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US 2020/0009363 A1Published application
Microneedle template and microneedle prepared using the same
AssigneeS-Skin. Co., Ltd.
InventorsJeong Gun LEE, Shin Hee CHO, Bo Young SHIN
Life of this patent
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Abstract
Provided are a microneedle template including: a substrate on which at least one microneedle shapes are formed; and a diamond layer formed on the surface of the at least one microneedle shapes, a method for preparing the microneedle template, a microneedle prepared using the microneedle template, and a method for preparing the microneedle.
Claims11
A microneedle template, comprising:
- a substrate on which at least one microneedle shapes are formed;
- and
- a diamond layer formed on the surface of the at least one microneedle shapes,
- wherein a thickness of the diamond layer is 10 μm or less,
- wherein the cross section of the each microneedle shape includes a combination of a tetragonal shape and a hexagonal shape,
- wherein a portion having the hexagonal cross section is located at which the microneedle shape is in contact with the substrate and a portion having the tetragonal cross section is located at the end of the microneedle shape in a direction where the microneedle shape is in contact with a skin,
- wherein, in the each microneedle shape, a ratio of the length of the portion having the hexagonal cross section to the length of the portion having the tetragonal cross section is from 1:0.1 to 1:2, and
- wherein, in the each microneedle shape, a ratio of the maximum length of a diagonal line of the tetragonal cross section to the maximum length of a diagonal line of the hexagonal cross section is from 1:2 to 1:10.
5 more elements
A method for preparing a microneedle template, comprising:
- forming at least one microneedle shapes on a substrate;
- and
- forming a diamond layer on the surface of the at least one microneedle shapes,
- wherein a thickness of the diamond layer is 10 μm or less,
- wherein the cross section of the each microneedle shape includes a combination of a tetragonal shape and a hexagonal shape,
- wherein a portion having the hexagonal cross section is located at which the microneedle shape is in contact with the substrate and a portion having the tetragonal cross section is located at the end of the microneedle shape in a direction where the microneedle shape is in contact with a skin,
- wherein, in the each microneedle shape, a ratio of the length of the portion having the hexagonal cross section to the length of the portion having the tetragonal cross section is from 1:0.1 to 1:2, and
- wherein, in the each microneedle shape, a ratio of the maximum length of a diagonal line of the tetragonal cross section to the maximum length of a diagonal line of the hexagonal cross section is from 1:2 to 1:10.
5 more elements
Dependencies are inferred from the claim text.