CN102274093A - Medical magnesium alloy bracket and processing method - Google Patents
Medical magnesium alloy bracket and processing method Download PDFInfo
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- CN102274093A CN102274093A CN2011101362523A CN201110136252A CN102274093A CN 102274093 A CN102274093 A CN 102274093A CN 2011101362523 A CN2011101362523 A CN 2011101362523A CN 201110136252 A CN201110136252 A CN 201110136252A CN 102274093 A CN102274093 A CN 102274093A
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Abstract
The invention relates to a medical magnesium alloy bracket and a preparation method thereof. The preparation method comprises the following steps of: controlling an electric current at 0.2-0.5A; respectively controlling the concentrations of a bath solution at 0.01-0.03mol/L, 0.10-0.30mol/L and 0.15-0.45mol/L, wherein the bath solution is a mixed solution containing Na2SiO3, KF and KOH in a fixed ratio; controlling the temperature of electrolyte at 25-45 DEG C; carrying out microarc oxidation on a magnesium alloy bracket sample for 6-40min; preprocessing the magnesium alloy bracket subjected to microarc oxidation before nickel plating, and controlling a thermostatic water bath at 60-90 DEG C in the nickel plating process; adjusting the acidity and alkalinity of a plating solution by utilizing ammonia water and controlling the pH between 6-8; and evenly stirring the plating solution and plating the sample for 0.5-1.5h. In the prepared double-layer composite anti-corrosion film, the microarc oxidation film outer layer is of a loose and porous structure; a chemical plating layer can grow in situ on the surface of the microarc oxidation film and can effectively fill holes and crazes of the microarc oxidation film; the plating layer and the microarc oxidation film with the loose and porous structure are closely combined together; and the chemical plating layer plays a hole sealing role on the microarc oxidation film and can be used for improving the roughness of the microarc oxidation film on the surface of the bracket at the same time.
Description
Technical field
The present invention relates to the processing method that a kind of medical magnesium alloy rack surface differential arc oxidation and chemical plating combine, can effectively improve the corrosion resistance on magnesium alloy bracket surface.
Background technology
Along with human living standard's raising, very big variation has taken place in dietary structure, and the disease of various cardiovascular systeies such as coronary heart disease, coronary atherosclerosis has become the key factor that influences human health.Coronary heart disease is a kind of because coronary atherosclerosis or vasospasm and blocks caused coronary artery circulation obstacle, and causes unbalance and the myocardial ischemia-anoxemia that causes even a kind of disease of necrosis between cardiac muscle and the oxygen supply and demand.Current, countries in the world cardiovascular diseases's sickness rate is all increasing year by year, and China shows that to the census of population more than 40 years old Incidence of CHD is 2%-4%.Mainly concentrate on Drug therapy, surgical operation and interventional therapy three major types for this type of treatment of diseases.Wherein the Drug therapy cycle long, take effect slow and side effect big, and to the dependency of medicine strong outside; Section's operation then can produce nonvolatil injury to patient; The support interventional therapy is the success rate height by contrast, and relapse rate is low, has become the main means of present this type of disease of treatment, and the most frequently used technology of interventional therapy is that percutaneous coronary forms art and support implanted prosthetics.
The satisfactory mechanical property of magnesium alloy under physiological condition, possesses the favorable mechanical support performance, can degrade voluntarily afterwards, thereby overcome metal body and retained the complication that is caused for a long time, this while also means and can repeatedly get involved intervention in same pathological changes, and does not have the problem that overlapping support brings; And such alloy surface has negative charge, has low thrombus source; Magnesium is essential trace element in the human body simultaneously, and magnesium alloy bracket has become the new direction of timbering material research in recent years.But magnesium alloy chemical character is active, and corrosion resistance is very poor, in the time of especially in the environment that contains salts such as sodium chloride, very easily corrodes.The common method that improves corrosion stability of magnesium alloy mainly contains following a few class: purity and the new alloy (2) of exploitation that (1) improves alloy adopt fast solidification technology (3) process for treating surface.Preceding two kinds of methods mainly are to improve the corrosion resistance of global facility, and then a kind of method is to form the corrosion resistance that a kind of very thin functional layer improves magnesium alloy greatly on the surface.
