CN101347358B - Method for producing titanium alloy artificial hip joint with abrasion-proof ceramic coat - Google Patents
Method for producing titanium alloy artificial hip joint with abrasion-proof ceramic coat Download PDFInfo
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- CN101347358B CN101347358B CN 200810137090 CN200810137090A CN101347358B CN 101347358 B CN101347358 B CN 101347358B CN 200810137090 CN200810137090 CN 200810137090 CN 200810137090 A CN200810137090 A CN 200810137090A CN 101347358 B CN101347358 B CN 101347358B
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- China
- Prior art keywords
- titanium alloy
- ceramic coat
- abrasion
- electrolyte
- proof ceramic
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Classifications
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- 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
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The invention relates to a manufacturing method of a titanium alloy artificial hip joint provided with a wear-resistant ceramic coat, which relates to the titanium alloy artificial hip joint and the manufacturing method thereof. The invention solves the problems existing in the existing caput femoris provided with a film of thin film thickness, low bonding strength of the film and a matrix, poor mechanical bearing strength and bad wear resistance and durable stability. The wear-resistant ceramic coat is coated on the spherical surface of the titanium alloy caput femoris and the surface of a titanium alloy articulation coax cup. A cylindrical slot that has fit connection with a femur handle is arranged on the upper end surface of the titanium alloy caput femoris. The method of the invention is that the joint is polished, shielded, installed and blocked; then the joint is processed by spark intensifying electrochemical oxidation to produce the wear-resistant ceramic coat; the joint is taken out, cleaned and dried; and finally, the surface of the joint is processed by polishing treatment. The artificial hip joint of the invention has the advantages of thick caput femoris film, strong bonding strength of the film and the matrix, good mechanical bearing strength and sound wear resistance and durable stability, etc. And the manufacturing method of the invention has simple process flows.
Description
Technical field
The present invention relates to a kind of manufacturing approach of titanium alloy artificial hip joint.
Background technology
Replacement of Hip Joint has become a kind of efficacious therapy method of treatment hip joint disease.But when the human body normal activity, because under the rubbing action of mechanical loading and relative motion, the femoral head implant can produce wearing and tearing usually or cause the wearing and tearing of antithesis articular cartilage.Though pottery femoral head anti-wear performance is good, the toughness low-quality is crisp, and the load performance that withstands shocks is poor, and application is restricted.Titanium alloy has good biocompatibility, be employed as the femoral head material, but its hardness is low, wears no resistance.Granted publication number is that the utility model patent disclosed " the wide beam hybrid ionic injects the titanium alloy artificial full hip-joint " on JIUYUE 2nd, 1987 is with wide beam hybrid ionic (N for CN86202828, Granted publication day
++ N
+ 2) be that 50KeV～100KeV, dosage are 10 at energy
16/ cm
2～10
18/ cm
2In the scope titanium alloy is carried out the vertical injection, formed high rigidity TiN thin layer on the surface; Granted publication number for CN1715439A, Granted publication day be purpose patent of invention January 4 in 2006 disclosed " method for making of titanium alloy artificial joint head surface titanium oxide to titanium nitride gradient wear resistant layer " with comprehensive ion implantation apparatus to the first high target temperature injecting nitrogen ion of titanium alloy ball and socket joint; The target temperature is 600 ℃～700 ℃, and implantation dosage is 10
17/ cm
2～10
18/ cm
2The sample that then first step is injected high dose again injects oxonium ion, and the target temperature is room temperature～300 ℃, and implantation dosage is 10
18/ cm
2～10
19/ cm
2, get titanium oxide surface-titanium nitride gradient film titanium alloy ball and socket joint sample.More than two patents adopt the ganoine thin film of ion implantation preparation all to strengthen capital wearability, alleviated the wearing and tearing of cartilage material (UHMWPE).But the above-mentioned femoral head that has thin layer exists, and film thickness is thin, thin film and substrate combinating strength is low, the defective of mechanics bearing capacity difference and wear-resisting lasting stability property difference.Therefore on the harsh femoral head of instructions for use, be difficult to obtain good effect.
Summary of the invention
The objective of the invention is to have in order to solve the existing femoral head that has thin layer that film thickness is thin, thin film and substrate combinating strength is low, the problem of mechanics bearing capacity difference and wear-resisting lasting stability property difference, and then a kind of manufacturing approach of the titanium alloy artificial hip joint with abrasion-proof ceramic coat is provided.
