Automatic liquid stopping infusion apparatus

Abstract

The utility model provides an automatic liquid stopping infusion apparatus, and belongs to the technical field of infusion apparatuses. An automatic liquid stopping infusion apparatus comprises a dropper, the dropper is hollow, an upper connector and a lower connector are installed on the two sides of the dropper, and a flow stopping assembly is arranged in the dropper; liquid medicine can be filled through the liquid storage groove in the sealing block, so that the supporting spring can be compressed to enable the sealing block to plug the through hole, the process of sealing the through hole is completed, and when the liquid medicine continues to drip, the liquid medicine can be sealed through buoyancy of the air cavity. When the liquid medicine is used, the sealing block can open the through hole, the liquid medicine can flow out through the lower connector, after the liquid medicine is used, the sealing block blocks the through hole again under the pressure action of the liquid medicine in the liquid storage tank, the liquid stopping effect is achieved, the liquid medicine cannot flow back, blood of a patient cannot flow back, and meanwhile air is prevented from entering the body of the patient.

Description

Technical Field

[0001] The utility model belongs to the field of infusion sets, and in particular relates to an automatic liquid-stopping infusion set. Background Art

[0002] An infusion set is a common medical consumable. After being sterilized, it establishes a channel between the vein and the medicine and is used for intravenous infusion. It is generally composed of eight parts connected together, including an intravenous needle or injection needle, a needle cap, an infusion hose, a medicine filter, a flow regulator, a drip pot, a bottle stopper puncture device, and an air filter. Some infusion sets also have injection parts, medicine adding ports, etc.

[0003] When the infusion set is in use, if the infusion is not stopped in time after the liquid medicine is used up, gas may enter the patient's body, causing harm to the patient. In addition, when there is less liquid medicine in the infusion set, blood reflux may occur. Utility Model Content

[0004] The utility model aims at solving the deficiencies of the prior art and provides an automatic liquid-stopping infusion device.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic liquid-stopping infusion device, comprising a dropper, characterized in that: the inside of the dropper is hollow, an upper interface and a lower interface are installed on both sides of the dropper, and a flow-stopping component is provided inside the dropper;

[0006] The flow-stopping assembly comprises a slide bar fixed at the bottom end of the dropper, a sealing block is slidably arranged on the slide bar, and the sealing block is mounted on one side end surface of the slide bar through a supporting spring.

[0007] Optionally, a liquid storage tank is provided at one end of the sealing block, and a sliding cavity is provided at the other end, the sliding cavity is mounted on the sliding rod, the support spring is located in the sliding cavity, and an air cavity is also provided inside the sealing block, and the air cavity is located on the outer peripheral side of the sliding cavity.

[0008] Optionally, the sliding rod is fixed at the bottom of the dropper, the sliding rod is hollow inside, at least two limit rods are fixed on the outer side of the sliding rod, the other end of the limit rod is fixed to the inner wall of the dropper, and at least two through holes are opened on the outer side of the sliding rod, and the through holes are connected to the inside of the sliding rod.

[0009] Optionally, a sealing ring is further fixed on the outer peripheral side of the sliding rod, and the sealing ring is located between the through hole and the limiting rod, wherein the through hole is close to one side of the sealing block.

[0010] Optionally, the upper interface is installed on the top of the dropper, that is, on the side away from the flow-stop component, and the lower interface is located on the side close to the flow-stop component, and the upper interface extends a section into the dropper.

[0011] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Due to the setting of the flow-stop component, the medicine liquid can be filled through the liquid storage tank on the sealing block, so that the support spring can be compressed to make the sealing block block block the through hole, thereby completing the process of sealing the through hole. When the medicine liquid continues to drip, the buoyancy of the air cavity can make the sealing block open the through hole, and the medicine liquid can flow out through the lower interface. When the medicine liquid is used up, the pressure of the medicine liquid in the liquid storage tank causes the sealing block to block the through hole again, completing the effect of stopping the liquid, so that the medicine liquid will not flow back, thereby causing the patient's blood to flow back, and also preventing air from entering the patient's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0016] 10. Dropper; 11. Upper interface; 12. Lower interface; 13. Sliding rod; 14. Through hole; 15. Sealing block; 16. Liquid storage tank; 17. Air cavity; 18. Support spring; 19. Sliding cavity; 20. Limiting rod; 21. Sealing ring. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0018] As shown in FIG1-3, an automatic liquid-stopping infusion device includes a dropper 10, characterized in that: the dropper 10 is hollow, an upper interface 11 and a lower interface 12 are installed on both sides of the dropper 10, a flow-stop component is provided inside the dropper 10, the upper interface 11 is installed at the top of the dropper 10, that is, the side away from the flow-stop component, the lower interface 12 is located on the side close to the flow-stop component, and the upper interface 11 extends a section into the dropper 10;

