发明名称 |
MICRONEEDLE ARRAYS AND METHODS OF PREPARING SAME |
摘要 |
A microneedle array having a substrate and a plurality of microneedles extending out from the substrate with a multi-phase matrix coating on at least a portion of the microneedle surface of the microneedle array. The multi-phase matrix coating comprises an active substance and has a first solid phase and a liquid phase. The first solid phase comprises a water-soluble polymer. Also, a method of providing an active substance- containing matrix coating on a microneedle array in which a water-soluble polymer is applied to the microneedle surface of the array to form a dried coating of water-soluble polymer. A coating solution comprising an active substance, a liquid capable of phase separating from the water-soluble polymer, and a carrier fluid is prepared and applied to the dried coating of water-soluble polymer. At least a portion of the carrier fluid is removed from the array. |
申请公布号 |
WO2007059289(A1) |
申请公布日期 |
2007.05.24 |
申请号 |
WO2006US44551 |
申请日期 |
2006.11.17 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY;DUAN, DANIEL C.;JOHNSON, PETER R. |
发明人 |
DUAN, DANIEL C.;JOHNSON, PETER R. |
分类号 |
A61M37/00;A61M31/00 |
主分类号 |
A61M37/00 |
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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