A kind of venous jug anti-blocking pipeline applied to blood purification pipeline system

Abstract

This utility model discloses an anti-clogging pipeline for a venous chamber in a blood purification tubing system. The anti-clogging pipeline includes a filter bag, an inlet pipe, and an outlet pipe. The inlet pipe is connected to the inlet end of the filter bag, and the outlet pipe is connected to the outlet end of the filter bag. A filter screen is provided at the outlet end of the filter bag or at the port of the outlet pipe near the filter bag. When the venous chamber is clogged, the anti-clogging pipeline is connected in parallel with the venous chamber to avoid interruption or termination of treatment, allowing treatment to continue. This also helps to save medical equipment and reduce treatment costs.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a venous reservoir anti-clogging pipeline applied to a blood purification pipeline system. Background Technology

[0002] Blood purification, also known as renal replacement therapy, is an important treatment for patients with uremia, and also a crucial treatment for critically ill patients. However, the treatment requires a continuous flow of blood to be drawn from the body. During extracorporeal circulation, blood clotting can occur, leading to tubing blockage and forcing the termination of treatment. Studies have shown that venous tubing blockage is a major cause of unplanned termination of blood purification. Unplanned termination not only leads to premature treatment but may also result in the failure of blood to return to the patient's body, causing approximately 200ml of blood to be discarded. Furthermore, continuing treatment often requires reusing the entire tubing system, increasing treatment costs.

[0003] To improve this situation, existing blood purification tubing designs have two parallel venous reservoirs, one for regular use and the other as a backup. The backup reservoir is activated when one of the reservoirs becomes clogged. However, clogs are not guaranteed to occur; they do happen occasionally. Including two reservoirs in the blood purification tubing increases manufacturing costs, and the backup reservoir is difficult to reuse even when no clog occurs, resulting in waste. Utility Model Content

[0004] The purpose of this invention is to provide a venous chamber anti-clogging pipeline for use in blood purification tubing systems. When the venous chamber is blocked, the anti-clogging pipeline is connected in parallel to the venous chamber, thereby avoiding the interruption or termination of treatment and allowing treatment to continue. Furthermore, the anti-clogging pipeline is an independent backup pipeline, which is only added when the venous chamber is blocked, thus reducing manufacturing and treatment costs.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A venous chamber anti-clogging tubing for use in a blood purification tubing system, the anti-clogging tubing comprising a filter bag, an inlet tubing, and an outlet tubing;

[0007] The inlet pipe is connected to the inlet end of the filter bag, and the outlet pipe is connected to the outlet end of the filter bag.

[0008] A filter screen is installed at the outlet end of the filter bag or at the port of the outlet pipe near the filter bag;

[0009] The filter bag contains saline solution;

[0010] When the venous chamber becomes blocked, an anti-blockage pipeline is installed in parallel with the venous chamber, and the anti-blockage pipeline is detachably connected to the blood purification pipeline system. The inlet pipeline is detachably connected to the front end of the venous chamber, and the outlet pipeline is connected to a vein in the human body.

[0011] In some implementations, the inlet pipe is provided with a first flow stop clamp, and the outlet pipe is provided with a second flow stop clamp.

[0012] In some implementations, the filter bag is made of a transparent material.

[0013] In some implementations, the inlet tubing is connected to the front end of the venous reservoir or the blood inlet tubing via a first interface. The front end can be understood as upstream in the direction of blood flow.

[0014] In some embodiments, the blood purification tubing system includes an arterial pump tubing, a dialyzer, a blood inlet tubing, a venous reservoir, and a blood outlet tubing connected in sequence.

[0015] In some implementations, the arterial pump tubing is provided with a replacement fluid connection port; the dialyzer is connected to the waste fluid pump tubing.

[0016] The beneficial effects of this utility model are as follows: the anti-clogging pipeline serves as an independent backup pipeline. When the venous chamber is blocked, the anti-clogging pipeline is connected in parallel with the venous chamber, thereby avoiding the suspension or termination of treatment. Treatment can continue, avoiding the need to replace the entire blood purification pipeline system, which helps to save medical equipment, reduce treatment costs, and reduce blood waste. Attached Figure Description

[0017] Figure 1 This is one of the structural diagrams of a blood purification pipeline system and an anti-clogging pipeline according to this utility model;

[0018] Figure 2 This is a structural diagram of the blood purification pipeline system of this utility model;

[0019] Figure 3 This is a structural diagram of the anti-clogging pipeline of this utility model;

[0020] Figure 4 This is the second structural diagram of an application of the present invention in a blood purification pipeline system and an anti-clogging pipeline;

[0021] Wherein: 100-Blood purification tubing system; 1-Arterial pump tubing; 11-Replacement fluid connection port; 2-Dialyzer; 6-Waste fluid pump tubing; 3-Blood inlet tubing; 4-Venus chamber; 5-Blood outlet tubing;

[0022] 200 - Anti-clogging pipeline; 210 - Inlet pipeline; 211 - First interface; 220 - Filter bag; 240 - Filter screen; 230 - Outlet pipeline; 251 - First flow stop clamp; 252 - Second flow stop clamp. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] refer to Figures 1 to 3 A venous reservoir anti-clogging pipeline applied to blood purification tubing systems;

[0025] refer to Figure 2 The blood purification tubing system 100 includes an arterial pump tube 1, a dialyzer 2, a blood inlet tube 3, a venous reservoir 4, and a blood outlet tube 5 connected in sequence. The inlet end of the arterial pump tube 1 is connected to the patient's artery, and the outlet end of the blood outlet tube 5 is connected to the patient's vein, so that the blood is returned to the patient after hemodialysis. The arterial pump tube 1 is provided with a replacement fluid connection port 11, which is used to provide replacement fluid. The dialyzer 2 is connected to a waste fluid pump tube 6, which is used to discharge waste fluid.