Differential arc oxidization technique claims plasma oxidation or anode spark deposition again, be a kind of process for treating surface that grows up on the basis of common anode oxidation, it can be at light metal such as Al, Mg and Ti and alloy surface thereof the micro-arc oxidation films (MAO) with plasma chemistry and the similar ceramic character of electrochemical principle growth in situ one deck.It has following characteristics: (1) porosity is lower, and the corrosion resisting property of rete is better than rete (2) ceramic layer of surface treatment method gained such as anodic oxidation, chemical oxidation, thermal spraying from the growth of matrix one's own department or unit, and is with the matrix interlocking, therefore tight with matrix bond.Because the micropore on micro-arc oxidation films surface and crackle be the more corrosion ion of absorption easily, thereby reduce the corrosion impedance of rete.Chemical plating (EN-plating) is to utilize a kind of appropriate reductant to make the metal ion reduction in the plating bath and be deposited on electronation process on the matrix, common chemical coating is Ni-P coating, this coating is because have characteristics such as coating is even, fine and close, corrosion resistance is good, hardness is high, wearability is good, the corrosion-resistant study on the modification that is widely used in magnesium alloy, the chemical plating research of magnesium alloy starts from eighties of last century four the fifties, and at first DOW company has designed and soaked zinc method technology; Another is a direct chemical nickel plating method, the technological process of direct chemical nickel plating: alkali cleaning one washing one pickling one washing one activation one chemical nickel plating.Because after support is implanted in blood vessel, directly contact with body fluid, special environment is had relatively high expectations for the corrosion resistance of support, with industrial requirement for magnesium alloy, widely different, therefore, thus need find a kind of technology of suitable support demand and method to modify its surface reaches the necessary requirement of human body.Adopt specific conditions that direct chemical nickel plating technology and differential arc oxidation are combined, improve the corrosion resistance of support, have a good application prospect.
Summary of the invention
The object of the invention is to provide a kind of new method of medical magnesium alloy rack surface processing, significantly improves the corrosion resistance of magnesium alloy bracket.Main process comprises, selects appropriate condition (composition of differential arc oxidation tank liquor, concentration and size of current etc.) that the magnesium alloy bracket sample is carried out differential arc oxidation and handles.The differential arc oxidation magnesium alloy bracket of above-mentioned preparation is carried out pretreatment before the nickel plating, and control Ni-Speed (pH, time, temperature etc.) carries out nickel plating to the sample of handling well, obtains containing the magnesium alloy bracket of differential arc oxidation layer and chemical deposit two-layer compound etch resistant layer.
It is to contain differential arc oxidation layer and chemical deposit two-layer compound etch resistant layer that this method is handled the medical magnesium alloy rack surface that obtains, the differential arc oxidation laminar surface is a loose and porous structure, chemical deposit is in the growth of micro-arc oxidation films surface in situ, and the differential arc oxidation film layer of chemical deposit and loose and porous structure is closely linked.
The preparation process of medical magnesium alloy rack surface composite film of the present invention is as follows:
(1) differential arc oxidation is handled: magnesium alloy is carried out differential arc oxidation handle in micro-arc oxidation device, Current Control is at 0.2-0.5A, and tank liquor is the fixed Na of ratio
2SiO
3, KF, KOH mixed solution, concentration is controlled at 0.01-0.03mol/L, 0.10-0.30mol/L, 0.15-0.45mol/L respectively, electrolyte temperature is controlled at 25-45 ℃, differential arc oxidation 6-40 minute, obtain the magnesium alloy that the surface has arc differential oxide ceramic layer, the differential arc oxidation laminar surface is carried out the cleaning treatment drying for standby with dehydrated alcohol and acetone;
(2) nickel plating pre-treatment: handle carrying out sensitization, activation and reducing after the cleaning of the magnesium alloy sample behind the differential arc oxidation of above-mentioned preparation, adopt SnCl
2Aqueous hydrochloric acid solution carry out sensitization; Adopt PdCl
2Alcoholic solution activate; Adopt NaH
2PO
2H
2O reduces the unnecessary precious metal ion that adsorbs in the activation process;
(3) Nickel Plating Treatment: the sample of the above-mentioned preparation that pretreatment is good places chemical plating fluid, main salt is 15g/L for the basic carbonate nickel concentration, inferior sodium phosphate 30g/L, as Reducing agent, water bath with thermostatic control 60-90 ℃, the Acidity of Aikalinity control pH that regulates plating bath with ammonia evenly stirs plating bath and to sample plating 0.5-1.5h between 6-8, after experiment finishes with sample with deionized water wash and dry.
