CN216755124U

CN216755124U - Heparin cap with spiral positive pressure connector

Info

Publication number: CN216755124U
Application number: CN202123222275.4U
Authority: CN
Inventors: 李亚佳; 王茜; 吴敏
Original assignee: First Peoples Hospital of Lianyungang
Current assignee: First Peoples Hospital of Lianyungang
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-17
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a heparin cap with a spiral positive pressure interface, which comprises a heparin cap, wherein a spiral joint is arranged in front of a tube body of the heparin cap, a branch tube is additionally arranged on the side wall of the tube body, the outer wall of the tail end of the branch tube is provided with a threaded structure, the inner part of the tail end of the branch tube is in a reducing necking shape, a plug with a reducing necking is arranged in the branch tube, a spring is arranged behind the plug, a limiting plate is arranged behind the spring, and a liquid channel is arranged on the limiting plate; the utility model is different from the existing heparin cap structure, adds a structure with a spiral positive pressure interface, can meet the requirement of needleless positive pressure medicine adding or transfusion, reduces the steps of detaching the heparin cap and sealing the tube again of the indwelling needle, and reduces the workload of nursing staff.

Description

Heparin cap with spiral positive pressure connector

Technical Field

The utility model belongs to the technical field of heparin caps, and particularly relates to a heparin cap with a spiral positive pressure connector.

Background

The function of the heparin cap is as follows: the heparin cap is matched with the arteriovenous indwelling needle, and can be used for transfusion and medicine injection by repeated puncture. The heparin cap is used for injecting heparin liquid, so that blood backflow and anticoagulation can be prevented. The heparin cap can also be used for sealing the interfaces of various indwelling catheters, and the heparin cap needs to be sterilized and firmly fixed during use to prevent falling off.

The existing indwelling needle is provided with two connectors, one connector is a positive pressure connector, the other connector is a heparin cap, when a liquid medicine is infused, some need to insert a needle to add medicine, some need to input through the needle-free positive pressure, and the heparin cap needs to be repeatedly disassembled in the process, so that the heparin cap can be improved, two infusion modes are met, and the heparin cap with the spiral positive pressure connector is provided.

Disclosure of Invention

The utility model aims to design a heparin cap with a spiral positive pressure interface, which can be suitable for the connection of the tail end of an indwelling needle, reduces the steps of tube sealing in the indwelling needle, and increases the use flexibility of the heparin cap.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a take heparin cap of spiral malleation interface, includes the heparin cap, body the place ahead including the heparin cap is equipped with helical joint, the lateral wall of body still increases the branch pipe, the terminal outer wall of branch pipe is equipped with helicitic texture, the inside reducing throat shape that is of branch pipe end, the end cap that is equipped with the reducing throat in the branch pipe, the end cap rear is equipped with the spring, the spring rear is equipped with the limiting plate, be equipped with liquid channel on the limiting plate.

Furthermore, a cannula is arranged in the spiral connector.

Furthermore, an outlet is also formed behind the limiting plate.

Further, the outer layer of the spring is wrapped by a sealing layer, and the sealing layer, the limiting plate and the plug are integrated to prevent the liquid medicine from contacting with the spring.

Furthermore, the sealing layer, the limiting plate and the plug are all made of silicon rubber materials.

Furthermore, the spiral connector specifically adopts a luer connector for butting other types of structures, so that better sealing connection is realized.

Furthermore, the back of the heparin cap is provided with a hole for inserting a needle for transfusion.

The technical scheme can obtain the following beneficial effects:

the utility model is different from the existing heparin cap structure, adds a structure with a spiral positive pressure interface, can meet the requirement of needleless positive pressure medicine adding or transfusion, reduces the steps of detaching the heparin cap and sealing the tube again of the indwelling needle, and reduces the workload of nursing staff.

The improved positive pressure interface is completely matched with other infusion connectors, the connection is anastomotic, the operation is simple, and the spiral connector at the far end of the heparin cap is correspondingly connected with the thread structure at the upper tail end of the indwelling needle.

Drawings

Figure 1 is a schematic view of a heparin cap.

Figure 2 is a top view of a heparin cap.

Fig. 3 is a view showing the state of use of the heparin cap.

