CN219517547U

CN219517547U - Novel inclined microneedle structure

Info

Publication number: CN219517547U
Application number: CN202222027187.7U
Authority: CN
Inventors: 贾梦虹; 范丽敏; 薛敬玉
Original assignee: Shanghai Chuanghua Material Technology Co ltd
Current assignee: Shanghai Chuanghua Material Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-08-15
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a novel inclined microneedle structure, which comprises a second base, wherein a plurality of microneedles are arranged on the second base, and the angle between the microneedles and the second base is smaller than 90 degrees and is used for being inserted into the surface of skin at an angle; microneedles can be loaded with different drugs to address complex skin conditions; the 45-degree inclined microneedle can better act on the uneven position of the surface of a receptor, and the inclined microneedle can reduce the insertion resistance, so that the microneedle can more easily penetrate into the skin and is not easy to slide to other positions in the process of medication; the utility model can be prepared by a 3D printing mode, and a sample of the resin material is irradiated with ultraviolet rays for two hours and heated at 120 ℃ for two hours before preparation, or a thin metal layer is sputtered on the surface of the sample, so that the direct contact between the sample and the negative film is avoided to prevent the negative film from being solidified.

Description

Novel inclined microneedle structure

Technical Field

The utility model relates to the field of medical supplies, in particular to a novel inclined microneedle structure.

Background

Along with the development of modern biomedical technology, the painless accurate administration demand is increased, and the microneedles are simple and convenient to use, small in size and capable of not leaving obvious wounds after the action, so that the demand is increased.

The microneedle structure in the prior art is mostly quadrangular cone, cylindric etc. that possess vertical axis structure, and it is higher to administer medicine efficiency at level surface, but when facing the uneven time of acceptor surface, the resistance that receives when inserting skin with the perpendicular microneedle of base is great, is difficult to pierce skin, can not reach better efficiency of dosing.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a novel inclined microneedle structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a second base is arranged on the second base,

the micro-needles are arranged on the second base;

the angle between the microneedle and the plane of the second base is smaller than 90 degrees, so that the microneedle can be inserted into the surface of the skin at an angle.

As a further description of the above technical solution: the microneedle comprises a tangent plane cylinder and a cone, the tangent plane of the tangent plane cylinder is 45 degrees, and the microneedle is connected with the second base, and the cone stands on the tangent plane cylinder at 45 degrees.

As a further description of the above technical solution: the bottom surface radius of the tangent plane cylinder part of the microneedle is 200 microns, and the height is 300 microns.

As a further description of the above technical solution: the radius of the conical bottom surface of the microneedle is 200 micrometers, and the height is 800 micrometers.

As a further description of the above technical solution: the second base is connected with the first base, and a plurality of microperforations are formed in the first base and the second base.

As a further description of the above technical solution: the spacing between the microperforations was 500 microns.

As a further description of the above technical solution: a plurality of the micropins form a 15 by 15 microneedle array.

As a further description of the above technical solution: the first base is a cylinder with the radius of the bottom surface of 9 mm and the height of 4 mm.

As a further description of the above technical solution: the second base is a cuboid with a square bottom surface, the side length of the second base bottom surface is 10 mm, and the height of the second base bottom surface is 0.5 mm.

As a further description of the above technical solution: the micro needle is arranged on the first base and the second base through the micro needle hole.

The utility model has the following beneficial effects:

according to the utility model, through the microneedle structure which is in an angle with the base, a plurality of microneedles can be loaded with different medicines, skin resistance born by the microneedles in the action process is reduced, the microneedles can be inserted into skin more conveniently, and meanwhile, the number and arrangement positions of the microneedles can be changed according to skin conditions, so that a better medicine effect is achieved.

Drawings

FIG. 1 is a schematic view of a base of a novel inclined microneedle structure according to the present utility model;

fig. 2 is a schematic view of the location of the base-mounted microneedle of fig. 1.

Legend description:

1. a first base; 2. a second base; 3. a microneedle; 4. microperforations.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, one embodiment provided by the present utility model is: the skin care device comprises a second base 2, a plurality of micro-needles 3 arranged on the second base 2, wherein the angle between the micro-needles 3 and the second base 2 is smaller than 90 degrees, and the micro-needles are inserted into the skin surface at an angle; the microneedles 3 may be loaded with different drugs to cope with complex skin conditions; the 45-degree inclined micro needle 3 can better act on the uneven position of the surface of a receptor, and the inclined micro needle can reduce the insertion resistance, so that the micro needle 3 can be more easily penetrated into the skin, and is not easy to slide to other positions in the process of medication; the utility model can be prepared by a 3D printing mode, and a sample of the resin material is irradiated with ultraviolet rays for two hours and heated at 120 ℃ for two hours before preparation, or a thin metal layer is sputtered on the surface of the sample, so that the direct contact between the sample and the negative film is avoided to prevent the negative film from being solidified.

Referring to fig. 2, through the first base 1 and the second base 2, the substrate height of the PDMS mold can be adjusted more flexibly in the subsequent writing of the PDMS mold, so that the height of the microneedle 3 can be adjusted, the microneedle can be better adapted to different receptor environments, and the application range is wider.

Working principle: during preparation, the quantity and loading positions of different medicines in the micro needle 3 are set according to the skin condition of a receptor, and the heights of the first base 1 and the second base 2 are adjusted, so that the utility model is suitable for the receptor environment; in use, the microneedles 3 which are inclined at 45 ° are inserted in a direction which meets the surface of the receptor, so that the receptor can be inserted more efficiently, and the condition that the tips of the microneedles 3 are bent or damaged during the insertion process can be reduced.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Novel slope microneedle structure, its characterized in that: comprises a second base (2),

a plurality of micro-needles (3) are arranged on the second base (2);

the angle between the microneedle (3) and the plane of the second base (2) is smaller than 90 degrees, so that the microneedle can be inserted into the surface of the skin at an angle.

2. The novel inclined microneedle structure according to claim 1, wherein: the microneedle (3) consists of a tangent plane cylinder and a cone, the tangent plane of the tangent plane cylinder is 45 degrees, the microneedle is connected with the base II (2), and the cone is erected on the tangent plane cylinder at 45 degrees.

3. The novel inclined microneedle structure according to claim 2, wherein: the radius of the bottom surface of the section cylinder part of the microneedle (3) is 200 micrometers, and the height is 300 micrometers.

4. The novel inclined microneedle structure according to claim 2, wherein: the radius of the conical bottom surface of the microneedle (3) is 200 micrometers, and the height is 800 micrometers.

5. The novel inclined microneedle structure according to claim 1, wherein: the base II (2) is connected with the base I (1), and a plurality of microperforations (4) are formed in the base I (1) and the base II (2).

6. The novel inclined microneedle structure according to claim 5, wherein: the spacing between the microperforations (4) is 500 microns.

7. The novel inclined microneedle structure according to claim 5, wherein: a plurality of said microperforations (4) form a 15 by 15 microneedle array.

8. The novel inclined microneedle structure according to claim 5, wherein: the first base (1) is a cylinder with the bottom radius of 9 mm and the height of 4 mm.

9. The novel inclined microneedle structure according to claim 1, wherein: the second base (2) is a cuboid with a square bottom surface, the side length of the bottom surface of the second base (2) is 10 mm, and the height of the bottom surface is 0.5 mm.

10. The novel inclined microneedle structure according to claim 5, wherein: the micro needle (3) is arranged on the first base (1) and the second base (2) through the micro needle hole (4).