Magnesium alloy bracket new surface treatment provided by the invention, differential arc oxidation film layer surface micropore structure, bigger for subsequent chemistry plating influence, control is crucial to the differential arc oxidation condition.The two-layer compound anticorrosion film of preparation, chemical deposit is grown at the micro-arc oxidation films surface in situ, can fill the hole and the crackle of micro-arc oxidation films effectively, the differential arc oxidation film layer of coating and loose porous structure is closely linked, chemical deposit plays the effect to microarc oxide film hole sealing, improves the roughness of rack surface differential arc oxidation film layer simultaneously.
The anticorrosive composite film of magnesium alloy bracket as above-mentioned process preparation, chemical plating fluid is by in the micropore and crackle that are filled into the micro-arc oxidation films surface, generate and the fine and close bonded chemical deposit of micro-arc oxidation films, effectively fill the space and the crackle of full micro-arc oxidation films simultaneously, can improve greatly magnesium alloy bracket corrosion resistance, remarkable for the corrosion resistance effect that improves the magnesium alloy behind the differential arc oxidation, having improved the macromolecule corrosion-resistant coating simultaneously handles and to come off easily after the after-poppet rete is implanted and some shortcomings such as corrosion resistance difference, the anticorrosive two-layer compound rete of the magnesium alloy bracket that this method obtains technology of preparing can be applicable to the magnesium alloy bracket surface, and market application foreground is wide.
Description of drawings
Fig. 1 is the scanning electron microscope picture on the magnesium alloy AZ81 surface by micro-arc oxidation film surface of embodiment 2 preparations.
Fig. 2 is the scanning electron microscope picture on the MAO/EN plating composite membrane surface, magnesium alloy AZ81 surface of embodiment 2 preparations.
Fig. 3 is the scanning electron microscope picture of the magnesium alloy AZ81 surface MAO/EN plating composite membrane tangent plane of embodiment 2 preparations.
Fig. 4 be before and after the magnesium alloy AZ81 surface MAO/EN plating composite anticorrosive film modification of embodiment 3 preparation at 37 ℃, the electrokinetic potential polarization curve in Hank ' the s liquid of pH 7.4.
The specific embodiment
1, the medical timbering material of this paper is the AZ81 magnesium alloy bracket.
2, Hank ' s liquid preparation
Take by weighing NaCl 8.0g, KCl 0.2g, Na2HPO41.15g, the KH2PO40.2g of different quality respectively, be dissolved in and prepare Hank ' s simulated body fluid in the 1L deionized water, fully neutral phosphate buffered solution (PBS) the solution calibration of the standard pH of pH 6.86 and pH 9.18 is adopted in the dissolving back, adopt acidometer to measure the pH value of Hank ' s solution then, the pH value that adopts hydrochloric acid and sodium hydroxide to regulate Hank ' s solution is 7.4.
3, electro-chemical test
The PARSTAT2263 electrochemistry comprehensive tester that utilizes U.S. Princeton company to produce is measured the electrokinetic potential polarization curve of magnesium alloy bracket in Hank ' s liquid.Be controlled at 37 ℃ with the water bath with thermostatic control temperature, polarization curve adopts three-electrode system, and auxiliary electrode is a platinum electrode, reference electrode is a saturated calomel electrode, sweep speed is 0.5mv/s, and it is 10mv that ac impedance measurement adds sinusoidal wave amplitude, and the frequency scanning scope is 100KHz-10MHz.
