CN221636922U - Automatic cut-off infusion tube - Google Patents

Abstract

The utility model provides an automatic stop infusion tube, which includes a drip bucket, an interception assembly is arranged inside the drip bucket, the top of the drip bucket is connected to a liquid inlet pipe, the bottom of the drip bucket is connected to a liquid outlet pipe, the interception assembly includes an anti-backflow tube arranged inside the drip bucket, a connecting rod is slidably arranged inside the anti-backflow tube, a float is fixedly connected to the bottom of the connecting rod, a through groove is provided inside the anti-backflow tube, a slide groove is provided inside the anti-backflow tube, the outer side of the connecting rod is slidably matched with the inner wall of the slide groove, and one side of the connecting rod is fixedly connected to a limiting block. The automatic stop infusion tube provided by the utility model solves the problem that during the infusion process or when the liquid medicine is infused or stopped automatically, when the hydraulic pressure is less than the venous pressure, if the flow rate regulator is not closed in time or the needle punctured in the vein is not pulled out, the patient's venous blood will flow back into the infusion tube, thereby causing blood return.

Description

Automatic stop infusion tube

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an automatic stop infusion tube.

Background Art

Intravenous infusion is a method of injecting large amounts of sterile liquids, electrolytes, and drugs into the body through veins by using the principles of atmospheric pressure and liquid static pressure. At present, the most commonly used infusion method in hospitals is gravity infusion. Due to the gravity of the drug itself, the hydraulic pressure of the drug is higher than that of the human veins, ensuring that the drug is injected into the patient's blood.

However, during the infusion process or when the infusion of the medicine is completed or stopped automatically, when the hydraulic pressure is less than the venous pressure, if the flow regulator is not closed in time or the needle punctured in the vein is not removed, the patient's venous blood will flow back into the infusion tube, resulting in blood return, which will pose a threat to the patient's safety and endanger human health.

It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the invention, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to a person skilled in the art. Therefore, the above content belongs to the technical cognition of the inventor and does not necessarily constitute prior art.

Utility Model Content

In view of this, the purpose of the present invention is to provide an automatic stop infusion tube to solve the problems raised in the above background technology.

The automatic stop infusion tube provided by the utility model comprises a drip bucket, wherein a stop assembly is arranged inside the drip bucket, the top of the drip bucket is connected with a liquid inlet pipe, and the bottom of the drip bucket is connected with a liquid outlet pipe.

As the utility model provides an automatic stop infusion tube, preferably, the stop assembly includes an anti-backflow tube arranged inside the drip bucket, a connecting rod is slidably arranged inside the anti-backflow tube, a float is fixedly connected to the bottom of the connecting rod, and a through groove is opened inside the anti-backflow tube.

As the utility model provides an automatic stop infusion tube, preferably, a slide groove is provided inside the anti-backflow tube, and the outer side of the connecting rod is slidably matched with the inner wall of the slide groove.

As the utility model provides an automatic stop infusion tube, preferably, one side of the connecting rod is fixedly connected to a limiting block.

As the utility model provides an automatic stop infusion tube, preferably, the outer side of the drip bucket is connected to an injection tube, and a sealing head is arranged inside the injection tube.

Compared with the prior art, the beneficial effects of the utility model are:

The automatic infusion tube is automatically stopped by arranging a drip bucket, wherein the top and bottom of the drip bucket are respectively connected with a liquid inlet pipe and a liquid outlet pipe, the medicine liquid enters the drip bucket through the liquid inlet pipe, and the medicine liquid in the drip bucket enters the anti-reflux pipe through the through groove, so that the medicine liquid fills the drip bucket and the inside of the anti-reflux pipe, the float is a silica gel ball, so that the float can float on the liquid surface, the medicine liquid is discharged through the liquid outlet pipe, and the infusion is performed, when the medicine liquid is infused, the float automatically moves down in the anti-reflux pipe as the liquid level drops, the float is supported by a connecting rod, so that the float can rise and fall smoothly in the anti-reflux pipe as the liquid level rises and falls, as the liquid decreases, the medicine liquid in the anti-reflux pipe is insufficient to support the floating of the float, the float falls back and enters the port of the liquid outlet pipe, the liquid level no longer drops, thereby avoiding the blood return phenomenon caused by untimely liquid interruption.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a preferred embodiment of the automatic stop infusion tube provided by the utility model;

FIG. 2 is a schematic structural diagram of the stop assembly shown in the present invention.

Numbers in the figure: 1. Drip bucket; 2. Stop assembly; 21. Anti-backflow pipe; 22. Connecting rod; 23. Float; 24. Through groove; 3. Liquid inlet pipe; 4. Liquid outlet pipe; 5. Slide; 6. Limit block; 7. Liquid injection pipe; 8. Sealing head.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

Please refer to FIG. 1 and FIG. 2 , which illustrate an automatic stop infusion tube, including a drip bucket 1 .

