DE10323475A1 - Medical stent implant has numerous adjacent cells laterally transposed rows - Google Patents
Medical stent implant has numerous adjacent cells laterally transposed rows Download PDFInfo
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- DE10323475A1 DE10323475A1 DE2003123475 DE10323475A DE10323475A1 DE 10323475 A1 DE10323475 A1 DE 10323475A1 DE 2003123475 DE2003123475 DE 2003123475 DE 10323475 A DE10323475 A DE 10323475A DE 10323475 A1 DE10323475 A1 DE 10323475A1
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- stent
- cells
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
- A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0054—V-shaped
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Physics & Mathematics (AREA)
- Vascular Medicine (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Die Erfindung betrifft einen Stent und dessen Verwendung zum Implantieren in einen lebenden Körper, mit einer Vielzahl von aneinander angrenzenden Zellen, die in Reihen angeordnet sind. Darüber hinaus betrifft die Erfindung einen Stent zum Implantieren in einen lebenden Körper, mit einer Vielzahl von aneinander angrenzenden Zellen, deren Wände je aus Wandabschnitten ausgebildet sind, von denen zwei im wesentlichen V-förmige Wandabschnitte einander gegenüberliegend angeordnet sind und an. ihren Schenkelenden durch gekrümmte Brückenabschnitte miteinander verbunden sind. Insbesondere betrifft die Erfindung die Verwendung eines intraluminalen Stents zum Implantieren in Lumen mit unterschiedlichen Eigenschaften. Solche unterschiedlichen Eigenschaften von Lumen können verschiedene Krümmungen, Seitenverzweigungen, variable Durchmesser oder verschieden nachgiebige Lumenwände sein.The The invention relates to a stent and its use for implantation in a living body, with a large number of adjacent cells arranged in rows are arranged. Furthermore The invention relates to a stent for implantation in a living Body, with a multitude of adjoining cells, the walls of which each Wall sections are formed, two of which are essentially V-shaped Wall sections opposite each other are arranged and on. their thigh ends through curved bridge sections are interconnected. In particular, the invention relates the use of an intraluminal stent for implantation in lumens with different properties. Such different characteristics of lumens can different curvatures, Side branches, variable diameters or different compliant lumen walls his.
Stents dieser Art werden verwendet, um verschieden Kanäle lebender Körper, wie z.B. Blutgefäße, Speiseröhre, Harnröhre, Nierengänge, durch Expandieren einer röhrenförmigen Stent-Struktur im Inneren des Kanals gegen Kollabieren oder Verschließen zu schützen und/oder als Träger von Medikamenten in Körperkanälen eine zumindest lokale Therapie zu ermöglichen. Der Stent muß radial im Kanal expandierbar sein, um die Kanalwand zu stützen. Darüber hinaus muß der Stent im expandierten Zustand flexibel bzw. schlauchartig sein, um die Stützfunktion auch in gebogenen Kanal- bzw. Aderbereichen zu ermöglichen. Weiterhin muß der Stent auch im komprimierten Zustand flexibel sein, um durch gebogene bzw. kurvige Kanäle und Blutgefäße gelangen zu können.stents These types are used to channel different living bodies, such as e.g. Blood vessels, esophagus, urethra, kidney ducts, through Expand a tubular stent structure to protect against collapse or sealing inside the channel and / or as a carrier of drugs in body channels a to enable at least local therapy. The stent must be radial be expandable in the channel to support the channel wall. Furthermore must the Stent in the expanded state be flexible or tubular, around the support function to enable also in curved duct or core areas. Furthermore, the Stent can also be flexible in the compressed state to be bent through or curvy channels and blood vessels enter to be able to.
Um dies zu erreichen werden bei bekannten Stents verschiedene funktionale Geometrieelemente als Wandabschnitte zu einer Vielzahl Zellen kombiniert, die aneinander angrenzen. Die einzelnen Wandabschnitte sind in bestimmter Weise, beispielsweise gekrümmt oder gerade, ausgebildet, um dem Stent die gewünschten Deformations-Eigenschaften zu verleihen. Damit eine radiale Expansion des Stents ermöglicht ist, sind sogenannten Zig-Zag-Strukturen ausgebildet, die durch Brücken verbunden sind. Die Brücken können sich beim Strecken der Zig-Zag-Strukturen verformen bzw. abflachen und ermöglichen so eine tangentenähnliche Biegelinie des Stents.Around Various known functional stents achieve this in known stents Geometric elements combined as wall sections to form a large number of cells, that adjoin each other. The individual wall sections are more specific Way, for example curved or straight, designed to give the stent the desired deformation properties to lend. To enable the stent to expand radially, so-called Zig-Zag structures are formed, which are connected by bridges are. The bridges can deform or flatten when the zig-zag structures are stretched and enable such a tangent-like bend line of the stent.
