 2009-01-02 2010-07-08 Bioregeneration Gmbh Device having a in a vessel of the body of a patient implantable device and a liner and method for producing same
US7896915B2 (en) 2007-04-13 2011-03-01 Jenavalve Technology, Inc. Medical device for treating a heart valve insufficiency
US8062355B2 (en) 2005-11-04 2011-11-22 Jenavalve Technology, Inc. Self-expandable medical instrument for treating defects in a patient's heart
US8080053B2 (en) 2006-08-01 2011-12-20 Merit Medical Systems, Inc. Stent, stent removal and repositioning device, and associated methods
US8142488B2 (en) 2004-10-25 2012-03-27 Merit Medical Systems, Inc. Stent removal and repositioning aid and associated method
US8317858B2 (en) 2008-02-26 2012-11-27 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US8398704B2 (en) 2008-02-26 2013-03-19 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US8465540B2 (en) 2008-02-26 2013-06-18 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis
US8468667B2 (en) 2009-05-15 2013-06-25 Jenavalve Technology, Inc. Device for compressing a stent
DE102012101103B3 (en) * 2012-02-10 2013-07-04 Jotec Gmbh Stent Graft with fixing and delivery system
US8679174B2 (en) 2005-01-20 2014-03-25 JenaValve Technology, GmbH Catheter for the transvascular implantation of prosthetic heart valves
US8834561B2 (en) 2005-10-28 2014-09-16 Jenavalve Technology Gmbh Device for the implantation and fixation of prosthetic valves
DE102013106463A1 (en) 2013-06-20 2014-12-24 Jotec Gmbh stent graft
US9044318B2 (en) 2008-02-26 2015-06-02 Jenavalve Technology Gmbh Stent for the positioning and anchoring of a valvular prosthesis
US9138315B2 (en) 2007-04-13 2015-09-22 Jenavalve Technology Gmbh Medical device for treating a heart valve insufficiency or stenosis
US9168130B2 (en) 2008-02-26 2015-10-27 Jenavalve Technology Gmbh Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US9295551B2 (en) 2007-04-13 2016-03-29 Jenavalve Technology Gmbh Methods of implanting an endoprosthesis
US9510947B2 (en) 2011-10-21 2016-12-06 Jenavalve Technology, Inc. Catheter system for introducing an expandable heart valve stent into the body of a patient
US9597182B2 (en) 2010-05-20 2017-03-21 Jenavalve Technology Inc. Catheter system for introducing an expandable stent into the body of a patient
US9744031B2 (en) 2010-05-25 2017-08-29 Jenavalve Technology, Inc. Prosthetic heart valve and endoprosthesis comprising a prosthetic heart valve and a stent
US9839515B2 (en) 2005-12-22 2017-12-12 Symetis, SA Stent-valves for valve replacement and associated methods and systems for surgery
US9867694B2 (en) 2013-08-30 2018-01-16 Jenavalve Technology Inc. Radially collapsible frame for a prosthetic valve and method for manufacturing such a frame
US9867699B2 (en) 2008-02-26 2018-01-16 Jenavalve Technology, Inc. Endoprosthesis for implantation in the heart of a patient
US9878127B2 (en) 2012-05-16 2018-01-30 Jenavalve Technology, Inc. Catheter delivery system for heart valve prosthesis

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118944A1 (en) * 2001-04-18 2002-10-24 Qualimed Innovative Medizin Pr Removeable mainly cylindrical implant esp. stent consists of open metal/plastic net with reduceable diameter, enclosed by wire spiral with catch loop at the end for removal by surgical instrument

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118944A1 (en) * 2001-04-18 2002-10-24 Qualimed Innovative Medizin Pr Removeable mainly cylindrical implant esp. stent consists of open metal/plastic net with reduceable diameter, enclosed by wire spiral with catch loop at the end for removal by surgical instrument

