CN102319462A - A structure-improved anti-bubble rapid exhaust infusion set - Google Patents

Abstract

The present invention belongs to the technical field of medical infusion devices, and in particular, relates to a structurally improved bubble-proof rapid exhaust infusion device, which includes a drip bucket, the upper end of which is connected to an upper drip tube, the lower end of which is connected to a lower drip tube, and an air-insulating cover body, which cooperates with the lower drip tube, and the air-insulating cover body or the lower drip tube is provided with an bubble-proof liquid outlet groove for allowing liquid to flow from bottom to top into the lower drip tube. The present invention has a simple structure and low production cost, and can achieve the purpose of automatically, quickly and thoroughly exhausting the air in the infusion device, does not require medical staff to perform exhaust operations, has a fast exhaust speed, and is safe and reliable.

Description

A structure-improved anti-bubble rapid exhaust infusion set

technical field

The invention belongs to the technical field of medical infusion sets, in particular to a structure-improved anti-bubble rapid exhaust infusion set.

Background technique

The infusion set is a kind of medical device that is often used in the treatment of diseases, and it is necessary to use the infusion set when infusing the patient. At present, the common infusion set commonly used in the medical field is made up of insertion needle, air inlet pipe, upper infusion tube, dropping funnel, lower infusion tube, regulating switch, filter and venous needle. Ordinary infusion set, at the beginning of the infusion, when the liquid medicine enters the dripping funnel, due to the dual influence of gravity and pressure on the liquid medicine, it is very easy to form a gas-liquid mixture of gas and liquid medicine, and the gas-liquid mixture will quickly enter the bottom of the dripping funnel at the same time. In the infusion catheter, air bubbles are formed during infusion. At the same time, because the tiny air bubbles in the lower infusion tube have surface tension, these tiny air bubbles will be adsorbed on the inner wall of the lower infusion tube during the infusion process, and it is difficult to get rid of the air bubbles generated thereby. These air bubbles have the danger of entering the patient's body during the infusion process, causing the hazard of air embolism in the patient due to the air bubbles.

Therefore, before the infusion, the medical personnel must discharge the air bubbles in the lower infusion tube completely before infusion. Usually, the manual method of removing gas is: after inserting the cork puncturer into the infusion bottle stopper, first squeeze the dripping funnel by hand to make the medicine liquid enter the dripping funnel, and hang the dripping funnel upside down at the same time, when a certain amount of liquid is filled in the dripping funnel After liquid medicine, quickly place the dropping funnel vertically to prevent the generation of a large number of air bubbles; another method is to close the regulator first, and then slowly open the regulator after a certain amount of medicine liquid is filled in the dropping funnel, so that Reduce the generation of air bubbles. These manual methods are all cumbersome and time-consuming, and are not easy to discharge the air in the infusion set; Medical personnel need to get rid of the air remaining in the infusion set bit by bit again, and the stability of the exhaust is not high, which is not conducive to emergency infusion and rescue of critically ill patients.

Contents of the invention

The object of the present invention is to address the deficiencies of the prior art, and provide an anti-bubble quick-exhaust infusion set with improved structure, which can prevent the generation of air bubbles and realize the purpose of automatically and quickly removing the air in the infusion set.

The present invention is achieved by the following techniques.

An anti-bubble rapid exhaust infusion set with improved structure, which includes a dripping funnel, the upper end of the dropping funnel is connected to the upper dripping pipe, the lower end of the dropping funnel is connected to the lower dripping pipe, and an air insulation Cover, the air-insulated cover cooperates with the lower drip tube, and the air-insulated cover or the lower drip tube is provided with an anti-bubble discharge liquid that allows the liquid to flow into the lower drip tube from bottom to top groove.

Wherein, the air-insulated cover is provided with an anti-bubble outlet tank for liquid to flow into the lower dripping pipe from bottom to top, the air-insulated cover is provided with a protruding structure, and the lower dripping pipe is provided with There is a limiting structure, and the protruding structure cooperates with the limiting structure.

Wherein, the air-insulated cover is provided with an anti-bubble outlet tank that allows the liquid to flow into the lower dripping pipe from bottom to top, the inner side of the air-insulated cover is provided with a groove, and the lower dripping pipe A step is provided, and the groove cooperates with the step.

