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DE29816878U1 - Helix stent that can be manufactured using the cutting process - Google Patents

Helix stent that can be manufactured using the cutting process

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Publication number
DE29816878U1
DE29816878U1 DE29816878U DE29816878U DE29816878U1 DE 29816878 U1 DE29816878 U1 DE 29816878U1 DE 29816878 U DE29816878 U DE 29816878U DE 29816878 U DE29816878 U DE 29816878U DE 29816878 U1 DE29816878 U1 DE 29816878U1
Authority
DE
Germany
Prior art keywords
stent
helix
turns
helical
individual
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 - Lifetime
Application number
DE29816878U
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German (de)
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.)
SCHMITZ RODE THOMAS DIPL ING D
Original Assignee
SCHMITZ RODE THOMAS DIPL ING D
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Filing date
Publication date
Application filed by SCHMITZ RODE THOMAS DIPL ING D filed Critical SCHMITZ RODE THOMAS DIPL ING D
Priority to DE29816878U priority Critical patent/DE29816878U1/en
Publication of DE29816878U1 publication Critical patent/DE29816878U1/en
Priority to EP99955729A priority patent/EP1117353A1/en
Priority to AU12605/00A priority patent/AU1260500A/en
Priority to DE19981854T priority patent/DE19981854D2/en
Priority to PCT/DE1999/002980 priority patent/WO2000016718A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • 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 sheets 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 sheets 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
    • A61F2/82—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 sheets 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
    • A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
    • 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 sheets 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 sheets 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 sheets 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 sheets 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 sheets 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 sheets 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 sheets 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 sheets 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 sheets 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
    • A61F2002/91541—Adjacent bands are arranged out of phase
    • 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 sheets 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 sheets 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Description

Dipl.-Ing. Dr. med. Thomas Schmitz-Rode
Kupferstrasse 5
52070 AachenDipl.-Ing. Dr. med. Thomas Schmitz-Rode
Kupferstrasse 5
52070 Aachen

GEBRAUCHSMUSTERANMELDUNGUTILITY MODEL REGISTRATION Im Schneid verfahren herstellbarer Helixstent "Helix stent manufactured using cutting technology "

Stents (= Endoprothesen aus Metall) werden in Hohlorgane des menschlichen Körpers implantiert, um Engstellungen zu behandeln. Sie können als gewobenes, gestricktes, gelötetes oder geschweißtes Drahtgebilde hergestellt werden. Eine Möglichkeit, Stents herzustellen, besteht darin, in ein dünnes Metallrohr mit einem fokussierten Laserstrahl ein regelmäßiges Schlitzmuster zu schneiden, das sich gleichmäßig über dem gesamten Umfang wiederholt. Beim Auf dehnen des Rohres durch einen Ballonkatheter weiten sich die Schlitze gleichmäßig auf. Der Stent wird expandiert und legt sich der Wand des Hohlorgans, das geschient werden soll, an. Alternativ kann eine Nickel-Titan-Legierung ("Memory-Metall") verwendet werden. Durch eine Wärmebehandlung wird erreicht, daß das Metallrohr bei Erwärmung von Umgebungs- auf Körpertemperatur bei Verlassen des Einführungskatheters selbst expandiert.Stents (= metal endoprostheses) are implanted in hollow organs of the human body to treat narrow positions. They can be made as woven, knitted, soldered or welded wire structures. One way of making stents is to use a focused laser beam to cut a regular slit pattern into a thin metal tube, which repeats evenly around the entire circumference. When the tube is expanded using a balloon catheter, the slits expand evenly. The stent is expanded and adheres to the wall of the hollow organ that is to be splinted. Alternatively, a nickel-titanium alloy (“memory metal”) can be used. Heat treatment ensures that the metal tube expands itself when it is heated from ambient to body temperature when it leaves the insertion catheter.

Es sind bereits Stents bekannt, die in der beschriebenen Weise hergestellt werden: der Palmaz-Stent (Johnson u. Johnson Interventional Systems, Warren, NJ, USA), der Memotherm-Stent (Bard-Angiomed, Karlsruhe) und der Sinus-Stent (Optimed Medizinische Instrumente, Ettlingen). Allen drei Stenttypen ist jedoch gemeinsam, daß sie sich aufgrund ihrer axialen Steifigkeit nur bedingt gekrümmten Segmenten von Hohlorganen anpassen können. Dies gilt insbesondere für gekrümmte Blutgefäßabschnitte, aber auch beispielsweise für das Gallenwegssystem.Stents are already known that are manufactured in the manner described: the Palmaz stent (Johnson and Johnson Interventional Systems, Warren, NJ, USA), the Memotherm stent (Bard-Angiomed, Karlsruhe) and the sinus stent (Optimed Medical Instruments, Ettlingen). However, all three types of stent have in common that, due to their axial stiffness, they can only adapt to curved segments of hollow organs to a limited extent. This applies in particular to curved sections of blood vessels, but also, for example, to the bile duct system.

