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Implant with surface active coating

A surface active, implant technology, applied in the direction of surface reaction electrolytic coating, coating, dental implant, etc., can solve problems such as implant failure, achieve the effect of increasing coarseness, uniform physical and chemical properties, and mild preparation conditions

Inactive Publication Date: 2018-06-12
DALIAN SANSHENG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the biological inertness of titanium, when the implant area has insufficient bone mass, osteoporosis or acute inflammation, the implant will fail.

Method used

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  • Implant with surface active coating
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) The surface of the titanium metal implant was polished step by step with 200, 300, 600, 1200 and 2000 mesh sandpaper, followed by ultrasonic cleaning with acetone, ethanol and distilled water for 10 minutes, and the titanium base layer was formed after drying;

[0054] (2) Place the implant in step (1) in a mixed etching agent composed of hydrofluoric acid and hydrochloric acid for surface etching treatment, ultrasonically clean it with distilled water, and then dry it naturally at room temperature; the mixed etching agent is 47% HF The mixed solution mixed with 38% HCl according to the volume ratio of 1:1, the surface etching treatment conditions are: 60°C, 20min;

[0055] (3) In an air environment, add calcium chloride and sodium dihydrogen phosphate to deionized water to obtain a mixed solution, use it as an electrolyte, place the implant in step (2) in the electrolyte, and use titanium metal The anode is used as the anode, and the stainless steel is used as the ...

Embodiment 2

[0061] (1) The surface of the titanium metal implant was polished step by step with 200, 300, 600, 1200 and 2000 mesh sandpaper, followed by ultrasonic cleaning with acetone, ethanol and distilled water for 10 minutes, and the titanium base layer was formed after drying;

[0062] (2) Place the implant in step (1) in a mixed etching agent composed of hydrofluoric acid and hydrochloric acid for surface etching treatment, ultrasonically clean it with distilled water, and then dry it naturally at room temperature; the mixed etching agent is 47% HF The mixed solution mixed with 38% HCl according to the volume ratio of 1:1, the surface etching treatment conditions are: 60°C, 20min;

[0063] (3) In an air environment, add calcium chloride and sodium dihydrogen phosphate to deionized water to obtain a mixed solution, use it as an electrolyte, place the implant in step (2) in the electrolyte, and use titanium metal The anode is used as the cathode, and the stainless steel is used as th...

Embodiment 3

[0069] (1) The surface of the titanium metal implant was polished step by step with 200, 300, 600, 1200 and 2000 mesh sandpaper, followed by ultrasonic cleaning with acetone, ethanol and distilled water for 10 minutes, and the titanium base layer was formed after drying;

[0070] (2) Place the implant in step (1) in a mixed etching agent composed of hydrofluoric acid and hydrochloric acid for surface etching treatment, ultrasonically clean it with distilled water, and then dry it naturally at room temperature; the mixed etching agent is 47% HF The mixed solution mixed with 38% HCl according to the volume ratio of 1:1, the surface etching treatment conditions are: 60°C, 10min;

[0071] (3) In an air environment, add calcium chloride and sodium dihydrogen phosphate to deionized water to obtain a mixed solution, use it as an electrolyte, place the implant in step (2) in the electrolyte, and use titanium metal The anode is used as the cathode, and the stainless steel is used as th...

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Abstract

The invention discloses an implant with a surface active coating. Screw threads are arranged on an outer side wall of the implant, and are sequentially divided into a cortical bone decompression screwthread section, a cortical bone cutting screw thread section, a cancellous bone extruding screw thread section and a cancellous bone cutting screw thread section from top to bottom; screw pitches ofthe screw threads are increased from top to bottom; a self-tapping groove is formed in the cancellous bone cutting screw thread section; a screw thread is arranged in the implant; a titanium-based bottom layer is arranged on the surface of the implant; a titanium dioxide layer containing calcium phosphate is covered on the outer surface of the titanium-based bottom layer; a polyelectrolyte layer is covered on the outer surface of the titanium dioxide layer containing the calcium phosphate. According to the implant with the surface active coating provided by the invention, the implant is provided with the four different screw threads so as to produce different lateral pressures on a cortical bone and a cancellous bone when screwing into a jaw bone, so that the initial stability of the implant is facilitated, the superior initial stability is favorable for osseointegration, and the surface of the implant is endowed with a favorable antibacterial property through polylysine bacteriostasis.

Description

technical field [0001] The invention relates to the field of biomedical implants, in particular to an implant with a surface active coating. Background technique [0002] Titanium and titanium alloys have good biocompatibility, corrosion resistance, and can form bone fusion with surrounding bone tissue, and are widely used in human implant materials. Since Professor Branemark of Sweden implanted the first titanium dental implant into the human body in 1965, titanium and titanium alloys have been widely used in artificial dental implants. [0003] In 1977, Japanese scholars S.Shima and H.Sakai found that an actinomycete No.346 could produce a large amount of stable DP substances in the process of screening Dragendo~Positive (abbreviated as DP) substances from microorganisms. The analysis and structural analysis of the hydrolyzed product confirmed that the DP substance is a homomonomer polymer containing 25-30 lysine residues, called ε-polylysine (ε-PL). [0004] ε-polylysin...

Claims

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Application Information

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IPC IPC(8): A61L27/40A61L27/06A61L27/30A61L27/32A61L27/34A61L27/50A61L27/54C25D11/26C23F1/26A61C8/00
CPCA61L27/06A61L27/306A61L27/32A61L27/34A61L27/50A61L27/54A61C8/0013A61C8/0018C23F1/26C25D11/024C25D11/26A61L2300/404A61L2420/02A61L2430/12A61L2420/08A61L2420/06A61L2300/216C08L77/04C08L5/08
Inventor 蔡俊江张久文
Owner DALIAN SANSHENG SCI & TECH DEV
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