CN107320220B - 一种基于陶瓷增材制造的多孔植入物的制备方法 - Google Patents
一种基于陶瓷增材制造的多孔植入物的制备方法 Download PDFInfo
- Publication number
- CN107320220B CN107320220B CN201710449043.1A CN201710449043A CN107320220B CN 107320220 B CN107320220 B CN 107320220B CN 201710449043 A CN201710449043 A CN 201710449043A CN 107320220 B CN107320220 B CN 107320220B
- Authority
- CN
- China
- Prior art keywords
- ceramic
- metal
- porous implant
- implant
- additive manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007943 implant Substances 0.000 title claims abstract description 84
- 239000000919 ceramic Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000000654 additive Substances 0.000 title claims abstract description 28
- 230000000996 additive effect Effects 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 20
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 238000005245 sintering Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 7
- 238000000151 deposition Methods 0.000 claims abstract description 7
- 239000002071 nanotube Substances 0.000 claims abstract description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 4
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 24
- 229910052715 tantalum Inorganic materials 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 16
- 235000019731 tricalcium phosphate Nutrition 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 238000007740 vapor deposition Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004663 powder metallurgy Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000001506 calcium phosphate Substances 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 235000012245 magnesium oxide Nutrition 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 3
- 229940078499 tricalcium phosphate Drugs 0.000 claims description 3
- 229910000391 tricalcium phosphate Inorganic materials 0.000 claims description 3
- RJSRQTFBFAJJIL-UHFFFAOYSA-N niobium titanium Chemical compound [Ti].[Nb] RJSRQTFBFAJJIL-UHFFFAOYSA-N 0.000 claims description 2
- 239000002086 nanomaterial Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000007709 nanocrystallization Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000016 photochemical curing Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000000110 selective laser sintering Methods 0.000 description 3
- 210000002449 bone cell Anatomy 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011664 nicotinic acid Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 231100000701 toxic element Toxicity 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
