KR102504345B1 - Device for preventing air inflow of fluid injection equipment - Google Patents

Abstract

The present invention relates to a drip tube connected from an infusion container storing infusion solution to confirm a state in which the infusion solution falls by a predetermined amount, a supply hose connected to the drip tube, an infusion controller for controlling the supply amount of the infusion into the body, and a patient A device for blocking air inflow of a fluid supply device used in a fluid supply device including a syringe injected into a blood vessel of a patient, including a blocking member for blocking the discharge pipe of the drip pipe at the same time as the completion of administration of the fluid into the patient's blood vessel, The blocking member is for sealing the discharge pipe of the drip pipe, and includes a weight portion formed of a material having a higher specific gravity than that of the infusion solution; And, it provides an air inflow blocking device of the fluid supply device including a buoyancy portion for supporting the weight portion to provide buoyancy so that the weight portion can float in the fluid.

Description

Air inflow blocking device of fluid supply {DEVICE FOR PREVENTING AIR INFLOW OF FLUID INJECTION EQUIPMENT}

The present invention relates to a fluid supply device, and more particularly, to an air inflow blocking device of a fluid supply device capable of blocking air inflow into a patient's blood vessel when all fluid is administered into the patient's body.

In general, since it takes a relatively long time to supply fluid to the body, careful care and consideration of the guardian are required to frequently check the supply amount and supply status of the fluid and observe the remaining amount during the administration process.

In the case of administering fluid to a patient using a fluid supply device, if the fluid regulator is not closed or the injection needle is not removed after the fluid administration is completed, there is a problem in that air may flow into the patient's blood vessels and cause side effects. . That is, when air is injected into the patient's blood vessel, the supply area is greatly swollen, causing pain to the patient and, in severe cases, endangering the patient's life.

In order to prevent this risk, currently, a method of checking the amount of remaining fluid in the fluid container from time to time or replacing the fluid container after a certain amount of time has elapsed regardless of the amount of fluid remaining in the fluid container is used. As a result, the workload of medical personnel such as nurses increases, or unnecessary waste of fluid is caused.

In order to solve this problem, Registered Utility Model Publication No. 0219718 discloses a spherical air inflow blocking member floating by the buoyancy of the fluid in the drip tube of the fluid supply device. However, in the case of the air inflow blocking member floating in the fluid, the specific gravity is very low, so there is a limit to sealing the discharge pipe, and a problem may occur in that the air inflow is not actually blocked.

Korean Utility Model Registration No. 0219718 (2001.01.30)

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is that the fluid is stably administered during the administration of the fluid to the patient, and when the administration of the fluid is completed, air is introduced into the blood vessel of the patient. It is to provide an air inflow blocking device of a fluid supplyer that can block the inflow.

In addition, another object of the present invention is to provide an air inflow blocking device for an infusion supply device that re-opens the discharge pipe of the drip pipe so that the infusion can be stably supplied again when the infusion container is replaced and the infusion is newly supplied. there is

In order to achieve the above object, the present invention provides a drip tube connected from an infusion container in which the infusion solution is stored so that a state in which the infusion falls by a predetermined amount can be confirmed, a supply hose connected to the infusion tube, and a body of the infusion solution. An air inflow blocking device for a fluid supply device used in a fluid supply device including a fluid regulator for controlling the amount of fluid supplied and a syringe injected into a patient's blood vessel, wherein the discharge pipe of the drip pipe is opened at the same time as the completion of fluid administration into the patient's blood vessel. It includes a blocking member for blocking, wherein the blocking member is for sealing the discharge pipe of the drip pipe, and is formed of a material having a higher specific gravity than the infusion solution; And, a buoyancy part supporting the weight part and providing buoyancy so that the weight part can float in the sap. The buoyancy part is formed to float by the buoyancy part, and the buoyancy part is formed to extend upward to the upper portion of the weight part while partially submerged in the fluid to support the weight part, and the blocking member prevents the supply of the fluid into the drip tube. When stopped, the air inflow blocking device of the infusion feeder is provided to move downward according to the decrease in the water level of the infusion tube and block the discharge pipe while the infusion remains in the lower portion of the inside of the drip tube.

According to an embodiment of the present invention, the weight portion may be formed in a round shape having a larger diameter than the diameter of the discharge pipe so that the contact area increases when the bottom portion in close contact with the discharge pipe is in close contact with the discharge pipe.

According to an embodiment of the present invention, the weight portion may be formed in a spherical shape.

According to an embodiment of the present invention, the weight portion may be made of a metal material.

According to an embodiment of the present invention, the buoyancy portion is attached to the weight portion, extends upward, and may be formed to have an empty space portion therein.

According to an embodiment of the present invention, the buoyancy part is formed of a plastic material, and the surface of the weight part may be coated with a plastic material.

According to the air inflow blocking device of the infusion supply device according to the present invention configured as described above, the infusion is completely exhausted by injecting the infusion into the patient's blood vessel and at the same time completely blocking the discharge duct connected to the patient's blood vessel, so that air is introduced into the blood vessel. It has the effect of preventing penetration.

