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A kind of base easy to tear micro-needle sticker

A technology of microneedle sticking and microneedle, which is applied in the field of microneedle, can solve the problems of long time required for the base layer, tearing off, difficult base layer, etc.

Active Publication Date: 2022-07-26
YOUWE ZHUHAI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an easy-to-tear microneedle patch, which solves the technical problem that the existing microneedle patch is difficult to tear off the base layer from the microneedle during use, and the The technical problem that it takes a long time to tear off the base layer after the microneedles dissolve

Method used

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  • A kind of base easy to tear micro-needle sticker
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  • A kind of base easy to tear micro-needle sticker

Examples

Experimental program
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Effect test

Embodiment 1

[0060] The present embodiment provides an easily peelable base microneedle sticker. The base easy to tear microneedle sticker includes a base layer 5 and at least one microneedle, and the at least one microneedle is arranged at the bottom of the base layer 5 . The microneedles themselves carry the drug ingredients and can dissolve in the skin.

[0061] Further, refer to Figure 1-14As shown, the microneedle includes a first microneedle 4 , and the first microneedle 4 includes a microneedle body 41 . In the vertical direction, the microneedle body 41 includes a needle tip 411 , a middle portion 412 and a needle seat 413 in sequence. The needle hub 413 is connected to the base layer 5 . A fixed part with a non-smooth surface is provided on the circumference of the microneedle body 41, and the fixed part includes the protrusion 42 and / or the part of the needle tip 411 that protrudes from the needle seat 413 in the circumferential direction, or is disposed on the microneedle bod...

Embodiment 2

[0086] The difference between this embodiment and Embodiment 1 is that the microneedle body 41 is a vertebral body with a horizontal projection of an elliptical sector: the protrusion 42 is located on the edge of the microneedle body 41 connecting the tip of the bottom surface of the elliptical sector, and is located at the level of the microneedle body 41 The short axis side of the projection.

[0087] Compared with Embodiment 1, the volume of the first microneedle 4 in this embodiment is increased, so as to increase the drug loading capacity of the first microneedle 4 and meet the requirements of different drugs for dosage forms.

Embodiment 3

[0089] refer to Figure 7-8 As shown, the difference between this embodiment and Embodiment 1 is that the microneedle body 41 is a triangular pyramid: the protrusions 42 are located on the edges of the microneedle body 41 to reduce the resistance when the first microneedle 4 penetrates the skin. When a protrusion 42 is provided, the protrusion 42 is located on the edge perpendicular to the base layer 5 to further reduce the resistance when the first microneedle 4 penetrates the skin.

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Abstract

The invention relates to a base easy to tear microneedle sticker, comprising a base layer and a first microneedle arranged on the base layer, the first microneedle comprising a microneedle main body and at least one fixing part arranged on the microneedle main body. The connection between the first microneedle and the base layer is provided with a stress point structure for tearing and separating the first microneedle and the base layer. The beneficial effect is that since the connection between the first microneedle and the base layer is provided with a stress point structure for tearing and separating the first microneedle and the base layer, there is a large stress concentration phenomenon at the stress point structure, and the base layer is torn off. , the critical stress for fracture separation of the base layer and the first microneedles at the stress point structure is small, so the base layer can be fractured and separated from the first microneedles to tear off the base layer under the action of a small external force.

Description

technical field [0001] The invention relates to the technical field of microneedles, in particular to a microneedle sticker with an easily tearable base. Background technique [0002] For nearly a hundred years, metal injection needles have been widely used in the medical industry as the mainstream device for drug injection, but the pain and fear caused by the use of metal injection needles make it difficult for some people (especially children) to accept. With the advancement and development of science and technology, microneedle patches for drug injection have come out. [0003] The microneedle patch generally includes a base layer and microneedles arranged in sequence from top to bottom, and the microneedles can be dissolved. When in use, press the side of the microneedle sticker with the microneedle on the skin until the microneedle punctures the skin and the basal layer adheres to the skin. Due to the short length of the microneedle, the process of puncturing the micr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M37/00
CPCA61M37/0015A61M2037/003A61M2037/0046
Inventor 冷钢马永浩李成国陈锦永陈莲华李燕芬王鉴哲
Owner YOUWE ZHUHAI BIOTECH CO LTD