发明申请
- 专利标题: COATED MEDICAL IMPLANT
- 专利标题(中): 涂层医疗植物
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申请号: US13640507申请日: 2011-04-12
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公开(公告)号: US20130030361A1公开(公告)日: 2013-01-31
- 发明人: Maria Astrand , Hakan Engqvist
- 申请人: Maria Astrand , Hakan Engqvist
- 申请人地址: SE Sandviken
- 专利权人: Sandvik Intellectual Property AB
- 当前专利权人: Sandvik Intellectual Property AB
- 当前专利权人地址: SE Sandviken
- 优先权: SE1000362-2 20100412; SE1000363-0 20100412
- 国际申请: PCT/SE11/50444 WO 20110412
- 主分类号: A61M5/00
- IPC分类号: A61M5/00 ; C23C16/40
摘要:
The present invention relates to a coated medical implant wherein the coating comprises an amorphous Me oxide layer or an (Al, Me) oxide layer deposited by physical vapor deposition, and wherein Me can be one or more of the elements of Ti, Si, Cr, Hf, Zr, Ta or Nb. The PVD layer does not have any bioactive/osseointegrating properties at temperatures below 45° C. This makes it easy to remove the implant after it has being inserted in an animal or human body, e.g. when used for fixating fractures. The coating may further comprise a calcium phosphate layer, preferably a hydroxyapatite layer, which is grown on the PVD layer using a biomimetic process. The coating may be loaded with a releasable agent such as a pharmaceutical agent, an ion or a bio molecule. The present invention also relates to a method for forming the coated medical implant.
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