Wherein, the lower dripping pipe is provided with an anti-bubble outlet tank for liquid to flow into the lower dripping pipe from bottom to top, the inner side of the air isolation cover is provided with grooves, and the lower dripping pipe is provided with Step, the groove is matched with the step; the step is provided with an anti-bubble liquid outlet tank that allows the liquid to flow into the lower dripping pipe from bottom to top, and the lower edge of the air insulation cover is higher than the The lower edge of the anti-bubble out of the tank.

Wherein, the lower end of the dropping funnel is provided with a clamping rod, and the lower end of the air insulation cover is extended with a circular platform, and the circular platform is provided with a clamping groove, and the clamping rod is closely matched with the clamping groove.

Wherein, the lower drip tube includes a first lower drip tube and a second lower drip tube, and the first lower drip tube and the second lower drip tube are detachably connected; the first lower drip tube and the second lower drip tube A filter structure is provided at the joint of the lower dripping pipe.

Wherein, the first lower dripping pipe is threadedly connected with the second lower dripping pipe.

Wherein, the filter structure is a filter net.

Wherein, the filter structure is a filter membrane.

Wherein, there are two or more than two anti-bubble liquid outlet tanks.

The beneficial effect of the present invention is: a kind of structure improved anti-bubble rapid exhaust infusion device of the present invention, it comprises drip funnel, the upper end of described drip funnel is connected with upper drip tube, and the lower end of described drip funnel is connected with The lower dripping tube is connected, and also includes an air-insulated cover, which is matched with the lower dripping tube, and the air-insulated cover or the lower dripping tube is provided to allow the liquid to flow from bottom to top. Flow into the anti-bubble outlet tank of the drip tube.

When the present invention is in the working state, the liquid drips down through the upper dripping tube and accumulates in the dropping funnel. When the liquid level in the dropping funnel exceeds the height of the lower edge of the anti-bubble liquid tank, the liquid is subjected to gravity and pressure The double effect of the air bubble quickly enters the anti-bubble liquid outlet tank; then through the gap between the air isolation cover and the lower drip tube, the liquid in the gap gradually rises, and the liquid flows into the lower drip tube from bottom to top, during this process , the liquid will not produce air bubbles; the air insulation cover can prevent air from entering the drip tube, effectively preventing air bubbles. In addition, when the liquid in the dropping funnel generates bubbles and the liquid enters the anti-bubble outlet tank, as soon as the bubbles touch the tank wall of the anti-bubble outlet tank, the bubbles will burst quickly, and the anti-bubble outlet tank can effectively prevent the bubbles from entering Lower the drip tube.

The invention has simple structure, low production cost, can realize the purpose of automatically, quickly and thoroughly removing the air in the infusion set, does not need medical personnel to perform exhaust operation, has fast exhaust speed, and is safe and reliable.

Description of drawings

Fig. 1 is a schematic structural view of an improved anti-bubble rapid exhaust infusion set according to Embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of an exploded structure of an air-insulated cover and a drip tube of an improved anti-bubble rapid exhaust infusion set according to Embodiment 1 of the present invention.

Fig. 3 is a schematic diagram of an exploded structure of an air-insulated cover and a dripping tube of an improved anti-bubble rapid exhaust infusion set according to Embodiment 2 of the present invention.

Fig. 4 is a schematic diagram of an exploded structure of an air-insulated cover and a dripping tube of an improved anti-bubble rapid exhaust infusion set according to Embodiment 3 of the present invention.

Fig. 5 is a structural schematic diagram of an improved anti-bubble rapid exhaust infusion set according to Embodiment 4 of the present invention.

Fig. 6 is a schematic diagram of an exploded structure of an improved anti-bubble rapid exhaust infusion set according to Embodiment 4 of the present invention.

Fig. 7 is a structural schematic diagram of an air-insulated cover of an air-insulated cover of an improved anti-bubble rapid exhaust infusion set according to Embodiment 4 of the present invention.

