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1. WO2002021222 - ORTHOPEDIC MIXTURES PREPARED BY SUPERCRITICAL FLUID PROCESSING TECHNIQUES

Publication Number WO/2002/021222
Publication Date 14.03.2002
International Application No. PCT/US2001/026448
International Filing Date 24.08.2001
Chapter 2 Demand Filed 27.03.2002
IPC
A61F 2/00 2006.01
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
A61F 2/28 2006.01
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
28Bones
A61F 2/30 2006.01
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
30Joints
A61L 27/46 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
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
44having a macromolecular matrix
46with phosphorus-containing inorganic fillers
CPC
A61F 2/28
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
28Bones
A61F 2/3094
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
30Joints
3094Designing or manufacturing processes
A61F 2002/30065
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
30Joints
30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
30003Material related properties of the prosthesis or of a coating on the prosthesis
3006Properties of materials and coating materials
30065thermoplastic, i.e. softening or fusing when heated, and hardening and becoming rigid again when cooled
A61F 2210/0071
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
2210Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
0071thermoplastic
A61F 2310/00293
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
2310Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
00005The prosthesis being constructed from a particular material
00179Ceramics or ceramic-like structures
00293containing a phosphorus-containing compound, e.g. apatite
A61L 2430/02
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
2430Materials or treatment for tissue regeneration
02for reconstruction of bones; weight-bearing implants
Applicants
  • FERRO CORPORATION [US]/[US]
Inventors
  • MANDEL, Frederick, S.
  • WANG, J., Don
  • HOWDLE, Steven, M.
  • POPOV, Vladimir, K.
Agents
  • CLARK, Kenneth, A.
Priority Data
09/658,25208.09.2000US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ORTHOPEDIC MIXTURES PREPARED BY SUPERCRITICAL FLUID PROCESSING TECHNIQUES
(FR) MELANGES ORTHOPEDIQUES PREPARES SELON DES TECHNIQUES DE TRAITEMENT PAR FLUIDES SUPERCRITIQUES
Abstract
(EN)
Orthopedic mixtures are prepared by mixing starting materials and a process medium (16) in a reactor (12) to form a supercritical fluid slurry. The starting materials include a source of calcium ions and a polymer matrix for the calcium ions. The process medium (16) preferably is carbon dioxide, which is supplied to the reactor (12) in a supercritical state. After mixing for a period of time, the slurry either is left in the reactor (12) or is discharged into a receiving vessel (14). The process medium (16) is separated from the other materials and removed. Leaving behind a finely divided product. The finely divided product can be used as a bone implant or a bone implant can be carved from the cured product. Alternatively, if an ultraviolet light-curable catalyst and a monomer are included in the mixture, the finely divided product can be used as bone filler and cured in situ. After curing, the mixture produces a dense, strong, porous product that simulates autogenic bone.
(FR)
L'invention concerne des mélanges orthopédiques préparés par mélange de matériaux de départ et d'un milieu de traitement (16) dans un réacteur (12) de manière à former une bouillie de fluide supercritique. Les matériaux de départ comprennent une source d'ions calcium et une matrice polymère destinée aux ions calcium. Le milieu de traitement (16) est, de préférence, du dioxyde de carbone qui est fourni au réacteur (12) à l'état supercritique. Après avoir été mélangée pendant un laps de temps, la bouillie est soit maintenue dans le réacteur (12), soit déversée dans un récipient (14). Le milieu de traitement (16) est séparé des autres matériaux puis il est retiré, laissant derrière lui un produit en particules fines. Ce produit en particules fines peut être utilisé comme greffon osseux, ou encore, un greffon osseux peut être ciselé à partir dudit produit. Dans un autre mode de réalisation, si un catalyseur pouvant être traité par rayonnement ultraviolet et un monomère sont contenus dans le mélange, le produit en particules fines peut être utilisé comme agent de remplissage osseux puis traité in situ. Après traitement, le mélange permet d'obtenir un produit poreux solide et dense simulant un os autogène.
Also published as
Latest bibliographic data on file with the International Bureau