Multifunctional returning filter applied to blood returning process

Abstract

The utility model provides a multifunctional return filter applied to a blood return process. The multifunctional return filter comprises a return upper shell and an interceptor lower shell which are symmetrically arranged up and down, a filter screen is arranged between the return upper shell and the interceptor lower shell, a first connecting pipe is arranged at the top of the return upper shell, and a second connecting pipe is arranged at the bottom of the return lower shell; the first connecting pipe and the second connecting pipe are designed to be L-shaped, and the connecting parts of the first connecting pipe and the second connecting pipe and an external pipeline are horizontally arranged. Through the first connecting pipe and the second connecting pipe which are designed to be L-shaped, the connecting position of the connecting pipe and an external pipeline is transversely arranged, the stability during connection is improved, and the connecting position is prevented from falling off.

Description

Technical Field

[0001] This application relates to the field of blood transfusion technology, and in particular to a multifunctional transfusion filter used in the blood transfusion process. Background Technology

[0002] The statements in this section are merely background information related to this application and do not necessarily constitute prior art.

[0003] As a key component of disposable centrifugal bag-type blood component separators, the blood return filter filters out solid impurities such as blood clots and traps air when blood is returned to the human body, preventing impurities and gases from entering the human body through veins.

[0004] The main danger of gas entering the veins is "air embolism." When a large amount of gas accidentally enters the venous system, it circulates with the blood and may eventually block the pulmonary artery or its branches, preventing blood from being properly oxygenated through the lungs. Mild air embolism may cause temporary discomfort such as chest pain and difficulty breathing. However, if a large amount of gas enters the veins, the air embolism can become very serious and even life-threatening. Blood clots entering the body can also cause serious harm. If the clot is large, it can prevent normal blood flow and even cause irreversible damage due to oxygen deprivation in vital organs, which can also be life-threatening in severe cases.

[0005] When existing blood transfusion filters are used with blood transfusion tubing, the vertical connection points are prone to detachment due to accidental contact with the tubing. Due to their light weight, they are also prone to tilting or even being placed horizontally due to accidental contact or other reasons, which affects the efficiency and filtration effect of blood transfusion. Summary of the Invention

[0006] To address the problems in the background art, this application proposes a multifunctional transfusion filter for use in blood transfusion processes.

[0007] This application provides a multifunctional blood transfusion filter for use in the blood transfusion process, comprising: a transfusion upper shell and a retention lower shell arranged symmetrically at the top and bottom, a filter screen being provided between the transfusion upper shell and the retention lower shell, a first connecting pipe being provided at the top of the transfusion upper shell, and a second connecting pipe being provided at the bottom of the transfusion lower shell.

[0008] The first and second connecting pipes are L-shaped and are horizontally connected to the external pipeline.

[0009] Preferably, the first connecting pipe and the second connecting pipe are integrally formed with the upper shell of the return conveyor and the lower shell of the interceptor, respectively.

[0010] Preferably, the filter extends beyond the outer periphery of the upper casing and the lower casing of the trap, forming a first annular edge.

[0011] Preferably, the first connecting pipe and the second connecting pipe have a second edge extending from the side away from their openings to the first edge of the filter screen.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] This application uses an L-shaped design for the first and second connecting pipes to place the connection point with the external pipeline horizontally, which increases the stability of the connection and prevents the connection point from falling off.

[0014] This application utilizes a first and second edge design for easy clamping, preventing accidental contact or the flexible horizontal placement of the pipeline, thus ensuring efficient return and filtration. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0016] Figure 1 This is a top view of the overall structure of this application.

[0017] Figure 2 This is a side view of the overall structure of this application.

[0018] Figure 3 This is a perspective view of the overall structure of this application.

[0019] In the picture:

[0020] 1. Upper shell of the feeder; 2. Lower shell of the trap; 3. Filter screen; 11. First connecting pipe; 12. Second connecting rod; 101. Upper cavity; 201. Lower cavity. Detailed Implementation

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements in this disclosure, and do not specifically refer to any component or element in this disclosure, nor should they be construed as limiting this disclosure.

