CN219783202U - Syringe connector and anti-overflow liquid syringe - Google Patents

Abstract

The utility model discloses a syringe connector and an anti-overflow syringe, which include a syringe at one end and a connector at the other end. The syringe includes a needle tube at one end close to the syringe connector and an injection tube at an end away from the syringe connector. The syringe One end of the connector is open, and the syringe connector includes a syringe connector at the open end, a middle portion connecting the thin tube and a sealed nozzle at the top of the thin tube, and a rubber gasket is provided inside the sealed nozzle; the syringe connector and syringe needle of the present invention Some adopt different connection methods, which can better seal the syringe connector and prevent the liquid in the syringe connector from leaking. The side wings of the connection part are set in the circumferential direction of the outer wall of the syringe, and the side wings can be used to tighten the thread and seal the nozzle. A rubber gasket is installed on the inside, which can greatly reduce the leakage of liquid in the syringe. It has a simple structure and is easy to use.

Description

A syringe connector and an anti-overflow syringe

Technical field

The utility model relates to the technical field of medical supplies, in particular to a syringe connector and an anti-overflow syringe.

Background technique

At present, in the drug dispensing process of the intravenous drug dispensing center, due to clinical needs, the finished drug solution is often mixed into 1ml, 2ml, 5ml, 10ml, 20ml, and 50ml syringes. In actual work, when the prepared syringes are manually transported to the floor, the needle cap may fall off, people may be accidentally injured by the needle, or there may be overflow from the needle cap. Due to the particularity of some drugs, this overflow may occur. Personnel and environmental pollution, in order to avoid such accidents, a safer and more convenient solution is needed to solve the above problems at work.

Utility model content

In order to solve the above technical problems, the utility model provides an anti-overflow syringe, which has a simple structure, is convenient and safe to use.

This utility model adopts the following technical solutions:

A syringe connector, including a connector, one end of which is open, the connector includes a syringe connection part at the open end, and a closed nozzle connecting the thin tube and the top of the thin tube in the middle part, and a matching needle tube is arranged inside the closed nozzle Head rubber gasket.

Preferably, the syringe connection part is in the shape of a cone with an opening end that is thicker than the opening end and is thinner than the opening end, and a plurality of plastic sheet-shaped side wings are circumferentially provided on the outer wall of the syringe connection part.

Preferably, the inner diameter of the connecting thin tube is the same as the inner diameter of the side of the syringe connection part away from the open end.

Preferably, the connecting thin tube is a PVC plastic pipe, and the length of the connecting thin tube is 4.5-7.5cm.

Preferably, the entire syringe connector is made of transparent material.

An anti-overflow syringe, including the above-mentioned syringe connector, and a syringe at the other end. The syringe includes a needle tube at one end close to the syringe connector and a syringe tube at an end far away from the syringe connector. The syringe body and connector The body is sealed through a connecting mechanism.

Preferably, the connection mechanism includes an external thread provided on the outer wall of the needle tube and an internal thread provided on the inner wall of the opening end of the syringe connection part.

Preferably, the number of external threads on the outer wall of the needle tube and the internal threads on the inner wall of the opening end of the syringe connection part is no more than three.

Preferably, the connection mechanism includes a number of protrusions spaced at intervals on the outer wall of the needle tube, a number of wedge-shaped resisting blocks provided at the bottom end of the side wall of the needle tube, and a J-shaped positioning groove provided on the outer wall of the syringe connection portion to cooperate with the protrusions. .

Compared with the existing technology, this utility model has the following advantages:

1. The syringe connector and the syringe needle part of the present utility model are connected in different ways, which can better seal the syringe connector and prevent the liquid in the syringe connector from leaking. The side wings of the connection part are arranged in the circumferential direction of the outer wall of the syringe. The thread can be tightened by using the side wings, and a rubber gasket is provided inside the sealed nozzle, which can greatly reduce the leakage of liquid in the syringe. It has a simple structure and is easy to use.

2. The syringe connector of the present invention has a two-stage shape. The syringe connector is tapered and the inner diameter of the open end is larger than the inner diameter of the connecting tube. Even if the liquid leaks from the needle tube, there will be no accumulation of liquid and flow out of the syringe connector. .

Description of the drawings

Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

Figure 2 is a schematic structural diagram of the syringe connector of the present invention.

Figure 3 is a schematic structural diagram of another embodiment of the present invention.

In the figure, syringe body 1, needle tube 11, syringe tube 12, connector body 2, syringe connection part 21, connecting thin tube 22, closed nozzle 23, rubber gasket 3, bump 4, resistance block 5, J shape Positioning slot 6.