Fig. 8 is a schematic diagram of an exploded structure of the lower dripping tube of an improved anti-bubble rapid exhaust infusion set according to Embodiment 5 of the present invention.

reference sign

1——Drip funnel 2——Upper drip tube 3——Drop drip tube

4——air insulation cover 5——anti-bubble liquid tank 6——protruding structure

7——limiting structure 8——groove 9——step

10——Card bar 11——Card slot

12—the first dropper 13—the second dropper 14—the round platform.

Detailed ways

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

Example 1.

As shown in Figures 1 to 2, a kind of anti-bubble fast exhaust infusion set with improved structure in this embodiment includes a dripping funnel 1, the upper end of the dripping funnel 1 is connected to the upper dripping pipe 2, and the dripping funnel 1 is connected to the upper dripping pipe 2. The lower end of the bucket 1 is connected to the lower dripping pipe 3, and also includes an air insulation cover 4, which cooperates with the lower dripping pipe 3, and the air insulation cover 4 or the lower dripping The liquid pipe 3 is provided with the anti-bubble outlet tank 5 that makes the liquid flow into the lower drip pipe 3 from bottom to top.

Specifically, the air insulation cover 4 in this embodiment is provided with an anti-bubble outlet tank 5 that allows liquid to flow into the lower drip tube 3 from bottom to top.

The working principle of the present invention: during infusion, the liquid drips from the upper dripping tube 2, the dripping liquid will not immediately enter the lower dripping tube 3, and the dripping liquid falls on the air insulation cover 4 , and flow down along the side of the air insulation cover 4, and accumulate in the dropping funnel 1. Along with the increase of the liquid dripping down from the upper dripping tube 2, the liquid level of the liquid in the dropping funnel 1 rises rapidly, and the speed of the rising of the liquid level is much greater than the discharge speed of the air in the dropping funnel 1. The liquid level of the liquid in the bucket 1 rises rapidly, and the air in the dropping bucket 1 is quickly compressed, which is beneficial to emptying the air in the dropping bucket 1 of the infusion set. After the liquid level of the liquid in the dropping funnel 1 exceeds the height of the lower edge of the anti-bubble liquid outlet groove 5, the liquid in the dropping funnel 1 quickly enters the gap between the air isolation cover body 4 and the lower drip pipe 3 through the anti-bubble liquid outlet groove. In the gap, at this time, the pressure of the compressed air in the dropping funnel 1 acts on the liquid level of the liquid in the dropping funnel 1, increasing the pressure that the liquid enters the gap between the air isolation cover body 4 and the lower dripping pipe 3, plus The pressure of the liquid itself in the dropping funnel 1, under the joint action of the air pressure in the dropping funnel 1 and the hydraulic pressure of the liquid in the dropping funnel 1, makes the liquid in the dropping funnel 1 enter the air isolation cover 4 and the lower dripping pipe 3 has a greater pressure, and this pressure is far greater than the pressure of the residual air in the lower dripping tube 3, therefore, the liquid in the dropping funnel 1 can quickly enter the air isolation cover 4 and the lower dripping tube 3, and flow into the lower drip tube 3 from bottom to top, during the process of liquid flowing into the lower drip tube 3 from bottom to top, the liquid will not generate air bubbles, and at the same time, the liquid entering the lower drip tube 3 can be quickly The air remaining in the lower dripping pipe 3 is removed at a high speed, and the generation of air bubbles can be effectively prevented.

The air insulation cover body 4 can prevent air from entering the lower dripping pipe 3, effectively preventing air bubbles from producing. In addition, when the liquid in the dropping funnel 1 generates bubbles and the liquid enters the anti-bubble outlet tank 5, as long as the bubbles touch the tank wall of the anti-bubble outlet tank 5, the bubbles will quickly burst, and the anti-bubble outlet tank 5 can effectively Groundly prevent air bubbles from entering the lower drip tube 3.

The invention has simple structure, low production cost, can realize the purpose of automatically, quickly and thoroughly removing the air in the infusion set, does not need medical personnel to perform exhaust operation, has fast exhaust speed, and is safe and reliable.

