CN204910310U - Automatic exhaust ends liquid transfusion system - Google Patents

Abstract

The utility model discloses an automatic exhaust and liquid-stopping infusion device, which comprises a puncture assembly (1), a drip funnel (2), a flow regulator (3), an infusion catheter (4), a connecting seat (5) and an infusion needle (6) ), the dripping funnel (2) is composed of an upper end cover (21) and a dripping funnel body (22), an automatic exhaust device (7) is installed on the upper end cover (21), and the dripping funnel body (22) is a one-time molded part. The bottom of the bucket body (22) is fixed with a liquid medicine filter membrane (8), the puncture assembly (1) includes a puncture device (12), the puncture device (12) is provided with an air inlet plug installation hole, and the bottom of the air inlet plug installation hole A layer of air filter membrane is also laid, an air intake plug (13) is installed in the air intake plug installation hole, and a puncture device protective cover (11) is also set on the outside of the puncture device (12). The beneficial effects of the utility model are: it has the advantages of automatic exhaust, automatic liquid stop, safe and reliable infusion, high yield and simple manufacture.

Description

Automatic exhaust stop liquid infusion set

technical field

The utility model relates to an infusion set, in particular to an automatic exhaust-stop liquid infusion set.

Background technique

At present, the common infusion sets commonly used in the medical field are composed of a bottle stopper piercer protective cover, a bottle stopper piercer, a short infusion catheter, a short exhaust catheter, an air filter, a dropper, a drip funnel, a flow regulator, a long infusion catheter, Composed of a liquid medicine filter and a disposable intravenous infusion needle, the filtration rate of the liquid medicine filter membrane of an ordinary infusion set for particles with a diameter of 20±1 μm is not less than 80%. At the beginning of the infusion, the ordinary infusion set must manually squeeze the dripping funnel to introduce the medicinal liquid from the infusion bottle into the dripping funnel. The gas in the bucket is discharged downwards to form a gas-liquid mixture into the long infusion catheter, thus generating air bubbles. At the same time, due to the surface tension of the inner wall of the long infusion catheter, a small amount of air bubbles are easily absorbed on the inner wall of the long infusion catheter, and the process of removing air bubbles is relatively slow. Difficult, time-consuming and cumbersome, if air bubbles enter the patient's body, it is easy to cause air embolism and other hazards. Therefore, before the infusion, the medical staff must manually drain the air bubbles in the long catheter of the infusion set as much as possible. The usual method of artificial exhaust is: after inserting the bottle stopper puncturer into the infusion bottle stopper, first hang the dripping funnel upside down. , at the same time, squeeze the dripping funnel with your hands to make the medicine liquid enter the dripping funnel. After a certain amount of liquid is filled with the dripping funnel, put down the dropping funnel to remove most of the air bubbles, but there are still a small amount of small air bubbles adsorbed in the infusion solution. On the inner wall of the long catheter, the medical staff have to flick the long infusion catheter with their fingers, so that the absorbed air bubbles can slowly rise into the dripping funnel. This manual air bubble removal process is cumbersome and time-consuming. Simultaneously, also be unfavorable for urgent transfusion and rescue patient.

And in the clinical transfusion process, the labor intensity of the medical staff is very high, usually a medical staff will take care of the infusion of patients in several wards, and it often happens that the medical staff, the patients or the family members of the patients fail to observe in time that the medicinal liquid in the infusion bottle has been transfused. If the infusion bottle is not replaced or the infusion needle is pulled out in time, this will cause the blood to rise back into the entire set of infusion set pipelines, or the liquid level will drop too low, causing gas to enter the human body and cause gas embolism and other adverse consequences. The patient or the patient's family members bring a heavy mental burden.

But the existing infusion device, such as a kind of precision infusion device with automatic exhaust and liquid stop in Chinese patent, application number: 2010206789649, its dripping funnel adopts three-stage assembly, namely the dripping funnel is composed of a dripping funnel upper cover, an upper dripping funnel shell and a lower dripping funnel. The shell of the dripping funnel is composed of an annular groove on the shell of the lower dripping funnel, and the lower end of the shell of the upper dripping funnel is inserted into the annular groove and connected with the shell of the dripping funnel. The stability of the connection between the bucket shell and the lower dripping bucket shell causes the production quality of the infusion set to be low.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a safe and reliable automatic exhaust, automatic liquid stop and infusion infusion device.

