Anti-reflux infusion set

Abstract

The utility model discloses a kind of anti-reflux infusion apparatus, belong to infusion apparatus technical field, including first pipe body, drip bottle is fixedly installed on the position of first pipe body near end part, and the outside surface of drip bottle is engraved with scale line, first pipe body is fixedly installed with bottle plug puncture ware in one end near drip bottle, the other end of first pipe body is fixedly installed with one-way valve, one-way valve is fixedly installed with second pipe body on the other side, intravenous injection branch pipe is fixedly installed on second pipe body, filter is fixedly installed on the other end of second pipe body, extension pipe is fixedly installed on the other side of filter, injection needle is fixedly installed on the other end of extension pipe, when using, avoid blood reflux by one-way valve, by float ball, after the drug solution in drip bottle inside flows out, float ball is sealed to transition piece, to avoid air into blood vessel, increase the security when using, and by intravenous injection branch pipe, it is convenient to add injection medicine at any time during infusion, convenient operation.

Description

Technical Field

[0001] This utility model relates to an infusion set, specifically an anti-backflow infusion set, and belongs to the field of infusion set technology. Background Technology

[0002] Infusion sets are common, sterile, disposable medical consumables primarily used to establish a channel between a vein and a medication for intravenous infusion or transfusion. They are widely used in modern intravenous injection. However, current infusion sets are relatively simple, mainly only capable of filtering and regulating the flow rate of the injection solution. When used, if the injection bottle is suspended too low, it can easily lead to blood backflow and bleeding. After the medication in the injection bottle is finished, air can easily enter the blood vessel, causing medical accidents and resulting in low safety. Furthermore, it is inconvenient to add medication to the vein through the infusion set during infusion, requiring re-insertion and increasing patient discomfort. Utility Model Content

[0003] The purpose of this invention is to provide an anti-reflux infusion set to solve the above problems, which can improve the safety of infusion, prevent blood reflux and air from entering the blood vessels, and facilitate the intravenous injection of drugs during infusion.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: an anti-reflux infusion set includes a first tube body, a drip chamber fixedly installed near the end of the first tube body, a bottle stopper puncturist fixedly installed at one end of the first tube body near the drip chamber, a one-way valve fixedly installed at the other end of the first tube body, a second tube body fixedly installed on the other side of the one-way valve, an intravenous injection branch fixedly installed on the second tube body in an inclined state, a filter fixedly installed at the other end of the second tube body, and an extension tube fixedly installed on the other side of the filter, with an injection needle fixedly installed at the other end of the extension tube. In use, the bottle stopper puncturist is inserted into an external infusion bottle, and the injection needle is inserted into the patient's blood vessel for infusion. During the infusion process, the one-way valve prevents reflux, the filter filters the medication, and the medication drips into the drip chamber before entering the second tube body. The intravenous injection branch facilitates intravenous drug injection during the infusion process.

[0005] Preferably, an air inlet is fixedly installed on one end of the first tube near the bottle stopper puncture device to facilitate the replenishment of air into the external infusion bottle and improve the smoothness of the infusion flow.

[0006] Preferably, the outer surface of the drip chamber is engraved with scale lines. There are two scale lines on the drip chamber, located at the halfway point and two-thirds point from the bottom up, respectively, to facilitate observation of the liquid level inside the drip chamber.

[0007] Preferably, a dropper is fixedly installed on the first tube body at the upper end of the drip chamber, and a funnel-shaped transition piece is fixedly installed at the lower end of the drip chamber. The lower end of the drip chamber is connected to the first tube body through the transition piece. The dropper facilitates the dripping of medicine into the drip chamber, making it easier to observe the infusion situation and preventing the medicine from flowing into the drip chamber along the inner wall of the drip chamber.

[0008] Preferably, the lower interior of the drip chamber is fixedly equipped with a fine thread in a circumferential array, and a float is fixedly installed between the other ends of the fine thread. The diameter of the float is the same as the diameter of the middle position of the transition piece. When there is medicine in the drip chamber, the float is in a floating state, which facilitates the infusion of medicine through the transition piece. When the medicine in the drip chamber is finished, the float enters the transition piece and seals the transition piece to prevent air from entering the blood vessel and improve the safety of infusion.

