CN214970399U

CN214970399U - Microneedle structure

Info

Publication number: CN214970399U
Application number: CN202120626677.1U
Authority: CN
Inventors: 叶锋; 于露; 佘国柱; 贾爱萍
Original assignee: Jiangsu Great Wall Medical Devices Co ltd
Current assignee: Jiangsu Great Wall Medical Devices Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-12-03
Anticipated expiration: 2031-03-29

Abstract

The invention discloses a microneedle structure, which comprises a needle seat and a needle table, wherein one end of the needle seat is provided with a containing cavity, the needle table is inserted into the containing cavity and is sealed and fixed in the containing cavity by glue, one side of the needle table is provided with an inner clamping groove, a needle tube is arranged in the inner clamping groove, the needle tube and the inner clamping groove are fixedly connected through the glue, one end of the needle seat, far away from the containing cavity, is provided with a connecting part, the connecting part is connected with the needle tube, the needle tube is communicated with the needle tube, the inner clamping groove comprises a middle clamping section, and an inlet section and a fixing section which are positioned on two sides of the clamping section.

Description

Microneedle structure

Technical Field

The invention belongs to the technical field of micro-needles, and particularly relates to a micro-needle structure.

Background

Medical Cosmetology (Medical Cosmetology) refers to a cosmetic method for repairing and remodeling human appearance and human body parts and shapes by using medicines, operations, Medical instruments and other Medical technical methods with traumatism or irreversibility, wherein injection technology and injection devices play an important role in Medical Cosmetology. The injection device in the prior art generally adopts single-needle injection, the efficiency of the single-needle injection is low, and the pain is concentrated; also, the injection device is for multi-needle injection, and at present, the mounting manner of mounting a plurality of injection needles on an injection tube is mainly as follows: the multiple injection needles are directly clamped mechanically or manually, then inserted into a needle tube seat connected with the injection tube, and the injection needles and the needle seat are bonded together through glue.

The Chinese patent with the application number of CN202010764298.9 discloses a micro-needle platform and an injection needle assembly, wherein the side wall of the micro-needle platform is provided with a plurality of needle tube clamping grooves which are parallel to each other and are arranged at intervals, and the groove diameter of each needle tube clamping groove is matched with the outer diameter of a needle tube of a micro-injection needle; this syringe needle subassembly includes the syringe needle seat, a plurality of miniature syringe needles and micro needle platform, the syringe needle seat has the liquid medicine chamber, the syringe needle seat is equipped with the installation cavity with micro needle platform looks adaptation, miniature syringe needle installs on the needle tube draw-in groove of micro needle platform, micro needle platform installs in the installation cavity, through addding the form that the lateral wall has the micro needle platform of needle tube draw-in groove, in advance with miniature syringe needle installation income needle tube draw-in groove, utilize the pretightning force effect of needle tube draw-in groove, make many pieces of miniature syringe needles can realize fixed mounting in advance at micro needle bench purpose, still can keep unanimous purpose with the opening orientation of the miniature syringe needle after ensureing to install.

The chinese patent application No. CN202010443174.0 discloses a split multi-needle tube injection device, in which a base and a needle platform are designed in a split manner, one end of the base is provided with an accommodating groove, the needle platform is inserted into the accommodating groove and is sealed and fixed in the accommodating groove by glue, the side surface of the needle platform is provided with a plurality of parallel needle grooves, needle tubes are fixed in the needle grooves by glue dispensing, the other end of the base is communicated with an injector, and the injector is communicated with the needle tubes. Compared with the prior art, the split type multi-needle tube injection device changes the mode of direct vertical insertion and assembly of the needle tube in the traditional process through the split type design of the base and the needle table, and can greatly improve the assembly efficiency of the needle tube and improve the assembly precision; the gap between the needle tubes can be refined, the space between the needle tubes is reduced, and the injection pain is reduced; the number of the needle tubes can be adjusted according to the number of the needle grooves, the injection devices with different requirements on the number of the needle tubes under different use scenes can be produced according to needs, the production is flexible, the flexibility is easy, and the product applicability is improved.