The purpose of this utility model is achieved through the following technical solutions: an automatic exhaust and stop liquid infusion device, which includes a puncture assembly, a drip funnel, a flow regulator, an infusion conduit, a connecting seat and an infusion needle, and the puncture assembly passes through a short conduit It is connected with the dripping funnel, the dripping funnel is connected with the connecting seat through the infusion conduit, the infusion needle is installed on the connecting seat, the flow regulator is installed on the infusion conduit, and the dripping funnel is composed of an upper end cover and a dripping funnel body. An automatic exhaust device is installed on the upper end cover, the drip funnel body is a one-time molded part, and a liquid medicine filter membrane is fixedly installed at the bottom of the drip funnel body, and the puncture assembly includes a puncture device, and the puncture device is equipped with The air intake plug installation hole, the bottom of the air intake plug installation hole is also laid with a layer of air filter film, the air intake plug is installed in the air intake plug installation hole, and the air intake plug fixes the air filter film at the bottom of the air intake plug installation hole , The trocar is also equipped with a trocar protective cover.

The automatic exhaust device is composed of an air filter and an exhaust needle, and the exhaust needle passes through the upper end cover downwards and is located in the dropping funnel, and the air filter communicates with the exhaust needle through an air filter hole.

An annular groove with an opening downward is processed on the upper end cover, and the dropping funnel body is inserted into the annular groove and fixedly connected with the upper end cover.

A sealing rubber sleeve is also provided on the upper end cover.

The sealing rubber sleeve is a latex cap.

The utility model has the following advantages: the automatic exhaust and liquid-stopping infusion device of the utility model adopts a new type of dripping funnel structure. It can be assembled, its structure is simple, easy to assemble, and it has the functions of automatic exhaust and automatic liquid stop, which is safe and reliable. The integrated processing of the dripping funnel reduces the assembly process and manufacturing cost compared with the non-integrated structure, and improves the efficiency. production efficiency, and avoid the phenomenon of leakage caused by assembly and welding; the liquid medicine filter membrane is installed at the bottom of the dripping funnel, which avoids the phenomenon that the liquid medicine filter membrane is destroyed during the assembly process of the infusion set, and improves the infusion set. High yield and reliability of infusion.

Description of drawings

Fig. 1 is the structural representation of the utility model

Figure 2 is a structural schematic diagram of the puncture assembly

Figure 3 is a schematic diagram of the structure of the upper end cover and the automatic exhaust device

Figure 4 is a schematic diagram of the structure of the dropping funnel

In the figure, 1-puncture assembly, 2-drip funnel, 3-flow regulator, 4-infusion catheter, 5-connecting seat, 6-infusion needle, 7-automatic exhaust device, 8-medicine solution filter membrane, 9- Sealant sleeve, 11- funnel, 12- piercer, 13- air intake plug, 11- piercer protective sleeve, 21- upper end cap, 22- drop funnel body, 211- ring groove, 71- air filter, 72- Exhaust needle.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described, and the protection scope of the utility model is not limited to the following:

