CN204655655U - Safety type infusion apparatus dropping funnel - Google Patents

Abstract

The utility model discloses a dripping bucket of a safety infusion set, comprising a sheath (1), a cork puncturer (2), an air filter (3), a dripping bucket (4), and a float valve (5), and is characterized in that: The float valve (5) includes a float cover (5a), a float (5b) and a seal (5c). The float cover (5a) and the float (5b) are cylinders with one end open and a gear-shaped outer circle. (5a) is connected with the floating body (5b) through the mouth-to-mouth of the mother and son stem (5a1, 5b1), and the seal (5c) is connected with the bottom of the floating body (5b) through the mother and son buckle (5c2, 5b3) and is facing the bottom of the dripping funnel for infusion Mouth (4b1). The utility model automatically blocks the infusion port of the drip funnel when the infusion is completed, so that the liquid medicine in the catheter stops flowing, prevents air from entering the patient's body and blood backflow in the body, and ensures safe infusion.

Description

Safety Infusion Set Dropping Funnel

technical field

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

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 safe infusion device dripping bucket, which can automatically block the infusion port of the dripping bucket when the infusion is nearly completed, so that the liquid in the infusion line stops flowing, prevents air from entering the patient's body and blood backflow in the body, and ensures the infusion Safety.

The utility model is realized through the following technical proposals: the infusion device dripper includes a sheath, a cork puncturer, an air filter, a dripper, a float valve, and the bottle stopper puncturer is integrally injection-molded with a dripper cover and air holes, and The air filter installed inside is set together on the upper dripping hopper, and the lower dripping hopper is equipped with a float valve, which constitutes a safety infusion set dripping hopper as a whole; the feature is that the float valve includes a floating body cover, a floating body and a seal, and the floating body and the floating body cover are One end of the cylinder is open and equipped with a gear-shaped outer surface. The floating body cover and the floating body are connected through the mouth of the stem cylinder. The seal is connected to the bottom of the floating body through the buckle.

Wherein, the inner bottom surface of the floating body cover is provided with a sub-stem, the peripheral surface of the head of the sub-stem is provided with a snap ring, and the top of the floating body cover is a convex cross flow divider.

Wherein, the bottom surface of the floating body is provided with a female stem, the inner surface of the upper section of the female stem is provided with a card slot, and the lower section of the female stem is provided with a female buckle.

Wherein, the sealing member is integrally injection-molded with silicone rubber to form an umbrella-shaped sealing film and an umbrella handle-shaped buckle.

Another technical solution of the utility model is: the bottom of the floating body is provided with a notch; the inner circle of the liquid medicine filter is an inverted funnel shape and the outer circle is closely matched with the inner circle of the lower dripping funnel and installed on the inner bottom of the lower dripping funnel The sealing member is a silicone ring with a sealing film at one port, which is embedded in the notch at the bottom of the floating body and faces the infusion port of the liquid medicine filter.

Wherein, the outer diameter of the floating valve is slightly smaller than the inner diameter of the lower dripping funnel, and the gap between the two cylinder mouths after the floating body cover is connected with the floating body ensures that the liquid cannot enter the cavity of the floating valve under normal infusion conditions.

When the infusion starts, the liquid drops on the cushioning cross-shaped convex surface of the floating body cover and then is diverted to the gear-shaped groove on the outer circular surface and flows into the bottom of the drip funnel. As the liquid level rises, the float valve rises under the buoyancy of the liquid. The sealing film is separated from the infusion port to realize the infusion process; when the infusion is nearly completed, the floating valve will drop with the liquid level, and when the sealing film contacts the infusion port, under the atmospheric pressure and the pressure of the float valve’s own weight, the sealing film will tightly seal the infusion The mouth prevents air from entering the infusion line, thereby preventing air from entering the human body and blood backflow in the body, and realizing safe infusion.

The utility model has the advantages of simple structure, safety and reliability, and automatically blocks the infusion port of the drip funnel of the infusion device when the infusion is nearly completed, so that the liquid medicine in the infusion pipeline stops flowing, thereby automatically ending the infusion, and preventing air from entering the patient's body And blood return in the body to ensure 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 another technical solution of the present invention.

Figure 3 is a cross-sectional view of the float valve.

Fig. 4 is a sectional view of another technical solution of the float valve.

Figure 5 is a top view of the float valve.

In the figure: 1 sheath, 2 cork piercer, 3 air filter, 4 drip funnel, 5 float valve, 6 liquid medicine filter, 2a drip funnel cover, 2b air hole, 4a upper drip funnel, 4b lower drip funnel, 4b1 infusion port, 5a floating body cover, 5b floating body, 5c seal, 5a1 sub stem, 5a2 clasp, 5b1 female stem, 5b2 card slot, 5b3 female buckle, 5c1 sealing film, 5c2 sub buckle, 5B floating body, 5B3 concave Mouth, 5C seal, 5C1 sealing film, 6a infusion port, A gap.

Detailed ways

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

As shown in Figure 1, the dripping funnel of the safety infusion set includes a sheath 1, a cork piercer 2, an air filter 3, a dripping funnel 4, and a float valve 5, and a dripping funnel cover 2a is integrally injection-molded on the cork piercer 2 Together with the air hole 2b and the air filter 3 installed in the air hole 2b, it is set on the upper dripping funnel 4a, and the lower dripping funnel 4b is equipped with a float valve 5, which constitutes a safety infusion set dripping funnel as a whole; its feature is: the floating valve 5 includes a floating body cover 5a, floating body 5b and sealing member 5c, the floating body cover 5a and the floating body 5b are cylinders with one end open and a gear-shaped outer circular surface, the floating body 5b and the floating body cover 5a are connected mouth-to-mouth through the two-piece stem (5a1, 5b1), The bottom of the floating body 5b is connected to the sealing member 5c through snap buttons (5c2, 5b3), and the sealing member 5c is facing the infusion port 4b1.

