Liquid storage tank for negative pressure suction

Abstract

The liquid storage tank comprises a tank body and a tank cover, the tank cover is installed at the top of the tank body, a liquid inlet and an air outlet are formed in the top of the tank cover, a floating support is installed at the bottom of the tank cover and located below the air outlet, a floating groove is formed in the floating support, and a liquid outlet is formed in the floating groove. The floating groove is communicated with the air outlet, and a buoy is installed in the floating groove in a sliding mode. According to the blood storage tank, the air outlet is connected with an external thrombus suction pump, the liquid inlet is connected with an external matched thrombus suction catheter, the other end of the thrombus suction catheter is inserted into a blood vessel of a human body, and the end of the thrombus suction catheter reaches the thrombus. The buoyancy of the blood can enable the buoy to move upwards, so that the buoy blocks the air outlet, the blood can be prevented from entering a pump connected with the liquid storage tank through the air outlet, and the pump is prevented from being damaged due to the fact that liquid enters the pump.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a negative pressure suction liquid storage tank. Background Technology

[0002] During interventional treatment, thrombi are aspirated from peripheral blood vessels using a thrombus aspiration catheter, along with a large amount of blood. This necessitates the delivery of allogeneic blood to the patient to replenish the lost blood, which may lead to adverse reactions such as contamination. Furthermore, the cost of the allogeneic blood is very high for the patient.

[0003] A thrombus aspiration system, disclosed in CN103932756A, includes a thrombus aspiration catheter and a blood bottle connected to it. The distal end has spirally distributed elliptical side holes to facilitate the aspiration of larger thrombi from blood vessels, preventing situations where large thrombi cannot be aspirated. This ensures complete aspiration of thrombi in the blood vessels, achieving the best therapeutic effect. During the procedure, blood drawn from the patient flows into the blood bottle and passes through a thrombus filter to remove the aspirated thrombi. The filtered blood can then be reinfused into the patient, allowing for rapid and effective utilization of the patient's own blood and avoiding adverse reactions such as contamination from foreign blood.

[0004] While existing technologies can filter blood clots, they do not have the function of preventing backflow of liquid; therefore, we propose a negative pressure suction reservoir. Utility Model Content

[0005] The purpose of this invention is to provide a liquid storage tank for negative pressure suction, so as to solve the problem that the existing technology does not have the function of preventing liquid backflow.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure suction storage tank, comprising a tank body and a tank cover, wherein the tank cover is installed on the top of the tank body, and the top of the tank cover is provided with a liquid inlet and an air outlet, and the bottom of the tank cover is installed with a float support, the float support being located below the air outlet, the float support having a float groove inside, the float groove communicating with the air outlet, and a float slidably installed in the float groove; the air outlet is connected to an external thrombus aspiration pump, and the liquid inlet is connected to an external matching thrombus aspiration catheter, the other end of which is inserted into a blood vessel in the human body, so that its end reaches the thrombus. The purpose of this storage tank is to store blood. When the blood rises to the height of the float, the buoyancy of the blood can cause the float to move upward, causing the float to block the air outlet, thus preventing blood from entering the pump connected to the storage tank through the air outlet, and preventing the pump from being damaged by liquid.

[0007] Preferably, the can lid has a liquid inlet mark on the side of the liquid inlet and a vent mark on the side of the vent.

[0008] Preferably, a thrombus baffle is installed at the bottom of the can lid, and the thrombus baffle is located between the liquid inlet and the air outlet; when the liquid is drawn, the thrombus baffle can block the air outlet, so that when the blood enters the can through the liquid inlet, it will not contaminate the air outlet.

[0009] Preferably, a filter plate is installed at the bottom of the can lid.

[0010] Preferably, the bottom of the filter plate is a circular plate with multiple evenly distributed through holes; by using the filter plate, the thrombus can fall onto the circular plate of the filter plate, thus achieving the separation of the thrombus from the blood.

[0011] Preferably, the diameter of the circular plate is slightly smaller than the inner diameter of the tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The air outlet is connected to an external thrombus aspiration pump, and the liquid inlet is connected to an external matching thrombus aspiration catheter. The other end of the thrombus aspiration catheter is inserted into the blood vessel of the human body so that its end reaches the thrombus. The purpose of this liquid storage tank is to store blood. When the blood rises to the height of the float, the buoyancy of the blood can make the float move upward and block the air outlet. This can prevent blood from entering the pump connected to the liquid storage tank through the air outlet and prevent the pump from being damaged by liquid.

[0014] 2. When aspirating liquid, the thrombus baffle can block the vent, so that when blood enters the tank through the inlet, it will not contaminate the vent. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the front view of this utility model;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a side view of the interior of this utility model without a tank.

