Microneedle unit
AssigneeToppan Printing Co., Ltd.
InventorHisami Ueno
Life of this patent
Estimating the term…
Abstract
A microneedle unit including a microneedle including a substrate having a first surface and a second surface opposite to the first surface, the microneedle further including a projection protruding from the first surface of the substrate, an adhesive sheet including a sticking region attached to the second surface, the adhesive sheet further including an adhesive region protruding outside the substrate from the sticking region in a direction parallel to the second surface, and a protective sheet covering a portion of the adhesive region outside of the substrate in the direction parallel to the second surface.
Claims20
A microneedle unit, comprising:
- a microneedle comprising a substrate and a projection protruding from a first surface of the substrate;
- an adhesive sheet attached to a second surface of the substrate on an opposite side with respect to the first surface such that the substrate is positioned on a sticking region of the adhesive sheet and that the adhesive sheet has an adhesive region outside the sticking region;
- and
- a protective sheet adhered to the adhesive region of the adhesive sheet and having a first opening such that the first opening is exposing the microneedle on the adhesive sheet and that the protective sheet has a thickness that is larger than a sum of a thickness of the substrate and a length of the projection in a thickness direction of the substrate,
- wherein the adhesive sheet has an adhesive surface having the sticking region and the adhesive region outside the sticking region such that the microneedle and the protective sheet are adhered to the adhesive surface of the adhesive sheet and that the microneedle is positioned inside the first opening of the protective sheet.
Dependencies are inferred from the claim text.