Telescopic structure device of microneedle head

Abstract

The utility model relates to the technical field of microneedles, and discloses a telescopic structure device of microneedle needles, which comprises a housing and a needle seat, a plurality of needles are arranged on the needle seat, a rotating cylinder is rotatably inserted in the housing, a liquid storage cavity with the same inner diameter as the rotating cylinder is arranged on the needle seat, the liquid storage cavity is inserted in the rotating cylinder, and the rotating cylinder is provided with a liquid outlet. A plug pin is fixedly arranged on the outer wall of the liquid storage cavity, a spiral sliding groove is formed in the barrel wall of the rotary barrel, the plug pin is inserted into the sliding groove, a cover plate is arranged at the top of the rotary barrel, a plurality of positioning tooth grooves are formed in the inner wall of the cover plate in a circumferential array mode, and a positioning assembly used for fixing the position of a needle seat is arranged on the housing. The pillow is telescopic, different pillow lengths can be adjusted, different use requirements are met, meanwhile, the needle head is stored in a contracted mode in the unused state and does not make contact with the outside, and the use safety is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a microneedle technical field, specifically is a kind of telescopic structure device of microneedle needle head. BACKGROUND

[0002] Microneedle is a kind of innovative medical beauty technology, utilizes microneedle roller or electric microneedle device to make a large number of small channels on skin surface, to stimulate skin and promote absorption of effective component, with the efficacy of improving wrinkle, whitening and freckle removal, repairing scar etc.

[0003] Traditional microneedle needle head is fixed, its length is set value when factory, cannot telescopic adjustment length, so when carrying out different demand treatment, different length microneedle needle head type will be selected, and traditional microneedle needle head is exposed, there is certain sanitary safety, microneedle needle head needs to penetrate skin epidermis, so there is certain safety risk when using. UTILITY MODEL CONTENT

[0004] (I), the technical problem solved

[0005] The utility model solves the technical problem that the above-mentioned needle head cannot be telescopic adjustment, and provides a telescopic structure device of microneedle needle head.

[0006] (II), technical scheme

[0007] To solve the above technical problem, the utility model provides a technical scheme: a telescopic structure device of microneedle needle head, including cover shell and needle seat, the needle seat is equipped with a plurality of needle heads, the cover shell is rotatably inserted with rotating cylinder body, the needle seat is equipped with the same inner diameter of liquid storage cavity as rotating cylinder body, the liquid storage cavity is inserted in rotating cylinder body, the outer wall of liquid storage cavity is fixed with the latch, the rotating cylinder body wall is equipped with the spiral slide groove, the latch is inserted in the slide groove, the rotating cylinder body top is equipped with the cover plate, the cover plate inner wall is circumferentially equipped with a plurality of positioning tooth grooves, the cover shell is equipped with the positioning assembly for fixing the position of needle seat.

[0008] As an improvement: the inner wall of cover shell is equipped with limiting slot, the latch is slid through one end of slide groove and located in limiting slot, and the width of limiting slot and slide groove is the same as the diameter of latch, limiting slot limits the movement range of liquid storage cavity, so that liquid storage cavity can only do telescopic movement along limiting slot, to avoid rotating with rotating cylinder body.

[0009] As an improvement: the positioning assembly includes positioning rod matched with positioning tooth groove, and the contact surface of positioning rod and positioning tooth groove is arc surface structure, the outer wall of cover shell is equipped with sleeve shell, the positioning rod is connected in sleeve shell through telescopic spring, and the positioning rod can be constantly clamped in positioning tooth groove during the rotation of rotating cylinder body under the action of telescopic spring, to fix the position of rotating cylinder body.

[0010] As improvement: the bottom of the cover is clamped below the needle seat and provided with a protective plate, a plurality of protective tubes matched with the needle are arranged on the protective plate, the inner diameter of the protective tube is larger than the diameter of the needle, the needle is retracted in the protective tube when not in use, the contact with the outside is reduced, and the safety of the use of the needle is ensured.

[0011] As improvement: the top of the liquid storage cavity is provided with a connecting pipe, a plurality of liquid outlet holes are uniformly arranged on the needle seat and communicated with the liquid storage cavity, the connecting pipe can be connected with the instrument, and the liquid outlet hole can be used to guide the liquid into the instrument when penetrating.

[0012] (Three), beneficial effects

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The device is matched with the spiral chute through the bolt, the bolt slides along the chute under the limitation of the limiting groove when the cover plate drives the rotary cylinder to rotate, the liquid storage cavity extends out of the rotary cylinder, the extension and retraction of the pillow are realized, the length of the extended pillow can be fixed through the setting of the positioning assembly, the retraction is avoided, the telescopic design can be adjusted according to the treatment requirement, meanwhile, the pillow is avoided from being exposed outside, and the risk of pollution is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure diagram of the telescopic structure device of the microneedle needle.

[0016] Figure 2 It is Figure 1 The explosion structure diagram in the.

[0017] Figure 3 It is Figure 1 The structure diagram of the needle seat and rotary cylinder assembly in.

[0018] Figure 4 It is Figure 3 The structure diagram of the local part A in.

[0019] Figure 5 It is Figure 1 The cover structure diagram in.

[0020] Figure 6 It is Figure 1 The partial section structure diagram of the sleeve shell in.

