RU2008140044A - METHOD FOR MODIFICATION OF SURFACE OF IMPLANTS FROM TITANIUM AND ITS ALLOYS - Google Patents
METHOD FOR MODIFICATION OF SURFACE OF IMPLANTS FROM TITANIUM AND ITS ALLOYS Download PDFInfo
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- RU2008140044A RU2008140044A RU2008140044/15A RU2008140044A RU2008140044A RU 2008140044 A RU2008140044 A RU 2008140044A RU 2008140044/15 A RU2008140044/15 A RU 2008140044/15A RU 2008140044 A RU2008140044 A RU 2008140044A RU 2008140044 A RU2008140044 A RU 2008140044A
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Abstract
1. Способ модифицирования поверхности имплантатов из титана и его сплавов, включающий помещение изделия в водный раствор щелочного электролита, дополнительно содержащий гидроксиапатит, возбуждение микродуговых разрядов на поверхности изделия наложением импульсов анодно-катодного тока, отличающийся тем, что получают покрытие толщиной 14±2 мкм с заранее заданной микротвердостью в пределах 150-300 МПа, для чего определяют необходимую концентрацию гидроксиапатита в электролите, исходя из формулы: ! T=312-117·C, ! где T - значение микротвердости HV0.1 [МПа]; ! C - концентрация гидроксиапатита [мас.%] в диапазоне 0,1…1,5 мас.% в водном растворе 2% KOH, при условии формирования покрытия в течение 15 мин и соотношении средних значений анодного и катодного токов за импульс Ia/Ic, равного 1. ! 2. Способ по п.1, отличающийся тем, что возбуждение на поверхности изделия микродуговых разрядов осуществляют в гальваностатическом режиме при значении тока, обеспечивающем достижение конечной величины анодного напряжения 370 В со следующими параметрами: длительностью анодного и катодного импульсов - 150 мкс, частотой следования 100 Гц и паузой между анодным и катодным импульсами 350 мкс. ! 3. Способ по п.1, отличающийся тем, что формирование покрытия производят при температуре электролита в диапазоне 25-30°C. 1. A method of modifying the surface of implants made of titanium and its alloys, comprising placing the product in an aqueous alkaline electrolyte solution, additionally containing hydroxyapatite, exciting microarc discharges on the surface of the product by applying anode-cathode current pulses, characterized in that a coating is obtained with a thickness of 14 ± 2 μm s a predetermined microhardness in the range of 150-300 MPa, for which the necessary concentration of hydroxyapatite in the electrolyte is determined based on the formula:! T = 312-117 · C,! where T is the microhardness value HV0.1 [MPa]; ! C is the concentration of hydroxyapatite [wt.%] In the range of 0.1 ... 1.5 wt.% In an aqueous solution of 2% KOH, provided that the coating is formed for 15 minutes and the ratio of the average values of the anode and cathode currents per pulse Ia / Ic, equal to 1.! 2. The method according to claim 1, characterized in that the excitation on the surface of the product of microarc discharges is carried out in galvanostatic mode at a current value that ensures the achievement of a final value of the anode voltage of 370 V with the following parameters: the duration of the anode and cathode pulses is 150 μs, the repetition rate is 100 Hz and a pause between the anode and cathode pulses of 350 μs. ! 3. The method according to claim 1, characterized in that the coating is produced at an electrolyte temperature in the range of 25-30 ° C.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008140044/15A RU2394601C2 (en) | 2008-10-09 | 2008-10-09 | Method of modifying surface of implants from titanium and its alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2008140044/15A RU2394601C2 (en) | 2008-10-09 | 2008-10-09 | Method of modifying surface of implants from titanium and its alloys |
Publications (2)
Publication Number | Publication Date |
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RU2008140044A true RU2008140044A (en) | 2010-04-20 |
RU2394601C2 RU2394601C2 (en) | 2010-07-20 |
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Application Number | Title | Priority Date | Filing Date |
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RU2008140044/15A RU2394601C2 (en) | 2008-10-09 | 2008-10-09 | Method of modifying surface of implants from titanium and its alloys |
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RU (1) | RU2394601C2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2566060C1 (en) * | 2014-04-16 | 2015-10-20 | Общество с ограниченной ответственностью "КОНМЕТ" | Bioactive coating of titanium implant inserted into individual's bone tissue |
RU2617252C2 (en) * | 2015-08-14 | 2017-04-24 | федеральное государственное бюджетное образовательное учреждение высшего образования "Тюменский государственный медицинский университет" Министерства здравоохранения Российской Федерации (ФГБОУ ВО Тюменский ГМУ Минздрава России) | Method of calcium-phosphate coatings processing on implants |
RU2630578C1 (en) * | 2016-10-31 | 2017-09-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Method for titanium implants surface modification |
RU2687792C1 (en) * | 2018-05-07 | 2019-05-16 | Сергей Вячеславович Купряхин | Method for making an intraosseous implant |
RU2693468C1 (en) * | 2019-03-25 | 2019-07-03 | Федеральное государственное бюджетное учреждение науки Институт физики прочности и материаловедения Сибирского отделения Российской академии наук (ИФПМ СО РАН) | Method of producing modified biocoating on titanium implant (versions) |
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- 2008-10-09 RU RU2008140044/15A patent/RU2394601C2/en not_active IP Right Cessation
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Publication number | Publication date |
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RU2394601C2 (en) | 2010-07-20 |
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Effective date: 20161010 |