CN215690620U - Insulin syringe - Google Patents

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an insulin syringe which comprises a syringe barrel, a needle head and a plunger piston, wherein the needle head is arranged at the top of the syringe barrel, the plunger piston is arranged inside the syringe barrel, a needle cap is arranged outside the needle head, and the needle cap is connected with the syringe barrel; the outer wall of the injection tube is provided with a sliding groove parallel to the needle head, the bottom of the inner wall of the needle cap is provided with a protrusion matched with the sliding groove, the injection tube is provided with a first positioning groove and a second positioning groove from top to bottom, the first positioning groove and the second positioning groove are identical in structure, the first positioning groove comprises a guide groove and an embedding groove, the guide groove is communicated with the sliding groove, the bottom of one end, away from the sliding groove, of the guide groove is provided with the embedding groove, and the top of the needle cap is provided with a through hole; the syringe does not need to pull off the needle cap when in use, can avoid the needle from stabbing other people when in recovery, can also improve the sterility of the syringe, relieves the pain of patients and is convenient to use.

Description

Insulin syringe

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an insulin syringe.

Background

The incidence of diabetes is increasing, and the diabetes becomes the third killer after cardiovascular and cerebrovascular diseases and tumors, and the diabetes is effectively treated by insulin injection therapy. The existing insulin syringe protects and seals the needle head by a needle cap, but the common needle cap is detachably connected to the syringe in a plug-in manner, so that on one hand, the pulled-out needle cap is easy to roll and fall off, and the exposed pillow of the syringe is easy to cause accidental injury in the recovery process; on the other hand, after the insulin is extracted, the needle is exposed in the air, and the infection of external bacteria and the like is increased virtually.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides the insulin syringe, which does not need to pull out a needle cap, can avoid the needle from stabbing others during recovery, can also improve the sterility of the syringe, reduces the pain of a patient and is convenient to use.

The technical scheme of the utility model is as follows:

an insulin syringe comprises a syringe barrel, a needle head and a plunger piston, wherein the top of the syringe barrel is provided with the needle head, the plunger piston is arranged inside the syringe barrel, the outside of the needle head is provided with a needle cap, and the needle cap is connected with the syringe barrel;

the outer wall of injection tube is equipped with the spout that is on a parallel with the syringe needle, the inner wall bottom of needle cap be equipped with the protruding of spout looks adaptation, the injection tube is equipped with first constant head tank and second constant head tank from top to bottom, and the structure of first constant head tank and second constant head tank is the same, and first constant head tank includes guide way and caulking groove, guide way and spout intercommunication, and the guide way is kept away from spout one end bottom and is equipped with the caulking groove, and the top of needle cap is equipped with the through-hole.

Further, the distance between the first positioning groove and the second positioning groove is 0.5-1 mm. Ensuring the smooth completion of liquid taking and injection.

Furthermore, a plurality of salient points are arranged at the top of the needle cap and are evenly distributed around the circumference of the through hole. The salient points can be pressed and contacted with the nerve endings, so that the pain feeling is covered by stimulating the nerve endings, and the tension of a patient is overcome.

Further, the shape of the protrusion is hemispherical. The smoothness in movement can be increased.

Furthermore, the outer wall of the needle cap is provided with anti-skid grains which are distributed perpendicular to the axis of the needle head. The needle cap is prevented from slipping during operation.

Further, medical sterilized cotton is arranged in the through hole. The needle can be sterilized.

The working principle of the utility model is as follows:

when the liquid taking device is used, the protrusions are moved out of the caulking grooves in the first positioning grooves and enter the sliding grooves through the guide grooves, the needle cap is moved downwards until the needle heads are exposed, the needle cap is rotated, the protrusions enter the caulking grooves through the guide grooves in the second positioning grooves and are clamped tightly, and liquid taking is carried out; then the sealed needle head is operated reversely, after the injection preparation work is finished, the needle head is exposed again for injection, the salient points are contacted with the injection part to press and contact nerve endings, so that the pain feeling is covered by stimulating the nerve endings, and the tension of a patient is overcome; and after the injection is finished, the needle cap is moved back to recover the injector.

The beneficial effect of the utility model is that,

the opening or closing of the needle cap is realized through the mutual matching of the sliding groove, the first positioning groove and the second positioning groove, the needle cap does not need to be pulled out, the needle can be prevented from stabbing others during recovery, and the sterility of the injector can be improved; meanwhile, the originally exposed needle head is partially hidden, so that the tension of the patient is relieved; the salient points are arranged to press and contact the nerve endings, so that the pain feeling is covered by stimulating the nerve endings, and the tension of a patient is overcome; medical aseptic cotton is arranged in the through hole, and the needle head can be sterilized.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an insulin pump provided in example 1;

FIG. 2 is a view showing a state of use of the insulin pump provided in example 1;

FIG. 3 is a schematic view of the structure of the syringe provided in example 1;

FIG. 4 is a schematic structural view of a needle cap provided in example 1;

FIG. 5 is a sectional view of the needle cap provided in example 1;

in the figure, 1, a needle cap; 2. a needle head; 3. an injection tube; 4. a second positioning groove; 5. a plunger; 6. a first positioning groove; 7. a chute; 8. a guide groove; 9. caulking grooves; 10. a through hole; 11. salient points; 12. a sealing plug; 13. medical sterilized cotton; 14. and (4) a protrusion.

Detailed Description

The utility model will be further described with reference to specific examples, but the scope of the utility model is not limited thereto.

Example 1

An insulin syringe comprises an injection tube 3, a needle head 2 and a plunger piston 5, wherein the needle head 2 is arranged at the top of the injection tube 3, the plunger piston 5 is arranged inside the injection tube 3, a needle cap 1 is arranged outside the needle head 2, and the needle cap 1 is connected with the injection tube 3;

the top of the needle cap 1 is provided with a through hole 10, medical sterilized cotton 13 is arranged in the through hole 10, the top of the through hole is provided with a sealing plug 12, eight convex points 11 are uniformly arranged around the circumference of the through hole 10, and the convex points 11 can be pressed and contacted with nerve endings, so that the pain feeling is covered by the stimulation to the nerve endings, and the tension of a patient is overcome; the outer wall of the needle cap 1 is provided with anti-slip grains which are distributed perpendicular to the axis of the needle head, so that the needle cap can be prevented from slipping during operation;

the outer wall of the injection tube 3 is provided with a sliding groove 7 parallel to the needle head 2, the bottom of the inner wall of the needle cap 1 is provided with a protrusion 14 matched with the sliding groove 7, the injection tube 3 is provided with a first positioning groove 6 and a second positioning groove 4 from top to bottom, the distance between the first positioning groove 6 and the second positioning groove 4 is 0.5-1 mm, and the distance is adapted to the depth of the needle head inserted into the skin during injection, so that the top end of the needle cap can be contacted with the skin during injection, the stability during injection can be ensured, and the effect that the salient points are contacted with the skin can be realized; the shape of the protrusion 14 is a hemisphere, and when the needle cap 1 is moved, the hemispherical protrusion 14 can move smoothly in the sliding groove 7, the first positioning groove 6 and the second positioning groove 4;

first constant head tank 6 is the same with the structure of second constant head tank 4, and first constant head tank 6 includes guide way 8 and caulking groove 9, and guide way 8 and 7 intercommunications of spout, 7 one end of spout are kept away from to guide way 8 are equipped with caulking groove 9.

When the needle cap is used, the protrusions 14 are moved out of the embedded grooves 9 in the first positioning grooves 6 and enter the sliding grooves 7 through the guide grooves 8, the needle cap 1 is moved downwards until the needle heads 2 are exposed, the needle cap 1 is rotated, the protrusions 14 enter the embedded grooves through the guide grooves in the second positioning grooves 4 and are clamped tightly, and liquid is taken; then, the sealing needle head 2 is operated reversely, after the injection preparation work is finished, the needle head 2 is exposed again for injection, the salient points 11 are contacted with the injection part to press and contact nerve endings, so that the pain feeling is covered by stimulating the nerve endings, and the tension of a patient is overcome; after the injection is finished, the needle cap 1 is moved back to recover the syringe.

Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. An insulin syringe comprises an injection tube (3), a needle head (2) and a plunger (5), wherein the needle head (2) is arranged at the top of the injection tube (3), the plunger (5) is arranged inside the injection tube (3), a needle cap (1) is arranged outside the needle head (2), and the needle cap (1) is connected with the injection tube (3), the insulin syringe is characterized in that a sliding groove (7) parallel to the needle head (2) is arranged on the outer wall of the injection tube (3), a protrusion (14) matched with the sliding groove (7) is arranged at the bottom of the inner wall of the needle cap (1), a first positioning groove (6) and a second positioning groove (4) are arranged on the injection tube (3) from top to bottom, the first positioning groove (6) and the second positioning groove (4) have the same structure, the first positioning groove (6) comprises a guide groove (8) and an embedding groove (9), the guide groove (8) is communicated with the sliding groove (7), the bottom of one end, far away from the sliding groove (7), of the guide groove (8) is provided with the embedding groove (9), the top of the needle cap (1) is provided with a through hole (10).

2. The insulin pump according to claim 1, characterized in that the distance between the first positioning groove (6) and the second positioning groove (4) is 0.5 to 1 mm.

3. The insulin pump according to claim 1, characterized in that a plurality of salient points (11) are arranged on the top of the needle cap (1), and the salient points (11) are evenly distributed around the circumference of the through hole (10).

4. An insulin pump according to claim 1, characterized in that the protrusions (14) are hemispherical in shape.

5. An insulin pump according to claim 1, characterized in that the outer wall of the needle cap (1) is provided with anti-slip threads which run perpendicular to the needle axis.

6. An insulin pump according to claim 1, characterized in that medical sterile cotton (13) is arranged in the through hole (10).

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