A device for detecting the aspiration volume of blood collection tubes

Abstract

This utility model discloses a blood collection tube aspiration volume detection device, which includes an upper water tank, a water outlet component installed at the bottom of the upper water tank, an air inlet component installed on the upper water tank, a lower water tank located below the upper water tank, a lower water tank bracket installed on the outer wall of the lower water tank, a water outlet valve installed on the outer wall of the lower water tank, a liquid outlet pipe connected to the water outlet valve, a flow sensor installed on the liquid outlet pipe, a drain needle connected to the flow sensor, and a blood collection tube sleeved on the drain needle. The upper water tank includes a water container and an upper cover installed on top of the water container. The water container is installed on the lower water tank bracket. The water outlet component is located inside the lower water tank. Without air pressure, the water in the water container cannot flow out, and the water level returns to the level before the blood collection tube aspiration, thereby ensuring the consistency of the water level in each detection and thus guaranteeing the accuracy of each detection.

Description

Technical Field

[0001] This utility model relates to the technical field of blood collection tube aspiration volume detection device, specifically a blood collection tube aspiration volume detection device. Background Technology

[0002] Currently, the accuracy of vacuum suction volume is crucial in the production of vacuum blood collection tubes. Traditional methods for measuring vacuum blood collection tube suction volume consume water from the storage tank with each measurement, causing the liquid level to drop. Under the same atmospheric pressure, changes in liquid level height lead to changes in the suction volume of the blood collection tube, resulting in inaccurate measurement and hindering accurate testing of the finished product. Previous suction volume measurement involved weighing, collecting water, and then weighing again, a time-consuming and labor-intensive process. By the time defects were detected, the production line had already produced a large number of defective products. In large-scale blood collection tube production, for manufacturers, accurate, rapid, and real-time detection of the suction volume of blood collection tubes can significantly reduce the defect rate, improve product quality stability, and increase production efficiency. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] In view of the problems existing in the above and / or the existing blood collection tube aspiration volume detection device, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a blood collection tube aspiration volume detection device. When using this device, first close the manual valve, remove the top cover, fill the water tank with water until the water level is below the top of the upper air inlet pipe, then replace the top cover, close the outlet valve, fill the lower water tank with water until the water level exceeds the lower air inlet pipe, and then open the manual valve and outlet valve. At this point, preparation is complete. Then, insert the drain needle into the blood collection tube, and the pre-set vacuum in the blood collection tube begins to draw water from the lower water tank until the vacuum is exhausted and water collection is complete. The flow sensor records the volume of water drawn out, which conforms to... The set value indicates that the test is passed. During the process of drawing water from the blood collection tube, the liquid level begins to drop. When the liquid level is lower than the lower air inlet, external air enters the water tank through the lower and upper air inlets. At this time, the water in the tank flows out through the outlet pipe, and the water level in the lower tank begins to rise. When the water level rises to the lower air inlet and the inlet is blocked, air cannot enter the water tank through the lower air inlet. Due to the lack of air pressure, the water in the tank cannot flow out, and the liquid level returns to the level before the blood collection tube was used to collect water. This ensures the consistency of the water level in each test, thereby guaranteeing the accuracy of each test.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A blood collection tube aspiration volume detection device, comprising:

[0008] The system includes an upper water tank, a water outlet assembly installed at the bottom of the upper water tank, an air inlet assembly installed on the upper water tank, a lower water tank located below the upper water tank, a lower water tank bracket installed on the outer wall of the lower water tank, a water outlet valve installed on the outer wall of the lower water tank, a liquid outlet pipe connected to the water outlet valve, a flow sensor installed on the liquid outlet pipe, a drain needle connected to the flow sensor, and a blood collection tube sleeved on the drain needle.

[0009] The upper water tank includes a water tank and an upper cover installed on top of the water tank; the water tank is installed on the lower water tank support; and the water outlet assembly is disposed in the inner cavity of the lower water tank.

[0010] As a preferred embodiment of the blood collection tube aspiration volume detection device of this utility model, the water outlet component includes a water outlet connector installed at the bottom of the water tank, a manual valve installed on the water outlet connector, and a water outlet pipe connected to the bottom of the manual valve.

