JP2011502579A5 - 多孔質貯蔵部および非ポリマー拡散層を備えた内部人工器官及びその形成方法 - Google Patents

多孔質貯蔵部および非ポリマー拡散層を備えた内部人工器官及びその形成方法 Download PDF

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Publication number
JP2011502579A5
JP2011502579A5 JP2010532278A JP2010532278A JP2011502579A5 JP 2011502579 A5 JP2011502579 A5 JP 2011502579A5 JP 2010532278 A JP2010532278 A JP 2010532278A JP 2010532278 A JP2010532278 A JP 2010532278A JP 2011502579 A5 JP2011502579 A5 JP 2011502579A5
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Prior art keywords
porous layer
endoprosthesis
ceramic
pore diameter
drug
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JP2010532278A
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JP2011502579A (ja
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Priority claimed from US11/934,353 external-priority patent/US20090118821A1/en
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Publication of JP2011502579A publication Critical patent/JP2011502579A/ja
Publication of JP2011502579A5 publication Critical patent/JP2011502579A5/ja
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Claims (11)

  1. 表面と、
    前記表面上において第1セラミックから形成された第1多孔質層であって薬剤を含有する第1多孔質層と、
    前記第1多孔質層上において第2セラミックまたは金属から形成された第2多孔質層と、を備え
    前記第2多孔質層は前記第1多孔質層よりも低い空隙率を有するとともに前記第2多孔質層の細孔径は、前記第1多孔質層の細孔径よりも小さい、内部人工器官。
  2. 前記第2多孔質層の厚さは、1〜500nmである、請求項1に記載の内部人工器官。
  3. 前記第1多孔質層の厚さは、0.1〜3μm(ミクロン)である、請求項1に記載の内部人工器官。
  4. 前記表面は、ステント本体の表面である、請求項1に記載の内部人工器官。
  5. 前記第2多孔質層は、金属から形成されている、請求項1に記載の内部人工器官。
  6. 前記第1多孔質層および前記第2多孔質層は、ポリマーを含まない薬物送達システムを形成する、請求項1に記載の内部人工器官。
  7. 前記第2セラミックは、酸化イリジウムである、請求項に記載の内部人工器官。
  8. 前記第2セラミックは、滑らかな球状のモルフォロジーを有する、請求項に記載の内部人工器官。
  9. 前記第2セラミックは前記第1セラミックとは異なる、請求項に記載の内部人工器官。
  10. 内部人工器官を形成する方法であって、
    前記内部人工器官上に第1多孔質層を形成することと、
    前記第1多孔質層に薬剤を導入することと、
    前記薬剤を含有した第1多孔質層の上に、セラミックまたは金属の第2多孔質層を形成することと、を含み、
    前記第2多孔質層は前記第1多孔質層よりも低い空隙率を有するとともに前記第2多孔質層の細孔径は、前記第1多孔質層の細孔径よりも小さい、方法。
  11. 前記第1多孔質層をゾル−ゲル法又はナノクラスター堆積過程によって形成することを含む、請求項10に記載の方法。
JP2010532278A 2007-11-02 2008-10-31 多孔質貯蔵部および非ポリマー拡散層を備えた内部人工器官 Pending JP2011502579A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/934,353 US20090118821A1 (en) 2007-11-02 2007-11-02 Endoprosthesis with porous reservoir and non-polymer diffusion layer
PCT/US2008/081986 WO2009059129A2 (en) 2007-11-02 2008-10-31 Endoprosthesis with porous reservoir and non-polymer diffusion layer

Publications (2)

Publication Number Publication Date
JP2011502579A JP2011502579A (ja) 2011-01-27
JP2011502579A5 true JP2011502579A5 (ja) 2012-03-08

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US (1) US20090118821A1 (ja)
EP (1) EP2214741A2 (ja)
JP (1) JP2011502579A (ja)
WO (1) WO2009059129A2 (ja)

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