In the specific implementation process, as shown in FIG. 1 and FIG. 2 , a stop assembly 2 is provided inside the drip bucket 1 , a liquid inlet pipe 3 is connected to the top of the drip bucket 1 , and a liquid outlet pipe 4 is connected to the bottom of the drip bucket 1 .

The interception assembly 2 includes a backflow prevention tube 21 disposed inside the drip bucket 1 , a connecting rod 22 is slidably disposed inside the backflow prevention tube 21 , a float 23 is fixedly connected to the bottom of the connecting rod 22 , and a through groove 24 is opened inside the backflow prevention tube 21 .

A sliding groove 5 is provided inside the anti-backflow pipe 21 , and the outer side of the connecting rod 22 is slidably matched with the inner wall of the sliding groove 5 .

One side of the connecting rod 22 is fixedly connected to the limiting block 6 .

The outside of the drip bucket 1 is connected to a liquid injection pipe 7 , and a sealing head 8 is provided inside the liquid injection pipe 7 .

It should be noted that: by setting the drip bucket 1, the top and bottom of the drip bucket 1 are respectively connected with a liquid inlet pipe 3 and a liquid outlet pipe 4, the liquid medicine enters the drip bucket 1 through the liquid inlet pipe 3, and the liquid medicine in the drip bucket 1 enters the anti-backflow pipe 21 through the through groove 24, so that the liquid medicine fills the drip bucket 1 and the anti-backflow pipe 21, the float 23 is a silica gel ball, so that the float 23 can float on the liquid surface, the liquid medicine is discharged through the liquid outlet pipe 4, and the infusion is performed. When the liquid medicine is infused, the float 23 automatically moves down in the anti-backflow pipe 21 as the liquid level drops, and is connected to the connecting rod 22. The float 23 is supported so that it can rise and fall smoothly in the anti-backflow tube 21 as the liquid level rises and falls. As the liquid decreases, the medicine in the anti-backflow tube 21 is insufficient to support the floating of the float 23, and the float 23 falls back and enters the end of the liquid outlet pipe 4. The liquid level no longer drops, thereby avoiding the blood return caused by untimely liquid interruption. The connecting rod 22 is limited by the slide groove 5 and the limit block 6. The injection tube 7 is provided to facilitate the addition of medicines such as cardiotonic drugs into the drip bucket 1, and the injection tube 7 is sealed and protected by the sealing head 8.

The working principle of the automatic stop infusion tube provided by the utility model is as follows:

When in use, by setting the drip bucket 1, the top and bottom of the drip bucket 1 are respectively connected with the liquid inlet pipe 3 and the liquid outlet pipe 4, the liquid medicine enters the drip bucket 1 through the liquid inlet pipe 3, and the liquid medicine in the drip bucket 1 enters the anti-backflow pipe 21 through the through groove 24, so that the liquid medicine fills the drip bucket 1 and the anti-backflow pipe 21. The float 23 is a silica gel ball, so that the float 23 can float on the liquid surface, and the liquid medicine is discharged through the liquid outlet pipe 4 for infusion. When the liquid medicine is infused, the float 23 automatically moves down in the anti-backflow pipe 21 as the liquid level drops, and the float 23 is connected to the anti-backflow pipe 21 through the connecting rod 22. The float 23 is supported so that the float 23 can rise and fall smoothly in the anti-backflow tube 21 as the liquid level rises and falls. As the liquid decreases, the medicine in the anti-backflow tube 21 is insufficient to support the floating of the float 23, and the float 23 falls back and enters the end of the liquid outlet pipe 4. The liquid level no longer drops, thereby avoiding the blood return caused by untimely liquid interruption. The connecting rod 22 is limited by the slide groove 5 and the limit block 6. The injection tube 7 is provided to facilitate the addition of medicines such as cardiotonic agents into the drip bucket 1, and the injection tube 7 is sealed and protected by the sealing head 8.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (5)

1. An automatic stop infusion tube, characterized in that it comprises a drip bucket (1), a stop assembly (2) is arranged inside the drip bucket (1), the top of the drip bucket (1) is connected to a liquid inlet pipe (3), and the bottom of the drip bucket (1) is connected to a liquid outlet pipe (4). 2. The automatic stop infusion tube according to claim 1 is characterized in that the stop assembly (2) includes a backflow prevention tube (21) arranged inside the drip bucket (1), a connecting rod (22) is slidably arranged inside the backflow prevention tube (21), a float (23) is fixedly connected to the bottom of the connecting rod (22), and a through groove (24) is opened inside the backflow prevention tube (21). 3. The automatic stop infusion tube according to claim 2 is characterized in that a slide groove (5) is opened inside the anti-backflow tube (21), and the outer side of the connecting rod (22) is slidably matched with the inner wall of the slide groove (5). 4. The automatic stop infusion tube according to claim 2 is characterized in that one side of the connecting rod (22) is fixedly connected to a limiting block (6). 5. The automatic stop infusion tube according to claim 1 is characterized in that the outer side of the drip bucket (1) is connected to an injection tube (7), and a sealing head (8) is provided inside the injection tube (7).