[0011] As a preferred embodiment of the blood collection tube aspiration volume detection device of this utility model, the air intake component includes an air outlet connector installed at the bottom of the water tank, an upper air intake pipe connected to the air outlet connector and located inside the water tank, and a lower air intake pipe connected to the air outlet connector and located inside the lower water tank.

[0012] In a preferred embodiment of the blood collection tube aspiration volume detection device described in this utility model, the flow sensor is an ultrasonic flow detector.

[0013] In a preferred embodiment of the blood collection tube aspiration volume detection device described in this utility model, the drainage needle is a quick-change needle.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this device, first close the manual valve, remove the top cover, fill the water tank with water until the water level is below the top of the upper air inlet pipe, then close the top cover, then close the outlet valve, fill the lower water tank with water until the water level is above the lower air inlet pipe, then open the manual valve and the outlet valve. At this point, preparation is complete. Then, insert the drain needle into the blood collection tube, and the pre-set vacuum in the blood collection tube begins to draw water from the lower water tank until the vacuum is exhausted and water collection is complete. The flow sensor records the volume of water extracted, which meets the set value. If the reading is normal, the test is successful. During the water collection process, the liquid level begins to drop. When the liquid level is below the lower air inlet, external air enters the water tank through the lower and upper air inlets. At this time, the water in the tank flows out through the outlet pipe, and the water level in the lower tank begins to rise. When the water level rises to the lower air inlet and the inlet is blocked, air cannot enter the water tank through the lower air inlet. Due to the lack of air pressure, the water in the tank cannot flow out, and the liquid level returns to the level before the water collection tube was used. This ensures the consistency of the water level in each test, thereby guaranteeing the accuracy of each test. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of a blood collection tube aspiration volume detection device according to the present invention.

[0017] Figure 2 This is a schematic diagram of the lower tank of a blood collection tube aspiration volume detection device according to the present invention. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0021] This utility model provides a blood collection tube aspiration volume detection device. When using this device, first close the manual valve, remove the top cover, fill the water tank with water until the water level is below the top of the upper air inlet pipe, then close the top cover, and then close the outlet valve. Fill the lower water tank with water until the water level exceeds the lower air inlet pipe, then open the manual valve and the outlet valve. The preparation is now complete. Next, insert the drain needle into the blood collection tube. The pre-set vacuum in the blood collection tube begins to draw water from the lower water tank until the vacuum is exhausted and water collection is complete. The flow sensor records the volume of water drawn out. If the volume meets the set value... The reading shows "passed". During the water collection process, the liquid level begins to drop. When the liquid level is below the lower air inlet, external air enters the water tank through the lower and upper air inlets. At this time, the water in the tank flows out through the outlet pipe, and the water level in the lower tank begins to rise. When the water level rises to the lower air inlet and the inlet is blocked, air cannot enter the water tank through the lower air inlet. Due to the lack of air pressure, the water in the tank cannot flow out, and the liquid level returns to the level before the water collection tube was used. This ensures the consistency of the water level in each test, thereby guaranteeing the accuracy of each test.

[0022] Figures 1-2 The diagram shown is an overall structural schematic of one embodiment of the blood collection tube aspiration volume detection device of this utility model. Please refer to [link / reference]. Figures 1-2 The main body of the blood collection tube aspiration volume detection device according to this embodiment includes:

[0023] 1. Upper water tank; 2. Water outlet assembly installed at the bottom of upper water tank; 3. Air inlet assembly installed on upper water tank; 4. Lower water tank located below upper water tank; 5. Lower water tank bracket installed on the outer wall of lower water tank; 6. Water outlet valve installed on the outer wall of lower water tank; 7. Liquid outlet pipe connected to water outlet valve; 8. Flow sensor installed on liquid outlet pipe; 9. Drainage needle connected to flow sensor; and 10. Blood collection tube sleeved on drainage needle.

