Biological Tissue Transdermal Patch

US2025345579A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025345579-A1
Application numberUS-202218869482-A
CountryUS
Kind codeA1
Filing dateMay 26, 2022
Priority dateMay 26, 2022
Publication dateNov 13, 2025
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A patch for sticking to a biological tissue includes a battery unit, and a soluble microneedle in contact with the battery unit, in which the soluble microneedle contains an active ingredient, and a battery reaction is started by inserting the soluble microneedle into the biological tissue.

First claim

Opening claim text (preview).

1 . A patch for sticking to a biological tissue that is used by being stuck to a biological tissue, the patch comprising: a battery unit; and a soluble microneedle in contact with the battery unit, wherein the soluble microneedle contains an active ingredient, and a battery reaction is started by inserting the soluble microneedle into the biological tissue. 2 . The patch for sticking to a biological tissue according to claim 1 , wherein the soluble microneedle functions as an electrolyte and the battery reaction is started by dissolving the soluble microneedle in the biological tissue. 3 . The patch for sticking to a biological tissue according to claim 1 , wherein the battery unit includes a positive electrode, a negative electrode, and a conductive layer, and the conductive layer is in contact with each of the positive electrode and the negative electrode. 4 . The patch for sticking to a biological tissue according to claim 3 , wherein the soluble microneedle includes a positive electrode part soluble microneedle that is disposed to be in contact with the positive electrode and not to be in contact with the negative electrode, and a negative electrode part soluble microneedle that is disposed to be in contact with the negative electrode and not to be in contact with the positive electrode, and the positive electrode part soluble microneedle and the negative electrode part soluble microneedle are used in a state of being inserted into the biological tissue. 5 . The patch for sticking to a biological tissue according to claim 3 , wherein the positive electrode contains cellulose carbide having a three-dimensional network structure. 6 . The patch for sticking to a biological tissue according to claim 3 , wherein the negative electrode contains at least one selected from the group consisting of magnesium, zinc, aluminum, iron, calcium, lithium, and sodium. 7 . The patch for sticking to a biological tissue according to claim 2 , wherein the battery unit includes a positive electrode, a negative electrode, and a conductive layer, and the conductive layer is in contact with each of the positive electrode and the negative electrode.

Assignees

Inventors

Classifications

  • by using microneedles · CPC title

  • Drug applicators using microneedles · CPC title

  • Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs · CPC title

  • 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

  • A61N1/30Primary

    Apparatus for iontophoresis, {i.e. transfer of media in ionic state by an electromotoric force into the body}, or cataphoresis · CPC title

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Frequently asked questions

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What does patent US2025345579A1 cover?
A patch for sticking to a biological tissue includes a battery unit, and a soluble microneedle in contact with the battery unit, in which the soluble microneedle contains an active ingredient, and a battery reaction is started by inserting the soluble microneedle into the biological tissue.
Who is the assignee on this patent?
Nippon Telegraph & Telephone
What technology area does this patent fall under?
Primary CPC classification A61M37/0015. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Thu Nov 13 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).