FR2750035A1 - Endoprosthesis for maintaining artery open after dilation - Google Patents

Endoprosthesis for maintaining artery open after dilation Download PDF

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Publication number
FR2750035A1
FR2750035A1 FR9607901A FR9607901A FR2750035A1 FR 2750035 A1 FR2750035 A1 FR 2750035A1 FR 9607901 A FR9607901 A FR 9607901A FR 9607901 A FR9607901 A FR 9607901A FR 2750035 A1 FR2750035 A1 FR 2750035A1
Authority
FR
France
Prior art keywords
endoprosthesis
dilation
metal tube
maintaining
balloon
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.)
Pending
Application number
FR9607901A
Other languages
French (fr)
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 FR9607901A priority Critical patent/FR2750035A1/en
Publication of FR2750035A1 publication Critical patent/FR2750035A1/en
Pending 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
    • 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
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/958—Inflatable balloons for placing stents or 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Abstract

The endoprosthesis comprises a body made from a metal tube (4) having an S-shape (1) cut out of its periphery, forming a first segment. A cut-out in the form of an inversed S-shape (2) of the entire periphery of the tube forms the second segment. The endoprosthesis also comprises a radio-opaque joint (3) which joins the two segments. This pattern of shaped cut-outs may be repeated several times to provide the desired length.

Description

ENDOPROTHESE
La présente invention concerne une endoprothése qui maintient la lumière interne d'une artère ou d'une veine ouverte aprés dilatation par ballonnet ou autres techniques d'angioplastie dans lequel est introduit un ballon de dilatation qui va dilater le dispositif et lui permettre de rester en place aprés retrait du ballon.ENDOPROSTHESIS
The present invention relates to a stent which maintains the internal lumen of an artery or vein open after balloon dilation or other angioplasty techniques in which a dilation balloon is introduced which will dilate the device and allow it to remain in place after removal of the ball.

Les endoprothéses existantes sont, courtes, rigides avec une résistance radiale,soit souple, sans résistance radiale et certaines difficiles à voir sous radioscopie et n'ont Qu'un rôle passif.The existing endoprostheses are short, rigid with radial resistance, flexible, without radial resistance and some difficult to see under fluoroscopy and have only a passive role.

La figure 1 représente de profil l'endoprothese selon l'invention qui permet de remédier à ces inconvénients.Figure 1 shows in profile the endoprosthesis according to the invention which overcomes these drawbacks.

La figure 2 représente en coupe, une variante de cette endoprothése. Figure 2 shows in section, a variant of this endoprosthesis.

En référence à ces dessins, le dispositif comporte en effet selon une premiére caractéristique, une découpe en forme de S (1) qui forme le premier segment, sur tout le pourtour suivi d'un S inverser Z (2) qui forme le deuxième segment, relies entre eux par une articulation radiopaque(3) décalée d'un pas à chaque segment et d'un repére opaque à chaque extrémité ce qui lui donne souplesse et visibilité. -
La deuxième caractéristique, est qu'elle est découpée dans un tube métallique monobloc qui lui donne une résistance radiale.With reference to these drawings, the device indeed comprises, according to a first characteristic, an S-shaped cutout (1) which forms the first segment, around the entire periphery followed by an S reverse Z (2) which forms the second segment , linked together by a radiopaque articulation (3) offset by one step at each segment and an opaque marker at each end which gives it flexibility and visibility. -
The second characteristic is that it is cut from a single piece metal tube which gives it radial resistance.

La troisième caractéristique, est qu'elle peut etre recouverte d'une substance médicamenteuse qui lui donnerait un rôle actif.
La quatriéme caractéristique, est sa longueur qui est découpée d'un ou plusieurs segments par le praticien.The third characteristic is that it can be covered with a drug substance which would give it an active role.
The fourth characteristic is its length which is cut from one or more segments by the practitioner.

La découpe répétée ainsi plusieurs fois permet de donner à l'endoprothése une longueur voulue pour s'adapter exactement à ou aux plaques atéromateuses dans une même artère d'un patient
A titre d'exemple non limitatif, cette endoprothése aura des dimentions de l'ordre de 1,1mu de diamètre et de 44mm pour la longueur.The repeated cutting thus several times makes it possible to give the endoprosthesis a length desired to adapt exactly to or atheromatous plates in the same artery of a patient
By way of nonlimiting example, this endoprosthesis will have dimensions of the order of 1.1 mu in diameter and 44 mm for the length.