[0009] Preferably, the outer side of the one-way valve is fixedly equipped with wire clamps in a circumferential array. The inner diameter of the wire clamps is the same as the outer diameter of the first tube. The wire clamps facilitate the storage of excess first tubes during infusion, preventing clutter.

[0010] Preferably, a rubber stopper is fixedly installed inside the intravenous injection branch, and a sealing cap is threaded to the end of the intravenous injection branch. When intravenous injection of drugs is required, the sealing cap is unscrewed, and the external needle is pierced through the rubber stopper to inject drugs through the intravenous injection branch.

[0011] Preferably, a flow regulator is fitted onto the first tube body to facilitate control of the infusion flow rate.

[0012] The beneficial effects of this utility model are: during use, the one-way valve prevents blood backflow, and the float ball seals the transition piece after the medicine in the drip chamber has flowed out, thereby preventing air from entering the blood vessels and increasing safety during use. The intravenous injection branch makes it easy to add additional injection drugs at any time during infusion, which is convenient for operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention after a partial explosion;

[0015] Figure 3 This utility model Figure 2 A magnified structural diagram of point A in the middle;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model after partial cross-section;

[0017] Figure 5 This utility model Figure 4 A magnified structural diagram of section B in the middle.

[0018] In the diagram: 1. First tube body; 2. Drip pot; 3. Scale line; 4. Bottle stopper puncturist; 5. One-way valve; 6. Second tube body; 7. Intravenous injection branch; 8. Filter; 9. Extension tube; 10. Injection needle; 11. Air inlet; 12. Dropper; 13. Transition piece; 14. Thread; 15. Float; 16. Wire clamp; 17. Rubber stopper; 18. Sealing cap; 19. Flow regulator. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5As shown, an anti-reflux infusion set includes a first tube body 1, with a drip chamber 2 fixedly installed near its end. A bottle stopper puncturist 4 is fixedly installed at one end of the first tube body 1 near the drip chamber 2, and a one-way valve 5 is fixedly installed at the other end of the first tube body 1. A second tube body 6 is fixedly installed on the other side of the one-way valve 5, with an intravenous injection branch tube 7 fixedly installed at an angle on the second tube body 6. A filter 8 is fixedly installed at the other end of the second tube body 6, and an extension tube 9 is fixedly installed on the other side of the filter 8. An injection needle 10 is fixedly installed at the other end of the extension tube 9. In use, the bottle stopper puncturist 4 is inserted into the external infusion bottle, and the medication is injected through the bottle stopper puncturist 4. The infusion is drained into the first tube 1 and the second tube 6, and then discharged through the injection needle 10. The injection needle 10 is then inserted into the patient's blood vessel for infusion. During the infusion, a one-way valve 5 is used to prevent backflow and prevent blood from entering the extension tube 9, thus improving safety. The medication is filtered through the filter 8 and dripped into the dripping pot 2 before entering the second tube 6. The intravenous injection branch 7 facilitates intravenous drug administration during the infusion process without repeated needle pricks, reducing patient discomfort. The first tube 1 is fitted with a flow regulator 19 to control the infusion flow rate.

[0021] An air inlet 11 is fixedly installed on one end of the first tube 1 near the bottle stopper puncture device 4. The air inlet 11 facilitates the replenishment of air into the external infusion bottle, improving the smoothness of the infusion flow. The outer surface of the drip chamber is engraved with scale lines 3. There are two scale lines 3 on the drip chamber 2, located at the halfway point and two-thirds point from the bottom up on the drip chamber 2, respectively, which facilitates observation of the liquid level inside the drip chamber 2 and makes it easy to remove the needle in time.

