US-20260124438-A1 - NEEDLE PATCH FOR INJECTING DRUG USING LASER

US20260124438A1US 20260124438 A1US20260124438 A1US 20260124438A1US-20260124438-A1

Abstract

Provided is a needle patch for injecting a drug using a laser. The needle patch includes an insertion part including a needle inserted into skin, and that is composed of a biodegradable drug dissolved by moisture of the skin and injected into the skin, and a reaction part that is coupled to the insertion part, and generates a shock wave for additionally inserting the needle inserted into the skin by irradiation of a laser beam.

Inventors

Suk Bae SEO
Ja Young Kim
Ho Joon Seo

Assignees

Suk Bae SEO
Ja Young Kim
Ho Joon Seo

Dates

Publication Date: 20260507
Application Date: 20251219
Priority Date: 20230621

Claims (7)

1 . A needle patch for injecting a drug using a laser, the needle patch comprising: an insertion part including a needle inserted into skin, and composed of a biodegradable drug dissolved by moisture of the skin and injected into the skin; and a reaction part coupled to the insertion part, and configured to generate a shock wave for additionally inserting the needle inserted into the skin by irradiation of a laser beam.
2 . The needle patch of claim 1 , wherein the reaction part is a pigment material absorbing a specific wavelength of the laser beam.
3 . The needle patch of claim 1 , further comprising: a base, by which the reaction part is supported, wherein the reaction part is interposed between the base and the needle, and wherein a plurality of needles are provided, and the plurality of needles are disposed in the reaction part at an interval.
4 . The needle patch of claim 3 , wherein the reaction part has a shape entirely covering one surface of the base, on which the plurality of needles are disposed.
5 . The needle patch of claim 3 , wherein a plurality of reaction parts are provided, and wherein the plurality of reaction parts are interposed between the base and the needles.
6 . The needle patch of claim 1 , wherein the insertion part further includes a connector extending from the needle toward the reaction part, and wherein a total width of the connector and the reaction part is greater than a maximum width of a reaction area of the reaction part and the laser beam.
7 . The needle patch of claim 6 , wherein a thickness of the reaction part is smaller than a thickness of the connector.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a continuation of International Patent Application No. PCT/KR2024/008530, filed on Jun. 20, 2024, which is based upon and claims the benefit of priority to Korean Patent Application Nos. 10-2023-0079531 filed on Jun. 21, 2023 and 10-2024-0079642 filed on Jun. 19, 2024. The disclosures of the above-listed applications are hereby incorporated by reference herein in their entirety. TECHNICAL FIELD The present disclosure relates to a needle patch for injecting a drug using a laser. BACKGROUND Generally, a needle patch is mainly used for transdermal delivery of a drug. A transdermal delivery technology of a drug through a needle patch applies the drug while causing very small damage to the skin, so that fear and pain associated with injection needles may be alleviated, and accordingly, it has high applicability in cosmetic and medical industries. Generally, a needle patch may include a base and a needle that is supported by the base and inserted into the skin to deliver a drug. Here, a plurality of needles may be provided. Furthermore, the needles may be classified into a hollow microneedle, a coated microneedle, and a dissolving microneedle, depending on a method of delivering a drug to the skin. A hollow microneedle has a separate drug reservoir in an interior thereof, and delivers a drug in the drug reservoir into the skin by a pressure generated when it is inserted into the skin. A coated microneedle is one whose outer surface is coated with a biodegradable drug, and after it is inserted into the skin, the biodegradable drug coated on the outer surface is dissolved by moisture of the skin. A dissolving microneedle is one whose needle itself is made of a biodegradable drug, and after it is inserted into the skin, it is dissolved by moisture of the skin. However, a dissolving microneedle has a weaker rigidity than a metal needle because the needle itself is composed of a biodegradable drug. Accordingly, a needle patch to which a dissolving microneedle is applied has a very shallow depth, by which the dissolving microneedle penetrates into the skin, due to a rigidity of the dissolving microneedle itself. DETAILED DESCRIPTION OF THE INVENTION Technical Problem To solve the above-described problems, an objective of the present disclosure is to provide a needle patch for injecting a drug using a laser, by which a depth, by which a needle composed of a biodegradable drug is inserted into the skin, may be increased. Problems to be solved by the present disclosure are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description. Technical Solution A needle patch for injecting a drug using a laser includes an insertion part including a needle inserted into skin, and that is composed of a biodegradable drug dissolved by moisture of the skin and injected into the skin, and a reaction part that is coupled to the insertion part, and generates a shock wave for additionally inserting the needle inserted into the skin by irradiation of a laser beam. Furthermore, the reaction part may be a pigment material that absorbs a specific wavelength of the laser beam. Furthermore, the needle patch may further include a base, by which the reaction part is supported, the reaction part may be interposed between the base and the needle, and a plurality of needles may be provided, and the plurality of needles may be disposed in the reaction part at an interval. Furthermore, the reaction part may have a shape entirely covering one surface of the base, on which the plurality of needles are disposed. Furthermore, a plurality of reaction parts may be provided, and the plurality of reaction parts may be interposed between the base and the needles. Furthermore, the insertion part may further include a connector that extends from the needle toward the reaction part, and a total width of the connector and the reaction part may be greater than a maximum width of a reaction area of the reaction part and the laser beam. Furthermore, a thickness of the reaction part may be smaller than a thickness of the connector. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a cross-sectional view illustrating a needle patch for injecting a drug using a laser according to an embodiment of the present disclosure. FIGS. 2 and 3 are cross-sectional views illustrating a process of injecting a drug into skin through a needle patch for injecting a drug using a laser according to an embodiment of the present disclosure. FIG. 4 is a cross-sectional view illustrating an example of an insertion part of a needle patch for injecting a drug using a laser according to an embodiment of the present disclosure. FIGS. 5 and 6 are cross-sectional views illustrating various examples of a reaction part of a needle patch for injecting a drug using a laser according to an embodiment of the present disclosure. MODE FOR