Wherein, the air insulation cover 4 is provided with a protruding structure 6 , and the lower drip tube 3 is provided with a limiting structure 7 , and the protruding structure 6 cooperates with the limiting structure 7 . When the present embodiment is in working condition, the air-insulating cover body 4 is inverted and covers the outer wall of the lower dripping tube 3, and the cooperation of the protruding structure 6 and the limiting structure 7 makes the air-insulating cover body 4 and the lower dripping tube 3 tightly connected , Effectively isolate the air from entering the lower dripping tube 3 to prevent the generation of air bubbles.

Wherein, there are two or more than two anti-bubble liquid outlet tanks 5 . Two or more anti-bubble outlet tanks 5 are evenly distributed, so that the liquid enters the lower dripping pipe 3 evenly.

Example 2.

As shown in Figure 3, the difference between this embodiment and Embodiment 1 is that a groove 8 is provided on the inner side of the air insulation cover 4 in this embodiment, and a step 9 is provided on the lower dripping tube 3, so that The groove 8 cooperates with the step 9. When the present embodiment is in working condition, the air-insulating cover 4 is inverted and covers the outer wall of the lower dripping tube 3, and the air-insulating cover 4 and the lower dripping tube 3 are connected through the groove 8 and the step 9, and the connection is tight. More effectively isolate the air entering the lower dripping pipe 3 to prevent the generation of air bubbles.

The step 9 is set in the middle of the lower drip tube 3, and the step 9 protrudes outward along the outer wall of the lower drip tube 3, and the step 9 passes through the outlet of the lower end of the dropping funnel 1, and 1/2 of the step 9 is set in the dropping funnel 1 , the other 1/2 is arranged outside the dropping funnel 1, and the step 9 can also be used for positioning and sealing the lower end outlet of the dropping funnel 1 to prevent liquid from leaking from the lower end outlet of the dropping funnel 1.

Features that are not explained in this embodiment are explained in Embodiment 1, and will not be repeated here.

Example 3.

As shown in Figure 4, the difference between this embodiment and Embodiment 1 is that: the lower drip tube 3 described in this embodiment is provided with an anti-bubble liquid tank that allows the liquid to flow into the lower drip tube 3 from bottom to top 5.

Wherein, the inner side of the air insulation cover 4 is provided with a groove 8, and the lower dropper 3 is provided with a step 9, and the groove 8 cooperates with the step 9. The step 9 is provided with an anti-bubble outlet tank 5 that allows the liquid to flow from bottom to top into the lower drip tube 3, and the lower edge of the air insulation cover 4 is higher than the bottom edge of the anti-bubble outlet tank 5. lower edge. When this embodiment is in working condition, the air insulation cover 4 is inverted and covered on the outer wall of the step 9, 1/2 of the step 9 is set inside the dropping funnel 1, and the other 1/2 is set outside the dropping funnel 1 to prevent air bubbles from coming out of the liquid tank The height of 5 is about 1/4 of the height of the step 9, and the lower edge of the air insulation cover 4 is higher than the lower edge of the anti-bubble liquid outlet groove 5.

The anti-bubble liquid outlet tank 5 of the present embodiment is arranged on the step 9 of the lower drip pipe 3, the position of the anti-bubble liquid outlet tank 5 is lower, and the liquid enters the anti-bubble liquid outlet tank 5 more easily and rapidly, so that the present invention The exhaust speed is faster and more stable.

Features that are not explained in this embodiment are explained in Embodiment 1, and will not be repeated here.

Example 4.

As shown in Figures 5 to 7, the difference between this embodiment and Embodiment 2 is that: the lower end of the dropping funnel 1 in this embodiment is provided with a clamping rod 10, and the lower end of the air insulation cover 4 is extended There is a round table 14, and the round table 14 is provided with a card slot 11, and the card bar 10 is closely matched with the card slot 11.

The dropping funnel 1 of this embodiment is connected to the lower dripping pipe 3 through an air-insulated cover 4 , and the dropping funnel 1 and the air-insulated cover 4 are detachably connected.

The drip funnel 1, the lower drip tube 3, and the air-insulated cover 4 of this embodiment are all independent parts, which are very convenient in processing and assembly, and do not affect the production and processing and product assembly of the entire infusion set. The production enterprise of the infusion set can realize the production of the present invention without changing the production mold, processing technology, production process and product structure of the existing traditional infusion set.

