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Ductile coating for an implant component

A technology of implants and components, applied in coatings, medical science, prostheses, etc., can solve problems such as aseptic loosening of implant components, repair of implants, allergic reactions, etc.

Pending Publication Date: 2021-11-30
WALDEMAR LINK GMBH & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, especially nitride coatings can only be used for this purpose to a limited extent, since nitride coatings are not only relatively hard but also relatively brittle
As a result, plastic deformation of implant components provided with a nitride coating can lead to damage to the coating
As a result, increased amounts of metal ions, metal oxides, organometallic phosphates, and small metal particles may be released and may cause pain, aseptic loosening of implant components, or negative effects on surrounding tissues
This can also lead to an allergic reaction, which may also require a revision implant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] As mentioned above, a coating in the context of the present invention is understood to mean a coating used by a technical method. Examples of such technical methods are chemical vapor deposition (CVD), physical vapor deposition (PVD) or galvanic coating methods.

[0051] As mentioned above, the coating according to the invention comprises a mixture of titanium-niobium coatings doped with silver (TiNb-Ag coating). In other words, the coating has at least one single layer of titanium-niobium coating in which silver is embedded. Here, the silver is present in particular in the form of silver islands, ie silver or silver atoms are arranged next to the TiNb lattice.

[0052] Due to the size of the silver atoms, it is assumed that only a small fraction of the silver, if any, is arranged interstitially within the TiNb lattice. Instead, silver was observed to exist in the TiNb-Ag coating in the form of silver aggregates. In other words, silver is substantially not integrated...

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Abstract

The invention relates to a coating for an implant component, a method for producing an implant component having said coating, and a use of said coating on an implant coating. The coating is intended for an implant component, in particular a spinal implant component, and is a TiNb coating which contains, in addition to an atom % proportion of Ti and an atom % proportion of Nb an atom % proportion of 5-30 atom % of Ag.

Description

technical field [0001] The present invention relates to implant components with a TiNb-Ag coating, to methods for the application of such coatings and to the use of such coatings on implants. Background technique [0002] One reason for implant failure in situ is pathogen infection. This pathogen is mainly staphylococci (Staphylococci) parasitic on human skin and mucous membranes, such as Staphylococcus epidermidis (Staphylococcus usepidermidis). Furthermore, pathogens such as Staphylococcus epidermidis, among others, can colonize implant surfaces using biofilms. Thus, this biofilm protects pathogens from antibiotics, phagocytes, and other immune responses of the body. [0003] Studies have shown, for example, that Staphylococcus epidermidis is a common cause of post-operative infections following implant placement. When a postoperative infection is diagnosed, it is usually first attempted to suppress the infection with active substances (eg, antibiotics). If this is uns...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/30A61L27/42A61L31/08A61L31/12
CPCA61L27/306A61L27/427A61L31/088A61L31/124A61L2300/104A61L2300/404A61L2300/606A61L2420/02A61L2420/06A61L2420/04A61L27/54A61L31/16A61L2430/38C22C14/00C23C14/022C23C14/14C23C14/28
Inventor H·D·林克理查德·卡萨扎尔
Owner WALDEMAR LINK GMBH & CO
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