Le dispositif selon l'invention est particulièrement destiné à un usage médical.The device according to the invention is particularly intended for medical use.

La réalisation de cette endoprothése peut être réalisée par découpe laser, acide, ou emboutissage. The production of this endoprosthesis can be carried out by laser cutting, acid, or stamping.

Claims (5)

REVENDICATIONS 1)Dispositif pour maintenir la lumière d'une artère,d'une veine ouverte après dilatation par ballonnet ou autres techniques d'angioplastie au cours desquelles est introduit un ballon de dilatation qui va dilater le dispositif et lui permettre de rester en place après retrait du ballon, dispositif caractérisé en ce que le corps du dispositif est constitué d'ùn tube métallique(4) présentant une découpe en forme de S (1) sur tout le pourtour du tube métallique qui forme le premier segment et une découpe en forme de S inversé Z (2) sur tout le pourtour du même tube métallique qui forme le deuxième seament. 1) Device for maintaining the lumen of an artery, of an open vein after dilation by balloon or other angioplasty techniques during which a dilation balloon is introduced which will dilate the device and allow it to remain in place after removal of the balloon, device characterized in that the body of the device consists of a metal tube (4) having an S-shaped cutout (1) around the entire circumference of the metal tube which forms the first segment and a cutout in the form of S inverted Z (2) all around the same metal tube which forms the second seament. 2)Dispositif selon la revendication 1 caractérisé en ce qu'il comporte une articulation radiopaque(3) reliant les dits premier et deuxième segments.2) Device according to claim 1 characterized in that it comprises a radiopaque articulation (3) connecting the said first and second segments. 3)Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que la découpe est répétée plusieurs fois pour lui donner une longueur voulue.3) Device according to any one of the preceding claims, characterized in that the cutting is repeated several times to give it a desired length. 4)Dispositif selon l'une des revendications précédentes caractérisé en ce qu'il comporte deux repérés radiopaque à chaque extrémité.4) Device according to one of the preceding claims characterized in that it comprises two radiopaque markings at each end. 5)Dispositif selon l'une des revendications précédentes caractérisé en ce que le tube métallique est recouvert d'une substance médicamenteuse pour lui donner un rôle actif. 5) Device according to one of the preceding claims characterized in that the metal tube is covered with a drug substance to give it an active role.
FR9607901A 1996-06-20 1996-06-20 Endoprosthesis for maintaining artery open after dilation Pending FR2750035A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9607901A FR2750035A1 (en) 1996-06-20 1996-06-20 Endoprosthesis for maintaining artery open after dilation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9607901A FR2750035A1 (en) 1996-06-20 1996-06-20 Endoprosthesis for maintaining artery open after dilation

Publications (1)

Publication Number Publication Date
FR2750035A1 true FR2750035A1 (en) 1997-12-26

Family

ID=9493402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9607901A Pending FR2750035A1 (en) 1996-06-20 1996-06-20 Endoprosthesis for maintaining artery open after dilation

Country Status (1)

Country Link
FR (1) FR2750035A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421729A2 (en) * 1989-10-02 1991-04-10 Medtronic, Inc. Articulated stent
EP0540290A2 (en) * 1991-10-28 1993-05-05 Advanced Cardiovascular Systems, Inc. Expandable stents and method for making same
EP0623354A1 (en) * 1993-04-26 1994-11-09 Medtronic, Inc. Intravascular stents
WO1995003010A1 (en) * 1993-07-23 1995-02-02 Cook Incorporated A flexible stent having a pattern formed from a sheet of material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421729A2 (en) * 1989-10-02 1991-04-10 Medtronic, Inc. Articulated stent
EP0540290A2 (en) * 1991-10-28 1993-05-05 Advanced Cardiovascular Systems, Inc. Expandable stents and method for making same
EP0623354A1 (en) * 1993-04-26 1994-11-09 Medtronic, Inc. Intravascular stents
WO1995003010A1 (en) * 1993-07-23 1995-02-02 Cook Incorporated A flexible stent having a pattern formed from a sheet of material

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