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1. WO2014159747 - ELECTROPOLISHING OF COBALT-BASED ALLOYS CONTAINING PLATINUM

Publication Number WO/2014/159747
Publication Date 02.10.2014
International Application No. PCT/US2014/024971
International Filing Date 12.03.2014
IPC
C25F 3/16 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
FPROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
3Electrolytic etching or polishing
16Polishing
A61L 31/02 2006.01
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
31Materials for other surgical articles
02Inorganic materials
C22C 19/07 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
07based on cobalt
CPC
A61F 2/82
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
82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A61L 31/022
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
31Materials for other surgical articles ; , e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
02Inorganic materials
022Metals or alloys
A61L 31/14
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
31Materials for other surgical articles ; , e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
14Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
A61L 31/18
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
31Materials for other surgical articles ; , e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
14Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
18Materials at least partially X-ray or laser opaque
C25F 3/16
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
FPROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
3Electrolytic etching or polishing
16Polishing
Applicants
  • ABBOTT CARDIOVASCULAR SYSTEMS, INC. [US]/[US]
Inventors
  • WEBLER, William E.
Agents
  • TAYLOR, Paul
Priority Data
13/830,09614.03.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTROPOLISHING OF COBALT-BASED ALLOYS CONTAINING PLATINUM
(FR) ÉLECTROPOLISSAGE D’ALLIAGES À BASE DE COBALT CONTENANT DU PLATINE
Abstract
(EN)
Radiopaque cobalt-based alloys having a smooth electropolished surface with rounded edges and methods for electropolishing such alloys. A cobalt-based alloy includes cobalt, chromium, and one or more radiopaque elements. In one embodiment, examples of radiopaque elements include so-called platinum group metals (i.e., platinum, palladium, ruthenium, rhodium, osmium, or iridium). Group 10 elements (i.e., platinum or palladium) are particularly preferred. Because of the presence of the platinum group metal(s), such alloys are generally difficult to electropolish. Electrolyte formulations and methods for electropolishing such alloys are also disclosed.
(FR)
La présente invention concerne des alliages à base de cobalt radio-opaques ayant une surface électropolie lisse avec des bords arrondis et des procédés pour l’électropolissage de tels alliages. Un alliage à base de cobalt comprend du cobalt, du chrome, et un ou plusieurs éléments radio-opaques. Dans un mode de réalisation, des exemples d’éléments radio-opaques comprennent des métaux dits du groupe du platine (c’est-à-dire, le platine, le palladium, le ruthénium, le rhodium, l’osmium, ou l’iridium). Des éléments du groupe 10 (c’est-à-dire, le platine ou le palladium) sont particulièrement préférés. En raison de la présence de métal/métaux du groupe du platine, de tels alliages sont généralement difficiles à électropolir. La présente invention concerne en outre des formulations d’électrolyte et des procédés pour l’électropolissage de tels alliages.
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