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DE9001160U1 - Stent for sealing vessels in the case of arteriovenous fistulas or vascular band bulges in the arterial area (aneurysms) - Google Patents

Stent for sealing vessels in the case of arteriovenous fistulas or vascular band bulges in the arterial area (aneurysms)

Info

Publication number
DE9001160U1
DE9001160U1 DE9001160U DE9001160U DE9001160U1 DE 9001160 U1 DE9001160 U1 DE 9001160U1 DE 9001160 U DE9001160 U DE 9001160U DE 9001160 U DE9001160 U DE 9001160U DE 9001160 U1 DE9001160 U1 DE 9001160U1
Authority
DE
Germany
Prior art keywords
stent
carrier
case
aneurysms
spiral
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
DE9001160U
Other languages
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE9001160U priority Critical patent/DE9001160U1/en
Publication of DE9001160U1 publication Critical patent/DE9001160U1/en
Priority to DE19914102550 priority patent/DE4102550A1/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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/88—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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A61F2002/072—Encapsulated stents, e.g. wire or whole stent embedded in lining

Landscapes

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

Description

Ii IMIIiIMI

BESCHREIBUNGDESCRIPTION

Die Erfindung betrifft ein Stent zur Abdichtung von Gefäßen bei arteriovenösen Fisteln oder Gefäßwandaussackungen im arteriellen Bereich (Aneurysmata).The invention relates to a stent for sealing vessels in the case of arteriovenous fistulas or vascular wall bulges in the arterial region (aneurysms).

Aus der US-PS 4820298 ist ein spiralform!jet Stont bekannt. Dieser bekannte Stent iasteht im wesentlichen aus einem spiralförmigen Kern, wobei äie Zwischenraum., 'wischen zwei Opiia!windungen mit einem elast-.schen Fasp^-Netzwerk überbrückt sind. Dieser bekannte Stent ist dazu ausgelegt, ein unter Umständen lebensbedrohlichcs Aneurysma zu überbrücken. Hierzu weist der Spiralkarn eine hinreichende Formfestigkeit auf, um die Gefäßwände zu stabilisieren. Nach der Implantation kann körpereigenes Gewebe in das erwähnte elastische Netzwerk zwischen den Spiralwindungen einwachsen und so eine Abdichtung der Aussackung bewirken.A spiral-shaped stent is known from US-PS 4820298. This known stent consists essentially of a spiral-shaped core, with the space between two spiral turns being bridged by an elastic fiber network. This known stent is designed to bridge an aneurysm that could potentially be life-threatening. The spiral core has sufficient dimensional stability to stabilize the vessel walls. After implantation, the body's own tissue can grow into the elastic network between the spiral turns and thus seal off the bulge.

Wenn dieser bekannte Stent auch bei einigen Indikationen zufriedenstellende Ergebnisse eines operativen Eingriffs ermöglicht, wird es als nachteilig empfunden, daß eine Abdichtung der überbrückten Gefäßteile erst sekundär durch das Einwachsen von Körpergewebe erzielt wird.Although this known stent enables satisfactory surgical results in some indications, it is considered disadvantageous that sealing of the bridged vessel parts is only achieved secondarily by the ingrowth of body tissue.

Vor dem aufgezeigten Hintergrund ist es nun die Aufgabe der vorliegenden Erfindung, einen Stent der eingangs erwähnten Art so weiterzubilden, daß er nicht nur das Lumen eines Gefäßes aufrecht erhält, sondern auch Aneurysmata oder Fisteln zu verschließen vermag.Against the background outlined, the object of the present invention is to further develop a stent of the type mentioned at the outset in such a way that it not only maintains the lumen of a vessel, but is also able to close aneurysms or fistulas.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1.This problem is solved by the characterizing features of claim 1.

Demnach besteht der Stent erfindungsgemäß aus einem spiralförmigen Träger hoher Verformbarkeit, dessen benachbarte Spiralwindungen durch ein elastisches Material flüsöigkeitsuntäu.ciil".* sig überbrückt sind.Accordingly, the stent according to the invention consists of a spiral-shaped carrier with high deformability, the adjacent spiral turns of which are bridged in a liquid-tight manner by an elastic material.

Die spiralförmige Ausbildung des Trägers verleiht ihm einerseits eine hohe Verformbarkeit, die seine Implantierfähigkeit erst ermöglicht. Andererseits bietet die Spiralform eine genügende Festigkeit, um die Gefäßwände zu stabilisieren. Das benachbarte Spiralwindungen überbrückende Material weist eine hinreichende Elastizität auf, um den notwendigen Bewegungen des Stents beim Implantieren standhalten zu können, ohne zu reißen.The spiral shape of the carrier gives it a high degree of deformability, which makes it possible to implant it. On the other hand, the spiral shape offers sufficient strength to stabilize the vessel walls. The material bridging the adjacent spiral turns has sufficient elasticity to withstand the necessary movements of the stent during implantation without tearing.

Das elastische Material kann als Schlauch ausgebildet sein. In diesem Falle umhüllt es den Träger, eng an dessen Spiralwindungen anliegend, als Einheit flüssigkeitsdicht.The elastic material can be designed as a tube. In this case, it envelops the carrier, tightly fitting to its spiral windings, as a liquid-tight unit.

Der Träger besteht vorteiliiafterweise aus einem körperverträglichen Metall. Alternativ ist aber auch die Verwendung eines körperverträglichen Kunsts'.-.off&egr; möglich.The carrier is preferably made of a metal that is compatible with the body. Alternatively, it is also possible to use a plastic that is compatible with the body.

