发明授权
- 专利标题： Microneedle device
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申请号： US16488456申请日： 2018-02-20
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公开(公告)号： US11464956B2公开(公告)日： 2022-10-11
- 发明人: Kazuya Machida , Shinpei Nishimura , Seiji Tokumoto
- 申请人： HISAMITSU PHARMACEUTICAL CO., INC.
- 申请人地址： JP Tosu
- 专利权人： HISAMITSU PHARMACEUTICAL CO., INC.
- 当前专利权人： HISAMITSU PHARMACEUTICAL CO., INC.
- 当前专利权人地址： JP Tosu
- 代理机构： Nath, Goldberg & Meyer
- 代理商 Joshua B. Goldberg
- 优先权： JPJP2017-033775 20170224
- 国际申请： PCT/JP2018/005981 WO 20180220
- 国际公布： WO2018/155433 WO 20180830
- 主分类号： A61M37/00
- IPC分类号： A61M37/00 ; A61K9/00 ; A61K9/70
摘要：
A microneedle device of the present invention comprises a substrate, microneedles disposed on the substrate, and a coating layer formed on the microneedles, wherein a length of the microneedles is 300 to 500 μm, the microneedles are disposed on the substrate at a density of 28 to 80 needles/cm2, and the coating layer comprises a biologically active substance. The microneedle device allows the skin irritation caused by administration of an agent to be reduced.
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