Der hier beschriebenen Erfindung liegt die Aufgabe zugrunde, einen Stent zu realisieren, der im computergesteuerten Laserschneidverfahren aus einem Metallrohr-Halbzeug hergestellt werden kann und eine im Vergleich zu den bekannten Stenttypen deutlich verbesserte axiale Krümmungsfähigkeit aufweist, die eine Anpassung an gekrümmte Hohlorgane erlaubt. Eine Lösung dieser Aufgabe wurde bereits in dem Gebrauchsmuster Nr. 29721310.5 (IPC: A6IF) beschrieben.The invention described here is based on the task of realizing a stent that can be manufactured from a semi-finished metal tube using a computer-controlled laser cutting process and that has a significantly improved axial curvature capability compared to the known stent types, which allows adaptation to curved hollow organs. A solution to this problem has already been described in the utility model no. 29721310.5 (IPC: A6IF).

Zur speziellen Lösung dieser Aufgabe wird ein mit einem bestimmten Muster geschnittenes Metallrohr mit den im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen vorgeschlagen. Das Schnittmuster kann in Lasertechnik in das Rohr eingebracht werden.To specifically solve this problem, a metal tube cut with a specific pattern is proposed with the features specified in the characterizing part of claim 1. The cutting pattern can be introduced into the tube using laser technology.

Die Form des erfindungsgemäßen Schnittmusters des nicht expandierten Stents ist in Fig. 1 dargestellt.The shape of the non-expanded stent cutting pattern according to the invention is shown in Fig. 1.

Das Grundmuster besteht aus einer Helix (= Wendel; im medizinischen Sprachgebrauch meist „Spirale" genannt). Diese wird gebildet aus einer Aneinanderreihung schlitzförmig eingeschnittener Glieder (1), welche miteinander über einen Mittelsteg (2) in Verbindung stehen. Bei Ballonexpansion erhalten die Glieder (1) ein rautenförmiges Aussehen. Zur Verbesserung der Stabilität stehen die einzelnen Helix-Windungen über Querstege (3) miteinander in Verbindung. Die Querstege (3) sind dünner als die Stege (2) und die Glieder (1). Sie sind in regelmäßigen Abständen angeordnet (vorzugsweise an jedem dritten Glied (I)). Der Z-förmige Verlauf der Querstege (3) erlaubt eine Anpassung des Abstandes der benachbarten Helixwindungen zueinander. Bei Expansion des Stents in einem gekrümmten Hohlorgan lassen die Querstege im Bereich der großen Kurvatur durch Streckung einen größeren Abstand benachbarter Helixwindungen zu. Der Abschluß der Helix zu beiden Enden erfordert die Anbindung einiger mäanderförmiger Windungen (4), zur Gewährleistung der Überdeckung und eines gleichförmigen Abschlusses des Stents über dem gesamten Umfang. Die Mäander (4) sind über gerade verlaufende Querstege (5) an das jeweils benachbarte Glied (1) der Helix angebunden.The basic pattern consists of a helix (= coil; in medical parlance usually called a "spiral"). This is formed from a series of slit-shaped cut links (1), which are connected to one another via a central bar (2). When balloons expand, the links (1) take on a diamond-shaped appearance. To improve stability, the individual helix turns are connected to one another via cross bars (3). The cross bars (3) are thinner than the bars (2) and the links (1). They are arranged at regular intervals (preferably at every third link (I)). The Z-shaped course of the cross bars (3) allows the distance between the neighboring helix turns to be adjusted. When the stent is expanded in a curved hollow organ, the cross bars in the area of the greater curvature allow a larger distance between neighboring helix turns by stretching. The closure of the helix at both ends requires the connection of several meander-shaped turns (4) to ensure that the stent is covered and has a uniform finish over its entire circumference. The meanders (4) are connected to the adjacent segment (1) of the helix via straight crosspieces (5).

Claims (9)

