CN210933186U - A one-time precision automatic liquid stop infusion set - Google Patents

Abstract

The embodiment of the utility model discloses a disposable precise automatic liquid stopping infusion apparatus, which comprises a Murphy dropper, wherein a floating block is arranged in the Murphy dropper, a sliding rod is fixedly connected below the floating block, a multi-pin bracket is fixedly arranged on the inner tube wall below the Murphy dropper, a sliding cylinder is fixedly arranged at the center of the multi-pin bracket, the sliding rod is sleeved in the sliding cylinder to slide, a stopping plug is fixedly connected at the lower end of the sliding rod, the buoyancy generated by the floating block and the gravity of the floating block, the sliding rod, the movable cylinder and the stopping plug drive the sliding rod to move in the movable cylinder, and the liquid level is lower than or higher than the length of the movable rod by controlling the length of the movable rod, so as to drive the stopping plug to move, close and open a hose below the Murphy dropper, thereby solving the problem that medical staff or patients and families in the prior art do not close a flow rate regulator, leading to the problem that air enters the lower section of the Murphy's dropper and even returns blood.

Description

A one-time precision automatic liquid stop infusion set

technical field

The embodiments of the utility model relate to the field of medical equipment, in particular to a disposable precise automatic stopper infusion device.

Background technique

At present, the disposable infusion set used by the hospital is a common medical consumable. device connection. Relying on the principle of gravity and atmospheric pressure, the liquid in the bottle flows into the vein. Under the action of atmospheric pressure, the liquid in the bottle flows into the Murphy dropper along the thinner infusion hose. When the pressure of the dropper water column is greater than the venous pressure, the liquid in the bottle flows into the vein along the hose.

However, after the liquid in the Murphy-type dropper in the prior art has been dripped, because the medical staff or the patient and their family members did not close the flow rate regulator in time, all the liquid in the Murphy-type dropper flowed into the human body, and there would be air Entering the lower part of the Murphy dropper, so when the infusion bottle is replaced, the gas in the Murphy dropper needs to be emptied, which is troublesome to operate. People need to go to the ward to check, which increases the burden on medical staff and caregivers.

Utility model content

To this end, the embodiment of the present utility model provides a one-time precise automatic liquid stop infusion set. By setting a floating block, a sliding rod, a movable cylinder and a stop plug, the buoyancy generated by the floating block and the floating block, sliding rod, movable cylinder and The gravity of the stop plug itself drives the sliding rod to move in the movable cylinder, and then by controlling the length of the movable rod, when the liquid level is lower or higher than the length of the movable rod, the stop plug is driven to move, and the softness under the Murphy dropper is reduced. The tube is closed and opened to solve the problem in the prior art that medical staff or patients and their families fail to close the flow rate regulator in time, causing air to enter the lower section of the Murphy dropper or even return blood.

In order to achieve the above purpose, the embodiments of the present utility model provide the following technical solutions:

A one-time precision automatic liquid stop infusion set, comprising a Murphy-type dropper with a float inside the Murphy-type dropper, and the cross-sectional area of the float is smaller than that in the Murphy-type dropper area, a sliding rod is fixedly connected under the floating block, a multi-leg bracket is fixedly installed on the inner tube wall at the bottom of the Murphy dropper, a sliding cylinder is fixedly installed at the center of the multi-legged bracket, and the sliding rod sleeve It is arranged in the sliding cylinder, and the sliding rod slides up and down along the sliding cylinder. A stop plug is fixedly connected to the end of the sliding rod, and the maximum diameter of the stop plug is equal to the diameter of the lower end hose of the Murphy dropper.

As a preferred solution of the present invention, the floating block is composed of an upper half of a pyramid body and a lower half of a miniature hull, the pyramid and the miniature hull are sealed and connected and both are provided with air-tight airbags.

As a preferred solution of the present invention, the surface of the pyramid body is provided with a drainage groove, and the drainage groove extends from the apex of the pyramid body to the bottom of each side surface.

As a preferred solution of the present invention, the length of the sliding rod is one-half to two-thirds of the length of the Murphy dropper.

As a preferred solution of the present invention, the cut-off plug is in the shape of a wedge with a diameter gradually decreasing downward, and a sealing ring is installed on the top of the cut-off plug, which fits with the surfaces of both sides of the Murphy dropper liquid outlet. film.

As a preferred solution of the present invention, the included angle formed between the sealing annular soft sheet and the surface of the cut-off plug is an acute angle.

As a preferred solution of the present invention, the sliding cylinder is provided with a large number of liquid passage holes, and the liquid passage holes are regular hexagonal holes.

