Microneedle device
    1.
    发明授权

    公开(公告)号:US11464956B2

    公开(公告)日:2022-10-11

    申请号:US16488456

    申请日:2018-02-20

    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.

    Applicator for applying a sheet member to skin

    公开(公告)号:US11141576B2

    公开(公告)日:2021-10-12

    申请号:US16471290

    申请日:2017-12-15

    IPC分类号: A61M37/00

    摘要: An applicator of one embodiment is for applying a sheet member to skin. The applicator includes: a body including a bottom plate configured to face the skin and a bending portion provided to the bottom plate; a cap being movable along a slide direction substantially orthogonal to the bottom plate; and an elastic member configured to extend along the slide direction between the body and the cap. The elastic member applies, to the cap, elastic force that acts in a direction away from the bottom plate, the cap being movable toward the bottom plate against the elastic force. The bending portion bends the sheet member that has advanced thereto in a pressed state in which the cap has been moved toward the bottom plate, thereby applying the sheet member to the skin.

    Method for producing microneedle device

    公开(公告)号:US11116955B2

    公开(公告)日:2021-09-14

    申请号:US16488450

    申请日:2018-02-20

    IPC分类号: A61M37/00

    摘要: A method for producing a microneedle device having a coating on the microneedles comprises a step A of drying a precursor composition containing a biologically active substance and a first solvent to obtain -a freeze-dried composition, a step B of mixing the freeze-dried composition with a second solvent to obtain a coating composition, and a step C of applying the coating composition to the microneedles and drying the same, wherein the precursor composition further contains a thickener, or a thickener is added when the freeze-dried composition and the second solvent are mixed.

    Applicator
    4.
    发明授权

    公开(公告)号:US10086183B2

    公开(公告)日:2018-10-02

    申请号:US15032709

    申请日:2014-11-04

    IPC分类号: A61M37/00

    摘要: An applicator is configured to transfer an active ingredient into a body through skin by a puncture in the skin with microneedles. The applicator includes a piston plate that is provided with a first protrusion part and second protrusion parts on a lower surface side of a main body of the piston plate. The microneedles are provided on a surface of the first protrusion part. The second protrusion parts are provided in a periphery of the first protrusion part while spaced apart from the first protrusion part.

    Method for producing microneedle device

    公开(公告)号:US11077290B2

    公开(公告)日:2021-08-03

    申请号:US16488450

    申请日:2018-02-20

    IPC分类号: A61M37/00

    摘要: A method for producing a microneedle device having a coating on the microneedles comprises a step A of drying a precursor composition containing a biologically active substance and a first solvent to obtain -a freeze-dried composition, a step B of mixing the freeze-dried composition with a second solvent to obtain a coating composition, and a step C of applying the coating composition to the microneedles and drying the same, wherein the precursor composition further contains a thickener, or a thickener is added when the freeze-dried composition and the second solvent are mixed.