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1. (WO1991017789) BIOABSORBABLE STENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017789 International Application No.: PCT/US1991/003454
Publication Date: 28.11.1991 International Filing Date: 17.05.1991
Chapter 2 Demand Filed: 17.12.1991
IPC:
A61F 2/82 (2013.01) ,A61F 2/90 (2013.01) ,A61F 2/92 (2013.01) ,A61F 2/958 (2013.01) ,A61L 31/14 (2006.01) ,A61F 2/00 (2006.01) ,A61F 2/02 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
2
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
82
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
2
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
82
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
86
Stents in a form characterised by wire-like elements; Stents in a form characterised by a net-like or mesh-like structure
90
characterised by a net-like or mesh-like structure
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
2
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
82
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
92
Stents in the form of a rolled-up sheet expanding after insertion into the vessel
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
2
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
95
Instruments specially adapted for placement or removal of stents or stent-grafts
958
Inflatable balloons for placing stents or stent-grafts
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31
Materials for other surgical articles
14
Materials characterised by their function or physical properties
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
2
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
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
2
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
02
Prostheses implantable into the body
Applicants:
STACK, Richard, S. [US/US]; US
CLARK, Howard, G., III [US/US]; US
WALKER, William, F. [US/US]; US
Inventors:
STACK, Richard, S.; US
CLARK, Howard, G., III; US
WALKER, William, F.; US
Agent:
WEST, William, K., Jr., ; Cushman, Darby & Cushman Ninth Floor 1100 New York Avenue, N.W. Washington, DC 20005-3918, US
Priority Data:
524,88418.05.1990US
658,70821.02.1991US
Title (EN) BIOABSORBABLE STENT
(FR) STENT BIOABSORBABLE
Abstract:
(EN) A bioabsorbable stent (10, 50, 80, 90) for placement at the locus of a stenotic portion of a body passage, such as a blood vessel, which is flexible and compliant for safe and effective delivery to the site of the stenotic portion of, for example, a blood vessel, so as to avoid the disadvantages of chronic implantation, such as arterial rupture or aneurism formation while exposed to the continuous stresses of a beating heart. The stent is formed from a bioabsorbable material and is porous or has apertures defined there through to facilitate tissue ingrowth and encapsulation of the stent. The stent is encapsulated and biodegrades or bioabsorbs within a period of days, weeks or months as desired following encapsulation to thereby minimize the likelihood of embolization or other risks of the dissolved material and to avoid the disavantages of chronic implantation.
(FR) L'invention se rapporte à un stent bioabsorbable (10, 50, 80, 90), qui est conçu pour être placé à l'endroit d'une sténose d'un conduit du corps, tel qu'un vaisseau sanguin, et qui est souple et élastique pour pouvoir être acheminé de façon sûre et efficace sur le site de la sténose, par exemple d'un vaisseau sanguin, de façon à éviter les désavantages d'une implantation chronique, telle que ruptures artérielles ou formations d'anévrismes, pendant son exposition aux tensions continues des battements du coeur. Ce stent est formé à partir d'une substance bioabsorbable et il est poreux et traversé de part en part d'ouvertures, en vue de faciliter la croissance tissulaire et l'encapsulation du stent. Le stent subit une encapsulation puis une biodégradation ou bioabsorption en une période, après l'encapsulation, fixée en jours, en semaines ou en mois, selon les besoins, afin de réduire au minimum les risques d'embolisation ou autres de la substance dissoute et afin d'éviter les désavantages d'une implantation chronique.
Designated States: AU, CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0528993CA2083157AU1991080018