Detailed ways

In order to facilitate understanding of the technical solution of the present invention, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

Example 1:

As shown in Figures 1 and 2, the utility model discloses a syringe connector and an anti-overflow syringe, including a syringe body 1 at one end and a connector body 2 at the other end. The syringe body 1 includes a needle tube close to one end of the syringe connector. 11 and an injection tube 12 at one end away from the syringe connector. One end of the connector body 2 is open. The connector body 2 includes a syringe connection part 21 at the open end, a connecting thin tube 22 in the middle part, and a closed orifice 23 at the top of the thin tube. A rubber gasket 3 is provided inside the sealed nozzle.

The syringe connecting part 21 is in the shape of a cone with an opening end that is thicker and narrower than the opening end. Two plastic sheet-shaped side wings 211 are provided on the outer wall of the syringe connecting part 21 opposite to each other.

The outer wall of the needle tube is provided with external threads, and the inner wall of the open end of the syringe connecting portion 21 is provided with internal threads.

The number of external threads on the outer wall of the needle tube and the internal threads on the inner wall of the open end of the syringe connecting portion 21 is no more than three.

The inner diameter of the connecting thin tube 22 is the same as the inner diameter of the side of the syringe connecting portion 21 away from the open end.

The connecting thin tube 22 is a PVC plastic pipe, and the length of the connecting thin tube 22 is 5 cm.

The entire syringe connector body 2 is made of transparent material.

Example 2:

As shown in Figure 3, the connection mechanism includes a number of bumps 4 spaced apart on the outer wall of the needle tube 11, a number of wedge-shaped resisting blocks 5 provided on the bottom end of the side wall of the needle tube 11, and a plurality of wedge-shaped resisting blocks 5 provided on the outer wall of the syringe connection part 21. The protrusions 4 fit into the J-shaped positioning grooves 6 . The rest is the same as in Embodiment 1.

When using this embodiment, you only need to squeeze the resisting block to the right to deform the resisting block, rotate the connector body until the protruding point reaches the opening of the J-shaped positioning groove, and continue to rotate the connector until the protruding point reaches the J-shaped positioning groove. At the lower apex, the seal between the syringe connector and the syringe can be achieved.

Example 3:

Three plastic sheet-shaped side wings 211 are arranged at even intervals on the outer wall of the syringe connecting portion 21 in the circumferential direction. The rest is the same as in Embodiment 1.

The above are only preferred embodiments of the present utility model. The protection scope of the present utility model is subject to the scope defined by the claims. Several improvements and modifications may be made by those skilled in the art without departing from the spirit and scope of the present utility model. It should also be regarded as the protection scope of the present utility model.

Claims (9)

1. The utility model provides a syringe connector, its characterized in that includes connector body (2), connector body (2) one end opening, connector body (2) are including syringe connecting portion (21) of open end, the sealed mouth of pipe (23) on the connection tubule (22) and the tubule top of mid portion, sealed mouth of pipe (23) inboard sets up rubber gasket (3) of cooperation needle tube head.

2. A syringe connector according to claim 1, characterized in that the syringe connecting section (21) is of a conical cylindrical shape with a thick open end far from the open end and a thin open end, and the outer wall of the syringe connecting section (21) is circumferentially provided with a plurality of plastic sheet-shaped flanks (211).

3. A syringe connector as claimed in claim 1, wherein the connecting tubule (22) has the same inner diameter as the inner diameter of the syringe connecting section (21) on the side remote from the open end.

4. A syringe connector according to claim 1, characterized in that the connecting tubule (22) is a PVC plastic tube, the connecting tubule (22) having a length of 4.5-7.5cm.

5. A syringe connector as claimed in claim 1, wherein the connector body (2) is integrally formed of a transparent material.

6. An anti-overflow liquid injector, which is characterized by comprising the injector connector as claimed in any one of claims 1-4, and further comprising an injector body (1) at the other end, wherein the injector body (1) comprises a needle tube (11) close to one end of the injector connector and an injection tube (12) far away from one end of the injector connector, and the injector body (1) and the connector body (2) are sealed through a connecting mechanism.

7. The anti-overflow injector according to claim 6, wherein the connecting means comprises an external thread provided on the outer side wall of the needle tube (11) and an internal thread provided on the inner side wall of the open end of the injector connecting portion (21).

8. The anti-overflow injector according to claim 6, wherein the number of layers of the external thread of the outer side wall of the needle tube and the internal thread of the inner side wall of the opening end of the connecting portion (21) of the injector is not more than 3.

9. The anti-overflow injector according to claim 6, wherein the connecting mechanism comprises a plurality of protruding points (4) arranged on the outer side wall of the needle tube (11) at intervals, a plurality of wedge-shaped supporting blocks (5) arranged on the bottom end of the side wall of the needle tube (11) and J-shaped positioning grooves (6) matched with the protruding points (4) and arranged on the outer side wall of the connecting portion (21) of the injector.