Method for producing titanium alloy artificial hip joint with abrasion-proof ceramic coat

A technology of wear-resistant ceramics and manufacturing methods, which is applied in the direction of hip joints, joint implants, joint implants, etc., can solve the problems of low bonding strength between the film and the substrate, poor wear resistance and durability, and poor mechanical bearing capacity. Achieve the effect of avoiding galvanic corrosion, prolonging service life and good friction reduction
CN101347358BInactive Publication Date: 2012-04-25HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2012-04-25
Estimated Expiration
Not applicable Β· inactive patent

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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.
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Description

technical field

[0001] The invention relates to a manufacturing method of a titanium alloy artificial hip joint. Background technique

[0002] Artificial hip replacement has become an effective treatment for hip joint disease. However, during normal activities of the human body, due to the mechanical load and the friction of relative motion, the femoral head implant usually wears or causes the wear of the dual articular cartilage. Although the ceramic femoral head has good wear resistance, its toughness is low, its quality is brittle, and its ability to withstand impact loads is poor, so its application is limited. Titanium alloy has excellent biocompatibility and is being used as a femoral head material, but its hardness is low and its wear resistance is poor. The authorized announcement number is CN86202828, and the authorized announcement date is September 2, 1987. The utility model patent disclosed "broad-beam mixed ion implantation of titanium alloy artificial total h...

Claims

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