Air collector for dialysis blood pipe

Abstract

The utility model provides an air collector for a dialysis blood path tube, and relates to the technical field of medical auxiliary instruments. An air collector for a dialysis blood pipeline comprises an arteriovenous pot, and a branch pipeline is arranged at the top of the arteriovenous pot; the negative-pressure air collector comprises an elastic negative-pressure collecting kettle and a flow guide pipe, one end of the flow guide pipe is communicated with the negative-pressure collecting kettle, and the other end of the flow guide pipe is communicated with the top of the arteriovenous kettle. By the adoption of the automatic blood suction device, blood foam and air in the arteriovenous kettle can be automatically sucked, the situation that blood drips to the ground or pollutes the hands of nursing staff due to manual suction of an injector is avoided, and hospital infection accidents can be reduced; moreover, the alarm frequency of the machine caused by air is reduced, the satisfaction degree of a patient is improved, and a more comfortable dialysis environment is created.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and more specifically, to an air collector for dialysis blood circuits. Background Technology

[0002] Blood purification refers to the process of using certain instruments and equipment to draw a patient's blood out of the body, remove certain metabolic wastes or toxic substances through a certain procedure, and then draw the blood back into the body. The blood purification device is a complete extracorporeal circulation circuit, in which the arteriovenous chamber is an essential component.

[0003] The top of the arteriovenous reservoir in the blood circuit has a branch tubing that can be connected to a syringe for medication administration and other procedures. Clinically, when hemodialysis patients receive fluid replacement (such as albumin or other liquids in glass vials), the vent needs to be opened. Due to the heavy workload of nursing staff or an emergency requiring the handling of another patient just before the fluid replacement is finished, the nursing staff may not have time to close the fluid replacement clamp, causing air to enter the arteriovenous reservoir in the blood circuit.

[0004] When air enters the arteriovenous chamber, the machine will sound an air alarm. Clinically, nurses use a syringe connected to a branch line to aspirate the bloody foam and air from the chamber to remove the air. This process needs to be repeated several times to completely remove the air and deactivate the air alarm. During this process, there is a risk of blood contamination and increased risk of clotting in the dialyzer; furthermore, manual aspiration with a syringe may cause blood to drip onto the floor or contaminate the nurse's hands, increasing the risk of occupational exposure; and the air alarm may cause patient anxiety, potentially leading to elevated blood pressure. Utility Model Content

[0005] The purpose of this invention is to provide an air collector for dialysis blood tubing, which can automatically draw out blood foam and air from the arteriovenous chamber, avoiding the need for manual aspiration with a syringe that could cause blood to drip onto the floor or contaminate the hands of nursing staff, thus reducing the occurrence of hospital-acquired infections; moreover, it reduces the frequency of machine alarms caused by air, improves patient satisfaction, and creates a more comfortable dialysis environment.

[0006] The technical solution adopted in this utility model is as follows:

[0007] This application provides a dialysis blood circuit air collector, including an arteriovenous chamber with a branch line at the top; it also includes a negative pressure air collector, which includes a flexible negative pressure collection chamber and a guide tube with one end connected to the negative pressure collection chamber and the other end connected to the top of the arteriovenous chamber.

[0008] Furthermore, in some embodiments of this utility model, the guide tube is provided with a flow-stopping clamp.

[0009] Furthermore, in some embodiments of this utility model, the negative pressure collection vessel is transparent, and a scale is provided on the side wall of the negative pressure collection vessel.

[0010] Furthermore, in some embodiments of this utility model, the negative pressure collection vessel is provided with an opening, and the negative pressure collection vessel is detachably provided with a sealing cap for sealing the opening.

[0011] Furthermore, in some embodiments of this utility model, the negative pressure collecting pot has an installation ring at the opening, the installation ring has an external thread, the sealing cap has an internal thread, and the sealing cap is threadedly connected to the installation ring.