In the figure:

in the figure: 1. a pipe body; 2. a screw joint; 3. a heparin cap; 4. inserting a tube; 5. an outlet; 6. a branch pipe; 7. the device comprises a spring 8, a thread structure 9, a plug 10, a sealing layer 11, a limiting plate 12 and a liquid channel.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1-3, a take heparin cap of spiral malleation interface, includes heparin cap 3, is equipped with screwed joint 2 including 1 the place ahead of body of heparin cap 3, the lateral wall of body 1 still increases branch pipe 6, the terminal outer wall of branch pipe 6 is equipped with

helicitic texture

8, 6 end inside of branch pipe is the reducing throat shape, is equipped with the end cap 9 of reducing throat in the branch pipe 6, end cap 9 rear is equipped with spring 7, spring 7 rear is equipped with limiting plate 11, be equipped with liquid channel 12 on the limiting plate 11. The spiral connector 2 is internally provided with a cannula 4. An outlet 5 is also arranged behind the limiting plate 11. The outer layer of the spring 7 is wrapped by a sealing layer 10, and the sealing layer 10, a limiting plate 11 and a plug 9 are integrated to prevent liquid medicine from contacting with the spring. The sealing layer 10, the limiting plate 11 and the plug 9 are all made of silicon rubber materials. The screw joint 2 specifically adopts a luer joint. The back of the heparin cap 3 is provided with a hole 13.

Example (b):

in the using process, the utility model is screwed into the end connector of the remaining needle through the spiral connector 2, at the moment, one of the two ends of the remaining needle is a heparin cap, the other one is the heparin cap of the utility model, which has two functions of a positive pressure interface and the heparin cap, when the needle is required to be inserted for transfusion and medicine adding, can be directly inserted into the hole 13 at the rear end of the heparin cap, if the medicine is added without needle, other connectors are butted with the thread structure 8, the other joints can press the plug to move the plug to the left, at which time, a gap (shown in figure 3) exists between the plug and the inner wall of the branch pipe 6, is used for circulating liquid medicine, after the liquid medicine enters the cavity between the sealing layer 10 and the inner wall of the joint, the liquid medicine flows into the remaining needle through the liquid channel 12 again to realize medicine adding, when the butt joint is screwed down, the spring deforms to move the plug rightwards, and the mouth of the branch pipe 6 (shown in figure 1) can be well blocked.

In the above embodiment, the sealing layer 10, the limiting plate 11, and the plug 9 are all made of silicon rubber materials, so that the liquid medicine can be prevented from contacting the spring.

In the above embodiment, the thread structure of the branch pipe 6 and the existing infusion pipeline structure can be in butt joint in an inosculating way, the branch pipe and the pipe body can be made of transparent medical materials, and whether the liquid medicine and the blood in the heparin cap flow back or not can be observed.

In the above embodiment, the plug is formed by adopting a gradually-changed necking, specifically, the front part is in a shape of a circular truncated cone, the rear part is a cylinder, and the circular truncated cone can correspond to the gradually-changed necking of the opening part of the branch pipe 6, so that the sealing effect is realized.

The above description is the preferred embodiment of the present invention, and it is within the scope of the appended claims to cover all modifications of the utility model which may occur to those skilled in the art without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a take heparin cap of spiral malleation interface, includes heparin cap (3), its characterized in that: body (1) the place ahead including heparin cap (3) is equipped with screw joint (2), the lateral wall of body (1) still increases branch pipe (6), the terminal outer wall of branch pipe (6) is equipped with helicitic texture (8), branch pipe (6) end inside is the reducing throat shape, is equipped with end cap (9) of reducing throat in branch pipe (6), end cap (9) rear is equipped with spring (7), spring (7) rear is equipped with limiting plate (11), be equipped with liquid channel (12) on limiting plate (11).

2. The heparin cap with the spiral positive pressure interface according to claim 1, wherein: an insertion pipe (4) is arranged in the spiral connector (2).

3. The heparin cap with the spiral positive pressure interface according to claim 1, wherein: an outlet (5) is also arranged behind the limiting plate (11).

4. The heparin cap with the spiral positive pressure interface according to claim 1, wherein: the outer layer of the spring (7) is wrapped by a sealing layer (10), and the sealing layer (10) is integrated with the limiting plate (11) and the plug (9) to prevent liquid medicine from contacting the spring.

5. The heparin cap with the spiral positive pressure interface according to claim 1 or 4, wherein: the sealing layer (10), the limiting plate (11) and the plug (9) are all made of silicon rubber materials.

6. The heparin cap with the spiral positive pressure interface according to claim 1, wherein: the spiral connector (2) is a luer connector.

7. The heparin cap with the spiral positive pressure interface according to claim 1, wherein: the back of the heparin cap (3) is provided with a hole (13).