Above-mentioned patent all has a shortcoming, when the installation syringe needle, all directly grasp many pieces of syringe needles through manual work or machinery, insert the syringe needle in the overhead interior draw-in groove of needle, when the syringe needle inserts the overhead interior draw-in groove of needle, must guarantee that syringe needle and interior draw-in groove are aimed at, if there is slight deviation, then can't insert the interior draw-in groove, because the syringe needle all is very thin, the hardness is not enough, cause the damage of syringe needle when leading to the contact pin easily when inserting through mechanical means, especially when carrying out a plurality of syringe needles and installing simultaneously, the deviation appears in partial syringe needle position more easily, cause the damage, produce the wastrel.

Disclosure of Invention

In order to solve the above problems, the present invention provides the following technical solutions: the utility model provides a micro-needle structure, includes needle file and needle platform, the one end of needle file is equipped with and holds the chamber, the needle platform is inserted and is located to hold the intracavity and be fixed in with the glue encapsulation and hold the chamber, interior draw-in groove has been seted up to one side of needle platform, install the needle tubing in the interior draw-in groove, link admittedly through glue between needle tubing and the interior draw-in groove, the one end of keeping away from and holding the chamber of needle file is equipped with connecting portion, connecting portion connect the cylinder, the cylinder is linked together with the needle tubing, interior draw-in groove includes middle joint section and is located the entrance and the canned paragraph of joint section both sides.

Further, the entrance section is connected in the front end of joint section, canned paragraph bit connects in the rear end of joint section, the diameter of entrance section is by a side to the opposite side grow gradually that is close to the joint section, the diameter of canned paragraph is greater than the joint section.

Furthermore, the inner clamping grooves are at least arranged in one row, and the number of the inner clamping grooves in each row is 3-5.

Furthermore, the needle tubes are arranged on the needle platform in parallel, the front ends of the needle tubes are provided with needles, the inclined planes of the needles are consistent, the length of each needle tube exposed to the cavity is equal, the exposed length of each needle tube is longer, and the diameter of each needle tube is larger.

Furthermore, the one side that the needle platform deviates from interior draw-in groove is equipped with the constant head tank, it is equipped with corresponding reference column to hold intracavity lateral wall.

Further, connecting portion are the spiro union formula structure, connecting portion and cylinder looks spiro union.

Furthermore, wing fins are symmetrically arranged on two sides of the needle seat, a positioning fin is arranged on the front surface of the needle seat, a chamfer is arranged on the positioning fin, and the inclined surface of the chamfer is consistent with that of the needle head.

Furthermore, one end of the needle base, which is far away from the connecting part, is provided with an auxiliary tangent plane, and an included angle between the auxiliary tangent plane and the outer side wall of the needle base is 45 degrees.

Furthermore, the groove wall of the clamping section is V-shaped.

Further, the outside of connecting portion is equipped with the screw thread and indicates the strip.

The invention has the advantages that: be equipped with the entrance in one side of built-in groove, going into the front end in the joint section of connecting of section, the diameter of entrance is by a side to the opposite side grow gradually that is close to the joint section, and when the installation needle tubing, the needle tubing carries out joint section and canned paragraph after inserting from the entrance in proper order, later links admittedly by glue, because the existence of entrance, even there is the deviation in the initial position of needle tubing and needle groove, also can get into the joint section smoothly, has guaranteed the efficiency and the security of installation.

Drawings

Fig. 1 is a front structural schematic view of a needle bed of the present invention.

Fig. 2 is a schematic diagram of the general structure of the present invention.

Fig. 3 is a reverse side structure view of the needle bed of the present invention.

Fig. 4 is a two-dimensional plan view of the needle table of the present invention.

In the figure: 1. a needle seat; 2. a needle table; 3. an accommodating chamber; 4. an inner clamping groove; 5. a needle tube; 6. a connecting portion; 7. a clamping section; 8. an inlet section; 9. a fixed section; 10. a needle head; 11. positioning a groove; 12. a wing; 13. positioning the fins; 14. chamfering; 15. auxiliary cutting; 16. and a thread indicator strip.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

