CN219630335U

CN219630335U - Press type needle tube

Info

Publication number: CN219630335U
Application number: CN202222456062.6U
Authority: CN
Inventors: 张雨倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-09-05
Anticipated expiration: 2032-09-16

Abstract

The utility model provides a push-type needle tube, which comprises a tube body and a needle head, wherein the tube body comprises a first tube body and a second tube body, the second tube body is movably arranged in the first tube body, the needle head is positioned at the bottom end of the second tube body and can extend out of or retract from the bottom end of the first tube body, a piston handle is movably arranged in the second tube body, a telescopic control part is arranged between the first tube body and the second tube body and used for controlling the telescopic motion of the second tube body relative to the first tube body, and the top ends of the piston handle and the telescopic control part extend out of the top end of the first tube body. The utility model can control the extension and retraction of the needle head like the operation mode of pressing the cylindrical pen, thereby avoiding the hand injury caused by the needle head due to inertia effect, simultaneously the needle head is contacted with the alcohol sterilizing cotton in the telescoping process, the sterilization can be carried out to a certain extent, the risk of cross infection is reduced, and the alcohol sterilizing cotton and the needle head are convenient to replace.

Description

Press type needle tube

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a push-type needle tube.

Background

With the continuous improvement of the living standard of people, more and more patients with three highs appear in families, so that people with diabetes are increasingly more, and for the treatment of the diabetes, insulin injection is needed, and the use of a needle tube is not unfamiliar at this time.

The needle tube sold in the market needs to be assembled by a user, and when the needle tube is used, time is sometimes wasted because of the need of assembling the disposable needle tube; when the needle tube is used, the needle tube needs to be disinfected for a plurality of times, and especially for patients with home needle tubes, the disinfection of the needle tube is a quite notable sanitary and safe problem, and the time is wasted to find out how to disinfect and replace the needle tube; during use, the user sometimes gets his hands pricked by the needle due to inertia when pulling out the cap.

Disclosure of Invention

The purpose of the utility model is that: aiming at the defects in the background technology, a push-type needle tube is provided.

The push-type needle tube comprises a tube body and a needle head, wherein the tube body comprises a first tube body and a second tube body, the second tube body is movably arranged in the first tube body, the needle head is positioned at the bottom end of the second tube body and can extend out of or retract from the bottom end of the first tube body, a piston handle is movably arranged in the second tube body, a telescopic control part is arranged between the first tube body and the second tube body, the telescopic control part is used for controlling the second tube body to stretch out and draw back relative to the first tube body, and the top ends of the piston handle and the telescopic control part extend out of the top end of the first tube body.

Further, the telescopic control part comprises an upper tooth column, a lower tooth column and a guide rail, wherein the guide rail is fixedly connected with the first pipe body, the lower tooth column is fixedly connected with the top end of the second pipe body, meanwhile, the second pipe body is elastically connected with the first pipe body, the upper tooth column is movably arranged in the first pipe body and is elastically connected with the first pipe body, and the upper tooth column, the lower tooth column and the guide rail are mutually matched.

Further, the upper tooth column is elastically connected with the first pipe body through a first spring, the first spring is located on the upper portion of the first pipe body, the second pipe body is elastically connected with the first pipe body through a second spring, and the second spring is located on the lower portion of the first pipe body.

Further, the telescopic control part further comprises a needle cap, and an annular groove corresponding to the needle cap is formed in the top end of the upper tooth column.

Further, the needle cap can cap the top end of the piston handle.

Further, the top end of the first pipe body is also provided with a buckle.

Further, the bottom end of the first pipe body is also provided with disinfection cotton which is stained with alcohol.

The scheme of the utility model has the following beneficial effects:

the push-type needle tube provided by the utility model can control the extension and retraction of the needle head in an operation mode similar to that of a push-type cylindrical pen, so that when the piston handle needs to be pulled out to be filled with liquid medicine, the needle head can be retracted into the first tube body, and the hand injury caused by the inertia effect of the needle head is avoided;

in the utility model, the needle head is contacted with the alcohol disinfection cotton in the telescoping process, so that the disinfection can be performed to a certain extent, the risk of cross infection is reduced, and the alcohol disinfection cotton and the needle head are convenient to replace;

other advantageous effects of the present utility model will be described in detail in the detailed description section which follows.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the inner structure of a first tube according to the present utility model;

fig. 3 is a schematic diagram of the expansion control part of the present utility model (before pressing, an expanded view);

FIG. 4 is a schematic view of the expansion control part of the present utility model (push-out, expanded view);

FIG. 5 is a schematic view of the expansion control part of the present utility model (extended fixed, expanded view);

fig. 6 is a schematic view of the expansion and contraction control part of the present utility model (push ready to retract, expanded view).

