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DE19928486A1 - Join for vessel ends of vascular prosthesis incorporates stent expandable by balloon catheter - Google Patents

Join for vessel ends of vascular prosthesis incorporates stent expandable by balloon catheter

Info

Publication number
DE19928486A1
DE19928486A1 DE19928486A DE19928486A DE19928486A1 DE 19928486 A1 DE19928486 A1 DE 19928486A1 DE 19928486 A DE19928486 A DE 19928486A DE 19928486 A DE19928486 A DE 19928486A DE 19928486 A1 DE19928486 A1 DE 19928486A1
Authority
DE
Germany
Prior art keywords
vascular prosthesis
stent
vessel
balloon catheter
vascular
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.)
Ceased
Application number
DE19928486A
Other languages
German (de)
Inventor
Lars Sunnanvaeder
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.)
Maquet Cardiopulmonary GmbH
Original Assignee
Jostra AG
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 Jostra AG filed Critical Jostra AG
Priority to DE19928486A priority Critical patent/DE19928486A1/en
Publication of DE19928486A1 publication Critical patent/DE19928486A1/en
Ceased 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
    • 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
    • A61F2/02—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
    • A61F2002/065—Y-shaped blood vessels
    • A61F2002/067—Y-shaped blood vessels modular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/826—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents more than one stent being applied sequentially
    • 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
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
    • 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
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped

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)

Abstract

At least one radially expandable stent (13) is inserted into the vascular prosthesis (10) and which, when expanded, presses the vascular prosthesis into the inner walls of the two vessel ends (11,12) being joined. The at least one stent is expanded by a balloon catheter. The ends of the at least one stent protrude beyond the ends of the vascular prosthesis. The outside of the stent is barbed.

Description

Herkömmlicherweise näht man die Enden von Gefäßprothesen mit den Enden der natürlichen Gefäße zusammen. An stark skleroti­ schen oder durch Verkalkung geschädigten Blutgefäßen kann je­ doch die Befestigung durch herkömmliches Nähen problematisch sein. Die Fadenlöcher können ausreißen oder sich unzulässig vergrößern, wodurch Blutungen entstehen können.Conventionally, the ends of vascular prostheses are also sewn the ends of the natural vessels together. With severe sclerotism blood vessels or damaged by calcification can but the attachment by conventional sewing is problematic his. The thread holes can tear out or become impermissible enlarge, which can cause bleeding.

Die Erfindung hat die Aufgabe, eine zum Nähen alternative Mög­ lichkeit zur Befestigung von Gefäßprothesen an natürlichen Gefäßen bereitzustellen, die die Nachteile des Nähens vermei­ det.The object of the invention is to provide an alternative for sewing possibility of attaching vascular prostheses to natural ones Provide vessels that avoid the disadvantages of sewing det.

Die Erfindung löst die gestellte Aufgabe mittels einer Gefäß­ prothese zur Verbindung zweier Gefäßenden, wobei in die Gefäß­ prothese mindestens ein radial aufweitbarer Stent einführbar ist, der im aufgeweiteten Zustand die Gefäßprothese in die Innenwände der beiden Gefäßenden eindrückt, die dann im Lauf der Zeit mit der Gefäßprothese verwachsen können. Auf diese Weise muss zukünftig die Gefäßprothese nicht mehr durch Nähen mit dem Ende des natürlichen Gefäßes verbunden werden. Somit können auch sklerotisch oder durch Verkalkung geschädigte Blutgefäße, die beim Nähen zum Ausreißen neigen, problemlos mit einer Gefäßprothese verbunden werden.The invention solves the problem by means of a vessel prosthesis for the connection of two vessel ends, being in the vessel prosthesis insertable at least one radially expandable stent is who in the expanded state the vascular prosthesis in the Presses inside walls of the two ends of the vessel, which are then in the barrel of time with the vascular prosthesis. To this  In future, the vascular prosthesis will no longer have to be sewn be connected to the end of the natural vessel. Consequently can also be sclerotic or damaged by calcification Blood vessels that tend to tear when sewing are no problem be connected with a vascular prosthesis.

Damit die Gefäßprothese optimal gegen die Innenwände der bei­ den Gefäßenden gedrückt wird, kann der mindestens eine Stent mittels eines Ballonkatheters aufgeweitet werden.So that the vascular prosthesis optimally against the inner walls of the the end of the vessel is pressed, the at least one stent be expanded using a balloon catheter.