[0012] Furthermore, in some embodiments of this utility model, the sealing cover is provided with a cleaning hole and also includes a sealing plug, which is embedded in the cleaning hole.

[0013] Furthermore, in some embodiments of this utility model, a connecting rope is also included, one end of which is connected to the sealing plug and the other end of which is connected to the sealing cap.

[0014] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0015] This utility model provides a dialysis blood circuit air collector, including an arteriovenous chamber with a branch line at the top; it also includes a negative pressure air collector, which includes a flexible negative pressure collection chamber and a guide tube connected at one end to the negative pressure collection chamber, and the other end of the guide tube connected to the top of the arteriovenous chamber. It can automatically draw out blood foam and air from the arteriovenous chamber, avoiding manual aspiration with a syringe that could cause blood to drip onto the floor or contaminate the hands of nursing staff, thus reducing the occurrence of hospital-acquired infections; it also reduces the frequency of machine alarms caused by air, improving patient satisfaction and creating a more comfortable dialysis environment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view of the air collector for the dialysis blood circuit provided in an embodiment of this utility model;

[0018] Figure 2 A partial cross-sectional view of the location of the negative pressure collection vessel provided in an embodiment of this utility model.

[0019] Icons: 1-Arteriovenous reservoir; 2-Branch tubing; 3-Negative pressure collection reservoir; 4-Drainage tube; 5-Flow stop clamp; 6-Scale; 7-Opening; 8-Sealing cap; 9-Mounting ring; 10-Cleaning hole; 11-Sealing plug; 12-Connecting rope. Detailed Implementation

[0020] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0021] Example

[0022] Please refer to Figures 1-2 This embodiment provides a dialysis blood tubing air collector, including an arteriovenous reservoir 1 with a branch line 2 at its top. The reservoir 1 and branch line 2 are commonly used products. The branch line 2 is used to connect a syringe for drug administration and other operations. The branch line 2 can be clamped with an existing infusion tubing stop clamp. It also includes a negative pressure air collector, comprising a flexible negative pressure collection vessel 3 and a guide tube 4 connected at one end to the collection vessel 3, with the other end of the guide tube 4 connected to the top of the reservoir 1. The negative pressure collection vessel 3 is used to draw air from inside the reservoir 1 and any blood-colored foam caused by the air into the collection vessel 3 for storage.

[0023] In some embodiments, the guide tube 4 is equipped with a flow stop clamp 5. In this embodiment, the flow stop clamp 5 is used to clamp the guide tube 4. When the flow stop clamp 5 is opened, the guide tube 4 can be opened. The flow stop clamp 5 in this embodiment is an existing infusion tube flow stop clamp.

[0024] In some embodiments, the negative pressure collection vessel 3 is transparent, and the negative pressure collection vessel 3 may be made of transparent rubber. The side wall of the negative pressure collection vessel 3 is provided with a scale 6, which can be marked with 10, 20, 30, 40, 50 and 60 ml, so as to make it easy to see the volume of blood-colored foam sucked into the negative pressure collection vessel 3 through the scale 6.

[0025] like Figures 1-2 As shown, in some embodiments, the negative pressure collection container 3 has an opening 7, and the negative pressure collection container 3 is detachably equipped with a sealing cap 8 for sealing the opening 7. The negative pressure collection container 3 has a mounting ring 9 along the opening 7, the mounting ring 9 has external threads, and the sealing cap 8 has internal threads; the sealing cap 8 is threadedly connected to the mounting ring 9. The mounting ring 9 is made of a rigid material, which facilitates the installation of the sealing cap 8 onto the mounting ring 9 for sealing by rotation, and also facilitates the removal of the sealing cap 8 from the mounting ring 9 to clean the waste inside the negative pressure collection container 3.

[0026] In some embodiments, the sealing cap 8 is provided with a cleaning hole 10 and also includes a sealing plug 11. The sealing plug 11 is made of rubber and is embedded in the cleaning hole 10. By providing the cleaning hole 10, the sealing plug 11 can be removed, and the blood-colored foam temporarily stored inside the negative pressure collection container 3 can be poured into the medical waste bag through the cleaning hole 10, making the operation convenient.