As shown in Figure 1, the automatic exhaust stop liquid infusion set includes a puncture assembly 1, a drip funnel 2, a flow regulator 3, an infusion catheter 4, a connecting seat 5 and an infusion needle 6, and the puncture assembly 1 passes through a short The conduit is connected to the dripping funnel 2, the dripping funnel 2 is connected to the connecting seat 5 through the infusion conduit 4, the infusion needle 6 is installed on the connecting seat 5, the flow regulator 3 is installed on the infusion conduit 4, the dripping funnel 2 It is composed of an upper end cover 21 and a dripping funnel body 22, and an automatic exhaust device 7 is installed on the upper end cover, as shown in Figure 4, the described dripping funnel body 22 is a one-time molded part, and is not integrally formed with the existing The structure reduces the assembly process and manufacturing cost, and also increases the sealing performance of the dripping funnel body 22, avoiding the leakage phenomenon caused by the combined connection part in place, and the liquid medicine filter membrane 8 is fixedly installed at the bottom of the dripping funnel body 22, In this embodiment, the liquid medicine filter membrane 8 is a liquid-stop type liquid medicine filter membrane, through its specific position and the capillary phenomenon of capillary pores, the automatic liquid stop after the infusion is completed, as shown in Figure 2, the puncture assembly 1 includes a piercer 12, the piercer 12 is provided with an air intake plug installation hole, and a layer of air filter membrane is laid on the bottom of the air intake plug installation hole, an air intake plug 13 is installed in the air intake plug installation hole, and the air intake plug 13. The air filter membrane is fixed on the bottom of the air intake plug installation hole. The piercer 12 is also covered with a piercer protective cover 11. This piercing assembly 1 is simple in structure, easy to assemble and high in production efficiency.

In this embodiment, as shown in FIG. 3 , the automatic exhaust device 7 is composed of an air filter 71 and an exhaust needle 72, and the exhaust needle 72 passes through the upper end cover 21 downwards and is located on the dropping funnel body 22 Inside, the air filter 71 communicates with the exhaust needle 72 through the air filter hole, so that the dripping funnel 2 communicates with the outside world, and the gas in the dripping funnel 2 can be discharged without squeezing.

In this embodiment, the upper end cover 21 is processed with an annular groove 211 with an opening downward, and the upper end of the dripping funnel body 22 is inserted into the annular groove 211 and fixedly connected with the upper end cover 21. When assembling, filter the liquid stopper The membrane is installed at the bottom of the dropping funnel, and then assembled with the upper end cover of the dropping funnel. The structure is simple, the assembly is convenient, and the manufacturing process is simple and effective.

In this embodiment, the upper end cover 21 is further provided with a sealing rubber sleeve 9, and further, the sealing rubber sleeve 9 is a latex cap.

Claims (5)

1. Automatic exhaust stop liquid infusion set, which includes puncture assembly (1), drip funnel (2), flow regulator (3), infusion catheter (4), connection seat (5) and infusion needle (6). The above-mentioned puncture assembly (1) is connected to the drip funnel (2) through a short catheter, the drip funnel (2) is connected to the connection seat (5) through the infusion catheter (4), and the infusion needle (6) is installed on the connection seat (5) Above, the flow regulator (3) is installed on the infusion conduit (4), the dripping funnel (2) is composed of an upper end cap (21) and a dripping funnel body (22), and the upper end cap (21 ) is equipped with an automatic exhaust device (7), which is characterized in that: the dripping funnel (22) is a one-time molded part, and the bottom of the dripping funnel (22) is fixed with a liquid medicine filter membrane (8), the The puncture assembly (1) includes a puncture device (12), the puncture device (12) is provided with an air intake plug installation hole, and a layer of air filter membrane is laid on the bottom of the air intake plug installation hole, and an air filter is installed in the air intake plug installation hole. The air intake plug (13), and the air intake plug (13) fixes the air filter membrane at the bottom of the air intake plug installation hole, and the piercer (12) is also covered with a piercer protective cover (11). 2. The automatic exhaust stop liquid infusion set according to claim 1, characterized in that: the automatic exhaust device (7) is composed of an air filter (71) and an exhaust needle (72), and the exhaust The needle (72) passes through the upper end cap (21) downwards and is located in the drip funnel (22), and the air filter (71) communicates with the exhaust needle (72) through the air filter hole. 3. The automatic exhaust and stop liquid infusion device according to claim 1, characterized in that: the upper end cover (21) is processed with an annular groove (211) with an opening downward, and the dripping funnel (22) is inserted into the annular groove Groove (211) and fixed connection with the upper end cover (21). 4. The automatic air-venting and liquid-stopping infusion set according to claim 1, characterized in that: the upper end cover (21) is also provided with a sealing rubber sleeve (9). 5. The auto-venting and liquid-stopping infusion set according to claim 4, characterized in that: the sealing rubber sleeve (9) is a latex cap.