Um die Verbindung zwischen der Gefäßprothese und den beiden Gefäßenden noch sicherer zu gestalten, können die Enden des mindestens einen Stents über die Enden der Gefäßprothese hin­ ausragen, wodurch die Enden des mindestens einen Stents eben­ falls mit der Gefäßinnenwand in Kontakt gelangen und mit ihr verwachsen können.The connection between the vascular prosthesis and the two To make vessel ends even safer, the ends of the at least one stent over the ends of the vascular prosthesis protrude, making the ends of the at least one stent even if they come into contact with the inner wall of the vessel and with it can grow together.

Vorteilhafterweise kann der Durchmesser der Gefäßprothese wenigstens ungefähr dem Gefäßdurchmesser entsprechen, wobei der Durchmesser der Gefäßprothese vorzugsweise etwas kleiner als der Gefäßdurchmesser sein sollte. Somit kann bei einem etwas größeren Gefäßdurchmesser als der Durchmesser der Gefäß­ prothese diese durch Dilatieren des Stents an den Gefäßdurch­ messer angepasst werden. Sofern es der Zustand der Gefäße erlaubt, werden die mit der Gefäßprothese zu verbindenden Enden vor deren Einbringen mechanisch etwas geweitet.The diameter of the vascular prosthesis can advantageously correspond at least approximately to the vessel diameter, where the diameter of the vascular prosthesis is preferably somewhat smaller than the vessel diameter should be. Thus, with one somewhat larger vessel diameter than the diameter of the vessel prosthesis by dilating the stent to the vessels knife can be adjusted. Unless it is the condition of the vessels allowed to be connected to the vascular prosthesis The ends are mechanically widened before being inserted.

Wenn der Stent auf seiner Außenseite Widerhaken aufweist, ist die Gefahr eines Verrutschens des Stents sowohl in der Gefäß­ prothese als auch an der Innenwand des natürlichen Gefäßes reduziert. Da sich die Widerhaken in die Innenwände der beiden Gefäßenden einhaken, wird außerdem ein Verwachsen des Stents mit dem natürlichen Gefäß begünstigt.If the stent has barbs on its outside, is the risk of the stent slipping both in the vessel prosthesis as well as on the inner wall of the natural vessel reduced. Because the barbs are in the inner walls of the two Hooking the vessel ends will also cause the stent to grow together favored with the natural vessel.

Nachfolgend wird ein Ausführungsbeispiel einer erfindungsgemä­ ßen Gefäßprothese anhand der beiliegenden Zeichnung näher erläutert.An exemplary embodiment of a device according to the invention is described below ß vascular prosthesis with reference to the accompanying drawing explained.

Die einzige Figur zeigt eine Gefäßprothese 10 zur Verbindung zweier Gefäßenden 11 und 12. In die Gefäßprothese 10 sind zwei radial aufweitbare Stents 13 eingeführt. Die beiden radial aufweitbaren Stents 13 können mittels eines hier nicht näher dargestellten Ballonkatheters aufgeweitet werden. Auf diese Weise werden durch Aufblasen des Ballonkatheters sowohl die Gefäßprothese 10 als auch die Stents 13 in die Innenwände der beiden Gefäßenden 11 und 12 eingedrückt. Die Enden der Stents 13 ragen über die Enden der Gefäßprothese 10 hinaus und kontaktieren somit ebenfalls die Innenwände des Gefäßes 11 und 12. Im Laufe der Zeit wachsen daher die Stents 13 und die Gefäßprothese 10 mit den natürlichen Gefäßen 11 und 12 zusam­ men. Auf der Außenseite der Stents 13 können hier nicht näher dargestellte Widerhaken angebracht sein, sodass die Stents 13 nicht so leicht aus der Gefäßprothese 10 herausrutschen können und sich auch gut in die Innenwände der beiden Gefäßenden 11 und 12 einhaken. Der Durchmesser der Gefäßprothese 10 ent­ spricht ungefähr dem Durchmesser der natürlichen Gefäßenden 11 und 12.The single figure shows a vascular prosthesis 10 for connecting two vascular ends 11 and 12 . Two radially expandable stents 13 are inserted into the vascular prosthesis 10 . The two radially expandable stents 13 can be expanded by means of a balloon catheter, not shown here. In this way, both the vascular prosthesis 10 and the stents 13 are pressed into the inner walls of the two vascular ends 11 and 12 by inflating the balloon catheter. The ends of the stents 13 protrude beyond the ends of the vascular prosthesis 10 and thus also contact the inner walls of the vessel 11 and 12 . Over time, the stents 13 and the vascular prosthesis 10 therefore grow together with the natural vessels 11 and 12 . Barbs (not shown in detail here) can be attached to the outside of the stents 13 , so that the stents 13 cannot slide out of the vascular prosthesis 10 so easily and also hook well into the inner walls of the two vessel ends 11 and 12 . The diameter of the vascular prosthesis 10 corresponds approximately to the diameter of the natural vascular ends 11 and 12 .