[0027] Working principle: In actual use, first remove the sealing plug 11, and clamp the guide tube 4 with the flow stop clamp 5. At this time, the guide tube 4 is closed and will not conduct. Then press the negative pressure collection pot 3 to discharge most of the air inside the negative pressure collection pot 3 through the cleaning hole 10. Then plug the sealing plug 11 to seal the cleaning hole 10. At this time, since most of the air inside the negative pressure collection pot 3 has been discharged, a negative pressure state is formed inside the negative pressure collection pot 3.

[0028] The arteriovenous reservoir 1 has tubing connected to its top and bottom for blood flow, while branch tubing 2 is used to connect syringes for medication administration. When air enters the arteriovenous reservoir 1 and needs to be vented, the nurse opens the stop clamp 5, opening the drainage tube 4. Under the negative pressure inside the negative pressure collection reservoir 3, the air inside the arteriovenous reservoir 1, along with the blood-colored foam caused by the air, is drawn into the negative pressure collection reservoir 3 for temporary storage. The volume of the temporarily stored blood-colored foam can be checked using a ruler 6. After the procedure, the drainage tube 4 is closed with the stop clamp 5, the sealing plug 11 is removed, and the temporarily stored blood-colored foam and other waste in the negative pressure collection reservoir 3 is poured into a medical waste bag. Alternatively, the sealing cap 8 can be rotated out to clean the inside of the negative pressure collection reservoir 3.

[0029] Thus, the dialysis blood tubing air collector provided in this application can automatically draw out blood-colored foam and air from the arteriovenous chamber 1, avoiding the need for manual aspiration with a syringe, which could cause blood to drip onto the floor or contaminate the hands of nursing staff, thereby reducing the occurrence of hospital-acquired infections. Furthermore, it reduces the frequency of machine alarms caused by air, improving patient satisfaction, promoting harmonious doctor-patient relationships, and creating a more comfortable dialysis environment. It also facilitates nurses' operation and improves work efficiency.

[0030] like Figures 1-2 As shown, in some embodiments, a connecting rope 12 is also included, one end of which is connected to the sealing plug 11, and the other end of which is connected to the sealing cap 8. This invention, by providing the connecting rope 12, prevents the sealing plug 11 from falling off after it is removed.

[0031] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0032] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A dialysis blood tubing air collector, comprising an arteriovenous chamber, wherein a branch line is provided at the top of the arteriovenous chamber; characterized in that: It also includes a negative pressure air collector, which includes a flexible negative pressure collection vessel and a guide tube with one end connected to the negative pressure collection vessel and the other end connected to the top of the arteriovenous vessel.

2. The air collector for dialysis blood tubing according to claim 1, characterized in that: The guide tube is equipped with a flow stop clamp.

3. The air collector for dialysis blood tubing according to claim 1, characterized in that: The negative pressure collection vessel is transparent, and a scale is provided on the side wall of the negative pressure collection vessel.

4. The air collector for dialysis blood tubing according to claim 1, characterized in that: The negative pressure collection vessel has an opening, and the negative pressure collection vessel is detachably equipped with a sealing cap for sealing the opening.

5. The air collector for dialysis blood tubing according to claim 4, characterized in that: The negative pressure collecting vessel is provided with an installation ring along the opening, the installation ring is provided with external threads, the sealing cap is provided with internal threads, and the sealing cap is threadedly connected to the installation ring.

6. The air collector for dialysis blood tubing according to claim 4, characterized in that: The sealing cover has a cleaning hole and also includes a sealing plug, which is embedded in the cleaning hole.

7. A dialysis blood tubing air collector according to claim 6, characterized in that: It also includes a connecting rope, one end of which is connected to the sealing plug and the other end of which is connected to the sealing cap.

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