CN204501885U - Safe transfusion system dropping funnel - Google Patents

Abstract

The utility model discloses a drip funnel for a safety infusion device. The protective cover (1) is set on the bottle stopper piercer (2), the bottle stopper piercer (2) is set on the upper section (4) of the drip funnel, and the lower section (5) of the drip funnel A float valve (6) is installed inside; the feature is: the outside of the float valve (6) is a gear-shaped side wall, the top of the float valve (6) is a buffer spherical convex surface, the bottom of the float valve (6) is provided with a notch, and one end The silicone ring cap (7) with a sealing film (7a) is embedded in the bottom notch of the float valve (6). There is a ventilation groove (6a) at the joint between the inner wall of the notch and the silicone ring cap. The sealing film (7a) and the float valve (6) The bottom surface is flush and facing the infusion port (5a) of the lower part of the dropping funnel (5). The utility model automatically blocks the infusion port of the drip funnel of the infusion set when the infusion is completed, so that the liquid medicine in the infusion line at the lower end of the infusion port stops flowing, automatically ends the infusion, prevents air from entering the patient's body and blood backflow in the body, and ensures safe infusion.

Description

Safety infusion set dropper

technical field

The utility model relates to a sterile medical device used for clinical infusion, in particular to a dripping bucket of a safety infusion set.

Background technique

In the clinical infusion process, usually a medical staff has to take care of the infusion of patients in several wards. If the infusion bottle is replaced in time or the infusion needle is pulled out, the liquid level drops too low, causing gas to enter the human body and cause gas embolism and other adverse consequences, which brings a heavy mental burden to medical staff, patients or patients' families.

Contents of the invention

The purpose of this utility model is: to provide a one-time use safety infusion device dripping funnel, when the infusion is nearly completed, the liquid outlet of the dripping funnel is automatically blocked, so that the liquid in the infusion line stops flowing, and prevents air from entering the patient's body and blood in the body Reflow, one-time use, ensure safety.

The utility model is realized through the following technical scheme: the safety infusion device dripper includes a protective cover, a cork puncturer, an upper part of the dripper, a lower part of the dripper, a float valve and a silicone ring cap, and the protective cover is set on the cork puncturer , the cork piercer is set on the upper part of the drip funnel, and the lower part of the drip funnel is equipped with a float valve, which constitutes a safety infusion set drip funnel as a whole; the characteristics are: the outside of the float valve is a gear-shaped side wall, and the top of the float valve is a buffer spherical convex surface , the bottom of the float valve is provided with a notch, and the silicone ring cap with a sealing film at one end is embedded in the bottom notch of the float valve. Facing the infusion port on the lower part of the drip funnel.

Wherein, the outer diameter of the float valve is slightly smaller than the inner diameter of the lower part of the dropping funnel, and the gap size of the ventilation groove ensures that the liquid cannot enter the cavity of the float valve under normal infusion conditions.

Wherein, the inner interface of the upper section of the dripping funnel is provided with a rising stop at the end of the outer interface of the lower section of the dripping funnel, and the float valve moves between the rising stopping and the infusion port.

The further technical scheme of the utility model is: the liquid medicine filter seat integrally formed by injection molding with the infusion port is set in an inverted funnel shape, the bottom of the lower part of the drip funnel is set in a funnel-shaped notch, and the liquid medicine filter is fixed on the medicine liquid filter by high-frequency heat sealing. The liquid filter seat is installed on the inner bottom surface of the lower part of the notch dropping funnel together.

Wherein, the dropper of the cork piercer is directly connected to the blow-molding dropping funnel, and the blow-molding dropping funnel and the injection-molding dropping funnel are interchangeable and universal.

Among them, the capacity of the dripping funnel after the combination of the upper part of the dropping funnel and the lower part of the dropping funnel is: 6cc, 8cc, 10cc, 12cc, 14cc.

Another technical solution of the utility model is: on the basis of ordinary disposable infusion sets, various types of bottle stopper piercers are commonly used, including bottle stopper piercers with exhaust, bottle stopper piercers with exhaust and wings, Winged cork piercer without vent, cork piercer without vent.

