Microneedle having structure of three or more layers, and method for manufacturing same
AssigneeFeroka Inc.
InventorsInduk LEE, Yeo Myung LIM, Yiseul JEON, Yeon-wook SUNG
Life of this patent
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Abstract
The present invention pertains to: a microneedle having a structure of three or more layers; and a method for manufacturing same. The microneedle has a structure of three or more layers, wherein the structure is a structure including an inner pillar shell, a structure including a three-dimensional structure shell, or a structure including a solid drug.
Claims15
A microneedle in a structure of three or more layers, the microneedle comprising:
- a middle portion configured to penetrate into the skin and formed of a compound containing a drug component;
- a lower portion configured to support the middle portion and comprising an inner pillar shell having a hollow central portion with a preset radius;
- and
- an upper portion provided at a top end of the middle portion and configured to facilitate penetration.
A microneedle in a structure of three or more layers comprising a three-dimensional (3D) structure shell, the microneedle comprising:
- a middle portion configured to penetrate into the skin and formed of a compound containing a drug component;
- a lower portion configured to support the middle portion and comprising a 3D structure shell in which a plurality of units comprising a plurality of straight members extending in different directions are coupled;
- and
- an upper portion provided at a top end of the middle portion and configured to facilitate penetration.
A microneedle containing a solid drug in a structure of three or more layers, the microneedle comprising:
- a middle portion configured to penetrate into the skin and containing a solid drug in a cavity;
- a lower portion configured to support the middle portion;
- and
- an upper portion provided at a top end of the middle portion and configured to facilitate penetration.
Dependencies are inferred from the claim text.