In
Ein
einzelner Wandabschnitt
Anders
ausgedrückt
ist mit den Wandabschnitten
Die
einzelne Zelle
Derart
gestaltete Stents
Bei bekannten Stents werden die Wände der Zellen zum Teil mit Medikamenten bedeckt, die möglichst gleichmäßig an der Gefäßwand zu verteilen sind. Es wird daher angestrebt, daß die Wände der Zellen sich an der Gefäßwand möglichst gleichmäßig abstützen. Bekannte Stents führen aber zu einer verhältnismäßig ungleichen Bedeckung einer Kanal- bzw. Gefäßwand mit den Wänden der Zellen.In known stents, the walls of the cells are partially covered with medication, which is possible should be distributed as evenly as possible on the vessel wall. It is therefore desirable that the walls of the cells are supported as evenly as possible on the vessel wall. Known stents, however, lead to a relatively uneven covering of a channel or vessel wall with the walls of the cells.
Darüber hinaus besitzen bekannte Stents oft eine noch ungenügende Flexibilität im komprimierten und auch im expandierten Zustand. Die oben genannte axiale Komponente führt bei einem bekannten Stent während des Expandierens zu einer axialen Verkürzung des Stents und zu einem ungleichen Anpreßdruck an die Gefäßwandabschnitte, was unerwünscht ist.Furthermore known stents often have insufficient flexibility in compressed and even in the expanded state. The above axial component leads a known stent during of expansion to an axial shortening of the stent and one unequal contact pressure to the vessel wall sections, which is undesirable is.
Aufgabe der Erfindung ist es, die oben genannten Nachteile zu überwinden und insbesondere einen Stent bereitzustellen, der kostengünstig herzustellen ist und dabei zugleich eine hohe Variabilität bei der Expansion aufweist.task the invention is to overcome the disadvantages mentioned above and in particular to provide a stent that is inexpensive to manufacture is and at the same time has a high variability in the expansion.
Die Erfindung ist mit einem eingangs genannten Stent gelöst, bei dem mindestens zwei in einer Reihe aufeinanderfolgende Zellen bezogen auf die Umfangsrichtung bzw. die azimuthale Richtung des Stents relativ zueinander seitlich, also in Axialrichtung, versetzt angeordnet sind, sowie mit einem Stent, bei dem die einzelnen Schenkel der im wesentlichen V-förmigen Wandabschnitte gekrümmt ausgebildet sind.The Invention is solved with a stent mentioned at the beginning which is related to at least two cells in a row on the circumferential direction or the azimuthal direction of the stent laterally offset relative to each other, i.e. in the axial direction are, as well as with a stent, in which the individual legs of the essentially V-shaped Wall sections are curved are.
Der
erfindungsgemäße Stent,
bei dem mindestens zwei in einer Reihe aufeinanderfolgende Zellen
in Axialrichtung des Stents relativ zueinander seitlich versetzt
angeordnet sind, weist ein erheblich besseres Aufstellverhalten
als herkömmliche
Stents auf. Der Stent expandiert insbesondere gleichmäßiger in radialer
Richtung. Im frei expandierten Zustand weist ein solcher Stent längs seiner
Achse, d.h. bezogen auf
Bei dem erfindungsgemäßen Stent mit zwei im wesentlichen V-förmigen Wandabschnitten, die einander gegenüberliegend angeordnet und an ihren Schenkelenden durch gekrümmte Verbindeungs- bzw. Brückenabschnitte miteinander verbunden sind, erhöhen die gekrümmten Schenkel die Flexibilität des Stents beim Aufstellen und lassen bei Bedarf lokale Deformationen am Stent zu.at the stent according to the invention with two essentially V-shaped ones Wall sections arranged opposite each other and on their thigh ends by curved Connection or bridge sections are interconnected, increase the curved Thigh the flexibility of the Set up stents and leave local deformations if necessary on the stent.