本发明提供一种基于陶瓷增材制造的多孔植入物的制备方法,包括如下步骤:使用增材制造方法制备具有梯度微观结构的多孔植入物模型的陶瓷负型模具;通过压力机压制将金属粉填充陶瓷模具,获得初步的金属多孔植入物,真空烧结,增强植入物强度;将植入物与陶瓷模具的混合体置入可溶解陶瓷模具的溶液中,得到独立的金属植入物;利用化学气相沉积方法在金属植入物表面沉积金属涂层;最后利用阳极氧化方法在金属植入物表面成形金属氧化物纳米管结构。该方法克服了传统多孔植入物制备方法微观结构不可控和直接激光增材制造难度大、设备要求高的不足,且能实现表面结构的纳米化,开辟具有宏微纳结构的多孔植入物制备的新途径。
Description
技术领域
本发明涉及一种基于陶瓷增材制造的多孔植入物的制备方法,该方法属于生物增材制造(3D打印)领域,可应用于生物医疗领域。
背景技术
增材制造在医学领域具有重要的应用,尤其对于制造个性化植入物具有无可比拟的优势,未来具有数百亿的潜在市场。目前,对不锈钢、钛合金和钴基合金多种金属材料进行金属直接成形制造的植入物已经广泛应用于心脏瓣膜支架、血管支架、消化道支架以及骨修复和替代支架及其他支架临床,取得了较好的治疗效果。但是复杂的人体内环境会引起材料腐蚀而导致有毒元素的释放,从而导致金属材料的生物相容性和力学性能降低。此外,目前的多孔植入物不具有可控宏微观一体化结构和纳米化结构:合理的设计宏观和微观的一体化结构能够减少多孔植入物的应力问题,增强其力学性能;纳米结构不仅有利于体内骨细胞的粘附、还能促进骨细胞的再生和分化,提高植入物的生物相容性。因此,如何解决多孔植入物微观仿生梯度结构不可控及无纳米结构的问题,制备出生物相容性和力学性能俱佳的多孔植入物是其应用于临床的关键问题之一。
传统的多孔金属植入物的制造方法主要包括:有机泡沫浸渍法、造孔剂-粉末烧结法、气相沉积法。但这些工艺可控性差,难以实现对植入物宏观结构的个性化和微观仿生梯度孔隙结构的主动控制,而且无法成形纳米结构,此外工艺制备流程复杂、投资大、生产成本高。
发明内容
为了克服多孔植入物支架微观梯度结构不可控及不能形成纳米结构等不足,本发明的目的在于提供一种基于陶瓷增材制造的多孔植入物的制备方法,该方法将增材制造技术、粉末冶金技术、化学气相沉积技术和阳极氧化技术相结合,可实现微观梯度结构可控成形,并成形纳米结构利于细胞活动,提高多孔植入物的生物相容性,有望开辟多孔支架制备的新途径,对于促进多孔植入物的临床应用具有重要意义。
为达到上述目的,本发明采用了以下技术方案:
一种基于陶瓷增材制造的多孔植入物的制备方法,包括如下的步骤:
1)使用增材制造方法制备具有梯度微观结构的多孔植入物模型的陶瓷负型模具;
2)将步骤1)制得的陶瓷负型模具置于冲压模具中,用金属粉包埋,使用压力机将金属粉压制入陶瓷模具中,获得初步的金属多孔植入物置于陶瓷模具之中;
3)将步骤2)中陶瓷模具和初步金属多孔植入物的混合体置入真空高温炉中增强金属多孔植入物的强度;
4)将步骤3)中制得的混合体置入可去除陶瓷模具的溶液中,得到金属多孔植入物;
5)将步骤4)中制得的金属多孔植入物利用化学气相沉积的方法在多孔植入物表面沉积金属涂层进一步增强强度;
6)将步骤5)中制得的金属多孔植入物置入电解液中进行阳极氧化处理,得到表面具有金属氧化物纳米管的定制化金属多孔植入物。
本发明的进一步的改进在于:步骤1)中,陶瓷负型模具的材料为羟基磷灰石、磷酸三钙、二氧化硅、氧化镁、氧化铝中的至少一种,陶瓷粉的粒径范围为0.1-200μm。
本发明的进一步的改进在于:步骤1)中,所用的增材制造方法为3D打印凝胶注模、光固化成形(SLA)、激光选区烧结(SLS)、3DP中的至少一种。
本发明的进一步的改进在于:步骤2)中的金属粉为钽、钛铌或铍等高熔点金属,金属粉的粒径范围0.1-200μm。
本发明的进一步的改进在于:步骤2)中压制金属粉的压力为1MPa-1000Mpa。
本发明的进一步的改进在于:步骤3)真空烧结的真空度≥5*10-2Pa。
本发明的进一步的改进在于:步骤3)中,所述的烧结工艺参数为:先使升温2℃~30℃/h,从室温升至150℃~600℃,然后保温0.5~5小时;再以2℃~30℃/h升至300℃~800℃,保温0.5~5小时;最后以40℃~200℃/h升至1100℃~1600℃,保温2~5小时;保温后关闭电炉电源,自然降至室温取出。
本发明的进一步的改进在于:步骤4)中溶解陶瓷模具的溶液为(浓)硫酸、(浓)盐酸、(热)氢氧化钠溶液、(热)氢氧化钾溶液。
本发明的进一步的改进在于:步骤5)中利用气相沉积的方法在多孔植入物支架表面沉积金属涂层,反应温度为500-2000℃,涂层厚度为10-500μm,反应气氛为氢气。
本发明的进一步的改进在于:步骤6)中,阳极为金属植入物,阴极为石墨棒、铂片,两电极间距为0.5-15cm,电解液为氢氟酸(0.05mol/L-5mol/L)和硫酸(2mol/L-18.4mol/L)的乙二醇溶液、水溶液、无水甘油溶液,,电压0.1-300V,阳极氧化时间10s-4h,反应温度为10-300℃。
本发明技术与现有技术相比具有如下优点:
1.本发明将增材制造技术、凝胶注模成形、粉末冶金、化学气相沉积技术和阳极氧化技术相结合,能够实现对多孔植入物微观梯度孔隙结构的成形控制。
2.制备的多孔植入物具有个性化的宏观结构和梯度微观孔隙结构,个性化定制更加利于患者治疗。
3.制备的多孔植入物具有纳米结构,利于细胞活动,提高植入物的生物相容性。
具体实施方式
本发明所述一种基于陶瓷增材制造的多孔植入物的制备方法,包括增材制造、粉末冶金、化学气相沉积和阳极氧化四个环节:
使用增材制造方法制备具有梯度微观结构的多孔植入物模型的陶瓷负型模具。