[0020] Figure 5 This is a front view of the interior of this utility model without a tank.

[0021] Figure 6This is a schematic diagram of the internal structure of this utility model without a tank.

[0022] Figure 7 This is a utility model Figure 6 A structural diagram from another perspective.

[0023] In the diagram: 1. Tank body; 2. Tank lid; 3. Liquid inlet; 4. Liquid inlet label; 5. Air outlet; 6. Air outlet label; 7. Thrombus baffle; 8. Filter plate; 9. Float support; 10. Float trough; 11. Float. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0025] Please see Figure 1-7 In this embodiment of the present invention, a negative pressure suction liquid storage tank includes a tank body 1 and a tank cover 2. The tank cover 2 is installed on the top of the tank body 1. The top of the tank cover 2 is provided with a liquid inlet 3 and an air outlet 5. The tank cover 2 is provided with a liquid inlet mark 4 on the side of the liquid inlet 3 and an air outlet mark 6 on the side of the tank cover 2 of the air outlet 5. A float support 9 (annular column with a strip hole) is installed at the bottom of the tank cover 2. The float support 9 is located below the air outlet 5. The float support 9 has a float groove 10 inside. The tank 10 is connected to the air outlet 5, and the float 11 is slidably installed in the float tank 10; the air outlet is connected to an external thrombus aspiration pump, and the liquid inlet is connected to an external matching thrombus aspiration catheter. The other end of the thrombus aspiration catheter is inserted into the blood vessel of the human body so that its end reaches the thrombus. The purpose of this liquid storage tank is to store blood. When the blood rises to the height of the float, the buoyancy of the blood can make the float move upward and block the air outlet. This can prevent blood from entering the pump connected to the liquid storage tank through the air outlet and prevent the pump from being damaged by liquid.

[0026] like Figure 4-7 The bottom of the can lid 2 is equipped with a thrombus baffle 7, which is located between the liquid inlet 3 and the air outlet 5. When the liquid is drawn, the thrombus baffle can block the air outlet, so that when the blood enters the can through the liquid inlet, it will not contaminate the air outlet.

[0027] like Figure 4-7 A filter plate 8 is installed at the bottom of the can lid 2. The bottom of the filter plate 8 is a circular plate with multiple evenly distributed through holes. The diameter of the circular plate is slightly smaller than the inner diameter of the can body 1. The filter plate allows the thrombus to fall onto the circular plate, thus separating the thrombus from the blood.

[0028] The working principle of this utility model is as follows: the air outlet is connected to an external thrombus aspiration pump, the liquid inlet is connected to an external matching thrombus aspiration catheter, and the other end of the thrombus aspiration catheter is inserted into the blood vessel of the human body so that its end reaches the thrombus. The purpose of this liquid storage tank is to store blood. When the blood rises to the height of the float, the buoyancy of the blood can make the float move upward and block the air outlet. This can prevent blood from entering the pump connected to the liquid storage tank through the air outlet and prevent the pump from being damaged by liquid.

[0029] When aspirating liquid, the thrombus baffle can block the vent, so that when blood enters the tank through the inlet, it will not contaminate the vent.

[0030] By using a filter plate, the blood clot can be placed on the circular plate of the filter plate, thus separating the blood clot from the blood.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid storage tank for negative pressure suction, comprising a tank body (1) and a tank cover (2), characterized in that: The can lid (2) is installed on the top of the can body (1). The top of the can lid (2) is provided with a liquid inlet (3) and an air outlet (5). A float support (9) is installed at the bottom of the can lid (2). The float support (9) is located below the air outlet (5). A float groove (10) is opened inside the float support (9). The float groove (10) is connected to the air outlet (5). A float (11) is slidably installed in the float groove (10).

2. The negative pressure suction liquid storage tank according to claim 1, characterized in that: The can lid (2) is provided with a liquid inlet mark (4) on the side of the liquid inlet (3), and the can lid (2) is provided with a gas outlet mark (6) on the side of the gas outlet (5).

3. A liquid storage tank for negative pressure suction according to claim 1, characterized in that: A thrombus baffle (7) is installed at the bottom of the can lid (2), and the thrombus baffle (7) is located between the liquid inlet (3) and the air outlet (5).

4. A liquid storage tank for negative pressure suction according to claim 1, characterized in that: A filter plate (8) is installed at the bottom of the can lid (2).

5. A liquid storage tank for negative pressure suction according to claim 4, characterized in that: The bottom of the filter plate (8) is a circular plate, and the circular plate has a plurality of evenly distributed through holes.

6. A liquid storage tank for negative pressure suction according to claim 5, characterized in that: The diameter of the circular plate is slightly smaller than the inner diameter of the tank (1).

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