Die Erfindung kann besonders sinnvoll bei ballonexpandierten Stents bevorzugt aus rostfreiem Edelstahl oder Kobalt-Chrom-Tantal-Legierung verwendet werden.The Invention can be particularly useful in balloon-expanded stents preferably made of stainless steel or cobalt-chrome-tantalum alloy be used.
Bei einer vorteilhaften Weiterbildung der Erfindung sind die Zellen einer Reihe zumindest abschnittsweise schraubenförmig angeordnet.at The cells are an advantageous further development of the invention a row arranged at least in sections helically.
Durch Ausbilden einer regelmäßigen Struktur im Stent, mit Reihen, in denen die Zellen helixförmig angeordnet sind, kann darüber hinaus ein insgesamt homogen zu expandierender Stent geschaffen werden.By Develop a regular structure in the stent, with rows in which the cells are arranged helically about that In addition, an overall homogeneous stent can be created.
Die einzelnen Zellen des erfindungsgemäßen Stents sind vorteilhaft zumindest abschnittsweise im wesentlichen punktsymmetrisch ausgebildet und die Symmetriezentren von in einer Reihe aufeinanderfolgenden Zellen im wesentlichen auf einer Helix bzw. azimuthal zueinander versetzt angeordnet.The individual cells of the stent according to the invention are advantageous at least in sections essentially point symmetrical and the centers of symmetry of cells in a row essentially offset from each other on a helix or azimuthal arranged.
Alternativ können die einzelnen Zellen zumindest abschnittsweise im wesentlichen achsensymmetrisch ausgebildet sein und die Symmetrieachsen von in einer Reihe aufeinanderfolgenden Zellen im wesentlichen eine Helix bilden bzw. zueinander azimuthal versetzt sind.alternative can the individual cells, at least in sections, essentially axisymmetric be formed and the axes of symmetry in a row successive Cells essentially form a helix or azimuthal to each other are offset.
Um den seitlichen bzw. azimuthalen Versatz von mindestens zwei in einer Reihe aufeinanderfolgenden Zellen bezogen auf die Axialrichtung des Stents relativ zueinander zu erzeugen, sind vorteilhaft die einzelnen Zellen aus zwei gegenüberliegenden im wesentlichen V-förmigen Wandabschnitten ausgebildet, deren Schenkelenden durch gekrümmte Brückenabschnitte miteinander verbunden sind, wobei die einzelnen Schenkel der im wesentlichen V-förmigen Wandabschnitte verschieden lang ausgebildet sind.Around the lateral or azimuthal offset of at least two in one Row of successive cells related to the axial direction to produce the stent relative to one another are advantageous individual cells from two opposite essentially V-shaped Wall sections formed, the leg ends by curved bridge sections are interconnected, the individual legs of the in essential V-shaped Wall sections are of different lengths.
Eine gleichmäßige Expansion des erfindungsgemäßen Stents ist ferner vorteilhaft dadurch zu erreichen, daß einer der Schenkel im wesentlichen konkav und der bezogen auf den angrenzenden Brückenabschnitt gegenüberliegende Schenkel im wesentlichen konvex ausgebildet ist.A uniform expansion of the stent according to the invention is also advantageous to achieve in that one of the legs essentially concave and the opposite in relation to the adjacent bridge section Leg is essentially convex.
Alternativ ist vorteilhaft einer der Schenkel im wesentlichen konkav und der bezogen auf den angrenzenden Brückenabschnitt gegenüberliegende Schenkel ebenfalls im wesentlichen konkav ausgebildet.alternative is advantageously one of the legs substantially concave and the related to the adjacent bridge section opposite legs also essentially concave.
Das Expansionsverhalten kann weiter verbessert werden, indem die Brückenabschnitte in der Mantelfläche des Stents betrachtet tropfenförmig ausgebildet sind.The Expansion behavior can be further improved by the bridge sections in the lateral surface of the stent considered drop-shaped are.
Darüber hinaus ist es vorteilhaft, wenn die Brückenabschnitte in der Mantelfläche des Stents betrachtet im wesentlichen Ω-förmig ausgebildet sind.Furthermore it is advantageous if the bridge sections in the lateral surface considered the stent are essentially Ω-shaped.