所述制备方法制备的陶瓷负型模具的材料为羟基磷灰石、磷酸三钙、二氧化硅、氧化镁、氧化铝中的至少一种,陶瓷粉的粒径范围为0.1-200μm。
所述制备方法制备陶瓷负型模具的增材制造方法为3D打印凝胶注模、光固化成形(SLA)、激光选区烧结(SLS)、3DP中的至少一种。
所述制备方法将陶瓷负型模具置于冲压模具中,用金属粉包埋,使用压力机将金属粉压制入陶瓷模具中,获得初步的金属多孔植入物置于陶瓷模具之中。
所述制备方法使用金属粉为钽、钛铌或铍等高熔点金属,粒径范围0.1-200μm。
所述压制金属粉的压力为1MPa-1000Mpa。
所述制备方法将陶瓷模具和初步金属多孔植入物的混合体置入真空高温炉中增强金属多孔植入物的强度。
所述真空烧结的真空度≥5*10-2Pa。
所述的烧结工艺参数为:先使升温2℃~30℃/h,从室温升至150℃~600℃,然后保温0.5~5小时;再以2℃~30℃/h升至300℃~800℃,保温0.5~5小时;最后以40℃~200℃/h升至1100℃~1600℃,保温2~5小时;保温后关闭电炉电源,自然降至室温取出。
所述制备方法将制得的混合体置入可去除陶瓷模具的溶液中,得到金属多孔植入物。
所述溶解陶瓷模具的溶液为(浓)硫酸、(浓)盐酸、(热)氢氧化钠溶液、(热)氢氧化钾溶液。
所述制备方法将制得的金属多孔植入物利用化学气相沉积的方法在多孔植入物表面沉积金属涂层进一步增强强度。
所述利用气相沉积的方法在多孔植入物支架表面沉积金属涂层,反应温度为500-2000℃,涂层厚度为10-500μm,反应气氛为氢气。
所述制备方法将制得的金属多孔植入物置入电解液中进行阳极氧化处理,得到表面具有金属氧化物纳米管的定制化金属多孔植入物。
所述阳极氧化处理的阳极为金属植入物,阴极为石墨棒、铂片,两电极间距为0.5-15cm,电解液为氢氟酸(0.05mol/L-5mol/L)和硫酸(2mol/L-18.4mol/L)的乙二醇溶液、水溶液、无水甘油溶液,,电压0.1-300V,阳极氧化时间10s-4h,反应温度为10-300℃。
实施例
一种基于陶瓷增材制造的多孔植入物的制备方法,包括增材制造、粉末冶金、化学气相沉积和阳极氧化四个环节:
以TCP作为陶瓷模具原料通过光固化成形、粉末冶金及阳极氧化制备具有微纳结构的多孔钽植入物为例。首先根据医学影像数据设计出具有微观结构的定制化多孔钽植入物模型的负型。然后配制TCP与预混液、光引发剂和分散剂的混合浆料,使用光固化成形设备利用配制的混合浆料制备TCP模具,高温脱脂。将TCP模具置于冲压模具中,用钽粉包埋,使用压力机将钽粉压制入陶瓷模具中,获得初步的多孔钽植入物置于陶瓷模具之中,真空高温烧结增强多孔钽植入物的强度。将多孔钽支架与TCP模具的混合体置入盐酸当中溶解TCP,得到多孔钽植入物。利用气相沉积的方法在多孔钽植入物表面沉积钽涂层,最后置入电解液中进行阳极氧化处理,得到表面具有氧化钽纳米管的定制化多孔钽植入物。
个性化宏微观一体化设计时,根据医学影像数据使用三维软件设计出具有微观结构的个性化多孔钽植入物模型的负型。按质量比将TCP球形粉、预混液、光引发剂、分散剂混合均匀得到浆料。将制得的浆料使用光固化成形设备控制工艺参数曝光时间和层厚,制得TCP模具,置入高温真空炉中,按照烧结工艺进行升温、保温和降温进行脱脂。将TCP模具置于冲压模具中,用钽粉包埋,控制压力机压力将钽粉压制入陶瓷模具中,置入真空高温炉中,按照烧结工艺进行升温、保温和降温进行烧结增强强度。将多孔钽支架与TCP模具的混合体置入溶解TCP的溶液中。利用气相沉积的方法在多孔钽植入物表面沉积钽涂层,控制反应温度、钽涂层厚度和反应气氛。最后置入电解液中进行阳极氧化处理,阳极为多孔钽支架,阴极为石墨棒电解液为氢氟酸和硫酸的混合溶液,控制电极间距反应电压、阳极氧化时间、反应温度。
Claims (8)
1.一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于,包括如下的步骤:
1)使用增材制造方法制备具有梯度微观结构的多孔植入物模型的陶瓷负型模具;陶瓷负型模具的材料为羟基磷灰石、磷酸三钙、二氧化硅、氧化镁、氧化铝中的至少一种,陶瓷粉的粒径范围为0.1-200μm;所用的增材制造方法为3D打印凝胶注模、光固化成形SLA、激光选区烧结SLS、3DP中的至少一种;
2)将步骤1)制得的陶瓷负型模具置于冲压模具中,用金属粉包埋,使用压力机将金属粉压制入陶瓷模具中,获得初步的金属多孔植入物置于陶瓷模具之中;
3)利用粉末冶金,将步骤2)中陶瓷模具和初步金属多孔植入物的混合体置入真空高温炉中增强金属多孔植入物的强度;
4)将步骤3)中制得的混合体置入可去除陶瓷模具的溶液中,得到金属多孔植入物;
5)将步骤4)中制得的金属多孔植入物利用化学气相沉积的方法在多孔植入物表面沉积金属涂层进一步增强强度;
6)将步骤5)中制得的金属多孔植入物置入电解液中进行阳极氧化处理,得到表面具有金属氧化物纳米管的定制化金属多孔植入物。
2.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤2)中的金属粉为钽、钛铌或铍高熔点金属,金属粉的粒径范围0.1~200μm。
3.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤2)中压制金属粉的压力为1MPa~1000Mpa。
4.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤3)真空烧结的真空度≥5×10-2Pa。
5.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤3)中的烧结工艺参数为:先使升温2℃~30℃/h,从室温升至150℃~600℃,然后保温0.5~5小时;再以2℃~30℃/h升至300℃~800℃,保温0.5~5小时;最后以40℃~200℃/h升至1100℃~1600℃,保温2~5小时;保温后关闭电炉电源,自然降至室温取出。