[0026] refer to Figure 3 The anti-clogging pipeline 200 includes a filter bag 220, an inlet pipeline 210, and an outlet pipeline 230;

[0027] The filter bag 220 can filter coagulation or thrombus, etc. The inlet pipe 210 is connected to the inlet end of the filter bag 220, and the outlet pipe 230 is connected to the outlet end of the filter bag 220.

[0028] A filter screen 240 is provided at the outlet end of the filter bag 220 or at the port of the outlet pipe 230 near the filter bag 220. The filter screen 240 can block the flow of coagulation or thrombus into the inlet and outlet pipe 230, thereby preventing coagulation from flowing back to the patient.

[0029] When the vein pot 4 is blocked, the anti-blockage pipeline 200 is connected in parallel with the vein pot 4.

[0030] Under normal use, the blood purification tubing system 100 performs hemodialysis and blood purification on patients;

[0031] When the venous reservoir 4 becomes blocked due to coagulation or thrombosis, an anti-blockage tubing 200 is added. The anti-blockage tubing 200 and the venous reservoir 4 form two parallel flow paths, allowing blood to return to the patient through the anti-blockage tubing 200, thus preventing treatment interruption or termination. In this case, the venous reservoir 4 can be replaced, avoiding the need to replace the entire blood purification tubing system 100, saving medical equipment and treatment costs, and reducing blood waste. Therefore, the anti-blockage tubing 200 serves as an independent backup tubing, connected in parallel to the venous reservoir 4 when it becomes blocked.

[0032] refer to Figure 1 and Figure 3 The inlet pipe 210 is equipped with a first flow stop clamp 251, and the outlet pipe 230 is equipped with a second flow stop clamp 252.

[0033] The filter bag 220 can be filled with saline solution. When in use, first loosen the first stop clamp 251 and the second stop clamp 252 to allow the saline solution to flow into the inlet pipe 210 and the outlet pipe 230, thereby expelling the air in the pipe. Then, connect it to the blood purification pipeline system 100.

[0034] The filter bag 220 is made of transparent material, which facilitates observation of blood clotting or thrombi within the filter bag 220. The filter bag 220 can be cylindrical or other shapes; there are no restrictions on the shape of the filter bag 220.

[0035] refer to Figure 1 , Figure 3 and Figure 4 The inlet pipe 210 can be connected to the front end of the venous chamber 4 or the blood input pipe 3 through the first interface 211, for example, connected to the end of the blood input pipe 3 near the venous chamber 4. The blood input pipe 3 can be provided with a bypass branch pipe connected to the inlet pipe 210. The first interface 211 can be a threaded interface or a snap-fit ​​interface, etc.

[0036] The outlet tube 230 is connected to the patient, that is, the outlet tube 230 is directly connected to the patient's human vein;

[0037] Therefore, the anti-clogging pipeline 200 is connected to the blood purification pipeline system 100 through a threaded interface, achieving a convenient detachable connection.

[0038] The inlet pipe 210, filter bag 220 and outlet pipe 230 can be assembled into one unit, meaning that once assembled, they cannot be easily or completely disassembled, making them more convenient and reliable to use.

[0039] The anti-clogging line 200 is an independent line relative to the blood purification line system 100. The anti-clogging line 200 is only connected to the blood purification line system 100 when the venous chamber 4 is blocked. If the venous chamber 4 is not blocked, there is no need to add the anti-clogging line 200, which helps to save medical equipment and reduce treatment costs.

[0040] The above description only discloses some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A venous chamber anti-clogging tubing system for use in blood purification tubing systems, characterized in that, The anti-clogging pipeline (200) includes a filter bag (220), an inlet pipeline (210), and an outlet pipeline (230); The inlet pipe (210) is connected to the inlet end of the filter bag (220), and the outlet pipe (230) is connected to the outlet end of the filter bag (220). A filter screen (240) is provided at the outlet end of the filter bag (220) or at the port of the outlet pipe (230) near the filter bag (220); The filter bag (220) contains physiological saline; the filter bag (220) is made of transparent material; When the venous chamber (4) is blocked, the anti-blockage pipeline (200) is connected in parallel with the venous chamber (4), and the anti-blockage pipeline (200) is detachably connected to the blood purification pipeline system (100). The inlet pipeline (210) is detachably connected to the front end of the venous chamber (4), and the outlet pipeline (230) is connected to the vein of the human body. When the vein pot (4) is not blocked, the anti-blockage pipeline (200) is not connected.

2. The anti-blocking pipeline for the venous jug according to claim 1, characterized in that, The inlet pipe (210) is provided with a first flow stop clamp (251), and the outlet pipe (230) is provided with a second flow stop clamp (252).

3. The anti-clogging pipeline of the venous jug according to claim 1, wherein, The inlet pipe (210) is connected to the front end of the vein pot (4) through the first interface (211).

4. The anti-blocking pipeline of the venous jug according to any one of claims 1-3, wherein, The blood purification tubing system (100) includes an arterial pump tubing (1), a dialyzer (2), a blood inlet tubing (3), a venous reservoir (4), and a blood outlet tubing (5) connected in sequence.

5. The anti-clogging tubing for a venous reservoir of a blood purification tubing system according to claim 4, wherein The arterial pump tube (1) is provided with a replacement fluid connection port (11); The dialyzer (2) is connected to the waste liquid pump pipe (6).

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