Nachfolgend werden Ausführungsbeispiele eines erfindungsgemäßen Stents anhand der beigefügten schematischen Zeichnungen näher erläutert. Es zeigen:The following are exemplary embodiments of a stent according to the invention with reference to the accompanying schematic drawings. Show it:
In
Die
einzelnen Zellen
Die
Enden der Schenkel
Bevorzugt
erstreckt sich der Brückenabschnitt
In
Die
Schenkel
Zwischen
den Enden der Schenkel sind bei der Ausführungsform gemäß
Die
Wandquerschnitte der Brückenabschnitte
Die
oben beschriebenen Stents
Bei
dem Stent
Die
Stents
- 1010
- Stent gemäß dem Stand der Technikstent according to the status of the technique
- 1212
- erste Zellefirst cell
- 12'12 '
- zweite Zellesecond cell
- 1414
- gerader Wandabschnittstraight wall section
- 1616
- konkaver Wandabschnittconcave wall section
- 1818
- Wandabschnitt bzw. Brückewall section or bridge
- 2020
- konkaver Wandabschnittconcave wall section
- 2222
- konvexer Wandabschnittconvex wall section
- 2424
- Knotenpunktjunction
- 2626
- Stent gemäß der Erfindungstent according to the invention
- 2828
- erste Zellefirst cell
- 3030
- zweite Zellesecond cell
- 3232
- Reihenstring
- 3434
- Umfangsrichtungcircumferentially
- 3636
- Schenkelleg
- 38, 38'38 38 '
- Brückenabschnittbridge section
- 38A, 38'A38A, 38'a
- Halsbereich neck
- 38B, 38'B38B, 38'b
- Kopfbereichhead area
- 3939
- Verbindungsbereichconnecting area
- AA
-
Erstreckungsbereich
in Axialrichtung des Brückenbereichs
38' Extension area in the axial direction of the bridge area38 '
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003123475 DE10323475A1 (en) | 2003-05-23 | 2003-05-23 | Medical stent implant has numerous adjacent cells laterally transposed rows |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003123475 DE10323475A1 (en) | 2003-05-23 | 2003-05-23 | Medical stent implant has numerous adjacent cells laterally transposed rows |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10323475A1 true DE10323475A1 (en) | 2004-12-30 |
Family
ID=33482120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003123475 Withdrawn DE10323475A1 (en) | 2003-05-23 | 2003-05-23 | Medical stent implant has numerous adjacent cells laterally transposed rows |
Country Status (1)
Country | Link |
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DE (1) | DE10323475A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1629861A1 (en) * | 2003-06-02 | 2006-03-01 | Nipro Corporation | Soft stent with excellent follow-up capability to blood vessel |
EP1844740A1 (en) | 2006-04-11 | 2007-10-17 | Admedes Schuessler GmbH | Self-expanding stent with spring structure |
US8425589B2 (en) | 2005-04-27 | 2013-04-23 | Admedes Schuessler Gmbh | Mechanical locking of an X-ray marker in the eyelet of a stent or in another bodily implant |
US8475519B2 (en) | 2005-08-18 | 2013-07-02 | Admedes Schuessler Gmbh | X-ray visibility and corrosion resistance of niti stents using markers made of sandwich material |
US8834559B2 (en) | 2005-03-23 | 2014-09-16 | Admedes Schuessler Gmbh | Stent |
-
2003
- 2003-05-23 DE DE2003123475 patent/DE10323475A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1629861A1 (en) * | 2003-06-02 | 2006-03-01 | Nipro Corporation | Soft stent with excellent follow-up capability to blood vessel |
EP1629861A4 (en) * | 2003-06-02 | 2011-05-11 | Nipro Corp | Soft stent with excellent follow-up capability to blood vessel |
US8834559B2 (en) | 2005-03-23 | 2014-09-16 | Admedes Schuessler Gmbh | Stent |
US8425589B2 (en) | 2005-04-27 | 2013-04-23 | Admedes Schuessler Gmbh | Mechanical locking of an X-ray marker in the eyelet of a stent or in another bodily implant |
US8475519B2 (en) | 2005-08-18 | 2013-07-02 | Admedes Schuessler Gmbh | X-ray visibility and corrosion resistance of niti stents using markers made of sandwich material |
EP1844740A1 (en) | 2006-04-11 | 2007-10-17 | Admedes Schuessler GmbH | Self-expanding stent with spring structure |
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