[0024] Example 1

[0025] like Figures 1 to 3 As shown, this application provides a multifunctional blood transfusion filter for use in the blood transfusion process, comprising: a transfusion upper shell 1 and a retainer lower shell 2 arranged symmetrically at the top and bottom, a filter screen 3 disposed between the transfusion upper shell 1 and the retainer lower shell 2, a first connecting pipe 11 disposed at the top of the transfusion upper shell 1, and a second connecting pipe 21 disposed at the bottom of the transfusion lower shell.

[0026] The upper shell 1 is provided with an upper cavity 101, and the lower shell 2 of the trap is provided with a lower cavity 201 symmetrical to the upper cavity 101. The filter screen 3 is disposed between the upper cavity 101 and the lower cavity 201.

[0027] Specifically, the first connecting pipe 11 and the second connecting pipe 21 are L-shaped and are horizontally connected to the external pipeline.

[0028] The first connecting pipe 1 connects to the blood collection device end, and the second connecting pipe 21 connects to the human body tubing end. During use, the upper casing 1 is oriented upwards, allowing blood to flow naturally from the upper casing 1 to the lower casing 2 of the trap. Due to the filtering effect of the filter screen 3, particulate impurities cannot pass through the filter screen 3 to flow to the lower casing 2 of the trap. Furthermore, due to the design of the upper cavity 101, gas in the blood will remain in the upper casing 1 and cannot flow into the lower casing 2 of the trap to enter the human body, thus blocking gas and impurities. The L-shaped design of the first connecting pipe 11 and the second connecting pipe 21 places the connection with the external tubing horizontally, increasing the stability of the connection and preventing the connection from falling off.

[0029] Preferably, the first connecting pipe 11 and the second connecting pipe 21 are integrally formed with the upper shell of the return conveyor 1 and the lower shell of the interceptor 2, respectively.

[0030] Preferably, the filter screen 3 extends out of the outer periphery of the upper shell 1 and the lower shell 2 of the interceptor, forming a first annular edge, and the first connecting pipe 11 and the second connecting pipe 21 are provided with a second edge extending from the side away from their openings to the first edge of the filter screen 3.

[0031] The first and second edges facilitate the clamping mechanism of this application, preventing it from being accidentally bumped or the pipeline from being placed horizontally, thus ensuring the return efficiency and filtration effect.

[0032] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0033] While the specific embodiments of this application have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this application. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this application are still within the scope of protection of this application.

Claims

1. A multifunctional blood transfusion filter used in blood transfusion processes, characterized in that, include: The upper shell (1) of the return feeder and the lower shell (2) of the interceptor are symmetrically arranged. A filter screen (3) is provided between the upper shell (1) of the return feeder and the lower shell (2) of the interceptor. A first connecting pipe (11) is provided at the top of the upper shell (1) and a second connecting pipe (21) is provided at the bottom of the lower shell of the return feeder. The first connecting pipe (11) and the second connecting pipe (21) are L-shaped and are horizontally connected to the external pipeline.

2. The multifunctional transfusion filter for use in blood transfusion processes according to claim 1, characterized in that: The first connecting pipe (11) and the second connecting pipe (21) are integrally formed with the upper shell of the return vessel (1) and the lower shell of the interceptor (2), respectively.

3. A multifunctional blood transfusion filter for use in blood transfusion processes according to claim 1, characterized in that: The filter (3) extends out of the outer periphery of the upper shell (1) and the lower shell (2) of the trap, forming a first annular edge.

4. A multifunctional transfusion filter for use in blood transfusion processes according to claim 3, characterized in that: The first connecting pipe (11) and the second connecting pipe (21) are provided with a second edge extending from the side away from their openings to the first edge of the filter screen (3).

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