Embodiment 1
(1) the magnesium alloy bracket sample is carried out differential arc oxidation in micro-arc oxidation device and handle, Current Control is at 0.2A, and tank liquor is the Na of 0.01mol/L
2SiO
3, 0.10mol/LKF, 0.15KOH mixed solution, electrolyte temperature is controlled at 25 ℃, differential arc oxidation 6 minutes obtains the magnesium alloy that the surface has arc differential oxide ceramic layer, and the differential arc oxidation laminar surface is carried out the cleaning treatment drying for standby with dehydrated alcohol and acetone.(2) nickel plating pre-treatment.Handle carrying out sensitization, activation and reducing after the cleaning of the magnesium alloy sample behind the differential arc oxidation of above-mentioned preparation.Adopt rare SnCl
2Aqueous hydrochloric acid solution carry out sensitization, the purpose of sensitization is the Sn that allows micro-arc oxidation films surface adsorption one deck have reproducibility
2+Adopt PdCl
2Alcoholic solution activate, palladium ion is reduced into palladium atom with catalytic action; Adopt NaH
2PO
2H
2O reduces the unnecessary precious metal ion that adsorbs in the activation process, influences the stability of plating bath to prevent these ions.(3) Nickel Plating Treatment.The sample of the above-mentioned preparation that pretreatment is good places chemical plating fluid, main salt is 15g/L for the basic carbonate nickel concentration, inferior sodium phosphate 30g/L is as Reducing agent, 60 ℃ of waters bath with thermostatic control, evenly stir plating bath and to sample plating 0.5 hour, regulate the Acidity of Aikalinity of plating bath with ammonia and control pH=6, after experiment finishes sample is used deionized water wash three times and drying, obtain AZ81-MAO/EN plating surface recombination membrane sample.
Embodiment 2
(1) the magnesium alloy bracket sample is carried out differential arc oxidation in micro-arc oxidation device and handle, Current Control is at 0.5A, and tank liquor is the Na of 0.02mol/L
2SiO
3, 0.20mol/LKF, 0.3mol/LKOH mixed solution, electrolyte temperature is controlled at 30 ℃, differential arc oxidation 18 minutes obtains the magnesium alloy that the surface has arc differential oxide ceramic layer, and the differential arc oxidation laminar surface is carried out the cleaning treatment drying for standby with dehydrated alcohol and acetone.The scanning under SEM of dry back obtains surperficial picture, and as shown in Figure 1, the surface is a loose and porous structure.(2) nickel plating pre-treatment.Handle carrying out sensitization, activation and reducing after the cleaning of the magnesium alloy sample behind the differential arc oxidation of above-mentioned preparation.Adopt rare SnCl
2Aqueous hydrochloric acid solution carry out sensitization, the purpose of sensitization is the Sn that allows micro-arc oxidation films surface adsorption one deck have reproducibility
2+Adopt PdCl
2Alcoholic solution activate, palladium ion is reduced into palladium atom with catalytic action; Adopt NaH
2PO
2H
2O reduces the unnecessary precious metal ion that adsorbs in the activation process, influences the stability of plating bath to prevent these ions.(3) Nickel Plating Treatment.The sample of the above-mentioned preparation that pretreatment is good places chemical plating fluid, main salt is 15g/L for the basic carbonate nickel concentration, inferior sodium phosphate 30g/L is as Reducing agent, 82 ℃ of waters bath with thermostatic control, regulate the Acidity of Aikalinity control pH=7 of plating bath with ammonia, evenly stir plating bath and, after experiment finishes sample is used deionized water wash three times and dry, obtain AZ81-MAO/EN plating surface recombination membrane sample sample plating 1 hour.To prepare sample scans under SEM and obtains surperficial picture as shown in Figure 2, coating surface is cell structure, the rete densification, imporosity between born of the same parents' shape thing, blemish does not appear, the section picture as shown in Figure 3 after chemical deposit had effectively covered the surface micropore of magnesium alloy differential arc oxidation film and crackle chemical plating, comparison diagram 1 as can be known after the chemical plating micropore effectively filled, tight between the interface, therefore chemical plating effectively is filled among the micropore, the outer loose porous structure of coating and micro-arc oxidation films is closely linked, and chemical plating plays the effect to microarc oxide film hole sealing.
