A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 27/00 (2006.01) A61K 6/02 (2006.01) A61L 27/32 (2006.01) C25D 9/04 (2006.01) A61F 2/00 (2006.01)
Patent
CA 2187512
The invention concerns a process for producing a gradient coating of calcium phosphate phases and metal oxide phases on metallic implants, in particular made of titanium or titanium alloys, for use as dental, jaw or joint implants. A solution containing calcium ions and phos-phate ions is used as an electrolyte the pH value of which is slightly acidic to approximately neutral. The substrate electrodes are alternately polarized to be cathodic or anodic. The depos-ited layer forms a gradient coating, which is strongly adherent, has a fine structure and is dis-tinguished for its high degree of biocompatibility.
L'invention concerne un procédé pour produire un revêtement à gradiants constitué de phases de phosphate de calcium et de phases d'oxyde métallique sur des implants métalliques, notamment en titane ou en alliages de titane, pour des utilisations comme implants dentaires, maxillaires ou articulaires. Une solution contenant des ions calcium et des ions phosphate est utilisée comme électrolyte, le pH de cette solution étant légèrement acide à approximativement neutre. Les électrodes du substrat présentent une polarisation alternée cathodique et anodique. La couche déposée par gradients est adhésive, présente une structure fine et se distingue par une biocompatibilité élevée.
Bersch Henrike
Hofinger Jurgen
Kranz Curt
Pompe Wolfgang
Scharnweber Dieter
Biomet Merck Gmbh
Kirby Eades Gale Baker
Technische Universitat Dresden
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