Microneedle puncture instrument

Patent metadata

Field	Value
Publication number	US-10449345-B2
Application number	US-201916240740-A
Country	US
Kind code	B2
Filing date	Jan 5, 2019
Priority date	Jul 15, 2016
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A microneedle puncture instrument includes a pinch section including a first pinch element and a second pinch element arrayed in an array direction and configured to individually pinch the skin in a pinch direction, which intersects with the array direction, the first pinch element and the second pinch element being connected to each other with a distance therebetween maintained within a predetermined range; and a puncture section configured to puncture the skin while pinching the skin in the pinch direction at a position between the first pinch element and the second pinch element in the array direction, the puncture section including a microneedle for puncturing the skin and a support portion that supports the microneedle.

First claim

What is claimed is:

1. A microneedle puncture instrument comprising:
a pinch section including a first pinch element and a second pinch element arrayed in an array direction and configured to individually pinch a skin in a pinch direction, which intersects with the array direction, the first pinch element and the second pinch element being connected to each other with a distance therebetween maintained within a predetermined range; and
a puncture section configured to puncture the skin while pinching the skin in the pinch direction at a position between the first pinch element and the second pinch element in the array direction, the puncture section including a microneedle for puncturing the skin and a support portion that supports the microneedle.

2. The microneedle puncture instrument of claim 1 ,
further comprising a support shaft that extends in the array direction, and,
wherein the pinch section includes:
a first pinch section supported by a first shaft portion which is part of the support shaft, the first pinch section including a first upper portion, and a first lower portion located at a position different from the first upper portion in the pinch direction, the first upper portion and the first lower portion cooperating with each other to pinch the skin; and
a second pinch section supported by a second shaft portion which is part of the support shaft, the second pinch section including a second upper portion, and a second lower portion located at a position different from the second upper portion in the pinch direction, the second upper portion and the second lower portion cooperating with each other to pinch the skin,

the first pinch element includes the first shaft portion and the first pinch section, and
the second pinch element includes the second shaft portion and the second pinch section.

3. The microneedle puncture instrument of claim 2 , wherein the puncture section includes:
a third shaft portion which is part of the support shaft located between the first shaft portion and the second shaft portion in the array direction;
an upper puncture portion supported by the third shaft portion and including the support portion; and
a lower puncture portion located at a position different from the upper puncture portion in the pinch direction, and
the upper puncture portion and the lower puncture portion cooperate with each other to pinch the skin.

4. The microneedle puncture instrument of claim 1 , wherein the puncture section is connected to the pinch section at a position between the first pinch element and the second pinch element in the array direction.

5. The microneedle puncture instrument of claim 4 , further comprising:
three upper portions arrayed in the array direction; and
a lower portion extending in the array direction and located at a position different from all three upper portions in the pinch direction, the lower portion having a size overlapping with all three upper portions in the array direction when viewed in the pinch direction,
wherein the first pinch element, the second pinch element, and the puncture section each have individual upper portions of the three upper portions,
wherein the upper portion of the puncture section includes the support portion, and
wherein the pinch section and the puncture section share the lower portion.

6. A microneedle puncture instrument, comprising:
a pinch section configured to pinch a skin in a pinch direction, the pinch section including an upper pinch portion and a lower pinch portion located at a position different from the upper pinch portion in the pinch direction; and
a puncture section configured to puncture the skin while pinching the skin in the pinch direction, the puncture section including an upper puncture portion which includes a microneedle for puncturing the skin and a support portion that supports the microneedle, and a lower puncture portion located at a position different from the upper puncture portion in the pinch direction,
wherein the pinch section and the puncture section are arrayed in an array direction, which intersects with the pinch direction,
wherein the lower pinch portion and the lower puncture portion are included in a single lower portion extending in the array direction,
wherein the upper pinch portion and the upper puncture portion are located to face a same side of the single lower portion, and
wherein the single lower portion has a portion extending in the array direction from a position facing the upper puncture portion to a side opposite to that facing the upper pinch portion.

Assignees

• Toppan Printing Co Ltd

Inventors

• Sumida Tomoya

Classifications

• A61M37/00

  Other apparatus for introducing media into the body (for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30); Percutany, i.e. introducing medicines into the body by diffusion through the skin (salt baths A61H33/04) · CPC title

• A61M2037/0061

  Methods for using microneedles · CPC title

• A61M37/0015 Primary

  by using microneedles · CPC title

• A61M5/42

  having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced · CPC title

• A61M2037/0023

  Drug applicators using microneedles · CPC title