公开(公告)号：US20170105928A1

公开(公告)日：2017-04-20

申请号：US15105465

申请日：2016-03-28

Applicant: JUVIC INC.

Inventor： Hyung IL JUNG ,  Dangol MANITA

IPC: A61K9/00 ,  A61K31/165 ,  A61K9/50

Abstract: A viscous composition for transdermal drug delivery, a method of preparing the same, and a microstructure device prepared using the viscous composition are provided. Here, the viscous composition includes colloidal particles formed of a combination of a drug and a biodegradable polymer, and the biodegradable polymer includes a first amphiphilic polymer. The use of a solvent can be minimized to homogenize the drug in the biodegradable polymer including the first amphiphilic polymer, thereby forming colloidal particles. Therefore, since a separate solvent cannot be used, the microstructure device is expected to be a transdermal drug delivery system which is safe, efficient or useful for drugs which do not include a proper solvent, show poor bioavailability or have a high molecular weight.

公开(公告)号：US20190209822A1

公开(公告)日：2019-07-11

申请号：US16300531

申请日：2017-05-10

Applicant: JUVIC INC.

Inventor： Hyung IL JUNG ,  Chengguo LI ,  Yonghao MA

IPC: A61M37/00 ,  C25D5/56 ,  C25D3/02

CPC classification number: A61M37/0015 ,  A61M37/00 ,  A61M2037/0023 ,  A61M2037/0053 ,  B81C1/00 ,  C25D3/02 ,  C25D3/12 ,  C25D5/54 ,  C25D5/56

Abstract: The present invention relates to a microstructure and a manufacturing method therefor, the method comprising the steps of: (a) forming a water-soluble microstructure core on a substrate; and (b) forming a waterproof thin film on the water-soluble microstructure core.