Claims (5)

1. Gefäßprothese (10) zur Verbindung zweier Gefäßenden (11, 12), dadurch gekennzeichnet, dass in die Gefäßprothe­ se (10) mindestens ein radial aufweitbarer Stent (13) ein­ führbar ist, der im aufgeweiteten Zustand die Gefäßprothe­ se (10) in die Innenwände der beiden Gefäßenden (11, 12) eindrückt.1. vascular prosthesis ( 10 ) for connecting two vessel ends ( 11 , 12 ), characterized in that in the vascular prosthesis ( 10 ) at least one radially expandable stent ( 13 ) is a feasible, the vascular prosthesis se ( 10 ) in in the expanded state presses the inner walls of the two ends of the vessel ( 11 , 12 ). 2. Gefäßprothese (10) nach Anspruch 1, dadurch gekennzeich­ net, dass der mindestens eine Stent (13) mittels eines Ballonkatheters aufweitbar ist.2. Vascular prosthesis ( 10 ) according to claim 1, characterized in that the at least one stent ( 13 ) can be expanded by means of a balloon catheter. 3. Gefäßprothese (10) nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, dass die Enden des mindestens einen Stents (13) über die Enden der Gefäßprothese (10) hinausragen.3. vascular prosthesis ( 10 ) according to claim 1 or 2, characterized in that the ends of the at least one stent ( 13 ) protrude beyond the ends of the vascular prosthesis ( 10 ). 4. Gefäßprothese (10) nach einem der Ansprüche 1 bis 3, da­ durch gekennzeichnet, dass ihr Durchmesser wenigstens ungefähr dem Gefäßdurchmesser entspricht oder etwas klei­ ner ist.4. Vascular prosthesis ( 10 ) according to one of claims 1 to 3, characterized in that its diameter corresponds at least approximately to the vessel diameter or is somewhat smaller. 5. Gefäßprothese (10) nach einem der Ansprüche 1 bis 4, da­ durch gekennzeichnet, dass der mindestens eine Stent (13) auf seiner Außenseite Widerhaken aufweist.5. Vascular prosthesis ( 10 ) according to one of claims 1 to 4, characterized in that the at least one stent ( 13 ) has barbs on its outside.
DE19928486A 1999-06-22 1999-06-22 Join for vessel ends of vascular prosthesis incorporates stent expandable by balloon catheter Ceased DE19928486A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19928486A DE19928486A1 (en) 1999-06-22 1999-06-22 Join for vessel ends of vascular prosthesis incorporates stent expandable by balloon catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19928486A DE19928486A1 (en) 1999-06-22 1999-06-22 Join for vessel ends of vascular prosthesis incorporates stent expandable by balloon catheter

Publications (1)

Publication Number Publication Date
DE19928486A1 true DE19928486A1 (en) 2001-11-29

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Application Number Title Priority Date Filing Date
DE19928486A Ceased DE19928486A1 (en) 1999-06-22 1999-06-22 Join for vessel ends of vascular prosthesis incorporates stent expandable by balloon catheter

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DE (1) DE19928486A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732088A2 (en) * 1995-03-14 1996-09-18 Advanced Cardiovascular Systems, Inc. Expandable stent forming projecting barbs and method for deploying
WO1996028115A1 (en) * 1995-03-10 1996-09-19 Impra, Inc. Endoluminal encapsulated stent and methods of manufacture and endoluminal delivery
WO1997041804A1 (en) * 1996-05-02 1997-11-13 B. Braun Celsa Surgically anastomosable transcutaneous vascular prosthesis and set comprising same
EP0855170A2 (en) * 1997-01-23 1998-07-29 Schneider (Usa) Inc. Stent graft with braided polymeric sleeve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996028115A1 (en) * 1995-03-10 1996-09-19 Impra, Inc. Endoluminal encapsulated stent and methods of manufacture and endoluminal delivery
EP0732088A2 (en) * 1995-03-14 1996-09-18 Advanced Cardiovascular Systems, Inc. Expandable stent forming projecting barbs and method for deploying
WO1997041804A1 (en) * 1996-05-02 1997-11-13 B. Braun Celsa Surgically anastomosable transcutaneous vascular prosthesis and set comprising same
EP0855170A2 (en) * 1997-01-23 1998-07-29 Schneider (Usa) Inc. Stent graft with braided polymeric sleeve

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