THIN PROTECTIVE FILM OF BONE IMPLANT

• Main Authors: KSENEVICH, EVGENY, ANTONOVICH, DOSTA, ANATOLY, DMITRIEVICH, SAVICH, VADIM, VICTOROVICH
• Format: Patent
• Language: English; Russian
• Published: 24.06.1999
• Edition: 6
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL

1. A thin protective film of a lamellar structure, comprising a non-porous titanium phase, adjoining the base, a bioactive phase and an intermediate phase, consisting of a mixture of the materials comprising said titanium phase and said bioactive phase, characterized in that said bioactive phase contains substantially titanium oxides of different stoichiometric composition, for example TiO2, TiO, Ti2O3, the surface of the base has an excessive amount of active atoms, wherein the concentration of titanium oxides in said intermediate phase increases from said titanium phase to said bioactive phase, and between titanium oxides are additionally arranged aluminum and zirconium oxides, the concentration of which decreases from said titanium phase to said bioactive phase. 2. The film of Claim 1, characterized in that said titanium phase is made of titanium, of at least 99.999 purity and the thickness within 0.02-1.0 mkm. 3. The film of any preceding Claims, characterized in that the concentration of titanium oxides in said intermediate phase increases from said titanium phase to said bioactive phase exponentially near said titanium phase and according to the logarithm law near said bioactive phase. 4. The film of any preceding Claims, characterized in that the content of aluminum and zirconium oxides in said intermediate phase not exceed 2-7%, and their concentration decreases from said titanium phase to said bioactive phase according to the normal law. 5. The film of any preceding Claims, characterized in that said bioactive phase is 0.8-1.1 mkm thick, the concentration of said titanium phase is within 93-97%, and an integral thickness of the coating is within 1.0-3.0 mkm. 6. The film of any preceding Claims, characterized in that said titanium phase and said bioactive phase are made continuous and non-porous along all the surface of the base, independently of the micro or macro relief of the base. 7. The film of any preceding Claims, characterized in that, said bioactive phase contains essentially titanium oxides, rutile type, of TIO2 composition. 8. The film of Claim 1, characterized in that said film comprises said bioactive phase, free of nitpogen, hydrogen, carbon and the compounds thereof with other elements.