6.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤4)中溶解陶瓷模具的溶液为硫酸、盐酸、氢氧化钠溶液、氢氧化钾溶液。
7.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤5)中利用气相沉积的方法在多孔植入物支架表面沉积金属涂层,反应温度为500~2000℃,涂层厚度为10~500μm,反应气氛为氢气。
8.根据权利要求1所述的一种基于陶瓷增材制造的多孔植入物的制备方法,其特征在于:步骤6)中,阳极为金属植入物,阴极为石墨棒、铂片,两电极间距为0.5~15cm,电解液为氢氟酸0.05mol/L~5mol/L和硫酸2mol/L~18.4mol/L的乙二醇溶液、水溶液、无水甘油溶液,电压0.1~300V,阳极氧化时间10s~4h,反应温度为10~300℃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710449043.1A CN107320220B (zh) | 2017-06-14 | 2017-06-14 | 一种基于陶瓷增材制造的多孔植入物的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710449043.1A CN107320220B (zh) | 2017-06-14 | 2017-06-14 | 一种基于陶瓷增材制造的多孔植入物的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107320220A CN107320220A (zh) | 2017-11-07 |
CN107320220B true CN107320220B (zh) | 2019-12-24 |
Family
ID=60194740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710449043.1A Expired - Fee Related CN107320220B (zh) | 2017-06-14 | 2017-06-14 | 一种基于陶瓷增材制造的多孔植入物的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107320220B (zh) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0560418A1 (en) * | 1992-02-27 | 1993-09-15 | Bristol-Myers Squibb Company | Implant having a metallic porous surface and method of making |
US5958314A (en) * | 1994-02-04 | 1999-09-28 | Draenert; Klaus | Process for the preparation of porous material |
CN101148360A (zh) * | 2007-08-14 | 2008-03-26 | 西安交通大学 | 一种梯度多孔结构陶瓷的定制化成型方法 |
WO2008106625A2 (en) * | 2007-02-28 | 2008-09-04 | University Of Notre Dame Du Lac | Porous composite biomaterials and related methods |
CN101491692A (zh) * | 2009-03-03 | 2009-07-29 | 福建师范大学 | 一种钛酸钙纳米管阵列生物活性涂层的制备方法 |
CN101536936A (zh) * | 2009-02-24 | 2009-09-23 | 上海大学 | 一种基于光固化成形的仿生支架多孔结构的制造工艺 |
CN103113112A (zh) * | 2013-02-04 | 2013-05-22 | 西安交通大学 | 一种金属增韧陶瓷基复合材料涡轮叶片的制备方法 |
CN103285426A (zh) * | 2012-02-23 | 2013-09-11 | 湖南迈迪科新材有限公司 | 一种羟基磷灰石内嵌氧化钛纳米管复合涂层及其制备方法 |
CN106390198A (zh) * | 2016-09-19 | 2017-02-15 | 西安交通大学 | 一种选区激光成形及电解还原制备个性化多孔植入物方法 |
CN106421904A (zh) * | 2016-09-19 | 2017-02-22 | 西安交通大学 | 一种凝胶注模3d打印及电解还原制备多孔植入物的方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020169066A1 (en) * | 2001-04-16 | 2002-11-14 | Cerabio, L.L.C. | Dense porous structures for use as bone substitutes |
US20050100578A1 (en) * | 2003-11-06 | 2005-05-12 | Schmid Steven R. | Bone and tissue scaffolding and method for producing same |
-
2017