The embodiment of the present invention has the following advantages:

By arranging a floating block, a sliding rod, a movable cylinder and a stop plug, the utility model utilizes the buoyancy generated by the floating block and the gravity of the floating block, the sliding rod, the movable cylinder and the cut-off plug to drive the sliding rod to move in the movable cylinder, and then controls the movement of the sliding rod in the movable cylinder. The length of the movable rod makes the liquid level lower or higher than the length of the movable rod, thereby driving the stop plug to move, closing and opening the hose under the Murphy dropper, and through the design of the float, not only can use The pyramid body can quickly drain the liquid, and the buoyancy can also be increased under the condition of reducing the self-weight through the miniature hull and the sealing air bag; in addition, when the liquid volume is reduced in this utility model, it can keep the infusion pipe under the Murphy type dropper through the sealing effect. When the infusion pressure is high, the air cannot enter the infusion tube in the lower section, ensuring that no air enters the infusion tube every time the liquid is exchanged, reducing the time required for exhausting during the liquid exchange process in the prior art, and there is no need to worry about the infusion after the infusion. Air enters the body.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions that the present invention can be implemented. The technical substantive significance, the modification of any structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope disclosed in the present utility model. Technical content must be able to cover the scope.

Fig. 1 is the overall structure schematic diagram in the embodiment of the present utility model;

2 is a schematic structural diagram of a floating block in an embodiment of the present invention;

3 is a schematic structural diagram of a sealed annular film in an embodiment of the present invention;

4 is a schematic structural diagram of a sliding cylinder in an embodiment of the present invention.

In the picture:

1-Murphy type dropper; 2-float; 3-slide rod; 4-slide cylinder; 5-stop plug; 6-multi-leg bracket; 7-sealing annular film; 8-liquid hole;

201-pyramid; 202-miniature hull; 203-sealing airbag; 204-drainage ditch.

Detailed ways

The embodiments of the present invention will be described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIG. 1 to FIG. 4 , the present invention provides a one-time precision automatic liquid stop infusion set, including a Murphy-type dropper 1, and the Murphy-type dropper 1 is provided with a floating block 2 inside, and the The cross-sectional area of the floating block 2 is smaller than the cross-sectional area in the tube of the Murphy-type dropper 1, and a sliding rod 3 is fixedly connected below the floating block 2, and the length of the sliding rod 3 is equal to the length of the Murphy-type dropper 1. One-half to two-thirds, a multi-leg bracket 6 is fixedly installed on the inner tube wall below the Murphy type dropper 1, and a sliding cylinder 4 is fixedly installed at the center of the multi-leg bracket 6, and the sliding rod 3 is sleeved and slid in the sliding cylinder 4 , and the lower end of the sliding rod 3 is fixedly connected with a cut-off plug 5 , the maximum diameter of the cut-off plug 5 is equal to the diameter of the lower end hose of the Murphy dropper 1 .

The specific process is: when the patient is infusion, the liquid in the infusion bottle gradually enters the Murphy type dropper 1 along with the infusion tube, because the cross-sectional area of the floating block 2 is smaller than the cross-sectional area of the Murphy type dropper 1 tube. Therefore, the liquid flows into the lower half of the Murphy-type dropper 1 from the gap between the float 2 and the Murphy-type dropper 1, and the sliding cylinder 4 is installed on the Murphy-type dropper 1 through the multi-leg bracket 6. Inside, the multi-leg bracket 6 is not only relatively stable, but also the multi-leg bracket 6 supports the sliding cylinder 4 in the center through several legs, and there is a wide gap between the legs to facilitate the flow of liquid.

When the liquid in the Murphy dropper 1 is higher than the specified height range, the float 2 is subject to the buoyancy of the liquid, because the buoyancy generated by the float 2 on the water surface is greater than the float 2 itself plus the sliding rod 3 and the stop plug 5 Therefore, the floating block 2 drives the sliding rod 3 to move upward, and the sliding rod 3 slides in the sliding cylinder 4. Since the length of the sliding rod 3 is half the length of the Murphy dropper 1, when the liquid level is higher than the ink At half the height of the Philippine dropper 1 , the sliding rod 3 separates the stop plug 5 at the bottom end from the lower hose of the Murphy dropper 1 below. At this time, the liquid flows in the Murphy dropper 1 without obstacles.

When the liquid in the infusion bottle is completely infused, the liquid in the Murphy dropper 1 gradually drops due to lack of replenishment. When the liquid level is lower than the specified height range, the floating block 2 is in itself and the sliding rod 3 and the stop plug 5. Under the action of gravity, it moves down with the water surface, and the sliding rod 3 slides down in the sliding cylinder 4. The stop plug 5 at the end of the sliding rod 3 is inserted into the hose under the Murphy dropper 1 until the water flow is cut off, so that the liquid cannot flow. , to ensure that the liquid level cannot drop, preventing air from entering the lower pipeline and returning blood.

Through the above-mentioned control, the liquid in the Murphy dropper is always kept in the range of one-half to two-thirds.

Preferably, the upper half of the floating block 2 is provided with a pyramid 201, and the lower half of the floating block 2 is provided with a micro-hull 202, the pyramid 201 and the micro-hull 202 are sealed and connected and are provided with The airbag 203 is sealed, and the buoyancy generated by the floating block 2 on the water surface is greater than the gravity of the floating block 2 itself plus the sliding rod 3 and the stop plug 5 .

