METHOD OF IMPLANT MATERIAL PRODUCTION ON BASIS OF PORED POLYTETRAFLUORETHYLENE AND MATERIAL PRODUCED BY THIS METHOD Russian patent published in 2008 - IPC A61L27/06 A61L27/14 A61L27/56 

FIELD: medicine.

SUBSTANCE: described method of implant material production on basis of pored polytetrafluorethylene includes processing of base surface which serves as a substrate, deposition of surface layer modified with alloying elements onto processed substrate by magnetron deposition of one of targets selected from the following metals: titanium, zirconium, hafnium, niobium, tantalum, mainly titanium, carbides of mentioned metals, mainly titanium carbide of TiC_0.5; compound ceramic materials from the following group: TiC_0.5+10 mass.% CaO; TiC_0.5+10 mass.% CaO+2 mass.% KMnO₄; TiC_0.5+10 mass.% ZrO₂; TiC_0.5+10 mass.% hydroxyapatite (Ca₁₀(PO₄)₆(OH)₂, deposition of one of mention targets at that is carried out at pressure 1-2x10^-1 Pa, at substrate temperature between 150-170°C, in argon or argon and nitrogen medium at nitrogen partial pressure 14%. Implant material includes base of polytetrafluorethylene of porosity 3.0-40.0%, and surface layer of thickness not less than 50 nm modified with alloying elements composing mentioned targets. Surface layer at deposition of metal target in argon medium contains mentioned metal as alloying element mainly titanium. Surface layer at deposition of metal carbide in argon and nitrogen medium contains Ti-C-N as alloying elements. Surface layer at deposition of ceramic target TiC_0.5+10 mass.% CaO in argon and nitrogen medium contains Ti-Ca-C-O-N as alloying elements. Surface layer at deposition of ceramic target TiC_0.5+10 mass.% CaO+2 mass.% KMpO₄ in argon and nitrogen medium contains Ti-Ca-Mn-K-C-0-N as alloying elements. Surface layer at deposition of ceramic target TiC_0.5+10 mass.% ZrO₂ in argon and nitrogen medium contains Ti-Zr-C-O-N as alloying elements. Surface layer at deposition of ceramic target TiC_0.5+10 mass.% (Ca₁₀(PO₄)₆(OH)₂, in argon and nitrogen medium contains Ti-Ca-P-C-O-N as alloying elements.

EFFECT: method of implant materials production as a substrate for hybrid implants characterized by improved physicochemical, biomechanical properties and enhanced biological activity to biotissues.

10 cl, 1 dwg