Referring to fig. 1-4, a microneedle structure comprises a needle holder 1 and a needle platform 2, wherein one end of the needle holder 1 is provided with a containing cavity 3, the needle platform 2 is inserted into the containing cavity 3 and is sealed and fixed in the containing cavity 3 by glue, one side of the needle platform 2 is provided with an inner clamping groove 4, a needle tube 5 is installed in the inner clamping groove 4, the needle tube 5 is fixedly connected with the inner clamping groove 4 by glue, one end of the needle holder 1 far away from the containing cavity 3 is provided with a connecting part 6, the connecting part 6 is connected with a needle tube (not shown in the figure), the needle tube is communicated with the needle tube 5, in the embodiment, the clamping platform is provided with a row of inner clamping grooves 4, each row is provided with three inner clamping grooves 4, each inner clamping groove 4 is arranged in parallel and at intervals, each inner clamping groove 4 is provided with a needle tube 5, the inner clamping groove 4 comprises a middle clamping section 7, an inlet section 8 and a fixing section 9 which are positioned at two sides of the clamping section 7, when the needle tube 5 is installed, the needle tube 5 is firstly inserted from the inlet section 8, the diameter of the inlet section 8 is gradually increased from one side close to the clamping section 7 to the other side, the cross section of the inlet section 8 can be in a bowl shape or a funnel shape as shown in fig. 4, the inner side wall of the inlet section 8 is smooth, even if the central lines of the needle tube 5 and the inner clamping groove 4 are not coaxial in the initial stage, the needle tube 5 can slide into the clamping section 7 along the side wall of the inlet section 8 after entering the inlet section 8 and is corrected by the clamping section 7, the clamping section 7 is designed to be a V-shaped inclined surface, automatic initial positioning can be realized when the needle tube 5 falls into the clamping section 7, the assembly difficulty of the needle tube 5 can be effectively reduced, the assembly efficiency and the positioning precision are improved, the needle tube 5 continues to enter the fixing section 9, the diameter of the fixing section 9 is larger, more glue can be injected, the stability and the sealing performance of the needle tube 5 are improved, and the side wall of the needle tube 7 can provide certain clamping force and friction force by utilizing the limiting function of the clamping section 7 after the needle tube 5 is inserted into the inner clamping groove 4, make needle tubing 5 can not take place to rotate, needle tubing 5 can realize fixed mounting in advance the purpose on needle platform 2, later when through mechanical equipment or artifical centre gripping needle tubing 5, avoid causing the problem that needle tubing 5 takes place to deflect because of mechanical equipment or artificial self micro-vibration, and then realize that the opening orientation of needle tubing 5 after the installation still can keep unanimous purpose, improve product quality. After the needle tubes 5 are clamped into the inner clamping groove 4 by mechanical equipment in a tight arrangement mode, when sealing glue is injected into the inner clamping groove 4, the needle table 2 is fixedly installed in a mode that the needle tubes 5 are not in tight contact with each other in a parallel arrangement mode, in the practical use of the sealing glue, the purpose of avoiding the problem that the gap between the liquid medicine needle tubes 5 leaks out can be realized only by filling the gap of the fixing section 9, the needle table 2 is of a cuboid structure, the needle table 2 of the cuboid structure is in a plane when injection operation is carried out, so that the distances between the needle tubes 5 which are fixedly installed on the side wall facing the skin and arranged side by side and the skin are equal, the plurality of needle tubes 5 can simultaneously contact the skin and carry out the injection operation, the needle tubes 5 are arranged in parallel on the needle table 2, the front ends of the needle tubes 5 are provided with needle heads 10, and the inclined planes of the needle heads 10 are consistent, the length of each needle tube 5 exposed out of the containing cavity is equal, the longer the exposed length is, the larger the diameter of the needle tube 5 is, the length of the needle tube 5 exposed out of the containing cavity determines the length of the needle tube 5 penetrating into the skin of a human body, if the penetrated length is longer, the diameter of the needle tube 5 needs to be increased, otherwise, the needle tube 5 is too thin to generate the risk of fracture, specifically, when the diameter of the needle tube 5 is 0.17 mm, 0.186 mm, 0.21 mm and 0.23 mm, the length of the corresponding needle tube 5 exposed out of the containing cavity is respectively 1.2 mm, 1.5 mm, 2.5 mm and 4.0 mm, a positioning groove 11 is arranged on one surface of the needle table 2 departing from the inner clamping groove 4, a corresponding positioning column (not shown in the figure) is arranged on the inner side wall of the containing cavity 3, and the needle table 2 can be conveniently inserted into the containing cavity 3 through the positioning groove 11 and the positioning column.

