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1. WO2009004444 - A PROCESS FOR REALISING BIOLOGICALLY- COMPATIBLE THREE- DIMENSIONAL ELEMENTS

Publication Number WO/2009/004444
Publication Date 08.01.2009
International Application No. PCT/IB2008/001686
International Filing Date 27.06.2008
Chapter 2 Demand Filed 18.09.2009
IPC
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
10
Sintering only
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
7
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
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
30
Joints
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
27
Materials for prostheses or for coating prostheses
50
Materials characterised by their function or physical properties
56
Porous or cellular materials
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
30
Joints
32
for the hip
34
Acetabular cups
B22F 3/10 (2006.01)
B22F 7/00 (2006.01)
A61F 2/30 (2006.01)
A61L 27/56 (2006.01)
A61F 2/34 (2006.01)
CPC
A61F 2/30771
A61F 2/3094
A61F 2/34
A61F 2002/30011
A61F 2002/30044
A61F 2002/30052
Applicants
  • K4SINT S.R.L. [IT/IT]; Viale Dante, 78 I-38057 Pergine Valsugana (TN), IT (AllExceptUS)
  • CASARI, Francesco [IT/IT]; IT (UsOnly)
  • GIRARDINI, Luca [IT/IT]; IT (UsOnly)
  • MOLINARI, Alberto [IT/IT]; IT (UsOnly)
  • ZADRA, Mario [IT/IT]; IT (UsOnly)
Inventors
  • CASARI, Francesco; IT
  • GIRARDINI, Luca; IT
  • MOLINARI, Alberto; IT
  • ZADRA, Mario; IT
Agents
  • BRUNACCI, Marco; APTA SRL Via Giardini, 625 I-41100 Modena, IT
Priority Data
MO2007A00022304.07.2007IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) A PROCESS FOR REALISING BIOLOGICALLY- COMPATIBLE THREE- DIMENSIONAL ELEMENTS
(FR) PROCÉDÉ PERMETTANT LA RÉALISATION D'ÉLÉMENTS TRIDIMENSIONNELS BIOLOGIQUEMENT COMPATIBLES
Abstract
(EN)
The process for realising biologically-compatible three- dimensional elements comprises sintering in forming means (6) and at a sintering temperature (T1), by passing an electrical current and applying a pressure, a volume (11) of forming material, obtaining formed concave and/or convex elements (1). Before said sintering operation, a granular material (12) is added to said volume (11) of forming material, which granular material (12) is removable from said formed concave and/or convex elements (1), having a melting temperature (T2) which is higher than said sintering temperature (T1); in this way pores (5) are obtained.
(FR)
La présente invention concerne un procédé permettant la réalisation d'éléments tridimensionnels biologiquement compatibles comprenant le frittage dans des moyens de formage (6) et à une température de frittage (T1), par la circulation d'un courant électrique et l'application d'une pression, d'un volume (11) de matériau de formage, permettant d'obtenir des éléments concaves et/ou convexes formés (1). Préalablement à ladite opération de frittage, un matériau granulé (12) est ajouté au dit volume (11) de matériau de formage, ledit matériau granulé (12) étant apte à être éliminé desdits éléments concaves et/ou convexes formés (1), ayant une température de fusion (T2) supérieure à ladite température de frittage (T1), permettant ainsi l'obtention de pores (5).
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