(1) the magnesium alloy bracket sample is carried out differential arc oxidation in micro-arc oxidation device and handle, Current Control is at 0.4A, and tank liquor is the Na of 0.03mol/L
2SiO
3, 0.30mol/LKF, 0.45mol/LKOH mixed solution, electrolyte temperature is controlled at 30 ℃, differential arc oxidation 18 minutes obtains the magnesium alloy that the surface has arc differential oxide ceramic layer, and the differential arc oxidation laminar surface is carried out the cleaning treatment drying for standby with dehydrated alcohol and acetone.(2) nickel plating pre-treatment.Handle carrying out sensitization, activation and reducing after the cleaning of the magnesium alloy sample behind the differential arc oxidation of above-mentioned preparation.Adopt rare SnCl
2Aqueous hydrochloric acid solution carry out sensitization, the purpose of sensitization is the Sn that allows micro-arc oxidation films surface adsorption one deck have reproducibility
2+Adopt PdCl
2Alcoholic solution activate, palladium ion is reduced into palladium atom with catalytic action; Adopt NaH
2PO
2H
2O reduces the unnecessary precious metal ion that adsorbs in the activation process, influences the stability of plating bath to prevent these ions.(3) Nickel Plating Treatment.The above-mentioned preparation sample that pretreatment is good places chemical plating fluid, main salt is 15g/L for the basic carbonate nickel concentration, inferior sodium phosphate 30g/L is as Reducing agent, 82 ℃ of waters bath with thermostatic control, regulate the Acidity of Aikalinity control pH=8 of plating bath with ammonia, evenly stir plating bath and, after experiment finishes sample is used deionized water wash three times and dry, obtain AZ81-MAO/EN plating surface recombination membrane sample sample plating 1.5 hours.The AZ81-MAO/ENplating composite anticorrosive membrane support of preparation at 37 ℃, is measured its electrokinetic potential polarization curve, as shown in Figure 4 in Hank ' the s simulated body fluid of pH=7.4.Electrokinetic potential polarization curve before and after the modification of magnesium alloy differential arc oxidation film chemical plating shows, after the chemical plating modification, the corrosion potential of composite membrane before the modification-1.52V, bring up to-0.28V, current potential has improved 1.24V, move from the obvious negative sense of corrosion current, show that the magnesium alloy bracket corrosion resistance after the chemical plating modification significantly strengthens than single surface by micro-arc oxidation membrane sample, thus the corrosion rate that can slow down magnesium alloy bracket greatly.
(1) the magnesium alloy bracket sample is carried out differential arc oxidation in micro-arc oxidation device and handle, Current Control is at 0.3A, and tank liquor is the Na of 0.03mol/L
2SiO
3, 0.30mol/LKF, 0.45KOH mixed solution, electrolyte temperature is controlled at 45 ℃, differential arc oxidation minute obtains the magnesium alloy that the surface has arc differential oxide ceramic layer, and the differential arc oxidation laminar surface is carried out the cleaning treatment drying for standby with dehydrated alcohol and acetone.(2) nickel plating pre-treatment.Handle carrying out sensitization, activation and reducing after the cleaning of the magnesium alloy sample behind the differential arc oxidation of above-mentioned preparation.Adopt rare SnCl
2Aqueous hydrochloric acid solution carry out sensitization, the purpose of sensitization is the Sn that allows micro-arc oxidation films surface adsorption one deck have reproducibility
2+Adopt PdCl
2Alcoholic solution activate, palladium ion is reduced into palladium atom with catalytic action; Adopt NaH
2PO
2H
2O reduces the unnecessary precious metal ion that adsorbs in the activation process, influences the stability of plating bath to prevent these ions.(3) Nickel Plating Treatment.The above-mentioned sample that pretreatment is good places chemical plating fluid, main salt is 15g/L for the basic carbonate nickel concentration, inferior sodium phosphate 30g/L is as Reducing agent, 90 ℃ of waters bath with thermostatic control, regulate the Acidity of Aikalinity control pH=8 of plating bath with ammonia, evenly stir plating bath and, after experiment finishes sample is used deionized water wash three times and dry, obtain AZ81-MAO/EN plating surface recombination membrane sample sample plating 1.5 hours.
Claims (4)
1. medical magnesium alloy support; It is characterized in that alloy surface has the two-layer compound anticorrosion film, the micro-arc oxidation films skin is a loose and porous structure, and chemical deposit is grown at the micro-arc oxidation films surface in situ; The differential arc oxidation film layer of chemical deposit and loose and porous structure is closely linked.