When the infusion starts, the liquid first drops on the spherical buffer convex surface of the float valve and then diverts to the gear-shaped hole on the side wall to flow into the bottom of the drip funnel. As the liquid level rises, the float valve rises under the buoyancy of the liquid, and the sealing film breaks away. The infusion port realizes the infusion process. When the infusion is nearly completed, the floating valve will drop with the liquid level until the sealing film contacts the infusion port. Air does not enter the infusion pipeline below the infusion port, thereby preventing air from entering the human body and blood backflow in the body, and realizing safe infusion, which has very positive significance for further reducing and avoiding the occurrence of medical accidents.

The utility model has the advantages of simple structure, safety and reliability. When the infusion is about to be completed, the liquid outlet of the drip funnel of the infusion set is automatically blocked, so that the liquid medicine in the infusion pipeline at the lower end of the liquid outlet stops flowing, thereby automatically ending the infusion and preventing air from entering the patient. The return of blood in the body and body ensures safe infusion, which has very positive significance for further reducing and avoiding the occurrence of medical accidents.

Description of drawings

Fig. 1 is the overall structure diagram of the utility model.

Fig. 2 is an overall structural diagram of a further technical solution of the present invention.

Figure 3 is a bottom view of the float valve.

Fig. 4 is the overall structure diagram after changing the dripping hopper in Fig. 1 .

Fig. 5 is the overall structure diagram after changing the dropping bucket in Fig. 2 .

Fig. 6 is a structural diagram of the dropping funnel in Figs. 4 and 5 .

Fig. 7 is the overall structure diagram after replacing the puncture device in Fig. 1 .

Fig. 8 is a diagram of the overall structure of Fig. 2 after changing the puncture device.

Fig. 9 is a structural diagram of the trocar in Figs. 7 and 8 .

FIG. 10 is a bottom view of FIG. 9 .

In the figure: 1 protective cover, 2 cork piercer, 3 air inlet with air filter and cap, 4 upper section of dripping funnel, 5 lower section of dropping funnel, 6 float valve, 7 silicone ring cap, 8 liquid medicine filter Seat, 9 liquid filter screen, 10 liquid filter, 2a dropper, 4a stop riser, 5a infusion port, 7a sealing film, 6a ventilation groove, 2A bottle stopper piercer with exhaust, 2B with exhaust and wings Cork piercer, 2C cork piercer with wings without exhaust, 2D cork piercer without exhaust, 4A injection molding drip funnel, 4B blow molding drip funnel, 5A convex mouth drip funnel lower section, 5B notch drip The lower part of the bucket.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the dropping funnel of the safety infusion set includes a protective cover 1, a bottle stopper piercer 2, an upper section of the dropping funnel 4, a lower section of the dropping funnel 5, a float valve 6 and a silicone ring cap 7. The protective cover 1 is set on the bottle stopper piercer On the device 2, the cork piercer 2 is set on the upper section 4 of the dropping funnel, and the lower section 5 of the dropping funnel is equipped with a floating valve 6, which constitutes the dripping funnel of the safety infusion set as a whole; its feature is: the outside of the floating valve 6 is a gear-shaped side The top of the float valve 6 is a buffer spherical convex surface, the bottom of the float valve 6 is provided with a notch, and the silicone ring cap 7 with a sealing film 7a at one end is embedded in the bottom notch of the float valve 6, the inner wall of the notch and the silicone ring cap There is a ventilation groove 6a at the junction, and the sealing film 7a is flush with the bottom surface of the float valve 6 and facing the infusion port 5a of the lower section 5 of the dropping funnel.

As shown in Figures 1 and 3, the outer diameter of the float valve 6 is slightly smaller than the inner diameter of the lower section 5 of the dropping funnel, and the gap size of the vent groove 6a ensures that the liquid cannot enter the cavity of the float valve 6 under normal infusion conditions.

As shown in FIG. 1 , the inner interface of the upper section 4 of the dropping funnel is provided with a lift-stop sill 4a at the end of the outer interface of the lower section 5 of the drip funnel, and the float valve 6 moves between the lift-stop sill 4a and the infusion port 5a.

As shown in Figure 2, the further technical scheme of the utility model is: the liquid medicine filter seat 8 integrally injection-molded with the infusion port 5a is set to an inverted funnel shape, the bottom of the notch dropping funnel lower section 5B is set to a funnel shape, and the liquid medicine The filter screen 9 is fixed on the liquid medicine filter seat 8 by high-frequency heat sealing to form a liquid medicine filter 10 installed on the inner bottom surface of the notch dropping funnel lower section 5B.