The titanium alloy hip cup that the titanium alloy artificial hip joint of band abrasion-proof ceramic coat of the present invention comprises the titanium alloy femoral head and cooperates with its antithesis; Said hip joint also comprises abrasion-proof ceramic coat; Said abrasion-proof ceramic coat is coated on the capital sphere of titanium alloy on the surface with titanium alloy hip cup, has the cylindrical groove that is connected with strand handle on the capital upper surface of said titanium alloy.
The manufacturing approach of the titanium alloy artificial hip joint of band abrasion-proof ceramic coat of the present invention is to accomplish like this: step 1, the titanium alloy femoral head and the titanium alloy hip cup of ceramic treatment are distinguished sanding and polishing to minute surface in advance; Two anchor clamps are installed on respectively on the bottom surface of the cylindrical groove on the titanium alloy femoral head upper surface with titanium alloy hip cup on; And the cylindrical groove on the titanium alloy femoral head upper surface filled with the insulation shielding object; Simultaneously an anode contact wire is embedded in the insulation shielding object; And the anode contact wire is connected with anchor clamps on the cylindrical groove bottom surface, and another root anode contact wire is connected with anchor clamps on the titanium alloy hip cup; Step 2, the titanium alloy femoral head that will clamp and titanium alloy hip cup are as anode; Place electrolyte to carry out spark respectively and strengthen electrochemical oxidation; Corrosion resistant plate is as negative electrode; Temperature＜50 through cooling system control electrolyte in oxidizing process ℃ adopt the bipolar pulse power supply to produce abrasion-proof ceramic coat with the disruptive discharge of titanium alloy surface, and the thickness of coating is 6 μ m～40 μ m; Step 3, will take out, and remove insulation shielding object, anchor clamps and anode contact wire with the titanium alloy femoral head of abrasion-proof ceramic coat and titanium alloy hip cup; The titanium alloy femoral head of step 4, cleaning tape abrasion-proof ceramic coat and titanium alloy hip cup; The titanium alloy femoral head of step 5, dry zone abrasion-proof ceramic coat and titanium alloy hip cup; Step 6, titanium alloy femoral head and the titanium alloy hip cup of band abrasion-proof ceramic coat carried out surface finish handle, remove outmost surface porosity and looseness layer, obtain smooth ceramic coating, the thickness of coating is 5 μ m～30 μ m.
The present invention compared with prior art has following beneficial effect: one, the present invention has the titanium alloy femoral head of abrasion-proof ceramic coat, and its titanium oxide surface ceramic coating strengthens capital wearability; Improve biocompatibility and decay resistance again, the present invention substitutes Co-Cr-Mo alloy femoral head with the titanium alloy femoral head of band wear-resistant ceramic layer, has avoided the galvanic corrosion problem that causes because of potential difference between titanium alloy thigh handle and Co-Cr-Mo alloy femoral head dissimilar metal; The titanium alloy hip cup of the present invention and femoral head antithesis also adopts titanium alloy; Same its outer surface growth ceramic coating, two antithesis surface is growing nano titanium oxide bioceramic all, and the antifriction quality of titanium oxide own is good; In addition; Titania coating and joint fluid wettability are good, and surface pit slightly helps storing lubricating fluid, improves the contact lubricated state of antithesis friction surface; Effectively reduce the joint friction to subsidiary wearing and tearing, prolong the service life that femoral head and titanium alloy hip cup are planted body; Two, the present invention has the titanium alloy femoral head and the titanium alloy hip cup of abrasion-proof ceramic coat; The method for preparing of its titanium oxide surface ceramic coating is an electrochemical oxidation process; Be that erose femoral head of sphere or titanium alloy hip cup are placed electrolyte; Produce ceramic coating through the even spark discharge effect in surface original position, be coated with the restriction that layer growth evenly and not receives size and shape; Three, the present invention has the titanium alloy femoral head and the titanium alloy hip cup of abrasion-proof ceramic coat; Its outer surface ceramic coating is after grinding and polishing is handled, and fine and close slick interior working lining thickness is 5～30 microns, and bearing capacity is high; And obviously reduce coefficient of friction; The femoral head mantle friction test surperficial polishing scratch in back and the pears ditch of no ceramic coating are a lot, and the very smooth no wear trace in surface of band ceramic layer, the titanium alloy joint that the present invention has abrasion-proof ceramic coat can effectively reduce the surperficial wearing and tearing of friction pair; Four, electrochemical oxidation growth ceramic coating technology is clean and pollution-free; To goods mechanical property not damaged; Technology allows disposable processing accumulation large tracts of land goods; Therefore can realize that femoral head is once produced in batches, the ceramic coating of growth can use after only needing surperficial grinding and polishing to handle, and technological process is simple, economic, practical.