[0024] The upper water tank 1 includes a water tank 11 and an upper cover 12 installed on the top of the water tank 11; the water tank 11 is installed on the lower water tank bracket 5; the water outlet assembly 2 is disposed in the inner cavity of the lower water tank 4.

[0025] The water outlet assembly 2 includes a water outlet connector 21 installed at the bottom of the water tank 11, a manual valve 22 installed on the water outlet connector 21, and a water outlet pipe 23 connected to the bottom of the manual valve 22; the air inlet assembly 3 includes an air outlet connector 32 installed at the bottom of the water tank 11, an upper air inlet pipe 31 connected to the air outlet connector 32 and located inside the water tank 11, and a lower air inlet pipe 33 connected to the air outlet connector 32 and located inside the lower water tank 4; the flow sensor 8 is an ultrasonic flow detector; and the drain needle 9 is a quick-change needle.

[0026] Combination Figures 1-2 The specific usage process of the blood collection tube aspiration volume detection device of this embodiment is as follows: When using this device, first close the manual valve 22, remove the upper cover 12, fill the water tank 11 with water until the water level is lower than the top of the upper air inlet pipe 31, then close the upper cover 12, then close the water outlet valve 6, fill the lower water tank 4 with water until the water level is above the lower air inlet pipe 33, then open the manual valve 22 and the water outlet valve 6. The preparation is now complete. Then, the drain needle 9 is inserted into the blood collection tube 10, and the pre-set vacuum in the blood collection tube 10 begins to draw water from the lower water tank 4 until the vacuum is exhausted and water collection is complete. The flow sensor 8 records the volume of water drawn out, which conforms to the specified parameters. The set value indicates that the test is passed. During the water collection tube 10's water collection process, the liquid level begins to drop. When the liquid level is below the lower air inlet 33, external air enters the water tank 11 through the lower air inlet 33 and the upper air inlet 31. At this time, the water in the water tank 11 flows out through the water outlet 23, and the water level in the lower water tank 4 begins to rise. When the water level rises to the lower air inlet 33 and the inlet is blocked, air cannot enter the water tank 11 through the lower air inlet 33. Due to the lack of air pressure, the water in the water tank 11 cannot flow out, and the liquid level returns to the level before the water collection tube 10 collects water. This ensures the consistency of the water level in each test, thereby guaranteeing the accuracy of each test.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for detecting the aspiration volume of a blood collection tube, characterized in that, include: Upper water tank (1), water outlet assembly (2) installed at the bottom of the upper water tank (1), air inlet assembly (3) installed on the upper water tank (1), lower water tank (4) located below the upper water tank (1), lower water tank bracket (5) installed on the outer wall of the lower water tank (4), water outlet valve (6) installed on the outer wall of the lower water tank (4), liquid outlet pipe (7) connected to the water outlet valve (6), flow sensor (8) installed on the liquid outlet pipe (7), drain needle (9) connected to the flow sensor (8), and blood collection tube (10) sleeved on the drain needle (9); The upper water tank (1) includes a water tank (11) and an upper cover (12) installed on the top of the water tank (11); the water tank (11) is installed on the lower water tank bracket (5); the water outlet assembly (2) is disposed in the inner cavity of the lower water tank (4).

2. The blood collection tube aspiration volume detection device according to claim 1, characterized in that, The water outlet assembly (2) includes a water outlet connector (21) installed at the bottom of the water tank (11), a manual valve (22) installed on the water outlet connector (21), and a water outlet pipe (23) connected to the bottom of the manual valve (22).

3. The blood collection tube aspiration volume detection device according to claim 1, characterized in that, The air intake assembly (3) includes an air outlet connector (32) installed at the bottom of the water tank (11), an upper air intake pipe (31) connected to the air outlet connector (32) and located inside the water tank (11), and a lower air intake pipe (33) connected to the air outlet connector (32) and located inside the lower water tank (4).

4. The blood collection tube aspiration volume detection device according to claim 1, characterized in that, The flow sensor (8) is an ultrasonic flow detector.

5. The blood collection tube aspiration volume detection device according to claim 1, characterized in that, The drain needle (9) is a quick-change needle.

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