Als elastisches Material für die Überbrückungen bzw. für den Schlauch eignet sich jedes einschlägige Material. Vorteilhaft ist d^ß Verwendung von Latex.Any suitable elastic material can be used for the bridges or for the hose. The use of latex is advantageous.

Die Erfindung wird kurz anhand eines Ausführungsbeispiels gemäß der einzigen Zeichnung näher erläutert. Der Stent 1 weist einen spiralförmigen Träger 3 auf. Die FormfestigkeitThe invention is briefly explained in more detail using an embodiment according to the single drawing. The stent 1 has a spiral-shaped carrier 3. The dimensional stability

dieser langen Spirale gewährleistet es, daß das Lumen einen mit dem Stent 1 zu versehenden Gefäßes offengehalten wird.This long spiral ensures that the lumen of a vessel to be provided with the stent 1 is kept open.

Der Träger 3 ist liier umhüllt, von einem elastischen Schlauch, der aus einem flüssigkeitsundurchlässigen Material besteht. Der Schlauch liegt eng an dem spiralförmigen Träger 3 an.The carrier 3 is covered on all sides by an elastic tube made of a liquid-impermeable material. The tube fits tightly against the spiral-shaped carrier 3.

Nach der Implantation des Stents in das zu behandelnde Gefäß ti ice sülüi'l eine Abdichtung beispielsweise einer Gefäßwandaussackung ein. Die sofort eintretende Abdichtung ist insbesondere bei der Behandlung von Fisteln erwünscht und notwendig.After the stent has been implanted into the vessel to be treated, it is then sealed, for example, against a vessel wall bulge. The immediate sealing is particularly desirable and necessary when treating fistulas.

Claims (5)

ANSPRUCHEEXPECTATIONS 1. Stent zur Abdichtung von Gefäßen bei arteriovenösen Fisteln oder Gefäßwandaussackungen im arteriellen Bereich, dadurch gekennzeichnet, daß er aus einem spiralförmigen Träger (3) hoher Verformbarkeit besteht, und daß benachbarte Spi&Ggr;3Iv.'indungsn des Trägers (3^ durch sin elastisches Material (2) flüssigkeitsundurchlässig überbrückt sind.1. Stent for sealing vessels in the case of arteriovenous fistulas or vessel wall bulges in the arterial region, characterized in that it consists of a spiral-shaped carrier (3) with high deformability, and that adjacent spirals of the carrier (3) are bridged in a liquid-impermeable manner by an elastic material (2). 2. Stent nach Anspruch 1, dadurch gekennzeichnet, daß das elastische Material (2) in Form eines Schlauches den Träger (3) eng anliegend umhüllt.2. Stent according to claim 1, characterized in that the elastic material (2) in the form of a tube tightly surrounds the carrier (3). 3. Stent nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Träger (3) aus körperverträglichem Metall besteht.3. Stent according to claim 1 or 2, characterized in that the carrier (3) consists of biocompatible metal. 4. Stent nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Träger (3) aus körperverträglichem Kunststoff besteht.4. Stent according to one of claims 1 to 3, characterized in that the carrier (3) consists of body-compatible plastic. 5. Stent nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das elastische Material Latex ist.5. Stent according to one of claims 1 to 4, characterized in that the elastic material is latex.
DE9001160U 1990-02-02 1990-02-02 Stent for sealing vessels in the case of arteriovenous fistulas or vascular band bulges in the arterial area (aneurysms) Expired - Lifetime DE9001160U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9001160U DE9001160U1 (en) 1990-02-02 1990-02-02 Stent for sealing vessels in the case of arteriovenous fistulas or vascular band bulges in the arterial area (aneurysms)
DE19914102550 DE4102550A1 (en) 1990-02-02 1991-01-29 Sealing blood vessel fistula - involves inserted sleeve with spiral support with turns bridged by impervious elastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9001160U DE9001160U1 (en) 1990-02-02 1990-02-02 Stent for sealing vessels in the case of arteriovenous fistulas or vascular band bulges in the arterial area (aneurysms)

Publications (1)

Publication Number Publication Date
DE9001160U1 true DE9001160U1 (en) 1990-04-05

Family

ID=6850601

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9001160U Expired - Lifetime DE9001160U1 (en) 1990-02-02 1990-02-02 Stent for sealing vessels in the case of arteriovenous fistulas or vascular band bulges in the arterial area (aneurysms)

Country Status (1)

Country Link
DE (1) DE9001160U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017636A1 (en) * 1992-03-12 1993-09-16 Laboratoire Perouse Implant Expansible endoprosthesis for human or animal tubular organs and tool for positioning said endoprosthesis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017636A1 (en) * 1992-03-12 1993-09-16 Laboratoire Perouse Implant Expansible endoprosthesis for human or animal tubular organs and tool for positioning said endoprosthesis
FR2688401A1 (en) * 1992-03-12 1993-09-17 Richard Thierry EXPANDABLE STENT FOR HUMAN OR ANIMAL TUBULAR BODY, AND IMPLEMENTATION TOOL.
US5755769A (en) * 1992-03-12 1998-05-26 Laboratoire Perouse Implant Expansible endoprosthesis for a human or animal tubular organ, and fitting tool for use thereof
US6019787A (en) * 1992-03-12 2000-02-01 Laboratoire Perouse Implant Fitting tool for use of an expansible endoprosthesis for a human or animal tubular organ

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