Description of drawings
Fig. 1 is the overall structure sketch map of the titanium alloy artificial hip joint of band abrasion-proof ceramic coat of the present invention; Fig. 2 is the electrochemical oxidation titanium alloy femoral head of the present invention sketch map that in electrolysis bath, is installed, and Fig. 3 is the electrochemical oxidation titanium alloy hip cup of the present invention sketch map that in electrolysis bath, is installed.
The specific embodiment
The specific embodiment one: combine Fig. 1 that this embodiment is described; The titanium alloy hip cup 4 that this embodiment comprises titanium alloy femoral head 5 and cooperates with its antithesis; Said hip joint also comprises abrasion-proof ceramic coat 2; Said abrasion-proof ceramic coat 2 is coated on the sphere of titanium alloy femoral head 5 on the surface with titanium alloy hip cup 4, has the cylindrical groove 3 that is connected with strand handle on the upper surface of said titanium alloy femoral head 5.
The specific embodiment two: combine Fig. 2 and Fig. 3 that this embodiment is described; The manufacturing approach of the titanium alloy artificial hip joint of the band abrasion-proof ceramic coat of this embodiment is to accomplish like this: step 1, the titanium alloy femoral head 5 and the titanium alloy hip cup 4 of ceramic treatment are distinguished sanding and polishings to minute surface in advance; Two anchor clamps 7 are installed on respectively on the bottom surface of the cylindrical groove 3 on titanium alloy femoral head 5 upper surfaces with titanium alloy hip cup 4 on; And with 8 fillings of the 3 usefulness insulation shielding objects of the cylindrical groove on titanium alloy femoral head 5 upper surfaces; Simultaneously an anode contact wire 6 is embedded in the insulation shielding object 8; And anode contact wire 6 is connected with anchor clamps 7 on cylindrical groove 3 bottom surfaces, and another root anode contact wire 6 is connected with anchor clamps 7 on the titanium alloy hip cup 4; Step 2, the titanium alloy femoral head 5 that will clamp and titanium alloy hip cup 4 are as anode; Place electrolyte 9 to carry out spark respectively and strengthen electrochemical oxidation; Corrosion resistant plate is as negative electrode; Temperature＜50 through cooling system control electrolyte 9 in oxidizing process ℃ adopt the bipolar pulse power supply to produce abrasion-proof ceramic coat 2 with the disruptive discharge of titanium alloy surface, and the thickness of coating is 6 μ m～40 μ m; Step 3, will take out, and remove insulation shielding object 8, anchor clamps 7 and anode contact wire 6 with the titanium alloy femoral head 5 of abrasion-proof ceramic coat 2 and titanium alloy hip cup 4; The titanium alloy femoral head 5 of step 4, cleaning tape abrasion-proof ceramic coat 2 and titanium alloy hip cup 4; The titanium alloy femoral head 5 of step 5, dry zone abrasion-proof ceramic coat 2 and titanium alloy hip cup 4; Step 6, titanium alloy femoral head 5 and the titanium alloy hip cup 4 of band abrasion-proof ceramic coat 2 carried out surface finish handle, remove outmost surface porosity and looseness layer, obtain smooth ceramic coating, the thickness of coating is 5 μ m～30 μ m.
The specific embodiment three: combine Fig. 2 that this embodiment is described, this embodiment with the difference of the specific embodiment two is: this embodiment is processed by aluminium alloy or titanium alloy material at anchor clamps described in the step 17.Make anchor clamps closely contact with titanium alloy hip cup 4, avoided under the electrion situation, ablating because of loose contact causes contact point with titanium alloy femoral head 5.
The specific embodiment four: combine Fig. 2 that this embodiment is described; The difference of this embodiment and the specific embodiment two is: this embodiment is formulated by calcic or phosphorated electrolyte and deionized water at electrolyte described in the step 29; The quality proportioning of said electrolyte and deionized water is (5～50): 1000, and the calcic electrolyte is calcium acetate or calcium oxalate; Phosphorous electrolyte is sodium dihydrogen phosphate, dibastic sodium phosphate, sodium hexameta phosphate or sodium glycerophosphate.Above-mentioned electrolyte does not contain harmful ion, gets into these calcics and phosphorus substance tool biocompatibility in the coating through micro-arc discharge.