As shown in Figures 3 and 5, a sub-stem 5a1 is provided on the inner bottom of the floating body cover 5a, and a snap ring 5a2 is provided on the circumferential surface of the head of the sub-stem 5a1.

As shown in Figures 3 and 5, the bottom surface of the floating body 5b is provided with a female stem 5b1, the inner surface of the upper section of the female stem 5b1 is provided with a locking groove 5b2, and the lower section of the female stem 5b1 is provided with a female buckle 5b3.

As shown in Figures 3 and 5, the sealing member 5c is integrally injection-molded with silicone rubber to form an umbrella-shaped sealing film 5c1 and an umbrella handle-shaped buckle 5c2.

As shown in Figures 2 and 4, it is another embodiment of Figure 1: the bottom of the floating body 5B is provided with a notch 5B3; the inner circle of the liquid medicine filter 6 is in the shape of an inverted funnel and the outer circle closely fits the inner circle of the lower dripping funnel 4b Installed on the bottom surface of the lower dripping funnel 4b; the seal 5C is a silicone ring cap with a sealing film 5C1 embedded in the notch 5B3 at the bottom of the floating body facing the infusion port 6a of the liquid medicine filter.

As shown in Figures 1 and 3, the outer diameter of the floating valve 5 is slightly smaller than the inner diameter of the lower dripping funnel 4b. After the floating body cover 5a is connected to the floating body 5b, the gap A between the two barrels ensures that the liquid cannot enter the floating valve 5 under normal infusion conditions. cavity.

When starting the infusion, the liquid first drops on the convex cross distribution grid of the float valve 5, and then diverts to the groove of the gear-shaped outer circle and flows into the bottom of the drip funnel 4. As the liquid level rises, the float valve 5 is under the action of the buoyancy of the liquid. Ascent, the sealing film 5c1 is separated from the infusion port 4b1 to realize the infusion process; when the infusion is nearly completed, the float valve 5 descends with the liquid level until the sealing film 5c1 is in contact with the infusion port 4b1, under atmospheric pressure and the pressure of the float valve 5's own weight, The sealing film 5c1 tightly seals the infusion port 4b1 so that air does not enter the infusion pipeline, thereby preventing air from entering the human body and backflow of blood 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 dripper, which includes sheath (1), cork piercer (2), air filter (3), dripper (4), float valve (5), cork piercer (2 ) The upper dripping funnel cover (2a) and the air hole (2b) are integrally injection-molded, and the air filter (3) is installed in the air hole (2b) and set together on the upper dripping funnel (4a), and the lower dripping funnel (4b) is equipped with a float valve (5), which constitutes a safety infusion set dripping funnel as a whole; its features are: the float valve (5) includes a float cover (5a), a float (5b) and a seal (5c), a float cover (5a) and a float (5b) It is a cylinder with an open end and a gear-shaped outer surface. The floating body cover (5a) and the floating body (5b) are connected through the sockets of the mother and daughter stems (5a1, 5b1), and the seal (5c) is connected to the bottom of the floating body (5b). After being connected by snap-in buttons (5c2, 5b3), it is facing the infusion port (4b1) at the bottom of the dropping funnel. 2. The dripping funnel of safety infusion set according to claim 1, characterized in that: a sub-stem (5a1) is provided on the inner bottom surface of the floating body cover (5a), and a card is provided on the circumferential surface of the head of the sub-stem (5a1) The ring (5a2), the top of the floating body cover (5a) is a convex cross flow grid (5a3). 3. The dripping funnel of safety infusion set according to claim 1, characterized in that: the bottom surface of the floating body (5b) is provided with a female stem (5b1), and the inner surface of the upper part of the female stem (5b1) is provided with a card slot (5b2) , a female buckle (5b3) is arranged in the lower section of the female core column (5b1). 4. The dripping funnel of safety infusion set according to claim 1, characterized in that: the sealing member (5c) is integrally injection-molded with silicone rubber to form an umbrella-shaped sealing film (5c1) and an umbrella-handle-shaped buckle (5c2). 5. The dripping funnel of safety infusion set according to claim 1, characterized in that: the bottom of the floating body (5B) is provided with a notch (5B3); the inner surface of the liquid medicine filter (6) is inverted funnel-shaped and the outer circle The surface and the inner circle of the lower dripping funnel (4b) are closely matched and installed on the inner bottom of the lower dripping funnel (4b). The seal (5C) is a silicone ring cap with a sealing film (5C1) on one port and embedded in the notch at the bottom of the floating body (5B3 ) facing the infusion port (6a) of the liquid medicine filter. 6. The dripping funnel of safety infusion set according to claim 1, characterized in that: the outer diameter of the floating valve (5) is slightly smaller than the inner diameter of the lower dripping funnel (4b), and the floating body cover (5a) is connected with the floating body (5b) The size of the gap (A) between the mouths of the two rear barrels ensures that the liquid cannot enter the cavity of the float valve (5) under normal infusion conditions.