Coating, coated articles and methods of manufacture thereof

A coating and coating technology, applied in the fields of coating, prosthesis, medical science, etc., can solve the problems of apatite-implant interface damage, etc., and achieve the effect of good viscosity and good biological reactivity
CN1589161AInactive Publication Date: 2005-03-02美国英佛曼公司
2 Cites 18 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
美国英佛曼公司
Publication Date
2005-03-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A multilayer coating especially suitable for coating implants, such as orthopedic and dental implants, especially metallic implants. The first layer includes a bond coat of a dense material that is insoluble and inert in body fluids. The second layer includes apatite and a binder. The first layer protects the metal implant from corrosion, dissolution of the apatite, and interfacial reactions with the apatite and the adhesive. The apatite in this second layer is a bioactive agent that osseobonds the tissue. Through this adhesive, the coefficient of thermal expansion between the coating and the metal substrate can be adjusted. The multi-layer coating has a high bonding strength to the implant and at the same time has excellent bioactivity to the surrounding body tissue.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] Statement Regarding Federally Funded Research and Development

[0002] This invention was made with support under grant number NIH1R43AR47278-02 awarded by the National Institutes of Health. Accordingly, the US Government has rights in this invention. field of invention

[0003] This invention relates to apatite materials, and more particularly to coatings containing apatite. Background of the invention

[0004] Synthetic apatites, including hydroxyapatite (HA), Ca 10 (PO 4 ) 6 (OH) 2 , fluoroapatite Ca 10 (PO 4 ) 6 f 2 , or hydroxyfluoroapatite Ca 10 (PO 4 ) 6 (OH) 2-x f x (x<1) has the same biological apatite (Ca 10-x (HPO 4 ) x (OH) 2-x ) similar composition, while bioapatite is the main component of hard tissues such as bone. Due at least in part to their excellent osteoconductivity, apatites are used as coatings on metallic implants or prostheses (eg, prosthetic hips) in biofixation. This apatite coating has two interfaces, one with the tiss...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More