- 2017-06-14 CN CN201710449043.1A patent/CN107320220B/zh not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0560418A1 (en) * | 1992-02-27 | 1993-09-15 | Bristol-Myers Squibb Company | Implant having a metallic porous surface and method of making |
US5958314A (en) * | 1994-02-04 | 1999-09-28 | Draenert; Klaus | Process for the preparation of porous material |
WO2008106625A2 (en) * | 2007-02-28 | 2008-09-04 | University Of Notre Dame Du Lac | Porous composite biomaterials and related methods |
CN101148360A (zh) * | 2007-08-14 | 2008-03-26 | 西安交通大学 | 一种梯度多孔结构陶瓷的定制化成型方法 |
CN101536936A (zh) * | 2009-02-24 | 2009-09-23 | 上海大学 | 一种基于光固化成形的仿生支架多孔结构的制造工艺 |
CN101491692A (zh) * | 2009-03-03 | 2009-07-29 | 福建师范大学 | 一种钛酸钙纳米管阵列生物活性涂层的制备方法 |
CN103285426A (zh) * | 2012-02-23 | 2013-09-11 | 湖南迈迪科新材有限公司 | 一种羟基磷灰石内嵌氧化钛纳米管复合涂层及其制备方法 |
CN103113112A (zh) * | 2013-02-04 | 2013-05-22 | 西安交通大学 | 一种金属增韧陶瓷基复合材料涡轮叶片的制备方法 |
CN106390198A (zh) * | 2016-09-19 | 2017-02-15 | 西安交通大学 | 一种选区激光成形及电解还原制备个性化多孔植入物方法 |
CN106421904A (zh) * | 2016-09-19 | 2017-02-22 | 西安交通大学 | 一种凝胶注模3d打印及电解还原制备多孔植入物的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN107320220A (zh) | 2017-11-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106421904B (zh) | 一种凝胶注模3d打印及电解还原制备多孔植入物的方法 | |
CN107130138B (zh) | 医用高耐磨钛合金复合材料及3d打印梯度原位纳米复相减磨医用钛合金的方法 | |
CN110607464B (zh) | 一种Ti2AlNb合金粉末的热等静压工艺 | |
CN101575726B (zh) | 含氟羟基磷灰石梯度生物活性膜层的制备方法 | |
CN108504922B (zh) | 一种生物可降解铁锌合金及其制备方法 | |
CN103266319B (zh) | 一种在钛合金表面制备多孔钛涂层的方法 | |
CN106902391A (zh) | 一种镁合金植入体复合材料及其制备与应用 | |
CN105268977A (zh) | 一种钛合金人造生物关节的快速制造方法 | |
CN106390198B (zh) | 一种选区激光成形及电解还原制备个性化多孔植入物方法 | |
CN101455862A (zh) | 一种生物医学组织工程支架用多孔材料的制备方法 | |
CN105522151A (zh) | 一种3d打印医用钛合金材料的方法 | |
CN112500150A (zh) | 一种镁合金/生物陶瓷多孔支架及其制备方法和应用 | |
CN110421173A (zh) | 一种医用可降解的锌基复合材料及其制备方法与应用 | |
WO2017152541A1 (zh) | 一种生物医用复合植入材料及其制备方法 | |
CN110548866A (zh) | 一种表面粗糙的金属粉末、制备方法及在sls/slm技术中的应用 | |
CN114931664A (zh) | 一种均匀降解的功能锌合金多孔骨支架及其制备方法 | |
Wang et al. | Progress in partially degradable titanium-magnesium composites used as biomedical implants | |
CN110037813B (zh) | 一种钛基氧化锆复合材料医疗植入体及其3d打印制备方法 | |
CN107320220B (zh) | 一种基于陶瓷增材制造的多孔植入物的制备方法 | |
CN108166044A (zh) | 一种调控3d打印医用tc4钛合金表面纳米管直径的方法 | |
CN110157936B (zh) | 一种生物医用有序多孔的铸态锌基材料的制备方法 | |
CN112048749A (zh) | 在3d打印的钛或钛合金表面制备生物活性涂层的方法 | |
Liu et al. | Surface modification of porous titanium and titanium alloy implants manufactured by selective laser melting: A review | |
CN106362209B (zh) | 一种光固化成形及电解还原制备个性化多孔植入物的方法 | |
CN107374784B (zh) | 一种基于高分子聚合物增材制造的多孔植入物的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |