CN215134894U

CN215134894U - Syringe without taking down needle head when liquid is injected

Info

Publication number: CN215134894U
Application number: CN202023096050.4U
Authority: CN
Inventors: 罗清; 张建军
Original assignee: Aimechuang Medical Technology Zhuhai Co ltd
Current assignee: Aimechuang Medical Technology Zhuhai Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-12-14
Anticipated expiration: 2030-12-21

Abstract

An injector without taking down a needle head during liquid injection comprises the needle head, a needle cylinder and a push rod, wherein the side wall of the needle cylinder is provided with scales, the side wall of the needle cylinder is provided with a liquid injection port, and the liquid injection port is positioned behind the tail end of the scales in the axial direction of the needle cylinder; the needle head can be a single needle head or a multi-needle head; the single needle head and the syringe can be connected into a whole. According to the technical scheme, the related dispensing and medicine injecting operations can be simplified, and medicine injection can be realized at one time; the step of taking off the needle head during injection is reduced, the leakage at the joint of the needle head and the needle cylinder is avoided, and the safety and the effectiveness of injection are improved. The injector has the advantages of quick injection for an operator, no need of pulling and inserting a needle head, convenient exhaust of the injector, good injection effect, realization of maximization of economic benefit and application to the fields of common injection and medical injection.

Description

Syringe without taking down needle head when liquid is injected

Technical Field

The utility model belongs to the technical field of the syringe, concretely relates to need not to take off syringe of syringe needle when being annotated.

Background

When the injector in the market injects liquid into the injector, the needle head is taken down and is connected with an injection port of another injector filled with liquid through a two-way joint or a three-way joint, and a push rod of the other injector is pushed to inject the liquid. The structure and the injection mode of the injector can cause more air bubbles to enter in the injection process, and the fundamental reason is that the syringes of the two injectors are closed, and the injection can be carried out only by taking off the needle head. And because the step of taking off the needle head exists, leakage at the joint of the needle head and the syringe is easy to occur after long-term use. Therefore, there is a need for a syringe that does not require removal of the needle when being filled to improve the safety and effectiveness of the injection.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above-mentioned problem, provide a need not to take off syringe needle when being annotated liquid syringe.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a need not to take off syringe of syringe needle when being annotated liquid, includes syringe needle, cylinder, push rod, be equipped with the scale on the lateral wall of cylinder, be equipped with on the lateral wall of cylinder and annotate the liquid mouth, it is located behind the tail end of scale to annotate the liquid mouth in the axial of cylinder.

Furthermore, the liquid injection port is horn-shaped.

Further, the needle may be a single needle. Furthermore, the needle and the syringe are connected into a whole. Specifically, the needle head comprises a needle tube, and the needle tube is fixed at the head end of the needle tube through dispensing.

Further, the needle may be a multi-needle. Furthermore, the syringe needle includes a plurality of needle tubes, a reposition of redundant personnel seat, a needle file, and is a plurality of the needle tube is fixed in on the reposition of redundant personnel seat, the reposition of redundant personnel seat is installed in the needle file, the needle file is installed in the head end of cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: the related medicine dispensing and injecting operations can be simplified, the past liquid injection operation needs to be repeated for many times after an operator adjusts the medicine and stands, and the medicine injection can be realized once by using the scheme; the step of taking off the needle head during liquid injection is reduced, liquid leakage at the joint of the needle head and the needle cylinder is avoided, the safety and the effectiveness of injection are improved, and aiming at the point, the needle head and the needle cylinder can be designed into a whole by the single-needle injector, so that the cost is further reduced, and the stability is improved. To sum up, adopt this technical scheme's syringe, the operator annotates the liquid fast, need not pull out the plug needle head, and the syringe exhausts conveniently, has good notes liquid effect, has realized economic interests maximize, can be applied to ordinary injection field, the medical and American injection field.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a cross-sectional view a-a of fig. 1.

Fig. 3 is another schematic structural diagram of embodiment 1 of the present invention.

Fig. 4 is a cross-sectional view of B-B in fig. 1.

Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 6 is a cross-sectional view of C-C in fig. 1.

The parts in the figures are numbered as follows:

1 needle tube

2 needle cylinder

201 liquid filling opening

3 push rod

4 shunting seat

5 needle seat.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.

Example 1

Referring to fig. 1 to 4, the syringe which can be injected without taking off the needle comprises the needle, a syringe 2 and a push rod 3.

The needle head is arranged at the head end of the needle cylinder 2, is a single needle head and comprises a needle tube 1. Because this technical scheme's syringe need not to take off the syringe needle when being annotated liquid, syringe needle and cylinder 2 can design as an organic whole structure to reduce cost and improvement stability, so in this embodiment, needle tubing 1 is fixed in the head end of cylinder 2 through the point glue.

The side wall of the syringe 2 is provided with a scale and a liquid injection port 201. The scale is used for indicating the liquid volume in the needle cylinder 2; the injection port 201 is used for injecting liquid into the syringe 2, the injection port 201 is located behind the tail end of the scale in the axial direction of the syringe 2, the position of the tail end of the scale can refer to a dotted line mark a in fig. 2, and the injection port 201 can be horn-shaped.

The head end of the push rod 3 is provided with a piston structure and is loaded into the needle cylinder 2 from the tail end of the needle cylinder 2.

The using method of the injector comprises the following steps:

s1 referring to FIGS. 1 and 2, the syringe 2 of the present injector is held and the plunger 3 is pulled backward so that the tip end of the plunger 3 is pulled to the rear of the injection port 201 in the side wall of the syringe 2.

S2, the injection port of another syringe (not shown) filled with liquid is butted with the liquid injection port 201 on the side wall of the cylinder 2 of the syringe, and the plunger of the other syringe is slowly pushed to inject liquid into the cylinder 2 of the syringe. In the process of injecting liquid into the cylinder 2 of the injector, the gas in the cylinder 2 of the injector is discharged out of the cylinder 2 through the needle tube 1, and a good injection effect is obtained.

S3, referring to fig. 3 and 4, the plunger 3 of the injector is pushed directly without removing the other injector, so that the tip end of the plunger 3 advances through the injection port 201 in the side wall of the cylinder 2, and the air discharge and injection operations are performed as in the conventional injector, before the injection port 201 in the axial direction of the cylinder 2.

S4, after the injection operation is finished by using the syringe, the other syringe can be taken down from the liquid injection port 201 of the syringe.

Example 2

Referring to fig. 5 and 6, the syringe for injecting liquid without taking off the needle comprises the needle, a syringe 2 and a push rod 3. The difference with embodiment 1 lies in, the syringe needle is many needles syringe needle, including a plurality of needle tubes 1, reposition of redundant personnel seat 4, needle file 5, and a plurality of needle tubes 1 are fixed in reposition of redundant personnel seat 4 through the point glue on, and reposition of redundant personnel seat 4 is installed in needle file 5, and needle file 5 is installed in the head end of needle cylinder 2.

The method for using the same is as in embodiment 1 and will not be described again.

It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.

Claims

1. The utility model provides a need not to take off syringe of syringe needle when being annotated liquid, includes syringe needle, cylinder, push rod, be equipped with the scale on the lateral wall of cylinder, its characterized in that, be equipped with on the lateral wall of cylinder and annotate the liquid mouth, annotate the liquid mouth and lie in behind the tail end of scale in the axial of cylinder.

2. The syringe of claim 1, wherein the injection port is flared.

3. The syringe of claim 1 or 2, wherein the needle is a single needle without removal of the needle.

4. The syringe of claim 3, wherein the needle and barrel are integrally connected.

5. The syringe of claim 4, wherein the needle comprises a tube secured to the head end of the barrel by adhesive.

6. The syringe of claim 1 or 2, wherein the needle is a multiple needle without removing the needle.

7. The syringe of claim 6, wherein the needle comprises a plurality of needles, a shunt seat, and a needle seat, wherein the plurality of needles are fixed on the shunt seat, the shunt seat is mounted in the needle seat, and the needle seat is mounted at the head end of the needle cylinder.