Since the discharge pipe is blocked at the same time as when the injection of the fluid is completed, there is an advantage in that the inconvenience of having to periodically check the completion point of the injection of the fluid by a nurse or the like can be eliminated.

In addition, according to the air inflow blocking device of the infusion solution supplier according to the present invention, when the infusion solution is newly supplied by replacing the infusion container, the outlet pipe of the drip pipe is opened again, so that the infusion solution can be re-supplied stably. When the patient is equipped with an infusion supply device, the infusion container is generally replaced while infusion is continuously administered. Therefore, when a new infusion container is installed after all of the infusion in the mounted infusion container is administered, the discharge pipe of the drip tube must be opened to reliably administer the infusion. According to the blocking member according to the present invention, the discharge pipe can be reliably opened when a new fluid is introduced into the drip pipe. That is, there is an advantage in that the air inflow through the discharge pipe is blocked and the discharge pipe for fluid supply is reopened reliably.

1 is a perspective view showing a fluid supply device according to the present invention.
2 is a view showing the state of supplying fluid to the drip tube according to the present invention.
3 is a view showing a state of infusion blocking by the air inflow blocking device of the drip tube according to the present invention.

Since the present invention can be applied with various changes and can have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosure, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

These terms are only used for the purpose of distinguishing one component from another. Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a fluid supply device according to the present invention, Figure 2 is a view showing the fluid supply state of the fluid supply device according to the present invention, Figure 3 shows the fluid blocking state by the fluid supply device according to the present invention it is a drawing

As shown in Figure 1, the infusion supply device according to the present invention is connected from the infusion container 10 in which the infusion solution is stored, and the drip tube 20 to check the state in which the infusion solution falls by a predetermined amount, and the drip tube 20 ) It includes a supply hose 30 connected to the body, a fluid regulator 40 for controlling the amount of fluid supplied into the body, and a syringe 50 injected into the patient's blood vessel.

An air inflow blocking device installed in the infusion supply configured as described above is installed in the drip tube 20 to block the inflow of air into the patient's blood vessel by blocking the discharge pipe 23 at the same time when the infusion of the infusion is completed.

The drip tube 20 is formed in a hollow cylindrical shape, and may be made of a plastic transparent material such as polypropylene (PP) to check the infusion flowing into the inside.

The air inflow blocking device installed in the drip pipe 20 is a blocking member 100 for sealing and blocking the discharge pipe 23 located at the bottom of the drip pipe 20, and has an empty space inside to float in the fluid. It includes a buoyancy unit 110 having a buoyancy unit 110 and a weight unit 120 attached to the lower end of the buoyancy unit 110 to seal the discharge conduit 23.

An outflow hole 23a is formed in the center of the discharge pipe 23 of the drip pipe 20, and an outflow hole 23a forming the lower end of the drip pipe 20 so that the fluid is easily discharged through the outflow hole 23a An inclined surface 22 is formed on the upper periphery of the .

The weight part 120 has a round shape having a larger diameter than the diameter of the discharge pipe 23 so that the contact area increases when the bottom part in close contact with the discharge pipe 23 is in close contact with the inclined surface 22 of the discharge pipe 23. formed or entirely formed into a spherical shape.

The weight portion 120 is formed of a material having a higher specific gravity than that of the sap solution, and is formed of a material capable of blocking the outflow hole 23a of the discharge pipe by its own weight. The weight part 120 may be formed of a metal material. As the metal material, a material having a high specific gravity such as stainless steel (sus) may be used.

In addition, the weight part 120 may be coated with a plastic material such as PP, for example, on a surface of a metal material. Through this, direct contact between the weight portion 120 made of a metal material and the sap can be prevented, thereby improving medicinal stability. However, in the case of stainless steel, since it is a material that has been used as a material for injection needles and the like in the past and secures medicinal stability by itself, pharmaceutical stability is not secured by the presence or absence of surface coating. When the surface of the weight part 120 is coated with the same material as that of the mucus tube, for example, a plastic material such as PP, adhesion to the lower inclined surface 22 of the mucus tube 20 can be improved. In addition, bonding with the liquid-bearing unit 110 may be more advantageous. The surface coating of the weight part 120 may be formed only on a part of the surface.

The buoyancy part 110 may be attached to the upper part of the weight part 120 or integrated with the weight part 120 coated with the same material in consideration of material characteristics. The buoyancy part 110 has an empty space inside so that the weight part 120 is located in the sap, and the buoyancy part 110 can float in a state submerged in the sap to some extent, and can be implemented in various shapes. .

2 shows the state of supplying the fluid in the drip pipe 20 in a state where the blocking member 100 is accommodated in the drip pipe 20 according to the present invention, and the discharge pipe 23 formed at the lower end of the drip pipe 20 The supply hose 30 is connected to the outflow hole 23a of the supply hose 30, and the syringe 50 is connected to the end of the supply hose 30. After connecting the drip tube 20 to the lower end of the infusion container 10 using the infusion tube 11, the nurse injects the syringe 50 into the blood vessel of the patient. Nurses, guardians, etc. use the infusion regulator 40 so that the infusion in the infusion container 10 is dropped drop by drop, and while checking the falling state of the infusion, the patient's It allows fluid to be supplied into the blood vessels.