As shown in Figure 4-10, the dropper of the cork piercer 2 is directly connected to the blow molding dropper 4B, and the blow molding dropper 4B is interchangeable with the injection molding dropper 4A.

As shown in Figure 4-10, on the basis of ordinary disposable infusion sets, various types of cork piercers 2 are commonly used, including cork piercer 2A with venting, cork piercer 2B with venting and wings , Bottle cork piercer 2C with wings without exhaust, bottle cork piercer 2D without exhaust.

When the infusion starts, the liquid first drops on the spherical buffer convex surface of the float valve 6 and then diverts to the gear-shaped hole on the side wall and flows into the bottom of the lower section 5 of the drip funnel. As the liquid level rises, the float valve 6 rises under the buoyancy of the liquid , the sealing film 6a is separated from the infusion port 5a to realize the infusion process; when the infusion is nearly completed, the float valve 6 drops with the liquid level, and when the sealing film 6a contacts the infusion port 5a, under the atmospheric pressure and the pressure of the float valve 6's own weight, it is sealed The membrane 6a tightly seals the infusion port 5a, so that air does not enter the infusion pipeline below the infusion port 5a, thereby preventing air from entering the human body and blood backflow in the body, and realizing safe infusion.

The above is only for the purpose of illustrating the technical solution of the utility model, rather than limiting the utility model. Those skilled in the art can also make various changes and modifications without departing from the spirit and scope of the utility model , all equivalent technical solutions also belong to the category of the present utility model.

Claims (6)

1. Safety infusion set drip funnel, which includes protective cover (1), bottle stopper piercer (2), upper part of drip funnel (4), lower part of drip funnel (5), float valve (6) and silicone ring cap (7) , the protective cover (1) is set on the cork piercer (2), the cork piercer (2) is set on the upper section of the dripping funnel (4), and the lower section of the dripping funnel (5) is equipped with a float valve (6), the overall structure Drip funnel for safety infusion set; its features are: the outside of the float valve (6) is a gear-shaped side wall, the top of the float valve (6) is a buffer spherical convex surface, the bottom of the float valve (6) is provided with a notch, and one end is provided with The silicone ring cap (7) of the sealing film (7a) is embedded in the bottom notch of the float valve (6), and there is a ventilation groove (6a) at the joint between the inner wall of the notch and the silicone ring cap, and the sealing film (7a) and the float valve (6 ) is flush with the bottom surface and facing the infusion port (5a) of the lower section (5) of the dropping funnel. 2. The dripping funnel of the safety infusion set according to claim 1, characterized in that: the outer diameter of the float valve (6) is slightly smaller than the inner diameter of the lower part of the dripping funnel (5), and the gap size of the ventilation groove (6a) ensures Liquid cannot enter the float valve (6) cavity. 3. The dropping funnel of the safety infusion device according to claim 1, characterized in that: the inner interface of the upper section (4) of the dripping funnel is provided with a stop riser (4a) at the end of the outer interface of the lower section (5) of the dripping funnel, and the floating The valve (6) is active between the lift stop (4a) and the infusion port (5a). 4. The dripping funnel of the safety infusion set according to claim 1, characterized in that: the liquid medicine filter seat (8) formed by integral injection molding with the infusion port (5a) is set in an inverted funnel shape, and the lower part of the notched dripping funnel ( 5B) The bottom is set in a funnel shape, and the liquid medicine filter (9) is fixed on the liquid medicine filter seat (8) by high-frequency heat sealing to form a liquid medicine filter (10) and installed in the lower part of the notch dropping funnel (5B) bottom surface. 5. The safety infusion device dripping funnel according to claim 1, characterized in that: the blow molding drip funnel (4B) is directly connected to the drip tube (2a) of the cork piercer (2), and the blow molding drip funnel (4B) ) is interchangeable with the injection molding dripping funnel (4A). 6. The dropping funnel of the safety infusion device according to claim 1, characterized in that: the combined capacity of the upper section (4) of the dripping funnel and the lower section (5) of the dripping funnel are: 6cc, 8cc, 10cc, 12cc, 14cc .