Multi-type microneedle

Abstract

The present invention comprises: a substrate part; multiple needle holes arranged on the substrate part; multiple needle parts arranged at regular intervals along the circumferential direction of eachof the needle holes at a portion of the substrate part defining the needles holes; and a patch to be brought into contact with a user's skin while being in contact with one surface of the substrate part. Further, the present invention comprises a drug injection part or drug storage part capable of additionally supplying a drug, and is configured such that the multiple needle parts are arranged ina predetermined pattern around one needle hole. Therefore, the multiple needle parts can be inserted into a predetermined area of the skin and thus can achieve rapid diffusion or permeation of a drugto be delivered into the body under the skin. Moreover, the present invention has a structure capable of adjusting the amount of a drug delivered into the body and thus can be adaptively used according to a user's preference or a patient's condition.

Description

technical field [0001] The present invention relates to a multifunctional microneedle, and more specifically relates to a microneedle patch that sticks to the skin and delivers substances such as medicines subcutaneously. Background technique [0002] Drug delivery system (DDS) refers to a series of technologies that use various physical and chemical techniques to deliver pharmacologically active substances to cells, tissues, organs, organs, etc. [0003] As a drug delivery system, oral administration of drugs is most commonly used, and there are also transdermal methods of delivering drugs to a part of the body. Among them, a drug delivery method using a syringe, in which a metal syringe is used to perforate a patient's skin to deliver a liquid drug, has been widely used for a long time. [0004] However, the drug delivery method using a syringe has disadvantages in that it is accompanied by pain when injecting the drug, and infection of the patient is caused due to the tr...

AI Technical Summary

Problems solved by technology

[0004] However, the drug delivery method using a syringe has the following disadvantages: it is accompanied by pain when injecting the drug, and it causes infection to the patient due to the trouble of repeated inoculation and the re-use of the syringe needle due to negligent management of the syringe.

[0015] Then, when the plurality of needles 2 are pressurized by a press machine equipped with a movable die as described above, there is a possibility that the portion of the substrate portion 1 located between the plurality of needles 2 is deformed or damaged by the pressurizing piece. question

[0016] In particular, in order to increase the delivery speed of the subcutaneous drug, when the number of needles 2 is increased and the distance between the needles 2 is narrowed very closely, on the contrary, the position of the substrate part 1 between the needles 2 The part is closer to the pressure sheet, so it can be easily deformed or damaged

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