Microneedle unit
AssigneeToppan Printing Co., Ltd.
InventorsHiroyuki Kato, Hisami Ueno
Life of this patent
Estimating the term…
Abstract
A microneedle unit including a microneedle having a first surface and a second surface opposite to the first surface, the microneedle being flexible and having one or more projections on the first surface, and a support member connected to the second surface of the microneedle such that the support member supports the microneedle. The support member includes an adhesive portion and a rigid portion connected to the adhesive portion, the adhesive portion is adhesive to skin and extends outside of the second surface in plan view of the second surface, and the rigid portion includes a rigid plate which is more rigid than the adhesive portion and the microneedle.
Claims20
A microneedle unit, comprising:
- a flexible microneedle having at least one projection on a first surface;
- and
- a support member connected to a second surface of the flexible microneedle on an opposite side with respect to the first surface of the flexible microneedle such that the support member supports the flexible microneedle,
- wherein the support member includes an adhesive layer, a base layer and a rigid plate formed such that the adhesive layer is positioned to adhere to skin and extends outside of the second surface of the flexible microneedle and that the base layer includes a support layer and a cover layer and has a rigidity lower than a rigidity of the rigid plate, and that the rigid plate overlaps with at least a portion of the flexible microneedle, is sandwiched between the support layer and the cover layer in the base layer, and has rigidity that is higher than a rigidity of the adhesive layer and the flexible microneedle.
Dependencies are inferred from the claim text.