[0021] As shown in the figure: 1, cover; 2, needle seat; 3, rotating cylinder; 4, liquid storage cavity; 5, bolt; 6, sliding slot; 7, cover plate; 8, positioning tooth groove; 9, limiting groove; 10, positioning rod; 11, cover; 12, extension spring; 13, guard plate; 14, protective tube; 15, connecting pipe. DETAILED DESCRIPTION

[0022] The utility model will be made further detailed description in combination with the drawings. Same parts are indicated with same reference numerals in the drawings.

[0023] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular component.

[0024] In order to make the content of the utility model more easily understood clearly, the technical solutions in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments.

[0025] Embodiment one

[0026] In combination with the drawings, Figures 1 to 3 , Figure 5 As shown in the figure: 1, cover; 2, needle seat; 3, rotating cylinder; 4, liquid storage cavity; 5, bolt; 6, sliding slot; 7, cover plate; 8, positioning tooth groove; 9, limiting groove; 10, positioning rod; 11, cover; 12, extension spring; 13, guard plate; 14, protective tube; 15, connecting pipe.

[0027] In combination with the drawings, Figure 4 and Figure 6 As shown in the figure: 1, cover; 2, needle seat; 3, rotating cylinder; 4, liquid storage cavity; 5, bolt; 6, sliding slot; 7, cover plate; 8, positioning tooth groove; 9, limiting groove; 10, positioning rod; 11, cover; 12, extension spring; 13, guard plate; 14, protective tube; 15, connecting pipe.

[0028] If the needle is used, only need to rotate the cover plate 7 in the counterclockwise direction, because the one end of the latch 5 is inserted into the limiting groove 9, and the latch 5 is slidingly arranged in the sliding groove 6, so the latch 5 slides out of the rotating cylinder 3 along the direction of the sliding groove 6 when the rotating cylinder 3 rotates, the needle is extended, at the same time, the positioning rod 10 is constantly stretched and contracted and clamped in the corresponding positioning tooth groove 8 under the action of the extension spring 12, the current position of the needle is fixed, to ensure the stability of the needle during use, similarly, rotating the cover plate 7 clockwise can realize the contraction of the needle.

[0029] The utility model discloses a needle cover Figure 2 As shown in the drawings, the bottom of the cover 1 is clamped below the needle seat 2 and is provided with a protective plate 13, the protective plate 13 is provided with a plurality of protective tubes 14 matched with the needle, the inner diameter of the protective tube 14 is greater than the diameter of the needle, in the normal non-use state, the needle is retracted in the protective tube 14, reducing the contact with the outside world, ensuring the safety of the needle use.

[0030] The utility model discloses a needle cover Figure 3 As shown in the drawings, the top of the liquid storage cavity 4 is provided with a connecting pipe 15, the needle seat 2 is uniformly arrayed with a plurality of liquid outlet holes, and the liquid outlet holes are communicated with the liquid storage cavity 4, the connecting pipe 15 can be connected with the instrument, and the setting of the liquid outlet hole can synchronously introduce the liquid medicine when penetrating.

[0031] The above describes the utility model and its implementation mode, which is not limited, and the drawings shown are only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if the ordinary skilled person in the art is inspired, without departing from the creative purpose of the utility model, without creative design, the similar structure mode and embodiment of the technical scheme should belong to the protection scope of the utility model.

Claims

1. A telescopic structure device for a microneedle tip, comprising a housing (1) and a needle holder (2), wherein the needle holder (2) is provided with a plurality of needle tips, characterized in that: The housing (1) is rotatably inserted into a rotating cylinder (3). The needle seat (2) is provided with a liquid storage cavity (4) with the same inner diameter as the rotating cylinder (3). The liquid storage cavity (4) is inserted into the rotating cylinder (3). A pin (5) is fixed on the outer wall of the liquid storage cavity (4). The rotating cylinder (3) is provided with a spiral groove (6). The pin (5) is inserted into the groove (6). The top of the rotating cylinder (3) is provided with a cover plate (7). The inner wall of the cover plate (7) is provided with a plurality of positioning tooth grooves (8) arranged in a circular array. The housing (1) is provided with a positioning component for fixing the position of the needle seat (2).

2. The telescopic structure device for a microneedle tip according to claim 1, characterized in that: The inner wall of the cover (1) is provided with a limiting groove (9), and the pin (5) slides through one end of the slide groove (6) and is located in the limiting groove (9). The width of the limiting groove (9) and the width of the slide groove (6) are the same as the diameter of the pin (5).

3. The telescopic structure device for a microneedle tip according to claim 1, characterized in that: The positioning component includes a positioning rod (10) that cooperates with the positioning tooth groove (8), and the contact surface between the positioning rod (10) and the positioning tooth groove (8) is an arc surface structure. The outer wall of the cover (1) is provided with a sleeve (11), and the positioning rod (10) is connected and disposed in the sleeve (11) through a telescopic spring (12).

4. The telescopic structure device for a microneedle tip according to claim 1, characterized in that: The bottom of the cover (1) is fitted with a protective plate (13) below the needle seat (2). The protective plate (13) is provided with a plurality of protective tubes (14) that are adapted to the needle. The inner diameter of the protective tubes (14) is larger than the diameter of the needle.

5. The telescopic structure device for a microneedle tip according to claim 1, characterized in that: The top of the liquid storage cavity (4) is provided with a connecting pipe (15), and the needle seat (2) is provided with a plurality of liquid outlet holes evenly arranged, and the liquid outlet holes are connected to the liquid storage cavity (4).

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