Referring to FIG. 2, when infusion is stored in the infusion container 10, the infusion is filled to some extent in the main body 21 of the infusion tube 20 through the injection tube 11 of the infusion tube 20, The blocking member 100 is floating in a state submerged to some extent in the sap.

Specifically, the weight portion 120 of the blocking member 100 maintains a submerged state in the sap, the buoyancy part 110 partially submerged in the sap, and the blocking member 100 maintains a floating state in the sap by buoyancy. will keep The blocking member 100 gradually moves downward according to the level of the fluid stored in the drip tube 20.

Infusion is supplied to the blood vessels of the patient through the discharge pipe 23 at the lower end of the drip tube 20, and the nurse or the like uses the infusion regulator 40 to control the amount of infusion supplied to the body.

When the infusion stored in the infusion container 10 is gradually reduced, the blocking member 100 moves downward according to the level of the infusion stored in the drip tube 20. Subsequently, as shown in FIG. 3, when the administration of the fluid into the blood vessel of the patient is completed and the administration of the fluid does not proceed any further, the blocking member 100 is provided with a weight part as the buoyancy of the buoyancy part 110 is lost 120) is gradually lowered by its own weight to completely seal the discharge pipe (23). As a result, the air in the drip tube 20 is blocked from being supplied into the patient's blood vessel.

When the blocking member 100 is seated in the discharge conduit 23 of the drip tube 20, fluid exists between the weight portion 120 of the blocking member 100 and the inclined surface 22, and at this time, the weight portion ( 120) and the inclined surface 22 generate tension to pull each other by the sap, and due to the weight of the weight part 120, the surface tension of the sap increases more, and the force not to escape to the outside is large. It works.

At this time, even if the drip tube 20 is inclined at a certain angle, the bottom surface of the weight part 120 is in close contact with the inclined surface 22 of the discharge pipe 23, increasing the contact area and increasing the surface tension of the weight part 120. ) is not easily separated, so that the effect of blocking air inflow into the blood vessel can be maximized.

In addition, since the weight part 120 receives its own weight, even if the drip tube 20 is slightly tilted, the function of blocking the discharge conduit 23 is not damaged.

In a state where the weight part 120 of the blocking member 100 blocks the discharge pipe 23, when the infusion container 10 is replaced and the infusion is supplied into the drip pipe 20, the buoyancy part 120 The blocking member 100 floats up again, and the discharge conduit 23 is opened. According to the present invention, when the infusion fluid flows into the drip tube 20, the buoyancy part 120 reliably lifts the weight part 120, so the weight part 120 blocks the discharge pipe even when the infusion solution is supplied. does not occur

According to the present invention, when the supply of fluid is completed, the discharge pipe 23 of the drip pipe 20 can be automatically closed to block the inflow of air into the blood vessels, and when the fluid container 10 is replaced, the discharge pipe ( 23) is opened again, so that the fluid can be safely and conveniently supplied.

Due to this, the present invention is able to eliminate the hassle of nurses and the like to periodically check the completion of the injection of the fluid.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention.

100: blocking member 110: buoyancy part
120: parts by weight

Claims (6)

A drip tube connected from an infusion container storing infusion solution to check the state in which a predetermined amount of infusion falls is confirmed, a supply hose connected to the infusion tube, an infusion controller for controlling the amount of fluid supplied to the body, and As an air inflow blocking device for a fluid supply device used for a fluid supply device including a syringe to be injected,
Including a blocking member for blocking the discharge pipe of the drip tube at the same time as the completion of administration of the fluid into the blood vessel of the patient,
The blocking member includes a weight part capable of sealing the discharge pipe of the drip tube, and a buoyancy part supporting the weight part to provide buoyancy so that the weight part can float in the infusion solution,
The weight part is formed to float by the buoyancy part in a state submerged in the infusion in the drip tube by using a material having a higher specific gravity than the infusion,
The buoyancy part is formed to extend to the upper part of the weight part, but extends upward with a part of it submerged in the sap to support the weight part,
When the supply of fluid into the drip pipe is stopped, the blocking member moves downward according to the decrease in the fluid level to block the discharge pipe while the fluid remains in the lower portion of the drip pipe. Inlet blocking device.
According to claim 1,
The weight portion is made of a spherical shape, and the bottom portion in close contact with the discharge pipe has a larger diameter than the diameter of the discharge pipe so that the contact area increases when in close contact with the discharge pipe.
According to any one of claims 1 to 2,
The air inflow blocking device of the fluid supplier, characterized in that the weight portion is made of a metal material.
Following paragraph 1,
The buoyancy unit is attached to the weight unit, extends upward, and has an empty space unit therein.
According to claim 4,
The buoyancy part is formed of a plastic material, and the surface of the weight part is coated with a plastic material. delete

Images