[0019] The flow stop assembly includes a slide rod 13 fixed to the bottom end of the dropper 10, a sealing block 15 slides on the slide rod 13, and the sealing block 15 is installed on one side end surface of the slide rod 13 through a supporting spring 18. A liquid storage tank 16 is provided at one end of the sealing block 15, and a sliding cavity 19 is provided at the other end. The sliding cavity 19 is sleeved on the slide rod 13, and the supporting spring 18 is located in the sliding cavity 19. An air cavity 17 is also provided inside the sealing block 15, and the air cavity 17 is located on the outer peripheral side of the sliding cavity 19.

[0020] The slide bar 13 is fixed at the bottom of the dropper 10. The slide bar 13 is hollow inside. At least two limit rods 20 are fixed on the outer peripheral side of the slide bar 13. The other end of the limit rod 20 is fixed on the inner wall of the dropper 10. At least two through holes 14 are also opened on the outer peripheral side of the slide bar 13. The through holes 14 are connected to the inside of the slide bar 13. A sealing ring 21 is also fixed on the outer peripheral side of the slide bar 13. The sealing ring 21 is located between the through holes 14 and the limit rods 20. The sealing performance of the sealing block 15 can be increased by the sealing ring 21, wherein the through hole 14 is close to one side of the sealing block 15.

[0021] When in use, when the dropper 10 starts to drip, the liquid medicine will first drip into the liquid storage tank 16 through the upper interface 11, and the sealing block 15 will move closer to the lower interface 12 due to the weight of the liquid medicine in the liquid storage tank 16. The liquid storage tank 16 can compress the support spring 18 to block the through hole 14, and the liquid storage tank 16 will be filled and then flow into the dropper 10. As the liquid medicine increases, after overflowing the air cavity 17, the buoyancy generated in the air cavity 17 and the elastic force of the support spring 18 will push the sealing block 15 to move closer to the upper interface 12. The opening 11 moves, thereby opening the through hole 14, allowing the medicine to flow normally. When the medicine is used up, the medicine gradually falls below the air cavity 17, and the air cavity 17 cannot generate buoyancy. At this time, the medicine in the liquid storage tank 16 is still full, and the support spring 18 can be compressed to block the through hole 14 to prevent the medicine from being used further. At the same time, the lower interface 12 is also sealed to prevent the medicine from flowing back, thereby causing the patient's blood to flow back. When it is used again, the medicine is dripped into the dropper 10 again, and the sealing block 15 can be automatically opened.

[0022] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. An automatic stop-liquid infusion device, comprising a dropper (10), characterized in that: The dropper (10) is hollow inside, an upper interface (11) and a lower interface (12) are installed on both sides of the dropper (10), and a flow-stopping component is provided inside the dropper (10); The flow-stopping assembly comprises a slide bar (13) fixed at the bottom end inside the dropper (10), a sealing block (15) sliding on the slide bar (13), and the sealing block (15) is mounted on one end surface of the slide bar (13) via a supporting spring (18).

2. The automatic stop-liquid infusion device according to claim 1, characterized in that: The sealing block (15) has a liquid storage tank (16) at one end and a sliding cavity (19) at the other end. The sliding cavity (19) is mounted on the sliding rod (13). The supporting spring (18) is located in the sliding cavity (19). The sealing block (15) also has an air cavity (17) inside. The air cavity (17) is located on the outer peripheral side of the sliding cavity (19).

3. The automatic stop-liquid infusion device according to claim 1, characterized in that: The slide bar (13) is fixed at the bottom of the dropper (10); the slide bar (13) is hollow; at least two limit rods (20) are fixed on the outer peripheral side of the slide bar (13); the other end of the limit rod (20) is fixed on the inner wall of the dropper (10); at least two through holes (14) are also opened on the outer peripheral side of the slide bar (13); the through holes (14) are connected to the inside of the slide bar (13).

4. The automatic stop-liquid infusion device according to claim 3, characterized in that: A sealing ring (21) is also fixed on the outer peripheral side of the sliding rod (13), and the sealing ring (21) is located between the through hole (14) and the limiting rod (20), wherein the through hole (14) is close to one side of the sealing block (15).

5. The automatic stop-liquid infusion device according to claim 1, characterized in that: The upper interface (11) is installed at the top of the dropper (10), that is, at a side away from the flow-stopping component, and the lower interface (12) is located at a side close to the flow-stopping component. The upper interface (11) extends a section into the dropper (10).

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