发明名称 |
A PEEK MEDICAL IMPLANT AND A METHOD OF FORMATION OF SURFACE LAYERS ON MEDICAL IMPLANTS |
摘要 |
The subject of the invention is a medical implant, in particular an element of a mechanical heart valve, made from polyetheretherketone, characterised in that it has a gradient surface layer (2), comprising the following coatings from the base of the implant:
- an amorphous hydrogenated nitrogen doped carbon coating ( 3)
- a-C:N:H ;
- an amorphous or amorphous-nanocrystalline hydrogenated nitrogen and silicon doped carbon coating (4) - a-C:N:H(Si) or C:N:H(Si);
- an amorphous or nanocrystalline or amorphous-nanocrystalline silicon carbonitride coating (5) - a-SiCN(H) or SiCN(H)
wherein the surface layer (2) comprising the coatings (3, 4, 5) is formed through argon Ar + ion etching in an atmosphere containing precursors of carbon, nitrogen, silicon and argon as carrier gas in the temperature within the range between 22°C and 100°C, at pressure in a working chamber within the range between 0.1 and 2 milibar with the use of chemical vapour deposition from gas phase with the use of chemical reactions with the use of current-generated plasma or microwave-generated plasma. |
申请公布号 |
EP2526977(B1) |
申请公布日期 |
2014.02.26 |
申请号 |
EP20120153261 |
申请日期 |
2012.01.31 |
申请人 |
FUNDACJA ROZWOJU KARDIOCHIRURGII IM. PROF. ZBIGNIEWA RELIGI |
发明人 |
WIERZCHON, TADEUSZ;DALCZYNSKA-JONAS, STANISLAWA;TKACZ-SMIECH, KATARZYNA;BOROWSKI, TOMASZ;GONSIOR, MALGORZATA;KUSTOSZ, ROMAN |
分类号 |
A61L27/18;A61F2/24;A61L27/30 |
主分类号 |
A61L27/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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