[ reference numerals description ]

1-a needle; 2-a first tube; 3-a second tube; 4-a piston stem; 5-upper tooth column; 6-lower tooth column; 7, a guide rail; 8-a first spring; 9-a second spring; 10-upper guide grooves; 11-inclined plane; 12-limiting side surfaces; 13-a lower guide groove; 14-needle cap; 15-clamping buckle; 16-sterilizing cotton; 17-screw cap.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by different combinations of features/embodiments, where not contradictory, and various possible combinations of features/embodiments in the present utility model are not described further in order to avoid unnecessary repetition.

It should be noted that the terms "disposed" and "connected" should be construed broadly, and may be, for example, directly disposed, mounted, connected, or indirectly disposed, connected through a central element or central structure. In addition, the directions or positional relationships indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. in the present utility model are directions or positional relationships based on the drawings or the conventional placement state or use state, are merely for convenience of description of the present utility model and for simplification of description, and do not indicate or imply that the structures, features, devices or elements to be referred to must have specific directions, be configured and operated in specific directions, and thus are not to be construed as limiting the present utility model.

As shown in fig. 1-3, an embodiment of the present utility model provides a push-type needle tube, which includes a tube body and a needle 1, wherein the tube body has a double-layer tube structure, and includes a first tube body 2 and a second tube body 3, the second tube body 3 is movably disposed in the first tube body 2, and is used as a container of injection, the needle 1 is disposed at a bottom end of the second tube body 3, and can extend or retract from the bottom end of the first tube body 2 when the second tube body 3 moves relative to the first tube body 2.

A piston handle 4 is movably arranged in the second tube body 3, and the piston handle 4 is similar to a common needle tube in the prior art and is used for pressing injection liquid medicine.

A telescopic control part is arranged between the first pipe body 2 and the second pipe body 3, the telescopic control part is used for controlling the second pipe body 3 to stretch out and retract relative to the first pipe body 2 so as to control the extension or retraction of the needle head 1, and the top ends of the piston handle 4 and the telescopic control part extend out of the top end of the first pipe body 2.

Therefore, the push-type needle tube provided in this embodiment has two independent control processes, one of which is the movement of the second tube 3 and the needle 1 relative to the first tube 2, so that the needle 1 extends or retracts from the first tube 2, and the other is the movement of the piston handle 4, so that the piston handle 4 can be completely pulled out of the second tube 3 to be filled with the liquid medicine, and the piston handle 4 is pressed to inject the liquid medicine. Therefore, when the piston handle 4 needs to be drawn out to be filled with liquid medicine, the needle head 1 can be retracted into the first tube body 2, and hand injuries and the like caused by inertia action of the needle head 1 are avoided.

In this embodiment, the expansion and contraction control portion includes an upper tooth post 5, a lower tooth post 6, and a guide rail 7, where the guide rail 7 is fixedly connected to the first pipe body 2, and preferably integrally formed with an inner wall of the first pipe body 2. The lower tooth column 6 is fixedly connected with the top end of the second pipe body 3, meanwhile, the second pipe body 3 is elastically connected with the first pipe body 2, and the upper tooth column 5 is movably arranged in the first pipe body 2 and elastically connected with the first pipe body 2.

The upper tooth column 5 is elastically connected with the first pipe body 2 through a first spring 8, the first spring 8 is located on the upper portion of the first pipe body 2, the second pipe body 3 is elastically connected with the first pipe body 2 through a second spring 9, and the second spring 9 is located on the lower portion of the first pipe body 2.

Referring to fig. 3 to 6, the upper tooth post 5, the lower tooth post 6 and the guide rail 7 cooperate with each other in a manner similar to the ball-point pen pressing mechanism: when the upper toothed column 5 is pressed, the upper toothed column 5 pushes the lower toothed column 6 to move downwards, the first spring 8 is compressed, and the lower toothed column 6 compresses the second spring 9. When the upper tooth post 5 moves down to the limit position, the top end of the upper guide groove 10 contacts with the top end of the guide rail 7 and cannot move down continuously, at this time, the top end of the lower tooth post 6 contacts with the bottom end of the guide rail 7, and because the bottom end of the guide rail 7 is an inclined plane 11 (the bottom end of the upper tooth post is also an inclined plane), the lower tooth post 6 rotates up along the inclined plane 11 under the action of the second spring 9, and the lower tooth post 6 rotates to the limit side 12 to contact with the side wall of the guide rail 7 and cannot move up continuously in the resetting process of the upper tooth post 5 through the first spring 8, so that the corresponding position is maintained, and the needle 1 extends out of the first tube body 2.