Features that are not explained in this embodiment are explained in Embodiment 2, and will not be repeated here.

Example 5.

As shown in Figure 8, the difference between this embodiment and Embodiment 4 is: the lower dripping pipe 3 described in this embodiment includes a first lower dripping pipe 12 and a second lower dripping pipe 13, the first lower dripping pipe 13 The liquid pipe 12 and the second lower dripping pipe 13 are detachably connected; the connection between the first lower dripping pipe 12 and the second lower dripping pipe 13 is provided with a filtering structure. The first lower dripping tube 12 and the second lower dripping tube 13 can be connected in a threaded connection; they can also be connected in a clamping way, or they can be bonded with flavone after the filter structure is installed therein.

Wherein, the filter structure is a filter screen or a filter membrane. The filter screen or filter membrane can further filter impurities and air bubbles in the liquid, making the transported liquid safer.

Features that are not explained in this embodiment are explained in Embodiment 4, and will not be repeated here.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present invention should be Including within the scope of the patent application of the present invention.

Claims (10)

1. A structure-improved anti-bubble fast exhaust infusion set, which includes a drip funnel, the upper end of the drip funnel is connected with the upper drip tube, and the lower end of the drip funnel is connected with the lower drip tube, its characteristics In that: it also includes an air-insulated cover, the air-insulated cover cooperates with the lower dripping tube, and the air-insulated cover or the lower dripping tube is provided to allow the liquid to flow into the lower dripping tube from bottom to top. Anti-bubble outlet tank for tubing. 2. A structure-improved anti-bubble rapid exhaust infusion set according to claim 1, characterized in that: the air-insulated cover is provided with an anti-bubble that allows the liquid to flow into the lower dripping tube from bottom to top. The air bubble outlet tank, the air insulation cover is provided with a protruding structure, and the dripping tube is provided with a limiting structure, and the protruding structure cooperates with the limiting structure. 3. A structure-improved anti-bubble rapid exhaust infusion set according to claim 1, characterized in that: the air-insulated cover is provided with an anti-bubble that allows the liquid to flow into the lower dripping tube from bottom to top. The air bubble liquid outlet groove, the inner side of the air insulation cover is provided with a groove, and the lower dripping pipe is provided with a step, and the groove is matched with the step. 4. A structure-improved anti-bubble quick-exhaust infusion set according to claim 1, characterized in that: the lower drip tube is provided with an anti-bubble outlet that allows the liquid to flow into the lower drip tube from bottom to top. A liquid tank, the inner side of the air insulation cover is provided with a groove, and the lower dripping pipe is provided with a step, and the groove is matched with the step; the step is provided so that the liquid flows from bottom to top The anti-bubble outlet tank of the lower drip tube, the lower edge of the air insulation cover is higher than the lower edge of the anti-bubble outlet tank. 5. The anti-bubble fast exhaust infusion set with improved structure according to claim 3, characterized in that: the lower end of the dropping funnel is provided with a clamping rod, and the lower end of the air insulation cover is extended with a A round table, the round table is provided with a card slot, and the card rod is closely matched with the card slot. 6. A structurally improved anti-bubble fast exhaust infusion set according to claim 5, characterized in that: said lower drip tube comprises a first lower drip tube and a second lower drip tube, the first lower drip tube The dripping tube and the second lower dripping tube are detachably connected; a filtering structure is provided at the junction of the first lower dripping tube and the second lower dripping tube. 7. The anti-bubble quick-exhaust infusion set with improved structure according to claim 6, characterized in that: the first lower drip tube and the second lower drip tube are screwed together. 8. The anti-bubble fast exhaust infusion set with improved structure according to claim 6, characterized in that: the filter structure is a filter net. 9. The anti-bubble fast exhaust infusion set with improved structure according to claim 6, characterized in that: the filter structure is a filter membrane. 10. A structurally improved anti-bubble rapid exhaust infusion set according to any one of claims 1 to 9, characterized in that there are two or more anti-bubble liquid outlet tanks.

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