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Anti-microbial implant coating

A technology of implants and coatings, applied in coatings, metal material coating processes, tissue regeneration, etc., can solve problems such as allergic reactions

Inactive Publication Date: 2020-12-15
WALDEMAR LINK GMBH & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chromium nitride is classified as sensitizing, therefore, there is a risk of allergic reactions following implantation
Furthermore, the coating disclosed in US2009 / 0198343 A1 has only a very limited effect on the colonization of Staphylococcus epidermidis

Method used

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Examples

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Embodiment Construction

[0041] In the context of the present invention, a coating is to be understood as a coating applied by a technical process. Examples of these technical processes are chemical vapor deposition (CVD), physical vapor deposition (PVD) or electroplating.

[0042] As mentioned above, the coating according to the invention comprises a mixture of titanium nitride and silver, also referred to herein as a titanium nitride / silver coating. That is, the coating comprises at least one single layer of ceramic titanium nitride coating with silver embedded therein. Silver exists in the form of silver islands, ie, silver or silver atoms are arranged next to the titanium nitride lattice. Due to the size of the silver atoms, it is assumed that only a small fraction, if any, of the silver interstitials are arranged in the titanium nitride lattice. In contrast, silver was observed to exist in the titanium nitride / silver coating in the form of silver agglomerates. That is, silver is present in the...

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Abstract

The invention relates to a coating for an implant component, in particular for a component of a spinal implant. The coating is a ceramic titanium nitride coating which has 5-30 at% Ag in addition to an at% content Ti and an at% content N.

Description

technical field [0001] The present invention relates to a coating for implants, a method for applying the coating and the use of the coating on implants. Background technique [0002] One of the reasons for the failure of orthotopic implantation is pathogenic infection. In particular, pathogens that can cause this failure are Staphylococci, such as Staphylococcus epidermidis. They colonize human skin and mucous membranes. In particular, the S. epidermidis pathogen also has the ability to colonize implant surfaces, for example, in the form of biofilms. In this biofilm, the pathogen is protected from antibiotics, phagocytes and other immune responses of the body. There is evidence that S. epidermidis is a common cause of postoperative infection following implant placement. [0003] If such an infection is detected, attempts are usually made to suppress it with active substances such as antibiotics. However, if this procedure is unsuccessful, it may be necessary to remove ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/04A61L27/06A61L27/10A61L27/30A61L27/54
CPCA61L27/047A61L27/06A61L27/10A61L27/306A61L27/54A61L2300/104A61L2300/404A61L2300/606A61L2420/02A61L2420/06A61L2430/38C23C14/022C23C14/0641C23C14/26
Inventor H·D·林克理查德·卡萨扎尔
Owner WALDEMAR LINK GMBH & CO
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