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1. WO2002000273 - FLARED CORONARY ARTERY BYPASS GRAFTS

Publication Number WO/2002/000273
Publication Date 03.01.2002
International Application No. PCT/US2001/020262
International Filing Date 26.06.2001
Chapter 2 Demand Filed 25.01.2002
IPC
A61F 2/06 2013.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
04Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
06Blood vessels
A61L 27/40 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
40Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material
A61L 27/50 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
50Materials characterised by their function or physical properties
CPC
A61F 2/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
04Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
06Blood vessels
A61L 27/40
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for ; grafts or; prostheses or for coating ; grafts or; prostheses
40Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
A61L 27/507
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for ; grafts or; prostheses or for coating ; grafts or; prostheses
50Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
507for artificial blood vessels
C08L 75/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
75Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
Applicants
  • THORATEC CORPORATION [US]/[US]
Inventors
  • FARRAR, David, J.
Agents
  • ARPIN, James, B.
  • PATRY, Didier, M.
Priority Data
09/604,11426.06.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) FLARED CORONARY ARTERY BYPASS GRAFTS
(FR) GREFFES DE PONTAGE D'ARTERE CORONAIRE
Abstract
(EN) A bypass graft includes a tubular portion having an internal tubular diameter and a first end and a second end. The tubular portion has a central axis. A flared portion has an adjoining end, wherein the adjoining end of the flared portion is integrally formed on and is substantially concentric with the second end of the tubular portion, and a flared end, wherein the flared end has a flared end internal diameter, such that the internal flared end diameter is greater than the internal tubular diameter. The flared portion includes a circumferential skirt for surgical attachment of the graft to a patient's blood vessel. A method for manufacturing a bypass graft, includes the steps of providing a mandrel having a tubular portion and a flared end with a flared end central axis; forming a layer of polyurethane on the mandrel; drying the layer of polyurethane on the mandrel; forming a skirt edge around the flared end of the mandrel to form an opening at a predetermined angle to the flared end central axis; forming a second edge around the tubular portion of the mandrel, and removing the graft from the mandrel.
(FR) Cette greffe de pontage comprend une portion tubulaire possédant un diamètre tubulaire intérieur, ainsi qu'une première et une seconde extrémité. La portion tubulaire comporte un axe central. Une portion évasée comprend une extrémité adjacente caractérisée en ce qu'elle est formée de manière solidaire sur la seconde extrémité de la portion tubulaire et en ce qu'elle est sensiblement concentrique avec cette seconde extrémité, ainsi qu'une extrémité évasée dont le diamètre intérieur est conçu pour être plus grand que le diamètre tubulaire intérieur. La portion évasée comporte une jupe circonférencielle destinée à la fixation chirurgicale de la greffe sur un vaisseau sanguin d'un patient. Un procédé de fabrication d'une greffe de pontage comprend les étapes suivantes consistant à préparer un mandrin possédant une portion tubulaire ainsi qu'une extrémité évasée dotée d'un axe central d'extrémité évasée, à former une couche de polyuréthanne sur le mandrin, à sécher cette couche de polyuréthanne, à former un bord du type jupe autour de l'extrémité évasée du mandrin, afin de former une ouverture au niveau d'un angle déterminé avec l'axe central, à former un second bord autour de la portion tubulaire du mandrin, et à enlever la greffe du mandrin.
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