When the needle 1 needs to be retracted, the upper toothed column 5 is pressed again, after the upper toothed column 5 drives the lower toothed column 6 to move downwards, the bottom end of the guide rail 7 can be higher than the limit side 12 of the lower toothed column 6, so that the lower toothed column 6 continues to move along the inclined plane of the bottom end of the guide rail 7 under the action of the second spring 9, and finally the guide rail 7 is aligned with the lower guide groove 13 of the lower toothed column 6, so that the lower toothed column 6 moves upwards to reset under the action of the second spring 9, the guide rail 7 is clamped into the lower guide groove 13, and the retraction of the needle 1 is completed.

The center of the lower tooth post 6 is provided with a channel which is integrally communicated with the inside of the second tube body 3, so that the process of injecting the liquid medicine is not hindered, and the upper tooth post 5 is of a sleeve structure, and the process of injecting the liquid medicine is not hindered.

As a further improvement, the telescopic control part in this embodiment further includes a needle cap 14, the top end of the upper tooth post 5 is provided with an annular groove corresponding to the needle cap 14, the upper tooth post 5 is made of a material with a certain elasticity, and the lower edge of the needle cap 14 is directly fixed by means of elastic force after being inserted, so that the disassembly is convenient.

The needle cap 14 can cover the top end of the piston handle 4, so that the piston handle 14 is prevented from being touched by mistake to inject the liquid medicine, and the needle cap 14 is pressed to extend the needle head when the liquid medicine is needed to be injected, and the needle cap 14 is taken down.

As a further improvement, in this embodiment, the top end of the first tube body 2 is further provided with a buckle 15, which is similar to a structure of a pen buckle, and is convenient to carry.

As a further improvement, in this embodiment, the bottom end of the first tube 2 is further provided with an alcohol-contaminated sterilizing cotton 16, and when the needle 1 is pushed to extend, the needle 1 can be contacted with alcohol to complete sterilization, and the needle 1 needs to be replaced after several uses. In this embodiment, the bottom end of the first tube body 2 is provided with the cap 17, and the alcohol sterilizing cotton 16 and the needle 1 can be conveniently replaced after the cap 17 is opened.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a push type needle tubing, includes body and syringe needle (1), its characterized in that, the body includes first body (2) and second body (3), second body (3) activity sets up in first body (2), syringe needle (1) are located the bottom of second body (3), can stretch out or follow the bottom withdrawal of first body (2), second body (3) internalization is provided with piston handle (4), first body (2) with flexible control portion has been laid between second body (3), flexible control portion is used for control second body (3) for the flexible of first body (2), piston handle (4) and the top of flexible control portion all extends the top of first body (2).

2. A push-type needle tube according to claim 1, wherein the telescopic control part comprises an upper toothed column (5), a lower toothed column (6) and a guide rail (7), the guide rail (7) is fixedly connected with the first tube body (2), the lower toothed column (6) is fixedly connected with the top end of the second tube body (3), meanwhile, the second tube body (3) is elastically connected with the first tube body (2), the upper toothed column (5) is movably arranged in the first tube body (2) and elastically connected with the first tube body (2), and the upper toothed column (5), the lower toothed column (6) and the guide rail (7) are mutually matched.

3. A push-on needle cannula according to claim 2, characterized in that the upper toothed column (5) is elastically connected with the first tube body (2) by a first spring (8), the first spring (8) is located at the upper part of the first tube body (2), the second tube body (3) is elastically connected with the first tube body (2) by a second spring (9), and the second spring (9) is located at the lower part of the first tube body (2).

4. A push-type needle cannula according to claim 2, characterized in that the telescoping control part further comprises a needle cap (14), and the top end of the upper tooth post (5) is provided with an annular groove corresponding to the needle cap (14).

5. A push-on needle cannula according to claim 4, characterized in that the needle cap (14) is capable of closing the tip of the plunger shaft (4).

6. A push-on needle cannula according to claim 1, characterized in that the top end of the first tube body (2) is further provided with a catch (15).

7. A push-on needle cannula according to claim 1, characterized in that the bottom end of the first tube body (2) is further provided with alcohol-impregnated sterile cotton.