The specific embodiment five: combine Fig. 2 that this embodiment is described; This embodiment with the difference of the specific embodiment four is: this embodiment is formulated by calcic or phosphorated electrolyte, pH value regulator and deionized water at electrolyte described in the step 29; The quality proportioning of said electrolyte, pH value regulator and deionized water is (2～10): 1000, and the calcic electrolyte can be calcium acetate or calcium oxalate; Phosphorous electrolyte can be sodium dihydrogen phosphate, dibastic sodium phosphate, sodium hexameta phosphate or sodium glycerophosphate, and the pH value regulator is NaOH.The pH value of adjustment electrolyte.
The specific embodiment six: combine Fig. 2 that this embodiment is described; This embodiment with the difference of the specific embodiment two is: this embodiment is 400V～600V in the pulse voltage of the power supply of bipolar pulse described in the step 2; Frequency is 400Hz～800Hz, and dutycycle is 4%～20%.Electrical quantity is controlled in the above-mentioned scope, and micro-arc discharge is even, and coating fast growth, quality are good.
The specific embodiment seven: combine Fig. 2 that this embodiment is described, this embodiment with the difference of the specific embodiment two is: this embodiment is 0.4 μ m～0.6 μ m in the surface roughness Ra of abrasion-proof ceramic coat described in the step 62.Fine and close slick coating obviously reduces coefficient of friction, improves the anti-wear performance on titanium alloy femoral head and titanium alloy hip cup antithesis surface, prolongs the service life of implant.
Claims (6)
1. manufacturing approach with the titanium alloy artificial hip joint of abrasion-proof ceramic coat; The step that it is characterized in that said method is: step 1, distinguish sanding and polishing to the preparatory titanium alloy femoral head (5) of ceramic treatment to minute surface with titanium alloy hip cup (4); Two anchor clamps (7) are installed on respectively on the bottom surface of the cylindrical groove (3) on titanium alloy femoral head (5) upper surface with titanium alloy hip cup (4) on; And the cylindrical groove (3) on titanium alloy femoral head (5) upper surface filled with insulation shielding object (8); Simultaneously an anode contact wire (6) is embedded in the insulation shielding object (8); And anode contact wire (6) is connected with anchor clamps (7) on cylindrical groove (3) bottom surface, and another root anode contact wire (6) is connected with anchor clamps (7) on the titanium alloy hip cup (4); Step 2, the titanium alloy femoral head (5) that will clamp and titanium alloy hip cup (4) are as anode; Place electrolyte (9) to carry out spark respectively and strengthen electrochemical oxidation; Corrosion resistant plate is as negative electrode; Temperature＜50 through cooling system control electrolyte (9) in oxidizing process ℃ adopt the bipolar pulse power supply to produce abrasion-proof ceramic coat (2) with the disruptive discharge of titanium alloy surface, and the thickness of coating is 6 μ m～40 μ m; Step 3, will take out, and remove insulation shielding object (8), anchor clamps (7) and anode contact wire (6) with the titanium alloy femoral head (5) of abrasion-proof ceramic coat (2) and titanium alloy hip cup (4); The titanium alloy femoral head (5) of step 4, cleaning tape abrasion-proof ceramic coat (2) and titanium alloy hip cup (4); The titanium alloy femoral head (5) of step 5, dry zone abrasion-proof ceramic coat (2) and titanium alloy hip cup (4); Step 6, titanium alloy femoral head (5) and the titanium alloy hip cup (4) of band abrasion-proof ceramic coat (2) carried out surface finish handle, removal outmost surface porosity and looseness layer obtains smooth ceramic coating, and the thickness of coating is 5 μ m～30 μ m.
2. according to the manufacturing approach of the titanium alloy artificial hip joint of the said band abrasion-proof ceramic coat of claim 1, it is characterized in that: process by aluminium alloy or titanium alloy material at anchor clamps described in the step 1 (7).
3. according to the manufacturing approach of the titanium alloy artificial hip joint of the said band abrasion-proof ceramic coat of claim 1; It is characterized in that: formulated by calcic or phosphorated electrolyte and deionized water at electrolyte described in the step 2 (9); The quality proportioning of said electrolyte and deionized water is (5～50): 1000, and the calcic electrolyte is calcium acetate or calcium oxalate; Phosphorous electrolyte is sodium dihydrogen phosphate, dibastic sodium phosphate, sodium hexameta phosphate or sodium glycerophosphate.