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7942921B2 (en) 2003-09-30 2011-05-17 Merit Medical Systems, Inc. Removable stent
EP1673034A4 (en) * 2003-09-30 2007-05-30 Alveolus Inc Removable stent
EP1673034A2 (en) * 2003-09-30 2006-06-28 Alveolus Inc. Removable stent
US8142488B2 (en) 2004-10-25 2012-03-27 Merit Medical Systems, Inc. Stent removal and repositioning aid and associated method
US9775705B2 (en) 2005-01-20 2017-10-03 Jenavalve Technology, Inc. Methods of implanting an endoprosthesis
US9788945B2 (en) 2005-01-20 2017-10-17 Jenavalve Technology, Inc. Systems for implanting an endoprosthesis
US8679174B2 (en) 2005-01-20 2014-03-25 JenaValve Technology, GmbH Catheter for the transvascular implantation of prosthetic heart valves
WO2007006562A1 (en) 2005-07-14 2007-01-18 Qualimed Innovative Medizinprodukte Gmbh Temporary stent
CN101247777B (en) 2005-07-14 2013-06-19 夸利梅德创新医药产品有限公司 Temporary stent
US8834561B2 (en) 2005-10-28 2014-09-16 Jenavalve Technology Gmbh Device for the implantation and fixation of prosthetic valves
US9402717B2 (en) 2005-10-28 2016-08-02 Jenavalve Technology, Inc. Device for the implantation and fixation of prosthetic valves
US9855142B2 (en) 2005-10-28 2018-01-02 JenaValve Technologies, Inc. Device for the implantation and fixation of prosthetic valves
USRE45790E1 (en) 2005-10-28 2015-11-03 Jenavalve Technology Gmbh Device for the implantation and fixation of prosthetic valves
US9044320B2 (en) 2005-10-28 2015-06-02 Jenavalve Technology Gmbh Device for the implantation and fixation of prosthetic valves
USRE45962E1 (en) 2005-10-28 2016-04-05 Jenavalve Technology Gmbh Device for the implantation and fixation of prosthetic valves
DE102005052628B4 (en) * 2005-11-04 2014-06-05 Jenavalve Technology Inc. Self-expanding, flexible wire mesh with integrated valve prosthesis for the transvascular cardiac valve replacement and a system comprising such a device and a delivery catheter
US8062355B2 (en) 2005-11-04 2011-11-22 Jenavalve Technology, Inc. Self-expandable medical instrument for treating defects in a patient's heart
US9839515B2 (en) 2005-12-22 2017-12-12 Symetis, SA Stent-valves for valve replacement and associated methods and systems for surgery
US8080053B2 (en) 2006-08-01 2011-12-20 Merit Medical Systems, Inc. Stent, stent removal and repositioning device, and associated methods
US8685085B2 (en) 2007-04-13 2014-04-01 JenaValve Technologies GmbH Medical device for treating a heart valve insufficiency
US7914575B2 (en) 2007-04-13 2011-03-29 Jenavalve Technology, Inc. Medical device for treating a heart valve insufficiency
US9445896B2 (en) 2007-04-13 2016-09-20 Jenavalve Technology, Inc. Methods for treating a heart valve insufficiency or stenosis
US9295551B2 (en) 2007-04-13 2016-03-29 Jenavalve Technology Gmbh Methods of implanting an endoprosthesis
US9339386B2 (en) 2007-04-13 2016-05-17 Jenavalve Technology, Inc. Medical device for treating a heart valve insufficency
US9918835B2 (en) 2007-04-13 2018-03-20 Jenavalve Technology, Inc. Medical device for treating a heart valve insufficency
US9138315B2 (en) 2007-04-13 2015-09-22 Jenavalve Technology Gmbh Medical device for treating a heart valve insufficiency or stenosis
US7896915B2 (en) 2007-04-13 2011-03-01 Jenavalve Technology, Inc. Medical device for treating a heart valve insufficiency
DE102007025921A1 (en) * 2007-06-02 2008-12-04 Biotronik Vi Patent Ag A medical implant, in particular stent
US9044318B2 (en) 2008-02-26 2015-06-02 Jenavalve Technology Gmbh Stent for the positioning and anchoring of a valvular prosthesis
US9168130B2 (en) 2008-02-26 2015-10-27 Jenavalve Technology Gmbh Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US9265631B2 (en) 2008-02-26 2016-02-23 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US8790395B2 (en) 2008-02-26 2014-07-29 Jenavalve Technology Gmbh Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US9877828B2 (en) 2008-02-26 2018-01-30 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US9867699B2 (en) 2008-02-26 2018-01-16 Jenavalve Technology, Inc. Endoprosthesis for implantation in the heart of a patient
US9987133B2 (en) 2008-02-26 2018-06-05 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US9439759B2 (en) 2008-02-26 2016-09-13 Jenavalve Technology, Inc. Endoprosthesis for implantation in the heart of a patient
US8465540B2 (en) 2008-02-26 2013-06-18 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis
US8317858B2 (en) 2008-02-26 2012-11-27 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US8398704B2 (en) 2008-02-26 2013-03-19 Jenavalve Technology, Inc. Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
US9707075B2 (en) 2008-02-26 2017-07-18 Jenavalve Technology, Inc. Endoprosthesis for implantation in the heart of a patient
US9681968B2 (en) 2008-03-02 2017-06-20 Venus Medtech (Hangzhou), Inc. Stent which is reduceable again in its diameter from an expanded state in a controlled manner
DE102008013948A1 (en) * 2008-03-02 2009-09-17 Transcatheter Technologies Gmbh Catheter for removably receiving e.g. heart valve supporting stent, has controlling device controlling expanding and unfolding of implant from diameter to another diameter and retraction of implant from latter diameter to former diameter
DE102009003890A1 (en) * 2009-01-02 2010-07-08 Bioregeneration Gmbh Device having a in a vessel of the body of a patient implantable device and a liner and method for producing same
US8468667B2 (en) 2009-05-15 2013-06-25 Jenavalve Technology, Inc. Device for compressing a stent
US9597182B2 (en) 2010-05-20 2017-03-21 Jenavalve Technology Inc. Catheter system for introducing an expandable stent into the body of a patient
US9744031B2 (en) 2010-05-25 2017-08-29 Jenavalve Technology, Inc. Prosthetic heart valve and endoprosthesis comprising a prosthetic heart valve and a stent
US9510947B2 (en) 2011-10-21 2016-12-06 Jenavalve Technology, Inc. Catheter system for introducing an expandable heart valve stent into the body of a patient
DE102012101103B3 (en) * 2012-02-10 2013-07-04 Jotec Gmbh Stent Graft with fixing and delivery system
WO2013117718A1 (en) 2012-02-10 2013-08-15 Jotec Gmbh Stent graft with fixing elements and insertion system
US9861503B2 (en) 2012-02-10 2018-01-09 Jotec Gmbh Stent graft with fixing elements and insertion system
US9878127B2 (en) 2012-05-16 2018-01-30 Jenavalve Technology, Inc. Catheter delivery system for heart valve prosthesis
DE102013106463A1 (en) 2013-06-20 2014-12-24 Jotec Gmbh stent graft
US9867694B2 (en) 2013-08-30 2018-01-16 Jenavalve Technology Inc. Radially collapsible frame for a prosthetic valve and method for manufacturing such a frame

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