The micro-hull 202 can obtain greater buoyancy under the same volume, which can reduce the volume of the float 2, and when some low-density infusions are performed, sufficient buoyancy needs to be obtained to ensure that the liquid can flow through Murphy unhindered. The type dropper 1 is used for dripping liquid from the human body, and the sealed airbag 203 is the basis for generating buoyancy, and the airbag is light, which can effectively reduce its own weight.

And the liquid in the hose above the Murphy dropper 1 just drips on the float 2, and the pyramid 201 above the float 2 can prevent the liquid from accumulating above the float, and the liquid can quickly pass through the side of the pyramid 201 Flow down, preventing the accumulation of liquid from increasing the weight of the float block 2, thereby affecting the buoyancy of the stop plug 5 rising.

More preferably, the surface of the pyramidal body 201 is provided with drainage grooves 204, and the distribution of the drainage grooves 204 extends from the apex of the pyramidal body 201 to the bottom of each side surface, and the drainage grooves 204 are conducive to guiding Liquid flow helps to quickly drain liquid above float 2.

The cut-off plug 5 is in the shape of a bottle with a diameter that gradually decreases downward. The diameter of the lower end of the cut-off plug 5 is smaller. When the movable rod 3 moves downward, the lower end of the cut-off plug 5 with a smaller diameter can easily enter the Murphy dropper. 1, and then the diameter of the stop plug 5 gradually increases and then tightly engages with the lower hose. This method not only seals tightly, but also prevents the stop plug 5 from being stuck when entering the hose, resulting in failure to seal.

And the top of the cut-off plug 5 is installed with a sealing annular soft piece 7, and the sealing annular soft piece 7 and the surface of the cut-off plug 5 form an acute angle. In contact with the bottom of the Murphy type dropper 1, since the sealing annular soft piece 7 and the surface of the stop plug 5 form an acute angle, the sealing annular soft piece 7 and the bottom of the Murphy type dropper 1 also form an included angle. When the lower hose is tightly engaged, the sealing ring-shaped soft piece 7 continues to move downward, and will fit with the bottom of the Murphy dropper 1 along with the included angle, preventing the liquid from flowing downward.

The sliding cylinder 4 is provided with a large number of liquid through holes 8. When the sliding rod 3 slides against the sliding cylinder 4, the liquid through holes 8 can reduce the contact area between the sliding cylinder 4 and the sliding rod 3 and increase the sliding movement. The contact area of the rod 3 with the water is small, and the resistance of the water is small, and the liquid through hole 8 is a regular hexagonal hole, which can make the area of the hole on the sliding cylinder 6 larger, and reduce the size of the hole with the sliding cylinder 4. friction.

Although the present utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention belong to the scope of protection of the present invention.

Claims (7)

1. A disposable precision automatic liquid stop infusion device, comprising a Murphy type dropper (1), characterized in that the Murphy type dropper (1) is internally provided with a floating block (2), and the floating The cross-sectional area of the block (2) is smaller than the cross-sectional area in the tube of the Murphy-type dropper (1). A multi-leg bracket (6) is fixedly installed on the inner tube wall of the bottom, a sliding cylinder (4) is fixedly installed at the center of the multi-leg bracket (6), and the sliding rod (3) is sleeved in the sliding cylinder (4). , and the sliding rod (3) slides up and down along the sliding cylinder (4), a stop plug (5) is fixedly connected to the end of the sliding rod (3), and the maximum diameter of the stop plug (5) is equal to Murphy The diameter of the hose at the lower end of the dropper (1). 2. A kind of disposable precision automatic liquid stop infusion device according to claim 1, characterized in that, the floating block (2) is composed of a pyramid body (201) in the upper half and a miniature hull (202 in the lower half) ), the pyramid body (201) and the miniature hull (202) are sealed and connected, and a sealing airbag (203) is provided inside both of them. 3. A kind of one-time precision automatic liquid stop infusion set according to claim 2, characterized in that, the surface of the pyramid (201) is provided with a drain (204), and the drain (204) It extends from the apex of the pyramid (201) to the bottom of each side. 4. A kind of disposable precision automatic liquid stop infusion device according to claim 2, characterized in that, the length of the sliding rod (3) is one-half to three of the length of the Murphy type dropper (1) two-thirds. 5. A disposable precision automatic liquid stop infusion set according to claim 1, characterized in that, the stop plug (5) is in the shape of a wedge whose diameter gradually decreases downward, and the stop plug (5) The top is provided with sealing annular soft sheets (7) which are fitted with the surfaces of both sides of the liquid outlet of the Murphy dropper (1). 6 . The one-time precise automatic liquid stop infusion set according to claim 5 , wherein the included angle formed between the sealing annular soft sheet ( 7 ) and the surface of the stop plug ( 5 ) is an acute angle. 7 . 7. A kind of one-time precision automatic liquid stop infusion device according to claim 1, characterized in that, a large number of liquid through holes (8) are provided on the sliding cylinder (4), and the liquid through holes ( 8) is a regular hexagonal hole.

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