[0022] A dropper 12 is fixedly installed on the upper end of the drip chamber 2 on the first tube body 1, and a funnel-shaped transition piece 13 is fixedly installed on the lower end of the drip chamber 2. The lower end of the drip chamber 2 is connected to the first tube body 1 through the transition piece 13. The dropper 12 facilitates the dripping of medicine into the drip chamber 2, making it easy to observe the infusion status and preventing the medicine from flowing into the drip chamber 2 along the inner wall. The transition piece 13 facilitates the administration of medicine. A fine thread 14 is fixedly installed in a circular array on the lower end of the inside of the drip chamber 2. A float 15 is fixedly installed at the other end. The diameter of the float 15 is the same as the diameter of the middle position of the transition piece 13. When there is medicine inside the drip chamber 2, the float 15 is in a floating state and the thin line 14 is tightened, so that the medicine can be infused through the transition piece 13. When the medicine inside the drip chamber 2 is finished, the float 15 enters the transition piece 13 and seals the transition piece 13 to prevent air from entering the blood vessels and improve the safety of infusion.

[0023] A wire clamp 16 is fixedly installed in a circumferential array on the outer side of the one-way valve 5. The inner diameter of the wire clamp 16 is the same as the outer diameter of the first tube 1. The wire clamp 16 facilitates the storage of excess first tube 1 during infusion, avoiding clutter and preventing pressure during infusion. A rubber stopper 17 is fixedly installed inside the intravenous injection branch tube 7, and a sealing cap 18 is threaded to the end of the intravenous injection branch tube 7. When intravenous medication is needed, the sealing cap 18 is unscrewed, and the external needle is pierced through the rubber stopper 17 to inject the medication through the intravenous injection branch tube 7. After the injection is completed, the sealing cap 18 is screwed back on to improve the safety of the rubber stopper 17 position and prevent contamination.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-reflux infusion set, characterized in that: The device includes a first tube (1), a drip chamber (2) is fixedly installed on the first tube (1) near its end, a bottle stopper puncturist (4) is fixedly installed on one end of the first tube (1) near the drip chamber (2), a one-way valve (5) is fixedly installed on the other end of the first tube (1), a second tube (6) is fixedly installed on the other side of the one-way valve (5), an intravenous injection branch tube (7) is fixedly installed on the second tube (6) in an inclined state, a filter (8) is fixedly installed on the other end of the second tube (6), and an extension tube (9) is fixedly installed on the other side of the filter (8), and an injection needle (10) is fixedly installed on the other end of the extension tube (9).

2. The anti-reflux infusion set according to claim 1, characterized in that: An air inlet (11) is fixedly installed on one end of the first tube (1) near the bottle stopper puncturer (4).

3. The anti-reflux infusion set according to claim 1, characterized in that: The outer surface of the drip pot (2) is engraved with scale lines (3). There are two scale lines (3) on the drip pot (2), located at the halfway point and the two-thirds point from the bottom up on the drip pot (2), respectively.

4. The anti-reflux infusion set according to claim 1, characterized in that: A dropper (12) is fixedly installed on the first tube body (1) at the upper end of the dripper (2), and a funnel-shaped transition piece (13) is fixedly installed at the lower end of the dripper (2). The lower end of the dripper (2) is connected to the first tube body (1) through the transition piece (13).

5. The anti-reflux infusion set according to claim 4, characterized in that: The lower interior of the drip pot (2) is fixedly equipped with a fine line (14) in a circular array, and a float (15) is fixedly installed between the other ends of the fine line (14). The diameter of the float (15) is the same as the diameter of the middle position of the transition piece (13).

6. The anti-reflux infusion set according to claim 1, characterized in that: The one-way valve (5) is fixedly mounted with wire clamps (16) in a circumferential array on its outer side. The inner diameter of the wire clamps (16) is the same as the outer diameter of the first pipe body (1).

7. The anti-reflux infusion set according to claim 1, characterized in that: A rubber plug (17) is fixedly installed inside the intravenous injection branch (7), and a sealing cap (18) is threadedly connected to the end of the intravenous injection branch (7).

8. The anti-reflux infusion set according to claim 1, characterized in that: A flow regulator (19) is fitted onto the first tube (1).

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