BIODEGRADABLE ALLOYS BASED ON MAGNESIUM-CALCIUM WITH CONTROLLED GADOLINIUM ADDITION (MG-CA-GD)

The invention relates to five biocompatible biodegradable alloys based on magnesium-calcium with controlled gadolinium addition Mg-Ca-Gd, meant for biodegradable implants to be used in the medical field, especially in orthopaedics. According to the invention, the alloys have the following chemical c...

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Bibliographische Detailangaben
Hauptverfasser:	VLAD MARIA-DANIELA, ANTONIAC VASILE-IULIAN, ISTRATE BOGDAN, MUNTEANU CORNELIU, POPESCU OANA-DIANA
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	ALLOYS BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMISTRY DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FERROUS OR NON-FERROUS ALLOYS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	The invention relates to five biocompatible biodegradable alloys based on magnesium-calcium with controlled gadolinium addition Mg-Ca-Gd, meant for biodegradable implants to be used in the medical field, especially in orthopaedics. According to the invention, the alloys have the following chemical compositions, expressed as mass percentage: alloy 1 - 99% Mg, 0.5% Ca and 0.5% Gd; alloy 2 - 98.5% Mg, 0.5% Ca and 1% Gd; alloy 3 - 98% Mg, 0.5% Ca and 1.5% Gd; alloy 4 - 97.5% Mg, 0.5% Ca and 2% Gd; alloy 5 - 96.5% Mg, 0.5% Ca and 3% Gd. Invenţia se referă la cinci aliaje biocompatibile şi biodegradabile pe bază de magneziu - calciu cu un adaos comtrolat de gadoliniu Mg - Ca - Gd, destinate realizării implanturilor biodegradabile utilizate în domeniul medical, cu pondere mare în ortopedie. Aliajele conform invenţiei au următoarele compoziţii chimice exprimate în procente de masă: aliajul 1 - 99%Mg, 0,5% Ca şi 0,5% Gd; aliajul 2 - 98,5%Mg, 0,5% Ca şi 1% Gd; aliajul 3 - 98% Mg, 0,5% Ca şi 1,5% Gd; aliajul 4 - 97,5% Mg, 0,5% Ca şi 2% Gd; aliajul 5 - 96,5% Mg, 0,5% Ca şi 3% Gd.