SCHUTZANSPRUCHEPROTECTION CLAIMS 1. Im Schneidverfahren aus einem Rohr herstellbare, implantierbare, tubuläre Endoprothese („Stent"), dadurch gekennzeichnet, daß das Grundmuster eine Helix darstellt, welche sich aus einer helixförmig gewundenen Kette miteinander verbundener Einzelglieder zusammensetzt.1. Implantable, tubular endoprosthesis (“stent”) that can be produced from a tube using a cutting process, characterized in that the basic pattern is a helix, which is composed of a helically wound chain of individual links connected to one another. 2. Helixstent nach Anspruch 1, dadurch gekennzeichnet, daß die Einzelglieder im nicht-expandierten Zustand eine flach-ovale, axial orientierte Form mit einem axial verlaufenden Schlitz aufweisen, welche nach Expansion des Stents ein rautenförmiges Aussehen erlangen, und daß die Einzelglieder über einen Mittelsteg miteinander verbundenen sind.2. Helical stent according to claim 1, characterized in that the individual members in the non-expanded state have a flat-oval, axially oriented shape with an axially extending slot, which acquire a diamond-shaped appearance after expansion of the stent, and that the individual members are connected to one another via a central web. 3. Helixstent nach Anspruch 1 und 2, dadurch gekennzeichnet, daß benachbarte Helixwindungen über Querstege miteinander verbunden sind, derart, daß die Querstege direkt benachbarte Einzelglieder verbinden oder zum nächsten oder übernächsten Einzelglied verbinden.3. Helical stent according to claim 1 and 2, characterized in that adjacent helical turns are connected to one another via crossbars, such that the crossbars connect directly adjacent individual members or connect them to the next or next but one individual member. 4. Helixstent nach Anspruch 1-3, dadurch gekennzeichnet, daß die Querstege einen Z- oder S-förmigen Verlauf aufweisen.4. Helix stent according to claims 1-3, characterized in that the crossbars have a Z- or S-shaped course. 5. Helixstent nach Anspruch 1-4, dadurch gekennzeichnet, daß sich zu beiden Enden der Helix ein aus mehreren mäanderförmigen Windungen bestehender Abschnitt anschließt, wobei die Windungen entsprechend der Steigung der Helix eine abnehmende axiale Breite aufweisen, so daß sich nahezu über dem gesamtem Umfang ein gleichmäßiger stirnseitiger Abschluß des Stents ergibt.5. Helix stent according to claims 1-4, characterized in that a section consisting of several meander-shaped turns adjoins both ends of the helix, the turns having a decreasing axial width corresponding to the pitch of the helix, so that a uniform end-face termination of the stent is obtained almost over the entire circumference. 6. Helixstent nach Anspruch 1-5, dadurch gekennzeichnet, daß einige oder jede der mäanderförmigen Windungen über Quer Stege mit den Einzelgliedern der benachbarten Helixwindung verbunden sind.6. Helical stent according to claims 1-5, characterized in that some or each of the meander-shaped turns are connected to the individual elements of the adjacent helical turn via transverse webs. h · H · 7. Spirale nach Anspruch 1-6, dadurch gekennzeichnet, daß als Material eine Metalllegierung verwendet wird.7. Spiral according to claims 1-6, characterized in that a metal alloy is used as the material. 8. Spirale nach Anspruch 1-7, dadurch gekennzeichnet, daß als Material eine Memory-Metalllegierung (Nickel-Titan) verwendet wird.8. Spiral according to claims 1-7, characterized in that a memory metal alloy (nickel-titanium) is used as the material. 9. Spirale nach Anspruch 1-8, dadurch gekennzeichnet, daß für die Herstellung des Schnittmusters ein computergesteuertes Laser-Schneidverfahren eingesetzt wird.9. Spiral according to claims 1-8, characterized in that a computer-controlled laser cutting process is used to produce the cutting pattern.
DE29816878U 1998-09-21 1998-09-21 Helix stent that can be manufactured using the cutting process Expired - Lifetime DE29816878U1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE29816878U DE29816878U1 (en) 1998-09-21 1998-09-21 Helix stent that can be manufactured using the cutting process
EP99955729A EP1117353A1 (en) 1998-09-21 1999-09-20 Tubular endoprosthesis
AU12605/00A AU1260500A (en) 1998-09-21 1999-09-20 Tubular endoprosthesis
DE19981854T DE19981854D2 (en) 1998-09-21 1999-09-20 Tubular endoprosthesis
PCT/DE1999/002980 WO2000016718A1 (en) 1998-09-21 1999-09-20 Tubular endoprosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29816878U DE29816878U1 (en) 1998-09-21 1998-09-21 Helix stent that can be manufactured using the cutting process

Publications (1)

Publication Number Publication Date
DE29816878U1 true DE29816878U1 (en) 1998-12-24

Family

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DE29816878U Expired - Lifetime DE29816878U1 (en) 1998-09-21 1998-09-21 Helix stent that can be manufactured using the cutting process
DE19981854T Expired - Fee Related DE19981854D2 (en) 1998-09-21 1999-09-20 Tubular endoprosthesis

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19981854T Expired - Fee Related DE19981854D2 (en) 1998-09-21 1999-09-20 Tubular endoprosthesis

Country Status (4)

Country Link
EP (1) EP1117353A1 (en)
AU (1) AU1260500A (en)
DE (2) DE29816878U1 (en)
WO (1) WO2000016718A1 (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000016718A1 (en) * 1998-09-21 2000-03-30 Schmitz Rode Thomas Tubular endoprosthesis
US6551351B2 (en) 1999-07-02 2003-04-22 Scimed Life Systems Spiral wound stent
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US9801745B2 (en) 2010-10-21 2017-10-31 C.R. Bard, Inc. System to deliver a bodily implant
US10952879B2 (en) 2010-10-21 2021-03-23 C. R. Bard, Inc. System to deliver a bodily implant
US8512395B2 (en) 2010-12-30 2013-08-20 Boston Scientific Scimed, Inc. Stent with horseshoe shaped bridges
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