Transdermal drug delivery patch and manufacturing method thereof
AssigneesPostech Academy-Industry Foundation, Shilla Industrial Co., Ltd.
InventorsGeunbae LIM, Jungho LEE, Byoungsun CHOI, Hyeonsu WOO
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Abstract
A transdermal drug delivery patch according to an exemplary embodiment of the present invention includes: a flexible base layer; and a plurality of microneedle disposed at one surface of the base layer. Each of the plurality of microneedles includes a biodegradable polymer and a drug and has an empty space inside. Each of the plurality of microneedles is formed as a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and a part between two protrusions adjacent along the circumferential direction among the plurality of protrusions is concave.
Claims6
A transdermal drug delivery patch comprising:
- a flexible base layer;
- and
- a plurality of microneedles disposed at one surface of the base layer, including a biodegradable polymer and a drug, and having an empty space inside,
- wherein each of the plurality of microneedles is formed of a star-shaped pyramid including a plurality of protrusions extending in a radial direction, and
- a part between two protrusions adjacent along the circumferential direction among the plurality of protrusions is concave.
Dependencies are inferred from the claim text.