Example 2

As shown in fig. 1 to 4, this embodiment has the same portions as embodiment 1 except that: the connecting part 6 of the needle base 1 is of a screw structure, and the connecting part 6 is in screw connection with the needle cylinder, so that safe operation between the needle tube 5 and the needle cylinder is facilitated. The two sides of the needle base 1 are symmetrically provided with wing fins 12, the wing fins 12 are used for facilitating the clamping connection of the protective sleeve of the needle base 1 after the protective sleeve is sleeved, the front side of the needle base 1 is provided with positioning fins 13, the positioning fins 13 are provided with chamfers 14, the inclined planes of the chamfers 14 are consistent with the inclined planes of the needle heads 10, the direction of the needle tube 5 can be determined through the positioning fins 13, one end of the needle base 1, which is far away from the connecting part 6, is provided with an auxiliary tangent plane 15, the included angle between the auxiliary tangent plane 15 and the outer side wall of the needle base 1 is 45 degrees, when the injection operation is carried out, the auxiliary tangent plane 15 is firstly pasted on the skin, then the needle base 1 is pushed towards the direction of the needle tube 5, under the propping and blocking effect of the top surface of the needle base 1, the skin on the direction of the needle tube 5 can be wrinkled to form a skin dune, and the needle head 10 is positioned at the front end of the top surface of the needle base 1, therefore, the needle head 10 can complete the intradermal or subcutaneous puncture in the process of forming the skin dune, therefore skin dune boosting structure can play the effect of supplementary medical personnel playing the skin dune and accomplishing intradermal or subcutaneous puncture, and is high-efficient fast, and the outside of connecting portion 6 is equipped with screw thread indicator 16, and when connecting seat and cylinder spiro union of being convenient for, operating personnel can know the rotation direction when separation and screwing up fast.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A microneedle structure characterized by: including needle file (1) and needle platform (2), the one end of needle file (1) is equipped with and holds chamber (3), needle platform (2) are inserted and are located and hold chamber (3) in and be fixed in with the glue encapsulation and hold chamber (3), interior draw-in groove (4) have been seted up to one side of needle platform (2), install needle tubing (5) in interior draw-in groove (4), link firmly through glue between needle tubing (5) and interior draw-in groove (4), the one end of keeping away from and holding chamber (3) of needle file (1) is equipped with connecting portion (6), connecting portion (6) connect the cylinder, the cylinder is linked together with needle tubing (5), interior draw-in groove (4) are including middle joint section (7) and are located entrance section (8) and canned paragraph (9) of joint section (7) both sides.

2. A microneedle structure according to claim 1, characterized in that: entrance section (8) are connected in the front end of joint section (7), canned paragraph (9) are located to be connected in the rear end of joint section (7), the diameter of entrance section (8) is by a lateral opposite side grow gradually that is close to joint section (7), the diameter of canned paragraph (9) is greater than joint section (7).

3. A microneedle structure according to claim 2, characterized in that: the inner clamping grooves (4) are at least arranged in one row, and the number of the inner clamping grooves (4) in each row is 3-5.

4. A microneedle structure according to claim 3, characterized in that: the needle tubes (5) are arranged on the needle table (2) in parallel, needles (10) are arranged at the front ends of the needle tubes (5), the inclined planes of the needles (10) are consistent, the length of each needle tube (5) exposed to the cavity is equal, the exposed length is longer, and the diameter of each needle tube (5) is larger.

5. A microneedle structure according to claim 4, characterized in that: the one side that needle platform (2) deviate from interior draw-in groove (4) is equipped with constant head tank (11), it is equipped with corresponding reference column to hold chamber (3) inside wall.

6. A microneedle structure according to claim 5, characterized in that: the connecting part (6) is of a screw structure, and the connecting part (6) is in screw connection with the needle cylinder.

7. A microneedle structure according to claim 6, characterized in that: the novel needle base is characterized in that wing fins (12) are symmetrically arranged on two sides of the needle base (1), positioning fins (13) are arranged on the front surface of the needle base (1), chamfers (14) are arranged on the positioning fins (13), and the inclined surfaces of the chamfers (14) are consistent with the inclined surfaces of the needles (10).

8. A microneedle structure according to claim 7, characterized in that: one end of the needle seat (1) far away from the connecting part (6) is provided with an auxiliary tangent plane (15), and an included angle between the auxiliary tangent plane (15) and the outer side wall of the needle seat (1) is 45 degrees.

9. A microneedle structure according to claim 8, characterized in that: the groove wall of the clamping section (7) is V-shaped.

10. A microneedle structure according to claim 9, characterized in that: and a thread indication strip (16) is arranged on the outer side of the connecting part (6).