2. as the preparation method of the medical magnesium alloy support of right 1, its characterization step is as follows:
(1) differential arc oxidation is handled: magnesium alloy is carried out differential arc oxidation handle in micro-arc oxidation device, Current Control is at 0.2-0.5A, and tank liquor is the fixed Na of ratio
2SiO
3, KF, KOH mixed solution, concentration is controlled at 0.01-0.03mol/L, 0.10-0.30mol/L, 0.15-0.45mol/L respectively, electrolyte temperature is controlled at 25-45 ℃, differential arc oxidation 6-40 minute, obtain the magnesium alloy that the surface has arc differential oxide ceramic layer, the differential arc oxidation laminar surface is carried out the cleaning treatment drying for standby with dehydrated alcohol and acetone;
(2) nickel plating pre-treatment: handle carrying out sensitization, activation and reducing after the cleaning of the magnesium alloy sample behind the differential arc oxidation of above-mentioned preparation, adopt SnCl
2Aqueous hydrochloric acid solution carry out sensitization; Adopt PdCl
2Alcoholic solution activate; Adopt NaH
2PO
2H
2O reduces the unnecessary precious metal ion that adsorbs in the activation process;
(3) Nickel Plating Treatment: the above-mentioned preparation sample that pretreatment is good places chemical plating fluid, main salt is 15g/L for the basic carbonate nickel concentration, inferior sodium phosphate 30g/L is as Reducing agent, water bath with thermostatic control 60-90 ℃, regulate the Acidity of Aikalinity control pH of plating bath between 6-8 with ammonia, evenly stir plating bath and to sample plating 0.5-1.5h, after experiment finishes with sample with deionized water wash and dry, obtain AZ81-MAO/EN plating surface recombination membrane sample.
3. as preparation method as described in the claim 2, it is characterized in that in the step () that Current Control is at 0.2-0.5A in the differential arc oxidation process, tank liquor is the fixed Na of ratio
2SiO
3, KF, KOH mixed solution, concentration is controlled at 0.01-0.03mol/L, 0.10-0.30mol/L, 0.15-0.45mol/L respectively, electrolyte temperature is controlled at 25-45 ℃, differential arc oxidation 6-40 minute.
4. as preparation method as described in the claim 2, it is characterized in that in the step (three) that control water bath with thermostatic control temperature is at 60-90 ℃ in the Nickel Plating Treatment process; Regulate the Acidity of Aikalinity control pH of plating bath between 6-8 with ammonia; Evenly stir plating bath and to sample plating 0.5-1.5h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818481A (en) * | 2015-04-16 | 2015-08-05 | 柳州豪祥特科技有限公司 | Surface pretreatment method of magnesium alloy hub |
| CN106413636A (en) * | 2014-06-03 | 2017-02-15 | 奥林巴斯株式会社 | Osteosynthesis implant |
| CN113365579A (en) * | 2019-01-30 | 2021-09-07 | 株式会社日本医疗机器技研 | Bioabsorbable stent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721266A (en) * | 2009-12-23 | 2010-06-09 | 天津大学 | Absorbable magnesium alloy stent of anticorrosion and drug release composite coating and preparation method thereof |
| CN101760733A (en) * | 2010-01-28 | 2010-06-30 | 西安理工大学 | Magnesium alloy chemical nickel-plating surface treatment method taking microarc oxidation process as pretreatment |
-
2011
- 2011-07-08 CN CN2011101362523A patent/CN102274093A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721266A (en) * | 2009-12-23 | 2010-06-09 | 天津大学 | Absorbable magnesium alloy stent of anticorrosion and drug release composite coating and preparation method thereof |
| CN101760733A (en) * | 2010-01-28 | 2010-06-30 | 西安理工大学 | Magnesium alloy chemical nickel-plating surface treatment method taking microarc oxidation process as pretreatment |
Non-Patent Citations (1)
| Title |
|---|
| 张晓琳: "镁合金微弧氧化/导电复合涂层工艺研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413636A (en) * | 2014-06-03 | 2017-02-15 | 奥林巴斯株式会社 | Osteosynthesis implant |
| CN106413636B (en) * | 2014-06-03 | 2018-04-20 | 奥林巴斯株式会社 | Bone engagement implant |
| CN104818481A (en) * | 2015-04-16 | 2015-08-05 | 柳州豪祥特科技有限公司 | Surface pretreatment method of magnesium alloy hub |
| CN113365579A (en) * | 2019-01-30 | 2021-09-07 | 株式会社日本医疗机器技研 | Bioabsorbable stent |
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