Fujifilm Corporation

Yuka Kobayashi

Yoshiki Sakazaki

Kenichiro Tamaki

Yasuhiro Sekizawa

Junya Yoshida

Koki Kabata

The present invention provides a microneedle array, a support member, a method of producing a microneedle array, and a microneedle array unit which enable reduction of a drying time during production and prevention of breakage during drying. Provided are a microneedle arrayincluding a sheet portion, a plurality of needle-like protrusions, and a support memberformed of a gripping portionand a beam portionhaving one end that is connected to the gripping portion, in which the sheet portionis an integrally molded body which is integrally molded with the support member, in which at least a part of the beam portionis buried under the other surfaceof the sheet portion, opposite to the one surface where the needle-like protrusionsare provided, the gripping portionis provided on the other surfaceof the sheet portion, and the beam portionis deformable toward a center of the sheet portion. Further, provided are the support member, a method of producing the microneedle array, and a microneedle array unitincluding a container

Microneedle array, support member, method of producing microneedle array, and microneedle array unit

A micro-needle array unit includes a micro-needle array; a container which accommodates the micro-needle array and includes an accommodating portion having an opening and a protrusion that supports the outer peripheral surface of the micro-needle array, a deformation portion disposed on a side opposite to the opening and integrated with the accommodating portion, and a flange portion integrated with the accommodating portion and brought into contact with the skin; and a lid which seals the opening of the container, in which the deformation portion is deformed and the other surface of the micro-needle array is pressed due to an external force being applied in a direction of the opening, the micro-needle array deforms the protrusions and is pushed to the outside from the accommodating portion by the pressing of the other surface of the micro-needle array, and the deformation portion maintains the deformed state and presses the micro-needle array.

Micro-needle array unit and container

Provided is a method of producing a microneedle array unit which is capable of suppressing damage to a microneedle array. The method of producing a microneedle array unit, including an array preparing step of preparing a microneedle array which includes a sheet and a plurality of needles arranged on one surface of the sheet; a container preparing step of preparing a container which includes an accommodating portion defining an opening and a space for accommodating the microneedle array, and a deformable portion disposed on a side opposite to the opening and integrated with the accommodating portion; an accommodating step of accommodating the microneedle array in the accommodating portion of the container by allowing the other surface of the sheet of the microneedle array and the deformable portion of the container to oppose each other; and a deforming step of deforming an outer surface of the accommodating portion inward, which is positioned between the one surface of the sheet of the microneedle array and the opening of the accommodating portion, to form a protrusion that reduces an area of the opening.

Growing community of inventors

Kanagawa, Japan

Yuka Kobayashi