4. according to the manufacturing approach of the titanium alloy artificial hip joint of the said band abrasion-proof ceramic coat of claim 1; It is characterized in that: formulated by calcic or phosphorated electrolyte, pH value regulator and deionized water at electrolyte described in the step 2 (9); The quality proportioning of said electrolyte and deionized water is (5～50): 1000; The quality proportioning of said pH value regulator and deionized water is (2～10): 1000, and the calcic electrolyte can be calcium acetate or calcium oxalate; Phosphorous electrolyte can be sodium dihydrogen phosphate, dibastic sodium phosphate, sodium hexameta phosphate or sodium glycerophosphate, and the pH value regulator is NaOH.
5. according to the manufacturing approach of the titanium alloy artificial hip joint of the said band abrasion-proof ceramic coat of claim 1; It is characterized in that: the pulse voltage at the power supply of bipolar pulse described in the step 2 is 400V～600V; Frequency is 400Hz～800Hz, and dutycycle is 4%～20%.
6. according to the manufacturing approach of the titanium alloy artificial hip joint of the said band abrasion-proof ceramic coat of claim 1, it is characterized in that: the surface roughness Ra at abrasion-proof ceramic coat described in the step 6 (2) is 0.4 μ m～0.6 μ m.
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| CN 200810137090 CN101347358B (en) | 2008-09-10 | 2008-09-10 | Method for producing titanium alloy artificial hip joint with abrasion-proof ceramic coat |
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|---|---|---|---|
| CN 200810137090 CN101347358B (en) | 2008-09-10 | 2008-09-10 | Method for producing titanium alloy artificial hip joint with abrasion-proof ceramic coat |
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| CN101347358A CN101347358A (en) | 2009-01-21 |
| CN101347358B true CN101347358B (en) | 2012-04-25 |
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Families Citing this family (10)
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| FR2958533B1 (en) * | 2010-04-08 | 2012-03-23 | Jean Claude Cartillier | RANGE OF COTYLOID IMPLANTS OF DIFFERENT SIZES |
| CN101947149B (en) * | 2010-10-08 | 2013-01-02 | 李亚东 | Artificial hip joint consisting of multilayer shell core composite structural components |
| CN104546226A (en) * | 2013-10-11 | 2015-04-29 | 浙江一火科技有限公司 | Artificial hip joint and manufacturing method thereof |
| CN104840275B (en) * | 2015-05-22 | 2017-10-27 | 中奥汇成科技股份有限公司 | A kind of artificial hip joint |
| CN106109059A (en) * | 2016-08-05 | 2016-11-16 | 北京爱康宜诚医疗器材有限公司 | Borrowed structure |
| DE102017112596B4 (en) * | 2017-06-08 | 2020-06-18 | Carcoustics Techconsult Gmbh | Polyurethane molded part with integrated assembly aid, process for its production and process for its assembly |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
| CN107595440B (en) * | 2017-09-29 | 2020-05-29 | 北京爱康宜诚医疗器材有限公司 | Acetabular prosthesis |
| CN113500194B (en) * | 2021-06-17 | 2023-06-20 | 西安理工大学 | Preparation method of tantalum bone implant with ordered hierarchical pore structure |
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| US5152795A (en) * | 1990-04-25 | 1992-10-06 | Spire Corporation | Surgical implants and method |
| CN1031040C (en) * | 1989-11-16 | 1996-02-21 | 齐齐哈尔轻工学院 | Biological active coating-Ti alloy man-made bone, joint and its preparation |
| CN1234647C (en) * | 1998-03-19 | 2006-01-04 | 生物材料系统有限公司 | Composition, manufacturing, and use of silicon nitride as a biomaterial for medical purpose |
| CN100372807C (en) * | 2006-09-01 | 2008-03-05 | 哈尔滨医科大学 | Shaping method of nanometer bioceramic artificial joint |
-
2008
- 2008-09-10 CN CN 200810137090 patent/CN101347358B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031040C (en) * | 1989-11-16 | 1996-02-21 | 齐齐哈尔轻工学院 | Biological active coating-Ti alloy man-made bone, joint and its preparation |
| US5152795A (en) * | 1990-04-25 | 1992-10-06 | Spire Corporation | Surgical implants and method |
| CN1234647C (en) * | 1998-03-19 | 2006-01-04 | 生物材料系统有限公司 | Composition, manufacturing, and use of silicon nitride as a biomaterial for medical purpose |
| CN100372807C (en) * | 2006-09-01 | 2008-03-05 | 哈尔滨医科大学 | Shaping method of nanometer bioceramic artificial joint |
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